8026167: Class cache/reuse of 'eval' scripts results in ClassCastException in some cases

Reviewed-by: lagergren, jlaskey

nashorn/src/jdk/nashorn/internal/codegen/CompilationPhase.java

@@ -162,7 +162,7 @@ enum CompilationPhase {
     LOWERING_PHASE(EnumSet.of(INITIALIZED, PARSED, CONSTANT_FOLDED)) {
         @Override
         FunctionNode transform(final Compiler compiler, final FunctionNode fn) {
-            return (FunctionNode)fn.accept(new Lower());
+            return (FunctionNode)fn.accept(new Lower(compiler));
         }
 
         @Override

nashorn/src/jdk/nashorn/internal/codegen/Lower.java

@@ -86,10 +86,13 @@ final class Lower extends NodeOperatorVisitor<BlockLexicalContext> {
 
     private static final DebugLogger LOG = new DebugLogger("lower");
 
+    // needed only to get unique eval id from code installer
+    private final Compiler compiler;
+
     /**
      * Constructor.
      */
-    Lower() {
+    Lower(final Compiler compiler) {
         super(new BlockLexicalContext() {
 
             @Override
@@ -132,6 +135,7 @@ final class Lower extends NodeOperatorVisitor<BlockLexicalContext> {
                 return block.setIsTerminal(this, false);
             }
         });
+        this.compiler = compiler;
     }
 
     @Override
@@ -529,11 +533,15 @@ final class Lower extends NodeOperatorVisitor<BlockLexicalContext> {
      */
     private String evalLocation(final IdentNode node) {
         final Source source = lc.getCurrentFunction().getSource();
+        final int pos = node.position();
         return new StringBuilder().
             append(source.getName()).
             append('#').
-            append(source.getLine(node.position())).
+            append(source.getLine(pos)).
-            append("<eval>").
+            append(':').
+            append(source.getColumn(pos)).
+            append("<eval>@").
+            append(compiler.getCodeInstaller().getUniqueEvalId()).
             toString();
     }
 

nashorn/src/jdk/nashorn/internal/runtime/CodeInstaller.java

@@ -68,4 +68,10 @@ public interface CodeInstaller<T> {
      * @return unique script id
      */
     public long getUniqueScriptId();
+
+    /**
+     * Get next unique eval id
+     * @return unique eval id
+     */
+    public long getUniqueEvalId();
 }

nashorn/src/jdk/nashorn/internal/runtime/Context.java

@@ -139,6 +139,11 @@ public final class Context {
         public long getUniqueScriptId() {
             return context.getUniqueScriptId();
         }
+
+        @Override
+        public long getUniqueEvalId() {
+            return context.getUniqueEvalId();
+        }
     }
 
     /** Is Context global debug mode enabled ? */
@@ -238,6 +243,9 @@ public final class Context {
     /** Unique id for script. Used only when --loader-per-compile=false */
     private final AtomicLong uniqueScriptId;
 
+    /** Unique id for 'eval' */
+    private final AtomicLong uniqueEvalId;
+
     private static final ClassLoader myLoader = Context.class.getClassLoader();
     private static final StructureLoader sharedLoader;
 
@@ -320,6 +328,7 @@ public final class Context {
             this.uniqueScriptId = new AtomicLong();
         }
         this.errors    = errors;
+        this.uniqueEvalId = new AtomicLong();
 
         // if user passed -classpath option, make a class loader with that and set it as
         // thread context class loader so that script can access classes from that path.
@@ -954,6 +963,10 @@ public final class Context {
              }, CREATE_LOADER_ACC_CTXT);
     }
 
