Fix for issue 3526

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

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 package com.google.dart.compiler.parser;
 
 import com.google.common.base.Joiner;
 import com.google.dart.compiler.DartCompilerListener;
 import com.google.dart.compiler.DartSourceTest;
 import com.google.dart.compiler.ast.DartArrayLiteral;
 import com.google.dart.compiler.ast.DartBinaryExpression;
 import com.google.dart.compiler.ast.DartClass;
 import com.google.dart.compiler.ast.DartExprStmt;
 import com.google.dart.compiler.ast.DartExpression;
 import com.google.dart.compiler.ast.DartField;
 import com.google.dart.compiler.ast.DartFieldDefinition;
 import com.google.dart.compiler.ast.DartIdentifier;
 import com.google.dart.compiler.ast.DartIntegerLiteral;
 import com.google.dart.compiler.ast.DartMapLiteral;
 import com.google.dart.compiler.ast.DartMethodDefinition;
 import com.google.dart.compiler.ast.DartNode;
 import com.google.dart.compiler.ast.DartPropertyAccess;
+import com.google.dart.compiler.ast.DartReturnStatement;
 import com.google.dart.compiler.ast.DartStatement;
 import com.google.dart.compiler.ast.DartStringInterpolation;
 import com.google.dart.compiler.ast.DartStringLiteral;
 import com.google.dart.compiler.ast.DartTryStatement;
 import com.google.dart.compiler.ast.DartTypeExpression;
 import com.google.dart.compiler.ast.DartTypeNode;
+import com.google.dart.compiler.ast.DartUnaryExpression;
 import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.ast.DartVariableStatement;
 
 import java.util.List;
 
 public class SyntaxTest extends AbstractParserTest {
 
   /**
    * There was bug when "identA.identB" always considered as constructor declaration. But it can be
    * constructor only if "identA" is name of enclosing class.
@@ skipping 390 matching lines @@
     DartMethodDefinition F_negate = (DartMethodDefinition)F.getMembers().get(0);
     assertEquals("negate", ((DartIdentifier)F_negate.getName()).getName());
     DartMethodDefinition F_plus = (DartMethodDefinition)F.getMembers().get(1);
     assertEquals("+", ((DartIdentifier)F_plus.getName()).getName());
     DartMethodDefinition F_access = (DartMethodDefinition)F.getMembers().get(2);
     assertEquals("[]", ((DartIdentifier)F_access.getName()).getName());
     DartMethodDefinition F_access_assign = (DartMethodDefinition)F.getMembers().get(3);
     assertEquals("[]=", ((DartIdentifier)F_access_assign.getName()).getName());
   }
 
+  public void test_super_operator() {
+    DartUnit unit = parseUnit("phony_super.dart", Joiner.on("\n").join(
+        "class A {",
+        "  void m() {",
+        "    --super;",
+        "  }",
+        "}"));
+    List<DartNode> nodes = unit.getTopLevelNodes();
+    assertEquals(1, nodes.size());
+    DartClass A = (DartClass) nodes.get(0);
+    DartMethodDefinition m = (DartMethodDefinition) A.getMembers().get(0);
+    DartExprStmt statement = (DartExprStmt) m.getFunction().getBody().getStatements().get(0);
+    DartUnaryExpression value = (DartUnaryExpression) statement.getExpression();
+    assertEquals(Token.SUB, value.getOperator());
+    DartUnaryExpression inner = (DartUnaryExpression) value.getArg();
+    assertEquals(Token.SUB, inner.getOperator());
+  }
+
   /**
    * Typedef and interface are top level keywords that are also valid as identifiers.
    *
    * This test helps insure that the error recovery logic in the parser that detects
    * top level keywords out of place doesn't break this functionality.
    */
   public void testTopLevelKeywordsAsIdent() {
     parseUnit("phony_pseudokeyword_methods.dart",
         Joiner.on("\n").join(
             "var interface;",
@@ skipping 117 matching lines @@
     parseUnit("phony_bogus_escaped_newline.dart",
         Joiner.on("\n").join(
             "class A {",
             "  var foo = \"not really multiline\\\n",
             "\";",
             "}"),
             ParserErrorCode.UNEXPECTED_TOKEN,  2, 13,
             ParserErrorCode.EXPECTED_TOKEN,  4, 1);
   }
 }