Removed compiler/ directory from repository

dart/compiler/java/com/google/dart/compiler/parser/DartScannerParserContext.java

Index: dart/compiler/java/com/google/dart/compiler/parser/DartScannerParserContext.java
diff --git a/dart/compiler/java/com/google/dart/compiler/parser/DartScannerParserContext.java b/dart/compiler/java/com/google/dart/compiler/parser/DartScannerParserContext.java
deleted file mode 100644
index e40bb4c2d089bca7315e12f5195be2b6548c87dc..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/parser/DartScannerParserContext.java
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright (c) 2012, 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.
-
-package com.google.dart.compiler.parser;
-
-import com.google.dart.compiler.DartCompilationError;
-import com.google.dart.compiler.DartCompilerListener;
-import com.google.dart.compiler.DartSource;
-import com.google.dart.compiler.Source;
-import com.google.dart.compiler.ast.DartUnit;
-import com.google.dart.compiler.common.HasSourceInfo;
-import com.google.dart.compiler.common.HasSourceInfoSetter;
-import com.google.dart.compiler.common.SourceInfo;
-import com.google.dart.compiler.metrics.CompilerMetrics;
-import com.google.dart.compiler.parser.DartScanner.Location;
-import com.google.dart.compiler.parser.DartScanner.State;
-
-import java.util.ArrayDeque;
-import java.util.Deque;
-import java.util.Stack;
-
-/**
- * A ParserContext backed by a DartScanner.
- */
-class DartScannerParserContext implements ParserContext {
-  private DartScanner scanner;
-  private Deque<DartScanner.State> stateStack = new ArrayDeque<DartScanner.State>();
-  private Deque<Integer> positionStack = new ArrayDeque<Integer>();
-  private Source source;
-  private DartCompilerListener listener;
-  private final CompilerMetrics compilerMetrics;
-
-  public DartScannerParserContext(Source source, String sourceCode,
-      DartCompilerListener listener) {
-    this(source, sourceCode, listener, null);
-  }
-
-  public DartScannerParserContext(Source source, String sourceCode,
-      DartCompilerListener listener, CompilerMetrics compilerMetrics) {
-    this.source = source;
-    this.scanner = createScanner(sourceCode, source, listener);
-    this.listener = listener;
-    this.compilerMetrics = compilerMetrics;
-  }
-
-  @Override
-  public void begin() {
-    stateStack.push(scanner.getState());
-    positionStack.push(getBeginLocation(0));
-  }
-
-  private int getBeginLocation(int n) {
-    DartScanner.Location tokenLocation = scanner.peekTokenLocation(n);
-    return tokenLocation != null ? tokenLocation.getBegin() : 0;
-  }
-
-  private int getEndLocation() {
-    DartScanner.Location tokenLocation = scanner.getTokenLocation();
-    return tokenLocation != null ? tokenLocation.getEnd() : 0;
-  }
-
-  @Override
-  public <T> T done(T result) {
-    DartScanner.State oldState = stateStack.pop();
-    DartScanner.State newState = stateStack.peek();
-
-    // If there is more state left, push the newer token changes to them.
-    if (newState != null) {
-      if (oldState.rollbackTokens != null) {
-        if (newState.rollbackTokens != null) {
-          oldState.rollbackTokens.addAll(newState.rollbackTokens);
-        }
-        newState.rollbackTokens = oldState.rollbackTokens;
-      }
-    }
-
-    setSourcePosition(result, positionStack.pop());
-
-    if (result instanceof DartUnit) {
-      if (compilerMetrics != null) {
-        compilerMetrics.unitParsed(scanner.getCharCount(), scanner.getNonCommentCharCount(),
-            0, 0);
-      }
-    }
-
-    // want next begin() call to seek to the next token and skip whitespace after previous done()
-    return result;
-  }
-
-  /**
-   * Set the source position on a result, if it is a {@link HasSourceInfo}.
-   *
-   * @param <T> result type
-   * @param result
-   * @param startPos
-   */
-  private <T> void setSourcePosition(T result, int startPos) {
-    if (result instanceof HasSourceInfoSetter) {
-      HasSourceInfoSetter hasSourceInfoSetter = (HasSourceInfoSetter) result;
-      int start = startPos;
-      int end = getEndLocation();
-      if (start != -1 && end < start) {
-        // handle 0-length tokens, including where there is trailing whitespace
-        end = start;
-      }
-      hasSourceInfoSetter.setSourceInfo(new SourceInfo(source, start, end - start));
-    }
-  }
-
-  @Override
-  public <T> T doneWithoutConsuming(T result) {
-    // do not throw away state
-    setSourcePosition(result, positionStack.peek());
-
-    // want next begin() call to seek to the next token and skip whitespace after previous done()
-    return result;
-  }
-
-  @Override
-  public void error(DartCompilationError dartError) {
-    listener.onError(dartError);
-  }
-  
-  @Override
-  public void unitAboutToCompile(DartSource source, boolean diet) {
-    listener.unitAboutToCompile(source, diet);
-  }
-
-  @Override
-  public void advance() {
-    scanner.next();
-  }
-
-  @Override
-  public Token getCurrentToken() {
-    return scanner.getToken();
-  }
-
-  @Override
-  public Token peek(int steps) {
-    return scanner.peek(steps);
-  }
-
-  @Override
-  public void rollback() {
-    // undo changes made to scanner tokens
-    DartScanner.State oldState = stateStack.pop();
-    scanner.restoreState(oldState);
-
-    // Restore the replaced tokens to their state.
-    if (oldState.rollbackTokens != null) {
-      while (!oldState.rollbackTokens.isEmpty()) {
-        State.RollbackToken token = oldState.rollbackTokens.pop();
-        scanner.setAbsolutePeek(token.absoluteOffset, token.replacedToken);
-      }
-    }
-    positionStack.pop();
-  }
-
-  @Override
-  public String getTokenString() {
-    return scanner.getTokenValue();
-  }
-
-  @Override
-  public Location peekTokenLocation(int n) {
-    return scanner.peekTokenLocation(n);
-  }
-
-  @Override
-  public String peekTokenString(int steps) {
-    return scanner.peekTokenValue(steps);
-  }
-
-  @Override
-  public void replaceNextToken(Token token) {
-    DartScanner.State state = stateStack.peek();
-    DartScanner.State.RollbackToken oldToken
-      = new DartScanner.State.RollbackToken(scanner.getOffset() + 1, scanner.peek(0));
-    if (state.rollbackTokens == null) {
-      state.rollbackTokens = new Stack<State.RollbackToken>();
-    }
-    state.rollbackTokens.push(oldToken);
-    scanner.setPeek(0, token);
-  }
-
-  @Override
-  public DartScanner.Location getTokenLocation() {
-    return scanner.getTokenLocation();
-  }
-
-  protected DartScanner createScanner(String sourceCode, Source source, DartCompilerListener listener) {
-    return new DartScanner(sourceCode, 0, source, listener);
-  }
-
-  @Override
-  public Source getSource() {
-    return source;
-  }
-}