From 1b971b539c2b4203d936834818820507f707da49 Mon Sep 17 00:00:00 2001
From: Marc Vertes <mvertes@free.fr>
Date: Wed, 12 Feb 2020 15:06:04 +0100
Subject: [PATCH] fix: correctly handle arbitrary type of literal array index

---
 _test/a40.go  | 23 +++++++++++++++++++++++
 interp/run.go |  2 +-
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 _test/a40.go

diff --git a/_test/a40.go b/_test/a40.go
new file mode 100644
index 000000000..7b5be36a9
--- /dev/null
+++ b/_test/a40.go
@@ -0,0 +1,23 @@
+package main
+
+import "fmt"
+
+type rule uint8
+
+const (
+	r0 rule = iota
+	r1
+	r2
+)
+
+var a = [...]int{
+	r0: 1,
+	r1: 12,
+}
+
+func main() {
+	fmt.Println(a)
+}
+
+// Output:
+// [1 12]
diff --git a/interp/run.go b/interp/run.go
index 7c21285a7..6c86e55f3 100644
--- a/interp/run.go
+++ b/interp/run.go
@@ -1461,7 +1461,7 @@ func arrayLit(n *node) {
 		if c.kind == keyValueExpr {
 			convertLiteralValue(c.child[1], rtype)
 			values[i] = genValue(c.child[1])
-			index[i] = int(c.child[0].rval.Int())
+			index[i] = int(vInt(c.child[0].rval))
 		} else {
 			convertLiteralValue(c, rtype)
 			values[i] = genValue(c)