Remove service-compiler related code.

pkg/servicec/lib/listener.dart

-// Copyright (c) 2015, the Dartino 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.
-
-library servicec.listener;
-
-import 'package:compiler/src/tokens/token.dart' show
-    ErrorToken,
-    Token;
-
-import 'errors.dart' show
-    ErrorTag;
-
-/// Identity listener: methods just propagate the argument.
-abstract class Listener {
-  Token beginCompilationUnit(Token tokens) {
-    return tokens;
-  }
-
-  Token endCompilationUnit(Token tokens, int count) {
-    return tokens;
-  }
-
-  Token beginTopLevel(Token tokens) {
-    return tokens;
-  }
-
-  Token endTopLevel(Token tokens) {
-    return tokens;
-  }
-
-  Token beginService(Token tokens) {
-    return tokens;
-  }
-
-  Token endService(Token tokens, int count) {
-    return tokens;
-  }
-
-  Token beginStruct(Token tokens) {
-    return tokens;
-  }
-
-  Token endStruct(Token tokens, int count) {
-    return tokens;
-  }
-
-  Token handleIdentifier(Token tokens) {
-    return tokens;
-  }
-
-  Token beginFunction(Token tokens) {
-    return tokens;
-  }
-
-  Token endFunction(Token tokens, int count) {
-    return tokens;
-  }
-
-  Token beginUnion(Token tokens) {
-    return tokens;
-  }
-
-  Token endUnion(Token tokens, int count) {
-    return tokens;
-  }
-
-  Token beginField(Token tokens) {
-    return tokens;
-  }
-
-  Token endField(Token tokens) {
-    return tokens;
-  }
-
-  Token beginType(Token tokens) {
-    return tokens;
-  }
-
-  Token endType(Token tokens) {
-    return tokens;
-  }
-
-  Token handleSimpleType(Token tokens) {
-    return tokens;
-  }
-
-  Token handlePointerType(Token tokens) {
-    return tokens;
-  }
-
-  Token handleListType(Token tokens) {
-    return tokens;
-  }
-
-  Token beginFormal(Token tokens) {
-    return tokens;
-  }
-
-  Token endFormal(Token tokens) {
-    return tokens;
-  }
-
-  Token expectedTopLevel(Token tokens);
-
-  Token expectedIdentifier(Token tokens);
-
-  Token expectedType(Token tokens);
-
-  Token expected(String string, Token tokens);
-}
-
-enum LogLevel { DEBUG, INFO }
-
-/// Used for debugging other listeners.
-class DebugListener implements Listener {
-  Listener debugSubject;
-  LogLevel logLevel;
-  int scope;
-
-  DebugListener(this.debugSubject, [this.logLevel = LogLevel.DEBUG])
-    : scope = 0;
-
-  void beginScope() { ++scope; }
-  void endScope() { --scope; }
-
-  void log(String string) {
-    print("${"  " * scope}$string");
-  }
-
-  void logBeginScope(String nodeName) {
-    String prefix = logLevel == LogLevel.INFO ? "begin " : "";
-    log("$prefix$nodeName");
-    beginScope();
-  }
-
-  void logEndScope(String nodeName, [String summary = ""]) {
-    if (logLevel == LogLevel.DEBUG) {
-      if (summary != "") log("$summary");
-      endScope();
-    } else {
-      endScope();
-      log("end $nodeName; $summary");
-    }
-  }
-
-  Token beginCompilationUnit(Token tokens) {
-    logBeginScope("unit");
-    return debugSubject.beginCompilationUnit(tokens);
-  }
-
-  Token endCompilationUnit(Token tokens, int count) {
-    logEndScope("unit", "top-level declarations count = $count");
-    return debugSubject.endCompilationUnit(tokens, count);
-  }
-
-  Token beginTopLevel(Token tokens) {
-    logBeginScope("top-level declaration");
-    return debugSubject.beginTopLevel(tokens);
-  }
-
-  Token endTopLevel(Token tokens) {
-    logEndScope("top-level declaration");
-    return debugSubject.endTopLevel(tokens);
-  }
-
-  Token beginService(Token tokens) {
-    logBeginScope("service");
-    return debugSubject.beginService(tokens);
-  }
-
-  Token endService(Token tokens, int count) {
-    logEndScope("service", "functions count = $count");
-    return debugSubject.endService(tokens, count);
-  }
-
-  Token beginStruct(Token tokens) {
-    logBeginScope("struct");
-    return debugSubject.beginStruct(tokens);
-  }
-
-  Token endStruct(Token tokens, int count) {
-    logEndScope("struct", "fields count = $count");
-    return debugSubject.endStruct(tokens, count);
-  }
-
-  Token handleIdentifier(Token tokens) {
-    bool valid = tokens is! ErrorToken && tokens != null;
-    String identifierValue = valid ? " [${tokens.value}]" : "";
-    log("indentifier$identifierValue");
-    return debugSubject.handleIdentifier(tokens);
-  }
-
-  Token beginFunction(Token tokens) {
-    logBeginScope("function");
-    return debugSubject.beginFunction(tokens);
-  }
-
-  Token endFunction(Token tokens, int count) {
-    logEndScope("function", "formal parameters count = $count");
-    return debugSubject.endFunction(tokens, count);
-  }
-
-  Token beginUnion(Token tokens) {
-    logBeginScope("union");
-    return debugSubject.beginUnion(tokens);
-  }
-
-  Token endUnion(Token tokens, int count) {
-    logEndScope("union", "fields count = $count");
-    return debugSubject.endUnion(tokens, count);
-  }
-
-  Token beginField(Token tokens) {
-    logBeginScope("field");
-    return debugSubject.beginField(tokens);
-  }
-
-  Token endField(Token tokens) {
-    logEndScope("field");
-    return debugSubject.endField(tokens);
-  }
-
-  Token beginType(Token tokens) {
-    logBeginScope("type");
-    return debugSubject.beginType(tokens);
-  }
-
-  Token endType(Token tokens) {
-    logEndScope("type");
-    return debugSubject.endType(tokens);
-  }
-
-  Token handleSimpleType(Token tokens) {
-    log("Simple type");
-    return debugSubject.handleSimpleType(tokens);
-  }
-
-  Token handlePointerType(Token tokens) {
-    log("Pointer type");
-    return debugSubject.handlePointerType(tokens);
-  }
-
-  Token handleListType(Token tokens) {
-    log("List type");
-    return debugSubject.handleListType(tokens);
-  }
-
-  Token beginFormal(Token tokens) {
-    logBeginScope("formal parameter");
-    return debugSubject.beginFormal(tokens);
-  }
-
-  Token endFormal(Token tokens) {
-    logEndScope("formal parameter");
-    return debugSubject.endFormal(tokens);
-  }
-
-  Token expectedTopLevel(Token tokens) {
-    log("error: $tokens is not a top-level declaration");
-    return debugSubject.expectedTopLevel(tokens);
-  }
-
-  Token expectedIdentifier(Token tokens) {
-    log("error: $tokens is not an identifier");
-    return debugSubject.expectedIdentifier(tokens);
-  }
-
-  Token expectedType(Token tokens) {
-    log("error: $tokens is not a type");
-    return debugSubject.expectedType(tokens);
-  }
-
-  Token expected(String string, Token tokens) {
-    log("error: $tokens is not the symbol $string");
-    return debugSubject.expected(string, tokens);
-  }
-}