| // 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. |
| |
| // @dart=2.9 |
| |
| import 'dart:io'; |
| import 'dart:typed_data'; |
| |
| import 'package:_fe_analyzer_shared/src/parser/parser.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/formal_parameter_kind.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/listener.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/member_kind.dart'; |
| import 'package:_fe_analyzer_shared/src/scanner/utf8_bytes_scanner.dart'; |
| import 'package:_fe_analyzer_shared/src/scanner/token.dart'; |
| import 'package:dart_style/dart_style.dart' show DartFormatter; |
| |
| StringSink out; |
| |
| main(List<String> args) { |
| if (args.contains("--stdout")) { |
| out = stdout; |
| } else { |
| out = new StringBuffer(); |
| } |
| |
| File f = new File.fromUri(Platform.script |
| .resolve("../../../_fe_analyzer_shared/lib/src/parser/listener.dart")); |
| List<int> rawBytes = f.readAsBytesSync(); |
| |
| Uint8List bytes = new Uint8List(rawBytes.length + 1); |
| bytes.setRange(0, rawBytes.length, rawBytes); |
| |
| Utf8BytesScanner scanner = new Utf8BytesScanner(bytes, includeComments: true); |
| Token firstToken = scanner.tokenize(); |
| |
| out.write(r""" |
| // 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 'package:_fe_analyzer_shared/src/parser/assert.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/block_kind.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/declaration_kind.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/formal_parameter_kind.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/identifier_context.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/listener.dart'; |
| import 'package:_fe_analyzer_shared/src/parser/member_kind.dart'; |
| import 'package:_fe_analyzer_shared/src/scanner/error_token.dart'; |
| import 'package:_fe_analyzer_shared/src/scanner/token.dart'; |
| import 'package:front_end/src/fasta/messages.dart'; |
| |
| // ignore_for_file: lines_longer_than_80_chars |
| |
| // THIS FILE IS AUTO GENERATED BY |
| // 'tool/_fasta/direct_parser_ast_helper_creator.dart' |
| // Run e.g. |
| /* |
| out/ReleaseX64/dart \ |
| pkg/front_end/tool/_fasta/direct_parser_ast_helper_creator.dart \ |
| > pkg/front_end/lib/src/fasta/util/direct_parser_ast_helper.dart |
| */ |
| |
| abstract class DirectParserASTContent { |
| final String what; |
| final DirectParserASTType type; |
| Map<String, Object> get deprecatedArguments; |
| List<DirectParserASTContent> children; |
| |
| DirectParserASTContent(this.what, this.type); |
| |
| // TODO(jensj): Compare two ASTs. |
| } |
| |
| enum DirectParserASTType { BEGIN, END, HANDLE } |
| |
| abstract class AbstractDirectParserASTListener implements Listener { |
| List<DirectParserASTContent> data = []; |
| |
| void seen(DirectParserASTContent entry); |
| |
| """); |
| |
| ParserCreatorListener listener = new ParserCreatorListener(); |
| ClassMemberParser parser = new ClassMemberParser(listener); |
| parser.parseUnit(firstToken); |
| |
| out.writeln("}"); |
| out.writeln(""); |
| out.write(listener.newClasses.toString()); |
| |
| if (out is StringBuffer) { |
| String text = new DartFormatter().format("$out"); |
| if (args.isNotEmpty) { |
| new File(args.first).writeAsStringSync(text); |
| } else { |
| stdout.write(text); |
| } |
| } |
| } |
| |
| class ParserCreatorListener extends Listener { |
| bool insideListenerClass = false; |
| String currentMethodName; |
| String latestSeenParameterTypeToken; |
| List<String> parameters = <String>[]; |
| List<String> parameterTypes = <String>[]; |
| StringBuffer newClasses = new StringBuffer(); |
| |
| void beginClassDeclaration(Token begin, Token abstractToken, Token name) { |
| if (name.lexeme == "Listener") insideListenerClass = true; |
| } |
| |
| void endClassDeclaration(Token beginToken, Token endToken) { |
| insideListenerClass = false; |
| } |
| |
| void beginMethod(Token externalToken, Token staticToken, Token covariantToken, |
| Token varFinalOrConst, Token getOrSet, Token name) { |