+    private long getUniqueEvalId() {
+        return uniqueEvalId.getAndIncrement();
+    }
+
     private long getUniqueScriptId() {
         return uniqueScriptId.getAndIncrement();
     }

nashorn/test/script/assert.js

@@ -61,3 +61,22 @@ Object.defineProperty(this, "fail", {
         }
     }
 });
+
+Object.defineProperty(this, "printError", {
+    configuable: true,
+    enumerable: false,
+    writable: true,
+    value: function (e) {
+        var msg = e.message;
+        var str = e.name + ':';
+        if (e.lineNumber > 0) {
+            str += e.lineNumber + ':';
+        }
+        if (e.columnNumber > 0) {
+            str += e.columnNumber + ':';
+        }
+        str += msg.substring(msg.indexOf(' ') + 1);
+        print(str);
+    }
+});
+

nashorn/test/script/basic/JDK-8019508.js

@@ -36,7 +36,7 @@ function checkObjLiteral(str) {
         if (! (e instanceof SyntaxError)) {
             fail("expected SyntaxError, got " + e);
         }
-        print(e.message.replace(/\\/g, '/'));
+        printError(e);
     }
 }
 

nashorn/test/script/basic/JDK-8019508.js.EXPECTED

@@ -1,12 +1,12 @@
-test/script/basic/JDK-8019508.js#33<eval>:1:2 Expected property id but found ,
+SyntaxError:33:Expected property id but found ,
 ({,})
   ^
-test/script/basic/JDK-8019508.js#33<eval>:1:2 Expected property id but found ,
+SyntaxError:33:Expected property id but found ,
 ({, a:2 })
   ^
-test/script/basic/JDK-8019508.js#33<eval>:1:6 Expected property id but found ,
+SyntaxError:33:Expected property id but found ,
 ({a:3,,})
       ^
-test/script/basic/JDK-8019508.js#33<eval>:1:6 Expected comma but found ident
+SyntaxError:33:Expected comma but found ident
 ({a:3 b:2}
       ^

nashorn/test/script/basic/JDK-8019553.js

@@ -33,7 +33,7 @@ function check(str) {
         eval(str);
         fail("SyntaxError expected for: " + str);
     } catch (e) {
-        print(e.toString().replace(/\\/g, '/'));
+        printError(e);
     }
 }
 

nashorn/test/script/basic/JDK-8019553.js.EXPECTED

@@ -1,12 +1,12 @@
-SyntaxError: test/script/basic/JDK-8019553.js#33<eval>:1:3 Expected l-value but found +
+SyntaxError:33:Expected l-value but found +
 ++ +3
    ^
-SyntaxError: test/script/basic/JDK-8019553.js#33<eval>:1:3 Expected l-value but found -
+SyntaxError:33:Expected l-value but found -
 ++ -7
    ^
-SyntaxError: test/script/basic/JDK-8019553.js#33<eval>:1:3 Expected l-value but found +
+SyntaxError:33:Expected l-value but found +
 -- +2
    ^
-SyntaxError: test/script/basic/JDK-8019553.js#33<eval>:1:3 Expected l-value but found -
+SyntaxError:33:Expected l-value but found -
 -- -8
    ^

nashorn/test/script/basic/JDK-8019791.js

@@ -33,7 +33,7 @@ try {
     eval('"" ~ ""');
     print("FAILED: SyntaxError expected for: \"\" ~ \"\"");
 } catch (e) {
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }
 
 // Used to crash instead of SyntaxError
@@ -41,7 +41,7 @@ try {
     eval("function() { if (1~0) return 0; return 1 }");
     print("FAILED: SyntaxError expected for: if (1~0) ");
 } catch (e) {
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }
 
 // The following are valid, but used to crash

nashorn/test/script/basic/JDK-8019791.js.EXPECTED

@@ -1,6 +1,6 @@
-SyntaxError: test/script/basic/JDK-8019791.js#33<eval>:1:3 Expected ; but found ~
+SyntaxError:33:Expected ; but found ~
 "" ~ ""
    ^
-SyntaxError: test/script/basic/JDK-8019791.js#41<eval>:1:18 Expected ) but found ~
+SyntaxError:41:Expected ) but found ~
 function() { if (1~0) return 0; return 1 }
                   ^

nashorn/test/script/basic/JDK-8019805.js

@@ -32,5 +32,5 @@ try {
     eval("for each(var v=0;false;);");
     print("FAILED: for each(var v=0; false;); should have thrown error");
 } catch (e) {
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }

nashorn/test/script/basic/JDK-8019805.js.EXPECTED

@@ -1,3 +1,3 @@
-SyntaxError: test/script/basic/JDK-8019805.js#32<eval>:1:16 for each can only be used with for..in
+SyntaxError:32:for each can only be used with for..in
 for each(var v=0;false;);
                 ^

nashorn/test/script/basic/JDK-8026167.js

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ * 
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8026167: Class cache/reuse of 'eval' scripts results in ClassCastException in some cases.
+ *
+ * @test
+ * @run
+ */
+
+var m = new javax.script.ScriptEngineManager();
+var e = m.getEngineByName('js');
+
+// leave the whitespace - need both eval("e") at same column for this test!
+
+e.eval('function f(e) {            eval("e") } f()');
+e.eval('function f() { var e = 33; eval("e") } f()');
+
+function f() {
+    Function.call.call(function x() { eval("x") }); eval("x") 
+}
+
+try {
+    f();
+    fail("Should have thrown ReferenceError");
+} catch (e) {
+    if (! (e instanceof ReferenceError)) {
+        fail("ReferenceError expected but got " + e);
+    }
+}

nashorn/test/script/basic/NASHORN-100.js

@@ -35,5 +35,5 @@ try {
     if (! (e instanceof SyntaxError)) {
         fail("#2 expected SyntaxError got " + e);
     }
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }

nashorn/test/script/basic/NASHORN-100.js.EXPECTED

@@ -1,3 +1,3 @@
-SyntaxError: test/script/basic/NASHORN-100.js#32<eval>:1:0 Invalid return statement
+SyntaxError:32:Invalid return statement
 return;
 ^

nashorn/test/script/basic/NASHORN-293.js

@@ -40,15 +40,13 @@ for (var i = 0; i < 3; i++) {
     try {
         eval(src);
     } catch (e) {
-        var location =  e.fileName ? e.fileName.slice(-9) : "unknown source";
+        printError(e);
-        print(e.name, "@", location);
     }
 }
 for (var i = 0; i < 3; i++) {
     try {
         eval(src);
     } catch (e) {
-        var location =  e.fileName ? e.fileName.slice(-9) : "unknown source";
+        printError(e);
-        print(e.name, "@", location);
     }
 }

nashorn/test/script/basic/NASHORN-293.js.EXPECTED

@@ -1,9 +1,9 @@
 hello
 hello
 hello
-TypeError @ #41<eval>
+TypeError:1:read property "foo" from undefined
-TypeError @ #41<eval>
+TypeError:1:read property "foo" from undefined
-TypeError @ #41<eval>
+TypeError:1:read property "foo" from undefined
-TypeError @ #49<eval>
+TypeError:1:read property "foo" from undefined
-TypeError @ #49<eval>
+TypeError:1:read property "foo" from undefined
-TypeError @ #49<eval>
+TypeError:1:read property "foo" from undefined

nashorn/test/script/basic/NASHORN-40.js

@@ -31,11 +31,11 @@
 try {
     eval("print(.foo)");
 } catch (e) {
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }
 
 try {
     eval(".bar = 3423;");
 } catch (e) {
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }

nashorn/test/script/basic/NASHORN-40.js.EXPECTED

@@ -1,6 +1,6 @@
-SyntaxError: test/script/basic/NASHORN-40.js#32<eval>:1:6 Expected an operand but found .
+SyntaxError:32:Expected an operand but found .
 print(.foo)
       ^
-SyntaxError: test/script/basic/NASHORN-40.js#38<eval>:1:0 Expected an operand but found .
+SyntaxError:38:Expected an operand but found .
 .bar = 3423;
 ^

nashorn/test/script/basic/NASHORN-51.js

@@ -35,28 +35,28 @@ for (i in literals) {
         eval(literals[i] + "++");
         print("ERROR!! post increment : " + literals[i]);
     } catch (e) {
-        print(e.toString().replace(/\\/g, '/'));
+        printError(e);
     }
 
     try {
         eval(literals[i] + "--");
         print("ERROR!! post decrement : " + literals[i]);
     } catch (e) {
-        print(e.toString().replace(/\\/g, '/'));
+        printError(e);
     }
 
