@Override
public void visitReferenceExpression(GrReferenceExpression expression) {
super.visitReferenceExpression(expression);
if (org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil.isSuperReference(
expression.getQualifierExpression())) {
PsiElement resolved = expression.resolve();
if (resolved == null
|| resolved instanceof PsiMethod && shouldFixSuper((PsiMethod) resolved)) {
mySupersToDelete.add(expression.getQualifierExpression());
}
} else if (org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil.isSuperReference(expression)) {
mySupersToChangeToThis.add(expression);
}
}
private static void qualify(PsiMember member, PsiElement renamed, String name) {
if (!(renamed instanceof GrReferenceExpression)) return;
final PsiClass clazz = member.getContainingClass();
if (clazz == null) return;
final GrReferenceExpression refExpr = (GrReferenceExpression) renamed;
if (refExpr.getQualifierExpression() != null) return;
final PsiElement replaced;
if (member.hasModifierProperty(PsiModifier.STATIC)) {
final GrReferenceExpression newRefExpr =
GroovyPsiElementFactory.getInstance(member.getProject())
.createReferenceExpressionFromText(clazz.getQualifiedName() + "." + name);
replaced = refExpr.replace(newRefExpr);
} else {
final PsiClass containingClass = PsiTreeUtil.getParentOfType(renamed, PsiClass.class);
if (member.getManager().areElementsEquivalent(containingClass, clazz)) {
final GrReferenceExpression newRefExpr =
GroovyPsiElementFactory.getInstance(member.getProject())
.createReferenceExpressionFromText("this." + name);
replaced = refExpr.replace(newRefExpr);
} else {
final GrReferenceExpression newRefExpr =
GroovyPsiElementFactory.getInstance(member.getProject())
.createReferenceExpressionFromText(clazz.getQualifiedName() + ".this." + name);
replaced = refExpr.replace(newRefExpr);
}
}
JavaCodeStyleManager.getInstance(replaced.getProject()).shortenClassReferences(replaced);
}
@Nullable
public static GrExpression getRuntimeQualifier(GrReferenceExpression refExpr) {
GrExpression qualifier = refExpr.getQualifierExpression();
if (qualifier != null) return qualifier;
for (GrClosableBlock closure = PsiTreeUtil.getParentOfType(refExpr, GrClosableBlock.class);
closure != null;
closure = PsiTreeUtil.getParentOfType(closure, GrClosableBlock.class)) {
PsiElement parent = closure.getParent();
if (parent instanceof GrArgumentList) parent = parent.getParent();
if (!(parent instanceof GrMethodCall)) continue;
GrExpression funExpr = ((GrMethodCall) parent).getInvokedExpression();
if (!(funExpr instanceof GrReferenceExpression)) return funExpr;
final PsiElement resolved = ((GrReferenceExpression) funExpr).resolve();
if (!(resolved instanceof PsiMethod)) return funExpr;
if (resolved instanceof GrGdkMethod
&& isFromDGM((GrGdkMethod) resolved)
&& !GdkMethodUtil.isWithName(((GrGdkMethod) resolved).getStaticMethod().getName())) {
continue;
}
qualifier = ((GrReferenceExpression) funExpr).getQualifierExpression();
if (qualifier != null) return qualifier;
}
return null;
}
@Override
public void visitReferenceExpression(GrReferenceExpression referenceExpression) {
final PsiElement resolved = referenceExpression.resolve();
if (resolved instanceof PsiVariable) {
if (!isStaticFinalField((PsiVariable) resolved)) {
if (expr instanceof GrClosableBlock) {
if (!PsiTreeUtil.isContextAncestor(scope, resolved, true)) {
throw new GrRefactoringError(
GroovyRefactoringBundle.message("closure.uses.external.variables"));
}
} else {
throw new GrRefactoringError(
RefactoringBundle.message("selected.expression.cannot.be.a.constant.initializer"));
}
}
} else if (resolved instanceof PsiMethod
&& ((PsiMethod) resolved).getContainingClass() != null) {
final GrExpression qualifier = referenceExpression.getQualifierExpression();
if (qualifier == null
|| (qualifier instanceof GrReferenceExpression
&& ((GrReferenceExpression) qualifier).resolve() instanceof PsiClass)) {
if (!((PsiMethod) resolved).hasModifierProperty(PsiModifier.STATIC)) {
