Index: sdk/lib/html/scripts/idlparser.py |
diff --git a/sdk/lib/html/scripts/idlparser.py b/sdk/lib/html/scripts/idlparser.py |
deleted file mode 100755 |
index fa905762574eac4cb28c0d308a667c4a23dabdcf..0000000000000000000000000000000000000000 |
--- a/sdk/lib/html/scripts/idlparser.py |
+++ /dev/null |
@@ -1,441 +0,0 @@ |
-#!/usr/bin/python |
-# Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
-# for details. All rights reserved. Use of this source code is governed by a |
-# BSD-style license that can be found in the LICENSE file. |
- |
-import re |
-import subprocess |
-import tempfile |
- |
-from pegparser import * |
- |
-# IDL grammar variants. |
-WEBIDL_SYNTAX = 0 |
-WEBKIT_SYNTAX = 1 |
-FREMONTCUT_SYNTAX = 2 |
- |
- |
-class IDLParser(object): |
- """IDLParser is a PEG based IDL files parser.""" |
- |
- def __init__(self, syntax=WEBIDL_SYNTAX): |
- """Constructor. |
- |
- Initializes the IDLParser by defining the grammar and initializing |
- a PEGParserinstance. |
- |
- Args: |
- syntax -- supports either WEBIDL_SYNTAX (0) or WEBKIT_SYNTAX (1) |
- """ |
- self._syntax = syntax |
- self._pegparser = PegParser(self._idl_grammar(), |
- self._whitespace_grammar(), |
- strings_are_tokens=True) |
- |
- def _idl_grammar(self): |
- """Returns the PEG grammar for IDL parsing.""" |
- |
- # utilities: |
- def syntax_switch(w3c_syntax, webkit_syntax, fremontcut_syntax=None): |
- """Returns w3c_syntax or web_syntax, depending on the current |
- configuration. |
- """ |
- if self._syntax == WEBIDL_SYNTAX: |
- return w3c_syntax |
- elif self._syntax == WEBKIT_SYNTAX: |
- return webkit_syntax |
- elif self._syntax == FREMONTCUT_SYNTAX: |
- if fremontcut_syntax is not None: |
- return fremontcut_syntax |
- return w3c_syntax |
- else: |
- raise RuntimeError('unsupported IDL syntax %s' % syntax) |
- |
- # The following grammar is based on the Web IDL's LL(1) grammar |
- # (specified in: http://dev.w3.org/2006/webapi/WebIDL/#idl-grammar). |
- # It is adjusted to PEG grammar, as well as to also support |
- # WebKit IDL and FremontCut grammar. |
- |
- ###################### BEGIN GRAMMAR ##################### |
- |
- def Id(): |
- return re.compile(r'[\w\_]+') |
- |
- def _Definitions(): |
- return MAYBE(MANY(_Definition)) |
- |
- def _Definition(): |
- return syntax_switch( |
- # Web IDL: |
- OR(Module, Interface, ExceptionDef, TypeDef, ImplStmt, |
- ValueTypeDef, Const), |
- # WebKit: |
- OR(Module, Interface)) |
- |
- def Module(): |
- return syntax_switch( |
- # Web IDL: |
- [MAYBE(ExtAttrs), 'module', Id, '{', _Definitions, '}', |
- MAYBE(';')], |
- # WebKit: |
- ['module', MAYBE(ExtAttrs), Id, '{', _Definitions, '}', |
- MAYBE(';')], |
- # FremontCut: |
- [MAYBE(_Annotations), MAYBE(ExtAttrs), 'module', Id, |
- '{', _Definitions, '}', MAYBE(';')]) |
- |
- def Interface(): |
- return syntax_switch( |
- # Web IDL: |
- [MAYBE(ExtAttrs), 'interface', Id, MAYBE(_ParentInterfaces), |
- MAYBE(['{', MAYBE(MANY(_Member)), '}']), ';'], |
- # WebKit: |
