针对开发者添加 wat2c 测试子命令入口

Author: chai2010

internal/app/appwasm2wat/appwasm2wat.go

@@ -0,0 +1,74 @@
+// 版权 @2023 凹语言 作者。保留所有权利。
+
+package appwat2c
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"wa-lang.org/wa/internal/3rdparty/cli"
+	"wa-lang.org/wa/internal/wat/watutil"
+)
+
+var CmdWat2c = &cli.Command{
+	Hidden:    true,
+	Name:      "wat2c",
+	Usage:     "convert a WebAssembly text file to a C source and header",
+	ArgsUsage: "<file.wat>",
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:    "output",
+			Aliases: []string{"o"},
+			Usage:   "set output file",
+		},
+	},
+	Action: func(c *cli.Context) error {
+		if c.NArg() == 0 {
+			fmt.Fprintf(os.Stderr, "no input file")
+			os.Exit(1)
+		}
+
+		infile := c.Args().First()
+		outfile := c.String("output")
+		if outfile == "" {
+			outfile = infile
+			if n1, n2 := len(outfile), len(".wat"); n1 > n2 {
+				if s := outfile[n1-n2:]; strings.EqualFold(s, ".wat") {
+					outfile = outfile[:n1-n2]
+				}
+			}
+			outfile += ".c"
+		}
+		if !strings.HasSuffix(outfile, ".c") {
+			outfile += ".c"
+		}
+
+		source, err := os.ReadFile(infile)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		code, header, err := watutil.Wat2C(infile, source)
+		if err != nil {
+			os.WriteFile(outfile, code, 0666)
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		err = os.WriteFile(outfile, code, 0666)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		err = os.WriteFile(outfile+".h", header, 0666)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		return nil
+	},
+}

internal/app/appwat2c/appwat2c.go

@@ -0,0 +1,10 @@
+// 版权 @2024 凹语言 作者。保留所有权利。
+
+package watutil
+
+import "fmt"
+
+func Wat2C(filename string, source []byte) (code, header []byte, err error) {
+	err = fmt.Errorf("wat2c: TODO")
+	return
+}

internal/wat/watutil/wat2c.go

@@ -29,7 +29,7 @@ import (
 	"wa-lang.org/wa/internal/app/apprun"
 	"wa-lang.org/wa/internal/app/appssa"
 	"wa-lang.org/wa/internal/app/apptest"
-	"wa-lang.org/wa/internal/app/appwasm2wat"
+	"wa-lang.org/wa/internal/app/appwat2c"
 	"wa-lang.org/wa/internal/app/appwat2wasm"
 	"wa-lang.org/wa/internal/app/appwatstrip"
 	"wa-lang.org/wa/internal/app/appyacc"
@@ -105,8 +105,8 @@ func main() {
 		appast.CmdAst,
 		appssa.CmdSsa,
 		appwat2wasm.CmdWat2wasm,
-		appwasm2wat.CmdWasm2wat,
 		appwatstrip.CmdWatStrip,
+		appwat2c.CmdWat2c,
 
 		// 待完善的子命令(隐藏)
 		appgo2wa.CmdGo2wa,

main.go

@@ -2,6 +2,7 @@
 
 - (dev)
   - 完善 `wa lsp` 子命令 (TODO)
+  - 支持 `wat2c` 命令(TODO)
 - v0.17.0 (2024-10-??)
   - 恢复 Arduino Nano 33 支持
   - 预定义常量统一用大写字母, 并增加 `__COLUMN__` 常量