Removed compiler/ directory from repository

dart/compiler/java/com/google/dart/compiler/LibraryDepsVisitor.java

Index: dart/compiler/java/com/google/dart/compiler/LibraryDepsVisitor.java
diff --git a/dart/compiler/java/com/google/dart/compiler/LibraryDepsVisitor.java b/dart/compiler/java/com/google/dart/compiler/LibraryDepsVisitor.java
deleted file mode 100644
index d0acd51610acb7054a2bb528c8964dafa192e7dc..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/LibraryDepsVisitor.java
+++ /dev/null
@@ -1,168 +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;
-
-import com.google.dart.compiler.ast.ASTVisitor;
-import com.google.dart.compiler.ast.DartClass;
-import com.google.dart.compiler.ast.DartIdentifier;
-import com.google.dart.compiler.ast.DartMethodInvocation;
-import com.google.dart.compiler.ast.DartParameterizedTypeNode;
-import com.google.dart.compiler.ast.DartPropertyAccess;
-import com.google.dart.compiler.ast.DartTypeNode;
-import com.google.dart.compiler.ast.DartUnit;
-import com.google.dart.compiler.resolver.Element;
-import com.google.dart.compiler.resolver.ElementKind;
-import com.google.dart.compiler.type.InterfaceType;
-import com.google.dart.compiler.type.Type;
-import com.google.dart.compiler.type.TypeKind;
-
-import java.net.URI;
-
-/**
- * A visitor that fills in {@link LibraryDeps} for a compilation unit.
- */
-public class LibraryDepsVisitor extends ASTVisitor<Void> {
-  /**
-   * Fill in {@link LibraryDeps} from a {@link DartUnit}.
-   */
-  static void exec(DartUnit unit, LibraryDeps.Source source) {
-    LibraryDepsVisitor v = new LibraryDepsVisitor(source);
-    unit.accept(v);
-  }
-
-  private final LibraryDeps.Source source;
-  private Element currentClass;
-
-  private LibraryDepsVisitor(LibraryDeps.Source source) {
-    this.source = source;
-  }
-
-  @Override
-  public Void visitIdentifier(DartIdentifier node) {
-    Element target = node.getElement();
-    ElementKind kind = ElementKind.of(target);
-    // Add dependency on the field or method.
-    switch (kind) {
-      case FIELD:
-      case METHOD: {
-        Element enclosing = target.getEnclosingElement();
-        addHoleIfUnqualifiedSuper(node, enclosing);
-        if (enclosing.getKind().equals(ElementKind.LIBRARY)) {
-          addElementDependency(target);
-        }
-        break;
-      }
-    }
-    // Add dependency on the computed type of identifiers.
-    switch (kind) {
-      case NONE:
-        source.addHole(node.getName());
-        break;
-      case DYNAMIC:
-        break;
-      default: {
-        Type type = target.getType();
-        if (type != null) {
-          Element element = type.getElement();
-          if (ElementKind.of(element).equals(ElementKind.CLASS)) {
-            addElementDependency(element);
-          }
-        }
-        break;
-      }
-    }
-    return null;
-  }
-
-  @Override
-  public Void visitPropertyAccess(DartPropertyAccess node) {
-    if (node.getQualifier() instanceof DartIdentifier) {
-      DartIdentifier qualifier = (DartIdentifier) node.getQualifier();
-      Element target = qualifier.getElement();
-      if (target != null && target.getKind() == ElementKind.LIBRARY) {
-        // Handle library prefixes normally.
-        // The prefix part of the qualifier doesn't contain any resolvable library source info.
-        return super.visitPropertyAccess(node);
-      }
-    }
-    // Skip rhs of property accesses, so that all identifiers we visit will be unqualified.
-    if (node.isCascade()) {
-      return null;
-    }
-    return node.getQualifier().accept(this);
-  }
-
-  @Override
-  public Void visitClass(DartClass node) {
-    currentClass = node.getElement();
-    node.visitChildren(this);
-    currentClass = null;
-    return null;
-  }
-
-  @Override
-  public Void visitParameterizedTypeNode(DartParameterizedTypeNode node) {
-    if (TypeKind.of(node.getType()).equals(TypeKind.INTERFACE)) {
-      addElementDependency(((InterfaceType) node.getType()).getElement());
-    }
-    node.visitChildren(this);
-    return null;
-  }
-
-  @Override
-  public Void visitTypeNode(DartTypeNode node) {
-    if (TypeKind.of(node.getType()).equals(TypeKind.INTERFACE)) {
-      addElementDependency(((InterfaceType) node.getType()).getElement());
-    }
-    node.visitChildren(this);
-    return null;
-  }
-
-  /**
-   * Add a 'hole' for the given identifier, if its declaring class is a superclass of the current
-   * class. A 'hole' dependency specifies a name that, if filled by something in the library scope,
-   * would require this unit to be recompiled.
-   * 
-   * This situation occurs because names in the library scope bind more strongly than unqualified
-   * superclass members.
-   */
-  private void addHoleIfUnqualifiedSuper(DartIdentifier node, Element holder) {
-    if (isQualified(node)) {
-      return;
-    }
-    if (ElementKind.of(holder) == ElementKind.CLASS && holder != currentClass) {
-      source.addHole(node.getName());
-    }
-  }
-
-  /**
-   * Adds a direct dependency on the unit providing given {@link Element}.
-   */
-  private void addElementDependency(Element element) {
-    DartSource elementSource = (DartSource) element.getSourceInfo().getSource();
-    if (elementSource != null) {
-      LibrarySource library = elementSource.getLibrary();
-      if (library != null) {
-        URI libUri = library.getUri();
-        LibraryDeps.Dependency dep = new LibraryDeps.Dependency(libUri, elementSource.getName(),
-            elementSource.getLastModified());
-        source.addDep(dep);
-      }
-    }
-  }
-
-  /**
-   * @return <code>true</code> if given {@link DartIdentifier} is "name" part of qualified property
-   *         access or method invocation.
-   */
-  private static boolean isQualified(DartIdentifier node) {
-    if (node.getParent() instanceof DartPropertyAccess) {
-      return ((DartPropertyAccess) node.getParent()).getName() == node;
-    }
-    if (node.getParent() instanceof DartMethodInvocation) {
-      return ((DartMethodInvocation) node.getParent()).getFunctionName() == node;
-    }
-    return false;
-  }
-}