// Copyright 2015 The go-python Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package bind

import (

"bytes"

"fmt"

"go/token"

"io"

"os"

)

// ErrorList is a list of errors

type ErrorList []error

func (list ErrorList) Error() string {

buf := new(bytes.Buffer)

for i, err := range list {

if i > 0 {

buf.WriteRune('\n')

}

io.WriteString(buf, err.Error())

}

return buf.String()

}

// GenCPython generates a (C)Python package from a Go package

func GenCPython(w io.Writer, fset *token.FileSet, pkg *Package, lang int) error {

gen := &cpyGen{

decl: &printer{buf: new(bytes.Buffer), indentEach: []byte("\t")},

impl: &printer{buf: new(bytes.Buffer), indentEach: []byte("\t")},

fset: fset,

pkg: pkg,

lang: lang,

}

err := gen.gen()

if err != nil {

return err

}

_, err = io.Copy(w, gen.decl)

if err != nil {

return err

}

_, err = io.Copy(w, gen.impl)

if err != nil {

return err

}

return err

}

// GenGo generates a cgo package from a Go package

func GenGo(w io.Writer, fset *token.FileSet, pkg *Package, lang int) error {

buf := new(bytes.Buffer)

gen := &goGen{

printer: &printer{buf: buf, indentEach: []byte("\t")},

fset: fset,

pkg: pkg,

lang: lang,

}

err := gen.gen()

if err != nil {

return err

}

_, err = io.Copy(w, gen.buf)

return err

}

const (

doDebug = true

)

func debugf(format string, args ...interface{}) (int, error) {

if doDebug {

return fmt.Fprintf(os.Stderr, format, args...)

}

return 0, nil

}