| // Copyright (c) 2020, 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 'dart:typed_data' show Uint8List; |
| |
| import 'dart:io' show File; |
| |
| import 'package:_fe_analyzer_shared/src/messages/codes.dart'; |
| import 'package:_fe_analyzer_shared/src/scanner/scanner.dart' |
| show ScannerConfiguration; |
| |
| import 'package:_fe_analyzer_shared/src/parser/parser.dart' |
| show ClassMemberParser, Parser; |
| |
| import 'package:_fe_analyzer_shared/src/scanner/utf8_bytes_scanner.dart' |
| show Utf8BytesScanner; |
| |
| import 'package:_fe_analyzer_shared/src/scanner/token.dart' show Token; |
| |
| import 'package:_fe_analyzer_shared/src/parser/listener.dart' |
| show UnescapeErrorListener; |
| |
| import 'package:_fe_analyzer_shared/src/parser/identifier_context.dart'; |
| |
| import 'package:_fe_analyzer_shared/src/parser/quote.dart' show unescapeString; |
| |
| import '../source/diet_parser.dart'; |
| |
| import 'parser_ast_helper.dart'; |
| |
| CompilationUnitEnd getAST(List<int> rawBytes, |
| {bool includeBody = true, |
| bool includeComments = false, |
| bool enableExtensionMethods = false, |
| bool enableNonNullable = false, |
| bool enableTripleShift = false, |
| bool allowPatterns = false, |
| List<Token>? languageVersionsSeen}) { |
| Uint8List bytes = new Uint8List(rawBytes.length + 1); |
| bytes.setRange(0, rawBytes.length, rawBytes); |
| |
| ScannerConfiguration scannerConfiguration = new ScannerConfiguration( |
| enableExtensionMethods: enableExtensionMethods, |
| enableNonNullable: enableNonNullable, |
| enableTripleShift: enableTripleShift); |
| |
| Utf8BytesScanner scanner = new Utf8BytesScanner( |
| bytes, |
| includeComments: includeComments, |
| configuration: scannerConfiguration, |
| languageVersionChanged: (scanner, languageVersion) { |
| // For now don't do anything, but having it (making it non-null) means the |
| // configuration won't be reset. |
| languageVersionsSeen?.add(languageVersion); |
| }, |
| ); |
| Token firstToken = scanner.tokenize(); |
| ParserASTListener listener = new ParserASTListener(); |
| Parser parser; |
| if (includeBody) { |
| parser = new Parser( |
| listener, |
| useImplicitCreationExpression: useImplicitCreationExpressionInCfe, |
| allowPatterns: allowPatterns, |
| ); |
| } else { |
| parser = new ClassMemberParser( |
| listener, |
| useImplicitCreationExpression: useImplicitCreationExpressionInCfe, |
| allowPatterns: allowPatterns, |
| ); |
| } |
| parser.parseUnit(firstToken); |
| return listener.data.single as CompilationUnitEnd; |
| } |
| |
| /// Best-effort visitor for ParserAstNode that visits top-level entries |
| /// and class members only (i.e. no bodies, no field initializer content, no |
| /// names etc). |
| class ParserAstVisitor { |
| void accept(ParserAstNode node) { |
| if (node is CompilationUnitEnd || |
| node is TopLevelDeclarationEnd || |
| node is ClassOrMixinOrExtensionBodyEnd || |
| node is MemberEnd) { |
| visitChildren(node); |
| return; |
| } |
| |
| if (node.type == ParserAstType.BEGIN) { |
| // Ignored. These are basically just dummy nodes anyway. |
| assert(node.children == null); |
| return; |
| } |
| if (node.type == ParserAstType.HANDLE) { |
| // Ignored at least for know. |
| assert(node.children == null); |
| return; |
| } |
| if (node is TypeVariablesEnd || |
| node is TypeArgumentsEnd || |
| node is TypeListEnd || |
| node is FunctionTypeEnd || |
| node is BlockEnd) { |
| // Ignored at least for know. |
| return; |
| } |
| if (node is MetadataStarEnd) { |
| MetadataStarEnd metadata = node; |
| visitMetadataStar(metadata); |
| return; |
| } |
| if (node is TypedefEnd) { |
| TypedefEnd typedefDecl = node; |
| visitTypedef( |
| typedefDecl, typedefDecl.typedefKeyword, typedefDecl.endToken); |
| return; |
| } |
| if (node is ClassDeclarationEnd) { |
| ClassDeclarationEnd cls = node; |
| visitClass(cls, cls.beginToken, cls.endToken); |
| return; |
| } |
| if (node is TopLevelMethodEnd) { |
| TopLevelMethodEnd method = node; |
| visitTopLevelMethod(method, method.beginToken, method.endToken); |
| return; |
| } |
| if (node is ClassMethodEnd) { |
| ClassMethodEnd method = node; |
| visitClassMethod(method, method.beginToken, method.endToken); |
| return; |
| } |
| if (node is ExtensionMethodEnd) { |
| ExtensionMethodEnd method = node; |
| visitExtensionMethod(method, method.beginToken, method.endToken); |
| return; |
| } |
| if (node is ExtensionTypeMethodEnd) { |
| ExtensionTypeMethodEnd method = node; |
| visitExtensionTypeMethod(method, method.beginToken, method.endToken); |
| return; |
| } |
| if (node is MixinMethodEnd) { |
| MixinMethodEnd method = node; |
| visitMixinMethod(method, method.beginToken, method.endToken); |
| return; |
| } |
| if (node is ImportEnd) { |
| ImportEnd import = node; |
| visitImport(import, import.importKeyword, import.semicolon); |
| return; |
| } |
| if (node is ExportEnd) { |
| ExportEnd export = node; |
| visitExport(export, export.exportKeyword, export.semicolon); |
| return; |
| } |
| if (node is TopLevelFieldsEnd) { |
| // TODO(jensj): Possibly this could go into more details too |
| // (e.g. to split up a field declaration). |
| TopLevelFieldsEnd fields = node; |
| visitTopLevelFields(fields, fields.beginToken, fields.endToken); |
| return; |
| } |
| if (node is ClassFieldsEnd) { |
| // TODO(jensj): Possibly this could go into more details too |
| // (e.g. to split up a field declaration). |
| ClassFieldsEnd fields = node; |
| visitClassFields(fields, fields.beginToken, fields.endToken); |
| return; |
| } |
| if (node is ExtensionFieldsEnd) { |
| // TODO(jensj): Possibly this could go into more details too |
