Method parseRoleSetting

parser/parse_system.go:406–454

(_ Pos)

}

func (p *Parser) parseRoleSetting(_ Pos) (*RoleSetting, error) {
	pairs := make([]*SettingPair, 0)
	for p.matchTokenKind(TokenKindIdent) {
		name, err := p.parseIdent()
		if err != nil {
			return nil, err
		}
		switch name.Name {
		case "NONE", "READABLE", "WRITABLE", "CONST", "CHANGEABLE_IN_READONLY":
			return &RoleSetting{
				Modifier:     name,
				SettingPairs: pairs,
			}, nil
		}
		switch {
		case p.matchTokenKind(TokenKindSingleEQ),
			p.matchTokenKind(TokenKindInt),
			p.matchTokenKind(TokenKindFloat),
			p.matchTokenKind(TokenKindString):
			var op TokenKind
			if token := p.tryConsumeTokenKind(TokenKindSingleEQ); token != nil {
				op = token.Kind
			}
			value, err := p.parseLiteral(p.Pos())
			if err != nil {
				return nil, err
			}
			// docs: https://clickhouse.com/docs/en/sql-reference/statements/alter/role
			// the operator "=" was required if the variable name is NOT in
			// ["MIN", "MAX", "PROFILE"] and value is existed.
			if value != nil && name.Name != "MIN" && name.Name != "MAX" && name.Name != "PROFILE" && op != TokenKindSingleEQ {
				return nil, fmt.Errorf("expected operator = or no value, but got %s", op)
			}
			pairs = append(pairs, &SettingPair{
				Name:      name,
				Operation: op,
				Value:     value,
			})
		default:
			pairs = append(pairs, &SettingPair{
				Name: name,
			})
		}

	}
	return &RoleSetting{
		SettingPairs: pairs,
	}, nil
}

func (p *Parser) parseRoleSettings(_ Pos) ([]*RoleSetting, error) {
	settings := make([]*RoleSetting, 0)