github worflow & 去除 goto

.github/workflows/go-releaser.yml

@@ -0,0 +1,24 @@
+name: goreleaser
+
+on:
+  push:
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.19
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yml

@@ -0,0 +1,33 @@
+# This is an example .goreleaser.yml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+before:
+  hooks:
+    # You may remove this if you don't use go modules.
+    - go mod download
+    # you may remove this if you don't need go generate
+    - go generate ./...
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+    goarch:
+      - amd64
+      - arm
+      - arm64
+    goarm:
+      - 6
+      - 7
+
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'

README.md

@@ -54,14 +54,15 @@ if http.listen(':8080', handle) != nil {
 ## TODO
 - 语法
   - [x] 注释`//` `/* */`
-  - [x] 去除`repeat` `until`
+  - [x] 去除`repeat` `until` `goto`
   - [x] Raw String, `\``
   - [x] 支持任意对象 Concat
+  - Table
+    - [x] key为StringExp，而不是NameExp
+    - [x] `=` -> `:`, eg: `{a = 'a'}` -> `{a: 'a'}`
+  - [ ] 改变 `metatable` 设置方式
 - 编译器
   - [x] 自动添加`range` ( `paris` )
-- Table
-  - [x] key为StringExp，而不是NameExp
-  - [x] `=` -> `:`, eg: `{a = 'a'}` -> `{a: 'a'}`
 - CLI
-  - [x] 利用HASH，如果文件内容没变化，就不需要重新编译
-  - [ ] 支持传入参数
+  - [x] 利用HASH，文件无变化不编译
+  - [x] 支持传入参数

compiler/codegen/cg_stat.go

@@ -22,8 +22,6 @@ func cgStat(fi *funcInfo, node Stat) {
 		cgLocalVarDeclStat(fi, stat)
 	case *LocalFuncDefStat:
 		cgLocalFuncDefStat(fi, stat)
-	case *LabelStat, *GotoStat:
-		panic("label and goto statements are not supported!")
 	}
 }
 

compiler/lexer/lexer.go

@@ -121,13 +121,8 @@ func (self *Lexer) NextToken() (line, kind int, token string) {
 		self.next(1)
 		return self.line, TOKEN_OP_LEN, "#"
 	case ':':
-		if self.test("::") {
-			self.next(2)
-			return self.line, TOKEN_SEP_LABEL, "::"
-		} else {
-			self.next(1)
-			return self.line, TOKEN_SEP_COLON, ":"
-		}
+		self.next(1)
+		return self.line, TOKEN_SEP_COLON, ":"
 	case '/':
 		self.next(1)
 		return self.line, TOKEN_OP_DIV, "/"

compiler/lexer/token.go

@@ -8,7 +8,6 @@ const (
 	TOKEN_SEP_COMMA                    // ,
 	TOKEN_SEP_DOT                      // .
 	TOKEN_SEP_COLON                    // :
-	TOKEN_SEP_LABEL                    // ::
 	TOKEN_SEP_LPAREN                   // (
 	TOKEN_SEP_RPAREN                   // )
 	TOKEN_SEP_LBRACK                   // [
@@ -45,7 +44,6 @@ const (
 	TOKEN_KW_FALSE                     // false
 	TOKEN_KW_FOR                       // for
 	TOKEN_KW_FUNCTION                  // function
-	TOKEN_KW_GOTO                      // goto
 	TOKEN_KW_IF                        // if
 	TOKEN_KW_IN                        // in
 	TOKEN_KW_LOCAL                     // local
@@ -70,7 +68,6 @@ var keywords = map[string]int{
 	"false": TOKEN_KW_FALSE,
 	"for":   TOKEN_KW_FOR,
 	"fn":    TOKEN_KW_FUNCTION,
-	"goto":  TOKEN_KW_GOTO,
 	"if":    TOKEN_KW_IF,
 	"in":    TOKEN_KW_IN,
 	"shy":   TOKEN_KW_LOCAL,

compiler/parser/parse_stat.go

@@ -31,10 +31,6 @@ func parseStat(lexer *Lexer) Stat {
 		return parseEmptyStat(lexer)
 	case TOKEN_KW_BREAK:
 		return parseBreakStat(lexer)
-	case TOKEN_SEP_LABEL:
-		return parseLabelStat(lexer)
-	case TOKEN_KW_GOTO:
-		return parseGotoStat(lexer)
 	case TOKEN_KW_WHILE:
 		return parseWhileStat(lexer)
 	case TOKEN_KW_IF:
@@ -62,21 +58,6 @@ func parseBreakStat(lexer *Lexer) *BreakStat {
 	return &BreakStat{lexer.Line()}
 }
 
-// ‘::’ Name ‘::’
-func parseLabelStat(lexer *Lexer) *LabelStat {
-	lexer.NextTokenOfKind(TOKEN_SEP_LABEL) // ::
-	_, name := lexer.NextIdentifier()      // name
-	lexer.NextTokenOfKind(TOKEN_SEP_LABEL) // ::
-	return &LabelStat{name}
-}
-
-// goto Name
-func parseGotoStat(lexer *Lexer) *GotoStat {
-	lexer.NextTokenOfKind(TOKEN_KW_GOTO) // goto
-	_, name := lexer.NextIdentifier()    // name
-	return &GotoStat{name}
-}
-
 // while exp do block end
 func parseWhileStat(lexer *Lexer) *WhileStat {
 	lexer.NextTokenOfKind(TOKEN_KW_WHILE)   // while

test/basic.lk

@@ -13,6 +13,9 @@ long comment
 shy long = '''
 abc
 '''
+goto SKIP
+error('never reached')
+::SKIP::
 
 if #long >= 0 and '' {
     print("hello", #long)