Debugger: add ability to set script source from within OnBeforeCompile.

src/runtime.cc

Index: src/runtime.cc
===================================================================
--- src/runtime.cc	(revision 10875)
+++ src/runtime.cc	(working copy)
@@ -12557,6 +12557,23 @@
 }
 
 
+// Patches script source (should be called upon BeforeCompile event).

[yurys, 2012/03/13 17:09:30]

We should check here that the script source is not changed after BeforeCompile.

+RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugSetScriptSource) {
+  HandleScope scope(isolate);
+  ASSERT(args.length() == 2);
+
+  CONVERT_ARG_HANDLE_CHECKED(JSValue, script_wrapper, 0);
+  Handle<String> source(String::cast(args[1]));
+
+  RUNTIME_ASSERT(script_wrapper->value()->IsScript());
+  Handle<Script> script(Script::cast(script_wrapper->value()));
+
+  script->set_source(*source);
+
+  return isolate->heap()->undefined_value();
+}
+
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_SystemBreak) {
   ASSERT(args.length() == 0);
   CPU::DebugBreak();