servo: Merge #1829 - Remove page_from_context (from Ms2ger:page_from_context); r=jdm

Source-Repo: https://github.com/servo/servo
Source-Revision: b9b4eebab5664d026435d70bf3f2ac40c5b56826

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

@@ -2675,38 +2675,6 @@ class CGCreateInterfaceObjectsMethod(CGAbstractMethod):
         # if we don't need to create anything, why are we generating this?
         assert needInterfaceObject or needInterfacePrototypeObject
 
-        idsToInit = []
-        if False: #XXXjdm don't need xray stuff yet
-            for var in self.properties.xrayRelevantArrayNames():
-                props = getattr(self.properties, var)
-                # We only have non-chrome ids to init if we have no chrome ids.
-                if props.hasChromeOnly():
-                    idsToInit.append(props.variableName(True))
-                elif props.hasNonChromeOnly():
-                    idsToInit.append(props.variableName(False))
-        if len(idsToInit) > 0:
-            setup = CGList([CGGeneric("let page = page_from_context(aCx);"),
-                            CGList([CGGeneric("let mut js_info = (*page).js_info();\n"
-                                              "let %s_ids_mut = js_info.get().get_ref().dom_static.attribute_ids.get(&(PrototypeList::id::%s as uint));" % (varname, self.descriptor.name)) for varname in idsToInit], '\n')], '\n')
-            initIds = CGList(
-                [CGGeneric("!InitIds(aCx, %s, *%s_ids_mut)" % (varname, varname)) for
-                 varname in idsToInit], ' ||\n')
-            if len(idsToInit) > 1:
-                initIds = CGWrapper(initIds, pre="(", post=")", reindent=True)
-            initIds = CGList(
-                [CGGeneric("%s_ids_mut[0] == JSID_VOID &&" % idsToInit[0]), initIds],
-                "\n")
-            initIds = CGWrapper(initIds, pre="if ", post=" {", reindent=True)
-            initIds = CGList(
-                [setup,
-                 initIds,
-                 CGGeneric(("  %s_ids_mut[0] = JSID_VOID;\n"
-                            "  return ptr::null();") % idsToInit[0]),
-                 CGGeneric("}")],
-                "\n")
-        else:
-            initIds = None
-
         prefCacheData = []
         for var in self.properties.arrayNames():
             props = getattr(self.properties, var)
@@ -2773,7 +2741,7 @@ class CGCreateInterfaceObjectsMethod(CGAbstractMethod):
             chrome = None
 
         functionBody = CGList(
-            [CGGeneric(getParentProto), initIds, prefCache, chrome,
+            [CGGeneric(getParentProto), prefCache, chrome,
              CGGeneric(call % self.properties.variableNames(False))],
             "\n\n")
         #return CGIndenter(CGWrapper(functionBody, pre="/*", post="*/return ptr::null()")).define()
@@ -5294,7 +5262,7 @@ class CGBindingRoot(CGThing):
                           'dom::bindings::codegen::*', #XXXjdm
                           'dom::bindings::codegen::UnionTypes::*', #XXXjdm
                           'dom::bindings::codegen::UnionConversions::*', #XXXjdm
-                          'script_task::{JSPageInfo, page_from_context}',
+                          'script_task::JSPageInfo',
                           'dom::bindings::proxyhandler',
                           'dom::bindings::proxyhandler::*',
                           'servo_util::str::DOMString',

servo/src/components/script/script_task.rs

@@ -35,8 +35,7 @@ use geom::size::Size2D;
 use js::JSVAL_NULL;
 use js::global::DEBUG_FNS;
 use js::glue::RUST_JSVAL_TO_OBJECT;
-use js::jsapi::{JSContext, JSObject, JS_InhibitGC, JS_AllowGC};
-use js::jsapi::{JS_CallFunctionValue, JS_GetContextPrivate};
+use js::jsapi::{JSObject, JS_InhibitGC, JS_AllowGC, JS_CallFunctionValue};
 use js::rust::{Compartment, Cx, CxUtils, RtUtils};
 use js;
 use servo_msg::compositor_msg::{FinishedLoading, Loading, PerformingLayout, ScriptListener};
@@ -420,15 +419,7 @@ impl Page {
               Err(()) => fail!("Failed to create a compartment"),
         };
 
-        // Indirection for Rust Issue #6248, dynamic freeze scope artifically extended
-        let page_ptr = {
-            let borrowed_page = &*self;
-            borrowed_page as *Page
-        };
-
         unsafe {
-            js_context.borrow().set_cx_private(page_ptr as *());
-
             JS_InhibitGC(js_context.borrow().ptr);
         }
 
@@ -489,13 +480,6 @@ pub struct ScriptTask {
     mouse_over_targets: RefCell<Option<~[JS<Node>]>>
 }
 
-/// Returns the relevant page from the associated JS Context.
-pub fn page_from_context(js_context: *JSContext) -> *Page {
-    unsafe {
-        JS_GetContextPrivate(js_context) as *Page
-    }
-}
-
 impl ScriptTask {
     /// Creates a new script task.
     pub fn new(id: PipelineId,