From afceb138e6e4ca2dca0f16fd5297d7451f5f4e80 Mon Sep 17 00:00:00 2001
From: Rawi01 <Rawi01@users.noreply.github.com>
Date: Mon, 20 Mar 2023 21:46:25 +0100
Subject: [fixes #3373] Find references for extension methods

---
 src/eclipseAgent/lombok/eclipse/agent/EclipsePatcher.java   |  7 +++++++
 .../lombok/eclipse/agent/PatchExtensionMethod.java          | 13 +++++++++++++
 src/eclipseAgent/lombok/launch/PatchFixesHider.java         |  6 ++++++
 3 files changed, 26 insertions(+)

(limited to 'src/eclipseAgent')

diff --git a/src/eclipseAgent/lombok/eclipse/agent/EclipsePatcher.java b/src/eclipseAgent/lombok/eclipse/agent/EclipsePatcher.java
index c0bfbe09..aa548af0 100644
--- a/src/eclipseAgent/lombok/eclipse/agent/EclipsePatcher.java
+++ b/src/eclipseAgent/lombok/eclipse/agent/EclipsePatcher.java
@@ -918,6 +918,13 @@ public class EclipsePatcher implements AgentLauncher.AgentLaunchable {
 			.request(StackRequest.THIS)
 			.wrapMethod(new Hook(PATCH_EXTENSIONMETHOD_COMPLETIONPROPOSAL_PORTAL, "getJavaCompletionProposals", I_JAVA_COMPLETION_PROPOSAL_SIG, "java.lang.Object[]", "java.lang.Object"))
 			.build());
+		
+		sm.addScriptIfWitness(OSGI_TYPES, ScriptBuilder.wrapReturnValue()
+			.target(new MethodTarget("org.eclipse.jdt.core.search.SearchPattern", "createPattern", "org.eclipse.jdt.core.search.SearchPattern", "org.eclipse.jdt.core.IJavaElement", "int", "int"))
+			.wrapMethod(new Hook(PATCH_EXTENSIONMETHOD, "modifyMethodPattern", "java.lang.Object", "java.lang.Object"))
+			.cast()
+			.request(StackRequest.RETURN_VALUE)
+			.build());
 	}
 
 	private static void patchNullCheck(ScriptManager sm) {
diff --git a/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethod.java b/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethod.java
index 7743f9c6..9b2bde60 100644
--- a/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethod.java
+++ b/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethod.java
@@ -43,6 +43,7 @@ import lombok.eclipse.handlers.EclipseHandlerUtil;
 import lombok.experimental.ExtensionMethod;
 import lombok.permit.Permit;
 
+import org.eclipse.jdt.core.search.SearchPattern;
 import org.eclipse.jdt.internal.compiler.ast.ASTNode;
 import org.eclipse.jdt.internal.compiler.ast.Annotation;
 import org.eclipse.jdt.internal.compiler.ast.ClassLiteralAccess;
@@ -66,6 +67,7 @@ import org.eclipse.jdt.internal.compiler.lookup.Scope;
 import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
 import org.eclipse.jdt.internal.compiler.lookup.TypeIds;
 import org.eclipse.jdt.internal.compiler.problem.ProblemReporter;
+import org.eclipse.jdt.internal.core.search.matching.MethodPattern;
 
 public class PatchExtensionMethod {
 	static class Extension {
@@ -378,6 +380,17 @@ public class PatchExtensionMethod {
 		MessageSend_postponedErrors.clear(methodCall);
 		return resolvedType;
 	}
+	
+	public static SearchPattern modifyMethodPattern(SearchPattern original) {
+		if (original != null && original instanceof MethodPattern) {
+			MethodPattern methodPattern = (MethodPattern) original;
+			if (methodPattern.parameterCount > 0) {
+				methodPattern.varargs = true;
+			}
+		}
+		
+		return original;
+	}
 
 	private static boolean requiresPolyBinding(Expression argument) {
 		return Reflection.isFunctionalExpression(argument) || argument instanceof ConditionalExpression && Reflection.isPolyExpression(argument);
diff --git a/src/eclipseAgent/lombok/launch/PatchFixesHider.java b/src/eclipseAgent/lombok/launch/PatchFixesHider.java
index 5404ee1d..3a8a6b88 100755
--- a/src/eclipseAgent/lombok/launch/PatchFixesHider.java
+++ b/src/eclipseAgent/lombok/launch/PatchFixesHider.java
@@ -344,6 +344,7 @@ final class PatchFixesHider {
 		private static final Method ERROR_NO_METHOD_FOR;
 		private static final Method INVALID_METHOD, INVALID_METHOD2;
 		private static final Method NON_STATIC_ACCESS_TO_STATIC_METHOD;
+		private static final Method MODIFY_METHOD_PATTERN;
 		
 		static {
 			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchExtensionMethod");
@@ -352,6 +353,7 @@ final class PatchFixesHider {
 			INVALID_METHOD = Util.findMethod(shadowed, "invalidMethod", PROBLEM_REPORTER_SIG, MESSAGE_SEND_SIG, METHOD_BINDING_SIG);
 			INVALID_METHOD2 = Util.findMethod(shadowed, "invalidMethod", PROBLEM_REPORTER_SIG, MESSAGE_SEND_SIG, METHOD_BINDING_SIG, SCOPE_SIG);
 			NON_STATIC_ACCESS_TO_STATIC_METHOD = Util.findMethod(shadowed, "nonStaticAccessToStaticMethod", PROBLEM_REPORTER_SIG, AST_NODE_SIG, METHOD_BINDING_SIG, MESSAGE_SEND_SIG);
+			MODIFY_METHOD_PATTERN = Util.findMethod(shadowed, "modifyMethodPattern", "org.eclipse.jdt.core.search.SearchPattern");
 		}
 		
 		public static Object resolveType(Object resolvedType, Object methodCall, Object scope) {
@@ -373,6 +375,10 @@ final class PatchFixesHider {
 		public static void nonStaticAccessToStaticMethod(Object problemReporter, Object location, Object method, Object messageSend) {
 			Util.invokeMethod(NON_STATIC_ACCESS_TO_STATIC_METHOD, problemReporter, location, method, messageSend);
 		}
+		
+		public static Object modifyMethodPattern(Object original) {
+			return Util.invokeMethod(MODIFY_METHOD_PATTERN, original);
+		}
 	}
 	
 	/** Contains patch code to support Javadoc for generated methods */
-- 
cgit