From 7a392b07166c089979e69d4c8a68da3298964c28 Mon Sep 17 00:00:00 2001
From: Nadrieril
Date: Mon, 7 Dec 2020 17:48:20 +0000
Subject: Defer name errors to typechecking

We aren't supposed to inspect anything before alternatives are chosen
---
 dhall/src/semantics/tck/typecheck.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'dhall/src/semantics/tck')

diff --git a/dhall/src/semantics/tck/typecheck.rs b/dhall/src/semantics/tck/typecheck.rs
index 5a44c9c..e14bcc6 100644
--- a/dhall/src/semantics/tck/typecheck.rs
+++ b/dhall/src/semantics/tck/typecheck.rs
@@ -184,6 +184,11 @@ pub fn type_with<'cx, 'hir>(
 ) -> Result<Tir<'cx, 'hir>, TypeError> {
     let tir = match hir.kind() {
         HirKind::Var(var) => Tir::from_hir(hir, env.lookup(*var)),
+        HirKind::MissingVar(var) => mkerr(
+            ErrorBuilder::new(format!("unbound variable `{}`", var))
+                .span_err(hir.span(), "not found in this scope")
+                .format(),
+        )?,
         HirKind::Import(import) => {
             let typed = env.cx()[import].unwrap_result();
             Tir::from_hir(hir, typed.ty.clone())
-- 
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