napi_h/bindgen_runtime/js_values/
number.rs

1use super::{check_status, sys};
2use crate::{bindgen_prelude::ToNapiValue, type_of, Error, Result};
3
4macro_rules! impl_number_conversions {
5  ( $( ($name:literal, $t:ty as $st:ty, $get:ident, $create:ident) ,)* ) => {
6    $(
7      impl $crate::bindgen_prelude::TypeName for $t {
8        fn type_name() -> &'static str {
9          $name
10        }
11
12        fn value_type() -> crate::ValueType {
13          crate::ValueType::Number
14        }
15      }
16
17      impl $crate::bindgen_prelude::ValidateNapiValue for $t { }
18
19      impl ToNapiValue for $t {
20        unsafe fn to_napi_value(env: $crate::sys::napi_env, val: $t) -> Result<$crate::sys::napi_value> {
21          let mut ptr = std::ptr::null_mut();
22          let val: $st = val.into();
23
24          check_status!(
25            unsafe { sys::$create(env, val, &mut ptr) },
26            "Failed to convert rust type `{}` into napi value",
27            $name,
28          )?;
29
30          Ok(ptr)
31        }
32      }
33
34      impl $crate::bindgen_prelude::FromNapiValue for $t {
35        unsafe fn from_napi_value(env: $crate::sys::napi_env, napi_val: $crate::sys::napi_value) -> Result<Self> {
36          let mut ret = 0 as $st;
37
38          check_status!(
39            unsafe { sys::$get(env, napi_val, &mut ret) },
40            "Failed to convert napi value {:?} into rust type `{}`",
41            type_of!(env, napi_val)?,
42            $name,
43          )?;
44
45          ret.try_into().map_err(|_| Error::from_reason(concat!("Failed to convert ", stringify!($st), " to ", stringify!($t))))
46        }
47      }
48    )*
49  };
50}
51
52impl_number_conversions!(
53  ("u8", u8 as u32, napi_get_value_uint32, napi_create_uint32),
54  ("i8", i8 as i32, napi_get_value_int32, napi_create_int32),
55  ("u16", u16 as u32, napi_get_value_uint32, napi_create_uint32),
56  ("i16", i16 as i32, napi_get_value_int32, napi_create_int32),
57  ("u32", u32 as u32, napi_get_value_uint32, napi_create_uint32),
58  ("i32", i32 as i32, napi_get_value_int32, napi_create_int32),
59  ("i64", i64 as i64, napi_get_value_int64, napi_create_int64),
60  ("f64", f64 as f64, napi_get_value_double, napi_create_double),
61);
62
63impl ToNapiValue for f32 {
64  unsafe fn to_napi_value(env: crate::sys::napi_env, val: f32) -> Result<crate::sys::napi_value> {
65    let mut ptr = std::ptr::null_mut();
66
67    check_status!(
68      unsafe { sys::napi_create_double(env, val.into(), &mut ptr) },
69      "Failed to convert rust type `f32` into napi value",
70    )?;
71
72    Ok(ptr)
73  }
74}
napi_h/bindgen_runtime/js_values/number.rs

napi_h/bindgen_runtime/js_values/
number.rs
