From 5f25f457eca1e04e577aae8e60fe640bb32d36fc Mon Sep 17 00:00:00 2001
From: Philip Herron <philip.herron@embecosm.com>
Date: Mon, 17 Oct 2022 17:18:30 +0100
Subject: Add hir lowering of closure expressions

In the AST we have ClosureExprInner and ClosureExprInnerTyped the first
is the closure expression of the form:

    let closure_inferred  = |i| i + 1;

The second is of the form:

    let closure_annotated = |i: i32| -> i32 { i + 1 };

Both of these can be seguared into a single HIR::ClosureExpr with an
optional return type and parameter types.

Addresses #195
---
 gcc/rust/backend/rust-compile-expr.cc | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'gcc/rust/backend/rust-compile-expr.cc')

diff --git a/gcc/rust/backend/rust-compile-expr.cc b/gcc/rust/backend/rust-compile-expr.cc
index 9ff2be6..d66aa5d 100644
--- a/gcc/rust/backend/rust-compile-expr.cc
+++ b/gcc/rust/backend/rust-compile-expr.cc
@@ -2798,5 +2798,11 @@ CompileExpr::visit (HIR::ArrayIndexExpr &expr)
 						   expr.get_locus ());
 }
 
+void
+CompileExpr::visit (HIR::ClosureExpr &expr)
+{
+  gcc_unreachable ();
+}
+
 } // namespace Compile
 } // namespace Rust
-- 
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