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/*
* Copyright (C) 2012 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.eclipse.agent;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
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";
private static final String COMPLETION_PROPOSAL_COLLECTOR = "org.eclipse.jdt.ui.text.java.CompletionProposalCollector";
private static final String I_JAVA_COMPLETION_PROPOSAL_ARRAY = "[Lorg.eclipse.jdt.ui.text.java.IJavaCompletionProposal;";
public static TypeBinding resolveType(Object resolvedType, Object methodCall, Object scope) {
try {
return (TypeBinding) 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 (TypeBinding) resolvedType;
} catch (IllegalAccessException e) {
throw Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
throw Lombok.sneakyThrow(e);
} catch (NullPointerException e) {
e.initCause(Reflection.problem);
throw e;
}
}
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) {
Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
Lombok.sneakyThrow(e);
} catch (NullPointerException e) {
e.initCause(Reflection.problem);
throw e;
}
}
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) {
Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
Lombok.sneakyThrow(e);
} catch (NullPointerException e) {
e.initCause(Reflection.problem);
throw e;
}
}
public static Object getJavaCompletionProposals(Object[] javaCompletionProposals, Object completionProposalCollector) {
try {
return Reflection.getJavaCompletionProposals.invoke(null, javaCompletionProposals, completionProposalCollector);
} catch (NoClassDefFoundError e) {
//ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
//do anything useful here.
return javaCompletionProposals;
} catch (IllegalAccessException e) {
throw Lombok.sneakyThrow(e);
} catch (InvocationTargetException e) {
throw Lombok.sneakyThrow(e);
} catch (NullPointerException e) {
e.initCause(Reflection.problem);
throw e;
}
}
private static final class Reflection {
public static final Method resolveType, errorNoMethodFor, invalidMethod, getJavaCompletionProposals;
public static final Throwable problem;
static {
Method m = null, n = null, o = null, p = null;
Throwable problem_ = null;
try {
m = PatchExtensionMethod.class.getMethod("resolveType", Class.forName(TYPE_BINDING), 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));
p = PatchExtensionMethod.class.getMethod("getJavaCompletionProposals", Class.forName(I_JAVA_COMPLETION_PROPOSAL_ARRAY), Class.forName(COMPLETION_PROPOSAL_COLLECTOR));
} 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;
getJavaCompletionProposals = p;
problem = problem_;
}
}
}
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