hcl: use stringer to generate string values for ValueType

Makefile

@@ -11,4 +11,7 @@ test: generate
 generate:
 	go generate ./...
 
-.PHONY: default generate test
+updatedeps:
+	go get -u golang.org/x/tools/cmd/stringer
+
+.PHONY: default generate test updatedeps

hcl/object.go

@@ -5,6 +5,8 @@ import (
 	"strings"
 )
 
+//go:generate stringer -type=ValueType
+
 // ValueType is an enum represnting the type of a value in
 // a LiteralNode.
 type ValueType byte

hcl/valuetype_string.go

@@ -0,0 +1,16 @@
+// generated by stringer -type=ValueType; DO NOT EDIT
+
+package hcl
+
+import "fmt"
+
+const _ValueType_name = "ValueTypeUnknownValueTypeFloatValueTypeIntValueTypeStringValueTypeBoolValueTypeNilValueTypeListValueTypeObject"
+
+var _ValueType_index = [...]uint8{0, 16, 30, 42, 57, 70, 82, 95, 110}
+
+func (i ValueType) String() string {
+	if i+1 >= ValueType(len(_ValueType_index)) {
+		return fmt.Sprintf("ValueType(%d)", i)
+	}
+	return _ValueType_name[_ValueType_index[i]:_ValueType_index[i+1]]
+}