- [MAYBE(ExtAttrs), OR('interface', 'exception'), MAYBE(ExtAttrs), Id, MAYBE(_ParentInterfaces), |
- MAYBE(['{', MAYBE(MANY(_Member)), '}']), MAYBE(';')], |
- # FremontCut: |
- [MAYBE(_Annotations), MAYBE(ExtAttrs), 'interface', |
- Id, MAYBE(_ParentInterfaces), MAYBE(['{', MAYBE(MANY(_Member)), |
- '}']), ';']) |
- |
- def _Member(): |
- return syntax_switch( |
- # Web IDL: |
- OR(Const, Attribute, Operation, ExtAttrs), |
- # WebKit: |
- OR(Const, Attribute, Operation), |
- # FremontCut: |
- OR(Const, Attribute, Operation)) |
- |
- # Interface inheritance: |
- def _ParentInterfaces(): |
- return [':', MANY(ParentInterface, separator=',')] |
- |
- def ParentInterface(): |
- return syntax_switch( |
- # Web IDL: |
- [InterfaceType], |
- # WebKit: |
- [InterfaceType], |
- # FremontCut: |
- [MAYBE(_Annotations), InterfaceType]) |
- |
- # TypeDef (Web IDL): |
- def TypeDef(): |
- return ['typedef', Type, Id, ';'] |
- |
- # TypeDef (Old-school W3C IDLs) |
- def ValueTypeDef(): |
- return ['valuetype', Id, Type, ';'] |
- |
- # Implements Statement (Web IDL): |
- def ImplStmt(): |
- return [ImplStmtImplementor, 'implements', ImplStmtImplemented, |
- ';'] |
- |
- def ImplStmtImplementor(): |
- return ScopedName |
- |
- def ImplStmtImplemented(): |
- return ScopedName |
- |
- # Constants: |
- def Const(): |
- return syntax_switch( |
- # Web IDL: |
- [MAYBE(ExtAttrs), 'const', Type, Id, '=', ConstExpr, ';'], |
- # WebKit: |
- [MAYBE(ExtAttrs), 'const', Type, Id, '=', ConstExpr, ';'], |
- # FremontCut: |
- [MAYBE(_Annotations), MAYBE(ExtAttrs), 'const', Type, Id, '=', |
- ConstExpr, ';']) |
- |
- def ConstExpr(): |
- return OR(_BooleanLiteral, |
- _IntegerLiteral, |
- _FloatLiteral) |
- |
- def _BooleanLiteral(): |
- return re.compile(r'true|false') |
- |
- def _IntegerLiteral(): |
- return OR(re.compile(r'(0x)?[0-9ABCDEF]+'), |
- re.compile(r'[0-9]+')) |
- |
- def _FloatLiteral(): |
- return re.compile(r'[0-9]+\.[0-9]*') |
- |
- # Attributes: |
- def Attribute(): |
- return syntax_switch( |
- # Web IDL: |
- [MAYBE(ExtAttrs), MAYBE(Stringifier), MAYBE(ReadOnly), |
- 'attribute', Type, Id, MAYBE(_AttrRaises), ';'], |
- # WebKit: |
- [ |
- MAYBE(Stringifier), |
- MAYBE(ExtAttrs), MAYBE(Static), MAYBE(ReadOnly), 'attribute', MAYBE(ExtAttrs), |
- Type, Id, MAYBE(_AttrRaises), ';'], |
- # FremontCut: |
- [MAYBE(_Annotations), MAYBE(ExtAttrs), |
- MAYBE(_AttrGetterSetter), MAYBE(Stringifier), MAYBE(ReadOnly), |
- 'attribute', Type, Id, MAYBE(_AttrRaises), ';']) |
- |
- def _AttrRaises(): |
- return syntax_switch( |
- # Web IDL: |
- MANY(OR(GetRaises, SetRaises)), |
- # WebKit: |
- MANY(OR(GetRaises, SetRaises, Raises), separator=',')) |
- |
- # Special fremontcut feature: |
- def _AttrGetterSetter(): |
- return OR(AttrGetter, AttrSetter) |
- |
- def AttrGetter(): |
- return 'getter' |
- |
- def AttrSetter(): |
- return 'setter' |
- |
- def ReadOnly(): |
- return 'readonly' |
- |
- def GetRaises(): |
- return syntax_switch( |
- # Web IDL: |
