Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/jinja2/compiler.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 # -*- coding: utf-8 -*-
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2 """Compiles nodes from the parser into Python code."""
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3 from collections import namedtuple
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4 from functools import update_wrapper
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5 from itertools import chain
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6 from keyword import iskeyword as is_python_keyword
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7
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8 from markupsafe import escape
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9 from markupsafe import Markup
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10
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11 from . import nodes
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12 from ._compat import imap
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13 from ._compat import iteritems
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14 from ._compat import izip
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15 from ._compat import NativeStringIO
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16 from ._compat import range_type
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17 from ._compat import string_types
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18 from ._compat import text_type
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19 from .exceptions import TemplateAssertionError
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20 from .idtracking import Symbols
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21 from .idtracking import VAR_LOAD_ALIAS
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22 from .idtracking import VAR_LOAD_PARAMETER
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23 from .idtracking import VAR_LOAD_RESOLVE
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24 from .idtracking import VAR_LOAD_UNDEFINED
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25 from .nodes import EvalContext
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26 from .optimizer import Optimizer
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27 from .utils import concat
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28 from .visitor import NodeVisitor
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29
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30 operators = {
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31 "eq": "==",
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32 "ne": "!=",
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33 "gt": ">",
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34 "gteq": ">=",
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35 "lt": "<",
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36 "lteq": "<=",
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37 "in": "in",
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38 "notin": "not in",
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39 }
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40
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41 # what method to iterate over items do we want to use for dict iteration
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42 # in generated code? on 2.x let's go with iteritems, on 3.x with items
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43 if hasattr(dict, "iteritems"):
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44 dict_item_iter = "iteritems"
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45 else:
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46 dict_item_iter = "items"
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47
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48 code_features = ["division"]
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49
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50 # does this python version support generator stops? (PEP 0479)
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51 try:
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52 exec("from __future__ import generator_stop")
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53 code_features.append("generator_stop")
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54 except SyntaxError:
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55 pass
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56
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57 # does this python version support yield from?
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58 try:
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59 exec("def f(): yield from x()")
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60 except SyntaxError:
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61 supports_yield_from = False
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62 else:
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63 supports_yield_from = True
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64
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65
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66 def optimizeconst(f):
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67 def new_func(self, node, frame, **kwargs):
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68 # Only optimize if the frame is not volatile
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69 if self.optimized and not frame.eval_ctx.volatile:
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70 new_node = self.optimizer.visit(node, frame.eval_ctx)
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71 if new_node != node:
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72 return self.visit(new_node, frame)
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73 return f(self, node, frame, **kwargs)
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74
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75 return update_wrapper(new_func, f)
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76
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77
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78 def generate(
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79 node, environment, name, filename, stream=None, defer_init=False, optimized=True
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80 ):
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81 """Generate the python source for a node tree."""
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82 if not isinstance(node, nodes.Template):
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83 raise TypeError("Can't compile non template nodes")
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84 generator = environment.code_generator_class(
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85 environment, name, filename, stream, defer_init, optimized
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86 )
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87 generator.visit(node)
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88 if stream is None:
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89 return generator.stream.getvalue()
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90
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91
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92 def has_safe_repr(value):
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93 """Does the node have a safe representation?"""
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94 if value is None or value is NotImplemented or value is Ellipsis:
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95 return True
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96 if type(value) in (bool, int, float, complex, range_type, Markup) + string_types:
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97 return True
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98 if type(value) in (tuple, list, set, frozenset):
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99 for item in value:
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100 if not has_safe_repr(item):
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101 return False
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102 return True
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103 elif type(value) is dict:
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104 for key, value in iteritems(value):
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105 if not has_safe_repr(key):
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106 return False
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107 if not has_safe_repr(value):
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108 return False
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109 return True
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110 return False
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111
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112
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113 def find_undeclared(nodes, names):
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114 """Check if the names passed are accessed undeclared. The return value
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115 is a set of all the undeclared names from the sequence of names found.
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116 """
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117 visitor = UndeclaredNameVisitor(names)
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118 try:
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119 for node in nodes:
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120 visitor.visit(node)
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121 except VisitorExit:
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122 pass
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123 return visitor.undeclared
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124
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125
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126 class MacroRef(object):
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127 def __init__(self, node):
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128 self.node = node
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129 self.accesses_caller = False
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130 self.accesses_kwargs = False
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131 self.accesses_varargs = False
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132
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133
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134 class Frame(object):
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135 """Holds compile time information for us."""
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136
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137 def __init__(self, eval_ctx, parent=None, level=None):
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138 self.eval_ctx = eval_ctx
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139 self.symbols = Symbols(parent and parent.symbols or None, level=level)
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140
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141 # a toplevel frame is the root + soft frames such as if conditions.
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142 self.toplevel = False
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143
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144 # the root frame is basically just the outermost frame, so no if
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145 # conditions. This information is used to optimize inheritance
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146 # situations.
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147 self.rootlevel = False
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148
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149 # in some dynamic inheritance situations the compiler needs to add
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150 # write tests around output statements.
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151 self.require_output_check = parent and parent.require_output_check
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152
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153 # inside some tags we are using a buffer rather than yield statements.
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154 # this for example affects {% filter %} or {% macro %}. If a frame
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155 # is buffered this variable points to the name of the list used as
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156 # buffer.
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157 self.buffer = None
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158
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159 # the name of the block we're in, otherwise None.
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160 self.block = parent and parent.block or None
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161
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162 # the parent of this frame
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163 self.parent = parent
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164
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165 if parent is not None:
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166 self.buffer = parent.buffer
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167
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168 def copy(self):
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169 """Create a copy of the current one."""
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170 rv = object.__new__(self.__class__)
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171 rv.__dict__.update(self.__dict__)
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172 rv.symbols = self.symbols.copy()
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173 return rv
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174
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175 def inner(self, isolated=False):
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176 """Return an inner frame."""
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177 if isolated:
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178 return Frame(self.eval_ctx, level=self.symbols.level + 1)
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179 return Frame(self.eval_ctx, self)
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180
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181 def soft(self):
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182 """Return a soft frame. A soft frame may not be modified as
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183 standalone thing as it shares the resources with the frame it
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184 was created of, but it's not a rootlevel frame any longer.
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185
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186 This is only used to implement if-statements.
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187 """
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188 rv = self.copy()
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189 rv.rootlevel = False
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190 return rv
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191
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192 __copy__ = copy
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193
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194
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195 class VisitorExit(RuntimeError):
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196 """Exception used by the `UndeclaredNameVisitor` to signal a stop."""
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197
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198
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199 class DependencyFinderVisitor(NodeVisitor):
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200 """A visitor that collects filter and test calls."""
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201
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202 def __init__(self):
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203 self.filters = set()
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204 self.tests = set()
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205
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206 def visit_Filter(self, node):
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207 self.generic_visit(node)
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208 self.filters.add(node.name)
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209
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210 def visit_Test(self, node):
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211 self.generic_visit(node)
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212 self.tests.add(node.name)
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213
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214 def visit_Block(self, node):
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215 """Stop visiting at blocks."""
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216
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217
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218 class UndeclaredNameVisitor(NodeVisitor):
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219 """A visitor that checks if a name is accessed without being
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220 declared. This is different from the frame visitor as it will
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221 not stop at closure frames.
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222 """
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223
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224 def __init__(self, names):
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225 self.names = set(names)
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226 self.undeclared = set()
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227
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228 def visit_Name(self, node):
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229 if node.ctx == "load" and node.name in self.names:
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230 self.undeclared.add(node.name)
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231 if self.undeclared == self.names:
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232 raise VisitorExit()
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233 else:
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234 self.names.discard(node.name)
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235
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236 def visit_Block(self, node):
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237 """Stop visiting a blocks."""
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238
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239
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240 class CompilerExit(Exception):
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241 """Raised if the compiler encountered a situation where it just
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242 doesn't make sense to further process the code. Any block that
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243 raises such an exception is not further processed.
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244 """
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245
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246
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247 class CodeGenerator(NodeVisitor):
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248 def __init__(
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249 self, environment, name, filename, stream=None, defer_init=False, optimized=True
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250 ):
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251 if stream is None:
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252 stream = NativeStringIO()
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253 self.environment = environment
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254 self.name = name
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255 self.filename = filename
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256 self.stream = stream
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257 self.created_block_context = False
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258 self.defer_init = defer_init
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259 self.optimized = optimized
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260 if optimized:
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261 self.optimizer = Optimizer(environment)
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262
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263 # aliases for imports
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264 self.import_aliases = {}
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265
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266 # a registry for all blocks. Because blocks are moved out
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267 # into the global python scope they are registered here
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268 self.blocks = {}
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269
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270 # the number of extends statements so far
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271 self.extends_so_far = 0
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272
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273 # some templates have a rootlevel extends. In this case we
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274 # can safely assume that we're a child template and do some
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275 # more optimizations.
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276 self.has_known_extends = False
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277
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278 # the current line number
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279 self.code_lineno = 1
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280
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281 # registry of all filters and tests (global, not block local)
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282 self.tests = {}
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283 self.filters = {}
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284
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285 # the debug information
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286 self.debug_info = []
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287 self._write_debug_info = None
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288
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289 # the number of new lines before the next write()
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290 self._new_lines = 0
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291
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292 # the line number of the last written statement
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293 self._last_line = 0
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294
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295 # true if nothing was written so far.
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296 self._first_write = True
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297
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298 # used by the `temporary_identifier` method to get new
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299 # unique, temporary identifier
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300 self._last_identifier = 0
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301
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302 # the current indentation
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303 self._indentation = 0
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304
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305 # Tracks toplevel assignments
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306 self._assign_stack = []
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307
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308 # Tracks parameter definition blocks
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309 self._param_def_block = []
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310
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311 # Tracks the current context.
