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Add skip_typescript attribute to prevent .d.ts emit (#2016)

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* Add skip_typescript attribute to prevent .d.ts emit

* Add guide page for typescript attribute
This commit is contained in:
Joey Watts
2020-03-03 10:34:28 -05:00
committed by GitHub
parent 3f4acc453b
commit 7ffb5ed70c
12 changed files with 227 additions and 56 deletions
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24
crates/macro-support/src/parser.rs
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@ -51,6 +51,7 @@ macro_rules! attrgen {
(vendor_prefix, VendorPrefix(Span, Ident)),
(variadic, Variadic(Span)),
(typescript_custom_section, TypescriptCustomSection(Span)),
(skip_typescript, SkipTypescript(Span)),
(start, Start(Span)),
(skip, Skip(Span)),
(typescript_type, TypeScriptType(Span, String, Span)),
@ -354,9 +355,11 @@ impl<'a> ConvertToAst<BindgenAttrs> for &'a mut syn::ItemStruct {
getter: Ident::new(&getter, Span::call_site()),
setter: Ident::new(&setter, Span::call_site()),
comments,
generate_typescript: attrs.skip_typescript().is_none(),
});
attrs.check_used()?;
}
let generate_typescript = attrs.skip_typescript().is_none();
let comments: Vec<String> = extract_doc_comments(&self.attrs);
attrs.check_used()?;
Ok(ast::Struct {
@ -365,6 +368,7 @@ impl<'a> ConvertToAst<BindgenAttrs> for &'a mut syn::ItemStruct {
fields,
comments,
is_inspectable,
generate_typescript,
})
}
}
@ -720,6 +724,7 @@ fn function_from_decl(
rust_attrs: attrs,
rust_vis: vis,
r#async: sig.asyncness.is_some(),
generate_typescript: opts.skip_typescript().is_none(),
},
method_self,
))
@ -798,11 +803,12 @@ impl<'a> MacroParse<(Option<BindgenAttrs>, &'a mut TokenStream)> for syn::Item {
};
f.macro_parse(program, opts)?;
}
syn::Item::Enum(e) => {
if let Some(opts) = opts {
opts.check_used()?;
}
e.macro_parse(program, (tokens,))?;
syn::Item::Enum(mut e) => {
let opts = match opts {
Some(opts) => opts,
None => BindgenAttrs::find(&mut e.attrs)?,
};
e.macro_parse(program, (tokens, opts))?;
}
syn::Item::Const(mut c) => {
let opts = match opts {
@ -1032,15 +1038,17 @@ fn import_enum(enum_: syn::ItemEnum, program: &mut ast::Program) -> Result<(), D
Ok(())
}
impl<'a> MacroParse<(&'a mut TokenStream,)> for syn::ItemEnum {
impl<'a> MacroParse<(&'a mut TokenStream, BindgenAttrs)> for syn::ItemEnum {
fn macro_parse(
self,
program: &mut ast::Program,
(tokens,): (&'a mut TokenStream,),
(tokens, opts): (&'a mut TokenStream, BindgenAttrs),
) -> Result<(), Diagnostic> {
if self.variants.len() == 0 {
bail_span!(self, "cannot export empty enums to JS");
}
let generate_typescript = opts.skip_typescript().is_none();
opts.check_used()?;
// Check if the first value is a string literal
match self.variants[0].discriminant {
@ -1141,8 +1149,8 @@ impl<'a> MacroParse<(&'a mut TokenStream,)> for syn::ItemEnum {
variants,
comments,
hole,
generate_typescript,
});
Ok(())
}
}