perf(ext/ffi): Fast UnsafePointerView read functions (#16351)

This PR makes pointer read methods of `Deno.UnsafePointerView` Fast API
compliant, with the exception of `getCString` which cannot be made fast
with current V8 Fast API.

1 files changed, 49 insertions, 1 deletions

diff --git a/test_ffi/tests/bench.js b/test_ffi/tests/bench.js
index b59097082..a20ee3c80 100644
--- a/test_ffi/tests/bench.js
+++ b/test_ffi/tests/bench.js
@@ -251,7 +251,7 @@ Deno.bench("hash()", () => {
 const { ffi_string } = dylib.symbols;
 Deno.bench(
   "c string",
-  () => new Deno.UnsafePointerView(ffi_string()).getCString(),
+  () => Deno.UnsafePointerView.getCString(ffi_string()),
 );
 
 const { add_u32 } = dylib.symbols;
@@ -643,3 +643,51 @@ const cstringPointerView = new Deno.UnsafePointerView(
 Deno.bench("Deno.UnsafePointerView#getCString", () => {
   cstringPointerView.getCString();
 });
+
+const bufferPointerView = new Deno.UnsafePointerView(
+  Deno.UnsafePointer.of(buffer),
+);
+
+Deno.bench("Deno.UnsafePointerView#getBool", () => {
+  bufferPointerView.getBool();
+});
+
+Deno.bench("Deno.UnsafePointerView#getUint8", () => {
+  bufferPointerView.getUint8();
+});
+
+Deno.bench("Deno.UnsafePointerView#getInt8", () => {
+  bufferPointerView.getInt8();
+});
+
+Deno.bench("Deno.UnsafePointerView#getUint16", () => {
+  bufferPointerView.getUint16();
+});
+
+Deno.bench("Deno.UnsafePointerView#getInt16", () => {
+  bufferPointerView.getInt16();
+});
+
+Deno.bench("Deno.UnsafePointerView#getUint32", () => {
+  bufferPointerView.getUint32();
+});
+
+Deno.bench("Deno.UnsafePointerView#getInt32", () => {
+  bufferPointerView.getInt32();
+});
+
+Deno.bench("Deno.UnsafePointerView#getBigUint64", () => {
+  bufferPointerView.getBigUint64();
+});
+
+Deno.bench("Deno.UnsafePointerView#getBigInt64", () => {
+  bufferPointerView.getBigInt64();
+});
+
+Deno.bench("Deno.UnsafePointerView#getFloat32", () => {
+  bufferPointerView.getFloat32();
+});
+
+Deno.bench("Deno.UnsafePointerView#getFloat64", () => {
+  bufferPointerView.getFloat64();
+});