fp_bindgen/
primitives.rs

1use quote::{quote, ToTokens};
2use std::str::FromStr;
3
4/// Type of primitive that is supported out-of-the-box.
5#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
6pub enum Primitive {
7    Bool,
8    F32,
9    F64,
10    I8,
11    I16,
12    I32,
13    I64,
14    U8,
15    U16,
16    U32,
17    U64,
18}
19
20impl Primitive {
21    pub fn name(&self) -> String {
22        use Primitive::*;
23        let string = match self {
24            Bool => "bool",
25            F32 => "f32",
26            F64 => "f64",
27            I8 => "i8",
28            I16 => "i16",
29            I32 => "i32",
30            I64 => "i64",
31            U8 => "u8",
32            U16 => "u16",
33            U32 => "u32",
34            U64 => "u64",
35        };
36        string.to_owned()
37    }
38
39    pub fn js_array_name(&self) -> Option<String> {
40        use Primitive::*;
41        match self {
42            U8 => Some("Uint8Array"),
43            U16 => Some("Uint16Array"),
44            U32 => Some("Uint32Array"),
45            I8 => Some("Int8Array"),
46            I16 => Some("Int16Array"),
47            I32 => Some("Int32Array"),
48            F32 => Some("Float32Array"),
49            F64 => Some("Float64Array"),
50            _ => None,
51        }
52        .map(|s| s.to_owned())
53    }
54}
55
56impl FromStr for Primitive {
57    type Err = String;
58
59    fn from_str(string: &str) -> Result<Self, Self::Err> {
60        let primitive = match string {
61            "bool" => Primitive::Bool,
62            "f32" => Primitive::F32,
63            "f64" => Primitive::F64,
64            "i8" => Primitive::I8,
65            "i16" => Primitive::I16,
66            "i32" => Primitive::I32,
67            "i64" => Primitive::I64,
68            "u8" => Primitive::U8,
69            "u16" => Primitive::U16,
70            "u32" => Primitive::U32,
71            "u64" => Primitive::U64,
72            string => return Err(format!("Unknown primitive type: \"{string}\"")),
73        };
74        Ok(primitive)
75    }
76}
77
78impl ToTokens for Primitive {
79    fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
80        (match self {
81            Primitive::Bool => quote! {bool},
82            Primitive::F32 => quote! {f32},
83            Primitive::F64 => quote! {f64},
84            Primitive::I8 => quote! {i8},
85            Primitive::I16 => quote! {i16},
86            Primitive::I32 => quote! {i32},
87            Primitive::I64 => quote! {i64},
88            Primitive::U8 => quote! {u8},
89            Primitive::U16 => quote! {u16},
90            Primitive::U32 => quote! {u32},
91            Primitive::U64 => quote! {u64},
92        })
93        .to_tokens(tokens)
94    }
95}
fp_bindgen/primitives.rs

fp_bindgen/
primitives.rs
