Check for abstract method with body and top-level abstract elements, issue 871

compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java

Index: compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java b/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
index 66518253982275eacbd6b499a7fcaad016b2addc..a5ff8c4af248580843b684ff4edc06a9982a7847 100644
--- a/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
+++ b/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
@@ -200,7 +200,6 @@ public class NegativeParserTest extends CompilerTestCase {
         errEx(ParserErrorCode.EXPECTED_EXTENDS, 3, 11, 2),
         errEx(ParserErrorCode.EXPECTED_EXTENDS, 5, 11, 7),
         errEx(ParserErrorCode.EXPECTED_EXTENDS, 7, 11, 7));
-
     // check structure of AST
     DartUnit dartUnit = parserRunner.getDartUnit();
     String expected =
@@ -299,12 +298,13 @@ public class NegativeParserTest extends CompilerTestCase {
   }
 
   public void testReservedWordClass() {
-    parseExpectErrors(Joiner.on("\n").join(
-        "class foo {}",
-        "main() {",
-        "  int class = 10;",
-        "  print(\"class = $class\");",
-        "}"),
+    parseExpectErrors(
+        Joiner.on("\n").join(
+            "class foo {}",
+            "main() {",
+            "  int class = 10;",
+            "  print(\"class = $class\");",
+            "}"),
         errEx(ParserErrorCode.EXPECTED_TOKEN, 3, 7, 5),
         errEx(ParserErrorCode.UNEXPECTED_TOKEN, 4, 19, 5));
   }
@@ -338,7 +338,46 @@ public class NegativeParserTest extends CompilerTestCase {
 
   public void tstDeprecatedFactoryInInterface() {
     parseExpectErrors(
-       "interface foo factory bar {}",
-       errEx(ParserErrorCode.DEPRECATED_USE_OF_FACTORY_KEYWORD, 1, 15, 8));
+        "interface foo factory bar {}",
+        errEx(ParserErrorCode.DEPRECATED_USE_OF_FACTORY_KEYWORD, 1, 15, 8));
+  }
+
+  public void test_abstractTopLevel_class() {
+    parseExpectErrors(Joiner.on("\n").join(
+        "// filler filler filler filler filler filler filler filler filler filler",
+        "abstract class A {",
+        "}"));
+  }
+
+  public void test_abstractTopLevel_interface() {
+    parseExpectErrors(
+        Joiner.on("\n").join(
+            "// filler filler filler filler filler filler filler filler filler filler",
+            "abstract interface A {",
+            "}"),
+        errEx(ParserErrorCode.ABSTRACT_TOP_LEVEL_ELEMENT, 2, 1, 8));
+  }
+
+  public void test_abstractTopLevel_typedef() {
+    parseExpectErrors(
+        "abstract typedef void f();",
+        errEx(ParserErrorCode.ABSTRACT_TOP_LEVEL_ELEMENT, 1, 1, 8));
+  }
+
+  public void test_abstractTopLevel_method() {
+    parseExpectErrors(
+        "abstract void foo() {}",
+        errEx(ParserErrorCode.ABSTRACT_TOP_LEVEL_ELEMENT, 1, 1, 8));
+  }
+
+  public void test_abstractMethodWithBody() {
+    parseExpectErrors(
+        Joiner.on("\n").join(
+            "// filler filler filler filler filler filler filler filler filler filler",
+            "class A {",
+            "  abstract foo() {",
+            "  }",
+            "}"),
+        errEx(ParserErrorCode.ABSTRACT_METHOD_WITH_BODY, 3, 3, 8));
   }
 }