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gen.go
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gen.go
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package protogocmd
import (
"path/filepath"
"github.com/alecthomas/kong"
"github.com/protogodev/protogo/generator"
"github.com/protogodev/protogo/parser"
"github.com/protogodev/protogo/parser/ifacetool"
)
type Generator interface {
// PkgName returns the destination package name to which the generated file will belong.
//
// Note that if it's different from the source package name (to which the interface belong),
// all type names used in the interface will be full-qualified.
PkgName() string
Generate(data *ifacetool.Data) (*generator.File, error)
}
type Gen struct {
Generator
SrcFilename string `arg:"" name:"source-file" help:"source file"`
InterfaceName string `arg:"" name:"interface-name" help:"interface name"`
}
func NewGen(generator Generator) *Gen {
return &Gen{Generator: generator}
}
func (g *Gen) Run(ctx *kong.Context) error {
srcFilename, err := filepath.Abs(g.SrcFilename)
if err != nil {
return err
}
pkgName := g.Generator.PkgName()
data, err := parser.ParseInterface(pkgName, srcFilename, g.InterfaceName)
if err != nil {
return err
}
file, err := g.Generator.Generate(data)
if err != nil {
return err
}
return file.Write()
}