private static boolean textOfExpressionsIsEquivalent(
GrExpression expToCompare1, GrExpression expToCompare2) {
final String text1 = expToCompare1.getText();
final String text2 = expToCompare2.getText();
return text1.equals(text2);
}
@SuppressWarnings({"ConstantConditions"})
public static boolean expressionsAreEquivalent(
@Nullable GrExpression exp1, @Nullable GrExpression exp2) {
if (exp1 == null && exp2 == null) {
return true;
}
if (exp1 == null || exp2 == null) {
return false;
}
GrExpression expToCompare1 = (GrExpression) PsiUtil.skipParentheses(exp1, false);
GrExpression expToCompare2 = (GrExpression) PsiUtil.skipParentheses(exp2, false);
final int type1 = getExpressionType(expToCompare1);
final int type2 = getExpressionType(expToCompare2);
if (type1 != type2) {
return false;
}
switch (type1) {
case THIS_EXPRESSION:
case SUPER_EXPRESSION:
return true;
case LITERAL_EXPRESSION:
case REFERENCE_EXPRESSION:
final String text1 = expToCompare1.getText();
final String text2 = expToCompare2.getText();
return text1.equals(text2);
case CALL_EXPRESSION:
return methodCallExpressionsAreEquivalent(
(GrMethodCall) expToCompare1, (GrMethodCall) expToCompare2);
case NEW_EXPRESSION:
return newExpressionsAreEquivalent(
(GrNewExpression) expToCompare1, (GrNewExpression) expToCompare2);
case ARRAY_LITERAL_EXPRESSION:
return arrayDeclarationsAreEquivalent(
(GrArrayDeclaration) expToCompare1, (GrArrayDeclaration) expToCompare2);
case PREFIX_EXPRESSION:
return prefixExpressionsAreEquivalent(
(GrUnaryExpression) expToCompare1, (GrUnaryExpression) expToCompare2);
case POSTFIX_EXPRESSION:
return postfixExpressionsAreEquivalent(
(GrUnaryExpression) expToCompare1, (GrUnaryExpression) expToCompare2);
case BINARY_EXPRESSION:
return binaryExpressionsAreEquivalent(
(GrBinaryExpression) expToCompare1, (GrBinaryExpression) expToCompare2);
case ASSIGNMENT_EXPRESSION:
return assignmentExpressionsAreEquivalent(
(GrAssignmentExpression) expToCompare1, (GrAssignmentExpression) expToCompare2);
case CONDITIONAL_EXPRESSION:
return conditionalExpressionsAreEquivalent(
(GrConditionalExpression) expToCompare1, (GrConditionalExpression) expToCompare2);
case ELVIS_EXPRESSION:
return elvisExpressionsAreEquivalent(
(GrElvisExpression) expToCompare1, (GrElvisExpression) expToCompare2);
case RANGE_EXPRESSION:
return rangeExpressionsAreEquivalent(
(GrRangeExpression) expToCompare1, (GrRangeExpression) expToCompare2);
case TYPE_CAST_EXPRESSION:
return typecastExpressionsAreEquivalent(
(GrTypeCastExpression) expToCompare1, (GrTypeCastExpression) expToCompare2);
case SAFE_CAST_EXPRESSION:
return safecastExpressionsAreEquivalent(
(GrSafeCastExpression) expToCompare1, (GrSafeCastExpression) expToCompare2);
case INSTANCEOF_EXPRESSION:
return instanceofExpressionsAreEquivalent(
(GrInstanceOfExpression) expToCompare1, (GrInstanceOfExpression) expToCompare2);
case INDEX_EXPRESSION:
return indexExpressionsAreEquivalent(
(GrIndexProperty) expToCompare1, (GrIndexProperty) expToCompare2);
case LIST_OR_MAP_EXPRESSION:
return listOrMapExpressionsAreEquivalent(
(GrListOrMap) expToCompare1, (GrListOrMap) expToCompare2);
case CLOSABLE_BLOCK_EXPRESSION:
return closableBlockExpressionsAreEquivalent(
(GrClosableBlock) expToCompare1, (GrClosableBlock) expToCompare2);
case PROPERTY_SELECTION_EXPRESSION:
return textOfExpressionsIsEquivalent(expToCompare1, expToCompare2); // todo
default:
return false;
}
}