wip: template binding optimization

packages/runtime-core/src/component.ts

@@ -77,10 +77,8 @@ export interface ComponentInternalOptions {
   __file?: string
 }
 
-export interface FunctionalComponent<
-  P = {},
-  E extends EmitsOptions = {}
-> extends ComponentInternalOptions {
+export interface FunctionalComponent<P = {}, E extends EmitsOptions = {}>
+  extends ComponentInternalOptions {
   // use of any here is intentional so it can be a valid JSX Element constructor
   (props: P, ctx: SetupContext<E>): any
   props?: ComponentPropsOptions<P>
@@ -142,7 +140,12 @@ export interface SetupContext<E = ObjectEmitsOptions> {
 export type InternalRenderFunction = {
   (
     ctx: ComponentPublicInstance,
-    cache: ComponentInternalInstance['renderCache']
+    cache: ComponentInternalInstance['renderCache'],
+    // for compiler-optimized bindings
+    $props: ComponentInternalInstance['props'],
+    $setup: ComponentInternalInstance['setupState'],
+    $data: ComponentInternalInstance['data'],
+    $options: ComponentInternalInstance['ctx']
   ): VNodeChild
   _rc?: boolean // isRuntimeCompiled
 }

packages/runtime-core/src/componentOptions.ts

@@ -119,7 +119,12 @@ export interface ComponentOptionsBase<
     ctx: any,
     push: (item: any) => void,
     parentInstance: ComponentInternalInstance,
-    attrs?: Data
+    attrs: Data | undefined,
+    // for compiler-optimized bindings
+    $props: ComponentInternalInstance['props'],
+    $setup: ComponentInternalInstance['setupState'],
+    $data: ComponentInternalInstance['data'],
+    $options: ComponentInternalInstance['ctx']
   ) => void
 
   /**

packages/runtime-core/src/componentRenderUtils.ts

@@ -50,7 +50,11 @@ export function renderComponentRoot(
     slots,
     attrs,
     emit,
-    renderCache
+    render,
+    renderCache,
+    data,
+    setupState,
+    ctx
   } = instance
 
   let result
@@ -65,7 +69,15 @@ export function renderComponentRoot(
       // runtime-compiled render functions using `with` block.
       const proxyToUse = withProxy || proxy
       result = normalizeVNode(
-        instance.render!.call(proxyToUse, proxyToUse!, renderCache)
+        render!.call(
+          proxyToUse,
+          proxyToUse!,
+          renderCache,
+          props,
+          setupState,
+          data,
+          ctx
+        )
       )
       fallthroughAttrs = attrs
     } else {