Remove closure_linter from Chrome

third_party/closure_linter/closure_linter/javascriptstatetracker.py

-#!/usr/bin/env python
-# Copyright 2008 The Closure Linter Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS-IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""Parser for JavaScript files."""
-
-
-
-from closure_linter import javascripttokens
-from closure_linter import statetracker
-from closure_linter import tokenutil
-
-# Shorthand
-Type = javascripttokens.JavaScriptTokenType
-
-
-class JsDocFlag(statetracker.DocFlag):
-  """Javascript doc flag object.
-
-  Attribute:
-    flag_type: param, return, define, type, etc.
-    flag_token: The flag token.
-    type_start_token: The first token specifying the flag JS type,
-      including braces.
-    type_end_token: The last token specifying the flag JS type,
-      including braces.
-    type: The type spec string.
-    jstype: The type spec, a TypeAnnotation instance.
-    name_token: The token specifying the flag name.
-    name: The flag name
-    description_start_token: The first token in the description.
-    description_end_token: The end token in the description.
-    description: The description.
-  """
-
-  # Please keep these lists alphabetized.
-
-  # Some projects use the following extensions to JsDoc.
-  # TODO(robbyw): determine which of these, if any, should be illegal.
-  EXTENDED_DOC = frozenset([
-      'class', 'code', 'desc', 'final', 'hidden', 'inheritDoc', 'link',
-      'meaning', 'provideGoog', 'throws'])
-
-  LEGAL_DOC = EXTENDED_DOC | statetracker.DocFlag.LEGAL_DOC
-
-
-class JavaScriptStateTracker(statetracker.StateTracker):
-  """JavaScript state tracker.
-
-  Inherits from the core EcmaScript StateTracker adding extra state tracking
-  functionality needed for JavaScript.
-  """
-
-  def __init__(self):
-    """Initializes a JavaScript token stream state tracker."""
-    statetracker.StateTracker.__init__(self, JsDocFlag)
-
-  def Reset(self):
-    self._scope_depth = 0
-    self._block_stack = []
-    super(JavaScriptStateTracker, self).Reset()
-
-  def InTopLevel(self):
-    """Compute whether we are at the top level in the class.
-
-    This function call is language specific.  In some languages like
-    JavaScript, a function is top level if it is not inside any parenthesis.
-    In languages such as ActionScript, a function is top level if it is directly
-    within a class.
-
-    Returns:
-      Whether we are at the top level in the class.
-    """
-    return self._scope_depth == self.ParenthesesDepth()
-
-  def InFunction(self):
-    """Returns true if the current token is within a function.
-
-    This js-specific override ignores goog.scope functions.
-
-    Returns:
-      True if the current token is within a function.
-    """
-    return self._scope_depth != self.FunctionDepth()
-
-  def InNonScopeBlock(self):
-    """Compute whether we are nested within a non-goog.scope block.
-
-    Returns:
-      True if the token is not enclosed in a block that does not originate from
-      a goog.scope statement. False otherwise.
-    """
-    return self._scope_depth != self.BlockDepth()
-
-  def GetBlockType(self, token):
-    """Determine the block type given a START_BLOCK token.
-
-    Code blocks come after parameters, keywords  like else, and closing parens.
-
-    Args:
-      token: The current token. Can be assumed to be type START_BLOCK
-    Returns:
-      Code block type for current token.
-    """
-    last_code = tokenutil.SearchExcept(token, Type.NON_CODE_TYPES, reverse=True)
-    if last_code.type in (Type.END_PARAMETERS, Type.END_PAREN,
-                          Type.KEYWORD) and not last_code.IsKeyword('return'):
-      return self.CODE
-    else:
-      return self.OBJECT_LITERAL
-
-  def GetCurrentBlockStart(self):
-    """Gets the start token of current block.
-
-    Returns:
-      Starting token of current block. None if not in block.
-    """
-    if self._block_stack:
-      return self._block_stack[-1]
-    else:
-      return None
-
-  def HandleToken(self, token, last_non_space_token):
-    """Handles the given token and updates state.
-
-    Args:
-      token: The token to handle.
-      last_non_space_token: The last non space token encountered
-    """
-    if token.type == Type.START_BLOCK:
-      self._block_stack.append(token)
-    if token.type == Type.IDENTIFIER and token.string == 'goog.scope':
-      self._scope_depth += 1
-    if token.type == Type.END_BLOCK:
-      start_token = self._block_stack.pop()
-      if tokenutil.GoogScopeOrNoneFromStartBlock(start_token):
-        self._scope_depth -= 1
-    super(JavaScriptStateTracker, self).HandleToken(token,
-                                                    last_non_space_token)