initial commit

main.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/dop251/goja"
+	"github.com/evanw/esbuild/pkg/api"
+)
+
+func executeTypeScript(filePath string, stdout, stderr io.Writer) error {
+	tsContent, err := os.ReadFile(filePath)
+	if err != nil {
+		_, _ = fmt.Fprintf(stderr, "Error reading file: %v\n", err)
+		return err
+	}
+
+	result := api.Transform(string(tsContent), api.TransformOptions{
+		Loader:      api.LoaderTS,
+		Target:      api.ES2020,
+		Format:      api.FormatIIFE,
+		Sourcemap:   api.SourceMapNone,
+		TreeShaking: api.TreeShakingFalse,
+	})
+
+	if len(result.Errors) > 0 {
+		_, _ = fmt.Fprintf(stderr, "Transpilation errors:\n")
+		for _, err := range result.Errors {
+			_, _ = fmt.Fprintf(stderr, "  %s\n", err.Text)
+		}
+		return fmt.Errorf("transpilation failed")
+	}
+
+	vm := goja.New()
+
+	console := vm.NewObject()
+	_ = vm.Set("console", console)
+
+	_ = console.Set("log", func(call goja.FunctionCall) goja.Value {
+		args := call.Arguments
+		for i, arg := range args {
+			if i > 0 {
+				_, _ = fmt.Fprint(stdout, " ")
+			}
+			_, _ = fmt.Fprint(stdout, arg.String())
+		}
+		_, _ = fmt.Fprintln(stdout)
+		return goja.Undefined()
+	})
+
+	_, err = vm.RunString(string(result.Code))
+	if err != nil {
+		_, _ = fmt.Fprintf(stderr, "Execution error: %v\n", err)
+		return err
+	}
+
+	return nil
+}
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Fprintln(os.Stderr, "Usage: program <typescript-file>")
+		os.Exit(1)
+	}
+
+	filePath := os.Args[1]
+
+	if err := executeTypeScript(filePath, os.Stdout, os.Stderr); err != nil {
+		os.Exit(1)
+	}
+}