Examples of com.google.javascript.jscomp.GlobalNamespace.Name

Package com.google.javascript.jscomp.GlobalNamespace

Examples of com.google.javascript.jscomp.GlobalNamespace.Name

com.google.javascript.jscomp.GlobalNamespace.Name

      String propName = isJsIdentifier ?
          key.getString() : String.valueOf(++arbitraryNameCounter);


      // If the name cannot be collapsed, skip it.
      String qName = objlitName.getFullName() + '.' + propName;
      Name p = nameMap.get(qName);
      if (p != null && !p.canCollapse()) {
        continue;
      }


      String propAlias = appendPropForAlias(alias, propName);
      Node refNode = null;
      if (discardKeys) {
        objlit.removeChild(key);
        value.detachFromParent();
      } else {
        // Substitute a reference for the value.
        refNode = IR.name(propAlias);
        if (key.getBooleanProp(Node.IS_CONSTANT_NAME)) {
          refNode.putBooleanProp(Node.IS_CONSTANT_NAME, true);
        }


        key.replaceChild(value, refNode);
      }


      // Declare the collapsed name as a variable with the original value.
      Node nameNode = IR.name(propAlias);
      nameNode.addChildToFront(value);
      if (key.getBooleanProp(Node.IS_CONSTANT_NAME)) {
        nameNode.putBooleanProp(Node.IS_CONSTANT_NAME, true);
      }
      Node newVar = IR.var(nameNode)
          .copyInformationFromForTree(key);
      if (nameToAddAfter != null) {
        varParent.addChildAfter(newVar, nameToAddAfter);
      } else {
        varParent.addChildBefore(newVar, varNode);
      }
      compiler.reportCodeChange();
      nameToAddAfter = newVar;


      // Update the global name's node ancestry if it hasn't already been
      // done. (Duplicate keys in an object literal can bring us here twice
      // for the same global name.)
      if (isJsIdentifier && p != null) {
        if (!discardKeys) {
          Ref newAlias =
              p.getDeclaration().cloneAndReclassify(Ref.Type.ALIASING_GET);
          newAlias.node = refNode;
          p.addRef(newAlias);
        }


        p.getDeclaration().node = nameNode;


        if (value.isFunction()) {
          checkForHosedThisReferences(value, value.getJSDocInfo(), p);
        }
      }

View Full Code Here

 * @author nicksantos@google.com (Nick Santos)
 */
public class GlobalNamespaceTest extends TestCase {


  public void testRemoveDeclaration1() {
    Name n = new Name("a", null, false);
    Ref set1 = createNodelessRef(Ref.Type.SET_FROM_GLOBAL);
    Ref set2 = createNodelessRef(Ref.Type.SET_FROM_GLOBAL);


    n.addRef(set1);
    n.addRef(set2);


    assertEquals(set1, n.getDeclaration());
    assertEquals(2, n.globalSets);
    assertEquals(2, n.getRefs().size());


    n.removeRef(set1);


    assertEquals(set2, n.getDeclaration());
    assertEquals(1, n.globalSets);
    assertEquals(1, n.getRefs().size());
  }

View Full Code Here

    assertEquals(1, n.globalSets);
    assertEquals(1, n.getRefs().size());
  }


  public void testRemoveDeclaration2() {
    Name n = new Name("a", null, false);
    Ref set1 = createNodelessRef(Ref.Type.SET_FROM_GLOBAL);
    Ref set2 = createNodelessRef(Ref.Type.SET_FROM_LOCAL);


    n.addRef(set1);
    n.addRef(set2);


    assertEquals(set1, n.getDeclaration());
    assertEquals(1, n.globalSets);
    assertEquals(1, n.localSets);
    assertEquals(2, n.getRefs().size());


    n.removeRef(set1);


    assertEquals(null, n.getDeclaration());
    assertEquals(0, n.globalSets);
  }

View Full Code Here


  private void validateName(Name name, boolean isDefined) {
    // If the name is not defined, emit warnings for each reference. While
    // we're looking through each reference, check all the module dependencies.
    Ref declaration = name.getDeclaration();
    Name parent = name.parent;
    boolean singleGlobalParentDecl =
        parent != null &&
        parent.getDeclaration() != null &&
        parent.localSets == 0;


    JSModuleGraph moduleGraph = compiler.getModuleGraph();
    for (Ref ref : name.getRefs()) {
      if (!isDefined && !isTypedef(ref)) {
        reportRefToUndefinedName(name, ref);
      } else if (declaration != null &&
          ref.getModule() != declaration.getModule() &&
          !moduleGraph.dependsOn(
              ref.getModule(), declaration.getModule())) {
        reportBadModuleReference(name, ref);
      } else if (ref.scope.isGlobal() &&
          singleGlobalParentDecl &&
          parent.getDeclaration().preOrderIndex > ref.preOrderIndex) {
        compiler.report(
            JSError.make(ref.source.getName(), ref.node,
                NAME_DEFINED_LATE_WARNING,
                name.getFullName(),
                parent.getFullName(),
                parent.getDeclaration().source.getName(),
                String.valueOf(parent.getDeclaration().node.getLineno())));
      }
    }
  }

