ebiten/internal/graphicsdriver/opengl/gl/gen.go

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// Copyright 2023 The Ebitengine Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build ignore
package main
import (
"bufio"
"fmt"
"os"
"reflect"
"strings"
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl/gl"
)
func main() {
if err := run(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func run() error {
f, err := os.Create("debug.go")
if err != nil {
return err
}
defer f.Close()
out := bufio.NewWriter(f)
if _, err := fmt.Fprintf(out, `// Copyright 2023 The Ebitengine Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by genkeys.go using 'go generate'. DO NOT EDIT.
%s
package gl
import (
"fmt"
"os"
)
type DebugContext struct {
Context Context
}
var _ Context = (*DebugContext)(nil)
`, "//go:build !playstation5"); err != nil {
return err
}
t := reflect.TypeOf((*gl.Context)(nil)).Elem()
for i := 0; i < t.NumMethod(); i++ {
m := t.Method(i)
name := m.Name
var argNames []string
var argNamesAndTypes []string
for j := 0; j < m.Type.NumIn(); j++ {
n := fmt.Sprintf("arg%d", j)
argNames = append(argNames, n)
argNamesAndTypes = append(argNamesAndTypes, n+" "+typeName(m.Type.In(j)))
}
var outTypes []string
var outNames []string
for j := 0; j < m.Type.NumOut(); j++ {
outTypes = append(outTypes, typeName(m.Type.Out(j)))
outNames = append(outNames, fmt.Sprintf("out%d", j))
}
if _, err := fmt.Fprintf(out, "\nfunc (d *DebugContext) %s(%s) (%s) {\n", name, strings.Join(argNamesAndTypes, ", "), strings.Join(outTypes, ",")); err != nil {
return err
}
if len(outTypes) > 0 {
if _, err := fmt.Fprintf(out, "\t%s := ", strings.Join(outNames, ", ")); err != nil {
return err
}
} else {
if _, err := fmt.Fprintf(out, "\t"); err != nil {
return err
}
}
if _, err := fmt.Fprintf(out, "d.Context.%s(%s)\n", name, strings.Join(argNames, ", ")); err != nil {
return err
}
// Print logs.
if name != "LoadFunctions" && name != "IsES" {
if _, err := fmt.Fprintf(out, "\tfmt.Fprintln(os.Stderr, %q)\n", name); err != nil {
return err
}
}
// Check errors.
if name != "LoadFunctions" && name != "IsES" && name != "GetError" {
if _, err := fmt.Fprintf(out, ` if e := d.Context.GetError(); e != NO_ERROR {
panic(fmt.Sprintf("gl: GetError() returned %%d at %s", e))
}
`, name); err != nil {
return err
}
}
if len(outTypes) > 0 {
if _, err := fmt.Fprintf(out, "\treturn %s\n", strings.Join(outNames, ", ")); err != nil {
return err
}
}
if _, err := fmt.Fprintf(out, "}\n"); err != nil {
return err
}
}
if err := out.Flush(); err != nil {
return err
}
return nil
}
func typeName(t reflect.Type) string {
if t.Kind() == reflect.Slice {
return "[]" + typeName(t.Elem())
}
return t.Name()
}