Files
avo/internal/gen/gen.go
2019-01-05 14:12:50 -08:00

36 lines
778 B
Go

package gen
import (
"go/format"
"github.com/mmcloughlin/avo/internal/inst"
"github.com/mmcloughlin/avo/printer"
)
// Interface of an instruction code generator.
type Interface interface {
Generate([]inst.Instruction) ([]byte, error)
}
// Func adapts a function to Interface.
type Func func([]inst.Instruction) ([]byte, error)
// Generate calls f.
func (f Func) Generate(is []inst.Instruction) ([]byte, error) {
return f(is)
}
// Builder constructs a code generator.
type Builder func(printer.Config) Interface
// GoFmt formats Go code produced from the given generator.
func GoFmt(i Interface) Interface {
return Func(func(is []inst.Instruction) ([]byte, error) {
b, err := i.Generate(is)
if err != nil {
return nil, err
}
return format.Source(b)
})
}