[js] Small progress.

It segfaults less often, but still, especially on non utf-8 pages.
And sometimes it did not work.

src/ecmascript/ecmascript.h

@@ -54,6 +54,7 @@ struct ecmascript_interpreter {
 	 * to redraw. */
 	unsigned int onload_snippets_cache_id;
 	void *ac;
+	void *ar;
 };
 
 /* Why is the interpreter bound to {struct view_state} instead of {struct

src/ecmascript/spidermonkey-shared.c

@@ -15,7 +15,8 @@
 - * object, so scripts cannot be evaluated in it.
 - */
 
-JSContext *spidermonkey_empty_context;
+JSContext *main_ctx;
+
 /** A reference count for ::spidermonkey_runtime so that modules using
  * it can be initialized and shut down in arbitrary order.  */
 static int spidermonkey_runtime_refcount;
@@ -34,8 +35,15 @@ spidermonkey_runtime_addref(void)
 			return 0;
 		}
 
-		spidermonkey_empty_context = JS_NewContext(0);
+		main_ctx = JS_NewContext(16 * 1024 * 1024);
-		if (!spidermonkey_empty_context) {
+
+		if (!main_ctx) {
+			JS_ShutDown();
+			return 0;
+		}
+
+		if (!JS::InitSelfHostedCode(main_ctx)) {
+			JS_DestroyContext(main_ctx);
 			JS_ShutDown();
 			return 0;
 		}
@@ -57,7 +65,7 @@ spidermonkey_runtime_release(void)
 
 	--spidermonkey_runtime_refcount;
 	if (spidermonkey_runtime_refcount == 0) {
-		JS_DestroyContext(spidermonkey_empty_context);
+		JS_DestroyContext(main_ctx);
 		JS_ShutDown();
 	}
 }

src/ecmascript/spidermonkey-shared.h

@@ -24,7 +24,7 @@
 #include "util/string.h"
 
 extern JSRuntime *spidermonkey_runtime;
-extern JSContext *spidermonkey_empty_context;
+extern JSContext *main_ctx;
 int spidermonkey_runtime_addref(void);
 void spidermonkey_runtime_release(void);
 

src/ecmascript/spidermonkey.c

@@ -141,7 +141,14 @@ PrintError(JSContext* cx, FILE* file, JS::ConstUTF8CharsZ toStringResult,
 static void
 error_reporter(JSContext *ctx, JSErrorReport *report)
 {
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
+//	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 	struct session *ses = interpreter->vs->doc_view->session;
 	struct terminal *term;
 	unsigned char *strict, *exception, *warning, *error;
@@ -229,25 +236,28 @@ spidermonkey_get_interpreter(struct ecmascript_interpreter *interpreter)
 	JSObject *document_obj, *forms_obj, *history_obj, *location_obj,
 	         *statusbar_obj, *menubar_obj, *navigator_obj;
 
+	static int initialized = 0;
+
 	assert(interpreter);
 	if (!js_module_init_ok) return NULL;
 
-//	ctx = JS_NewContext(JS::DefaultHeapMaxBytes, JS::DefaultNurseryBytes);
+	ctx = main_ctx;
-	ctx = JS_NewContext(8L * 1024 * 1024);
+
-	if (!ctx)
+	if (!ctx) {
-		return NULL;
+		return nullptr;
+	}
+
 	interpreter->backend_data = ctx;
-	JSAutoRequest ar(ctx);
+	interpreter->ar = new JSAutoRequest(ctx);
-	JS_SetContextPrivate(ctx, interpreter);
+	//JSAutoRequest ar(ctx);
-	//JS_SetOptions(ctx, JSOPTION_VAROBJFIX | JS_METHODJIT);
+
+//	JS_SetContextPrivate(ctx, interpreter);
+
+	//JS_SetOptions(main_ctx, JSOPTION_VAROBJFIX | JS_METHODJIT);
 	JS::SetWarningReporter(ctx, error_reporter);
 	JS_AddInterruptCallback(ctx, heartbeat_callback);
 	JS::CompartmentOptions options;
 
