Crate parser 

SqlExprParser - Generated by CongoCC Parser Generator

This parser was automatically generated from: SqlExprParser.ccc Do not edit this file directly. Regenerate from the grammar instead.

Features

• Arena-based allocation: All AST nodes and tokens are stored in a central arena
• Type-safe indices: NodeId and TokenId provide safe references without lifetimes
• Result-based errors: All parsing operations return Result<T, ParseError>
• Location tracking: Errors include line/column information for better diagnostics

Example

use parser::*;

fn main() -> Result<(), ParseError> {
    let input = "your input here".to_string();
    let mut parser = Parser::new(input)?;
    // parse() returns the root NodeId of the AST
    let root = parser.parse()?;
    // Access AST through the arena, with original input for pretty printing
    println!("{}", parser.arena().pretty_print(root, 0, parser.input()));
    Ok(())
}

Structs

AddExpressionNode

AST node for addExpression production

AndExpressionNode

AST node for andExpression production

Arena

Arena that owns all AST nodes and tokens

ComparisonExpressionNode

AST node for comparisonExpression production

EqualityExpressionNode

AST node for equalityExpression production

JmsSelectorNode

AST node for JmsSelector production

Lexer

The lexer/tokenizer for SqlExprParser

LiteralNode

AST node for literal production

MultExprNode

AST node for multExpr production

NodeId

Type-safe index for nodes in the arena

OrExpressionNode

AST node for orExpression production

ParseError

Error type for parsing failures

Parser

The parser for SqlExprParser

PrimaryExprNode

AST node for primaryExpr production

StringLiteralNode

AST node for stringLiteral production

Token

A single token in the input stream

TokenId

Type-safe index for tokens in the arena

UnaryExprNode

AST node for unaryExpr production

VariableNode

AST node for variable production

Enums

AddOp

Operator for addExpression

AstNode

Enum containing all AST node types

ComparisonOp

Operator for comparisonExpression

EqualityOp

Operator for equalityExpression

EvalError

Comprehensive error type for evaluation failures

LexicalState

Lexical state enumeration

MultExprOp

Operator for multExpr

RuntimeValue

User-provided values for variable substitution

TokenType

Token type enumeration

UnaryOp

Operator for unaryExpr

VisitControl

Controls visitor traversal behavior

Traits

TokenSource

Token source trait for tracking token locations

Functions

evaluate

Evaluate a SQL boolean expression string with variable bindings.

Type Aliases

ParseResult

Result type for parsing operations