From df9ea2a54d5362225b18070cdfe2d7e78199126c Mon Sep 17 00:00:00 2001
From: Ryan Dahl <ry@tinyclouds.org>
Date: Wed, 5 Oct 2022 09:29:30 -0400
Subject: [PATCH] Revert "Add benchmarks for V8 native function calls (#1079)"

This reverts commit 6444cb9d614ba82a1ecf8f35eaa574a694c49476.
---
 Cargo.toml          |   5 --
 benches/function.rs | 135 --------------------------------------------
 2 files changed, 140 deletions(-)
 delete mode 100644 benches/function.rs

diff --git a/Cargo.toml b/Cargo.toml
index f33809b5..c5b29122 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -106,10 +106,5 @@ name = "process"
 name = "build"
 path = "build.rs"
 
-[[bench]]
-name = "function"
-path = "benches/function.rs"
-harness = false
-
 [workspace]
 members = ["examples/android"]
diff --git a/benches/function.rs b/benches/function.rs
deleted file mode 100644
index 33370003..00000000
--- a/benches/function.rs
+++ /dev/null
@@ -1,135 +0,0 @@
-use std::os::raw::c_void;
-
-fn main() {
-  v8::V8::set_flags_from_string(
-    "--turbo_fast_api_calls --allow_natives_syntax",
-  );
-  let platform = v8::new_default_platform(0, false).make_shared();
-  v8::V8::initialize_platform(platform);
-  v8::V8::initialize();
-  let isolate = &mut v8::Isolate::new(v8::CreateParams::default());
-  let handle_scope = &mut v8::HandleScope::new(isolate);
-  let context = v8::Context::new(handle_scope);
-  let scope = &mut v8::ContextScope::new(handle_scope, context);
-  let global = context.global(scope);
-  {
-    let func = v8::Function::new(
-      scope,
-      |scope: &mut v8::HandleScope,
-       _: v8::FunctionCallbackArguments,
-       mut rv: v8::ReturnValue| {
-        rv.set(v8::Integer::new(scope, 42).into());
-      },
-    )
-    .unwrap();
-    let name = v8::String::new(scope, "new_").unwrap();
-    global.set(scope, name.into(), func.into()).unwrap();
-  }
-  {
-    extern "C" fn callback(info: *const v8::FunctionCallbackInfo) {
-      let scope = unsafe { &mut v8::CallbackScope::new(&*info) };
-      let mut rv =
-        unsafe { v8::ReturnValue::from_function_callback_info(info) };
-      rv.set(v8::Integer::new(scope, 42).into());
-    }
-    let func = v8::Function::new_raw(scope, callback).unwrap();
-    let name = v8::String::new(scope, "new_raw").unwrap();
-    global.set(scope, name.into(), func.into()).unwrap();
-  }
-  {
-    extern "C" fn callback(info: *const v8::FunctionCallbackInfo) {
-      let mut rv =
-        unsafe { v8::ReturnValue::from_function_callback_info(info) };
-      rv.set_uint32(42);
-    }
-    let func = v8::Function::new_raw(scope, callback).unwrap();
-    let name = v8::String::new(scope, "new_raw_set_uint32").unwrap();
-    global.set(scope, name.into(), func.into()).unwrap();
-  }
-  {
-    let func = v8::Function::new(
-      scope,
-      |_: &mut v8::HandleScope,
-       _: v8::FunctionCallbackArguments,
-       mut rv: v8::ReturnValue| {
-        rv.set_uint32(42);
-      },
-    )
-    .unwrap();
-    let name = v8::String::new(scope, "new_set_uint32").unwrap();
-    global.set(scope, name.into(), func.into()).unwrap();
-  }
-  {
-    fn fast_fn() -> i32 {
-      42
-    }
-    pub struct FastCall;
-    impl v8::fast_api::FastFunction for FastCall {
-      fn args(&self) -> &'static [v8::fast_api::Type] {
-        &[v8::fast_api::Type::V8Value]
-      }
-      fn return_type(&self) -> v8::fast_api::CType {
-        v8::fast_api::CType::Int32
-      }
-
-      fn function(&self) -> *const c_void {
-        fast_fn as _
-      }
-    }
-    let template = v8::FunctionTemplate::builder(
-      |scope: &mut v8::HandleScope,
-       _: v8::FunctionCallbackArguments,
-       mut rv: v8::ReturnValue| {
-        rv.set(v8::Integer::new(scope, 42).into());
-      },
-    )
-    .build_fast(scope, &FastCall, None);
-    let name = v8::String::new(scope, "new_fast").unwrap();
-    let value = template.get_function(scope).unwrap();
-
-    global.set(scope, name.into(), value.into()).unwrap();
-  }
-
-  let runs = 100_000_000;
-
-  for x in [
-    "new_",
-    "new_raw",
-    "new_set_uint32",
-    "new_raw_set_uint32",
-    "new_fast",
-  ] {
-    let code = format!(
-      "
-          function bench() {{ return {}(); }};
-          runs = {};
-          start = Date.now();
-          for (i = 0; i < runs; i++) bench();
-          Date.now() - start;
-        ",
-      x, runs
-    );
-
-    let r = eval(scope, &code).unwrap();
-    let number = r.to_number(scope).unwrap();
-    let total_ms = number.number_value(scope).unwrap();
-    let total_ns = 1e6 * total_ms;
-    let ns_per_run = total_ns / (runs as f64);
-    let mops_per_sec = (runs as f64) / (total_ms / 1000.0) / 1e6;
-    println!(
-      "{:.1} ns per run {:.1} million ops/sec → {}",
-      ns_per_run, mops_per_sec, x
-    );
-  }
-}
-
-fn eval<'s>(
-  scope: &mut v8::HandleScope<'s>,
-  code: &str,
-) -> Option<v8::Local<'s, v8::Value>> {
-  let scope = &mut v8::EscapableHandleScope::new(scope);
-  let source = v8::String::new(scope, code).unwrap();
-  let script = v8::Script::compile(scope, source, None).unwrap();
-  let r = script.run(scope);
-  r.map(|v| scope.escape(v))
-}