@Nullable
public static GrExpression stripParentheses(@Nullable GrExpression expression) {
GrExpression parenthesized = expression;
while (parenthesized instanceof GrParenthesizedExpression) {
final GrParenthesizedExpression parenthesizedExpression =
(GrParenthesizedExpression) parenthesized;
parenthesized = parenthesizedExpression.getOperand();
}
return parenthesized;
}
@Override
public void visitParenthesizedExpression(GrParenthesizedExpression expression) {
final PsiElement parent = expression.getParent();
if (parent instanceof GroovyPsiElement) {
((GroovyPsiElement) parent).accept(this);
} else {
parent.accept(new GroovyPsiElementVisitor(this));
}
}
@Override
public void visitParenthesizedExpression(GrParenthesizedExpression expression) {
final GrExpression operand = expression.getOperand();
if (operand != null) operand.accept(this);
}