func gen(t *testing.T, code string, types string) string {
file := getFile(t, code)
c, err := concrete.New(types)
assert.NoError(t, err)
gen := New(file, c)
assert.NoError(t, err)
var buf bytes.Buffer
err = gen.Do("", &buf)
assert.NoError(t, err)
return buf.String()
}
func main() {
tem := flag.String("tem", "", "name of the template go file")
out := flag.String("out", "", "name of the new source file")
pac := flag.String("pac", "", "package name in the created file")
gen := flag.String("gen", "", "concrete types e.g string,int;string,double64")
imp := flag.Bool("imp", true, "run go imports")
flag.Parse()
// read the source file
fset := token.NewFileSet()
ast, err := parser.ParseFile(fset, *tem, nil, parser.ParseComments)
if err != nil {
fmt.Println("reading source file: ", err)
return
}
// prepeare the concrete types
c, err := concrete.New(*gen)
if err != nil {
fmt.Println("processing concrete types: ", err)
return
}
// create output name
outName, err := names.CreateOutName(*out, *tem, message)
if err != nil {
fmt.Println(err)
return
}
packageName, err := names.GetPackageName(*pac, outName)
if err != nil {
fmt.Println(err)
return
}
// generify the source file
gener := generify.New(ast, c)
var buffer = new(bytes.Buffer)
buffer.WriteString(message)
err = gener.Do(packageName, buffer)
if err != nil {
fmt.Println(err)
return
}
var output []byte
if *imp {
// run go imports
output, err = imports.Process("", buffer.Bytes(), nil)
if err != nil {
fmt.Println("go imports has an error, try -imp=false: ", err)
return
}
} else {
output = buffer.Bytes()
}
// write the output
file, err := os.Create(outName)
if err != nil {
fmt.Println("error creating output file: ", err)
return
}
defer file.Close()
_, err = file.Write(output)
if err != nil {
fmt.Println("error writing output file: ", err)
return
}
fmt.Println("generated ", outName)
}