Fixed Bug 421902 - [1.8][reconciler] Deleting an interface declaration

shows no errors on uses of the interface 

2 files changed, 61 insertions, 1 deletions

diff --git a/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ReconcilerTests.java b/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ReconcilerTests.java
index 74297dda7d..1b7c53069a 100644
--- a/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ReconcilerTests.java
+++ b/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ReconcilerTests.java
@@ -5452,4 +5452,41 @@ public void testBug374176b() throws CoreException, IOException, InterruptedExcep
 			deleteProject(project15);
 	}
 }
+public void testSecondaryTypeDeletion() throws CoreException, IOException {
+	
+	// Set working copy content with no error
+	setUpWorkingCopy("/Reconciler/src/X.java",
+			"interface I {\n" +
+					"	void foo();\n" +
+					"}\n" +
+					"public class X {\n" +
+					"	static void goo(I i) {\n" +
+					"	}\n" +
+					"}\n"
+			);
+	assertProblems(
+			"Unexpected problems",
+			"----------\n" +
+			"----------\n"
+			);
+
+	String contents = 
+					"public class X {\n" +
+					"	static void goo(I i) {\n" +
+					"	}\n" +
+					"}\n";
+	
+	setWorkingCopyContents(contents);
+	this.workingCopy.reconcile(ICompilationUnit.NO_AST, true, null, null);
+	assertProblems(
+			"Wrong expected problems",
+			"----------\n" + 
+			"1. ERROR in /Reconciler/src/X.java (at line 2)\n" + 
+			"	static void goo(I i) {\n" + 
+			"	                ^\n" + 
+			"I cannot be resolved to a type\n" + 
+			"----------\n"
+			);
+	
 }
+}
\ No newline at end of file
diff --git a/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/NameLookup.java b/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/NameLookup.java
index ebfb67b19c..130d7b96fd 100644
--- a/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/NameLookup.java
+++ b/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/NameLookup.java
@@ -1,9 +1,13 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2012 IBM Corporation and others.
+ * Copyright (c) 2000, 2013 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * This is an implementation of an early-draft specification developed under the Java
+ * Community Process (JCP) and is made available for testing and evaluation purposes
+ * only. The code is not compatible with any specification of the JCP.
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
@@ -702,6 +706,25 @@ public class NameLookup implements SuffixConstants {
 				}
 			}
 		}
+		if (type != null) {
+			ICompilationUnit unit = type.getCompilationUnit();
+			if (unit != null && unit.isWorkingCopy()) { // https://bugs.eclipse.org/bugs/show_bug.cgi?id=421902
+				IType[] types = null;
+				try {
+					types = unit.getTypes();
+				} catch (JavaModelException e) {
+					return null;
+				}
+				boolean typeFound = false;
+				for (int i = 0, typesLength = types == null ? 0 : types.length; i < typesLength; i++) {
+					if (types[i].getElementName().equals(typeName)) {
+						typeFound = true;
+						break;
+					}
+				}
+				if (!typeFound) type = null;
+			}
+		}
 		return type == null ? null : new Answer(type, null);
 	}