Remove //tools/idl_parser.

tools/idl_parser/idl_ppapi_parser.py

-#!/usr/bin/env python
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-""" Parser for PPAPI IDL """
-
-#
-# IDL Parser
-#
-# The parser is uses the PLY yacc library to build a set of parsing rules based
-# on WebIDL.
-#
-# WebIDL, and WebIDL grammar can be found at:
-#   http://heycam.github.io/webidl/
-# PLY can be found at:
-#   http://www.dabeaz.com/ply/
-#
-# The parser generates a tree by recursively matching sets of items against
-# defined patterns.  When a match is made, that set of items is reduced
-# to a new item.   The new item can provide a match for parent patterns.
-# In this way an AST is built (reduced) depth first.
-#
-
-#
-# Disable check for line length and Member as Function due to how grammar rules
-# are defined with PLY
-#
-# pylint: disable=R0201
-# pylint: disable=C0301
-
-import sys
-
-from idl_ppapi_lexer import IDLPPAPILexer
-from idl_parser import IDLParser, ListFromConcat, ParseFile
-from idl_node import IDLNode
-
-class IDLPPAPIParser(IDLParser):
-#
-# We force all input files to start with two comments.  The first comment is a
-# Copyright notice followed by a file comment and finally by file level
-# productions.
-#
-  # [0] Insert a TOP definition for Copyright and Comments
-  def p_Top(self, p):
-    """Top : COMMENT COMMENT Definitions"""
-    Copyright = self.BuildComment('Copyright', p, 1)
-    Filedoc = self.BuildComment('Comment', p, 2)
-    p[0] = ListFromConcat(Copyright, Filedoc, p[3])
-
-#
-#The parser is based on the WebIDL standard.  See:
-# http://heycam.github.io/webidl/#idl-grammar
-#
-  # [1]
-  def p_Definitions(self, p):
-    """Definitions : ExtendedAttributeList Definition Definitions
-           | """
-    if len(p) > 1:
-      p[2].AddChildren(p[1])
-      p[0] = ListFromConcat(p[2], p[3])
-
-      # [2] Add INLINE definition
-  def p_Definition(self, p):
-    """Definition : CallbackOrInterface
-                  | Struct
-                  | Partial
-                  | Dictionary
-                  | Exception
-                  | Enum
-                  | Typedef
-                  | ImplementsStatement
-                  | Label
-                  | Inline"""
-    p[0] = p[1]
-
-  def p_Inline(self, p):
-    """Inline : INLINE"""
-    words = p[1].split()
-    name = self.BuildAttribute('NAME', words[1])
-    lines = p[1].split('\n')
-    value = self.BuildAttribute('VALUE', '\n'.join(lines[1:-1]) + '\n')
-    children = ListFromConcat(name, value)
-    p[0] = self.BuildProduction('Inline', p, 1, children)
-
-#
-# Label
-#
-# A label is a special kind of enumeration which allows us to go from a
-# set of version numbrs to releases
-#
-  def p_Label(self, p):
-    """Label : LABEL identifier '{' LabelList '}' ';'"""
-    p[0] = self.BuildNamed('Label', p, 2, p[4])
-
-  def p_LabelList(self, p):
-    """LabelList : identifier '=' float LabelCont"""
-    val  = self.BuildAttribute('VALUE', p[3])
-    label = self.BuildNamed('LabelItem', p, 1, val)
-    p[0] = ListFromConcat(label, p[4])
-
-  def p_LabelCont(self, p):
-    """LabelCont : ',' LabelList
-                 |"""
-    if len(p) > 1:
-      p[0] = p[2]
-
-  def p_LabelContError(self, p):
-    """LabelCont : error LabelCont"""
-    p[0] = p[2]
-
-  # [5.1] Add "struct" style interface
-  def p_Struct(self, p):
-    """Struct : STRUCT identifier Inheritance '{' StructMembers '}' ';'"""
-    p[0] = self.BuildNamed('Struct', p, 2, ListFromConcat(p[3], p[5]))
-
-  def p_StructMembers(self, p):
-    """StructMembers : StructMember StructMembers
-                     |"""
-    if len(p) > 1:
-      p[0] = ListFromConcat(p[1], p[2])
-
-  def p_StructMember(self, p):
-    """StructMember : ExtendedAttributeList Type identifier ';'"""
-    p[0] = self.BuildNamed('Member', p, 3, ListFromConcat(p[1], p[2]))
-
-  def p_Typedef(self, p):
-    """Typedef : TYPEDEF ExtendedAttributeListNoComments Type identifier ';'"""
-    p[0] = self.BuildNamed('Typedef', p, 4, ListFromConcat(p[2], p[3]))
-
-  def p_TypedefFunc(self, p):
-    """Typedef : TYPEDEF ExtendedAttributeListNoComments ReturnType identifier '(' ArgumentList ')' ';'"""
-    args = self.BuildProduction('Arguments', p, 5, p[6])
-    p[0] = self.BuildNamed('Callback', p, 4, ListFromConcat(p[2], p[3], args))
-
-  def p_ConstValue(self, p):
-    """ConstValue : integer
-                  | integer LSHIFT integer
-                  | integer RSHIFT integer"""
-    val = str(p[1])
-    if len(p) > 2:
-      val = "%s %s %s" % (p[1], p[2], p[3])
-    p[0] = ListFromConcat(self.BuildAttribute('TYPE', 'integer'),
-                          self.BuildAttribute('VALUE', val))
-
-  def p_ConstValueStr(self, p):
-    """ConstValue : string"""
-    p[0] = ListFromConcat(self.BuildAttribute('TYPE', 'string'),
-                          self.BuildAttribute('VALUE', p[1]))
-
-  # Boolean & Float Literals area already BuildAttributes
-  def p_ConstValueLiteral(self, p):
-    """ConstValue : FloatLiteral
-                  | BooleanLiteral """
-    p[0] = p[1]
-
-  def p_EnumValueList(self, p):
-    """EnumValueList : EnumValue EnumValues"""
-    p[0] = ListFromConcat(p[1], p[2])
-
-  def p_EnumValues(self, p):
-    """EnumValues : ',' EnumValue EnumValues
-                  |"""
-    if len(p) > 1:
-      p[0] = ListFromConcat(p[2], p[3])
-
-  def p_EnumValue(self, p):
-    """EnumValue : ExtendedAttributeList identifier
-                 | ExtendedAttributeList identifier '=' ConstValue"""
-    p[0] = self.BuildNamed('EnumItem', p, 2, p[1])
-    if len(p) > 3:
-      p[0].AddChildren(p[4])
-
-  # Omit PromiseType, as it is a JS type.
