Java PsiNewExpression类代码示例

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
private PsiElement isBuildingChildScope(PsiMethodCallExpression call) {
    try {
        // Dot
        PsiElement nextSibling = call.getNextSibling();
        // Parenthesis
        nextSibling = nextSibling.getNextSibling();
        // Chained method name
        nextSibling = nextSibling.getParent();
        // Chained method
        PsiElement chainedMethod = nextSibling.getParent();
        if (chainedMethod instanceof PsiMethodCallExpression) {
            PsiExpressionList list = ((PsiMethodCallExpression) chainedMethod).getArgumentList();
            // If chained method is taking an argument that returns an instance of something
            // (such as a new Module), it is probably safe to assume that the user is building a
            // child scope
            if (list.getFirstChild() != null
                    && list.getFirstChild().getNextSibling() instanceof PsiNewExpression) {
                return chainedMethod;
            }
        }
    } catch (Exception e) {
        // A for effort
    }
    return null;
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void apply(Editor editor, JavaSmartEnterProcessor processor, PsiElement psiElement) throws IncorrectOperationException {
  if (!(psiElement instanceof PsiNewExpression)) return;
  PsiNewExpression expr = (PsiNewExpression)psiElement;
  int count = 0;
  for (PsiElement element : expr.getChildren()) {
    if (element.getNode().getElementType() == JavaTokenType.LBRACKET) {
      count++;
    } else if (element.getNode().getElementType() == JavaTokenType.RBRACKET) {
      count--;
    }
  }
  if (count > 0) {
    editor.getDocument().insertString(psiElement.getTextRange().getEndOffset(), "]");
  }
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitArrayInitializerExpression(
  PsiArrayInitializerExpression expression) {
  super.visitArrayInitializerExpression(expression);
  final PsiExpression[] initializers = expression.getInitializers();
  if (initializers.length > 0) {
    return;
  }
  if (expression.getParent() instanceof PsiNewExpression) {
    return;
  }
  if (ExpressionUtils.isDeclaredConstant(expression)) {
    return;
  }
  registerError(expression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
protected boolean isResourceCreation(PsiExpression expression) {
  if (expression instanceof PsiMethodCallExpression) {
    final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression)expression;
    final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
    @NonNls final String methodName = methodExpression.getReferenceName();
    if (!"accept".equals(methodName)) {
      return false;
    }
    final PsiExpression qualifier = methodExpression.getQualifierExpression();
    if (qualifier == null || !TypeUtils.expressionHasTypeOrSubtype(qualifier, "java.net.ServerSocket")) {
      return false;
    }
    return TypeUtils.expressionHasTypeOrSubtype(methodCallExpression, "java.net.Socket");
  }
  else if (expression instanceof PsiNewExpression) {
    return TypeUtils.expressionHasTypeOrSubtype(expression, "java.net.Socket", "java.net.DatagramSocket", "java.net.ServerSocket") != null;
  }
  return false;
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitExpressionStatement(@NotNull PsiExpressionStatement statement) {
  super.visitExpressionStatement(statement);
  final PsiExpression expression = statement.getExpression();
  if (!(expression instanceof PsiNewExpression)) {
    return;
  }
  final PsiNewExpression newExpression = (PsiNewExpression)expression;
  final PsiExpression[] arrayDimensions = newExpression.getArrayDimensions();
  if (arrayDimensions.length != 0) {
    return;
  }
  if (newExpression.getArrayInitializer() != null) {
    return;
  }
  registerNewExpressionError(newExpression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitNewExpression(@NotNull PsiNewExpression expression) {
  super.visitNewExpression(expression);
  if (!ExpressionUtils.hasType(expression, "java.text.SimpleDateFormat")) {
    return;
  }
  final PsiExpressionList argumentList = expression.getArgumentList();
  if (argumentList == null) {
    return;
  }
  final PsiExpression[] arguments = argumentList.getExpressions();
  for (PsiExpression argument : arguments) {
    if (ExpressionUtils.hasType(argument, "java.util.Locale")) {
      return;
    }
  }
  registerNewExpressionError(expression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitNewExpression(@NotNull PsiNewExpression expression) {
  super.visitNewExpression(expression);
  final PsiType type = expression.getType();

  if (type == null) {
    return;
  }
  if (!CollectionUtils.isCollectionWithInitialCapacity(type)) {
    return;
  }
  final PsiExpressionList argumentList = expression.getArgumentList();
  if (argumentList == null) {
    return;
  }
  final PsiExpression[] parameters = argumentList.getExpressions();
  if (parameters.length != 0) {
    return;
  }
  registerError(expression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitNewExpression(@NotNull PsiNewExpression expression) {
  super.visitNewExpression(expression);
  if (!ExpressionUtils.hasType(expression, "java.text.SimpleDateFormat")) {
    return;
  }
  final PsiExpressionList argumentList = expression.getArgumentList();
  if (argumentList == null) {
    return;
  }
  final PsiExpression[] arguments = argumentList.getExpressions();
  for (PsiExpression argument : arguments) {
    if (ExpressionUtils.hasType(argument, "java.util.Locale")) {
      return;
    }
  }
  registerError(expression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
private static boolean isUnusedInAnonymousClass(@NotNull PsiMethod method)
{
	PsiClass containingClass = method.getContainingClass();
	if(!(containingClass instanceof PsiAnonymousClass))
	{
		return false;
	}

