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Add customisable is_type_of

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This commit is contained in:
Ingvar Stepanyan
2019-03-26 19:29:46 +00:00
parent 4211fcd992
commit cb880bdbff
6 changed files with 43 additions and 20 deletions
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8
crates/macro-support/src/parser.rs
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@ -45,6 +45,7 @@ macro_rules! attrgen {
(readonly, Readonly(Span)),
(js_name, JsName(Span, String, Span)),
(js_class, JsClass(Span, String, Span)),
(is_type_of, IsTypeOf(Span, syn::Expr)),
(extends, Extends(Span, syn::Path)),
(vendor_prefix, VendorPrefix(Span, Ident)),
(variadic, Variadic(Span)),
@ -240,6 +241,11 @@ impl Parse for BindgenAttr {
return Ok(BindgenAttr::$variant(attr_span, input.parse()?));
});
(@parser $variant:ident(Span, syn::Expr)) => ({
input.parse::<Token![=]>()?;
return Ok(BindgenAttr::$variant(attr_span, input.parse()?));
});
(@parser $variant:ident(Span, String, Span)) => ({
input.parse::<Token![=]>()?;
let (val, span) = match input.parse::<syn::LitStr>() {
@ -515,6 +521,7 @@ impl ConvertToAst<BindgenAttrs> for syn::ForeignItemType {
.js_name()
.map(|s| s.0)
.map_or_else(|| self.ident.to_string(), |s| s.to_string());
let is_type_of = attrs.is_type_of().cloned();
let shim = format!("__wbg_instanceof_{}_{}", self.ident, ShortHash(&self.ident));
let mut extends = Vec::new();
let mut vendor_prefixes = Vec::new();
@ -537,6 +544,7 @@ impl ConvertToAst<BindgenAttrs> for syn::ForeignItemType {
attrs: self.attrs,
doc_comment: None,
instanceof_shim: shim,
is_type_of,
rust_name: self.ident,
js_name,
extends,