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package lombok.eclipse.agent;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import lombok.Lombok;
public class PatchExtensionMethodPortal {
private static final String TYPE_BINDING = "org.eclipse.jdt.internal.compiler.lookup.TypeBinding";
private static final String TYPE_BINDING_ARRAY = "[Lorg.eclipse.jdt.internal.compiler.lookup.TypeBinding;";
private static final String MESSAGE_SEND = "org.eclipse.jdt.internal.compiler.ast.MessageSend";
private static final String BLOCK_SCOPE = "org.eclipse.jdt.internal.compiler.lookup.BlockScope";
private static final String METHOD_BINDING = "org.eclipse.jdt.internal.compiler.lookup.MethodBinding";
private static final String PROBLEM_REPORTER = "org.eclipse.jdt.internal.compiler.problem.ProblemReporter";
public static Object resolveType(Object resolvedType, Object methodCall, Object scope) {
try {
return Reflection.resolveType.invoke(null, resolvedType, methodCall, scope);
} catch (NoClassDefFoundError e) {
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
return resolvedType;
} catch (IllegalAccessException e) {
throw Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
throw Lombok.sneakyThrow(e);
} catch (NullPointerException e) {
if (!"false".equals(System.getProperty("lombok.debug.reflection", "false"))) {
e.initCause(Reflection.problem);
throw e;
}
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
return resolvedType;
}
}
public static void errorNoMethodFor(Object problemReporter, Object messageSend, Object recType, Object params) {
try {
Reflection.errorNoMethodFor.invoke(null, problemReporter, messageSend, recType, params);
} catch (NoClassDefFoundError e) {
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
} catch (IllegalAccessException e) {
throw Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
throw Lombok.sneakyThrow(e.getCause());
} catch (NullPointerException e) {
if (!"false".equals(System.getProperty("lombok.debug.reflection", "false"))) {
e.initCause(Reflection.problem);
throw e;
}
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
}
}
public static void invalidMethod(Object problemReporter, Object messageSend, Object method) {
try {
Reflection.invalidMethod.invoke(null, problemReporter, messageSend, method);
} catch (NoClassDefFoundError e) {
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
} catch (IllegalAccessException e) {
handleReflectionDebug(e);
throw Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
handleReflectionDebug(e.getCause());
throw Lombok.sneakyThrow(e.getCause());
} catch (NullPointerException e) {
handleReflectionDebug(e);
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
}
}
public static boolean isDebugReflection() {
return !"false".equals(System.getProperty("lombok.debug.reflection", "false"));
}
public static void handleReflectionDebug(Throwable t) {
if (!isDebugReflection()) return;
System.err.println("** LOMBOK REFLECTION exception: " + t.getClass() + ": " + (t.getMessage() == null ? "(no message)" : t.getMessage()));
t.printStackTrace(System.err);
if (Reflection.problem != null) {
System.err.println("*** ADDITIONALLY, exception occurred setting up reflection: ");
Reflection.problem.printStackTrace(System.err);
}
}
private static final class Reflection {
public static final Method resolveType, errorNoMethodFor, invalidMethod;
public static final Throwable problem;
static {
Method m = null, n = null, o = null;
Throwable problem_ = null;
try {
m = PatchExtensionMethod.class.getMethod("resolveType", Object.class, Class.forName(MESSAGE_SEND), Class.forName(BLOCK_SCOPE));
n = PatchExtensionMethod.class.getMethod("errorNoMethodFor", Class.forName(PROBLEM_REPORTER),
Class.forName(MESSAGE_SEND), Class.forName(TYPE_BINDING), Class.forName(TYPE_BINDING_ARRAY));
o = PatchExtensionMethod.class.getMethod("invalidMethod", Class.forName(PROBLEM_REPORTER), Class.forName(MESSAGE_SEND), Class.forName(METHOD_BINDING));
} catch (Throwable t) {
// That's problematic, but as long as no local classes are used we don't actually need it.
// Better fail on local classes than crash altogether.
problem_ = t;
}
resolveType = m;
errorNoMethodFor = n;
invalidMethod = o;
problem = problem_;
}
}
}
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