| // (e.g. to split up a field declaration). |
| ExtensionFieldsEnd fields = node; |
| visitExtensionFields(fields, fields.beginToken, fields.endToken); |
| return; |
| } |
| if (node is ExtensionTypeFieldsEnd) { |
| // TODO(jensj): Possibly this could go into more details too |
| // (e.g. to split up a field declaration). |
| ExtensionTypeFieldsEnd fields = node; |
| visitExtensionTypeFields(fields, fields.beginToken, fields.endToken); |
| return; |
| } |
| if (node is MixinFieldsEnd) { |
| // TODO(jensj): Possibly this could go into more details too |
| // (e.g. to split up a field declaration). |
| MixinFieldsEnd fields = node; |
| visitMixinFields(fields, fields.beginToken, fields.endToken); |
| return; |
| } |
| if (node is NamedMixinApplicationEnd) { |
| NamedMixinApplicationEnd namedMixin = node; |
| visitNamedMixin(namedMixin, namedMixin.begin, namedMixin.endToken); |
| return; |
| } |
| if (node is MixinDeclarationEnd) { |
| MixinDeclarationEnd declaration = node; |
| visitMixin(declaration, declaration.beginToken, declaration.endToken); |
| return; |
| } |
| if (node is EnumEnd) { |
| EnumEnd declaration = node; |
| visitEnum(declaration, declaration.enumKeyword, |
| declaration.leftBrace.endGroup!); |
| return; |
| } |
| if (node is LibraryNameEnd) { |
| LibraryNameEnd name = node; |
| visitLibraryName(name, name.libraryKeyword, name.semicolon); |
| return; |
| } |
| if (node is PartEnd) { |
| PartEnd part = node; |
| visitPart(part, part.partKeyword, part.semicolon); |
| return; |
| } |
| if (node is PartOfEnd) { |
| PartOfEnd partOf = node; |
| visitPartOf(partOf, partOf.partKeyword, partOf.semicolon); |
| return; |
| } |
| if (node is ExtensionDeclarationEnd) { |
| ExtensionDeclarationEnd ext = node; |
| visitExtension(ext, ext.beginToken, ext.endToken); |
| return; |
| } |
| if (node is ExtensionTypeDeclarationEnd) { |
| ExtensionTypeDeclarationEnd ext = node; |
| visitExtensionTypeDeclaration(ext, ext.extensionKeyword, ext.endToken); |
| return; |
| } |
| if (node is ClassConstructorEnd) { |
| ClassConstructorEnd decl = node; |
| visitClassConstructor(decl, decl.beginToken, decl.endToken); |
| return; |
| } |
| if (node is ExtensionConstructorEnd) { |
| ExtensionConstructorEnd decl = node; |
| visitExtensionConstructor(decl, decl.beginToken, decl.endToken); |
| return; |
| } |
| if (node is ExtensionTypeConstructorEnd) { |
| ExtensionTypeConstructorEnd decl = node; |
| visitExtensionTypeConstructor(decl, decl.beginToken, decl.endToken); |
| return; |
| } |
| if (node is ClassFactoryMethodEnd) { |
| ClassFactoryMethodEnd decl = node; |
| visitClassFactoryMethod(decl, decl.beginToken, decl.endToken); |
| return; |
| } |
| if (node is ExtensionFactoryMethodEnd) { |
| ExtensionFactoryMethodEnd decl = node; |
| visitExtensionFactoryMethod(decl, decl.beginToken, decl.endToken); |
| return; |
| } |
| if (node is ExtensionTypeFactoryMethodEnd) { |
| ExtensionTypeFactoryMethodEnd decl = node; |
| visitExtensionTypeFactoryMethod(decl, decl.beginToken, decl.endToken); |
| return; |
| } |
| if (node is MetadataEnd) { |
| MetadataEnd decl = node; |
| // TODO(jensj): endToken is not part of the metadata! It's the first token |
| // of the next thing. |
| visitMetadata(decl, decl.beginToken, decl.endToken.previous!); |
| return; |
| } |
| |
| throw "Unknown: $node (${node.runtimeType} @ ${node.what})"; |
| } |
| |
| void visitChildren(ParserAstNode node) { |
| if (node.children == null) return; |
| final int numChildren = node.children!.length; |
| for (int i = 0; i < numChildren; i++) { |
| ParserAstNode child = node.children![i]; |
| accept(child); |
| } |
| } |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitImport(ImportEnd node, Token startInclusive, Token? endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExport(ExportEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitTypedef( |
| TypedefEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers can call visitChildren on this node. |
| void visitMetadataStar(MetadataStarEnd node) { |
| visitChildren(node); |
| } |
| |
| /// Note: Implementers can call visitChildren on this node. |
| void visitClass( |
| ClassDeclarationEnd node, Token startInclusive, Token endInclusive) { |
| visitChildren(node); |
| } |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitTopLevelMethod( |
| TopLevelMethodEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitClassMethod( |
| ClassMethodEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionMethod( |
| ExtensionMethodEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionTypeMethod( |
| ExtensionTypeMethodEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitMixinMethod( |
| MixinMethodEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitTopLevelFields( |
| TopLevelFieldsEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitClassFields( |
| ClassFieldsEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionFields( |
| ExtensionFieldsEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionTypeFields( |
| ExtensionTypeFieldsEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitMixinFields( |
| MixinFieldsEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers can call visitChildren on this node. |
| void visitNamedMixin( |
| NamedMixinApplicationEnd node, Token startInclusive, Token endInclusive) { |
| visitChildren(node); |
| } |
| |
| /// Note: Implementers can call visitChildren on this node. |
| void visitMixin( |
| MixinDeclarationEnd node, Token startInclusive, Token endInclusive) { |
| visitChildren(node); |
| } |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitEnum(EnumEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitLibraryName( |
| LibraryNameEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitPart(PartEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitPartOf(PartOfEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers can call visitChildren on this node. |
| void visitExtension( |
| ExtensionDeclarationEnd node, Token startInclusive, Token endInclusive) { |
| visitChildren(node); |
| } |
| |
| /// Note: Implementers can call visitChildren on this node. |
| void visitExtensionTypeDeclaration(ExtensionTypeDeclarationEnd node, |
| Token startInclusive, Token endInclusive) { |
| visitChildren(node); |
| } |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitClassConstructor( |
| ClassConstructorEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionConstructor( |
| ExtensionConstructorEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionTypeConstructor(ExtensionTypeConstructorEnd node, |
| Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitClassFactoryMethod( |
| ClassFactoryMethodEnd node, Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionFactoryMethod(ExtensionFactoryMethodEnd node, |
| Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitExtensionTypeFactoryMethod(ExtensionTypeFactoryMethodEnd node, |
| Token startInclusive, Token endInclusive) {} |
| |
| /// Note: Implementers are NOT expected to call visitChildren on this node. |
| void visitMetadata( |
| MetadataEnd node, Token startInclusive, Token endInclusive) {} |
| } |
| |
| extension GeneralASTContentExtension on ParserAstNode { |
| bool isClass() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first |
| // ignore: lines_longer_than_80_chars |
| is! ClassOrMixinOrNamedMixinApplicationPreludeBegin) { |
| return false; |
| } |
| if (children!.last is! ClassDeclarationEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| ClassDeclarationEnd asClass() { |
| if (!isClass()) throw "Not class"; |
| return children!.last as ClassDeclarationEnd; |
| } |
| |
| bool isImport() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! ImportEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| ImportEnd asImport() { |
| if (!isImport()) throw "Not import"; |
| return children!.last as ImportEnd; |
| } |
| |
| bool isExport() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! ExportEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| ExportEnd asExport() { |
| if (!isExport()) throw "Not export"; |
| return children!.last as ExportEnd; |
| } |
| |
| bool isEnum() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! EnumEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| EnumEnd asEnum() { |
| if (!isEnum()) throw "Not enum"; |
| return children!.last as EnumEnd; |
| } |
| |
| bool isTypedef() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! TypedefEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| TypedefEnd asTypedef() { |
| if (!isTypedef()) throw "Not typedef"; |
| return children!.last as TypedefEnd; |
| } |
| |
| bool isScript() { |
| if (this is! ScriptHandle) { |
| return false; |
| } |
| return true; |
| } |
| |
| ScriptHandle asScript() { |
| if (!isScript()) throw "Not script"; |
| return this as ScriptHandle; |
| } |
| |
| bool isExtension() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! ExtensionDeclarationPreludeBegin) { |
| return false; |
| } |
| if (children!.last is! ExtensionDeclarationEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| ExtensionDeclarationEnd asExtension() { |
| if (!isExtension()) throw "Not extension"; |
| return children!.last as ExtensionDeclarationEnd; |
| } |
| |
| bool isInvalidTopLevelDeclaration() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! TopLevelMemberBegin) { |
| return false; |
| } |
| if (children!.last is! InvalidTopLevelDeclarationHandle) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool isRecoverableError() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! RecoverableErrorHandle) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool isRecoverImport() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! RecoverImportHandle) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool isMixinDeclaration() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first |
| // ignore: lines_longer_than_80_chars |
| is! ClassOrMixinOrNamedMixinApplicationPreludeBegin) { |
| return false; |
| } |
| if (children!.last is! MixinDeclarationEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| MixinDeclarationEnd asMixinDeclaration() { |
| if (!isMixinDeclaration()) throw "Not mixin declaration"; |
| return children!.last as MixinDeclarationEnd; |
| } |
| |
| bool isNamedMixinDeclaration() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first |
| // ignore: lines_longer_than_80_chars |
| is! ClassOrMixinOrNamedMixinApplicationPreludeBegin) { |
| return false; |
| } |
| if (children!.last is! NamedMixinApplicationEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| NamedMixinApplicationEnd asNamedMixinDeclaration() { |
| if (!isNamedMixinDeclaration()) throw "Not named mixin declaration"; |
| return children!.last as NamedMixinApplicationEnd; |
| } |
| |
| bool isTopLevelMethod() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! TopLevelMemberBegin) { |
| return false; |
| } |
| if (children!.last is! TopLevelMethodEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| TopLevelMethodEnd asTopLevelMethod() { |
| if (!isTopLevelMethod()) throw "Not top level method"; |
| return children!.last as TopLevelMethodEnd; |
| } |
| |
| bool isTopLevelFields() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! TopLevelMemberBegin) { |
| return false; |
| } |
