Removed compiler/ directory from repository

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

Index: dart/compiler/java/com/google/dart/compiler/parser/DartParserCommentsHelper.java
diff --git a/dart/compiler/java/com/google/dart/compiler/parser/DartParserCommentsHelper.java b/dart/compiler/java/com/google/dart/compiler/parser/DartParserCommentsHelper.java
deleted file mode 100644
index 46654c3a76a7c9fa8f8cfefa5db8ccfa00577418..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/parser/DartParserCommentsHelper.java
+++ /dev/null
@@ -1,289 +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.common.collect.Lists;
-import com.google.dart.compiler.DartCompilerListener;
-import com.google.dart.compiler.Source;
-import com.google.dart.compiler.ast.ASTVisitor;
-import com.google.dart.compiler.ast.DartComment;
-import com.google.dart.compiler.ast.DartCommentNewName;
-import com.google.dart.compiler.ast.DartCommentRefName;
-import com.google.dart.compiler.ast.DartDeclaration;
-import com.google.dart.compiler.ast.DartField;
-import com.google.dart.compiler.ast.DartMethodDefinition;
-import com.google.dart.compiler.ast.DartNode;
-import com.google.dart.compiler.ast.DartUnit;
-import com.google.dart.compiler.common.SourceInfo;
-import com.google.dart.compiler.metrics.CompilerMetrics;
-import com.google.dart.compiler.util.apache.StringUtils;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-/**
- * A parser for Dart that records comment positions.
- */
-public class DartParserCommentsHelper {
-
-  static class CommentParserContext extends DartScannerParserContext {
-
-    private List<int[]> commentLocs;
-
-    CommentParserContext(Source source, String code, DartCompilerListener listener,
-        CompilerMetrics metrics) {
-      super(source, code, listener, metrics);
-    }
-
-    List<int[]> getCommentLocs() {
-      return commentLocs;
-    }
-
-    @Override
-    protected DartScanner createScanner(String sourceCode, Source source,
-        DartCompilerListener listener) {
-      commentLocs = Lists.newArrayList();
-      return new CommentScanner(sourceCode, 0, source, listener);
-    }
-
-    private class CommentScanner extends DartScanner {
-
-      CommentScanner(String sourceCode, int start, Source sourceReference,
-          DartCompilerListener listener) {
-        super(sourceCode, start, sourceReference, listener);
-      }
-
-      @Override
-      protected void recordCommentLocation(int start, int stop) {
-        int size = commentLocs.size();
-        if (size > 0) {
-          // the parser may re-scan lookahead tokens
-          // fortunately, comments are always scanned as comments
-          int[] loc = commentLocs.get(size - 1);
-          if (start <= loc[0] && stop <= loc[1]) {
-            return;
-          }
-        }
-        commentLocs.add(new int[] {start, stop});
-      }
-    }
-  }
-
-  static void addComments(DartUnit unit, Source source, String sourceCode, List<int[]> commentLocs) {
-    for (int[] loc : commentLocs) {
-      int start = loc[0];
-      int length = loc[1] - start;
-      DartComment.Style style = getCommentStyle(sourceCode, start);
-      unit.getComments().add(new DartComment(source, start, length, style));
-    }
-    List<DartComment> comments = unit.getComments();
-    if (comments != null) {
-      assignDartComments(unit, sourceCode, comments);
-    }
-  }
-
-  private static void assignDartComments(DartUnit unit, String sourceCode,
-      List<DartComment> comments) {
-    // Collect the AST nodes in a list.
-    final List<DartNode> astNodes = new ArrayList<DartNode>();
-    unit.accept(new ASTVisitor<DartNode>() {
-      @Override
-      public DartNode visitDeclaration(DartDeclaration<?> node) {
-        astNodes.add(node);
-        // Avoid NPE in visitors because of missing part. 
-        try {
-          super.visitDeclaration(node);
-        } catch (NullPointerException e) {
-        }
-        // No result.
-        return null;
-      }
-    });
-
-    // Collect all the nodes in one list.
-    List<DartNode> nodes = new ArrayList<DartNode>();
-
-    nodes.addAll(comments);
-    nodes.addAll(astNodes);
-
-    // Sort the nodes by their position in the source file.
-    Collections.sort(nodes, new Comparator<DartNode>() {
-      @Override
-      public int compare(DartNode node1, DartNode node2) {
-        return node1.getSourceInfo().getOffset() - node2.getSourceInfo().getOffset();
-      }
-    });
-
-    // Assign dart docs to their associated DartDeclarations.
