From 6229d37dcfec393880109c7aaed1c18d08756631 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Tue, 28 Dec 2021 18:01:40 -0700
Subject: stage2: handle function dependency failures without crashing

---
 src/Compilation.zig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/Compilation.zig')

diff --git a/src/Compilation.zig b/src/Compilation.zig
index 6e3a955632..cd4794554e 100644
--- a/src/Compilation.zig
+++ b/src/Compilation.zig
@@ -2350,7 +2350,12 @@ fn processOneJob(comp: *Compilation, job: Job, main_progress_node: *std.Progress
 
                 var air = module.analyzeFnBody(decl, func, sema_arena) catch |err| switch (err) {
                     error.AnalysisFail => {
-                        assert(func.state != .in_progress);
+                        if (func.state == .in_progress) {
+                            // If this decl caused the compile error, the analysis field would
+                            // be changed to indicate it was this Decl's fault. Because this
+                            // did not happen, we infer here that it was a dependency failure.
+                            func.state = .dependency_failure;
+                        }
                         return;
                     },
                     error.OutOfMemory => return error.OutOfMemory,
-- 
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