Method parseCreateCommand

parser/parser.go:71–139

parseCreateCommand - Return ast.CreateCommand created from tokens and validate the syntax Example of input parsable to the ast.CreateCommand: create table tbl( one TEXT , two INT );

()

// Example of input parsable to the ast.CreateCommand:
// create table tbl( one TEXT , two INT );
func (parser *Parser) parseCreateCommand() (ast.Command, error) {
	// token.CREATE already at current position in parser
	createCommand := &ast.CreateCommand{Token: parser.currentToken}

	// Skip token.CREATE
	parser.nextToken()

	err := validateTokenAndSkip(parser, []token.Type{token.TABLE})
	if err != nil {
		return nil, err
	}

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

	if strings.Contains(parser.currentToken.Literal, ".") {
		return nil, &IllegalPeriodInIdentParserError{name: parser.currentToken.Literal}
	}
	createCommand.Name = ast.Identifier{Token: parser.currentToken}

	// Skip token.IDENT
	parser.nextToken()

	err = validateTokenAndSkip(parser, []token.Type{token.LPAREN})
	if err != nil {
		return nil, err
	}

	// Begin of inside Paren
	for parser.currentToken.Type == token.IDENT {
		err = validateToken(parser.peekToken.Type, []token.Type{token.TEXT, token.INT})
		if err != nil {
			return nil, err
		}

		if strings.Contains(parser.currentToken.Literal, ".") {
			return nil, &IllegalPeriodInIdentParserError{name: parser.currentToken.Literal}
		}

		createCommand.ColumnNames = append(createCommand.ColumnNames, parser.currentToken.Literal)
		createCommand.ColumnTypes = append(createCommand.ColumnTypes, parser.peekToken)

		// Skip token.IDENT
		parser.nextToken()
		// Skip token.TEXT or token.INT
		parser.nextToken()

		if parser.currentToken.Type != token.COMMA {
			break
		}

		// Skip token.COMMA
		parser.nextToken()
	}
	// End of inside Paren