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author | James Taylor <user234683@users.noreply.github.com> | 2019-09-06 16:31:13 -0700 |
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committer | James Taylor <user234683@users.noreply.github.com> | 2019-09-06 16:31:13 -0700 |
commit | 3d57e14df7ba5f14a634295caf3b2e60da50bfe2 (patch) | |
tree | 4903bcb79a49ad714a1a9129765b9545405c9978 /python/jinja2/optimizer.py | |
parent | ac32b24b2a011292b704a3f27e8fd08a7ae9424b (diff) | |
download | yt-local-3d57e14df7ba5f14a634295caf3b2e60da50bfe2.tar.lz yt-local-3d57e14df7ba5f14a634295caf3b2e60da50bfe2.tar.xz yt-local-3d57e14df7ba5f14a634295caf3b2e60da50bfe2.zip |
Remove windows python distribution from repo and add requirements.txt
Diffstat (limited to 'python/jinja2/optimizer.py')
-rw-r--r-- | python/jinja2/optimizer.py | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/python/jinja2/optimizer.py b/python/jinja2/optimizer.py deleted file mode 100644 index 65ab3ce..0000000 --- a/python/jinja2/optimizer.py +++ /dev/null @@ -1,49 +0,0 @@ -# -*- coding: utf-8 -*- -""" - jinja2.optimizer - ~~~~~~~~~~~~~~~~ - - The jinja optimizer is currently trying to constant fold a few expressions - and modify the AST in place so that it should be easier to evaluate it. - - Because the AST does not contain all the scoping information and the - compiler has to find that out, we cannot do all the optimizations we - want. For example loop unrolling doesn't work because unrolled loops would - have a different scoping. - - The solution would be a second syntax tree that has the scoping rules stored. - - :copyright: (c) 2017 by the Jinja Team. - :license: BSD. -""" -from jinja2 import nodes -from jinja2.visitor import NodeTransformer - - -def optimize(node, environment): - """The context hint can be used to perform an static optimization - based on the context given.""" - optimizer = Optimizer(environment) - return optimizer.visit(node) - - -class Optimizer(NodeTransformer): - - def __init__(self, environment): - self.environment = environment - - def fold(self, node, eval_ctx=None): - """Do constant folding.""" - node = self.generic_visit(node) - try: - return nodes.Const.from_untrusted(node.as_const(eval_ctx), - lineno=node.lineno, - environment=self.environment) - except nodes.Impossible: - return node - - visit_Add = visit_Sub = visit_Mul = visit_Div = visit_FloorDiv = \ - visit_Pow = visit_Mod = visit_And = visit_Or = visit_Pos = visit_Neg = \ - visit_Not = visit_Compare = visit_Getitem = visit_Getattr = visit_Call = \ - visit_Filter = visit_Test = visit_CondExpr = fold - del fold |