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312 self._context_reference_stack = ["context"]
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313
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314 # -- Various compilation helpers
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315
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316 def fail(self, msg, lineno):
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317 """Fail with a :exc:`TemplateAssertionError`."""
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318 raise TemplateAssertionError(msg, lineno, self.name, self.filename)
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319
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320 def temporary_identifier(self):
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321 """Get a new unique identifier."""
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322 self._last_identifier += 1
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323 return "t_%d" % self._last_identifier
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324
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325 def buffer(self, frame):
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326 """Enable buffering for the frame from that point onwards."""
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327 frame.buffer = self.temporary_identifier()
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328 self.writeline("%s = []" % frame.buffer)
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329
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330 def return_buffer_contents(self, frame, force_unescaped=False):
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331 """Return the buffer contents of the frame."""
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332 if not force_unescaped:
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333 if frame.eval_ctx.volatile:
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334 self.writeline("if context.eval_ctx.autoescape:")
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335 self.indent()
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336 self.writeline("return Markup(concat(%s))" % frame.buffer)
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337 self.outdent()
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338 self.writeline("else:")
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339 self.indent()
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340 self.writeline("return concat(%s)" % frame.buffer)
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341 self.outdent()
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342 return
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343 elif frame.eval_ctx.autoescape:
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344 self.writeline("return Markup(concat(%s))" % frame.buffer)
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345 return
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346 self.writeline("return concat(%s)" % frame.buffer)
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347
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348 def indent(self):
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349 """Indent by one."""
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350 self._indentation += 1
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351
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352 def outdent(self, step=1):
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353 """Outdent by step."""
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354 self._indentation -= step
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355
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356 def start_write(self, frame, node=None):
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357 """Yield or write into the frame buffer."""
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358 if frame.buffer is None:
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359 self.writeline("yield ", node)
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360 else:
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361 self.writeline("%s.append(" % frame.buffer, node)
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362
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363 def end_write(self, frame):
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364 """End the writing process started by `start_write`."""
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365 if frame.buffer is not None:
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366 self.write(")")
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367
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368 def simple_write(self, s, frame, node=None):
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369 """Simple shortcut for start_write + write + end_write."""
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370 self.start_write(frame, node)
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371 self.write(s)
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372 self.end_write(frame)
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373
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374 def blockvisit(self, nodes, frame):
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375 """Visit a list of nodes as block in a frame. If the current frame
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376 is no buffer a dummy ``if 0: yield None`` is written automatically.
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377 """
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378 try:
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379 self.writeline("pass")
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380 for node in nodes:
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381 self.visit(node, frame)
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382 except CompilerExit:
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383 pass
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384
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385 def write(self, x):
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386 """Write a string into the output stream."""
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387 if self._new_lines:
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388 if not self._first_write:
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389 self.stream.write("\n" * self._new_lines)
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390 self.code_lineno += self._new_lines
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391 if self._write_debug_info is not None:
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392 self.debug_info.append((self._write_debug_info, self.code_lineno))
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393 self._write_debug_info = None
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394 self._first_write = False
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diff changeset
395 self.stream.write(" " * self._indentation)
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396 self._new_lines = 0
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397 self.stream.write(x)
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398
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399 def writeline(self, x, node=None, extra=0):
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diff changeset
400 """Combination of newline and write."""
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diff changeset
401 self.newline(node, extra)
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402 self.write(x)
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403
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404 def newline(self, node=None, extra=0):
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diff changeset
405 """Add one or more newlines before the next write."""
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406 self._new_lines = max(self._new_lines, 1 + extra)
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407 if node is not None and node.lineno != self._last_line:
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408 self._write_debug_info = node.lineno
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409 self._last_line = node.lineno
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410
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411 def signature(self, node, frame, extra_kwargs=None):
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412 """Writes a function call to the stream for the current node.
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413 A leading comma is added automatically. The extra keyword
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414 arguments may not include python keywords otherwise a syntax
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415 error could occur. The extra keyword arguments should be given
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416 as python dict.
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417 """
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418 # if any of the given keyword arguments is a python keyword
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419 # we have to make sure that no invalid call is created.
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420 kwarg_workaround = False
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421 for kwarg in chain((x.key for x in node.kwargs), extra_kwargs or ()):
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422 if is_python_keyword(kwarg):
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423 kwarg_workaround = True
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424 break
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425
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426 for arg in node.args:
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427 self.write(", ")
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428 self.visit(arg, frame)
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429
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430 if not kwarg_workaround:
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431 for kwarg in node.kwargs:
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432 self.write(", ")
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433 self.visit(kwarg, frame)
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434 if extra_kwargs is not None:
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435 for key, value in iteritems(extra_kwargs):
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436 self.write(", %s=%s" % (key, value))
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437 if node.dyn_args:
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438 self.write(", *")
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439 self.visit(node.dyn_args, frame)
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440
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441 if kwarg_workaround:
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442 if node.dyn_kwargs is not None:
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443 self.write(", **dict({")
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444 else:
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445 self.write(", **{")
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446 for kwarg in node.kwargs:
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447 self.write("%r: " % kwarg.key)
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448 self.visit(kwarg.value, frame)
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449 self.write(", ")
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450 if extra_kwargs is not None:
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451 for key, value in iteritems(extra_kwargs):
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452 self.write("%r: %s, " % (key, value))
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453 if node.dyn_kwargs is not None:
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diff changeset
454 self.write("}, **")
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455 self.visit(node.dyn_kwargs, frame)
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456 self.write(")")
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457 else:
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458 self.write("}")
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459
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460 elif node.dyn_kwargs is not None:
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461 self.write(", **")
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462 self.visit(node.dyn_kwargs, frame)
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463
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464 def pull_dependencies(self, nodes):
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465 """Pull all the dependencies."""
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466 visitor = DependencyFinderVisitor()
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467 for node in nodes:
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468 visitor.visit(node)
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469 for dependency in "filters", "tests":
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470 mapping = getattr(self, dependency)
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471 for name in getattr(visitor, dependency):
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472 if name not in mapping:
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473 mapping[name] = self.temporary_identifier()
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474 self.writeline(
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475 "%s = environment.%s[%r]" % (mapping[name], dependency, name)
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476 )
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477
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478 def enter_frame(self, frame):
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479 undefs = []
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480 for target, (action, param) in iteritems(frame.symbols.loads):
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diff changeset
481 if action == VAR_LOAD_PARAMETER:
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482 pass
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483 elif action == VAR_LOAD_RESOLVE:
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484 self.writeline("%s = %s(%r)" % (target, self.get_resolve_func(), param))
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485 elif action == VAR_LOAD_ALIAS:
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486 self.writeline("%s = %s" % (target, param))
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487 elif action == VAR_LOAD_UNDEFINED:
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488 undefs.append(target)
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489 else:
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490 raise NotImplementedError("unknown load instruction")
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491 if undefs:
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492 self.writeline("%s = missing" % " = ".join(undefs))
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493
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494 def leave_frame(self, frame, with_python_scope=False):
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495 if not with_python_scope:
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496 undefs = []
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497 for target, _ in iteritems(frame.symbols.loads):
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498 undefs.append(target)
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499 if undefs:
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500 self.writeline("%s = missing" % " = ".join(undefs))
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501
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502 def func(self, name):
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503 if self.environment.is_async:
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504 return "async def %s" % name
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505 return "def %s" % name
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506
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507 def macro_body(self, node, frame):
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508 """Dump the function def of a macro or call block."""
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509 frame = frame.inner()
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510 frame.symbols.analyze_node(node)
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511 macro_ref = MacroRef(node)
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512
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513 explicit_caller = None
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514 skip_special_params = set()
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515 args = []
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516 for idx, arg in enumerate(node.args):
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517 if arg.name == "caller":
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518 explicit_caller = idx
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519 if arg.name in ("kwargs", "varargs"):
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520 skip_special_params.add(arg.name)
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diff changeset
521 args.append(frame.symbols.ref(arg.name))
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guerler
parents:
diff changeset
522
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parents:
diff changeset
523 undeclared = find_undeclared(node.body, ("caller", "kwargs", "varargs"))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
524
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
525 if "caller" in undeclared:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
526 # In older Jinja versions there was a bug that allowed caller
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
527 # to retain the special behavior even if it was mentioned in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
528 # the argument list. However thankfully this was only really
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
529 # working if it was the last argument. So we are explicitly
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
530 # checking this now and error out if it is anywhere else in
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
531 # the argument list.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532 if explicit_caller is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
534 node.defaults[explicit_caller - len(node.args)]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535 except IndexError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 self.fail(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537 "When defining macros or call blocks the "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538 'special "caller" argument must be omitted '
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
539 "or be given a default.",
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540 node.lineno,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
541 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
542 else:
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parents:
diff changeset
543 args.append(frame.symbols.declare_parameter("caller"))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
544 macro_ref.accesses_caller = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
545 if "kwargs" in undeclared and "kwargs" not in skip_special_params:
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guerler
parents:
diff changeset
546 args.append(frame.symbols.declare_parameter("kwargs"))
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guerler
parents:
diff changeset
547 macro_ref.accesses_kwargs = True
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
548 if "varargs" in undeclared and "varargs" not in skip_special_params:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
549 args.append(frame.symbols.declare_parameter("varargs"))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
550 macro_ref.accesses_varargs = True
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guerler
parents:
diff changeset
551
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parents:
diff changeset
552 # macros are delayed, they never require output checks
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
553 frame.require_output_check = False
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
554 frame.symbols.analyze_node(node)
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guerler
parents:
diff changeset
555 self.writeline("%s(%s):" % (self.func("macro"), ", ".join(args)), node)
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parents:
diff changeset
556 self.indent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
557
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
558 self.buffer(frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
559 self.enter_frame(frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
560
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
561 self.push_parameter_definitions(frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
562 for idx, arg in enumerate(node.args):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
563 ref = frame.symbols.ref(arg.name)
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guerler
parents:
diff changeset
564 self.writeline("if %s is missing:" % ref)
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guerler
parents:
diff changeset
565 self.indent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
566 try:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
567 default = node.defaults[idx - len(node.args)]
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guerler
parents:
diff changeset
568 except IndexError:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
569 self.writeline(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
570 "%s = undefined(%r, name=%r)"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
571 % (ref, "parameter %r was not provided" % arg.name, arg.name)
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diff changeset
572 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
573 else:
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parents:
diff changeset
574 self.writeline("%s = " % ref)
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parents:
diff changeset
575 self.visit(default, frame)
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parents:
diff changeset
576 self.mark_parameter_stored(ref)
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parents:
diff changeset
577 self.outdent()
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diff changeset
578 self.pop_parameter_definitions()
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parents:
diff changeset
579
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parents:
diff changeset
580 self.blockvisit(node.body, frame)
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parents:
diff changeset
581 self.return_buffer_contents(frame, force_unescaped=True)
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guerler
parents:
diff changeset
582 self.leave_frame(frame, with_python_scope=True)
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guerler
parents:
diff changeset
583 self.outdent()
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parents:
diff changeset
584
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parents:
diff changeset
585 return frame, macro_ref
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guerler
parents:
diff changeset
586
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guerler
parents:
diff changeset
587 def macro_def(self, macro_ref, frame):
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guerler
parents:
diff changeset
588 """Dump the macro definition for the def created by macro_body."""
