From 7fc24c10cd3dad19a69392398671a78abecd71d1 Mon Sep 17 00:00:00 2001 From: Walter Purcaro Date: Fri, 3 Oct 2014 21:28:28 +0200 Subject: Remove lib --- pyload/lib/jinja2/meta.py | 103 ---------------------------------------------- 1 file changed, 103 deletions(-) delete mode 100644 pyload/lib/jinja2/meta.py (limited to 'pyload/lib/jinja2/meta.py') diff --git a/pyload/lib/jinja2/meta.py b/pyload/lib/jinja2/meta.py deleted file mode 100644 index 3110cff60..000000000 --- a/pyload/lib/jinja2/meta.py +++ /dev/null @@ -1,103 +0,0 @@ -# -*- coding: utf-8 -*- -""" - jinja2.meta - ~~~~~~~~~~~ - - This module implements various functions that exposes information about - templates that might be interesting for various kinds of applications. - - :copyright: (c) 2010 by the Jinja Team, see AUTHORS for more details. - :license: BSD, see LICENSE for more details. -""" -from jinja2 import nodes -from jinja2.compiler import CodeGenerator -from jinja2._compat import string_types - - -class TrackingCodeGenerator(CodeGenerator): - """We abuse the code generator for introspection.""" - - def __init__(self, environment): - CodeGenerator.__init__(self, environment, '', - '') - self.undeclared_identifiers = set() - - def write(self, x): - """Don't write.""" - - def pull_locals(self, frame): - """Remember all undeclared identifiers.""" - self.undeclared_identifiers.update(frame.identifiers.undeclared) - - -def find_undeclared_variables(ast): - """Returns a set of all variables in the AST that will be looked up from - the context at runtime. Because at compile time it's not known which - variables will be used depending on the path the execution takes at - runtime, all variables are returned. - - >>> from jinja2 import Environment, meta - >>> env = Environment() - >>> ast = env.parse('{% set foo = 42 %}{{ bar + foo }}') - >>> meta.find_undeclared_variables(ast) - set(['bar']) - - .. admonition:: Implementation - - Internally the code generator is used for finding undeclared variables. - This is good to know because the code generator might raise a - :exc:`TemplateAssertionError` during compilation and as a matter of - fact this function can currently raise that exception as well. - """ - codegen = TrackingCodeGenerator(ast.environment) - codegen.visit(ast) - return codegen.undeclared_identifiers - - -def find_referenced_templates(ast): - """Finds all the referenced templates from the AST. This will return an - iterator over all the hardcoded template extensions, inclusions and - imports. If dynamic inheritance or inclusion is used, `None` will be - yielded. - - >>> from jinja2 import Environment, meta - >>> env = Environment() - >>> ast = env.parse('{% extends "layout.html" %}{% include helper %}') - >>> list(meta.find_referenced_templates(ast)) - ['layout.html', None] - - This function is useful for dependency tracking. For example if you want - to rebuild parts of the website after a layout template has changed. - """ - for node in ast.find_all((nodes.Extends, nodes.FromImport, nodes.Import, - nodes.Include)): - if not isinstance(node.template, nodes.Const): - # a tuple with some non consts in there - if isinstance(node.template, (nodes.Tuple, nodes.List)): - for template_name in node.template.items: - # something const, only yield the strings and ignore - # non-string consts that really just make no sense - if isinstance(template_name, nodes.Const): - if isinstance(template_name.value, string_types): - yield template_name.value - # something dynamic in there - else: - yield None - # something dynamic we don't know about here - else: - yield None - continue - # constant is a basestring, direct template name - if isinstance(node.template.value, string_types): - yield node.template.value - # a tuple or list (latter *should* not happen) made of consts, - # yield the consts that are strings. We could warn here for - # non string values - elif isinstance(node, nodes.Include) and \ - isinstance(node.template.value, (tuple, list)): - for template_name in node.template.value: - if isinstance(template_name, string_types): - yield template_name - # something else we don't care about, we could warn here - else: - yield None -- cgit v1.2.3