From 377e20b7b8ba4d5c38400fa4af355eebc2d68c83 Mon Sep 17 00:00:00 2001
From: Martin Atkins <mart@degeneration.co.uk>
Date: Mon, 15 May 2017 08:34:35 -0700
Subject: [PATCH] json: AST node types

---
 zcl/json/ast.go | 105 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 zcl/json/ast.go

diff --git a/zcl/json/ast.go b/zcl/json/ast.go
new file mode 100644
index 0000000..88638ea
--- /dev/null
+++ b/zcl/json/ast.go
@@ -0,0 +1,105 @@
+package json
+
+import (
+	"math/big"
+
+	"github.com/apparentlymart/go-zcl/zcl"
+)
+
+type node interface {
+	Range() zcl.Range
+	StartRange() zcl.Range
+}
+
+type objectVal struct {
+	Attrs     map[string]*objectAttr
+	SrcRange  zcl.Range // range of the entire object, brace-to-brace
+	OpenRange zcl.Range // range of the opening brace
+}
+
+func (n *objectVal) Range() zcl.Range {
+	return n.SrcRange
+}
+
+func (n *objectVal) StartRange() zcl.Range {
+	return n.OpenRange
+}
+
+type objectAttr struct {
+	Name      string
+	Value     node
+	NameRange zcl.Range // range of the name string
+}
+
+func (n *objectAttr) Range() zcl.Range {
+	return n.NameRange
+}
+
+func (n *objectAttr) StartRange() zcl.Range {
+	return n.NameRange
+}
+
+type arrayVal struct {
+	Values    []node
+	SrcRange  zcl.Range // range of the entire object, bracket-to-bracket
+	OpenRange zcl.Range // range of the opening bracket
+}
+
+func (n *arrayVal) Range() zcl.Range {
+	return n.SrcRange
+}
+
+func (n *arrayVal) StartRange() zcl.Range {
+	return n.OpenRange
+}
+
+type booleanVal struct {
+	Value    bool
+	SrcRange zcl.Range
+}
+
+func (n *booleanVal) Range() zcl.Range {
+	return n.SrcRange
+}
+
+func (n *booleanVal) StartRange() zcl.Range {
+	return n.SrcRange
+}
+
+type numberVal struct {
+	Value    *big.Float
+	SrcRange zcl.Range
+}
+
+func (n *numberVal) Range() zcl.Range {
+	return n.SrcRange
+}
+
+func (n *numberVal) StartRange() zcl.Range {
+	return n.SrcRange
+}
+
+type stringVal struct {
+	Value    string
+	SrcRange zcl.Range
+}
+
+func (n *stringVal) Range() zcl.Range {
+	return n.SrcRange
+}
+
+func (n *stringVal) StartRange() zcl.Range {
+	return n.SrcRange
+}
+
+type nullVal struct {
+	SrcRange zcl.Range
+}
+
+func (n *nullVal) Range() zcl.Range {
+	return n.SrcRange
+}
+
+func (n *nullVal) StartRange() zcl.Range {
+	return n.SrcRange
+}