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guerler
parents:
diff changeset
589 arg_tuple = ", ".join(repr(x.name) for x in macro_ref.node.args)
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guerler
parents:
diff changeset
590 name = getattr(macro_ref.node, "name", None)
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parents:
diff changeset
591 if len(macro_ref.node.args) == 1:
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guerler
parents:
diff changeset
592 arg_tuple += ","
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
593 self.write(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
594 "Macro(environment, macro, %r, (%s), %r, %r, %r, "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
595 "context.eval_ctx.autoescape)"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
596 % (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
597 name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
598 arg_tuple,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
599 macro_ref.accesses_kwargs,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
600 macro_ref.accesses_varargs,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
601 macro_ref.accesses_caller,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
602 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
603 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
604
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
605 def position(self, node):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
606 """Return a human readable position for the node."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 rv = "line %d" % node.lineno
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
608 if self.name is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
609 rv += " in " + repr(self.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
610 return rv
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
611
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
612 def dump_local_context(self, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
613 return "{%s}" % ", ".join(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
614 "%r: %s" % (name, target)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
615 for name, target in iteritems(frame.symbols.dump_stores())
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
616 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
617
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
618 def write_commons(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
619 """Writes a common preamble that is used by root and block functions.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
620 Primarily this sets up common local helpers and enforces a generator
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
621 through a dead branch.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
622 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
623 self.writeline("resolve = context.resolve_or_missing")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
624 self.writeline("undefined = environment.undefined")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
625 # always use the standard Undefined class for the implicit else of
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
626 # conditional expressions
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
627 self.writeline("cond_expr_undefined = Undefined")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
628 self.writeline("if 0: yield None")
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guerler
parents:
diff changeset
629
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
630 def push_parameter_definitions(self, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
631 """Pushes all parameter targets from the given frame into a local
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
632 stack that permits tracking of yet to be assigned parameters. In
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
633 particular this enables the optimization from `visit_Name` to skip
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
634 undefined expressions for parameters in macros as macros can reference
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
635 otherwise unbound parameters.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
636 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
637 self._param_def_block.append(frame.symbols.dump_param_targets())
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guerler
parents:
diff changeset
638
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
639 def pop_parameter_definitions(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
640 """Pops the current parameter definitions set."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
641 self._param_def_block.pop()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
643 def mark_parameter_stored(self, target):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644 """Marks a parameter in the current parameter definitions as stored.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
645 This will skip the enforced undefined checks.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
646 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
647 if self._param_def_block:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
648 self._param_def_block[-1].discard(target)
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649
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650 def push_context_reference(self, target):
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651 self._context_reference_stack.append(target)
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652
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653 def pop_context_reference(self):
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654 self._context_reference_stack.pop()
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655
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656 def get_context_ref(self):
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657 return self._context_reference_stack[-1]
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658
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659 def get_resolve_func(self):
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660 target = self._context_reference_stack[-1]
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661 if target == "context":
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662 return "resolve"
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663 return "%s.resolve" % target
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664
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665 def derive_context(self, frame):
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666 return "%s.derived(%s)" % (
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667 self.get_context_ref(),
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668 self.dump_local_context(frame),
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669 )
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670
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671 def parameter_is_undeclared(self, target):
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672 """Checks if a given target is an undeclared parameter."""
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673 if not self._param_def_block:
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674 return False
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675 return target in self._param_def_block[-1]
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676
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677 def push_assign_tracking(self):
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678 """Pushes a new layer for assignment tracking."""
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679 self._assign_stack.append(set())
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680
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681 def pop_assign_tracking(self, frame):
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682 """Pops the topmost level for assignment tracking and updates the
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683 context variables if necessary.
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684 """
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685 vars = self._assign_stack.pop()
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686 if not frame.toplevel or not vars:
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687 return
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688 public_names = [x for x in vars if x[:1] != "_"]
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689 if len(vars) == 1:
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690 name = next(iter(vars))
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691 ref = frame.symbols.ref(name)
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692 self.writeline("context.vars[%r] = %s" % (name, ref))
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693 else:
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694 self.writeline("context.vars.update({")
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695 for idx, name in enumerate(vars):
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696 if idx:
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697 self.write(", ")
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698 ref = frame.symbols.ref(name)
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699 self.write("%r: %s" % (name, ref))
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700 self.write("})")
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701 if public_names:
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702 if len(public_names) == 1:
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703 self.writeline("context.exported_vars.add(%r)" % public_names[0])
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704 else:
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705 self.writeline(
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706 "context.exported_vars.update((%s))"
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707 % ", ".join(imap(repr, public_names))
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708 )
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709
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710 # -- Statement Visitors
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711
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712 def visit_Template(self, node, frame=None):
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713 assert frame is None, "no root frame allowed"
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714 eval_ctx = EvalContext(self.environment, self.name)
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715
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716 from .runtime import exported
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717
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718 self.writeline("from __future__ import %s" % ", ".join(code_features))
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719 self.writeline("from jinja2.runtime import " + ", ".join(exported))
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720
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721 if self.environment.is_async:
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722 self.writeline(
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723 "from jinja2.asyncsupport import auto_await, "
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724 "auto_aiter, AsyncLoopContext"
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725 )
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726
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diff changeset
727 # if we want a deferred initialization we cannot move the
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728 # environment into a local name
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729 envenv = not self.defer_init and ", environment=environment" or ""
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730
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731 # do we have an extends tag at all? If not, we can save some
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diff changeset
732 # overhead by just not processing any inheritance code.
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733 have_extends = node.find(nodes.Extends) is not None
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734
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735 # find all blocks
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736 for block in node.find_all(nodes.Block):
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737 if block.name in self.blocks:
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738 self.fail("block %r defined twice" % block.name, block.lineno)
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739 self.blocks[block.name] = block
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740
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741 # find all imports and import them
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742 for import_ in node.find_all(nodes.ImportedName):
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diff changeset
743 if import_.importname not in self.import_aliases:
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744 imp = import_.importname
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745 self.import_aliases[imp] = alias = self.temporary_identifier()
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746 if "." in imp:
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747 module, obj = imp.rsplit(".", 1)
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748 self.writeline("from %s import %s as %s" % (module, obj, alias))
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749 else:
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750 self.writeline("import %s as %s" % (imp, alias))
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751
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752 # add the load name
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753 self.writeline("name = %r" % self.name)
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754
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755 # generate the root render function.
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diff changeset
756 self.writeline(
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757 "%s(context, missing=missing%s):" % (self.func("root"), envenv), extra=1
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758 )
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759 self.indent()
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diff changeset
760 self.write_commons()
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761
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762 # process the root
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diff changeset
763 frame = Frame(eval_ctx)
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diff changeset
764 if "self" in find_undeclared(node.body, ("self",)):
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diff changeset
765 ref = frame.symbols.declare_parameter("self")
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diff changeset
766 self.writeline("%s = TemplateReference(context)" % ref)
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diff changeset
767 frame.symbols.analyze_node(node)
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diff changeset
768 frame.toplevel = frame.rootlevel = True
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769 frame.require_output_check = have_extends and not self.has_known_extends
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770 if have_extends:
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diff changeset
771 self.writeline("parent_template = None")
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diff changeset
772 self.enter_frame(frame)
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773 self.pull_dependencies(node.body)
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774 self.blockvisit(node.body, frame)
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775 self.leave_frame(frame, with_python_scope=True)
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parents:
diff changeset
776 self.outdent()
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guerler
parents:
diff changeset
777
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parents:
diff changeset
778 # make sure that the parent root is called.
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guerler
parents:
diff changeset
779 if have_extends:
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parents:
diff changeset
780 if not self.has_known_extends:
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parents:
diff changeset
781 self.indent()
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parents:
diff changeset
782 self.writeline("if parent_template is not None:")
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parents:
diff changeset
783 self.indent()
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parents:
diff changeset
784 if supports_yield_from and not self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
785 self.writeline("yield from parent_template.root_render_func(context)")
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guerler
parents:
diff changeset
786 else:
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parents:
diff changeset
787 self.writeline(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
788 "%sfor event in parent_template."