throw new GrRefactoringError(
RefactoringBundle.message("selected.expression.cannot.be.a.constant.initializer"));
}
}
}
}
@Nullable
private static PsiType getTypeFromMapAccess(@NotNull GrReferenceExpression ref) {
// map access
GrExpression qualifier = ref.getQualifierExpression();
if (qualifier instanceof GrReferenceExpression) {
if (((GrReferenceExpression) qualifier).resolve() instanceof PsiClass) return null;
}
if (qualifier != null) {
PsiType qType = qualifier.getType();
if (qType instanceof PsiClassType) {
PsiClassType.ClassResolveResult qResult = ((PsiClassType) qType).resolveGenerics();
PsiClass clazz = qResult.getElement();
if (clazz != null) {
PsiClass mapClass =
JavaPsiFacade.getInstance(ref.getProject())
.findClass(CommonClassNames.JAVA_UTIL_MAP, ref.getResolveScope());
if (mapClass != null && mapClass.getTypeParameters().length == 2) {
PsiSubstitutor substitutor =
TypeConversionUtil.getClassSubstitutor(mapClass, clazz, qResult.getSubstitutor());
if (substitutor != null) {
PsiType substituted = substitutor.substitute(mapClass.getTypeParameters()[1]);
if (substituted != null) {
return PsiImplUtil.normalizeWildcardTypeByPosition(substituted, ref);
}
}
}
}
}
}
return null;
}
@Override
public void visitMethodCallExpression(GrMethodCallExpression grMethodCallExpression) {
super.visitMethodCallExpression(grMethodCallExpression);
final GrArgumentList args = grMethodCallExpression.getArgumentList();
if (args.getExpressionArguments().length != 1) {
return;
}
if (PsiImplUtil.hasNamedArguments(args)) {
return;
}
final GrExpression methodExpression = grMethodCallExpression.getInvokedExpression();
if (!(methodExpression instanceof GrReferenceExpression)) {
return;
}
final GrReferenceExpression referenceExpression = (GrReferenceExpression) methodExpression;
final String name = referenceExpression.getReferenceName();
if (!"get".equals(name)) {
return;
}
final GrExpression qualifier = referenceExpression.getQualifierExpression();
if (qualifier == null || PsiUtil.isThisOrSuperRef(qualifier)) {
return;
}
if (referenceExpression.getDotTokenType() == GroovyTokenTypes.mOPTIONAL_DOT) return;
final PsiType type = qualifier.getType();
if (!InheritanceUtil.isInheritor(type, CommonClassNames.JAVA_UTIL_MAP)) {
return;
}
registerMethodCallError(grMethodCallExpression);
}
private void fixReferencesToStatic(GroovyPsiElement classMember, Set<PsiMember> movedMembers)
throws IncorrectOperationException {
final StaticReferencesCollector collector = new StaticReferencesCollector(movedMembers);
classMember.accept(collector);
ArrayList<GrReferenceElement> refs = collector.getReferences();
ArrayList<PsiElement> members = collector.getReferees();
ArrayList<PsiClass> classes = collector.getRefereeClasses();
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(myProject);
for (int i = 0; i < refs.size(); i++) {
GrReferenceElement ref = refs.get(i);
PsiElement namedElement = members.get(i);
PsiClass aClass = classes.get(i);
if (namedElement instanceof PsiNamedElement) {
GrReferenceExpression newRef =
(GrReferenceExpression)
factory.createExpressionFromText(
"a." + ((PsiNamedElement) namedElement).getName(), null);
GrExpression qualifier = newRef.getQualifierExpression();
assert qualifier != null;
qualifier =
(GrExpression)
qualifier.replace(
factory.createReferenceExpressionFromText(aClass.getQualifiedName()));
qualifier.putCopyableUserData(PRESERVE_QUALIFIER, ref.isQualified());
PsiElement replaced = ref.replace(newRef);
JavaCodeStyleManager.getInstance(myProject).shortenClassReferences(replaced);
}
}
}
public void visitAssignmentExpression(@NotNull GrAssignmentExpression assignment) {
super.visitAssignmentExpression(assignment);
final IElementType sign = assignment.getOperationTokenType();
if (!sign.equals(GroovyTokenTypes.mASSIGN)) {
return;
}
final GrExpression lhs = assignment.getLValue();
final GrExpression rhs = assignment.getRValue();
if (rhs == null) {
return;
}
