Trait ParseComparison 

pub trait ParseComparison {
    // Required methods
    fn current_token(&self) -> &Token;
    fn advance(&mut self);
    fn consume(&mut self, expected: Token) -> Result<(), String>;
    fn parse_primary(&mut self) -> Result<SqlExpression, String>;
    fn parse_additive(&mut self) -> Result<SqlExpression, String>;
    fn parse_expression_list(&mut self) -> Result<Vec<SqlExpression>, String>;
    fn parse_subquery(&mut self) -> Result<SelectStatement, String>;
}

Trait that parsers must implement to use comparison expression parsing

Required Methods

fn current_token(&self) -> &Token

fn advance(&mut self)

fn consume(&mut self, expected: Token) -> Result<(), String>

fn parse_primary(&mut self) -> Result<SqlExpression, String>

fn parse_additive(&mut self) -> Result<SqlExpression, String>

fn parse_expression_list(&mut self) -> Result<Vec<SqlExpression>, String>

fn parse_subquery(&mut self) -> Result<SelectStatement, String>

Implementors

impl ParseComparison for Parser