mirror of
https://github.com/ent/ent.git
synced 2026-05-22 09:31:45 +03:00
83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
// Copyright 2019-present Facebook Inc. All rights reserved.
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// This source code is licensed under the Apache 2.0 license found
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// in the LICENSE file in the root directory of this source tree.
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// A codegen cmd for generating builder types from template.
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package main
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import (
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"bytes"
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"go/format"
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"io/ioutil"
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"log"
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"strings"
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"text/template"
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"github.com/facebook/ent/schema/field"
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)
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func main() {
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buf, err := ioutil.ReadFile("internal/types.tmpl")
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if err != nil {
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log.Fatal("reading template file:", err)
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}
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tmpl := template.Must(template.New("types").
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Funcs(template.FuncMap{
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"ops": ops,
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"title": strings.Title,
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"ident": ident,
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}).
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Parse(string(buf)))
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b := &bytes.Buffer{}
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if err := tmpl.Execute(b, struct {
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Types []field.Type
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}{
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Types: []field.Type{
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field.TypeBool,
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field.TypeBytes,
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field.TypeTime,
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field.TypeUint,
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field.TypeUint8,
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field.TypeUint16,
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field.TypeUint32,
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field.TypeUint64,
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field.TypeInt,
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field.TypeInt8,
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field.TypeInt16,
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field.TypeInt32,
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field.TypeInt64,
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field.TypeFloat32,
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field.TypeFloat64,
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field.TypeString,
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},
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}); err != nil {
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log.Fatal("executing template:", err)
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}
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if buf, err = format.Source(b.Bytes()); err != nil {
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log.Fatal("formatting output:", err)
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}
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if err := ioutil.WriteFile("types.go", buf, 0644); err != nil {
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log.Fatal("writing go file:", err)
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}
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}
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func ops(t field.Type) []string {
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switch t {
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case field.TypeBool, field.TypeBytes:
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return []string{"EQ", "NEQ"}
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default:
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return []string{"EQ", "NEQ", "LT", "LTE", "GT", "GTE"}
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}
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}
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func ident(t field.Type) string {
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switch t {
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case field.TypeTime:
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return "time"
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case field.TypeBytes:
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return "bytes"
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default:
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return t.String()
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}
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}
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