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Clean

This commit is contained in:
Sergey Pepyakin 2019-01-25 13:06:04 +01:00
parent 27c5501ab0
commit 0f6b3e15f4
1 changed files with 8 additions and 1 deletions
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9
derive/src/codegen.rs
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@ -1,3 +1,8 @@
//! This module generates a trait implementation for `Externals` on the target type.
//! It also generates a function called `resolve` that returns a `ModuleImportResolved`.
//!
//! The code generation is rather simple but it relies heavily on type inference.
use crate::parser::{FuncDef, ImplBlockDef}; use crate::parser::{FuncDef, ImplBlockDef};
use proc_macro2::{Ident, Span, TokenStream}; use proc_macro2::{Ident, Span, TokenStream};
use quote::{quote, quote_spanned, ToTokens}; use quote::{quote, quote_spanned, ToTokens};
@ -170,7 +175,9 @@ fn emit_resolve_func_arm(func: &FuncDef) -> TokenStream {
}; };
// at this point types of all variables and return_val are inferred. // at this point types of all variables and return_val are inferred.
if signature.params() != &[#(#params_materialized_tys),*] || signature.return_type() != #materialized_return_ty { if signature.params() != &[#(#params_materialized_tys),*]
|| signature.return_type() != #materialized_return_ty
{
return Err(Error::Instantiation( return Err(Error::Instantiation(
format!("Export {} has different signature {:?}", #string_ident, signature), format!("Export {} has different signature {:?}", #string_ident, signature),
)); ));