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guerler
parents:
diff changeset
789 "root_render_func(context):"
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guerler
parents:
diff changeset
790 % (self.environment.is_async and "async " or "")
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parents:
diff changeset
791 )
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parents:
diff changeset
792 self.indent()
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parents:
diff changeset
793 self.writeline("yield event")
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parents:
diff changeset
794 self.outdent()
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parents:
diff changeset
795 self.outdent(1 + (not self.has_known_extends))
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parents:
diff changeset
796
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parents:
diff changeset
797 # at this point we now have the blocks collected and can visit them too.
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guerler
parents:
diff changeset
798 for name, block in iteritems(self.blocks):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
799 self.writeline(
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parents:
diff changeset
800 "%s(context, missing=missing%s):"
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guerler
parents:
diff changeset
801 % (self.func("block_" + name), envenv),
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parents:
diff changeset
802 block,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
803 1,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
804 )
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parents:
diff changeset
805 self.indent()
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parents:
diff changeset
806 self.write_commons()
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parents:
diff changeset
807 # It's important that we do not make this frame a child of the
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guerler
parents:
diff changeset
808 # toplevel template. This would cause a variety of
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parents:
diff changeset
809 # interesting issues with identifier tracking.
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parents:
diff changeset
810 block_frame = Frame(eval_ctx)
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guerler
parents:
diff changeset
811 undeclared = find_undeclared(block.body, ("self", "super"))
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guerler
parents:
diff changeset
812 if "self" in undeclared:
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parents:
diff changeset
813 ref = block_frame.symbols.declare_parameter("self")
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guerler
parents:
diff changeset
814 self.writeline("%s = TemplateReference(context)" % ref)
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guerler
parents:
diff changeset
815 if "super" in undeclared:
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guerler
parents:
diff changeset
816 ref = block_frame.symbols.declare_parameter("super")
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guerler
parents:
diff changeset
817 self.writeline("%s = context.super(%r, block_%s)" % (ref, name, name))
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guerler
parents:
diff changeset
818 block_frame.symbols.analyze_node(block)
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parents:
diff changeset
819 block_frame.block = name
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parents:
diff changeset
820 self.enter_frame(block_frame)
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guerler
parents:
diff changeset
821 self.pull_dependencies(block.body)
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guerler
parents:
diff changeset
822 self.blockvisit(block.body, block_frame)
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guerler
parents:
diff changeset
823 self.leave_frame(block_frame, with_python_scope=True)
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parents:
diff changeset
824 self.outdent()
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parents:
diff changeset
825
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parents:
diff changeset
826 self.writeline(
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parents:
diff changeset
827 "blocks = {%s}" % ", ".join("%r: block_%s" % (x, x) for x in self.blocks),
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guerler
parents:
diff changeset
828 extra=1,
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parents:
diff changeset
829 )
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parents:
diff changeset
830
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parents:
diff changeset
831 # add a function that returns the debug info
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guerler
parents:
diff changeset
832 self.writeline(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
833 "debug_info = %r" % "&".join("%s=%s" % x for x in self.debug_info)
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parents:
diff changeset
834 )
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diff changeset
835
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parents:
diff changeset
836 def visit_Block(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
837 """Call a block and register it for the template."""
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parents:
diff changeset
838 level = 0
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parents:
diff changeset
839 if frame.toplevel:
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parents:
diff changeset
840 # if we know that we are a child template, there is no need to
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parents:
diff changeset
841 # check if we are one
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parents:
diff changeset
842 if self.has_known_extends:
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parents:
diff changeset
843 return
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parents:
diff changeset
844 if self.extends_so_far > 0:
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guerler
parents:
diff changeset
845 self.writeline("if parent_template is None:")
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guerler
parents:
diff changeset
846 self.indent()
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parents:
diff changeset
847 level += 1
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parents:
diff changeset
848
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parents:
diff changeset
849 if node.scoped:
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parents:
diff changeset
850 context = self.derive_context(frame)
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parents:
diff changeset
851 else:
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parents:
diff changeset
852 context = self.get_context_ref()
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parents:
diff changeset
853
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parents:
diff changeset
854 if (
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guerler
parents:
diff changeset
855 supports_yield_from
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
856 and not self.environment.is_async
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guerler
parents:
diff changeset
857 and frame.buffer is None
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guerler
parents:
diff changeset
858 ):
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parents:
diff changeset
859 self.writeline(
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guerler
parents:
diff changeset
860 "yield from context.blocks[%r][0](%s)" % (node.name, context), node
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guerler
parents:
diff changeset
861 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
862 else:
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parents:
diff changeset
863 loop = self.environment.is_async and "async for" or "for"
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guerler
parents:
diff changeset
864 self.writeline(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
865 "%s event in context.blocks[%r][0](%s):" % (loop, node.name, context),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
866 node,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
867 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
868 self.indent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
869 self.simple_write("event", frame)
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guerler
parents:
diff changeset
870 self.outdent()
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guerler
parents:
diff changeset
871
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guerler
parents:
diff changeset
872 self.outdent(level)
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guerler
parents:
diff changeset
873
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guerler
parents:
diff changeset
874 def visit_Extends(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
875 """Calls the extender."""
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
876 if not frame.toplevel:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
877 self.fail("cannot use extend from a non top-level scope", node.lineno)
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guerler
parents:
diff changeset
878
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
879 # if the number of extends statements in general is zero so
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
880 # far, we don't have to add a check if something extended
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guerler
parents:
diff changeset
881 # the template before this one.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
882 if self.extends_so_far > 0:
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guerler
parents:
diff changeset
883
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
884 # if we have a known extends we just add a template runtime
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
885 # error into the generated code. We could catch that at compile
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guerler
parents:
diff changeset
886 # time too, but i welcome it not to confuse users by throwing the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
887 # same error at different times just "because we can".
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
888 if not self.has_known_extends:
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guerler
parents:
diff changeset
889 self.writeline("if parent_template is not None:")
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guerler
parents:
diff changeset
890 self.indent()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
891 self.writeline("raise TemplateRuntimeError(%r)" % "extended multiple times")
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guerler
parents:
diff changeset
892
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guerler
parents:
diff changeset
893 # if we have a known extends already we don't need that code here
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guerler
parents:
diff changeset
894 # as we know that the template execution will end here.
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guerler
parents:
diff changeset
895 if self.has_known_extends:
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guerler
parents:
diff changeset
896 raise CompilerExit()
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parents:
diff changeset
897 else:
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parents:
diff changeset
898 self.outdent()
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guerler
parents:
diff changeset
899
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guerler
parents:
diff changeset
900 self.writeline("parent_template = environment.get_template(", node)
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guerler
parents:
diff changeset
901 self.visit(node.template, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
902 self.write(", %r)" % self.name)
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guerler
parents:
diff changeset
903 self.writeline(
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guerler
parents:
diff changeset
904 "for name, parent_block in parent_template.blocks.%s():" % dict_item_iter
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parents:
diff changeset
905 )
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parents:
diff changeset
906 self.indent()
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parents:
diff changeset
907 self.writeline("context.blocks.setdefault(name, []).append(parent_block)")
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parents:
diff changeset
908 self.outdent()
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parents:
diff changeset
909
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parents:
diff changeset
910 # if this extends statement was in the root level we can take
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parents:
diff changeset
911 # advantage of that information and simplify the generated code
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parents:
diff changeset
912 # in the top level from this point onwards
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parents:
diff changeset
913 if frame.rootlevel:
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parents:
diff changeset
914 self.has_known_extends = True
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parents:
diff changeset
915
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parents:
diff changeset
916 # and now we have one more
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parents:
diff changeset
917 self.extends_so_far += 1
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parents:
diff changeset
918
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diff changeset
919 def visit_Include(self, node, frame):
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diff changeset
920 """Handles includes."""
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diff changeset
921 if node.ignore_missing:
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parents:
diff changeset
922 self.writeline("try:")
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parents:
diff changeset
923 self.indent()
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diff changeset
924
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diff changeset
925 func_name = "get_or_select_template"
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diff changeset
926 if isinstance(node.template, nodes.Const):
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parents:
diff changeset
927 if isinstance(node.template.value, string_types):
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parents:
diff changeset
928 func_name = "get_template"
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parents:
diff changeset
929 elif isinstance(node.template.value, (tuple, list)):
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parents:
diff changeset
930 func_name = "select_template"
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parents:
diff changeset
931 elif isinstance(node.template, (nodes.Tuple, nodes.List)):
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parents:
diff changeset
932 func_name = "select_template"
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parents:
diff changeset
933
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diff changeset
934 self.writeline("template = environment.%s(" % func_name, node)
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parents:
diff changeset
935 self.visit(node.template, frame)
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parents:
diff changeset
936 self.write(", %r)" % self.name)
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diff changeset
937 if node.ignore_missing:
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parents:
diff changeset
938 self.outdent()
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parents:
diff changeset
939 self.writeline("except TemplateNotFound:")
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parents:
diff changeset
940 self.indent()
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parents:
diff changeset
941 self.writeline("pass")
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parents:
diff changeset
942 self.outdent()
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parents:
diff changeset
943 self.writeline("else:")
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parents:
diff changeset
944 self.indent()
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diff changeset
945
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diff changeset
946 skip_event_yield = False
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parents:
diff changeset
947 if node.with_context:
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parents:
diff changeset
948 loop = self.environment.is_async and "async for" or "for"
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parents:
diff changeset
949 self.writeline(
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parents:
diff changeset
950 "%s event in template.root_render_func("
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parents:
diff changeset
951 "template.new_context(context.get_all(), True, "
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parents:
diff changeset
952 "%s)):" % (loop, self.dump_local_context(frame))
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diff changeset
953 )
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954 elif self.environment.is_async:
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parents:
diff changeset
955 self.writeline(
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956 "for event in (await "
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parents:
diff changeset
957 "template._get_default_module_async())"
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parents:
diff changeset
958 "._body_stream:"
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diff changeset
959 )
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960 else:
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961 if supports_yield_from:
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diff changeset
962 self.writeline("yield from template._get_default_module()._body_stream")
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diff changeset
963 skip_event_yield = True
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diff changeset
964 else:
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diff changeset
965 self.writeline(
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diff changeset
966 "for event in template._get_default_module()._body_stream:"
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parents:
diff changeset
967 )
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parents:
diff changeset
968
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diff changeset
969 if not skip_event_yield:
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diff changeset
970 self.indent()
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parents:
diff changeset
971 self.simple_write("event", frame)
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parents:
diff changeset
972 self.outdent()
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parents:
diff changeset
973
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diff changeset
974 if node.ignore_missing:
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parents:
diff changeset
975 self.outdent()
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parents:
diff changeset
976
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diff changeset
977 def visit_Import(self, node, frame):
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parents:
diff changeset
978 """Visit regular imports."""
