From bb60912fa15fda1519fc8a7737ba7f3da996b080 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Thu, 7 Jun 2018 17:45:49 +0200
Subject: [PATCH] tgo: Print IR on panic (sometimes)

---
 tgo.go | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/tgo.go b/tgo.go
index b2fd317b..ced1ff16 100644
--- a/tgo.go
+++ b/tgo.go
@@ -1601,10 +1601,16 @@ func Compile(pkgName, runtimePath, outpath, target string, printIR bool) error {
 	}
 
 	// Compile Go code to IR.
-	parseErr := c.Parse(pkgName, buildTags)
-	if printIR {
-		fmt.Println(c.IR())
-	}
+	parseErr := func() error {
+		if printIR {
+			// Run this even if c.Parse() panics.
+			defer func() {
+				fmt.Println("IR until the error:")
+				fmt.Println(c.IR())
+			}()
+		}
+		return c.Parse(pkgName, buildTags)
+	}()
 	if parseErr != nil {
 		return parseErr
 	}