Method parseLimitCommand

parser/parser.go:500–530

parseLimitCommand - Return ast.LimitCommand created from tokens and validate the syntax Example of input parsable to the ast.LimitCommand: LIMIT 10

()

// Example of input parsable to the ast.LimitCommand:
// LIMIT 10
func (parser *Parser) parseLimitCommand() (ast.Command, error) {
	// token.LIMIT already at current position in parser
	limitCommand := &ast.LimitCommand{Token: parser.currentToken}

	// token.LIMIT no longer needed
	parser.nextToken()

	err := validateToken(parser.currentToken.Type, []token.Type{token.LITERAL})
	if err != nil {
		return nil, err
	}

	// convert count number to int
	count, err := strconv.Atoi(parser.currentToken.Literal)
	if err != nil {
		return nil, err
	}

	if count < 0 {
		return nil, &ArithmeticLessThanZeroParserError{variable: "limit"}
	}

	limitCommand.Count = count

	// Skip token.IDENT
	parser.nextToken()

	parser.skipIfCurrentTokenIsSemicolon()

	return limitCommand, nil
}

// parseOffsetCommand - Return ast.OffsetCommand created from tokens and validate the syntax
//