Make anonymous annotation behave as named ones 6763

compiler-java/src/org/eclipse/ceylon/compiler/java/codegen/ExpressionTransformer.java

@@ -8146,14 +8146,15 @@ private void putAnnotation(
         annotationSet.put(annotationClass, list.append(annotation));
     }
 
-
     public void transformAnonymousAnnotation(Tree.AnonymousAnnotation annotation, Map<Class, ListBuffer<JCAnnotation>> annos) {
-        Type docType = ((TypeDeclaration)typeFact().getLanguageModuleDeclaration("DocAnnotation")).getType();
-        JCAnnotation docAnnotation = at(annotation).Annotation(
-                makeJavaType(docType,  JT_ANNOTATION), 
-                List.<JCExpression>of(make().Assign(naming.makeUnquotedIdent("description"),
-                        transform(annotation.getStringLiteral()))));
-        putAnnotation(annos, docAnnotation, (Class)docType.getDeclaration());
+		HasErrorException firstExpressionErrorAndMarkBrokenness = errors().getFirstExpressionErrorAndMarkBrokenness(annotation);
+        if (firstExpressionErrorAndMarkBrokenness == null) {
+			Type docType = ((TypeDeclaration) typeFact().getLanguageModuleDeclaration("DocAnnotation")).getType();
+			JCAnnotation docAnnotation = at(annotation).Annotation(makeJavaType(docType, JT_ANNOTATION),
+					List.<JCExpression>of(make().Assign(naming.makeUnquotedIdent("description"),
+							transform(annotation.getStringLiteral()))));
+			putAnnotation(annos, docAnnotation, (Class) docType.getDeclaration());
+		}
     }
 
     public JCExpression makeMetaLiteralStringLiteralForAnnotation(Tree.MetaLiteral literal) {

compiler-java/src/org/eclipse/ceylon/compiler/java/codegen/recovery/DeclarationErrorVisitor.java

@@ -29,6 +29,7 @@
 import org.eclipse.ceylon.compiler.typechecker.tree.Node;
 import org.eclipse.ceylon.compiler.typechecker.tree.Tree;
 import org.eclipse.ceylon.compiler.typechecker.tree.Visitor;
+import org.eclipse.ceylon.compiler.typechecker.tree.Tree.AnonymousAnnotation;
 import org.eclipse.ceylon.model.loader.model.LazyClass;
 import org.eclipse.ceylon.model.loader.model.LazyInterface;
 import org.eclipse.ceylon.model.typechecker.model.Class;
@@ -109,7 +110,6 @@ public final void visitAny(Node that) {
      */
     private void planAccordingToErrors(Node that) {
         List<Message> errors = that.getErrors();
-
         for(Message message : errors){
             if(isError(that, message)) {
                 TransformationPlan plan;
@@ -167,6 +167,11 @@ private boolean isError(Node that, Message message) {
         }
     }
 
+    @Override
+    public void visit(AnonymousAnnotation that) {
+    	// don't go there
+    }
+
     @Override
     public void visit(Tree.Annotation that) {
         // don't go there

compiler-java/src/org/eclipse/ceylon/compiler/java/codegen/recovery/Errors.java

@@ -90,6 +90,10 @@ public TransformationPlan hasDeclarationError(Tree.Declaration node) {
         return declarationVisitor.getRecoveryPlan(node);
     }
 
+    public HasErrorException getFirstExpressionErrorAndMarkBrokenness(Tree.AnonymousAnnotation node) {
+    	 return annotateBrokenness(expressionVisitor.getFirstErrorMessage(node));
+    }
+
     /**
      * Visit the given tree of expressions returning the first error found, 
      * or null if the tree is free of errors.

compiler-java/test/src/org/eclipse/ceylon/compiler/java/test/issues/IssuesTests_6500_6999.java

@@ -32,13 +32,15 @@
 import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.TreeSet;
 import java.util.jar.JarFile;
 import java.util.zip.ZipEntry;
 
 import org.eclipse.ceylon.compiler.java.launcher.Main.ExitState;
 import org.eclipse.ceylon.compiler.java.runtime.metamodel.Metamodel;
 import org.eclipse.ceylon.compiler.java.test.CompilerError;
+import org.eclipse.ceylon.compiler.java.test.CompilerError.Classification;
 import org.eclipse.ceylon.compiler.java.test.CompilerTests;
 import org.eclipse.ceylon.compiler.java.test.ErrorCollector;
 import org.eclipse.ceylon.javax.tools.Diagnostic.Kind;
@@ -441,4 +443,13 @@ public void testBug6982() throws Throwable {
     public void testBug6997() throws Throwable {
         compareWithJavaSource("bug69xx/Bug6997");
     }
+	@Test
+	public void testBug6763() {
+		assertErrors("bug67xx/Bug6763", Collections.emptyList(), null,
+				new CompilerError(
+						Kind.ERROR,"Bug6763",1,
+						"illegal escape sequence: '\\i' is not a recognized escape sequence",
+						Classification.FRONTEND)
+				);
+	}
 }

compiler-java/test/src/org/eclipse/ceylon/compiler/java/test/issues/bug67xx/Bug6763.ceylon

@@ -0,0 +1,3 @@
+"\i"
+class C() {}
+C f(C c) => c;