@Nullable
private static PsiType getTypeFromClassRef(@NotNull GrReferenceExpressionImpl ref) {
if ("class".equals(ref.getReferenceName())) {
return TypesUtil.createJavaLangClassType(
GrReferenceResolveUtil.getQualifierType(ref), ref.getProject(), ref.getResolveScope());
}
return null;
}
private static PsiType doFun(GrReferenceExpression refExpr) {
if (ResolveUtil.isClassReference(refExpr)) {
GrExpression qualifier = refExpr.getQualifier();
LOG.assertTrue(qualifier != null);
return TypesUtil.createJavaLangClassType(
qualifier.getType(), refExpr.getProject(), refExpr.getResolveScope());
}
if (PsiUtil.isCompileStatic(refExpr)) {
final GroovyResolveResult resolveResult = refExpr.advancedResolve();
final PsiElement resolvedF = resolveResult.getElement();
final PsiType type;
if (resolvedF instanceof GrField) {
type = ((GrField) resolvedF).getType();
} else if (resolvedF instanceof GrAccessorMethod) {
type = ((GrAccessorMethod) resolvedF).getProperty().getType();
} else {
type = null;
}
if (type != null) {
return resolveResult.getSubstitutor().substitute(type);
}
}
final PsiElement resolved = refExpr.resolve();
final PsiType nominal = refExpr.getNominalType();
Boolean reassigned = GrReassignedLocalVarsChecker.isReassignedVar(refExpr);
if (reassigned != null && reassigned.booleanValue()) {
return GrReassignedLocalVarsChecker.getReassignedVarType(refExpr, true);
}
final PsiType inferred = getInferredTypes(refExpr, resolved);
if (inferred == null) {
if (nominal == null) {
// inside nested closure we could still try to infer from variable initializer. Not sound,
// but makes sense
if (resolved instanceof GrVariable) {
LOG.assertTrue(resolved.isValid());
return ((GrVariable) resolved).getTypeGroovy();
}
}
return nominal;
}
if (nominal == null) return inferred;
if (!TypeConversionUtil.isAssignable(TypeConversionUtil.erasure(nominal), inferred, false)) {
if (resolved instanceof GrVariable
&& ((GrVariable) resolved).getTypeElementGroovy() != null) {
return nominal;
}
}
return inferred;
}
@Nullable
public PsiType fun(GrReferenceExpressionImpl refExpr) {
PsiType result = GrReassignedLocalVarsChecker.checkReassignedVar(refExpr, true);
if (result != null) return result;
if (GrUnresolvedAccessInspection.isClassReference(refExpr)) {
GrExpression qualifier = refExpr.getQualifier();
LOG.assertTrue(qualifier != null);
return TypesUtil.createJavaLangClassType(
qualifier.getType(), refExpr.getProject(), refExpr.getResolveScope());
}
final PsiElement resolved = refExpr.resolve();
final PsiType inferred = getInferredTypes(refExpr, resolved);
final PsiType nominal = refExpr.getNominalType();
if (inferred == null || PsiType.NULL.equals(inferred)) {
if (nominal == null) {
// inside nested closure we could still try to infer from variable initializer. Not sound,
// but makes sense
if (resolved instanceof GrVariable) {
LOG.assertTrue(resolved.isValid());
return ((GrVariable) resolved).getTypeGroovy();
}
}
return nominal;
}
if (nominal == null) return inferred;
if (!TypeConversionUtil.isAssignable(TypeConversionUtil.erasure(nominal), inferred, false)) {
if (resolved instanceof GrVariable
&& ((GrVariable) resolved).getTypeElementGroovy() != null) {
return nominal;
}
}
return inferred;
}
@Nullable
private PsiType getNominalTypeInner(PsiElement resolved) {
if (resolved == null && !"class".equals(getReferenceName())) {
resolved = resolve();
}
if (resolved instanceof PsiClass) {
final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
