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feat(unstable): add Deno.fstatSync and fstat (#6425)

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Casper Beyer 2020-06-22 20:58:52 +08:00 • committed by GitHub
parent 79adc7b000
commit 6b3be01a00
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46
cli/ops/fs.rs
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@ -23,6 +23,7 @@ pub fn init(i: &mut CoreIsolate, s: &State) {
i.register_op("op_open", s.stateful_json_op2(op_open));
i.register_op("op_seek", s.stateful_json_op2(op_seek));
i.register_op("op_fsync", s.stateful_json_op2(op_fsync));
i.register_op("op_fstat", s.stateful_json_op2(op_fstat));
i.register_op("op_umask", s.stateful_json_op(op_umask));
i.register_op("op_chdir", s.stateful_json_op(op_chdir));
i.register_op("op_mkdir", s.stateful_json_op(op_mkdir));
@ -250,6 +251,51 @@ fn op_fsync(
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct FstatArgs {
promise_id: Option<u64>,
rid: i32,
}
fn op_fstat(
isolate_state: &mut CoreIsolateState,
state: &State,
args: Value,
_zero_copy: &mut [ZeroCopyBuf],
) -> Result<JsonOp, OpError> {
state.check_unstable("Deno.fstat");
let args: FstatArgs = serde_json::from_value(args)?;
let rid = args.rid as u32;
let resource_table = isolate_state.resource_table.clone();
let is_sync = args.promise_id.is_none();
if is_sync {
let mut resource_table = resource_table.borrow_mut();
let metadata = std_file_resource(&mut resource_table, rid, |r| match r {
Ok(std_file) => std_file.metadata().map_err(OpError::from),
Err(_) => Err(OpError::type_error(
"cannot stat this type of resource".to_string(),
)),
})?;
Ok(JsonOp::Sync(get_stat_json(metadata).unwrap()))
} else {
let fut = async move {
let mut resource_table = resource_table.borrow_mut();
let metadata =
std_file_resource(&mut resource_table, rid, |r| match r {
Ok(std_file) => std_file.metadata().map_err(OpError::from),
Err(_) => Err(OpError::type_error(
"cannot stat this type of resource".to_string(),
)),
})?;
Ok(get_stat_json(metadata).unwrap())
};
Ok(JsonOp::Async(fut.boxed_local()))
}
}
#[derive(Deserialize)]
struct UmaskArgs {
mask: Option<u32>,