| if (children!.last is! TopLevelFieldsEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| TopLevelFieldsEnd asTopLevelFields() { |
| if (!isTopLevelFields()) throw "Not top level fields"; |
| return children!.last as TopLevelFieldsEnd; |
| } |
| |
| bool isLibraryName() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! LibraryNameEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| LibraryNameEnd asLibraryName() { |
| if (!isLibraryName()) throw "Not library name"; |
| return children!.last as LibraryNameEnd; |
| } |
| |
| bool isPart() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! PartEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| PartEnd asPart() { |
| if (!isPart()) throw "Not part"; |
| return children!.last as PartEnd; |
| } |
| |
| bool isPartOf() { |
| if (this is! TopLevelDeclarationEnd) { |
| return false; |
| } |
| if (children!.first is! UncategorizedTopLevelDeclarationBegin) { |
| return false; |
| } |
| if (children!.last is! PartOfEnd) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| PartOfEnd asPartOf() { |
| if (!isPartOf()) throw "Not part of"; |
| return children!.last as PartOfEnd; |
| } |
| |
| bool isMetadata() { |
| if (this is! MetadataStarEnd) { |
| return false; |
| } |
| if (children!.first is! MetadataStarBegin) { |
| return false; |
| } |
| return true; |
| } |
| |
| MetadataStarEnd asMetadata() { |
| if (!isMetadata()) throw "Not metadata"; |
| return this as MetadataStarEnd; |
| } |
| |
| bool isFunctionBody() { |
| if (this is BlockFunctionBodyEnd) return true; |
| return false; |
| } |
| |
| BlockFunctionBodyEnd asFunctionBody() { |
| if (!isFunctionBody()) throw "Not function body"; |
| return this as BlockFunctionBodyEnd; |
| } |
| |
| List<E> recursivelyFind<E extends ParserAstNode>() { |
| Set<E> result = {}; |
| _recursivelyFindInternal(this, result); |
| return result.toList(); |
| } |
| |
| static void _recursivelyFindInternal<E extends ParserAstNode>( |
| ParserAstNode node, Set<E> result) { |
| if (node is E) { |
| result.add(node); |
| return; |
| } |
| if (node.children == null) return; |
| for (ParserAstNode child in node.children!) { |
| _recursivelyFindInternal(child, result); |
| } |
| } |
| |
| void debugDumpNodeRecursively({String indent = ""}) { |
| print("$indent${runtimeType} (${what}) " |
| "(${deprecatedArguments})"); |
| if (children == null) return; |
| for (ParserAstNode child in children!) { |
| child.debugDumpNodeRecursively(indent: " $indent"); |
| } |
| } |
| } |
| |
| extension MetadataStarExtension on MetadataStarEnd { |
| List<MetadataEnd> getMetadataEntries() { |
| List<MetadataEnd> result = []; |
| for (ParserAstNode topLevel in children!) { |
| if (topLevel is! MetadataEnd) continue; |
| result.add(topLevel); |
| } |
| return result; |
| } |
| } |
| |
| extension CompilationUnitExtension on CompilationUnitEnd { |
| List<TopLevelDeclarationEnd> getClasses() { |
| List<TopLevelDeclarationEnd> result = []; |
| for (ParserAstNode topLevel in children!) { |
| if (!topLevel.isClass()) continue; |
| result.add(topLevel as TopLevelDeclarationEnd); |
| } |
| return result; |
| } |
| |
| List<TopLevelDeclarationEnd> getMixinDeclarations() { |
| List<TopLevelDeclarationEnd> result = []; |
| for (ParserAstNode topLevel in children!) { |
| if (!topLevel.isMixinDeclaration()) continue; |
| result.add(topLevel as TopLevelDeclarationEnd); |
| } |
| return result; |
| } |
| |
| List<ImportEnd> getImports() { |
| List<ImportEnd> result = []; |
| for (ParserAstNode topLevel in children!) { |
| if (!topLevel.isImport()) continue; |
| result.add(topLevel.children!.last as ImportEnd); |
| } |
| return result; |
| } |
| |
| List<ExportEnd> getExports() { |
| List<ExportEnd> result = []; |
| for (ParserAstNode topLevel in children!) { |
| if (!topLevel.isExport()) continue; |
| result.add(topLevel.children!.last as ExportEnd); |
| } |
| return result; |
| } |
| |
| // List<MetadataStarEnd> getMetadata() { |
| // List<MetadataStarEnd> result = []; |
| // for (ParserAstNode topLevel in children) { |
| // if (!topLevel.isMetadata()) continue; |
| // result.add(topLevel); |
| // } |
| // return result; |
| // } |
| |
| // List<EnumEnd> getEnums() { |
| // List<EnumEnd> result = []; |
| // for (ParserAstNode topLevel in children) { |
| // if (!topLevel.isEnum()) continue; |
| // result.add(topLevel.children.last); |
| // } |
| // return result; |
| // } |
| |
| // List<FunctionTypeAliasEnd> getTypedefs() { |
| // List<FunctionTypeAliasEnd> result = []; |
| // for (ParserAstNode topLevel in children) { |
| // if (!topLevel.isTypedef()) continue; |
| // result.add(topLevel.children.last); |
| // } |
| // return result; |
| // } |
| |
| // List<MixinDeclarationEnd> getMixinDeclarations() { |
| // List<MixinDeclarationEnd> result = []; |
| // for (ParserAstNode topLevel in children) { |
| // if (!topLevel.isMixinDeclaration()) continue; |
| // result.add(topLevel.children.last); |
| // } |
| // return result; |
| // } |
| |
| // List<TopLevelMethodEnd> getTopLevelMethods() { |
| // List<TopLevelMethodEnd> result = []; |
| // for (ParserAstNode topLevel in children) { |
| // if (!topLevel.isTopLevelMethod()) continue; |
| // result.add(topLevel.children.last); |
| // } |
| // return result; |
| // } |
| |
| CompilationUnitBegin getBegin() { |
| return children!.first as CompilationUnitBegin; |
| } |
| } |
| |
| extension TopLevelDeclarationExtension on TopLevelDeclarationEnd { |
| IdentifierHandle getIdentifier() { |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) return child; |
| } |
| throw "Not found."; |
| } |
| |
| ClassDeclarationEnd getClassDeclaration() { |
| if (!isClass()) { |
| throw "Not a class"; |
| } |