-  def p_NonAnyType(self, p):
-    """NonAnyType : PrimitiveType TypeSuffix
-                  | identifier TypeSuffix
-                  | SEQUENCE '<' Type '>' Null"""
-    IDLParser.p_NonAnyType(self, p)
-
-  def p_PrimitiveType(self, p):
-    """PrimitiveType : IntegerType
-                     | UnsignedIntegerType
-                     | FloatType
-                     | HandleType
-                     | PointerType"""
-    if type(p[1]) == str:
-      p[0] = self.BuildNamed('PrimitiveType', p, 1)
-    else:
-      p[0] = p[1]
-
-  def p_PointerType(self, p):
-    """PointerType : STR_T
-                   | MEM_T
-                   | CSTR_T
-                   | INTERFACE_T
-                   | NULL"""
-    p[0] = p[1]
-
-  def p_HandleType(self, p):
-    """HandleType : HANDLE_T
-                  | PP_FILEHANDLE"""
-    p[0] = p[1]
-
-  def p_FloatType(self, p):
-    """FloatType : FLOAT_T
-                 | DOUBLE_T"""
-    p[0] = p[1]
-
-  def p_UnsignedIntegerType(self, p):
-    """UnsignedIntegerType : UINT8_T
-                           | UINT16_T
-                           | UINT32_T
-                           | UINT64_T"""
-    p[0] = p[1]
-
-
-  def p_IntegerType(self, p):
-    """IntegerType : CHAR
-                   | INT8_T
-                   | INT16_T
-                   | INT32_T
-                   | INT64_T"""
-    p[0] = p[1]
-
-  # These targets are no longer used
-  def p_OptionalLong(self, p):
-    """ """
-    pass
-
-  def p_UnrestrictedFloatType(self, p):
-    """ """
-    pass
-
-  def p_null(self, p):
-    """ """
-    pass
-
-  def p_PromiseType(self, p):
-    """ """
-    pass
-
-  def p_EnumValueListComma(self, p):
-    """ """
-    pass
-
-  def p_EnumValueListString(self, p):
-    """ """
-    pass
-
-  # We only support:
-  #    [ identifier ]
-  #    [ identifier ( ArgumentList )]
-  #    [ identifier ( ValueList )]
-  #    [ identifier = identifier ]
-  #    [ identifier = ( IdentifierList )]
-  #    [ identifier = ConstValue ]
-  #    [ identifier = identifier ( ArgumentList )]
-  # [51] map directly to 74-77
-  # [52-54, 56] are unsupported
-  def p_ExtendedAttribute(self, p):
-    """ExtendedAttribute : ExtendedAttributeNoArgs
-                         | ExtendedAttributeArgList
-                         | ExtendedAttributeValList
-                         | ExtendedAttributeIdent
-                         | ExtendedAttributeIdentList
-                         | ExtendedAttributeIdentConst
-                         | ExtendedAttributeNamedArgList"""
-    p[0] = p[1]
-
-  def p_ExtendedAttributeValList(self, p):
-    """ExtendedAttributeValList : identifier '(' ValueList ')'"""
-    arguments = self.BuildProduction('Values', p, 2, p[3])
-    p[0] = self.BuildNamed('ExtAttribute', p, 1, arguments)
-
-  def p_ValueList(self, p):
-    """ValueList : ConstValue ValueListCont"""
-    p[0] = ListFromConcat(p[1], p[2])
-
-  def p_ValueListCont(self, p):
-    """ValueListCont : ValueList
-                     |"""
-    if len(p) > 1:
-      p[0] = p[1]
-
-  def p_ExtendedAttributeIdentConst(self, p):
-    """ExtendedAttributeIdentConst : identifier '=' ConstValue"""
-    p[0] = self.BuildNamed('ExtAttribute', p, 1, p[3])
-
-
-  def __init__(self, lexer, verbose=False, debug=False, mute_error=False):
-    IDLParser.__init__(self, lexer, verbose, debug, mute_error)
-
-
-def main(argv):
-  nodes = []
-  parser = IDLPPAPIParser(IDLPPAPILexer())
-  errors = 0
-
-  for filename in argv:
-    filenode = ParseFile(parser, filename)
-    if filenode:
-      errors += filenode.GetProperty('ERRORS')
-      nodes.append(filenode)
-
-  ast = IDLNode('AST', '__AST__', 0, 0, nodes)
-
-  print '\n'.join(ast.Tree(accept_props=['PROD', 'TYPE', 'VALUE']))
-  if errors:
-    print '\nFound %d errors.\n' % errors
-
-
-  return errors
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv[1:]))