1 files changed, 103 insertions, 0 deletions
diff --git a/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethodPortal.java b/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethodPortal.java
new file mode 100644
index 00000000..02e4e123
--- /dev/null
+++ b/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethodPortal.java
@@ -0,0 +1,103 @@
+package lombok.eclipse.agent;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import lombok.Lombok;
+
+import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
+
+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 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) {
+			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 (TypeBinding)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) {
+			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.
+		}
+	}
+
+	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", 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));
+			} 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_;
+		}
+	}
+}