| for (ParserAstNode child in children!) { |
| if (child is ClassDeclarationEnd) { |
| return child; |
| } |
| } |
| throw "Not found."; |
| } |
| } |
| |
| extension MixinDeclarationExtension on MixinDeclarationEnd { |
| ClassOrMixinOrExtensionBodyEnd getClassOrMixinOrExtensionBody() { |
| for (ParserAstNode child in children!) { |
| if (child is ClassOrMixinOrExtensionBodyEnd) { |
| return child; |
| } |
| } |
| throw "Not found."; |
| } |
| } |
| |
| extension ClassDeclarationExtension on ClassDeclarationEnd { |
| ClassOrMixinOrExtensionBodyEnd getClassOrMixinOrExtensionBody() { |
| for (ParserAstNode child in children!) { |
| if (child is ClassOrMixinOrExtensionBodyEnd) { |
| return child; |
| } |
| } |
| throw "Not found."; |
| } |
| |
| ClassExtendsHandle getClassExtends() { |
| for (ParserAstNode child in children!) { |
| if (child is ClassExtendsHandle) return child; |
| } |
| throw "Not found."; |
| } |
| |
| ImplementsHandle getClassImplements() { |
| for (ParserAstNode child in children!) { |
| if (child is ImplementsHandle) { |
| return child; |
| } |
| } |
| throw "Not found."; |
| } |
| |
| ClassWithClauseHandle? getClassWithClause() { |
| for (ParserAstNode child in children!) { |
| if (child is ClassWithClauseHandle) { |
| return child; |
| } |
| } |
| return null; |
| } |
| } |
| |
| extension ClassOrMixinBodyExtension on ClassOrMixinOrExtensionBodyEnd { |
| List<MemberEnd> getMembers() { |
| List<MemberEnd> members = []; |
| for (ParserAstNode child in children!) { |
| if (child is MemberEnd) { |
| members.add(child); |
| } |
| } |
| return members; |
| } |
| } |
| |
| extension MemberExtension on MemberEnd { |
| bool isClassConstructor() { |
| ParserAstNode child = children![1]; |
| if (child is ClassConstructorEnd) return true; |
| return false; |
| } |
| |
| ClassConstructorEnd getClassConstructor() { |
| ParserAstNode child = children![1]; |
| if (child is ClassConstructorEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isClassFactoryMethod() { |
| ParserAstNode child = children![1]; |
| if (child is ClassFactoryMethodEnd) return true; |
| return false; |
| } |
| |
| ClassFactoryMethodEnd getClassFactoryMethod() { |
| ParserAstNode child = children![1]; |
| if (child is ClassFactoryMethodEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isClassFields() { |
| ParserAstNode child = children![1]; |
| if (child is ClassFieldsEnd) return true; |
| return false; |
| } |
| |
| ClassFieldsEnd getClassFields() { |
| ParserAstNode child = children![1]; |
| if (child is ClassFieldsEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isMixinFields() { |
| ParserAstNode child = children![1]; |
| if (child is MixinFieldsEnd) return true; |
| return false; |
| } |
| |
| MixinFieldsEnd getMixinFields() { |
| ParserAstNode child = children![1]; |
| if (child is MixinFieldsEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isMixinMethod() { |
| ParserAstNode child = children![1]; |
| if (child is MixinMethodEnd) return true; |
| return false; |
| } |
| |
| MixinMethodEnd getMixinMethod() { |
| ParserAstNode child = children![1]; |
| if (child is MixinMethodEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isMixinFactoryMethod() { |
| ParserAstNode child = children![1]; |
| if (child is MixinFactoryMethodEnd) return true; |
| return false; |
| } |
| |
| MixinFactoryMethodEnd getMixinFactoryMethod() { |
| ParserAstNode child = children![1]; |
| if (child is MixinFactoryMethodEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isMixinConstructor() { |
| ParserAstNode child = children![1]; |
| if (child is MixinConstructorEnd) return true; |
| return false; |
| } |
| |
| MixinConstructorEnd getMixinConstructor() { |
| ParserAstNode child = children![1]; |
| if (child is MixinConstructorEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isClassMethod() { |
| ParserAstNode child = children![1]; |
| if (child is ClassMethodEnd) return true; |
| return false; |
| } |
| |
| ClassMethodEnd getClassMethod() { |
| ParserAstNode child = children![1]; |
| if (child is ClassMethodEnd) return child; |
| throw "Not found"; |
| } |
| |
| bool isClassRecoverableError() { |
| ParserAstNode child = children![1]; |
| if (child is RecoverableErrorHandle) return true; |
| return false; |
| } |
| } |
| |
| extension MixinFieldsExtension on MixinFieldsEnd { |
| List<IdentifierHandle> getFieldIdentifiers() { |
| int countLeft = count; |
| List<IdentifierHandle>? identifiers; |
| for (int i = children!.length - 1; i >= 0; i--) { |
| ParserAstNode child = children![i]; |
| if (child is IdentifierHandle && |
| child.context == IdentifierContext.fieldDeclaration) { |
| countLeft--; |
| if (identifiers == null) { |
| identifiers = new List<IdentifierHandle>.filled(count, child); |
| } else { |
| identifiers[countLeft] = child; |
| } |
| if (countLeft == 0) break; |
| } |
| } |
| if (countLeft != 0) throw "Didn't find the expected number of identifiers"; |
| return identifiers ?? []; |
| } |
| } |
| |
| extension ExtensionFieldsExtension on ExtensionFieldsEnd { |
| List<IdentifierHandle> getFieldIdentifiers() { |
| int countLeft = count; |
| List<IdentifierHandle>? identifiers; |
| for (int i = children!.length - 1; i >= 0; i--) { |
| ParserAstNode child = children![i]; |
| if (child is IdentifierHandle && |
| child.context == IdentifierContext.fieldDeclaration) { |
| countLeft--; |
| if (identifiers == null) { |
| identifiers = new List<IdentifierHandle>.filled(count, child); |
| } else { |
| identifiers[countLeft] = child; |
| } |
| if (countLeft == 0) break; |
| } |
| } |
| if (countLeft != 0) throw "Didn't find the expected number of identifiers"; |