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diff changeset
979 self.writeline("%s = " % frame.symbols.ref(node.target), node)
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diff changeset
980 if frame.toplevel:
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diff changeset
981 self.write("context.vars[%r] = " % node.target)
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parents:
diff changeset
982 if self.environment.is_async:
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parents:
diff changeset
983 self.write("await ")
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diff changeset
984 self.write("environment.get_template(")
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parents:
diff changeset
985 self.visit(node.template, frame)
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parents:
diff changeset
986 self.write(", %r)." % self.name)
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parents:
diff changeset
987 if node.with_context:
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diff changeset
988 self.write(
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diff changeset
989 "make_module%s(context.get_all(), True, %s)"
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parents:
diff changeset
990 % (
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diff changeset
991 self.environment.is_async and "_async" or "",
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parents:
diff changeset
992 self.dump_local_context(frame),
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parents:
diff changeset
993 )
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diff changeset
994 )
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diff changeset
995 elif self.environment.is_async:
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parents:
diff changeset
996 self.write("_get_default_module_async()")
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parents:
diff changeset
997 else:
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diff changeset
998 self.write("_get_default_module()")
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parents:
diff changeset
999 if frame.toplevel and not node.target.startswith("_"):
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diff changeset
1000 self.writeline("context.exported_vars.discard(%r)" % node.target)
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diff changeset
1001
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diff changeset
1002 def visit_FromImport(self, node, frame):
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parents:
diff changeset
1003 """Visit named imports."""
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diff changeset
1004 self.newline(node)
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diff changeset
1005 self.write(
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diff changeset
1006 "included_template = %senvironment.get_template("
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parents:
diff changeset
1007 % (self.environment.is_async and "await " or "")
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parents:
diff changeset
1008 )
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diff changeset
1009 self.visit(node.template, frame)
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diff changeset
1010 self.write(", %r)." % self.name)
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diff changeset
1011 if node.with_context:
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diff changeset
1012 self.write(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1013 "make_module%s(context.get_all(), True, %s)"
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diff changeset
1014 % (
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diff changeset
1015 self.environment.is_async and "_async" or "",
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diff changeset
1016 self.dump_local_context(frame),
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diff changeset
1017 )
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diff changeset
1018 )
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diff changeset
1019 elif self.environment.is_async:
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parents:
diff changeset
1020 self.write("_get_default_module_async()")
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diff changeset
1021 else:
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diff changeset
1022 self.write("_get_default_module()")
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diff changeset
1023
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diff changeset
1024 var_names = []
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diff changeset
1025 discarded_names = []
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diff changeset
1026 for name in node.names:
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diff changeset
1027 if isinstance(name, tuple):
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diff changeset
1028 name, alias = name
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diff changeset
1029 else:
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diff changeset
1030 alias = name
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diff changeset
1031 self.writeline(
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diff changeset
1032 "%s = getattr(included_template, "
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1033 "%r, missing)" % (frame.symbols.ref(alias), name)
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1034 )
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1035 self.writeline("if %s is missing:" % frame.symbols.ref(alias))
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1036 self.indent()
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1037 self.writeline(
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1038 "%s = undefined(%r %% "
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1039 "included_template.__name__, "
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1040 "name=%r)"
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1041 % (
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1042 frame.symbols.ref(alias),
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1043 "the template %%r (imported on %s) does "
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1044 "not export the requested name %s"
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1045 % (self.position(node), repr(name)),
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1046 name,
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1047 )
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1048 )
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1049 self.outdent()
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1050 if frame.toplevel:
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1051 var_names.append(alias)
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1052 if not alias.startswith("_"):
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1053 discarded_names.append(alias)
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1054
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1055 if var_names:
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1056 if len(var_names) == 1:
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1057 name = var_names[0]
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1058 self.writeline(
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1059 "context.vars[%r] = %s" % (name, frame.symbols.ref(name))
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1060 )
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1061 else:
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1062 self.writeline(
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1063 "context.vars.update({%s})"
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1064 % ", ".join(
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1065 "%r: %s" % (name, frame.symbols.ref(name)) for name in var_names
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1066 )
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1067 )
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1068 if discarded_names:
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1069 if len(discarded_names) == 1:
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1070 self.writeline("context.exported_vars.discard(%r)" % discarded_names[0])
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1071 else:
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1072 self.writeline(
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1073 "context.exported_vars.difference_"
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1074 "update((%s))" % ", ".join(imap(repr, discarded_names))
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1075 )
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1076
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1077 def visit_For(self, node, frame):
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1078 loop_frame = frame.inner()
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1079 test_frame = frame.inner()
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1080 else_frame = frame.inner()
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1081
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1082 # try to figure out if we have an extended loop. An extended loop
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1083 # is necessary if the loop is in recursive mode if the special loop
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1084 # variable is accessed in the body.
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1085 extended_loop = node.recursive or "loop" in find_undeclared(
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1086 node.iter_child_nodes(only=("body",)), ("loop",)
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1087 )
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1088
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1089 loop_ref = None
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1090 if extended_loop:
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1091 loop_ref = loop_frame.symbols.declare_parameter("loop")
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1092
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1093 loop_frame.symbols.analyze_node(node, for_branch="body")
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1094 if node.else_:
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1095 else_frame.symbols.analyze_node(node, for_branch="else")
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1096
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1097 if node.test:
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1098 loop_filter_func = self.temporary_identifier()
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1099 test_frame.symbols.analyze_node(node, for_branch="test")
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1100 self.writeline("%s(fiter):" % self.func(loop_filter_func), node.test)
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1101 self.indent()
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1102 self.enter_frame(test_frame)
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1103 self.writeline(self.environment.is_async and "async for " or "for ")
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1104 self.visit(node.target, loop_frame)
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1105 self.write(" in ")
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1106 self.write(self.environment.is_async and "auto_aiter(fiter)" or "fiter")
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1107 self.write(":")
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1108 self.indent()
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1109 self.writeline("if ", node.test)
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1110 self.visit(node.test, test_frame)
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1111 self.write(":")
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1112 self.indent()
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1113 self.writeline("yield ")
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1114 self.visit(node.target, loop_frame)
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1115 self.outdent(3)
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1116 self.leave_frame(test_frame, with_python_scope=True)
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1117
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1118 # if we don't have an recursive loop we have to find the shadowed
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1119 # variables at that point. Because loops can be nested but the loop
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1120 # variable is a special one we have to enforce aliasing for it.