if (PsiUtil.isInstanceThisRef(this)) {
final PsiClassType categoryType = GdkMethodUtil.getCategoryType((PsiClass) resolved);
if (categoryType != null) {
return categoryType;
} else {
return factory.createType((PsiClass) resolved);
}
}
if (getParent() instanceof GrReferenceExpression || PsiUtil.isSuperReference(this)) {
return factory.createType((PsiClass) resolved);
} else {
return TypesUtil.createJavaLangClassType(
factory.createType((PsiClass) resolved), getProject(), getResolveScope());
}
}
if (resolved instanceof GrVariable) {
return ((GrVariable) resolved).getDeclaredType();
}
if (resolved instanceof PsiVariable) {
return ((PsiVariable) resolved).getType();
}
if (resolved instanceof PsiMethod) {
PsiMethod method = (PsiMethod) resolved;
if (PropertyUtil.isSimplePropertySetter(method)
&& !method.getName().equals(getReferenceName())) {
return method.getParameterList().getParameters()[0].getType();
}
// 'class' property with explicit generic
PsiClass containingClass = method.getContainingClass();
if (containingClass != null
&& CommonClassNames.JAVA_LANG_OBJECT.equals(containingClass.getQualifiedName())
&& "getClass".equals(method.getName())) {
return TypesUtil.createJavaLangClassType(
GrReferenceResolveUtil.getQualifierType(this), getProject(), getResolveScope());
}
return PsiUtil.getSmartReturnType(method);
}
if (resolved instanceof GrReferenceExpression) {
PsiElement parent = resolved.getParent();
if (parent instanceof GrAssignmentExpression) {
GrAssignmentExpression assignment = (GrAssignmentExpression) parent;
if (resolved.equals(assignment.getLValue())) {
GrExpression rValue = assignment.getRValue();
if (rValue != null) {
PsiType rType = rValue.getType();
if (rType != null) {
return rType;
}
}
}
}
}
if (resolved == null) {
final PsiType fromClassRef = getTypeFromClassRef(this);
if (fromClassRef != null) {
return fromClassRef;
}
final PsiType fromMapAccess = getTypeFromMapAccess(this);
if (fromMapAccess != null) {
return fromMapAccess;
}
final PsiType fromSpreadOperator = getTypeFromSpreadOperator(this);
if (fromSpreadOperator != null) {
return fromSpreadOperator;
}
}
return null;
}
@Override
public PsiType fun(GrIndexPropertyImpl index) {
GrExpression selected = index.getInvokedExpression();
PsiType thisType = selected.getType();
if (thisType == null) return null;
GrArgumentList argList = index.getArgumentList();
PsiType[] argTypes = PsiUtil.getArgumentTypes(argList);
if (argTypes == null) return null;
final PsiManager manager = index.getManager();
final GlobalSearchScope resolveScope = index.getResolveScope();
if (argTypes.length == 0) {
PsiType arrType = null;
if (selected instanceof GrBuiltinTypeClassExpression) {
arrType = ((GrBuiltinTypeClassExpression) selected).getPrimitiveType();
}
if (selected instanceof GrReferenceExpression) {
final PsiElement resolved = ((GrReferenceExpression) selected).resolve();
if (resolved instanceof PsiClass) {
String qname = ((PsiClass) resolved).getQualifiedName();
if (qname != null) {
arrType = TypesUtil.createTypeByFQClassName(qname, index);
}
}
}
if (arrType != null) {
final PsiArrayType param = arrType.createArrayType();
return TypesUtil.createJavaLangClassType(param, index.getProject(), resolveScope);
}
}
if (PsiImplUtil.isSimpleArrayAccess(
thisType, argTypes, manager, resolveScope, PsiUtil.isLValue(index))) {
return TypesUtil.boxPrimitiveType(
((PsiArrayType) thisType).getComponentType(), manager, resolveScope);
}
final GroovyResolveResult[] candidates = index.multiResolve(false);
