Examples of org.eclipse.jdt.core.dom.Expression

org.eclipse.jdt.core.dom.Expression

Abstract base class of AST nodes that represent expressions. There are several kinds of expressions.

 Expression: {@link Annotation}, {@link ArrayAccess}, {@link ArrayCreation}, {@link ArrayInitializer}, {@link Assignment}, {@link BooleanLiteral}, {@link CastExpression}, {@link CharacterLiteral}, {@link ClassInstanceCreation}, {@link ConditionalExpression}, {@link CreationReference}, {@link ExpressionMethodReference}, {@link FieldAccess}, {@link InfixExpression}, {@link InstanceofExpression}, {@link LambdaExpression}, {@link MethodInvocation}, {@link MethodReference}, {@link Name}, {@link NullLiteral}, {@link NumberLiteral}, {@link ParenthesizedExpression}, {@link PostfixExpression}, {@link PrefixExpression}, {@link StringLiteral}, {@link SuperFieldAccess}, {@link SuperMethodInvocation}, {@link SuperMethodReference}, {@link ThisExpression}, {@link TypeLiteral}, {@link TypeMethodReference}, {@link VariableDeclarationExpression}

@since 2.0

          "Invalid number of association arguments. %s for %s.",
          invocation,
          component);
    }
    // set CreationSupport
    Expression expression;
    {
      expression = m_javaInfo.getEditor().addInvocationArgument(invocation, 1, source);
      m_javaInfo.setCreationSupport(new ConstructorCreationSupport((ClassInstanceCreation) expression));
      m_javaInfo.bindToExpression(expression);
      m_javaInfo.addRelatedNode(expression);

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    ClassInstanceCreation columnModelCreation = getColumnModelCreation(false);
    if (columnModelCreation != null) {
      // exists ColumnModel creation
      List<Expression> columnModelArguments = DomGenerics.arguments(columnModelCreation);
      if (columnModelArguments.size() == 1) {
        Expression columnsList = columnModelArguments.get(0);
        // process supported association models...
        if (columnsList instanceof SimpleName) {
          // simple List variable
          bindColumnsAsList((SimpleName) columnsList, javaInfoList);
        } else if (columnsList instanceof MethodInvocation) {

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      SimpleName ensureColumnsList() throws Exception {
        ClassInstanceCreation columnModelCreation = getColumnModelCreation(true);
        // "columns" List usage in "ColumnModel" creation
        List<Expression> columnModelArguments = DomGenerics.arguments(columnModelCreation);
        Expression columnsList = columnModelArguments.get(0);
        if (columnsList instanceof SimpleName) {
          return (SimpleName) columnsList;
        }
        // if no columns then generate new ArrayList
        Statement columnModelStatement = AstNodeUtils.getEnclosingStatement(columnModelCreation);

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    }
    // integer width expected
    if (widget.getAssociation() instanceof InvocationChildAssociation) {
      InvocationChildAssociation association = (InvocationChildAssociation) widget.getAssociation();
      if (association.getDescription().getSignature().endsWith(",int)")) {
        Expression expression = DomGenerics.arguments(association.getInvocation()).get(1);
        return ((Integer) JavaInfoEvaluationHelper.getValue(expression)).toString();
      }
    }
    // impossible
    return Property.UNKNOWN_VALUE;

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      void ensureColumnsAsArray() throws Exception {
        ClassInstanceCreation columnModelCreation = getColumnModelCreation(true);
        // "columns" List usage in "ColumnModel" creation
        List<Expression> columnModelArguments = DomGenerics.arguments(columnModelCreation);
        Expression columnsList = columnModelArguments.get(0);
        if (columnsList instanceof MethodInvocation) {
          MethodInvocation invocation = (MethodInvocation) columnsList;
          if (invocation == arrayInfo.getInvocation()) {
            return;
          }

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        // done
        return;
      }
      // set absolute value
      {
        Expression expression = DomGenerics.arguments(invocation).get(1);
        editor.replaceExpression(expression, value);
        editor.replaceInvocationBinding(invocation);
        for (JavaInfo columnData : widget.getChildren(ColumnLayoutDataInfo.class)) {
          columnData.delete();
        }

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        (ColumnLayoutDataInfo) JavaInfoUtils.createJavaInfo(
            editor,
            "com.gwtext.client.widgets.layout.ColumnLayoutData",
            new ConstructorCreationSupport());
    // set CreationSupport
    Expression expression;
    {
      expression = DomGenerics.arguments(invocation).get(1);
      String contentSource = columnData.getCreationSupport().add_getSource(null);
      expression = editor.replaceExpression(expression, contentSource);
      columnData.getCreationSupport().add_setSourceExpression(expression);

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            JavaInfoUtils.createJavaInfo(
                editor,
                "com.gwtext.client.widgets.Panel",
                new ConstructorCreationSupport());
        // set CreationSupport
        Expression expression;
        {
          ClassInstanceCreation creation =
              ((ConstructorCreationSupport) getCreationSupport()).getCreation();
          expression = DomGenerics.arguments(creation).get(0);
          String contentSource = content.getCreationSupport().add_getSource(null);

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      @Override
      public void bindComponents(List<JavaInfo> components) throws Exception {
        String signature_setEl = "setEl(com.google.gwt.user.client.Element)";
        for (MethodInvocation invocation : getMethodInvocations(signature_setEl)) {
          List<Expression> arguments = DomGenerics.arguments(invocation);
          Expression elementExpression = arguments.get(0);
          if (AstNodeUtils.isMethodInvocation(elementExpression, "getElement()")) {
            Expression widgetExpression = ((MethodInvocation) elementExpression).getExpression();
            for (JavaInfo component : components) {
              if (component.isRepresentedBy(widgetExpression)) {
                addChild(component);
                component.setAssociation(new EmptyAssociation());
              }

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  public Object getAnchor() throws Exception {
    if (getCreationSupport() instanceof ConstructorCreationSupport) {
      ConstructorCreationSupport creationSupport =
          (ConstructorCreationSupport) getCreationSupport();
      ClassInstanceCreation creation = creationSupport.getCreation();
      Expression anchorExpression = DomGenerics.arguments(creation).get(0);
      return JavaInfoEvaluationHelper.getValue(anchorExpression);
    }
    return Property.UNKNOWN_VALUE;
  }

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