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Add cast to type for constants to avoid mis-typing.

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This commit is contained in:
Stephen Chung
2020-09-13 22:36:24 +08:00
committed by J Henry Waugh
parent 848bdf3f01
commit 6dc5a81d53
3 changed files with 6 additions and 5 deletions
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3
codegen/src/module.rs
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@@ -140,12 +140,13 @@ impl Parse for Module {
ref expr,
ident,
attrs,
ty,
..
}) => {
// #[cfg] attributes are not allowed on const declarations
crate::attrs::deny_cfg_attr(&attrs)?;
if let syn::Visibility::Public(_) = vis {
consts.push((ident.to_string(), expr.as_ref().clone()));
consts.push((ident.to_string(), ty.clone(), expr.as_ref().clone()));
}
}
_ => {}

6
codegen/src/rhai_module.rs
View File

@@ -6,7 +6,7 @@ use crate::attrs::ExportScope;
use crate::function::ExportedFn;
use crate::module::Module;
pub(crate) type ExportedConst = (String, syn::Expr);
pub(crate) type ExportedConst = (String, Box<syn::Type>, syn::Expr);
pub(crate) fn generate_body(
fns: &mut [ExportedFn],
@@ -20,11 +20,11 @@ pub(crate) fn generate_body(
let mut set_mod_blocks: Vec<syn::ExprBlock> = Vec::new();
let str_type_path = syn::parse2::<syn::Path>(quote! { str }).unwrap();
for (const_name, const_expr) in consts {
for (const_name, const_type, const_expr) in consts {
let const_literal = syn::LitStr::new(&const_name, proc_macro2::Span::call_site());
set_const_stmts.push(
syn::parse2::<syn::Stmt>(quote! {
m.set_var(#const_literal, #const_expr);
m.set_var(#const_literal, (#const_expr) as #const_type);
})
.unwrap(),
);