-	if (!JS::InitSelfHostedCode(ctx)) {
-		return NULL;
-	}
-
 	JS::RootedObject window_obj(ctx, JS_NewGlobalObject(ctx, &window_class, NULL, JS::FireOnNewGlobalHook, options));
 
 	if (window_obj) {
@@ -338,6 +348,8 @@ spidermonkey_get_interpreter(struct ecmascript_interpreter *interpreter)
 	}
 //	JS_SetPrivate(navigator_obj, interpreter->vs);
 
+	JS_SetCompartmentPrivate(js::GetContextCompartment(ctx), interpreter);
+
 	return ctx;
 
 release_and_fail:
@@ -352,13 +364,18 @@ spidermonkey_put_interpreter(struct ecmascript_interpreter *interpreter)
 
 	assert(interpreter);
 	if (!js_module_init_ok) return;
+
 	ctx = interpreter->backend_data;
 	if (interpreter->ac) {
 		delete (JSAutoCompartment *)interpreter->ac;
 	}
-	JS_DestroyContext(ctx);
+	if (interpreter->ar) {
+		delete (JSAutoRequest *)interpreter->ar;
+	}
+//	JS_DestroyContext(ctx);
 	interpreter->backend_data = NULL;
 	interpreter->ac = nullptr;
+	interpreter->ar = nullptr;
 }
 
 

src/ecmascript/spidermonkey/document.c

@@ -267,7 +267,7 @@ document_set_property_title(JSContext *ctx, int argc, JS::Value *vp)
 
 	vs = JS_GetInstancePrivate(ctx, hobj,
 				   &document_class, NULL);
-	if (!vs) {
+	if (!vs || !vs->doc_view) {
 		return false;
 	}
 	doc_view = vs->doc_view;
@@ -401,8 +401,15 @@ const spidermonkeyFunctionSpec document_funcs[] = {
 static bool
 document_write_do(JSContext *ctx, unsigned int argc, JS::Value *rval, int newline)
 {
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return false;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
 	JS::Value val;
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
+//	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 	struct string *ret = interpreter->ret;
 	JS::CallArgs args = JS::CallArgsFromVp(argc, rval);
 

src/ecmascript/spidermonkey/heartbeat.c

@@ -36,7 +36,14 @@ static struct itimerval heartbeat_timer = { { 1, 0 }, { 1, 0 } };
 bool
 heartbeat_callback(JSContext *ctx)
 {
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return true;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
+//	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 
 	if (!interpreter->heartbeat || interpreter->heartbeat->ttl > 0) {
 		return true;

src/ecmascript/spidermonkey/location.c

@@ -73,7 +73,13 @@ const spidermonkeyFunctionSpec history_funcs[] = {
 static bool
 history_back(JSContext *ctx, unsigned int argc, JS::Value *rval)
 {
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return false;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
 	struct document_view *doc_view = interpreter->vs->doc_view;
 	struct session *ses = doc_view->session;
 	JS::CallArgs args = JS::CallArgsFromVp(argc, rval);
@@ -92,7 +98,14 @@ history_back(JSContext *ctx, unsigned int argc, JS::Value *rval)
 static bool
 history_forward(JSContext *ctx, unsigned int argc, JS::Value *rval)
 {
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return false;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
+//	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 	struct document_view *doc_view = interpreter->vs->doc_view;
 	struct session *ses = doc_view->session;
 	JS::CallArgs args = JS::CallArgsFromVp(argc, rval);
@@ -107,7 +120,14 @@ history_forward(JSContext *ctx, unsigned int argc, JS::Value *rval)
 static bool
 history_go(JSContext *ctx, unsigned int argc, JS::Value *rval)
 {
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return false;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
+//	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 	struct document_view *doc_view = interpreter->vs->doc_view;
 	struct session *ses = doc_view->session;
 	JS::CallArgs args = JS::CallArgsFromVp(argc, rval);

src/ecmascript/spidermonkey/window.c

@@ -427,9 +427,16 @@ end:
 static bool
 window_setTimeout(JSContext *ctx, unsigned int argc, JS::Value *rval)
 {
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return false;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
+
 	JS::CallArgs args = JS::CallArgsFromVp(argc, rval);
-//	JS::Value *argv = JS_ARGV(ctx, rval);
+//	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
-	struct ecmascript_interpreter *interpreter = JS_GetContextPrivate(ctx);
 	unsigned char *code;
 	int timeout;