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Add support for raw pointers in Rust

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This commit is contained in:
Alex Crichton
2017-12-20 07:35:14 -08:00
parent 737bd8c965
commit 66ae545bff
3 changed files with 58 additions and 1 deletions
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20
crates/wasm-bindgen-macro/src/ast.rs
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@ -29,6 +29,8 @@ pub enum Type {
ByValue(syn::Ident),
ByRef(syn::Ident),
ByMutRef(syn::Ident),
RawMutPtr(syn::Ident),
RawConstPtr(syn::Ident),
JsObject,
JsObjectRef,
}
@ -240,6 +242,20 @@ impl Type {
_ => panic!("unsupported reference type"),
}
}
syn::Type::Ptr(ref p) => {
let mutable = p.const_token.is_none();
let ident = match p.ty.ty {
syn::Type::Path(syn::TypePath { qself: None, ref path }) => {
extract_path_ident(path)
}
_ => panic!("unsupported reference type"),
};
if mutable {
Type::RawMutPtr(ident)
} else {
Type::RawConstPtr(ident)
}
}
syn::Type::Path(syn::TypePath { qself: None, ref path }) => {
let ident = extract_path_ident(path);
match ident.sym.as_str() {
@ -266,7 +282,9 @@ impl Type {
fn shared(&self) -> shared::Type {
match *self {
Type::Integer(_) => shared::Type::Number,
Type::Integer(_) |
Type::RawConstPtr(_) |
Type::RawMutPtr(_) => shared::Type::Number,
Type::BorrowedStr => shared::Type::BorrowedStr,
Type::String => shared::Type::String,
Type::ByValue(n) => shared::Type::ByValue(n.to_string()),