45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
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use std::mem;
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use std::ptr;
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use super::Value;
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use crate::error::check_status;
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use crate::{sys, Env, Error, JsObject, JsUnknown, NapiValue, Result, Status};
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#[derive(Clone, Copy, Debug)]
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pub struct JsFunction(pub(crate) Value);
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impl JsFunction {
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pub fn call(&self, this: Option<&JsObject>, args: &[JsUnknown]) -> Result<JsUnknown> {
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let raw_this = this
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.map(|v| v.into_raw())
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.or_else(|| {
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Env::from_raw(self.0.env)
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.get_undefined()
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.ok()
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.map(|u| u.into_raw())
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})
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.ok_or(Error::new(
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Status::Unknown,
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"Get raw this failed".to_owned(),
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))?;
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let mut raw_args = unsafe { mem::MaybeUninit::<[sys::napi_value; 8]>::uninit().assume_init() };
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for (i, arg) in args.into_iter().enumerate() {
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raw_args[i] = arg.0.value;
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}
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let mut return_value = ptr::null_mut();
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let status = unsafe {
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sys::napi_call_function(
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self.0.env,
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raw_this,
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self.0.value,
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args.len() as u64,
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&raw_args[0],
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&mut return_value,
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)
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};
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check_status(status)?;
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JsUnknown::from_raw(self.0.env, return_value)
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}
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}
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