View Full Code Here

    @Override
    public  void visit(NodeTraversal t, Node n, Node parent) {
      RefInfo refInfo = allRefInfo.get(n);
      if (refInfo != null) {
        Ref ref = refInfo.ref;
        Name name = refInfo.name;
        String fullName = name.getFullName();
        switch (ref.type) {
          case SET_FROM_GLOBAL:
          case SET_FROM_LOCAL:
            Node valParent = getValueParent(ref);
            Node val = valParent.getLastChild();
            if (valParent.getType() == Token.ASSIGN && name.isSimpleName() &&
                name.getDeclaration() == ref) {
              // For defines, it's an error if a simple name is assigned
              // before it's declared
              compiler.report(
                  t.makeError(val, INVALID_DEFINE_INIT_ERROR, fullName));
            } else if (processDefineAssignment(t, fullName, val, valParent)) {

View Full Code Here


  public void testSimpleReassign2() {
    test("/** @define {number|boolean} */ var DEF=false;DEF=true;DEF=3",
        "var DEF=3;true;3");


    Name def = namespace.getNameIndex().get("DEF");
    assertEquals(1, def.getRefs().size());
    assertEquals(1, def.globalSets);
    assertNotNull(def.getDeclaration());
  }

View Full Code Here

    test(
        "/** @define {boolean} */var DEF=true;" +
        "var x=function(){var y=DEF}; DEF=false",
        "var DEF=false;var x=function(){var y=DEF};false");


    Name def = namespace.getNameIndex().get("DEF");
    assertEquals(2, def.getRefs().size());
    assertEquals(1, def.globalSets);
    assertNotNull(def.getDeclaration());
  }

View Full Code Here


  public void testNamespacedDefine1() {
    test("var a = {}; /** @define {boolean} */ a.B = false; a.B = true;",
         "var a = {}; a.B = true; true;");


    Name aDotB = namespace.getNameIndex().get("a.B");
    assertEquals(1, aDotB.getRefs().size());
    assertEquals(1, aDotB.globalSets);
    assertNotNull(aDotB.getDeclaration());
  }

View Full Code Here

   */
  private void inlineAliases(GlobalNamespace namespace) {
    // Invariant: All the names in the worklist meet condition (a).
    Deque<Name> workList = new ArrayDeque<Name>(namespace.getNameForest());
    while (!workList.isEmpty()) {
      Name name = workList.pop();


      // Don't attempt to inline a getter or setter property as a variable.
      if (name.type == Name.Type.GET || name.type == Name.Type.SET) {
        continue;
      }


      if (name.globalSets == 1 && name.localSets == 0 &&
          name.aliasingGets > 0) {
        // {@code name} meets condition (b). Find all of its local aliases
        // and try to inline them.
        List<Ref> refs = Lists.newArrayList(name.getRefs());
        for (Ref ref : refs) {
          if (ref.type == Type.ALIASING_GET && ref.scope.isLocal()) {
            // {@code name} meets condition (c). Try to inline it.
            if (inlineAliasIfPossible(ref, namespace)) {
              name.removeRef(ref);
            }
          }
        }
      }

View Full Code Here

      String propName = isJsIdentifier ?
          key.getString() : String.valueOf(++arbitraryNameCounter);


      // If the name cannot be collapsed, skip it.
      String qName = objlitName.getFullName() + '.' + propName;
      Name p = nameMap.get(qName);
      if (p != null && !p.canCollapse()) {
        continue;
      }


      String propAlias = appendPropForAlias(alias, propName);
      Node refNode = null;
      if (discardKeys) {
        objlit.removeChild(key);
        value.detachFromParent();
      } else {
        // Substitute a reference for the value.
        refNode = Node.newString(Token.NAME, propAlias);
        if (key.getBooleanProp(Node.IS_CONSTANT_NAME)) {
          refNode.putBooleanProp(Node.IS_CONSTANT_NAME, true);
        }


        key.replaceChild(value, refNode);
      }


      // Declare the collapsed name as a variable with the original value.
      Node nameNode = Node.newString(Token.NAME, propAlias);
      nameNode.addChildToFront(value);
      if (key.getBooleanProp(Node.IS_CONSTANT_NAME)) {
        nameNode.putBooleanProp(Node.IS_CONSTANT_NAME, true);
      }
      Node newVar = new Node(Token.VAR, nameNode)
          .copyInformationFromForTree(key);
      if (nameToAddAfter != null) {
        varParent.addChildAfter(newVar, nameToAddAfter);
      } else {
        varParent.addChildBefore(newVar, varNode);
      }
      compiler.reportCodeChange();
      nameToAddAfter = newVar;


      // Update the global name's node ancestry if it hasn't already been
      // done. (Duplicate keys in an object literal can bring us here twice
      // for the same global name.)
      if (isJsIdentifier && p != null) {
        if (!discardKeys) {
          Ref newAlias =
              p.getDeclaration().cloneAndReclassify(Ref.Type.ALIASING_GET);
          newAlias.node = refNode;
          p.addRef(newAlias);
        }


        p.getDeclaration().node = nameNode;


        if (value.getType() == Token.FUNCTION) {
          checkForHosedThisReferences(value, value.getJSDocInfo(), p);
        }
      }

View Full Code Here

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Related Classes of com.google.javascript.jscomp.GlobalNamespace.Name

com.google.javascript.jscomp.CheckGlobalNames

com.google.javascript.jscomp.CollapseProperties

com.google.javascript.jscomp.GlobalNamespaceTest

com.google.javascript.jscomp.ProcessDefines$CollectDefines

com.google.javascript.jscomp.ProcessDefinesTest

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