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1121 if node.recursive:
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1122 self.writeline(
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1123 "%s(reciter, loop_render_func, depth=0):" % self.func("loop"), node
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1124 )
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1125 self.indent()
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1126 self.buffer(loop_frame)
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1127
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1128 # Use the same buffer for the else frame
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1129 else_frame.buffer = loop_frame.buffer
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1130
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1131 # make sure the loop variable is a special one and raise a template
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1132 # assertion error if a loop tries to write to loop
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1133 if extended_loop:
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1134 self.writeline("%s = missing" % loop_ref)
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1135
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1136 for name in node.find_all(nodes.Name):
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1137 if name.ctx == "store" and name.name == "loop":
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1138 self.fail(
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1139 "Can't assign to special loop variable in for-loop target",
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1140 name.lineno,
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1141 )
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1142
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1143 if node.else_:
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1144 iteration_indicator = self.temporary_identifier()
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1145 self.writeline("%s = 1" % iteration_indicator)
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1146
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1147 self.writeline(self.environment.is_async and "async for " or "for ", node)
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1148 self.visit(node.target, loop_frame)
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1149 if extended_loop:
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1150 if self.environment.is_async:
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1151 self.write(", %s in AsyncLoopContext(" % loop_ref)
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1152 else:
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1153 self.write(", %s in LoopContext(" % loop_ref)
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1154 else:
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1155 self.write(" in ")
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1156
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1157 if node.test:
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1158 self.write("%s(" % loop_filter_func)
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parents:
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1159 if node.recursive:
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1160 self.write("reciter")
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1161 else:
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1162 if self.environment.is_async and not extended_loop:
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1163 self.write("auto_aiter(")
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diff changeset
1164 self.visit(node.iter, frame)
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diff changeset
1165 if self.environment.is_async and not extended_loop:
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parents:
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1166 self.write(")")
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parents:
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1167 if node.test:
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1168 self.write(")")
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1169
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1170 if node.recursive:
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1171 self.write(", undefined, loop_render_func, depth):")
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1172 else:
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1173 self.write(extended_loop and ", undefined):" or ":")
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1174
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1175 self.indent()
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1176 self.enter_frame(loop_frame)
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1177
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1178 self.blockvisit(node.body, loop_frame)
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parents:
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1179 if node.else_:
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1180 self.writeline("%s = 0" % iteration_indicator)
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1181 self.outdent()
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1182 self.leave_frame(
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1183 loop_frame, with_python_scope=node.recursive and not node.else_
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1184 )
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1185
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1186 if node.else_:
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parents:
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1187 self.writeline("if %s:" % iteration_indicator)
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diff changeset
1188 self.indent()
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1189 self.enter_frame(else_frame)
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1190 self.blockvisit(node.else_, else_frame)
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1191 self.leave_frame(else_frame)
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1192 self.outdent()
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1193
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1194 # if the node was recursive we have to return the buffer contents
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1195 # and start the iteration code
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1196 if node.recursive:
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1197 self.return_buffer_contents(loop_frame)
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1198 self.outdent()
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1199 self.start_write(frame, node)
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1200 if self.environment.is_async:
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diff changeset
1201 self.write("await ")
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parents:
diff changeset
1202 self.write("loop(")
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parents:
diff changeset
1203 if self.environment.is_async:
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diff changeset
1204 self.write("auto_aiter(")
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parents:
diff changeset
1205 self.visit(node.iter, frame)
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parents:
diff changeset
1206 if self.environment.is_async:
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diff changeset
1207 self.write(")")
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parents:
diff changeset
1208 self.write(", loop)")
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parents:
diff changeset
1209 self.end_write(frame)
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diff changeset
1210
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1211 def visit_If(self, node, frame):
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parents:
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1212 if_frame = frame.soft()
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parents:
diff changeset
1213 self.writeline("if ", node)
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diff changeset
1214 self.visit(node.test, if_frame)
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parents:
diff changeset
1215 self.write(":")
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parents:
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1216 self.indent()
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1217 self.blockvisit(node.body, if_frame)
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diff changeset
1218 self.outdent()
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diff changeset
1219 for elif_ in node.elif_:
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parents:
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1220 self.writeline("elif ", elif_)
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diff changeset
1221 self.visit(elif_.test, if_frame)
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parents:
diff changeset
1222 self.write(":")
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diff changeset
1223 self.indent()
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parents:
diff changeset
1224 self.blockvisit(elif_.body, if_frame)
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diff changeset
1225 self.outdent()
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diff changeset
1226 if node.else_:
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diff changeset
1227 self.writeline("else:")
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diff changeset
1228 self.indent()
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diff changeset
1229 self.blockvisit(node.else_, if_frame)
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diff changeset
1230 self.outdent()
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diff changeset
1231
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1232 def visit_Macro(self, node, frame):
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1233 macro_frame, macro_ref = self.macro_body(node, frame)
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1234 self.newline()
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1235 if frame.toplevel:
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diff changeset
1236 if not node.name.startswith("_"):
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diff changeset
1237 self.write("context.exported_vars.add(%r)" % node.name)
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parents:
diff changeset
1238 self.writeline("context.vars[%r] = " % node.name)
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parents:
diff changeset
1239 self.write("%s = " % frame.symbols.ref(node.name))
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diff changeset
1240 self.macro_def(macro_ref, macro_frame)
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diff changeset
1241
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1242 def visit_CallBlock(self, node, frame):
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parents:
diff changeset
1243 call_frame, macro_ref = self.macro_body(node, frame)
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parents:
diff changeset
1244 self.writeline("caller = ")
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parents:
diff changeset
1245 self.macro_def(macro_ref, call_frame)
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parents:
diff changeset
1246 self.start_write(frame, node)
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parents:
diff changeset
1247 self.visit_Call(node.call, frame, forward_caller=True)
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parents:
diff changeset
1248 self.end_write(frame)
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parents:
diff changeset
1249
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diff changeset
1250 def visit_FilterBlock(self, node, frame):
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parents:
diff changeset
1251 filter_frame = frame.inner()
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parents:
diff changeset
1252 filter_frame.symbols.analyze_node(node)
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parents:
diff changeset
1253 self.enter_frame(filter_frame)
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parents:
diff changeset
1254 self.buffer(filter_frame)
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parents:
diff changeset
1255 self.blockvisit(node.body, filter_frame)
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parents:
diff changeset
1256 self.start_write(frame, node)
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parents:
diff changeset
1257 self.visit_Filter(node.filter, filter_frame)
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parents:
diff changeset
1258 self.end_write(frame)
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parents:
diff changeset
1259 self.leave_frame(filter_frame)
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parents:
diff changeset
1260
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diff changeset
1261 def visit_With(self, node, frame):
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parents:
diff changeset
1262 with_frame = frame.inner()
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parents:
diff changeset
1263 with_frame.symbols.analyze_node(node)
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parents:
diff changeset
1264 self.enter_frame(with_frame)
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parents:
diff changeset
1265 for target, expr in izip(node.targets, node.values):
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parents:
diff changeset
1266 self.newline()
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parents:
diff changeset
1267 self.visit(target, with_frame)
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parents:
diff changeset
1268 self.write(" = ")
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parents:
diff changeset
1269 self.visit(expr, frame)
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parents:
diff changeset
1270 self.blockvisit(node.body, with_frame)
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parents:
diff changeset
1271 self.leave_frame(with_frame)
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parents:
diff changeset
1272
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diff changeset
1273 def visit_ExprStmt(self, node, frame):
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parents:
diff changeset
1274 self.newline(node)
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parents:
diff changeset
1275 self.visit(node.node, frame)
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parents:
diff changeset
1276
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diff changeset
1277 _FinalizeInfo = namedtuple("_FinalizeInfo", ("const", "src"))
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parents:
diff changeset
1278 #: The default finalize function if the environment isn't configured
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parents:
diff changeset
1279 #: with one. Or if the environment has one, this is called on that
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parents:
diff changeset
1280 #: function's output for constants.
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parents:
diff changeset
1281 _default_finalize = text_type
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parents:
diff changeset
1282 _finalize = None
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parents:
diff changeset
1283
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parents:
diff changeset
1284 def _make_finalize(self):
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diff changeset
1285 """Build the finalize function to be used on constants and at
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1286 runtime. Cached so it's only created once for all output nodes.
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diff changeset
1287
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diff changeset
1288 Returns a ``namedtuple`` with the following attributes:
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diff changeset
1289
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diff changeset
1290 ``const``
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diff changeset
1291 A function to finalize constant data at compile time.
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1292
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diff changeset
1293 ``src``
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diff changeset
1294 Source code to output around nodes to be evaluated at
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diff changeset
1295 runtime.
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1296 """
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1297 if self._finalize is not None:
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diff changeset
1298 return self._finalize
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diff changeset
1299
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diff changeset
1300 finalize = default = self._default_finalize
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1301 src = None
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1302
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1303 if self.environment.finalize:
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diff changeset
1304 src = "environment.finalize("
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1305 env_finalize = self.environment.finalize
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1306
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1307 def finalize(value):
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1308 return default(env_finalize(value))
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1309
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1310 if getattr(env_finalize, "contextfunction", False) is True:
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diff changeset
1311 src += "context, "
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diff changeset
1312 finalize = None # noqa: F811
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diff changeset
1313 elif getattr(env_finalize, "evalcontextfunction", False) is True:
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diff changeset
1314 src += "context.eval_ctx, "
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diff changeset
1315 finalize = None
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diff changeset
1316 elif getattr(env_finalize, "environmentfunction", False) is True:
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diff changeset
1317 src += "environment, "
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1318
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diff changeset
1319 def finalize(value):
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1320 return default(env_finalize(self.environment, value))
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1321
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1322 self._finalize = self._FinalizeInfo(finalize, src)
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diff changeset
1323 return self._finalize
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diff changeset
1324
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diff changeset
1325 def _output_const_repr(self, group):
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diff changeset
1326 """Given a group of constant values converted from ``Output``
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diff changeset
1327 child nodes, produce a string to write to the template module
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diff changeset
1328 source.
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1329 """
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1330 return repr(concat(group))
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diff changeset
1331
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1332 def _output_child_to_const(self, node, frame, finalize):
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diff changeset
1333 """Try to optimize a child of an ``Output`` node by trying to
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diff changeset
1334 convert it to constant, finalized data at compile time.
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1335
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1336 If :exc:`Impossible` is raised, the node is not constant and
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1337 will be evaluated at runtime. Any other exception will also be
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1338 evaluated at runtime for easier debugging.
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1339 """
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1340 const = node.as_const(frame.eval_ctx)
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1341
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1342 if frame.eval_ctx.autoescape:
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diff changeset
1343 const = escape(const)
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1344
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1345 # Template data doesn't go through finalize.
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1346 if isinstance(node, nodes.TemplateData):
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1347 return text_type(const)
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diff changeset
1348
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1349 return finalize.const(const)
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diff changeset
1350
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1351 def _output_child_pre(self, node, frame, finalize):
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diff changeset
1352 """Output extra source code before visiting a child of an
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diff changeset
1353 ``Output`` node.
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diff changeset
1354 """
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1355 if frame.eval_ctx.volatile:
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diff changeset
1356 self.write("(escape if context.eval_ctx.autoescape else to_string)(")
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diff changeset
1357 elif frame.eval_ctx.autoescape:
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diff changeset
1358 self.write("escape(")
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diff changeset
1359 else:
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diff changeset
1360 self.write("to_string(")
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diff changeset
1361
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1362 if finalize.src is not None:
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diff changeset
1363 self.write(finalize.src)
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diff changeset
1364
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1365 def _output_child_post(self, node, frame, finalize):
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diff changeset
1366 """Output extra source code after visiting a child of an
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diff changeset
1367 ``Output`` node.
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diff changeset
1368 """
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diff changeset
1369 self.write(")")
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diff changeset
1370
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1371 if finalize.src is not None:
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diff changeset
1372 self.write(")")
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diff changeset
1373
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1374 def visit_Output(self, node, frame):
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parents:
diff changeset
1375 # If an extends is active, don't render outside a block.
