Replace str_to_jsval and domstring_to_jsval by a ToJSValConvertible implementation.

src/components/script/dom/bindings/codegen/CodegenRust.py

@@ -1535,10 +1535,7 @@ for (uint32_t i = 0; i < length; ++i) {
         return (wrappingCode, False)
 
     if type.isString():
-        if type.nullable():
+        return (setValue("(%s).to_jsval(cx)" % result), True)
-            return (wrapAndSetPtr("*${jsvalPtr} = domstring_to_jsval(cx, %s)" % result), False)
-        else:
-            return (wrapAndSetPtr("*${jsvalPtr} = str_to_jsval(cx, %s)" % result), False)
 
     if type.isEnum():
         if type.nullable():
@@ -5258,7 +5255,7 @@ class CGBindingRoot(CGThing):
                           'dom::bindings::utils::{CreateDOMGlobal, CreateInterfaceObjects2}',
                           'dom::bindings::utils::{ConstantSpec, cx_for_dom_object, Default}',
                           'dom::bindings::utils::{dom_object_slot, DOM_OBJECT_SLOT, DOMClass}',
-                          'dom::bindings::utils::{DOMJSClass, domstring_to_jsval, Empty}',
+                          'dom::bindings::utils::{DOMJSClass, Empty}',
                           'dom::bindings::utils::{FindEnumStringIndex, GetArrayIndexFromId}',
                           'dom::bindings::utils::{GetPropertyOnPrototype, GetProtoOrIfaceArray}',
                           'dom::bindings::utils::{GetReflector, HasPropertyOnPrototype, IntVal}',
@@ -5266,7 +5263,7 @@ class CGBindingRoot(CGThing):
                           'dom::bindings::utils::{NativePropertyHooks}',
                           'dom::bindings::utils::global_object_for_js_object',
                           'dom::bindings::utils::{Reflectable}',
-                          'dom::bindings::utils::{squirrel_away_unique, str_to_jsval}',
+                          'dom::bindings::utils::{squirrel_away_unique}',
                           'dom::bindings::utils::{ThrowingConstructor,  unwrap, unwrap_jsmanaged}',
                           'dom::bindings::utils::{unwrap_object, VoidVal, with_gc_disabled}',
                           'dom::bindings::utils::{with_gc_enabled, XrayResolveProperty}',

src/components/script/dom/bindings/conversions.rs

@@ -2,13 +2,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use servo_util::str::DOMString;
+
 use js::jsapi::{JSBool, JSContext};
 use js::jsapi::{JS_ValueToUint64, JS_ValueToInt64};
 use js::jsapi::{JS_ValueToECMAUint32, JS_ValueToECMAInt32};
 use js::jsapi::{JS_ValueToUint16, JS_ValueToNumber, JS_ValueToBoolean};
+use js::jsapi::{JS_NewUCStringCopyN};
 use js::jsval::JSVal;
-use js::jsval::{NullValue, BooleanValue, Int32Value, UInt32Value};
+use js::jsval::{NullValue, BooleanValue, Int32Value, UInt32Value, StringValue};
 use js::glue::RUST_JS_NumberValue;
+use std::libc;
 
 pub trait ToJSValConvertible {
     fn to_jsval(&self, cx: *JSContext) -> JSVal;
@@ -176,6 +180,19 @@ impl FromJSValConvertible<()> for f64 {
     }
 }
 
+impl ToJSValConvertible for DOMString {
+    fn to_jsval(&self, cx: *JSContext) -> JSVal {
+        unsafe {
+            let string_utf16 = self.to_utf16();
+            let jsstr = JS_NewUCStringCopyN(cx, string_utf16.as_ptr(), string_utf16.len() as libc::size_t);
+            if jsstr.is_null() {
+                fail!("JS_NewUCStringCopyN failed");
+            }
+            StringValue(&*jsstr)
+        }
+    }
+}
+
 impl<T: ToJSValConvertible> ToJSValConvertible for Option<T> {
     fn to_jsval(&self, cx: *JSContext) -> JSVal {
         match self {

src/components/script/dom/bindings/utils.rs

@@ -26,7 +26,7 @@ use js::jsapi::{JS_GetClass, JS_LinkConstructorAndPrototype, JS_GetStringCharsAn
 use js::jsapi::{JS_ObjectIsRegExp, JS_ObjectIsDate};
 use js::jsapi::{JS_InternString, JS_GetFunctionObject};
 use js::jsapi::{JS_HasPropertyById, JS_GetPrototype, JS_GetGlobalForObject};
-use js::jsapi::{JS_NewUCStringCopyN, JS_DefineFunctions, JS_DefineProperty};
+use js::jsapi::{JS_DefineFunctions, JS_DefineProperty};
 use js::jsapi::{JS_ValueToString, JS_GetReservedSlot, JS_SetReservedSlot};
 use js::jsapi::{JSContext, JSObject, JSBool, jsid, JSClass, JSNative};
 use js::jsapi::{JSFunctionSpec, JSPropertySpec, JSPropertyDescriptor};
@@ -35,7 +35,7 @@ use js::jsapi::{JSString};
 use js::jsapi::{JS_AllowGC, JS_InhibitGC};
 use js::jsfriendapi::bindgen::JS_NewObjectWithUniqueType;
 use js::jsval::JSVal;
-use js::jsval::{StringValue, PrivateValue, ObjectValue, NullValue, Int32Value};
+use js::jsval::{PrivateValue, ObjectValue, NullValue, Int32Value};
 use js::jsval::{UInt32Value, DoubleValue, BooleanValue, UndefinedValue};
 use js::{JSPROP_ENUMERATE, JSCLASS_IS_GLOBAL, JSCLASS_IS_DOMJSCLASS};
 use js::{JSPROP_PERMANENT, JSID_VOID, JSPROP_NATIVE_ACCESSORS, JSPROP_GETTER};
@@ -196,22 +196,6 @@ pub fn jsval_to_domstring(cx: *JSContext, v: JSVal) -> Result<Option<DOMString>,
     }
 }
 
-pub unsafe fn str_to_jsval(cx: *JSContext, string: DOMString) -> JSVal {
-    let string_utf16 = string.to_utf16();
-    let jsstr = JS_NewUCStringCopyN(cx, string_utf16.as_ptr(), string_utf16.len() as libc::size_t);
-    if jsstr.is_null() {
-        fail!("JS_NewUCStringCopyN failed");
-    }
-    StringValue(&*jsstr)
-}
-
-pub unsafe fn domstring_to_jsval(cx: *JSContext, string: Option<DOMString>) -> JSVal {
-    match string {
-        None => NullValue(),
-        Some(s) => str_to_jsval(cx, s),
-    }
-}
-
 // We use slot 0 for holding the raw object.  This is safe for both
 // globals and non-globals.
 pub static DOM_OBJECT_SLOT: uint = 0;