-    for (int i = 0; i < nodes.size(); i++) {
-      DartNode node = nodes.get(i);
-      if (node instanceof DartComment) {
-        DartComment comment = (DartComment) node;
-        // prepare next declaration
-        DartDeclaration<?> decl = null;
-        {
-          int delta = 1;
-          while (i + delta < nodes.size()) {
-            DartNode next = nodes.get(i + delta);
-            // skip all comments
-            if (next instanceof DartComment) {
-              delta++;
-              continue;
-            }
-            // declaration found
-            if (next instanceof DartDeclaration) {
-              decl = (DartDeclaration<?>) next;
-              if (!commentContainedBySibling(comment, decl)) {
-                if (i + 2 < nodes.size()) {
-                  decl = adjustDartdocTarget(next, nodes.get(i + 2));
-                }
-              }
-              break;
-            }
-            // something other than declaration
-            break;
-          }
-        }
-        // apply comment to declaration
-        if (decl != null) {
-          String commentStr = sourceCode.substring(comment.getSourceInfo().getOffset(),
-              comment.getSourceInfo().getEnd());
-          tokenizeComment(comment, commentStr);
-          // DartDoc
-          if (comment.isDartDoc()) {
-            decl.setDartDoc(comment);
-          }
-        }
-      }
-    }
-  }
-
-  private static void tokenizeComment(DartComment comment, String src) {
-    int lastIndex = 0;
-    while (true) {
-      int openIndex = src.indexOf('[', lastIndex);
-      if (openIndex == -1) {
-        break;
-      }
-      int closeIndex = src.indexOf(']', openIndex);
-      if (closeIndex == -1) {
-        break;
-      }
-      lastIndex = closeIndex;
-      String tokenSrc = src.substring(openIndex + 1, closeIndex);
-      if (tokenSrc.startsWith(":") && tokenSrc.endsWith(":")) {
-        // TODO(scheglov) [:code:] and 'code'
-      } else if (tokenSrc.startsWith("new ")) {
-        SourceInfo sourceInfo = comment.getSourceInfo();
-        int offset = sourceInfo.getOffset() + openIndex;
-        int classOffset = offset + "[".length();
-        // remove leading "new "
-        String name = StringUtils.remove(tokenSrc, "new ");
-        classOffset += "new ".length();
-        // remove spaces
-        {
-          String stripName = StringUtils.stripStart(name, null);
-          classOffset += name.length() - stripName.length();
-          name = stripName;
-        }
-        name = name.trim();
-        //
-        String className = StringUtils.substringBefore(name, ".");
-        String constructorName = StringUtils.substringAfter(name, ".");
-        int constructorOffset = classOffset + className.length() + ".".length();
-        DartCommentNewName newNode = new DartCommentNewName(className, classOffset,
-            constructorName, constructorOffset);
-        {
-          Source source = sourceInfo.getSource();
-          int length = tokenSrc.length() + "[]".length();
-          newNode.setSourceInfo(new SourceInfo(source, offset, length));
-        }
-        // add node
-        comment.addNewName(newNode);
-      } else {
-        String name = tokenSrc.trim();
-        DartCommentRefName refNode = new DartCommentRefName(name);
-        {
-          SourceInfo sourceInfo = comment.getSourceInfo();
-          Source source = sourceInfo.getSource();
-          int offset = sourceInfo.getOffset() + openIndex;
-          int length = name.length() + "[]".length();
-          refNode.setSourceInfo(new SourceInfo(source, offset, length));
-        }
-        comment.addRefName(refNode);
-      }
-    }
-  }
-
-  private static DartDeclaration<?> adjustDartdocTarget(DartNode currentNode, DartNode nextNode) {
-    if (currentNode instanceof DartField && nextNode instanceof DartMethodDefinition) {
-      if (currentNode.getSourceInfo().equals(nextNode.getSourceInfo())) {
-        return (DartDeclaration<?>) nextNode;
-      }
-    }
-
-    return (DartDeclaration<?>) currentNode;
-  }
-
-  /**
-   * DartC creates both a {@link DartField} and a {@link DartMethodDefinition} for getters and
-   * setters. They have the same source location; we want to assign the DartDoc to the method
-   * definition and not the field.
-   */
-  private static boolean commentContainedBySibling(DartComment comment, DartDeclaration<?> node) {
-    if (node instanceof DartField) {
-      for (DartNode child : getChildren(node.getParent())) {
-        if (child != node && !(child instanceof DartComment)) {
-          if (isContainedBy(comment, child)) {
-            return true;
-          }
-        }
-      }
-    }
-    return false;
-  }
-
-  private static List<DartNode> getChildren(DartNode parent) {
-    final List<DartNode> children = new ArrayList<DartNode>();
-
-    parent.visitChildren(new ASTVisitor<DartNode>() {
-      @Override
-      public DartNode visitNode(DartNode node) {
-        children.add(node);
-        return null;
-      }
-    });
-
-    return children;
-  }
-
-  private static boolean isContainedBy(DartNode node, DartNode containedByNode) {
-    SourceInfo nodeSource = node.getSourceInfo();
-    SourceInfo containedBySource = containedByNode.getSourceInfo();
-    int nodeEnd = nodeSource.getOffset() + nodeSource.getLength();
-    int containedByEnd = containedBySource.getOffset() + containedBySource.getLength();
-    return nodeSource.getOffset() >= containedBySource.getOffset() && nodeEnd <= containedByEnd;
-  }
-
-  /**
-   * Return the style of the comment in the given string.
-   * 
-   * @param sourceString the source containing the comment
-   * @param commentStart the location of the comment in the source
-   * @return the style of the comment in the given string
-   */
-  private static DartComment.Style getCommentStyle(String sourceString, int commentStart) {
-    boolean hasMore1 = commentStart + 1 < sourceString.length();
-    boolean hasMore2 = commentStart + 2 < sourceString.length();
-    if (hasMore1 && sourceString.charAt(commentStart + 1) == '/') {
-      return DartComment.Style.END_OF_LINE;
-    } else if (hasMore2 && sourceString.charAt(commentStart + 2) == '*') {
-      return DartComment.Style.DART_DOC;
-    }
-    return DartComment.Style.BLOCK;
-  }
-}