mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 13:22:19 +02:00
110 lines
2.2 KiB
Go
110 lines
2.2 KiB
Go
// Copyright 2018 The Ebiten Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build ignore
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package main
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import (
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"fmt"
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"go/ast"
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"go/format"
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"go/parser"
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"go/token"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"golang.org/x/tools/go/ast/astutil"
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)
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func run() error {
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dir := filepath.Join(runtime.GOROOT(), "src", "image", "png")
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files, err := ioutil.ReadDir(dir)
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if err != nil {
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return err
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}
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for _, f := range files {
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if f.IsDir() {
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continue
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}
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if strings.HasSuffix(f.Name(), "_test.go") {
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continue
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}
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in, err := os.Open(filepath.Join(dir, f.Name()))
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if err != nil {
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return err
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}
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defer in.Close()
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out, err := os.Create("stdlib" + f.Name())
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if err != nil {
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return err
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}
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defer out.Close()
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// TODO: Remove call of RegisterDecoder
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data, err := ioutil.ReadAll(in)
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if err != nil {
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return err
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}
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fset := token.NewFileSet()
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tree, err := parser.ParseFile(fset, "", string(data), parser.ParseComments)
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if err != nil {
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return err
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}
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astutil.Apply(tree, func(c *astutil.Cursor) bool {
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stmt, ok := c.Node().(*ast.ExprStmt)
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if !ok {
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return true
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}
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call, ok := stmt.X.(*ast.CallExpr)
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if !ok {
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return true
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}
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s, ok := call.Fun.(*ast.SelectorExpr)
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if !ok {
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return true
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}
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receiver, ok := s.X.(*ast.Ident)
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if !ok {
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return true
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}
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// Delete registering PNG format.
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if receiver.Name == "image" && s.Sel.Name == "RegisterFormat" {
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c.Delete()
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}
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return true
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}, nil)
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fmt.Fprintln(out, "// Code generated by gen.go. DO NOT EDIT.")
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fmt.Fprintln(out)
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format.Node(out, fset, tree)
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}
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return nil
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}
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func main() {
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if err := run(); err != nil {
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panic(err)
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}
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}
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