| currentMethodName = name.lexeme; |
| } |
| |
| void endClassMethod(Token getOrSet, Token beginToken, Token beginParam, |
| Token beginInitializers, Token endToken) { |
| void end() { |
| parameters.clear(); |
| parameterTypes.clear(); |
| currentMethodName = null; |
| } |
| |
| if (insideListenerClass && |
| (currentMethodName.startsWith("begin") || |
| currentMethodName.startsWith("end") || |
| currentMethodName.startsWith("handle"))) { |
| StringBuffer sb = new StringBuffer(); |
| sb.write(" "); |
| Token token = beginToken; |
| Token latestToken; |
| while (true) { |
| if (latestToken != null && latestToken.charEnd < token.charOffset) { |
| sb.write(" "); |
| } |
| sb.write(token.lexeme); |
| if ((token is BeginToken && |
| token.type == TokenType.OPEN_CURLY_BRACKET) || |
| token is SimpleToken && token.type == TokenType.FUNCTION) { |
| break; |
| } |
| if (token == endToken) { |
| throw token.runtimeType; |
| } |
| latestToken = token; |
| token = token.next; |
| } |
| |
| if (token is SimpleToken && token.type == TokenType.FUNCTION) { |
| return end(); |
| } else { |
| sb.write("\n "); |
| String typeString; |
| String typeStringCamel; |
| String name; |
| if (currentMethodName.startsWith("begin")) { |
| typeString = "BEGIN"; |
| typeStringCamel = "Begin"; |
| name = currentMethodName.substring("begin".length); |
| } else if (currentMethodName.startsWith("end")) { |
| typeString = "END"; |
| typeStringCamel = "End"; |
| name = currentMethodName.substring("end".length); |
| } else if (currentMethodName.startsWith("handle")) { |
| typeString = "HANDLE"; |
| typeStringCamel = "Handle"; |
| name = currentMethodName.substring("handle".length); |
| } else { |
| throw "Unexpected."; |
| } |
| |
| String className = "DirectParserASTContent${name}${typeStringCamel}"; |
| sb.write("$className data = new $className("); |
| sb.write("DirectParserASTType."); |
| sb.write(typeString); |
| for (int i = 0; i < parameters.length; i++) { |
| sb.write(', '); |
| sb.write(parameters[i]); |
| sb.write(': '); |
| sb.write(parameters[i]); |
| } |
| |
| sb.write(");"); |
| sb.write("\n "); |
| sb.write("seen(data);"); |
| sb.write("\n "); |
| |
| newClasses |
| .write("class DirectParserASTContent${name}${typeStringCamel} " |
| "extends DirectParserASTContent {\n"); |
| |
| for (int i = 0; i < parameters.length; i++) { |
| newClasses.write(" final "); |
| newClasses.write(parameterTypes[i]); |
| newClasses.write(' '); |
| newClasses.write(parameters[i]); |
| newClasses.write(';\n'); |
| } |
| newClasses.write('\n'); |
| newClasses.write(" DirectParserASTContent${name}${typeStringCamel}" |
| "(DirectParserASTType type"); |
| String separator = ", {"; |
| for (int i = 0; i < parameters.length; i++) { |
| newClasses.write(separator); |
| newClasses.write('this.'); |
| newClasses.write(parameters[i]); |
| separator = ", "; |
| } |
| if (parameters.isNotEmpty) { |
| newClasses.write('}'); |
| } |
| newClasses.write(') : super("$name", type);\n\n'); |
| newClasses.write("Map<String, Object> get deprecatedArguments => {"); |
| for (int i = 0; i < parameters.length; i++) { |
| newClasses.write('"'); |
| newClasses.write(parameters[i]); |
| newClasses.write('": '); |
| newClasses.write(parameters[i]); |
| newClasses.write(','); |
| } |
| newClasses.write("};\n"); |
| newClasses.write("}\n"); |
| } |
| |
| sb.write("}"); |
| sb.write("\n\n"); |
| |
| out.write(sb.toString()); |
| } |
| end(); |
| } |
| |
| @override |
| void handleNoType(Token lastConsumed) { |
| latestSeenParameterTypeToken = null; |
| } |
| |
| void handleType(Token beginToken, Token questionMark) { |
| latestSeenParameterTypeToken = beginToken.lexeme; |
| } |
| |
| void endFormalParameter( |
| Token thisKeyword, |
| Token periodAfterThis, |
| Token nameToken, |
| Token initializerStart, |
| Token initializerEnd, |
| FormalParameterKind kind, |
| MemberKind memberKind) { |
| parameters.add(nameToken.lexeme); |
| parameterTypes.add(latestSeenParameterTypeToken); |
| } |
| } |