wip

internal/gen/gen.go

@@ -0,0 +1,34 @@
+package gen
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/mmcloughlin/avo/internal/inst"
+)
+
+type Interface interface {
+	Generate(io.Writer, []*inst.Instruction) error
+}
+
+type Func func(io.Writer, []*inst.Instruction) error
+
+func (f Func) Generate(w io.Writer, is []*inst.Instruction) error {
+	return f(w, is)
+}
+
+type printer struct {
+	w   io.Writer
+	err error
+}
+
+func (p *printer) printf(format string, args ...interface{}) {
+	if p.err != nil {
+		return
+	}
+	_, p.err = fmt.Fprintf(p.w, format, args...)
+}
+
+func (p *printer) Err() error {
+	return p.err
+}