From 07066835dbe7140ca45aa0f0a2c2a5f814449a93 Mon Sep 17 00:00:00 2001
From: Peter Huene <phuene@mozilla.com>
Date: Tue, 25 Feb 2020 13:01:54 -0800
Subject: [PATCH] Implement `PartialEq` on `FuncType`.

---
 crates/api/src/types.rs  | 2 +-
 crates/c-api/src/wasi.rs | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/crates/api/src/types.rs b/crates/api/src/types.rs
index 968f62e32f..8e344d5d0a 100644
--- a/crates/api/src/types.rs
+++ b/crates/api/src/types.rs
@@ -168,7 +168,7 @@ fn from_wasmtime_abiparam(param: &ir::AbiParam) -> Option<ValType> {
 /// A descriptor for a function in a WebAssembly module.
 ///
 /// WebAssembly functions can have 0 or more parameters and results.
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub struct FuncType {
     params: Box<[ValType]>,
     results: Box<[ValType]>,
diff --git a/crates/c-api/src/wasi.rs b/crates/c-api/src/wasi.rs
index b03fe2b08d..bc5456479e 100644
--- a/crates/c-api/src/wasi.rs
+++ b/crates/c-api/src/wasi.rs
@@ -244,11 +244,7 @@ pub unsafe extern "C" fn wasi_instance_bind_import(
 
     match (*instance).wasi.get_export(name) {
         Some(export) => {
-            if export.ty().params() != func_type.params() {
-                return std::ptr::null_mut();
-            }
-
-            if export.ty().results() != func_type.results() {
+            if export.ty() != func_type {
                 return std::ptr::null_mut();
             }