PsiType[] args =
PsiUtil.getArgumentTypes(
argList.getNamedArguments(),
argList.getExpressionArguments(),
GrClosableBlock.EMPTY_ARRAY,
true,
null,
false);
final GroovyResolveResult candidate = PsiImplUtil.extractUniqueResult(candidates);
final PsiElement element = candidate.getElement();
if (element instanceof PsiNamedElement) {
final String name = ((PsiNamedElement) element).getName();
if ("putAt".equals(name) && args != null) {
args =
ArrayUtil.append(
args, TypeInferenceHelper.getInitializerFor(index), PsiType.class);
}
}
PsiType overloadedOperatorType =
ResolveUtil.extractReturnTypeFromCandidate(candidate, index, args);
PsiType componentType = extractMapValueType(thisType, args, manager, resolveScope);
if (overloadedOperatorType != null
&& (componentType == null
|| !TypesUtil.isAssignable(
overloadedOperatorType, componentType, manager, resolveScope))) {
return TypesUtil.boxPrimitiveType(overloadedOperatorType, manager, resolveScope);
}
return componentType;
}
@Nullable
private PsiType getNominalTypeInner(@Nullable PsiElement resolved) {
if (resolved == null && !"class".equals(getReferenceName())) {
resolved = resolve();
}
if (resolved instanceof PsiClass) {
final PsiElementFactory factory = JavaPsiFacade.getInstance(getProject()).getElementFactory();
if (PsiUtil.isInstanceThisRef(this)) {
final PsiClassType categoryType = GdkMethodUtil.getCategoryType((PsiClass) resolved);
if (categoryType != null) {
return categoryType;
} else {
return factory.createType((PsiClass) resolved);
}
} else if (PsiUtil.isSuperReference(this)) {
PsiClass contextClass = PsiUtil.getContextClass(this);
if (GrTraitUtil.isTrait(contextClass)) {
PsiClassType[] extendsTypes = contextClass.getExtendsListTypes();
PsiClassType[] implementsTypes = contextClass.getImplementsListTypes();
PsiClassType[] superTypes =
ArrayUtil.mergeArrays(implementsTypes, extendsTypes, PsiClassType.ARRAY_FACTORY);
return PsiIntersectionType.createIntersection(ArrayUtil.reverseArray(superTypes));
}
return factory.createType((PsiClass) resolved);
}
if (getParent() instanceof GrReferenceExpression) {
return factory.createType((PsiClass) resolved);
} else {
return TypesUtil.createJavaLangClassType(
factory.createType((PsiClass) resolved), getProject(), getResolveScope());
}
}
if (resolved instanceof GrVariable) {
return ((GrVariable) resolved).getDeclaredType();
}
if (resolved instanceof PsiVariable) {
return ((PsiVariable) resolved).getType();
}
if (resolved instanceof PsiMethod) {
PsiMethod method = (PsiMethod) resolved;
if (PropertyUtil.isSimplePropertySetter(method)
&& !method.getName().equals(getReferenceName())) {
return method.getParameterList().getParameters()[0].getType();
}
// 'class' property with explicit generic
PsiClass containingClass = method.getContainingClass();
if (containingClass != null
&& CommonClassNames.JAVA_LANG_OBJECT.equals(containingClass.getQualifiedName())
&& "getClass".equals(method.getName())) {
return TypesUtil.createJavaLangClassType(
PsiImplUtil.getQualifierType(this), getProject(), getResolveScope());
}
return PsiUtil.getSmartReturnType(method);
}
if (resolved == null) {
final PsiType fromClassRef = getTypeFromClassRef(this);
if (fromClassRef != null) {
return fromClassRef;
}
final PsiType fromMapAccess = getTypeFromMapAccess(this);
if (fromMapAccess != null) {
return fromMapAccess;
}
final PsiType fromSpreadOperator = getTypeFromSpreadOperator(this);
if (fromSpreadOperator != null) {
return fromSpreadOperator;
}
}
return null;
}