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use crate::error::type_error;
use crate::error::AnyError;
use crate::include_js_files;
use crate::op_sync;
use crate::resources::ResourceId;
use crate::Extension;
use crate::OpState;
use crate::Resource;
use crate::ZeroCopyBuf;
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", op_sync(op_close)),
("op_try_close", op_sync(op_try_close)),
("op_print", op_sync(op_print)),
("op_resources", op_sync(op_resources)),
("op_wasm_streaming_feed", op_sync(op_wasm_streaming_feed)),
("op_wasm_streaming_abort", op_sync(op_wasm_streaming_abort)),
])
.build()
}
pub fn op_resources(
state: &mut OpState,
_args: (),
_: (),
) -> Result<Vec<(ResourceId, String)>, AnyError> {
let serialized_resources = state
.resource_table
.names()
.map(|(rid, name)| (rid, name.to_string()))
.collect();
Ok(serialized_resources)
}
pub fn op_close(
state: &mut OpState,
rid: Option<ResourceId>,
_: (),
) -> Result<(), AnyError> {
let rid = rid.ok_or_else(|| type_error("missing or invalid `rid`"))?;
state.resource_table.close(rid)?;
Ok(())
}
pub fn op_try_close(
state: &mut OpState,
rid: Option<ResourceId>,
_: (),
) -> Result<(), AnyError> {
let rid = rid.ok_or_else(|| type_error("missing or invalid `rid`"))?;
let _ = state.resource_table.close(rid);
Ok(())
}
pub fn op_print(
_state: &mut OpState,
msg: String,
is_err: bool,
) -> Result<(), AnyError> {
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<rusty_v8::WasmStreaming>);
impl Resource for WasmStreamingResource {
fn close(self: Rc<Self>) {
if let Ok(wsr) = Rc::try_unwrap(self) {
wsr.0.into_inner().finish();
} else {
panic!("Couldn't consume WasmStreamingResource.");
}
}
}
pub fn op_wasm_streaming_feed(
state: &mut OpState,
rid: ResourceId,
bytes: ZeroCopyBuf,
) -> Result<(), AnyError> {
let wasm_streaming =
state.resource_table.get::<WasmStreamingResource>(rid)?;
wasm_streaming.0.borrow_mut().on_bytes_received(&bytes);
Ok(())
}
pub fn op_wasm_streaming_abort(
state: &mut OpState,
rid: ResourceId,
exception: serde_v8::Value,
) -> Result<(), AnyError> {
let wasm_streaming =
state.resource_table.take::<WasmStreamingResource>(rid)?;
if let Ok(wsr) = Rc::try_unwrap(wasm_streaming) {
wsr.0.into_inner().abort(Some(exception.v8_value));
} else {
panic!("Couldn't consume WasmStreamingResource.");
}
Ok(())
}