public LambdaInfo(
@NotNull KtExpression expression,
@NotNull KotlinTypeMapper typeMapper,
boolean isCrossInline,
boolean isBoundCallableReference) {
this.isCrossInline = isCrossInline;
this.expression =
expression instanceof KtLambdaExpression
? ((KtLambdaExpression) expression).getFunctionLiteral()
: expression;
this.typeMapper = typeMapper;
this.isBoundCallableReference = isBoundCallableReference;
BindingContext bindingContext = typeMapper.getBindingContext();
FunctionDescriptor function = bindingContext.get(BindingContext.FUNCTION, this.expression);
if (function == null && expression instanceof KtCallableReferenceExpression) {
VariableDescriptor variableDescriptor =
bindingContext.get(BindingContext.VARIABLE, this.expression);
assert variableDescriptor instanceof VariableDescriptorWithAccessors
: "Reference expression not resolved to variable descriptor with accessors: "
+ expression.getText();
classDescriptor =
CodegenBinding.anonymousClassForCallable(bindingContext, variableDescriptor);
closureClassType = typeMapper.mapClass(classDescriptor);
SimpleFunctionDescriptor getFunction =
PropertyReferenceCodegen.findGetFunction(variableDescriptor);
functionDescriptor =
PropertyReferenceCodegen.createFakeOpenDescriptor(getFunction, classDescriptor);
ResolvedCall<?> resolvedCall =
CallUtilKt.getResolvedCallWithAssert(
((KtCallableReferenceExpression) expression).getCallableReference(), bindingContext);
propertyReferenceInfo =
new PropertyReferenceInfo(
(VariableDescriptor) resolvedCall.getResultingDescriptor(), getFunction);
} else {
propertyReferenceInfo = null;
functionDescriptor = function;
assert functionDescriptor != null
: "Function is not resolved to descriptor: " + expression.getText();
classDescriptor = anonymousClassForCallable(bindingContext, functionDescriptor);
closureClassType = asmTypeForAnonymousClass(bindingContext, functionDescriptor);
}
closure = bindingContext.get(CLOSURE, classDescriptor);
assert closure != null : "Closure for lambda should be not null " + expression.getText();
labels = InlineCodegen.getDeclarationLabels(expression, functionDescriptor);
}
@NotNull
public List<CapturedParamDesc> getCapturedVars() {
// lazy initialization cause it would be calculated after object creation
if (capturedVars == null) {
capturedVars = new ArrayList<CapturedParamDesc>();
if (closure.getCaptureThis() != null) {
Type type = typeMapper.mapType(closure.getCaptureThis());
EnclosedValueDescriptor descriptor =
new EnclosedValueDescriptor(
AsmUtil.CAPTURED_THIS_FIELD,
/* descriptor = */ null,
StackValue.field(
type, closureClassType, AsmUtil.CAPTURED_THIS_FIELD, false, StackValue.LOCAL_0),
type);
capturedVars.add(getCapturedParamInfo(descriptor));
}
if (closure.getCaptureReceiverType() != null) {
Type type = typeMapper.mapType(closure.getCaptureReceiverType());
EnclosedValueDescriptor descriptor =
new EnclosedValueDescriptor(
AsmUtil.CAPTURED_RECEIVER_FIELD,
/* descriptor = */ null,
StackValue.field(
type,
closureClassType,
AsmUtil.CAPTURED_RECEIVER_FIELD,
false,
StackValue.LOCAL_0),
type);
capturedVars.add(getCapturedParamInfo(descriptor));
}
for (EnclosedValueDescriptor descriptor : closure.getCaptureVariables().values()) {
capturedVars.add(getCapturedParamInfo(descriptor));
}
}
return capturedVars;
}
@NotNull
public Parameters addAllParameters(@NotNull FieldRemapper remapper) {
Method asmMethod = typeMapper.mapAsmMethod(getFunctionDescriptor());
ParametersBuilder builder =
ParametersBuilder.initializeBuilderFrom(
AsmTypes.OBJECT_TYPE, asmMethod.getDescriptor(), this);
for (CapturedParamDesc info : getCapturedVars()) {
CapturedParamInfo field =
remapper.findField(
new FieldInsnNode(0, info.getContainingLambdaName(), info.getFieldName(), ""));
assert field != null
: "Captured field not found: "
+ info.getContainingLambdaName()
+ "."
+ info.getFieldName();
builder.addCapturedParam(field, info.getFieldName());
}
return builder.buildParameters();
}
@NotNull
public List<Type> getInvokeParamsWithoutCaptured() {
return Arrays.asList(typeMapper.mapAsmMethod(functionDescriptor).getArgumentTypes());
}
