From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Andreas Haas <ahaas@chromium.org>
Date: Sun, 28 Jul 2024 09:20:12 +0200
Subject: src: stop using deprecated fields of `v8::FastApiCallbackOptions`

Two fields on the `v8::FastApiCallbackOptions` struct were deprecated
recently: `fallback` and `wasm_memory`. This PR removes uses of these
two fields in node.js.

(This is a subset of upstream commit d0000b118 from the `canary-base`
branch of Node.js. This patch can be removed when Electron upgrades to
a stable Node release that contains the change. -- Charles)

diff --git a/src/crypto/crypto_timing.cc b/src/crypto/crypto_timing.cc
index 3d8ccc77b5952a999c5fe48792259d32b402c460..867a1c4aca54b9d41490d23a5eb55088b7e941cc 100644
--- a/src/crypto/crypto_timing.cc
+++ b/src/crypto/crypto_timing.cc
@@ -59,7 +59,8 @@ bool FastTimingSafeEqual(Local<Value> receiver,
   if (a.length() != b.length() || !a.getStorageIfAligned(&data_a) ||
       !b.getStorageIfAligned(&data_b)) {
     TRACK_V8_FAST_API_CALL("crypto.timingSafeEqual.error");
-    options.fallback = true;
+    v8::HandleScope scope(options.isolate);
+    THROW_ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH(options.isolate);
     return false;
   }
 
diff --git a/src/histogram.cc b/src/histogram.cc
index 5641990e0bac455c33ddf7b9a865deba871516e7..bd757f42e02391abbeec007d9c4cea60bcdfa6a4 100644
--- a/src/histogram.cc
+++ b/src/histogram.cc
@@ -195,7 +195,8 @@ void HistogramBase::FastRecord(Local<Value> unused,
                                const int64_t value,
                                FastApiCallbackOptions& options) {
   if (value < 1) {
-    options.fallback = true;
+    Environment* env = Environment::GetCurrent(options.isolate);
+    THROW_ERR_OUT_OF_RANGE(env, "value is out of range");
     return;
   }
   HistogramBase* histogram;
diff --git a/src/node_file.cc b/src/node_file.cc
index 37172158d318d6569194fd3c5441d107e155e54c..41498615a37945111348e22b18214c3bcc9533a0 100644
--- a/src/node_file.cc
+++ b/src/node_file.cc
@@ -1074,13 +1074,8 @@ static int32_t FastInternalModuleStat(
     // NOLINTNEXTLINE(runtime/references) This is V8 api.
     FastApiCallbackOptions& options) {
   // This needs a HandleScope which needs an isolate.
-  Isolate* isolate = Isolate::TryGetCurrent();
-  if (!isolate) {
-    options.fallback = true;
-    return -1;
-  }
-
-  HandleScope scope(isolate);
+  Environment* env = Environment::GetCurrent(options.isolate);
+  HandleScope scope(env->isolate());
 
   auto path = std::filesystem::path(input.data, input.data + input.length);
 
diff --git a/src/node_wasi.cc b/src/node_wasi.cc
index 090866960beb8f1759c99e95536924b8b61fb723..3f91b651b83a20e70d5b368e012f5ee4b9d16092 100644
--- a/src/node_wasi.cc
+++ b/src/node_wasi.cc
@@ -275,17 +275,19 @@ R WASI::WasiFunction<FT, F, R, Args...>::FastCallback(
     return EinvalError<R>();
   }
 
-  if (options.wasm_memory == nullptr || wasi->memory_.IsEmpty()) [[unlikely]] {
-    // fallback to slow path which to throw an error about missing memory.
-    options.fallback = true;
+  v8::Isolate* isolate = receiver->GetIsolate();
+  v8::HandleScope handle_scope(isolate);
+  if (wasi->memory_.IsEmpty()) {
+    THROW_ERR_WASI_NOT_STARTED(isolate);
     return EinvalError<R>();
   }
-  uint8_t* memory = nullptr;
-  CHECK(options.wasm_memory->getStorageIfAligned(&memory));
 
-  return F(*wasi,
-           {reinterpret_cast<char*>(memory), options.wasm_memory->length()},
-           args...);
+  Local<ArrayBuffer> ab = wasi->memory_.Get(isolate)->Buffer();
+  size_t mem_size = ab->ByteLength();
+  char* mem_data = static_cast<char*>(ab->Data());
+  CHECK_NOT_NULL(mem_data);
+
+  return F(*wasi, {mem_data, mem_size}, args...);
 }
 
 namespace {