feat: makeDereferencable

Author: iwoplaza

packages/typegpu/src/core/makeDereferencable.ts

@@ -0,0 +1,33 @@
+import { snip, type Origin } from '../data/snippet.ts';
+import type { BaseData } from '../data/wgslTypes.ts';
+import { $gpuValueOf, $internal, $ownSnippet, $resolve } from '../shared/symbols.ts';
+import { valueProxyHandler } from './valueProxyUtils.ts';
+
+export function makeDereferencable<T>(value: T, options: makeDereferencable.Options): T {
+  Object.defineProperty(value, $gpuValueOf, {
+    value: function () {
+      const [dataType, origin] = options.getDataTypeAndOrigin();
+
+      return new Proxy(
+        {
+          [$internal]: true,
+          get [$ownSnippet]() {
+            return snip(this, dataType, origin);
+          },
+          [$resolve]: (ctx) => ctx.resolve(this),
+          toString: () => `${options.asString()}.$`,
+        },
+        valueProxyHandler,
+      );
+    },
+  });
+
+  return value;
+}
+
+export namespace makeDereferencable {
+  export interface Options {
+    getDataTypeAndOrigin(): [dataType: BaseData, origin: Origin];
+    asString(): string;
+  }
+}