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diff changeset
1376 if frame.require_output_check:
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parents:
diff changeset
1377 # A top-level extends is known to exist at compile time.
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diff changeset
1378 if self.has_known_extends:
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diff changeset
1379 return
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diff changeset
1380
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diff changeset
1381 self.writeline("if parent_template is None:")
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diff changeset
1382 self.indent()
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diff changeset
1383
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diff changeset
1384 finalize = self._make_finalize()
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diff changeset
1385 body = []
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diff changeset
1386
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diff changeset
1387 # Evaluate constants at compile time if possible. Each item in
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diff changeset
1388 # body will be either a list of static data or a node to be
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diff changeset
1389 # evaluated at runtime.
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diff changeset
1390 for child in node.nodes:
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diff changeset
1391 try:
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diff changeset
1392 if not (
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diff changeset
1393 # If the finalize function requires runtime context,
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diff changeset
1394 # constants can't be evaluated at compile time.
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diff changeset
1395 finalize.const
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diff changeset
1396 # Unless it's basic template data that won't be
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parents:
diff changeset
1397 # finalized anyway.
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diff changeset
1398 or isinstance(child, nodes.TemplateData)
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diff changeset
1399 ):
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diff changeset
1400 raise nodes.Impossible()
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diff changeset
1401
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diff changeset
1402 const = self._output_child_to_const(child, frame, finalize)
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1403 except (nodes.Impossible, Exception):
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diff changeset
1404 # The node was not constant and needs to be evaluated at
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diff changeset
1405 # runtime. Or another error was raised, which is easier
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parents:
diff changeset
1406 # to debug at runtime.
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diff changeset
1407 body.append(child)
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diff changeset
1408 continue
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diff changeset
1409
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1410 if body and isinstance(body[-1], list):
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diff changeset
1411 body[-1].append(const)
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diff changeset
1412 else:
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diff changeset
1413 body.append([const])
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parents:
diff changeset
1414
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parents:
diff changeset
1415 if frame.buffer is not None:
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parents:
diff changeset
1416 if len(body) == 1:
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parents:
diff changeset
1417 self.writeline("%s.append(" % frame.buffer)
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parents:
diff changeset
1418 else:
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parents:
diff changeset
1419 self.writeline("%s.extend((" % frame.buffer)
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parents:
diff changeset
1420
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parents:
diff changeset
1421 self.indent()
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parents:
diff changeset
1422
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parents:
diff changeset
1423 for item in body:
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parents:
diff changeset
1424 if isinstance(item, list):
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guerler
parents:
diff changeset
1425 # A group of constant data to join and output.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1426 val = self._output_const_repr(item)
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parents:
diff changeset
1427
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parents:
diff changeset
1428 if frame.buffer is None:
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guerler
parents:
diff changeset
1429 self.writeline("yield " + val)
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parents:
diff changeset
1430 else:
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parents:
diff changeset
1431 self.writeline(val + ",")
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parents:
diff changeset
1432 else:
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parents:
diff changeset
1433 if frame.buffer is None:
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parents:
diff changeset
1434 self.writeline("yield ", item)
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parents:
diff changeset
1435 else:
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parents:
diff changeset
1436 self.newline(item)
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parents:
diff changeset
1437
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parents:
diff changeset
1438 # A node to be evaluated at runtime.
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guerler
parents:
diff changeset
1439 self._output_child_pre(item, frame, finalize)
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parents:
diff changeset
1440 self.visit(item, frame)
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parents:
diff changeset
1441 self._output_child_post(item, frame, finalize)
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parents:
diff changeset
1442
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parents:
diff changeset
1443 if frame.buffer is not None:
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parents:
diff changeset
1444 self.write(",")
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parents:
diff changeset
1445
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parents:
diff changeset
1446 if frame.buffer is not None:
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parents:
diff changeset
1447 self.outdent()
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parents:
diff changeset
1448 self.writeline(")" if len(body) == 1 else "))")
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parents:
diff changeset
1449
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parents:
diff changeset
1450 if frame.require_output_check:
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parents:
diff changeset
1451 self.outdent()
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parents:
diff changeset
1452
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parents:
diff changeset
1453 def visit_Assign(self, node, frame):
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parents:
diff changeset
1454 self.push_assign_tracking()
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parents:
diff changeset
1455 self.newline(node)
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parents:
diff changeset
1456 self.visit(node.target, frame)
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parents:
diff changeset
1457 self.write(" = ")
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parents:
diff changeset
1458 self.visit(node.node, frame)
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parents:
diff changeset
1459 self.pop_assign_tracking(frame)
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parents:
diff changeset
1460
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parents:
diff changeset
1461 def visit_AssignBlock(self, node, frame):
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parents:
diff changeset
1462 self.push_assign_tracking()
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parents:
diff changeset
1463 block_frame = frame.inner()
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guerler
parents:
diff changeset
1464 # This is a special case. Since a set block always captures we
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guerler
parents:
diff changeset
1465 # will disable output checks. This way one can use set blocks
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parents:
diff changeset
1466 # toplevel even in extended templates.
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parents:
diff changeset
1467 block_frame.require_output_check = False
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guerler
parents:
diff changeset
1468 block_frame.symbols.analyze_node(node)
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parents:
diff changeset
1469 self.enter_frame(block_frame)
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parents:
diff changeset
1470 self.buffer(block_frame)
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parents:
diff changeset
1471 self.blockvisit(node.body, block_frame)
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parents:
diff changeset
1472 self.newline(node)
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parents:
diff changeset
1473 self.visit(node.target, frame)
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parents:
diff changeset
1474 self.write(" = (Markup if context.eval_ctx.autoescape else identity)(")
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parents:
diff changeset
1475 if node.filter is not None:
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parents:
diff changeset
1476 self.visit_Filter(node.filter, block_frame)
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parents:
diff changeset
1477 else:
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diff changeset
1478 self.write("concat(%s)" % block_frame.buffer)
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parents:
diff changeset
1479 self.write(")")
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parents:
diff changeset
1480 self.pop_assign_tracking(frame)
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parents:
diff changeset
1481 self.leave_frame(block_frame)
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parents:
diff changeset
1482
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diff changeset
1483 # -- Expression Visitors
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diff changeset
1484
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diff changeset
1485 def visit_Name(self, node, frame):
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parents:
diff changeset
1486 if node.ctx == "store" and frame.toplevel:
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parents:
diff changeset
1487 if self._assign_stack:
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parents:
diff changeset
1488 self._assign_stack[-1].add(node.name)
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parents:
diff changeset
1489 ref = frame.symbols.ref(node.name)
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parents:
diff changeset
1490
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diff changeset
1491 # If we are looking up a variable we might have to deal with the
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parents:
diff changeset
1492 # case where it's undefined. We can skip that case if the load
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parents:
diff changeset
1493 # instruction indicates a parameter which are always defined.
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parents:
diff changeset
1494 if node.ctx == "load":
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parents:
diff changeset
1495 load = frame.symbols.find_load(ref)
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parents:
diff changeset
1496 if not (
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parents:
diff changeset
1497 load is not None
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parents:
diff changeset
1498 and load[0] == VAR_LOAD_PARAMETER
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parents:
diff changeset
1499 and not self.parameter_is_undeclared(ref)
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parents:
diff changeset
1500 ):
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parents:
diff changeset
1501 self.write(
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parents:
diff changeset
1502 "(undefined(name=%r) if %s is missing else %s)"
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parents:
diff changeset
1503 % (node.name, ref, ref)
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parents:
diff changeset
1504 )
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parents:
diff changeset
1505 return
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parents:
diff changeset
1506
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parents:
diff changeset
1507 self.write(ref)
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parents:
diff changeset
1508
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parents:
diff changeset
1509 def visit_NSRef(self, node, frame):
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guerler
parents:
diff changeset
1510 # NSRefs can only be used to store values; since they use the normal
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parents:
diff changeset
1511 # `foo.bar` notation they will be parsed as a normal attribute access
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guerler
parents:
diff changeset
1512 # when used anywhere but in a `set` context
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parents:
diff changeset
1513 ref = frame.symbols.ref(node.name)
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parents:
diff changeset
1514 self.writeline("if not isinstance(%s, Namespace):" % ref)
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parents:
diff changeset
1515 self.indent()
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parents:
diff changeset
1516 self.writeline(
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parents:
diff changeset
1517 "raise TemplateRuntimeError(%r)"
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parents:
diff changeset
1518 % "cannot assign attribute on non-namespace object"
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parents:
diff changeset
1519 )
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parents:
diff changeset
1520 self.outdent()
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parents:
diff changeset
1521 self.writeline("%s[%r]" % (ref, node.attr))
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parents:
diff changeset
1522
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parents:
diff changeset
1523 def visit_Const(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1524 val = node.as_const(frame.eval_ctx)
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parents:
diff changeset
1525 if isinstance(val, float):
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parents:
diff changeset
1526 self.write(str(val))
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parents:
diff changeset
1527 else:
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parents:
diff changeset
1528 self.write(repr(val))
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parents:
diff changeset
1529
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parents:
diff changeset
1530 def visit_TemplateData(self, node, frame):
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guerler
parents:
diff changeset
1531 try:
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parents:
diff changeset
1532 self.write(repr(node.as_const(frame.eval_ctx)))
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guerler
parents:
diff changeset
1533 except nodes.Impossible:
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parents:
diff changeset
1534 self.write(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1535 "(Markup if context.eval_ctx.autoescape else identity)(%r)" % node.data
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parents:
diff changeset
1536 )
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parents:
diff changeset
1537
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parents:
diff changeset
1538 def visit_Tuple(self, node, frame):
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guerler
parents:
diff changeset
1539 self.write("(")
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parents:
diff changeset
1540 idx = -1
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parents:
diff changeset
1541 for idx, item in enumerate(node.items):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1542 if idx:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1543 self.write(", ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1544 self.visit(item, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1545 self.write(idx == 0 and ",)" or ")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1546
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1547 def visit_List(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1548 self.write("[")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1549 for idx, item in enumerate(node.items):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1550 if idx:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1551 self.write(", ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1552 self.visit(item, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1553 self.write("]")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1554
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1555 def visit_Dict(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1556 self.write("{")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1557 for idx, item in enumerate(node.items):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1558 if idx:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1559 self.write(", ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1560 self.visit(item.key, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1561 self.write(": ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1562 self.visit(item.value, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1563 self.write("}")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1564
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1565 def binop(operator, interceptable=True): # noqa: B902
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1566 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1567 def visitor(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1568 if (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1569 self.environment.sandboxed
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1570 and operator in self.environment.intercepted_binops
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1571 ):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1572 self.write("environment.call_binop(context, %r, " % operator)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1573 self.visit(node.left, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1574 self.write(", ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1575 self.visit(node.right, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1576 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1577 self.write("(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1578 self.visit(node.left, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1579 self.write(" %s " % operator)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1580 self.visit(node.right, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1581 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1582
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1583 return visitor
