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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.use crate::error::format_file_name;use crate::error::type_error;use crate::include_js_files;use crate::ops_metrics::OpMetrics;use crate::resources::ResourceId;use crate::Extension;use crate::OpState;use crate::Resource;use crate::ZeroCopyBuf;use anyhow::Error;use deno_ops::op;use std::cell::RefCell;use std::io::{stderr, stdout, Write};use std::rc::Rc;
pub(crate) fn init_builtins() -> Extension {  Extension::builder()    .js(include_js_files!(      prefix "deno:core",      "00_primordials.js",      "01_core.js",      "02_error.js",    ))    .ops(vec![      op_close::decl(),      op_try_close::decl(),      op_print::decl(),      op_resources::decl(),      op_wasm_streaming_feed::decl(),      op_wasm_streaming_set_url::decl(),      op_void_sync::decl(),      op_void_async::decl(),      // // TODO(@AaronO): track IO metrics for builtin streams      op_read::decl(),      op_write::decl(),      op_shutdown::decl(),      op_metrics::decl(),      op_format_file_name::decl(),      op_is_proxy::decl(),    ])    .ops(crate::ops_builtin_v8::init_builtins_v8())    .build()}
/// Return map of resources with id as key/// and string representation as value.#[op]pub fn op_resources(state: &mut OpState) -> Vec<(ResourceId, String)> {  state    .resource_table    .names()    .map(|(rid, name)| (rid, name.to_string()))    .collect()}
#[op]pub fn op_void_sync() {}
#[op]pub async fn op_void_async() {}
/// Remove a resource from the resource table.#[op]pub fn op_close(  state: &mut OpState,  rid: Option<ResourceId>,) -> Result<(), Error> {  // TODO(@AaronO): drop Option after improving type-strictness balance in  // serde_v8  let rid = rid.ok_or_else(|| type_error("missing or invalid `rid`"))?;  state.resource_table.close(rid)?;  Ok(())}
/// Try to remove a resource from the resource table. If there is no resource/// with the specified `rid`, this is a no-op.#[op]pub fn op_try_close(  state: &mut OpState,  rid: Option<ResourceId>,) -> Result<(), Error> {  // TODO(@AaronO): drop Option after improving type-strictness balance in  // serde_v8.  let rid = rid.ok_or_else(|| type_error("missing or invalid `rid`"))?;  let _ = state.resource_table.close(rid);  Ok(())}
#[op]pub fn op_metrics(state: &mut OpState) -> (OpMetrics, Vec<OpMetrics>) {  let aggregate = state.tracker.aggregate();  let per_op = state.tracker.per_op();  (aggregate, per_op)}
/// Builtin utility to print to stdout/stderr#[op]pub fn op_print(msg: String, is_err: bool) -> Result<(), Error> {  if is_err {    stderr().write_all(msg.as_bytes())?;    stderr().flush().unwrap();  } else {    stdout().write_all(msg.as_bytes())?;    stdout().flush().unwrap();  }  Ok(())}
pub struct WasmStreamingResource(pub(crate) RefCell<v8::WasmStreaming>);
impl Resource for WasmStreamingResource {  fn close(self: Rc<Self>) {    // At this point there are no clones of Rc<WasmStreamingResource> on the    // resource table, and no one should own a reference outside of the stack.    // Therefore, we can be sure `self` is the only reference.    if let Ok(wsr) = Rc::try_unwrap(self) {      wsr.0.into_inner().finish();    } else {      panic!("Couldn't consume WasmStreamingResource.");    }  }}
/// Feed bytes to WasmStreamingResource.#[op]pub fn op_wasm_streaming_feed(  state: &mut OpState,  rid: ResourceId,  bytes: ZeroCopyBuf,) -> Result<(), Error> {  let wasm_streaming =    state.resource_table.get::<WasmStreamingResource>(rid)?;
  wasm_streaming.0.borrow_mut().on_bytes_received(&bytes);
  Ok(())}
#[op]pub fn op_wasm_streaming_set_url(  state: &mut OpState,  rid: ResourceId,  url: String,) -> Result<(), Error> {  let wasm_streaming =    state.resource_table.get::<WasmStreamingResource>(rid)?;
  wasm_streaming.0.borrow_mut().set_url(&url);
  Ok(())}
#[op]async fn op_read(  state: Rc<RefCell<OpState>>,  rid: ResourceId,  buf: ZeroCopyBuf,) -> Result<u32, Error> {  let resource = state.borrow().resource_table.get_any(rid)?;  resource.read(buf).await.map(|n| n as u32)}
#[op]async fn op_write(  state: Rc<RefCell<OpState>>,  rid: ResourceId,  buf: ZeroCopyBuf,) -> Result<u32, Error> {  let resource = state.borrow().resource_table.get_any(rid)?;  resource.write(buf).await.map(|n| n as u32)}
#[op]async fn op_shutdown(  state: Rc<RefCell<OpState>>,  rid: ResourceId,) -> Result<(), Error> {  let resource = state.borrow().resource_table.get_any(rid)?;  resource.shutdown().await}
#[op]fn op_format_file_name(file_name: String) -> String {  format_file_name(&file_name)}
#[op]fn op_is_proxy(value: serde_v8::Value) -> bool {  value.v8_value.is_proxy()}