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denoland-deno/ext/console/lib.rs
2024-01-04 20:34:51 +01:00

40 lines
1 KiB
Rust

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use deno_core::op2;
use deno_core::v8;
use std::path::PathBuf;
deno_core::extension!(
deno_console,
ops = [op_is_any_arraybuffer, op_preview_entries,],
esm = ["01_console.js"],
);
pub fn get_declaration() -> PathBuf {
PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_console.d.ts")
}
#[op2(fast)]
fn op_is_any_arraybuffer(value: &v8::Value) -> bool {
value.is_array_buffer() || value.is_shared_array_buffer()
}
#[op2]
pub fn op_preview_entries<'s>(
scope: &mut v8::HandleScope<'s>,
object: &v8::Object,
slow_path: bool,
) -> v8::Local<'s, v8::Value> {
let (entries, is_key_value) = object.preview_entries(scope);
match entries {
None => v8::undefined(scope).into(),
Some(entries) => {
if !slow_path {
return entries.into();
}
let ret: [v8::Local<v8::Value>; 2] =
[entries.into(), v8::Boolean::new(scope, is_key_value).into()];
v8::Array::new_with_elements(scope, &ret).into()
}
}
}