增加 os.Environ 函数

internal/app/apputil/wabt_wat2wasm.go

@@ -53,6 +53,17 @@ func RunWasm(cfg *config.Config, filename string, wasmArgs ...string) (stdoutStd
 		WithSysWalltime().
 		WithArgs(append([]string{wasmExe}, wasmArgs...)...)
 
+	for _, s := range os.Environ() {
+		var key, value string
+		if kv := strings.Split(s, "="); len(kv) >= 2 {
+			key = kv[0]
+			value = kv[1]
+		} else if len(kv) >= 1 {
+			key = kv[0]
+		}
+		conf = conf.WithEnv(key, value)
+	}
+
 	ctx := context.Background()
 	r := wazero.NewRuntime(ctx)
 	defer r.Close(ctx)

internal/waroot/_waroot/src/os/os.wa

@@ -2,12 +2,22 @@
 
 var Args []string
 
+var environs []string
+
 #wa:linkname runtime.os_get_args
 func os_get_args() => []string
 
+#wa:linkname runtime.os_get_environs
+func os_get_environs() => []string
+
 #wa:linkname $runtime.procExit
 func Exit(code: i32)
 
 func init {
 	Args = os_get_args()
+	environs = os_get_environs()
+}
+
+func Environ() []string {
+	return environs
 }

internal/waroot/_waroot/src/runtime/env.wa

+// 版权 @2023 凹语言 作者。保留所有权利。
+
+func os_get_environs() => []string {
+	var environc: i32
+	var environv_buf_size: i32
+
+	environSizesGet(refToPtr_i32(&environc), refToPtr_i32(&environv_buf_size))
+	if environc == 0 {
+		return nil
+	}
+
+	var environvBytes = make([]byte, environc*4)
+	var environvU32 = make([]u32, environc)
+
+	var environv_buf = make([]byte, environv_buf_size)
+	var environv_buf_ptr: i32 = refToPtr_byteSlice(environv_buf)
+
+	environGet(refToPtr_byteSlice(environvBytes), environv_buf_ptr)
+
+	for i := 0; i < len(environvBytes); i += 4 {
+		a0 := u32(environvBytes[i+0]);
+		a1 := u32(environvBytes[i+1]);
+		a2 := u32(environvBytes[i+2]);
+		a3 := u32(environvBytes[i+3]);
+		environvU32[i/4] = a0 + a1*256 + a2*256*256 + a3*256*256*256
+	}
+
+	var environs = make([]string, environc)
+	for i := 0; i < int(environc); i++ {
+		var off = i32(environvU32[i]) - environv_buf_ptr
+		environs[i] = getCStr(environv_buf, off)
+	}
+
+	return environs
+}

internal/waroot/_waroot/src/runtime/runtime_arduino.wa

@@ -14,6 +14,17 @@ func argsGet(result_argv: i32, result_argv_buf: i32) => (errno: i32) {
 	return
 }
 
+#wa:linkname $runtime.environSizesGet
+func environSizesGet(result_environc: i32, result_environv_len: i32) => (errno: i32) {
+	return
+}
+
+#wa:linkname $runtime.environGet
+func environGet(result_environv: i32, result_environv_buf: i32) => (errno: i32) {
+	return
+}
+
+
 #wa:linkname $runtime.fdWrite
 func fdWrite(fd: i32, io: i32, iovs_len: i32, nwritten: i32) => (written: i32) {
 	return

internal/waroot/_waroot/src/runtime/runtime_chrome.wa

@@ -12,6 +12,16 @@ func argsGet(result_argv: i32, result_argv_buf: i32) => (errno: i32) {
 	return
 }
 
+#wa:linkname $runtime.environSizesGet
+func environSizesGet(result_environc: i32, result_environv_len: i32) => (errno: i32) {
+	return
+}
+
+#wa:linkname $runtime.environGet
+func environGet(result_environv: i32, result_environv_buf: i32) => (errno: i32) {
+	return
+}
+
 #wa:linkname $runtime.fdWrite
 func fdWrite(fd: i32, io: i32, iovs_len: i32, nwritten: i32) => (written: i32) {
 	return

internal/waroot/_waroot/src/runtime/runtime_wasi.wa

@@ -10,6 +10,14 @@ func argsSizesGet(result_argc: i32, result_argv_len: i32) => (errno: i32)
 #wa:linkname $runtime.argsGet
 func argsGet(result_argv: i32, result_argv_buf: i32) => (errno: i32)
 
+#wa:import wasi_snapshot_preview1 environ_sizes_get
+#wa:linkname $runtime.environSizesGet
+func environSizesGet(result_environc: i32, result_environv_len: i32) => (errno: i32)
+
+#wa:import wasi_snapshot_preview1 environ_get
+#wa:linkname $runtime.environGet
+func environGet(result_environv: i32, result_environv_buf: i32) => (errno: i32)
+
 #wa:import wasi_snapshot_preview1 fd_write
 #wa:linkname $runtime.fdWrite
 func fdWrite(fd: i32, io: i32, iovs_len: i32, nwritten: i32) => (errno: i32)