From 921fb83d2fd38a4f65b7155fb53489ec2cefb664 Mon Sep 17 00:00:00 2001
From: Adrien Delorme <azr@users.noreply.github.com>
Date: Wed, 2 Mar 2022 11:49:13 +0100
Subject: [PATCH] add Variable.References function

---
 hcl2template/types.variables.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/hcl2template/types.variables.go b/hcl2template/types.variables.go
index 86b32032d..e5bfad8f1 100644
--- a/hcl2template/types.variables.go
+++ b/hcl2template/types.variables.go
@@ -70,6 +70,19 @@ func (v *Variable) Type() cty.Type {
 	return v.ExpectedType
 }
 
+func (v *Variable) References() ([]*addrs.Reference, hcl.Diagnostics) {
+	if len(v.Values) == 0 {
+		return nil, nil
+	}
+	refs := []*addrs.Reference{}
+	var diags hcl.Diagnostics
+	for _, v := range v.Values[len(v.Values)-1].Expr.Variables() {
+		ref, moreDiags := addrs.ParseRef(v)
+		diags = append(diags, moreDiags...)
+		refs = append(refs, ref)
+	}
+	return refs, diags
+}
 func (v *Variable) GoString() string {
 	b := &strings.Builder{}
 	fmt.Fprintf(b, "{type:%s", v.ExpectedType.GoString())