| return identifiers ?? []; |
| } |
| } |
| |
| extension ClassFieldsExtension on ClassFieldsEnd { |
| List<IdentifierHandle> getFieldIdentifiers() { |
| int countLeft = count; |
| List<IdentifierHandle>? identifiers; |
| for (int i = children!.length - 1; i >= 0; i--) { |
| ParserAstNode child = children![i]; |
| if (child is IdentifierHandle && |
| child.context == IdentifierContext.fieldDeclaration) { |
| countLeft--; |
| if (identifiers == null) { |
| identifiers = new List<IdentifierHandle>.filled(count, child); |
| } else { |
| identifiers[countLeft] = child; |
| } |
| if (countLeft == 0) break; |
| } |
| } |
| if (countLeft != 0) throw "Didn't find the expected number of identifiers"; |
| return identifiers ?? []; |
| } |
| |
| TypeHandle? getFirstType() { |
| for (ParserAstNode child in children!) { |
| if (child is TypeHandle) return child; |
| } |
| return null; |
| } |
| |
| FieldInitializerEnd? getFieldInitializer() { |
| for (ParserAstNode child in children!) { |
| if (child is FieldInitializerEnd) return child; |
| } |
| return null; |
| } |
| } |
| |
| extension EnumExtension on EnumEnd { |
| List<IdentifierHandle> getIdentifiers() { |
| List<IdentifierHandle> ids = []; |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) ids.add(child); |
| } |
| return ids; |
| } |
| } |
| |
| extension ExtensionDeclarationExtension on ExtensionDeclarationEnd { |
| List<IdentifierHandle> getIdentifiers() { |
| List<IdentifierHandle> ids = []; |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) ids.add(child); |
| } |
| return ids; |
| } |
| } |
| |
| extension TopLevelMethodExtension on TopLevelMethodEnd { |
| IdentifierHandle getNameIdentifier() { |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| if (child.context == IdentifierContext.topLevelFunctionDeclaration) { |
| return child; |
| } |
| } |
| } |
| throw "Didn't find the name identifier!"; |
| } |
| } |
| |
| extension TypedefExtension on TypedefEnd { |
| IdentifierHandle getNameIdentifier() { |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| if (child.context == IdentifierContext.typedefDeclaration) { |
| return child; |
| } |
| } |
| } |
| throw "Didn't find the name identifier!"; |
| } |
| } |
| |
| extension ImportExtension on ImportEnd { |
| IdentifierHandle? getImportPrefix() { |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| if (child.context == IdentifierContext.importPrefixDeclaration) { |
| return child; |
| } |
| } |
| } |
| return null; |
| } |
| |
| String getImportUriString() { |
| StringBuffer sb = new StringBuffer(); |
| bool foundOne = false; |
| for (ParserAstNode child in children!) { |
| if (child is LiteralStringEnd) { |
| LiteralStringBegin uri = child.children!.single as LiteralStringBegin; |
| sb.write(unescapeString( |
| uri.token.lexeme, uri.token, const UnescapeErrorListenerDummy())); |
| foundOne = true; |
| } |
| } |
| if (!foundOne) throw "Didn't find any"; |
| return sb.toString(); |
| } |
| |
| List<String>? getConditionalImportUriStrings() { |
| List<String>? result; |
| for (ParserAstNode child in children!) { |
| if (child is ConditionalUrisEnd) { |
| for (ParserAstNode child2 in child.children!) { |
| if (child2 is ConditionalUriEnd) { |
| LiteralStringEnd end = child2.children!.last as LiteralStringEnd; |
| LiteralStringBegin uri = end.children!.single as LiteralStringBegin; |
| (result ??= []).add(unescapeString(uri.token.lexeme, uri.token, |
| const UnescapeErrorListenerDummy())); |
| } |
| } |
| return result; |
| } |
| } |
| return result; |
| } |
| } |
| |
| extension ExportExtension on ExportEnd { |
| String getExportUriString() { |
| StringBuffer sb = new StringBuffer(); |
| bool foundOne = false; |
| for (ParserAstNode child in children!) { |
| if (child is LiteralStringEnd) { |
| LiteralStringBegin uri = child.children!.single as LiteralStringBegin; |
| sb.write(unescapeString( |
| uri.token.lexeme, uri.token, const UnescapeErrorListenerDummy())); |
| foundOne = true; |
| } |
| } |
| if (!foundOne) throw "Didn't find any"; |
| return sb.toString(); |
| } |
| |
| List<String>? getConditionalExportUriStrings() { |
| List<String>? result; |
| for (ParserAstNode child in children!) { |
| if (child is ConditionalUrisEnd) { |
| for (ParserAstNode child2 in child.children!) { |
| if (child2 is ConditionalUriEnd) { |
| LiteralStringEnd end = child2.children!.last as LiteralStringEnd; |
| LiteralStringBegin uri = end.children!.single as LiteralStringBegin; |
| (result ??= []).add(unescapeString(uri.token.lexeme, uri.token, |
| const UnescapeErrorListenerDummy())); |
| } |
| } |
| return result; |
| } |
| } |
| return result; |
| } |
| } |
| |
| extension PartExtension on PartEnd { |
| String getPartUriString() { |
| StringBuffer sb = new StringBuffer(); |
| bool foundOne = false; |
| for (ParserAstNode child in children!) { |
| if (child is LiteralStringEnd) { |
| LiteralStringBegin uri = child.children!.single as LiteralStringBegin; |
| sb.write(unescapeString( |
| uri.token.lexeme, uri.token, const UnescapeErrorListenerDummy())); |
| foundOne = true; |
| } |
| } |
| if (!foundOne) throw "Didn't find any"; |
| return sb.toString(); |
| } |
| } |
| |
| extension PartOfExtension on PartOfEnd { |
| String? getPartOfUriString() { |
| StringBuffer sb = new StringBuffer(); |
| bool foundOne = false; |
| for (ParserAstNode child in children!) { |
| if (child is LiteralStringEnd) { |
| LiteralStringBegin uri = child.children!.single as LiteralStringBegin; |
| sb.write(unescapeString( |
| uri.token.lexeme, uri.token, const UnescapeErrorListenerDummy())); |
| foundOne = true; |
| } |
| } |
| if (!foundOne) return null; |
| return sb.toString(); |
| } |
