bitwarden_error_macro/basic/
attribute.rs1use quote::quote;
2
3pub(crate) fn bitwarden_error_basic(
4 input: &syn::DeriveInput,
5 type_identifier: &proc_macro2::Ident,
6 export_as_identifier: &proc_macro2::Ident,
7) -> proc_macro::TokenStream {
8 let wasm =
9 cfg!(feature = "wasm").then(|| basic_error_wasm(type_identifier, export_as_identifier));
10 quote! {
11 #input
12
13 #wasm
14 }
15 .into()
16}
17
18fn basic_error_wasm(
19 type_identifier: &proc_macro2::Ident,
20 export_as_identifier: &proc_macro2::Ident,
21) -> proc_macro2::TokenStream {
22 let export_as_identifier_str = export_as_identifier.to_string();
23 let is_error_function_name = format!("is{}", export_as_identifier);
24 let ts_code_str = format!(
25 r##"r#"
26 export interface {export_as_identifier} extends Error {{
27 name: "{export_as_identifier}";
28 }};
29
30 export function {is_error_function_name}(error: any): error is {export_as_identifier};
31 "#"##
32 );
33 let ts_code: proc_macro2::TokenStream = ts_code_str
34 .parse()
35 .expect("Could not generate TypeScript code");
36
37 quote! {
38 const _: () = {
39 use bitwarden_error::wasm_bindgen::prelude::*;
40 use bitwarden_error::wasm_bindgen as wasm_bindgen;
41
42 #[wasm_bindgen(typescript_custom_section)]
43 const TS_APPEND_CONTENT: &'static str = #ts_code;
44
45 #[wasm_bindgen(js_name = #is_error_function_name, skip_typescript)]
46 pub fn is_error(error: &JsValue) -> bool {
47 let name_js_value = ::bitwarden_error::js_sys::Reflect::get(&error, &JsValue::from_str("name")).unwrap_or(JsValue::NULL);
48 let name = name_js_value.as_string().unwrap_or_default();
49 name == #export_as_identifier_str
50 }
51
52 #[automatically_derived]
53 impl From<#type_identifier> for JsValue {
54 fn from(error: #type_identifier) -> Self {
55 let js_error = ::bitwarden_error::wasm::SdkJsError::new(error.to_string());
56 js_error.set_name(#export_as_identifier_str.to_owned());
57 js_error.into()
58 }
59 }
60 };
61 }
62}