- ['getraises', '(', _ScopedNames, ')'], |
- # WebKit: |
- ['getter', 'raises', '(', _ScopedNames, ')']) |
- |
- def SetRaises(): |
- return syntax_switch( |
- # Web IDL: |
- ['setraises', '(', _ScopedNames, ')'], |
- # WebKit: |
- ['setter', 'raises', '(', _ScopedNames, ')']) |
- |
- # Operation: |
- def Operation(): |
- return syntax_switch( |
- # Web IDL: |
- [MAYBE(ExtAttrs), MAYBE(Static), MAYBE(Stringifier), MAYBE(_Specials), |
- ReturnType, MAYBE(Id), '(', _Arguments, ')', MAYBE(Raises), |
- ';'], |
- # WebKit: |
- [MAYBE(ExtAttrs), MAYBE(Static), |
- ReturnType, MAYBE(Id), '(', _Arguments, ')', |
- MAYBE(Raises), ';'], |
- # FremontCut: |
- [MAYBE(_Annotations), MAYBE(ExtAttrs), MAYBE(Static), MAYBE(Stringifier), |
- MAYBE(_Specials), ReturnType, MAYBE(Id), '(', _Arguments, ')', |
- MAYBE(Raises), ';']) |
- |
- def Static(): |
- return 'static' |
- |
- def _Specials(): |
- return MANY(Special) |
- |
- def Special(): |
- return re.compile(r'getter|setter|creator|deleter|caller') |
- |
- def Stringifier(): |
- return 'stringifier' |
- |
- def Raises(): |
- return ['raises', '(', _ScopedNames, ')'] |
- |
- # Operation arguments: |
- def _Arguments(): |
- return MAYBE(MANY(Argument, ',')) |
- |
- def Argument(): |
- return syntax_switch( |
- # Web IDL: |
- [MAYBE(ExtAttrs), MAYBE(Optional), MAYBE('in'), |
- MAYBE(Optional), Type, MAYBE(AnEllipsis), Id], |
- # WebKit: |
- [MAYBE(Optional), MAYBE('in'), MAYBE(Optional), |
- MAYBE(ExtAttrs), Type, Id]) |
- |
- def Optional(): |
- return 'optional' |
- |
- def AnEllipsis(): |
- return '...' |
- |
- # Exceptions (Web IDL). |
- def ExceptionDef(): |
- return ['exception', Id, '{', MAYBE(MANY(_ExceptionMember)), '}', |
- ';'] |
- |
- def _ExceptionMember(): |
- return OR(Const, ExceptionField, ExtAttrs) |
- |
- def ExceptionField(): |
- return [Type, Id, ';'] |
- |
- # Types: |
- def Type(): |
- return _Type |
- |
- def ReturnType(): |
- return OR(VoidType, _Type) |
- |
- def InterfaceType(): |
- return ScopedName |
- |
- def ArrayModifiers(): |
- return re.compile(r'(\[\])+') |
- |
- def _Type(): |
- return OR( |
- [OR(AnyType, ObjectType), MAYBE([ArrayModifiers, MAYBE(Nullable)])], |
- [_NullableNonArrayType(), MAYBE(ArrayModifiers), MAYBE(Nullable)]) |
- |
- def _NullableNonArrayType(): |
- return [OR(_IntegerType, BooleanType, OctetType, FloatType, |
- DoubleType, SequenceType, ScopedName)] |
- |
- def Nullable(): |
- return '?' |
- |
- def SequenceType(): |
- return ['sequence', '<', Type, '>'] |
- |
- def AnyType(): |
- return 'any' |
- |
- def ObjectType(): |
- return re.compile(r'(object|Object)\b') # both spellings. |
- |
- def VoidType(): |
- return 'void' |
- |
- def _IntegerType(): |
- return [MAYBE(Unsigned), OR(ByteType, IntType, LongLongType, |
- LongType, OctetType, ShortType)] |
- |
- def Unsigned(): |
- return 'unsigned' |
- |
- def ShortType(): |
- return 'short' |
- |
- def LongLongType(): |
- return ['long', 'long'] |
- |
- def LongType(): |
- return 'long' |
- |
- def IntType(): |
