Method parseDeleteCommand

parser/parser.go:384–409

parseDeleteCommand - Return ast.DeleteCommand created from tokens and validate the syntax Example of input parsable to the ast.DeleteCommand: DELETE FROM table;

()

// Example of input parsable to the ast.DeleteCommand:
// DELETE FROM table;
func (parser *Parser) parseDeleteCommand() (ast.Command, error) {
	// token.DELETE already at current position in parser
	deleteCommand := &ast.DeleteCommand{Token: parser.currentToken}

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

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

	err = validateToken(parser.currentToken.Type, []token.Type{token.IDENT})
	if err != nil {
		return nil, err
	}
	deleteCommand.Name = ast.Identifier{Token: parser.currentToken}

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

	// expect WHERE
	err = validateToken(parser.currentToken.Type, []token.Type{token.WHERE})

	return deleteCommand, err
}

// parseDropCommand - Return ast.DropCommand created from tokens and validate the syntax
//