Add an optional source length field to the Extension constructor.

test/cctest/test-api.cc

 // Copyright 2011 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
@@ skipping 4259 matching lines @@
   v8::RegisterExtension(new Extension("simpletest", kSimpleExtensionSource));
   const char* extension_names[] = { "simpletest" };
   v8::ExtensionConfiguration extensions(1, extension_names);
   v8::Handle<Context> context = Context::New(&extensions);
   Context::Scope lock(context);
   v8::Handle<Value> result = Script::Compile(v8_str("Foo()"))->Run();
   CHECK_EQ(result, v8::Integer::New(4));
 }
 
 
+static const char* kEmbeddedExtensionSource =
+    "function Ret54321(){return 54321;}~~@@$"
+    "$%% THIS IS A SERIES OF NON-NULL-TERMINATED STRINGS.";
+static const int kEmbeddedExtensionSourceValidLen = 34;
+
+
+THREADED_TEST(ExtensionMissingSourceLength) {
+  v8::HandleScope handle_scope;
+  v8::RegisterExtension(new Extension("srclentest_fail",
+                                      kEmbeddedExtensionSource));
+  const char* extension_names[] = { "srclentest_fail" };
+  v8::ExtensionConfiguration extensions(1, extension_names);
+  v8::Handle<Context> context = Context::New(&extensions);
+  CHECK_EQ(0, *context);
+}
+
+
+THREADED_TEST(ExtensionWithSourceLength) {
+  for (int source_len = kEmbeddedExtensionSourceValidLen - 1;
+       source_len <= kEmbeddedExtensionSourceValidLen + 1; ++source_len) {
+    v8::HandleScope handle_scope;
+    char extension_name[32];
+    snprintf(extension_name, sizeof(extension_name), "ext #%d", source_len);
+    v8::RegisterExtension(new Extension(extension_name,
+                                        kEmbeddedExtensionSource, 0, 0,
+                                        source_len));
+    const char* extension_names[1] = { extension_name };
+    v8::ExtensionConfiguration extensions(1, extension_names);
+    v8::Handle<Context> context = Context::New(&extensions);
+    if (source_len == kEmbeddedExtensionSourceValidLen) {
+      Context::Scope lock(context);
+      v8::Handle<Value> result = Script::Compile(v8_str("Ret54321()"))->Run();
+      CHECK_EQ(v8::Integer::New(54321), result);
+    } else {
+      // Anything but exactly the right length should fail to compile.
+      CHECK_EQ(0, *context);
+    }
+  }
+}
+
+
 static const char* kEvalExtensionSource1 =
   "function UseEval1() {"
   "  var x = 42;"
   "  return eval('x');"
   "}";
 
 
 static const char* kEvalExtensionSource2 =
   "(function() {"
   "  var x = 42;"
@@ skipping 10857 matching lines @@
   CHECK(i->Equals(CompileRun("'abcbd'.replace(/b/g,func)[3]")));
 
   // TODO(1547): Make the following also return "i".
   // Calling with environment record as base.
   TestReceiver(o, context->Global(), "func()");
   // Calling with no base.
   TestReceiver(o, context->Global(), "(1,func)()");
 
   foreign_context.Dispose();
 }