- return 'int' |
- |
- def ByteType(): |
- return 'byte' |
- |
- def OctetType(): |
- return 'octet' |
- |
- def BooleanType(): |
- return 'boolean' |
- |
- def FloatType(): |
- return 'float' |
- |
- def DoubleType(): |
- return 'double' |
- |
- def _ScopedNames(): |
- return MANY(ScopedName, separator=',') |
- |
- def ScopedName(): |
- return re.compile(r'[\w\_\:\.\<\>]+') |
- |
- # Extended Attributes: |
- def ExtAttrs(): |
- return ['[', MAYBE(MANY(ExtAttr, ',')), ']'] |
- |
- def ExtAttr(): |
- return [Id, MAYBE(OR(['=', ExtAttrValue], ExtAttrArgList))] |
- |
- def ExtAttrValue(): |
- return OR(ExtAttrFunctionValue, re.compile(r'[\w&0-9:\-\| ]+')) |
- |
- def ExtAttrFunctionValue(): |
- return [Id, ExtAttrArgList] |
- |
- def ExtAttrArgList(): |
- return ['(', MAYBE(MANY(Argument, ',')), ')'] |
- |
- # Annotations - used in the FremontCut IDL grammar: |
- def _Annotations(): |
- return MANY(Annotation) |
- |
- def Annotation(): |
- return ['@', Id, MAYBE(_AnnotationBody)] |
- |
- def _AnnotationBody(): |
- return ['(', MAYBE(MANY(AnnotationArg, ',')), ')'] |
- |
- def AnnotationArg(): |
- return [Id, MAYBE(['=', AnnotationArgValue])] |
- |
- def AnnotationArgValue(): |
- return re.compile(r'[\w&0-9:/\-\.]+') |
- |
- ###################### END GRAMMAR ##################### |
- |
- # Return the grammar's root rule: |
- return MANY(_Definition) |
- |
- def _whitespace_grammar(self): |
- return OR(re.compile(r'\s+'), |
- re.compile(r'//.*'), |
- re.compile(r'#.*'), |
- re.compile(r'/\*.*?\*/', re.S)) |
- |
- def _pre_process(self, content, defines, includePaths): |
- """Pre-processes the content using gcc. |
- |
- WebKit IDLs require pre-processing by gcc. This is done by invoking |
- gcc in a sub-process and capturing the results. |
- |
- Returns: |
- The result of running gcc on the content. |
- |
- Args: |
- content -- text to process. |
- defines -- an array of pre-processor defines. |
- includePaths -- an array of path strings. |
- """ |
- # FIXME: Handle gcc not found, or any other processing errors |
- gcc = 'gcc' |
- cmd = [gcc, '-E', '-P', '-C', '-x', 'c++'] |
- for define in defines: |
- cmd.append('-D%s' % define) |
- cmd.append('-') |
- pipe = subprocess.Popen(cmd, stdin=subprocess.PIPE, |
- stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
- (content, stderr) = pipe.communicate(content) |
- return content |
- |
- def parse(self, content, defines=[], includePaths=[]): |
- """Parse the give content string. |
- |
- The WebKit IDL syntax also allows gcc pre-processing instructions. |
- Lists of defined variables and include paths can be provided. |
- |
- Returns: |
- An abstract syntax tree (AST). |
- |
- Args: |
- content -- text to parse. |
- defines -- an array of pre-processor defines. |
- includePaths -- an array of path strings used by the |
- gcc pre-processor. |
- """ |
- if self._syntax == WEBKIT_SYNTAX: |
- content = self._pre_process(content, defines, includePaths) |
- |
- return self._pegparser.parse(content) |