| |
| List<String> getPartOfIdentifiers() { |
| List<String> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| result.add(child.token.lexeme); |
| } |
| } |
| return result; |
| } |
| } |
| |
| extension LibraryNameExtension on LibraryNameEnd { |
| List<String> getNameIdentifiers() { |
| List<String> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| result.add(child.token.lexeme); |
| } |
| } |
| return result; |
| } |
| } |
| |
| class UnescapeErrorListenerDummy implements UnescapeErrorListener { |
| const UnescapeErrorListenerDummy(); |
| |
| @override |
| void handleUnescapeError( |
| Message message, covariant location, int offset, int length) { |
| // Purposely doesn't do anything. |
| } |
| } |
| |
| extension TopLevelFieldsExtension on TopLevelFieldsEnd { |
| List<IdentifierHandle> getFieldIdentifiers() { |
| int countLeft = count; |
| List<IdentifierHandle>? identifiers; |
| for (int i = children!.length - 1; i >= 0; i--) { |
| ParserAstNode child = children![i]; |
| if (child is IdentifierHandle && |
| child.context == IdentifierContext.topLevelVariableDeclaration) { |
| countLeft--; |
| if (identifiers == null) { |
| identifiers = new List<IdentifierHandle>.filled(count, child); |
| } else { |
| identifiers[countLeft] = child; |
| } |
| if (countLeft == 0) break; |
| } |
| } |
| if (countLeft != 0) throw "Didn't find the expected number of identifiers"; |
| return identifiers ?? []; |
| } |
| } |
| |
| extension ClassMethodExtension on ClassMethodEnd { |
| BlockFunctionBodyEnd? getBlockFunctionBody() { |
| for (ParserAstNode child in children!) { |
| if (child is BlockFunctionBodyEnd) { |
| return child; |
| } |
| } |
| return null; |
| } |
| |
| String getNameIdentifier() { |
| bool foundType = false; |
| for (ParserAstNode child in children!) { |
| if (child is TypeHandle || |
| child is NoTypeHandle || |
| child is VoidKeywordHandle || |
| child is FunctionTypeEnd) { |
| foundType = true; |
| } |
| if (foundType && child is IdentifierHandle) { |
| return child.token.lexeme; |
| } else if (foundType && child is OperatorNameHandle) { |
| return child.token.lexeme; |
| } |
| } |
| throw "No identifier found: $children"; |
| } |
| } |
| |
| extension MixinMethodExtension on MixinMethodEnd { |
| String getNameIdentifier() { |
| bool foundType = false; |
| for (ParserAstNode child in children!) { |
| if (child is TypeHandle || |
| child is NoTypeHandle || |
| child is VoidKeywordHandle || |
| child is FunctionTypeEnd) { |
| foundType = true; |
| } |
| if (foundType && child is IdentifierHandle) { |
| return child.token.lexeme; |
| } else if (foundType && child is OperatorNameHandle) { |
| return child.token.lexeme; |
| } |
| } |
| throw "No identifier found: $children"; |
| } |
| } |
| |
| extension ExtensionMethodExtension on ExtensionMethodEnd { |
| String getNameIdentifier() { |
| bool foundType = false; |
| for (ParserAstNode child in children!) { |
| if (child is TypeHandle || |
| child is NoTypeHandle || |
| child is VoidKeywordHandle || |
| child is FunctionTypeEnd) { |
| foundType = true; |
| } |
| if (foundType && child is IdentifierHandle) { |
| return child.token.lexeme; |
| } else if (foundType && child is OperatorNameHandle) { |
| return child.token.lexeme; |
| } |
| } |
| throw "No identifier found: $children"; |
| } |
| } |
| |
| extension ClassFactoryMethodExtension on ClassFactoryMethodEnd { |
| List<IdentifierHandle> getIdentifiers() { |
| List<IdentifierHandle> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| result.add(child); |
| } else if (child is FormalParametersEnd) { |
| break; |
| } |
| } |
| return result; |
| } |
| } |
| |
| extension ClassConstructorExtension on ClassConstructorEnd { |
| FormalParametersEnd getFormalParameters() { |
| for (ParserAstNode child in children!) { |
| if (child is FormalParametersEnd) { |
| return child; |
| } |
| } |
| throw "Not found"; |
| } |
| |
| InitializersEnd? getInitializers() { |
| for (ParserAstNode child in children!) { |
| if (child is InitializersEnd) { |
| return child; |
| } |
| } |
| return null; |
| } |
| |
| BlockFunctionBodyEnd? getBlockFunctionBody() { |
| for (ParserAstNode child in children!) { |
| if (child is BlockFunctionBodyEnd) { |
| return child; |
| } |
| } |
| return null; |
| } |
| |
| List<IdentifierHandle> getIdentifiers() { |
| List<IdentifierHandle> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is IdentifierHandle) { |
| result.add(child); |
| } |
| } |
| return result; |
| } |
| } |
| |
| extension FormalParametersExtension on FormalParametersEnd { |
| List<FormalParameterEnd> getFormalParameters() { |
| List<FormalParameterEnd> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is FormalParameterEnd) { |
| result.add(child); |
| } |
| } |
| return result; |
| } |
| |
| OptionalFormalParametersEnd? getOptionalFormalParameters() { |
| for (ParserAstNode child in children!) { |
| if (child is OptionalFormalParametersEnd) { |
| return child; |
| } |
| } |
| return null; |
| } |
| } |
| |
| extension FormalParameterExtension on FormalParameterEnd { |
| FormalParameterBegin getBegin() { |
| return children!.first as FormalParameterBegin; |
| } |
| } |
| |
| extension OptionalFormalParametersExtension on OptionalFormalParametersEnd { |
| List<FormalParameterEnd> getFormalParameters() { |
| List<FormalParameterEnd> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is FormalParameterEnd) { |
| result.add(child); |
| } |
| } |
| return result; |
| } |
| } |
| |
| extension InitializersExtension on InitializersEnd { |
| List<InitializerEnd> getInitializers() { |
| List<InitializerEnd> result = []; |
| for (ParserAstNode child in children!) { |
