urd 0.1.0

Dialogue scripting language for games — compiler, VM, and static analysis
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

//! # Error Handling Module
//!
//! This module defines error types used throughout the Urd language implementation.
//! It includes lexer errors, parsing errors, and runtime errors that can occur
//! during the compilation and execution of Urd scripts.

use std::num::{ParseFloatError, ParseIntError};

/// Errors that can happen on lexing level
#[derive(thiserror::Error, Debug, PartialEq, Clone, Default)]
pub enum LexerError {
    /// Unknown error during lexing. Ideally wouldn't happen, but you never know.
    #[default]
    #[error("Unknown lexer error.")]
    Unknown,

    /// Error for invalid escape sequences in string literals
    #[error("Invalid escape sequence: {0}")]
    InvalidEscape(String),

    /// For all things wrong with interpolation in string literals
    #[error("Invalid interpolation")]
    Interpolation,

    /// String literal that was never closed with a matching `"`
    #[error("Unterminated string literal")]
    UnterminatedString,

    /// Integer parsing failures
    #[error("Invalid integer literal. {0}")]
    Int(#[from] ParseIntError),

    /// Float parsing failures
    #[error("Invalid float literal. {0}")]
    Float(#[from] ParseFloatError),

    /// Errors with dice syntax
    #[error(
        "Invalid dice syntax. If you're wondering why you can't create 1 mil dice with 1 mil faces: we only support up to 255 sides/count"
    )]
    InvalidDice,
}