Change 'Parse error' to three more informative messages.

Replace the 'unable_to_parse' key used in three places with three difference keys.
Provide three more informative and less ambiguous error messages in place of 'Parse error'.

Add three test/message cases to cover the new messages.

BUG=2636

Review URL: https://codereview.chromium.org/14161007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14462 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/messages.js

@@ -110,7 +110,9 @@ var kMessages = {
   stack_overflow:                ["Maximum call stack size exceeded"],
   invalid_time_value:            ["Invalid time value"],
   // SyntaxError
-  unable_to_parse:               ["Parse error"],
+  paren_in_arg_string:           ["Function arg string contains parenthesis"],
+  not_isvar:                     ["builtin %IS_VAR: not a variable"],
+  single_function_literal:       ["Single function literal required"],
   invalid_regexp_flags:          ["Invalid flags supplied to RegExp constructor '", "%0", "'"],
   invalid_regexp:                ["Invalid RegExp pattern /", "%0", "/"],
   illegal_break:                 ["Illegal break statement"],

src/parser.cc

@@ -662,7 +662,7 @@ FunctionLiteral* Parser::DoParseProgram(CompilationInfo* info,
           !body->at(0)->IsExpressionStatement() ||
           !body->at(0)->AsExpressionStatement()->
               expression()->IsFunctionLiteral()) {
-        ReportMessage("unable_to_parse", Vector<const char*>::empty());
+        ReportMessage("single_function_literal", Vector<const char*>::empty());
         ok = false;
       }
     }
@@ -4752,7 +4752,7 @@ Expression* Parser::ParseV8Intrinsic(bool* ok) {
     if (args->length() == 1 && args->at(0)->AsVariableProxy() != NULL) {
       return args->at(0);
     } else {
-      ReportMessage("unable_to_parse", Vector<const char*>::empty());
+      ReportMessage("not_isvar", Vector<const char*>::empty());
       *ok = false;
       return NULL;
     }

src/v8natives.js

@@ -1766,7 +1766,7 @@ function NewFunction(arg1) {  // length == 1
     // If the formal parameters string include ) - an illegal
     // character - it may make the combined function expression
     // compile. We avoid this problem by checking for this early on.
-    if (p.indexOf(')') != -1) throw MakeSyntaxError('unable_to_parse',[]);
+    if (p.indexOf(')') != -1) throw MakeSyntaxError('paren_in_arg_string',[]);
     // If the formal parameters include an unbalanced block comment, the
     // function must be rejected. Since JavaScript does not allow nested
     // comments we can include a trailing block comment to catch this.

test/message/isvar.js

@@ -0,0 +1,31 @@
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+var x;
+%IS_VAR(x);
+%IS_VAR(x+x);

test/message/isvar.out

@@ -0,0 +1,4 @@
+*%(basename)s:31: SyntaxError: builtin %%IS_VAR: not a variable
+%%IS_VAR(x+x);
+           ^
+SyntaxError: builtin %%IS_VAR: not a variable

test/message/paren_in_arg_string.js

@@ -0,0 +1,29 @@
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+var paren_in_arg_string_good = new Function('x', 'return;');
+var paren_in_arg_string_bad = new Function(')', 'return;');

test/message/paren_in_arg_string.out

@@ -0,0 +1,6 @@
+*%(basename)s:29: SyntaxError: Function arg string contains parenthesis
+var paren_in_arg_string_bad = new Function(')', 'return;');
+                              ^
+SyntaxError: Function arg string contains parenthesis
+    at Function (<anonymous>)
+    at *%(basename)s:29:31

test/message/single-function-literal.js

@@ -0,0 +1,32 @@
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+var single_function_good = "(function() { return 5; })";
+%CompileString(single_function_good, true);
+var single_function_bad = "(function() { return 5; })();";
+%CompileString(single_function_bad, true);

test/message/single-function-literal.out

@@ -0,0 +1,5 @@
+undefined:1: SyntaxError: Single function literal required
+(function() { return 5; })();
+                            ^
+SyntaxError: Single function literal required
+    at *%(basename)s:32:16