| if (child is InitializerEnd) { |
| result.add(child); |
| } |
| } |
| return result; |
| } |
| |
| InitializersBegin getBegin() { |
| return children!.first as InitializersBegin; |
| } |
| } |
| |
| extension InitializerExtension on InitializerEnd { |
| InitializerBegin getBegin() { |
| return children!.first as InitializerBegin; |
| } |
| } |
| |
| void main(List<String> args) { |
| File f = new File(args[0]); |
| Uint8List data = f.readAsBytesSync(); |
| ParserAstNode ast = getAST(data); |
| if (args.length > 1 && args[1] == "--benchmark") { |
| Stopwatch stopwatch = new Stopwatch()..start(); |
| int numRuns = 100; |
| for (int i = 0; i < numRuns; i++) { |
| ParserAstNode ast2 = getAST(data); |
| if (ast.what != ast2.what) { |
| throw "Not the same result every time"; |
| } |
| } |
| stopwatch.stop(); |
| print("First $numRuns took ${stopwatch.elapsedMilliseconds} ms " |
| "(i.e. ${stopwatch.elapsedMilliseconds / numRuns}ms/iteration)"); |
| stopwatch = new Stopwatch()..start(); |
| numRuns = 2500; |
| for (int i = 0; i < numRuns; i++) { |
| ParserAstNode ast2 = getAST(data); |
| if (ast.what != ast2.what) { |
| throw "Not the same result every time"; |
| } |
| } |
| stopwatch.stop(); |
| print("Next $numRuns took ${stopwatch.elapsedMilliseconds} ms " |
| "(i.e. ${stopwatch.elapsedMilliseconds / numRuns}ms/iteration)"); |
| } else { |
| print(ast); |
| } |
| } |
| |
| class ParserASTListener extends AbstractParserAstListener { |
| @override |
| void seen(ParserAstNode entry) { |
| switch (entry.type) { |
| case ParserAstType.BEGIN: |
| case ParserAstType.HANDLE: |
| // This just adds stuff. |
| data.add(entry); |
| break; |
| case ParserAstType.END: |
| // End should gobble up everything until the corresponding begin (which |
| // should be the latest begin). |
| int? beginIndex; |
| for (int i = data.length - 1; i >= 0; i--) { |
| if (data[i].type == ParserAstType.BEGIN) { |
| beginIndex = i; |
| break; |
| } |
| } |
| if (beginIndex == null) { |
| throw "Couldn't find a begin for ${entry.what}. Has:\n" |
| "${data.map((e) => "${e.what}: ${e.type}").join("\n")}"; |
| } |
| String begin = data[beginIndex].what; |
| String end = entry.what; |
| if (begin == end) { |
| // Exact match. |
| } else if (end == "TopLevelDeclaration" && |
| (begin == "ExtensionDeclarationPrelude" || |
| begin == "ClassOrMixinOrNamedMixinApplicationPrelude" || |
| begin == "TopLevelMember" || |
| begin == "UncategorizedTopLevelDeclaration")) { |
| // endTopLevelDeclaration is started by one of |
| // beginExtensionDeclarationPrelude, |
| // beginClassOrNamedMixinApplicationPrelude |
| // beginTopLevelMember or beginUncategorizedTopLevelDeclaration. |
| } else if (begin == "Method" && |
| (end == "ClassConstructor" || |
| end == "ClassMethod" || |
| end == "ExtensionConstructor" || |
| end == "ExtensionMethod" || |
| end == "ExtensionTypeConstructor" || |
| end == "ExtensionTypeMethod" || |
| end == "MixinConstructor" || |
| end == "MixinMethod" || |
| end == "EnumConstructor" || |
| end == "EnumMethod")) { |
| // beginMethod is ended by one of endClassConstructor, |
| // endClassMethod, endExtensionMethod, endMixinConstructor, |
| // endMixinMethod, endEnumMethod or endEnumConstructor. |
| } else if (begin == "Fields" && |
| (end == "TopLevelFields" || |
| end == "ClassFields" || |
| end == "MixinFields" || |
| end == "ExtensionFields" || |
| end == "ExtensionTypeFields" || |
| end == "EnumFields")) { |
| // beginFields is ended by one of endTopLevelFields, endMixinFields, |
| // endEnumFields or endExtensionFields. |
| } else if (begin == "ForStatement" && end == "ForIn") { |
| // beginForStatement is ended by either endForStatement or endForIn. |
| } else if (begin == "FactoryMethod" && |
| (end == "ClassFactoryMethod" || |
| end == "MixinFactoryMethod" || |
| end == "ExtensionFactoryMethod" || |
| end == "ExtensionTypeFactoryMethod" || |
| end == "EnumFactoryMethod")) { |
| // beginFactoryMethod is ended by either endClassFactoryMethod, |
| // endMixinFactoryMethod, endExtensionFactoryMethod, or |
| // endEnumFactoryMethod. |
| } else if (begin == "ForControlFlow" && (end == "ForInControlFlow")) { |
| // beginForControlFlow is ended by either endForControlFlow or |
| // endForInControlFlow. |
| } else if (begin == "IfControlFlow" && (end == "IfElseControlFlow")) { |
| // beginIfControlFlow is ended by either endIfControlFlow or |
| // endIfElseControlFlow. |
| } else if (begin == "AwaitExpression" && |
| (end == "InvalidAwaitExpression")) { |
| // beginAwaitExpression is ended by either endAwaitExpression or |
| // endInvalidAwaitExpression. |
| } else if (begin == "YieldStatement" && |
| (end == "InvalidYieldStatement")) { |
| // beginYieldStatement is ended by either endYieldStatement or |
| // endInvalidYieldStatement. |
| } else if (begin == "ParenthesizedExpressionOrRecordLiteral" && |
| (end == "ParenthesizedExpression" || end == "RecordLiteral")) { |
| // beginParenthesizedExpressionOrRecordLiteral is ended by either |
| // endParenthesizedExpression or endRecordLiteral. |
| } else { |
| throw "Unknown combination: begin$begin and end$end"; |
| } |
| List<ParserAstNode> children = data.sublist(beginIndex); |
| for (ParserAstNode child in children) { |
| child.parent = entry; |
| } |
| data.length = beginIndex; |
| data.add(entry..children = children); |
| break; |
| } |
| } |
| |
| @override |
| void reportVarianceModifierNotEnabled(Token? variance) { |
| throw new UnimplementedError(); |
| } |
| |
| @override |
| Uri get uri => throw new UnimplementedError(); |
| |
| @override |
| void logEvent(String name) { |
| throw new UnimplementedError(); |
| } |
| } |
