js 目标增加文件读写内部函数(调试用)

internal/app/apprun/apprun.go

@@ -30,6 +30,11 @@ var CmdRun = &cli.Command{
 			Usage: "set http address",
 			Value: ":8000",
 		},
+		&cli.BoolFlag{
+			Name:  "console",
+			Usage: "set console mode",
+			Value: false,
+		},
 	},
 	Action: CmdRunAction,
 }
@@ -49,7 +54,7 @@ func CmdRunAction(c *cli.Context) error {
 	}
 
 	// Web 模式启动服务器
-	if opt.TargetOS == config.WaOS_js && appbase.IsNativeDir(input) {
+	if !c.Bool("console") && opt.TargetOS == config.WaOS_js && appbase.IsNativeDir(input) {
 		var addr = c.String("http")
 		if strings.HasPrefix(addr, ":") {
 			addr = "localhost" + addr

internal/wazero/js.go

@@ -5,6 +5,7 @@ package wazero
 import (
 	"context"
 	"fmt"
+	"os"
 
 	"wa-lang.org/wazero"
 	"wa-lang.org/wazero/api"
@@ -108,6 +109,44 @@ func JsInstantiate(ctx context.Context, rt wazero.Runtime) (api.Closer, error) {
 		WithParameterNames("ptr", "len").
 		Export("print_str").
 
+		// 非标准, 仅用于辅助测试
+		// func read_file_len(name_ptr, name_len) => i32
+		NewFunctionBuilder().
+		WithFunc(func(ctx context.Context, m api.Module, name_ptr, name_len uint32) uint32 {
+			name_bytes, _ := m.Memory().Read(ctx, name_ptr, name_len)
+			if fi, err := os.Lstat(string(name_bytes)); err == nil {
+				return uint32(fi.Size())
+			}
+			return 0
+		}).
+		WithParameterNames("name_ptr", "name_len").
+		Export("read_file_len").
+
+		// 非标准, 仅用于辅助测试
+		// func read_file_data(name_ptr, name_len, data_ptr)
+		NewFunctionBuilder().
+		WithFunc(func(ctx context.Context, m api.Module, name_ptr, name_len, data_ptr, data_len uint32) {
+			name_bytes, _ := m.Memory().Read(ctx, name_ptr, name_len)
+			data, _ := os.ReadFile(string(name_bytes))
+			if len(data) > int(data_len) {
+				data = data[:data_len]
+			}
+			m.Memory().Write(ctx, data_ptr, data)
+		}).
+		WithParameterNames("name_ptr", "name_len", "data_ptr", "data_len").
+		Export("read_file_data").
+
+		// 非标准, 仅用于辅助测试
+		// func write_file(name_ptr, name_len, data_ptr, data_len: i32)
+		NewFunctionBuilder().
+		WithFunc(func(ctx context.Context, m api.Module, name_ptr, name_len, data_ptr, data_len uint32) {
+			name_bytes, _ := m.Memory().Read(ctx, name_ptr, name_len)
+			data_bytes, _ := m.Memory().Read(ctx, data_ptr, data_len)
+			os.WriteFile(string(name_bytes), data_bytes, 0666)
+		}).
+		WithParameterNames("name_ptr", "name_len", "data_ptr", "data_len").
+		Export("write_file").
+
 		// func proc_exit(code: i32)
 		NewFunctionBuilder().
 		WithFunc(func(ctx context.Context, m api.Module, exitCode uint32) {

waroot/src/debug/debug.wa

@@ -0,0 +1,11 @@
+// 版权 @2023 凹语言 作者。保留所有权利。
+
+#wa:build !js
+
+func ReadFile(name: string) => []byte {
+	panic("unsupport")
+}
+
+func WriteFile(name: string, data: []byte) {
+	panic("unsupport")
+}

waroot/src/debug/debug_js.wa

@@ -0,0 +1,32 @@
+// 版权 @2023 凹语言 作者。保留所有权利。
+
+#wa:linkname $wa.runtime.slice_to_ptr
+func slice_to_ptr(t: []byte) => i32
+
+#wa:linkname $wa.runtime.string_to_ptr
+func string_to_ptr(s: string) => i32
+
+#wa:import syscall_js read_file_len
+func read_file_len(name_ptr, name_len: i32) => i32
+
+#wa:import syscall_js read_file_data
+func read_file_data(name_ptr, name_len, data_ptr: i32)
+
+#wa:import syscall_js write_file
+func write_file(name_ptr, name_len, data_ptr, data_len: i32)
+
+func ReadFile(name: string) => []byte {
+	size := read_file_len(string_to_ptr(name), len(name))
+	data := make([]byte, size)
+	read_file_data(
+		string_to_ptr(name), len(name),
+		slice_to_ptr(data),
+	)
+}
+
+func WriteFile(name: string, data: []byte) {
+	write_file(
+		string_to_ptr(name), len(name),
+		slice_to_ptr(data), len(data),
+	)
+}

waroot/waroot.go

@@ -113,7 +113,7 @@ func GetStdPkgList() []string {
 func GetStdTestPkgList() []string {
 	var ss []string
 	for _, s := range stdPkgs {
-		if s == "unsafe" {
+		if s == "unsafe" || s == "debug" {
 			continue
 		}
 		if strings.HasPrefix(s, "syscall") {
@@ -134,6 +134,7 @@ var stdPkgs = []string{
 	"encoding/base64", // API 完整
 	"encoding/binary", // API 部分
 	"encoding/hex",    // API 完整
+	"debug",           // ?
 	"fmt",             // ?
 	"hash",            // API 完整
 	"hash/crc32",      // API 完整