update vendor and go.modadd_contact_groups

1 files changed, 20 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/hcl2/hcl/hclsyntax/expression_template.go b/vendor/github.com/hashicorp/hcl2/hcl/hclsyntax/expression_template.go
index fa79e3d..ca3dae1 100644
--- a/vendor/github.com/hashicorp/hcl2/hcl/hclsyntax/expression_template.go
+++ b/vendor/github.com/hashicorp/hcl2/hcl/hclsyntax/expression_template.go
@@ -89,6 +89,26 @@ func (e *TemplateExpr) StartRange() hcl.Range {
         return e.Parts[0].StartRange()
 }
 
+// IsStringLiteral returns true if and only if the template consists only of
+// single string literal, as would be created for a simple quoted string like
+// "foo".
+//
+// If this function returns true, then calling Value on the same expression
+// with a nil EvalContext will return the literal value.
+//
+// Note that "${"foo"}", "${1}", etc aren't considered literal values for the
+// purposes of this method, because the intent of this method is to identify
+// situations where the user seems to be explicitly intending literal string
+// interpretation, not situations that result in literals as a technicality
+// of the template expression unwrapping behavior.
+func (e *TemplateExpr) IsStringLiteral() bool {
+        if len(e.Parts) != 1 {
+                return false
+        }
+        _, ok := e.Parts[0].(*LiteralValueExpr)
+        return ok
+}
+
 // TemplateJoinExpr is used to convert tuples of strings produced by template
 // constructs (i.e. for loops) into flat strings, by converting the values
 // tos strings and joining them. This AST node is not used directly; it's