	if(containingClass.getParent() instanceof PsiNewExpression && containingClass.getParent().getParent() instanceof PsiVariable && !method.getHierarchicalMethodSignature().getSuperSignatures()
			.isEmpty())
	{
		// references outside anonymous class can still resolve to this method, see com.intellij.psi.scope.util.PsiScopesUtil.setupAndRunProcessor()
		return false;
	}

	return MethodReferencesSearch.search(method, new LocalSearchScope(containingClass), false).findFirst() == null;
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitArrayInitializerExpression(PsiArrayInitializerExpression expression)
{
	super.visitArrayInitializerExpression(expression);
	final PsiExpression[] initializers = expression.getInitializers();
	if(initializers.length > 0)
	{
		return;
	}
	if(expression.getParent() instanceof PsiNewExpression)
	{
		return;
	}
	if(ExpressionUtils.isDeclaredConstant(expression))
	{
		return;
	}
	registerError(expression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitNewExpression(@NotNull PsiNewExpression newExpression) {
  if (passed) {
    return;
  }
  super.visitNewExpression(newExpression);
  final PsiExpressionList argumentList = newExpression.getArgumentList();
  if (argumentList == null) {
    return;
  }
  final PsiExpression[] arguments = argumentList.getExpressions();
  for (PsiExpression argument : arguments) {
    if (VariableAccessUtils.mayEvaluateToVariable(argument, variable)) {
      passed = true;
      break;
    }
  }
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void apply(Editor editor, JavaSmartEnterProcessor processor, PsiElement psiElement) throws IncorrectOperationException
{
	if(!(psiElement instanceof PsiNewExpression))
	{
		return;
	}
	PsiNewExpression expr = (PsiNewExpression) psiElement;
	int count = 0;
	for(PsiElement element : expr.getChildren())
	{
		if(element.getNode().getElementType() == JavaTokenType.LBRACKET)
		{
			count++;
		}
		else if(element.getNode().getElementType() == JavaTokenType.RBRACKET)
		{
			count--;
		}
	}
	if(count > 0)
	{
		editor.getDocument().insertString(psiElement.getTextRange().getEndOffset(), "]");
	}
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitNewExpression(@NotNull PsiNewExpression expression)
{
	super.visitNewExpression(expression);
	if(myIgnoreFields && expression.getParent() instanceof PsiField)
	{
		return;
	}

	final PsiType type = expression.getType();
	if(!isCollectionWithInitialCapacity(type))
	{
		return;
	}
	final PsiExpressionList argumentList = expression.getArgumentList();
	if(argumentList == null || argumentList.getExpressions().length != 0)
	{
		return;
	}
	registerNewExpressionError(expression);
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public void visitNewExpression(PsiNewExpression expression) {
    super.visitNewExpression(expression);

    PsiMethod constructor = expression.resolveConstructor();
    if (constructor == null) return;

    JavaEvaluator evaluator = mContext.getEvaluator();
    PsiClass cls = constructor.getContainingClass();
    boolean isView = evaluator.extendsClass(cls, CLASS_VIEW, true);
    if (!isView) return;

    Location location = this.mContext.getLocation(expression);

    PsiElement psiElement = expression.getParent();

    //创建的变量没有赋值给本地变量，无法指定注解
    if (!(psiElement instanceof PsiLocalVariable)) {
        this.mContext.report(DynamicNewViewDetector.ISSUE, expression, location, "检测到动态创建view操作,new 操作的结果需要赋值给本地变量");
        return;
    }

    PsiLocalVariable localVariable = (PsiLocalVariable) psiElement;
    PsiModifierList modifierList = localVariable.getModifierList();
    if (modifierList == null) {
        this.mContext.report(DynamicNewViewDetector.ISSUE, expression, location, "检测到动态创建view操作，确认是否为view指定了唯一标识");
        return;
    }

    PsiAnnotation[] annotations = modifierList.getAnnotations();
    for (PsiAnnotation annotation : annotations) {
        String fullName = annotation.getQualifiedName();
        if (IDENTIFIER_ANNOTATION.equals(fullName)) {
            return;
        }
    }

    this.mContext.report(DynamicNewViewDetector.ISSUE, expression, location, "检测到动态创建view操作，确认是否为view指定了唯一标识");
}
 

import com.intellij.psi.PsiNewExpression; //导入依赖的package包/类
@Override
public boolean isApplicableTo(PsiElement e) {
  if (e instanceof PsiArrayInitializerExpression) {
    final PsiElement gParent = e.getParent();
    if (gParent instanceof PsiNewExpression && gParent.getParent() instanceof PsiVariable) {
      return true;
    }
  }

  return false;
}