/**
* Turn a {@link ClassFile.MethodInfo} into an {@link IInvocable}. This includes the checking and
* the removal of the magic first parameter of an inner class constructor.
*
* @param methodInfo
* @throws ClassNotFoundException
*/
private IInvocable resolveMethod(final ClassFile.MethodInfo methodInfo)
throws ClassNotFoundException {
IInvocable result = (IInvocable) this.resolvedMethods.get(methodInfo);
if (result != null) return result;
// Determine method name.
final String name = methodInfo.getName();
// Determine return type.
MethodDescriptor md = new MethodDescriptor(methodInfo.getDescriptor());
final IClass returnType = this.resolveClass(md.returnFd);
// Determine parameter types.
final IClass[] parameterTypes = new IClass[md.parameterFds.length];
for (int i = 0; i < parameterTypes.length; ++i)
parameterTypes[i] = this.resolveClass(md.parameterFds[i]);
// Determine thrown exceptions.
IClass[] tes = null;
ClassFile.AttributeInfo[] ais = methodInfo.getAttributes();
for (ClassFile.AttributeInfo ai : ais) {
if (ai instanceof ClassFile.ExceptionsAttribute) {
ConstantClassInfo[] ccis =
((ClassFile.ExceptionsAttribute) ai).getExceptions(this.classFile);
tes = new IClass[ccis.length];
for (int i = 0; i < tes.length; ++i) {
tes[i] = this.resolveClass(Descriptor.fromInternalForm(ccis[i].getName(this.classFile)));
}
}
}
final IClass[] thrownExceptions = tes == null ? new IClass[0] : tes;
// Determine access.
final Access access = ClassFileIClass.accessFlags2Access(methodInfo.getModifierFlags());
if ("<init>".equals(name)) {
result =
new IClass.IConstructor() {
@Override
public boolean isVarargs() {
return Mod.isVarargs(methodInfo.getModifierFlags());
}
@Override
public IClass[] getParameterTypes2() throws CompileException {
// Process magic first parameter of inner class constructor.
IClass outerIClass = ClassFileIClass.this.getOuterIClass();
if (outerIClass != null) {
if (parameterTypes.length < 1) {
throw new JaninoRuntimeException(
"Inner class constructor lacks magic first parameter");
}
if (parameterTypes[0] != outerIClass) {
throw new JaninoRuntimeException(
"Magic first parameter of inner class constructor has type \""
+ parameterTypes[0].toString()
+ "\" instead of that of its enclosing instance (\""
+ outerIClass.toString()
+ "\")");
}
IClass[] tmp = new IClass[parameterTypes.length - 1];
System.arraycopy(parameterTypes, 1, tmp, 0, tmp.length);
return tmp;
}
return parameterTypes;
}
@Override
public IClass[] getThrownExceptions2() {
return thrownExceptions;
}
@Override
public Access getAccess() {
return access;
}
@Override
public Java.Annotation[] getAnnotations() {
return methodInfo.getAnnotations();
}
};
} else {
result =
new IClass.IMethod() {
@Override
public String getName() {
return name;
}
@Override
public IClass getReturnType() {
return returnType;
}
@Override
public boolean isStatic() {
return Mod.isStatic(methodInfo.getModifierFlags());
}
@Override
public boolean isAbstract() {
return Mod.isAbstract(methodInfo.getModifierFlags());
}
@Override
public boolean isVarargs() {
return Mod.isVarargs(methodInfo.getModifierFlags());
}
@Override
public IClass[] getParameterTypes2() {
return parameterTypes;
}
@Override
public IClass[] getThrownExceptions2() {
return thrownExceptions;
}
@Override
public Access getAccess() {
return access;
}
@Override
public Java.Annotation[] getAnnotations() {
return methodInfo.getAnnotations();
}
};
}
this.resolvedMethods.put(methodInfo, result);
return result;
}
/** @param index Index of the CONSTANT_Class_info to resolve (JVMS 4.4.1) */
private IClass resolveClass(short index) throws ClassNotFoundException {
ClassFileIClass.LOGGER.entering(null, "resolveClass", index);
ConstantClassInfo cci = (ConstantClassInfo) this.classFile.getConstantPoolInfo(index);
return this.resolveClass(Descriptor.fromInternalForm(cci.getName(this.classFile)));
}