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1584
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1585 def uaop(operator, interceptable=True): # noqa: B902
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1586 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1587 def visitor(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1588 if (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1589 self.environment.sandboxed
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1590 and operator in self.environment.intercepted_unops
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1591 ):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1592 self.write("environment.call_unop(context, %r, " % operator)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1593 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1594 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1595 self.write("(" + operator)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1596 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1597 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1598
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1599 return visitor
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1600
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1601 visit_Add = binop("+")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1602 visit_Sub = binop("-")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1603 visit_Mul = binop("*")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1604 visit_Div = binop("/")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1605 visit_FloorDiv = binop("//")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1606 visit_Pow = binop("**")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1607 visit_Mod = binop("%")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1608 visit_And = binop("and", interceptable=False)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1609 visit_Or = binop("or", interceptable=False)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1610 visit_Pos = uaop("+")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1611 visit_Neg = uaop("-")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1612 visit_Not = uaop("not ", interceptable=False)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1613 del binop, uaop
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1614
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1615 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1616 def visit_Concat(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1617 if frame.eval_ctx.volatile:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1618 func_name = "(context.eval_ctx.volatile and markup_join or unicode_join)"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1619 elif frame.eval_ctx.autoescape:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1620 func_name = "markup_join"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1621 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1622 func_name = "unicode_join"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1623 self.write("%s((" % func_name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1624 for arg in node.nodes:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1625 self.visit(arg, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1626 self.write(", ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1627 self.write("))")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1628
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1629 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1630 def visit_Compare(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1631 self.write("(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1632 self.visit(node.expr, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1633 for op in node.ops:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1634 self.visit(op, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1635 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1636
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1637 def visit_Operand(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1638 self.write(" %s " % operators[node.op])
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1639 self.visit(node.expr, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1640
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1641 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1642 def visit_Getattr(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1643 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1644 self.write("(await auto_await(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1645
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1646 self.write("environment.getattr(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1647 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1648 self.write(", %r)" % node.attr)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1649
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1650 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1651 self.write("))")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1652
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1653 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1654 def visit_Getitem(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1655 # slices bypass the environment getitem method.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1656 if isinstance(node.arg, nodes.Slice):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1657 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1658 self.write("[")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1659 self.visit(node.arg, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1660 self.write("]")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1661 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1662 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1663 self.write("(await auto_await(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1664
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1665 self.write("environment.getitem(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1666 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1667 self.write(", ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1668 self.visit(node.arg, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1669 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1670
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1671 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1672 self.write("))")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1673
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1674 def visit_Slice(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1675 if node.start is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1676 self.visit(node.start, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1677 self.write(":")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1678 if node.stop is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1679 self.visit(node.stop, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1680 if node.step is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1681 self.write(":")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1682 self.visit(node.step, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1683
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1684 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1685 def visit_Filter(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1686 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1687 self.write("await auto_await(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1688 self.write(self.filters[node.name] + "(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1689 func = self.environment.filters.get(node.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1690 if func is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1691 self.fail("no filter named %r" % node.name, node.lineno)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1692 if getattr(func, "contextfilter", False) is True:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1693 self.write("context, ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1694 elif getattr(func, "evalcontextfilter", False) is True:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1695 self.write("context.eval_ctx, ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1696 elif getattr(func, "environmentfilter", False) is True:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1697 self.write("environment, ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1698
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1699 # if the filter node is None we are inside a filter block
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1700 # and want to write to the current buffer
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1701 if node.node is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1702 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1703 elif frame.eval_ctx.volatile:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1704 self.write(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1705 "(context.eval_ctx.autoescape and"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1706 " Markup(concat(%s)) or concat(%s))" % (frame.buffer, frame.buffer)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1707 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1708 elif frame.eval_ctx.autoescape:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1709 self.write("Markup(concat(%s))" % frame.buffer)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1710 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1711 self.write("concat(%s)" % frame.buffer)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1712 self.signature(node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1713 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1714 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1715 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1716
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guerler
parents:
diff changeset
1717 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1718 def visit_Test(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1719 self.write(self.tests[node.name] + "(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1720 if node.name not in self.environment.tests:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1721 self.fail("no test named %r" % node.name, node.lineno)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1722 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1723 self.signature(node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1724 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1725
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guerler
parents:
diff changeset
1726 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1727 def visit_CondExpr(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1728 def write_expr2():
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1729 if node.expr2 is not None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1730 return self.visit(node.expr2, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1731 self.write(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1732 "cond_expr_undefined(%r)"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1733 % (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1734 "the inline if-"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1735 "expression on %s evaluated to false and "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1736 "no else section was defined." % self.position(node)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1737 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1738 )
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1739
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guerler
parents:
diff changeset
1740 self.write("(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1741 self.visit(node.expr1, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1742 self.write(" if ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1743 self.visit(node.test, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1744 self.write(" else ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1745 write_expr2()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1746 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1747
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1748 @optimizeconst
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1749 def visit_Call(self, node, frame, forward_caller=False):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1750 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1751 self.write("await auto_await(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1752 if self.environment.sandboxed:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1753 self.write("environment.call(context, ")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1754 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1755 self.write("context.call(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1756 self.visit(node.node, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1757 extra_kwargs = forward_caller and {"caller": "caller"} or None
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1758 self.signature(node, frame, extra_kwargs)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1759 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1760 if self.environment.is_async:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1761 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1762
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1763 def visit_Keyword(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1764 self.write(node.key + "=")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1765 self.visit(node.value, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1766
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1767 # -- Unused nodes for extensions
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1768
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1769 def visit_MarkSafe(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1770 self.write("Markup(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1771 self.visit(node.expr, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1772 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1773
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1774 def visit_MarkSafeIfAutoescape(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1775 self.write("(context.eval_ctx.autoescape and Markup or identity)(")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1776 self.visit(node.expr, frame)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1777 self.write(")")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1778
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1779 def visit_EnvironmentAttribute(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1780 self.write("environment." + node.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1781
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1782 def visit_ExtensionAttribute(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1783 self.write("environment.extensions[%r].%s" % (node.identifier, node.name))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1784
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1785 def visit_ImportedName(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1786 self.write(self.import_aliases[node.importname])
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1787
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1788 def visit_InternalName(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1789 self.write(node.name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1790
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1791 def visit_ContextReference(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1792 self.write("context")
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1793
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1794 def visit_DerivedContextReference(self, node, frame):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1795 self.write(self.derive_context(frame))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
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1796
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1797 def visit_Continue(self, node, frame):
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1798 self.writeline("continue", node)
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1799
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1800 def visit_Break(self, node, frame):
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1801 self.writeline("break", node)
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1802
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1803 def visit_Scope(self, node, frame):
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1804 scope_frame = frame.inner()
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1805 scope_frame.symbols.analyze_node(node)
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1806 self.enter_frame(scope_frame)
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1807 self.blockvisit(node.body, scope_frame)
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1808 self.leave_frame(scope_frame)
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1809
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1810 def visit_OverlayScope(self, node, frame):
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1811 ctx = self.temporary_identifier()
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1812 self.writeline("%s = %s" % (ctx, self.derive_context(frame)))
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1813 self.writeline("%s.vars = " % ctx)
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1814 self.visit(node.context, frame)
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1815 self.push_context_reference(ctx)
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1816
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1817 scope_frame = frame.inner(isolated=True)
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1818 scope_frame.symbols.analyze_node(node)
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1819 self.enter_frame(scope_frame)
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1820 self.blockvisit(node.body, scope_frame)
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1821 self.leave_frame(scope_frame)
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1822 self.pop_context_reference()
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1823
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1824 def visit_EvalContextModifier(self, node, frame):
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1825 for keyword in node.options:
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1826 self.writeline("context.eval_ctx.%s = " % keyword.key)
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1827 self.visit(keyword.value, frame)
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1828 try:
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1829 val = keyword.value.as_const(frame.eval_ctx)
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1830 except nodes.Impossible:
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1831 frame.eval_ctx.volatile = True
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1832 else:
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1833 setattr(frame.eval_ctx, keyword.key, val)
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1834
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1835 def visit_ScopedEvalContextModifier(self, node, frame):
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1836 old_ctx_name = self.temporary_identifier()
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1837 saved_ctx = frame.eval_ctx.save()
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1838 self.writeline("%s = context.eval_ctx.save()" % old_ctx_name)
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1839 self.visit_EvalContextModifier(node, frame)
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1840 for child in node.body:
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1841 self.visit(child, frame)
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1842 frame.eval_ctx.revert(saved_ctx)
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1843 self.writeline("context.eval_ctx.revert(%s)" % old_ctx_name)