@Nullable
public static JetTypeInfo getRecordedTypeInfo(
@NotNull JetExpression expression, @NotNull BindingContext context) {
if (!context.get(BindingContext.PROCESSED, expression)) return null;
DataFlowInfo dataFlowInfo = BindingContextUtilPackage.getDataFlowInfo(context, expression);
JetType type = context.get(BindingContext.EXPRESSION_TYPE, expression);
return JetTypeInfo.create(type, dataFlowInfo);
}
@Nullable
public static JetTypeInfo getRecordedTypeInfo(
@NotNull JetExpression expression, @NotNull BindingContext context) {
// noinspection ConstantConditions
if (!context.get(BindingContext.PROCESSED, expression)) return null;
// NB: should never return null if expression is already processed
JetTypeInfo result = context.get(BindingContext.EXPRESSION_TYPE_INFO, expression);
return result != null ? result : TypeInfoFactoryPackage.noTypeInfo(DataFlowInfo.EMPTY);
}
public static boolean isVarCapturedInClosure(
BindingContext bindingContext, DeclarationDescriptor descriptor) {
if (!(descriptor instanceof VariableDescriptor) || descriptor instanceof PropertyDescriptor)
return false;
VariableDescriptor variableDescriptor = (VariableDescriptor) descriptor;
return bindingContext.get(CAPTURED_IN_CLOSURE, variableDescriptor) != null
&& variableDescriptor.isVar();
}
@NotNull
public static <K, V> V getNotNull(
@NotNull BindingContext bindingContext,
@NotNull ReadOnlySlice<K, V> slice,
@NotNull K key,
@NotNull String messageIfNull) {
V value = bindingContext.get(slice, key);
if (value == null) {
throw new IllegalStateException(messageIfNull);
}
return value;
}
@Nullable
public static VariableDescriptor extractVariableDescriptorIfAny(
@NotNull BindingContext bindingContext, @Nullable JetElement element, boolean onlyReference) {
DeclarationDescriptor descriptor = null;
if (!onlyReference
&& (element instanceof JetVariableDeclaration || element instanceof JetParameter)) {
descriptor = bindingContext.get(BindingContext.DECLARATION_TO_DESCRIPTOR, element);
} else if (element instanceof JetSimpleNameExpression) {
descriptor =
bindingContext.get(BindingContext.REFERENCE_TARGET, (JetSimpleNameExpression) element);
} else if (element instanceof JetQualifiedExpression) {
descriptor =
extractVariableDescriptorIfAny(
bindingContext,
((JetQualifiedExpression) element).getSelectorExpression(),
onlyReference);
}
if (descriptor instanceof VariableDescriptor) {
return (VariableDescriptor) descriptor;
}
return null;
}
@NotNull
public static DeclarationDescriptor getEnclosingDescriptor(
@NotNull BindingContext context, @NotNull JetElement element) {
JetNamedDeclaration declaration =
PsiTreeUtil.getParentOfType(element, JetNamedDeclaration.class);
if (declaration instanceof JetFunctionLiteral) {
return getEnclosingDescriptor(context, declaration);
}
DeclarationDescriptor descriptor = context.get(DECLARATION_TO_DESCRIPTOR, declaration);
assert descriptor != null
: "No descriptor for named declaration: "
+ declaration.getText()
+ "\n(of type "
+ declaration.getClass()
+ ")";
return descriptor;
}
public static FunctionDescriptor getEnclosingFunctionDescriptor(
@NotNull BindingContext context, @NotNull JetElement element) {
JetFunction function = PsiTreeUtil.getParentOfType(element, JetFunction.class);
return (FunctionDescriptor) context.get(DECLARATION_TO_DESCRIPTOR, function);
}
@Nullable
public static ResolvedCall<ConstructorDescriptor> getDelegationConstructorCall(
@NotNull BindingContext bindingContext,
@NotNull ConstructorDescriptor constructorDescriptor) {
return bindingContext.get(CONSTRUCTOR_RESOLVED_DELEGATION_CALL, constructorDescriptor);
}