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Merge pull request #52 from xanathar/pr/enum-negative-values

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Added support for enums with negative values
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Yoshifumi Kawai 2023-09-20 18:51:16 +09:00 committed by GitHub
commit 3df9df4e41
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1 changed files with 11 additions and 2 deletions
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13
csbindgen/src/parser.rs
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@ -314,11 +314,20 @@ pub fn collect_enum(ast: &syn::File, result: &mut Vec<RustEnum>) {
for v in &t.variants { for v in &t.variants {
let name = v.ident.to_string(); let name = v.ident.to_string();
let mut value = None; let mut value = None;
if let Some((_, syn::Expr::Lit(x))) = &v.discriminant {
if let syn::Lit::Int(x) = &x.lit { match &v.discriminant {
Some((_, syn::Expr::Lit(x))) => if let syn::Lit::Int(x) = &x.lit {
let digits = x.base10_digits().to_string(); let digits = x.base10_digits().to_string();
value = Some(digits); value = Some(digits);
} }
Some((_, syn::Expr::Unary(u))) if matches!(u.op, syn::UnOp::Neg(_)) => {
if let syn::Expr::Lit(x) = &*u.expr {
if let syn::Lit::Int(x) = &x.lit {
value = Some(format!("-{}", x.base10_digits()));
}
}
}
_ => (),
} }
fields.push((name, value)); fields.push((name, value));