     try {
         eval("++" + literals[i]);
         print("ERROR!! pre increment : " + literals[i]);
     } catch (e) {
-        print(e.toString().replace(/\\/g, '/'));
+        printError(e);
     }
 
     try {
         eval("--" + literals[i]);
         print("ERROR!! pre decrement : " + literals[i]);
     } catch (e) {
-        print(e.toString().replace(/\\/g, '/'));
+        printError(e);
     }
 }
 

nashorn/test/script/basic/NASHORN-51.js.EXPECTED

@@ -1,72 +1,72 @@
-ReferenceError: test/script/basic/NASHORN-51.js#35<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:35:Invalid left hand side for assignment
 1++
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#42<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:42:Invalid left hand side for assignment
 1--
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#49<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:49:Invalid left hand side for assignment
 ++1
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#56<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:56:Invalid left hand side for assignment
 --1
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#35<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:35:Invalid left hand side for assignment
 0++
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#42<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:42:Invalid left hand side for assignment
 0--
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#49<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:49:Invalid left hand side for assignment
 ++0
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#56<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:56:Invalid left hand side for assignment
 --0
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#35<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:35:Invalid left hand side for assignment
 3.14++
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#42<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:42:Invalid left hand side for assignment
 3.14--
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#49<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:49:Invalid left hand side for assignment
 ++3.14
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#56<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:56:Invalid left hand side for assignment
 --3.14
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#35<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:35:Invalid left hand side for assignment
 true++
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#42<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:42:Invalid left hand side for assignment
 true--
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#49<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:49:Invalid left hand side for assignment
 ++true
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#56<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:56:Invalid left hand side for assignment
 --true
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#35<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:35:Invalid left hand side for assignment
 false++
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#42<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:42:Invalid left hand side for assignment
 false--
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#49<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:49:Invalid left hand side for assignment
 ++false
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#56<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:56:Invalid left hand side for assignment
 --false
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#35<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:35:Invalid left hand side for assignment
 null++
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#42<eval>:1:0 Invalid left hand side for assignment
+ReferenceError:42:Invalid left hand side for assignment
 null--
 ^
-ReferenceError: test/script/basic/NASHORN-51.js#49<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:49:Invalid left hand side for assignment
 ++null
   ^
-ReferenceError: test/script/basic/NASHORN-51.js#56<eval>:1:2 Invalid left hand side for assignment
+ReferenceError:56:Invalid left hand side for assignment
 --null
   ^

nashorn/test/script/basic/NASHORN-98.js

@@ -34,7 +34,7 @@ try {
     if (! (e instanceof SyntaxError)) {
        fail("syntax error expected here got " + e);
     }
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 } 
 
 try {
@@ -43,5 +43,5 @@ try {
     if (! (e instanceof SyntaxError)) {
        fail("syntax error expected here got " + e);
     }
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 } 

nashorn/test/script/basic/NASHORN-98.js.EXPECTED

@@ -1,6 +1,6 @@
-SyntaxError: test/script/basic/NASHORN-98.js#32<eval>:1:13 Expected comma but found decimal
+SyntaxError:32:Expected comma but found decimal
 var x = [ 23 34 ]
              ^
-SyntaxError: test/script/basic/NASHORN-98.js#41<eval>:1:18 Expected comma but found ident
+SyntaxError:41:Expected comma but found ident
 var x = { foo: 33 bar: 'hello' }
                   ^

nashorn/test/script/basic/eval.js

@@ -69,5 +69,5 @@ try {
     eval("print('hello)");
 } catch (e) {
     print("is syntax error? " + (e instanceof SyntaxError));
-    print(e.toString().replace(/\\/g, '/'));
+    printError(e);
 }

nashorn/test/script/basic/eval.js.EXPECTED

@@ -10,6 +10,6 @@ eval.length 1
 100
 3300
 is syntax error? true
-SyntaxError: test/script/basic/eval.js#69<eval>:1:13 Missing close quote
+SyntaxError:69:Missing close quote
 print('hello)
              ^