Java CastVariable2.getExpressionVariable方法代码示例

import org.eclipse.jdt.internal.corext.refactoring.typeconstraints2.CastVariable2; //导入方法依赖的package包/类
private static ASTNode rewriteCastVariable(
    CastVariable2 castCv,
    CompilationUnitRewrite rewrite,
    InferTypeArgumentsTCModel tCModel) { // , List positionGroups) {
  ASTNode node = castCv.getRange().getNode(rewrite.getRoot());

  ConstraintVariable2 expressionVariable = castCv.getExpressionVariable();
  ConstraintVariable2 methodReceiverCv = tCModel.getMethodReceiverCv(expressionVariable);
  if (methodReceiverCv != null) {
    TType chosenReceiverType =
        InferTypeArgumentsConstraintsSolver.getChosenType(methodReceiverCv);
    if (chosenReceiverType == null) return null;
    else if (!InferTypeArgumentsTCModel.isAGenericType(chosenReceiverType)) return null;
    else if (hasUnboundElement(methodReceiverCv, tCModel)) return null;
  }

  CastExpression castExpression = (CastExpression) node;
  Expression expression = castExpression.getExpression();
  ASTNode nodeToReplace;
  if (castExpression.getParent() instanceof ParenthesizedExpression)
    nodeToReplace = castExpression.getParent();
  else nodeToReplace = castExpression;

  Expression newExpression = (Expression) rewrite.getASTRewrite().createMoveTarget(expression);
  rewrite
      .getASTRewrite()
      .replace(
          nodeToReplace,
          newExpression,
          rewrite.createGroupDescription(
              RefactoringCoreMessages.InferTypeArgumentsRefactoring_removeCast));
  rewrite.getImportRemover().registerRemovedNode(nodeToReplace);
  return newExpression;
}
 

import org.eclipse.jdt.internal.corext.refactoring.typeconstraints2.CastVariable2; //导入方法依赖的package包/类
private void findCastsToRemove(CastVariable2[] castVariables) {
  for (int i = 0; i < castVariables.length; i++) {
    CastVariable2 castCv = castVariables[i];
    ConstraintVariable2 expressionVariable = castCv.getExpressionVariable();
    TType chosenType = InferTypeArgumentsConstraintsSolver.getChosenType(expressionVariable);
    TType castType = castCv.getType();
    TType expressionType = expressionVariable.getType();
    if (chosenType != null && TTypes.canAssignTo(chosenType, castType)) {
      if (chosenType.equals(expressionType))
        continue; // The type has not changed. Don't remove the cast, since it could be
      // there to get access to default-visible members or to
      // unify types of conditional expressions.
      fUpdate.addCastToRemove(castCv);

    } else if (expressionVariable instanceof ArrayTypeVariable2
        && castType.isArrayType()) { // bug 97258
      ArrayElementVariable2 arrayElementCv = fTCModel.getArrayElementVariable(expressionVariable);
      if (arrayElementCv == null) continue;
      TType chosenArrayElementType =
          InferTypeArgumentsConstraintsSolver.getChosenType(arrayElementCv);
      if (chosenArrayElementType != null
          && TTypes.canAssignTo(
              chosenArrayElementType, ((ArrayType) castType).getComponentType())) {
        if (expressionType instanceof ArrayType
            && chosenArrayElementType.equals(((ArrayType) expressionType).getComponentType()))
          continue; // The type has not changed. Don't remove the cast, since it could be
        // there to unify types of conditional expressions.
        fUpdate.addCastToRemove(castCv);
      }
    }
  }
}
 

import org.eclipse.jdt.internal.corext.refactoring.typeconstraints2.CastVariable2; //导入方法依赖的package包/类
private static ASTNode rewriteCastVariable(CastVariable2 castCv, CompilationUnitRewrite rewrite, InferTypeArgumentsTCModel tCModel) {//, List positionGroups) {
	ASTNode node= castCv.getRange().getNode(rewrite.getRoot());

	ConstraintVariable2 expressionVariable= castCv.getExpressionVariable();
	ConstraintVariable2 methodReceiverCv= tCModel.getMethodReceiverCv(expressionVariable);
	if (methodReceiverCv != null) {
		TType chosenReceiverType= InferTypeArgumentsConstraintsSolver.getChosenType(methodReceiverCv);
		if (chosenReceiverType == null)
			return null;
		else if (! InferTypeArgumentsTCModel.isAGenericType(chosenReceiverType))
			return null;
		else if (hasUnboundElement(methodReceiverCv, tCModel))
			return null;
	}

	CastExpression castExpression= (CastExpression) node;
	Expression expression= castExpression.getExpression();
	ASTNode nodeToReplace;
	if (castExpression.getParent() instanceof ParenthesizedExpression)
		nodeToReplace= castExpression.getParent();
	else
		nodeToReplace= castExpression;

	Expression newExpression= (Expression) rewrite.getASTRewrite().createMoveTarget(expression);
	rewrite.getASTRewrite().replace(nodeToReplace, newExpression, rewrite.createGroupDescription(RefactoringCoreMessages.InferTypeArgumentsRefactoring_removeCast));
	rewrite.getImportRemover().registerRemovedNode(nodeToReplace);
	return newExpression;
}
 

import org.eclipse.jdt.internal.corext.refactoring.typeconstraints2.CastVariable2; //导入方法依赖的package包/类
private void findCastsToRemove(CastVariable2[] castVariables) {
	for (int i= 0; i < castVariables.length; i++) {
		CastVariable2 castCv= castVariables[i];
		ConstraintVariable2 expressionVariable= castCv.getExpressionVariable();
		TType chosenType= InferTypeArgumentsConstraintsSolver.getChosenType(expressionVariable);
		TType castType= castCv.getType();
		TType expressionType= expressionVariable.getType();
		if (chosenType != null && TTypes.canAssignTo(chosenType, castType)) {
			if (chosenType.equals(expressionType))
				continue; // The type has not changed. Don't remove the cast, since it could be
						   // there to get access to default-visible members or to
						   // unify types of conditional expressions.
			fUpdate.addCastToRemove(castCv);

		} else if (expressionVariable instanceof ArrayTypeVariable2 && castType.isArrayType()) { // bug 97258
			ArrayElementVariable2 arrayElementCv= fTCModel.getArrayElementVariable(expressionVariable);
			if (arrayElementCv == null)
				continue;
			TType chosenArrayElementType= InferTypeArgumentsConstraintsSolver.getChosenType(arrayElementCv);
			if (chosenArrayElementType != null && TTypes.canAssignTo(chosenArrayElementType, ((ArrayType) castType).getComponentType())) {
				if (expressionType instanceof ArrayType && chosenArrayElementType.equals(((ArrayType) expressionType).getComponentType()))
					continue; // The type has not changed. Don't remove the cast, since it could be
							   // there to unify types of conditional expressions.
				fUpdate.addCastToRemove(castCv);
			}
		}
	}
}