if (!(rhs instanceof GrReferenceExpression) || !(lhs instanceof GrReferenceExpression)) {
return;
}
final GrReferenceExpression rhsReference = (GrReferenceExpression) rhs;
final GrReferenceExpression lhsReference = (GrReferenceExpression) lhs;
final GrExpression rhsQualifier = rhsReference.getQualifierExpression();
final GrExpression lhsQualifier = lhsReference.getQualifierExpression();
if (rhsQualifier != null || lhsQualifier != null) {
if (!EquivalenceChecker.expressionsAreEquivalent(rhsQualifier, lhsQualifier)) {
return;
}
}
final String rhsName = rhsReference.getReferenceName();
final String lhsName = lhsReference.getReferenceName();
if (rhsName == null || lhsName == null) {
return;
}
if (!rhsName.equals(lhsName)) {
return;
}
final PsiElement rhsReferent = rhsReference.resolve();
final PsiElement lhsReferent = lhsReference.resolve();
if (rhsReferent == null || lhsReferent == null || !rhsReferent.equals(lhsReferent)) {
return;
}
registerError(assignment);
}
@Override
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiElement referenceName = descriptor.getPsiElement();
final GrReferenceExpression invokedExpression =
(GrReferenceExpression) referenceName.getParent();
final GrMethodCallExpression callExpression =
(GrMethodCallExpression) invokedExpression.getParent();
final GrArgumentList args = callExpression.getArgumentList();
final GrExpression arg = args.getExpressionArguments()[0];
replaceExpression(
callExpression,
invokedExpression.getQualifierExpression().getText() + '[' + arg.getText() + ']');
}
public static int getPrecendence(GrExpression expression) {
if (expression instanceof GrThisReferenceExpression
|| expression instanceof GrLiteral
|| expression instanceof GrSuperReferenceExpression) {
return LITERAL_PRECEDENCE;
}
if (expression instanceof GrReferenceExpression) {
final GrReferenceExpression referenceExpression = (GrReferenceExpression) expression;
if (referenceExpression.getQualifierExpression() != null) {
return METHOD_CALL_PRECEDENCE;
} else {
return LITERAL_PRECEDENCE;
}
}
if (expression instanceof GrMethodCallExpression) {
return METHOD_CALL_PRECEDENCE;
}
if (expression instanceof GrTypeCastExpression || expression instanceof GrNewExpression) {
return TYPE_CAST_PRECEDENCE;
}
if (expression instanceof GrPostfixExpression) {
return POSTFIX_PRECEDENCE;
}
if (expression instanceof GrUnaryExpression) {
return PREFIX_PRECEDENCE;
}
if (expression instanceof GrBinaryExpression) {
final GrBinaryExpression binaryExpression = (GrBinaryExpression) expression;
final IElementType sign = binaryExpression.getOperationTokenType();
if (sign != null) return precedenceForBinaryOperator(sign);
}
if (expression instanceof GrConditionalExpression) {
return CONDITIONAL_PRECEDENCE;
}
if (expression instanceof GrAssignmentExpression) {
return ASSIGNMENT_PRECEDENCE;
}
if (expression instanceof GrParenthesizedExpression) {
return PARENTHESIZED_PRECEDENCE;
}
return -1;
}
@NotNull
@Override
public ThreeState shouldFocusLookup(@NotNull CompletionParameters parameters) {
final PsiElement position = parameters.getPosition();
if (position.getParent() instanceof GrReferenceElement
&& psiElement()
.afterLeaf(psiElement().withText("(").withParent(GrForStatement.class))
.accepts(position)) {
return ThreeState.NO;
}
if (position.getParent() instanceof GrReferenceExpression) {
final GrReferenceExpression ref = (GrReferenceExpression) position.getParent();
final GrExpression qualifier = ref.getQualifierExpression();
if (qualifier == null) {
if (isPossibleClosureParameter(ref)) return ThreeState.NO;
if (parameters.getOriginalFile().getUserData(GroovyShellAction.GROOVY_SHELL_FILE)
== Boolean.TRUE) {
return ThreeState.NO;
}
GrExpression runtimeQualifier = PsiImplUtil.getRuntimeQualifier(ref);
if (runtimeQualifier != null && runtimeQualifier.getType() == null) {
return ThreeState.NO;
}
return ThreeState.YES;
}
if (qualifier.getType() == null) {
return ThreeState.NO;
}
return ThreeState.YES;
}
return ThreeState.UNSURE;
}