1 files changed, 72 insertions, 0 deletions
diff --git a/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethodCompletionProposalPortal.java b/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethodCompletionProposalPortal.java
new file mode 100644
index 00000000..29aedc81
--- /dev/null
+++ b/src/eclipseAgent/lombok/eclipse/agent/PatchExtensionMethodCompletionProposalPortal.java
@@ -0,0 +1,72 @@
+/*
+ * 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.ui.text.java.IJavaCompletionProposal;
+
+import lombok.Lombok;
+
+
+public class PatchExtensionMethodCompletionProposalPortal {
+	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 IJavaCompletionProposal[] getJavaCompletionProposals(Object[] javaCompletionProposals, Object completionProposalCollector) {
+		try {
+			return (IJavaCompletionProposal[]) ReflectionForUi.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 (IJavaCompletionProposal[]) javaCompletionProposals;
+		} catch (IllegalAccessException e) {
+			throw Lombok.sneakyThrow(e);
+		} catch (InvocationTargetException e) {
+			throw Lombok.sneakyThrow(e);
+		} catch (NullPointerException e) {
+			e.initCause(ReflectionForUi.problem);
+			throw e;
+		}
+	}
+	
+	private static final class ReflectionForUi {
+		public static final Method getJavaCompletionProposals;
+		public static final Throwable problem;
+		
+		static {
+			Method p = null;
+			Throwable problem_ = null;
+			try {
+				p = PatchExtensionMethodCompletionProposal.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;
+			}
+			getJavaCompletionProposals = p;
+			problem = problem_;
+		}
+	}
+}