vendor tsgo

tools/tsgo/internal/execute/incremental/host.go

@@ -0,0 +1,45 @@
+package incremental
+
+import (
+	"time"
+
+	"github.com/microsoft/typescript-go/internal/compiler"
+	"github.com/microsoft/typescript-go/internal/vfs"
+)
+
+type Host interface {
+	FS() vfs.FS
+	GetMTime(fileName string) time.Time
+	SetMTime(fileName string, mTime time.Time) error
+}
+
+type host struct {
+	host compiler.CompilerHost
+}
+
+var _ Host = (*host)(nil)
+
+func (h *host) FS() vfs.FS {
+	return h.host.FS()
+}
+
+func (h *host) GetMTime(fileName string) time.Time {
+	return GetMTime(h.host, fileName)
+}
+
+func (h *host) SetMTime(fileName string, mTime time.Time) error {
+	return h.host.FS().Chtimes(fileName, time.Time{}, mTime)
+}
+
+func CreateHost(compilerHost compiler.CompilerHost) Host {
+	return &host{host: compilerHost}
+}
+
+func GetMTime(host compiler.CompilerHost, fileName string) time.Time {
+	stat := host.FS().Stat(fileName)
+	var mTime time.Time
+	if stat != nil {
+		mTime = stat.ModTime()
+	}
+	return mTime
+}