feat(goctl): Add api parser (#2585)

tools/goctl/pkg/parser/api/ast/infostatement.go

@@ -0,0 +1,65 @@
+package ast
+
+import "github.com/zeromicro/go-zero/tools/goctl/pkg/parser/api/token"
+
+// InfoStmt is the info statement.
+type InfoStmt struct {
+	// Info is the info keyword.
+	Info *TokenNode
+	// LParen is the left parenthesis.
+	LParen *TokenNode
+	// Values is the info values.
+	Values []*KVExpr
+	// RParen is the right parenthesis.
+	RParen *TokenNode
+}
+
+func (i *InfoStmt) HasHeadCommentGroup() bool {
+	return i.Info.HasHeadCommentGroup()
+}
+
+func (i *InfoStmt) HasLeadingCommentGroup() bool {
+	return i.RParen.HasLeadingCommentGroup()
+}
+
+func (i *InfoStmt) CommentGroup() (head, leading CommentGroup) {
+	return i.Info.HeadCommentGroup, i.RParen.LeadingCommentGroup
+}
+
+func (i *InfoStmt) Format(prefix ...string) string {
+	if len(i.Values) == 0 {
+		return ""
+	}
+	var textList []string
+	for _, v := range i.Values {
+		if v.Value.IsZeroString() {
+			continue
+		}
+		textList = append(textList, v.Format(Indent))
+	}
+	if len(textList) == 0 {
+		return ""
+	}
+
+	w := NewBufferWriter()
+	infoNode := transferTokenNode(i.Info, withTokenNodePrefix(prefix...), ignoreLeadingComment())
+	w.Write(withNode(infoNode, i.LParen))
+	w.NewLine()
+	for _, v := range i.Values {
+		node := transferTokenNode(v.Key, withTokenNodePrefix(peekOne(prefix)+Indent), ignoreLeadingComment())
+		w.Write(withNode(node, v.Value), expectIndentInfix(), expectSameLine())
+		w.NewLine()
+	}
+	w.Write(withNode(transferTokenNode(i.RParen, withTokenNodePrefix(prefix...))))
+	return w.String()
+}
+
+func (i *InfoStmt) End() token.Position {
+	return i.RParen.End()
+}
+
+func (i *InfoStmt) Pos() token.Position {
+	return i.Info.Pos()
+}
+
+func (i *InfoStmt) stmtNode() {}