private static void loadExplicitArgumentsOnStack(
@NotNull Type ownerType,
boolean isStatic,
@NotNull JvmMethodSignature signature,
@NotNull CallGenerator callGenerator) {
int var = 0;
if (!isStatic) {
callGenerator.putValueIfNeeded(ownerType, StackValue.local(var, ownerType));
var += ownerType.getSize();
}
for (JvmMethodParameterSignature parameterSignature : signature.getValueParameters()) {
if (parameterSignature.getKind() != JvmMethodParameterKind.VALUE) {
Type type = parameterSignature.getAsmType();
callGenerator.putValueIfNeeded(type, StackValue.local(var, type));
var += type.getSize();
}
}
}
private static void generateLocalVariableTable(
@NotNull MethodVisitor mv,
@NotNull JvmMethodSignature jvmMethodSignature,
@NotNull FunctionDescriptor functionDescriptor,
@Nullable Type thisType,
@NotNull Label methodBegin,
@NotNull Label methodEnd,
@NotNull OwnerKind ownerKind) {
Iterator<ValueParameterDescriptor> valueParameters =
functionDescriptor.getValueParameters().iterator();
List<JvmMethodParameterSignature> params = jvmMethodSignature.getValueParameters();
int shift = 0;
boolean isStatic = AsmUtil.isStaticMethod(ownerKind, functionDescriptor);
if (!isStatic) {
// add this
if (thisType != null) {
mv.visitLocalVariable(
"this", thisType.getDescriptor(), null, methodBegin, methodEnd, shift);
} else {
// TODO: provide thisType for callable reference
}
shift++;
}
for (int i = 0; i < params.size(); i++) {
JvmMethodParameterSignature param = params.get(i);
JvmMethodParameterKind kind = param.getKind();
String parameterName;
if (kind == JvmMethodParameterKind.VALUE) {
ValueParameterDescriptor parameter = valueParameters.next();
parameterName = parameter.getName().asString();
} else {
String lowercaseKind = kind.name().toLowerCase();
parameterName = needIndexForVar(kind) ? "$" + lowercaseKind + "$" + i : "$" + lowercaseKind;
}
Type type = param.getAsmType();
mv.visitLocalVariable(
parameterName, type.getDescriptor(), null, methodBegin, methodEnd, shift);
shift += type.getSize();
}
}
private static void generateDelegateToMethodBody(
boolean isStatic,
@NotNull MethodVisitor mv,
@NotNull Method asmMethod,
@NotNull String classToDelegateTo) {
InstructionAdapter iv = new InstructionAdapter(mv);
Type[] argTypes = asmMethod.getArgumentTypes();
// The first line of some package file is written to the line number attribute of a static
// delegate to allow to 'step into' it
// This is similar to what javac does with bridge methods
Label label = new Label();
iv.visitLabel(label);
iv.visitLineNumber(1, label);
int k = isStatic ? 0 : 1;
for (Type argType : argTypes) {
iv.load(k, argType);
k += argType.getSize();
}
iv.invokestatic(classToDelegateTo, asmMethod.getName(), asmMethod.getDescriptor(), false);
iv.areturn(asmMethod.getReturnType());
}
