47 lines
844 B
Go
47 lines
844 B
Go
package gen
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import (
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"bytes"
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"fmt"
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"go/format"
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"github.com/mmcloughlin/avo/internal/inst"
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)
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type Interface interface {
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Generate([]*inst.Instruction) ([]byte, error)
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}
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type Func func([]*inst.Instruction) ([]byte, error)
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func (f Func) Generate(is []*inst.Instruction) ([]byte, error) {
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return f(is)
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}
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// GoFmt formats Go code produced from the given generator.
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func GoFmt(i Interface) Interface {
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return Func(func(is []*inst.Instruction) ([]byte, error) {
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b, err := i.Generate(is)
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if err != nil {
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return nil, err
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}
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return format.Source(b)
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})
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}
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type printer struct {
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buf bytes.Buffer
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err error
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}
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func (p *printer) Printf(format string, args ...interface{}) {
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if p.err != nil {
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return
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}
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_, p.err = fmt.Fprintf(&p.buf, format, args...)
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}
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func (p *printer) Result() ([]byte, error) {
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return p.buf.Bytes(), p.err
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}
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