Bug 892187 - Fix spurious uses of ExclusiveContext->asJSContext(), r=billm.

js/src/frontend/BytecodeCompiler.cpp

@@ -128,6 +128,20 @@ CanLazilyParse(JSContext *cx, const CompileOptions &options)
         !cx->compartment()->debugMode();
 }
 
+inline void
+MaybeCallSourceHandler(JSContext *cx, const CompileOptions &options,
+                       const jschar *chars, size_t length)
+{
+    JSSourceHandler listener = cx->runtime()->debugHooks.sourceHandler;
+    void *listenerData = cx->runtime()->debugHooks.sourceHandlerData;
+
+    if (listener) {
+        void *listenerTSData;
+        listener(options.filename, options.lineno, chars, length,
+                 &listenerTSData, listenerData);
+    }
+}
+
 JSScript *
 frontend::CompileScript(JSContext *cx, HandleObject scopeChain,
                         HandleScript evalCaller,
@@ -140,6 +154,8 @@ frontend::CompileScript(JSContext *cx, HandleObject scopeChain,
     RootedString source(cx, source_);
     SkipRoot skip(cx, &chars);
 
+    MaybeCallSourceHandler(cx, options, chars, length);
+
     /*
      * The scripted callerFrame can only be given for compile-and-go scripts
      * and non-zero static level requires callerFrame.
@@ -405,6 +421,8 @@ frontend::CompileFunctionBody(JSContext *cx, MutableHandleFunction fun, CompileO
     // ProgramElements respectively.
     SkipRoot skip(cx, &chars);
 
+    MaybeCallSourceHandler(cx, options, chars, length);
+
     if (!CheckLength(cx, length))
         return false;
     ScriptSource *ss = cx->new_<ScriptSource>();