grammers_tl_parser/
errors.rs

1// Copyright 2020 - developers of the `grammers` project.
2//
3// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
4// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
5// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
6// option. This file may not be copied, modified, or distributed
7// except according to those terms.
8
9//! Errors that can occur during the parsing of [Type Language] definitions.
10//!
11//! [Type Language]: https://core.telegram.org/mtproto/TL
12
13use std::num::ParseIntError;
14
15/// The error type for the parsing operation of [`Definition`]s.
16///
17/// [`Definition`]: crate::Definition
18#[derive(Debug, PartialEq)]
19pub enum ParseError {
20    /// The definition is empty.
21    Empty,
22
23    /// The identifier from this definition is invalid.
24    InvalidId(ParseIntError),
25
26    /// One of the parameters from this definition was invalid.
27    InvalidParam(ParamParseError),
28
29    /// The name information is missing from the definition.
30    MissingName,
31
32    /// The type information is missing from the definition.
33    MissingType,
34
35    /// The parser does not know how to parse the definition.
36    NotImplemented,
37
38    /// The file contained an unknown separator (such as `---foo---`)
39    UnknownSeparator,
40}
41
42/// The error type for the parsing operation of [`Parameter`]s.
43///
44/// [`Parameter`]: crate::tl::Parameter
45#[derive(Debug, PartialEq)]
46pub enum ParamParseError {
47    /// The parameter was empty.
48    Empty,
49
50    /// The flag specification was invalid.
51    InvalidFlag,
52
53    /// The generic argument was invalid.
54    InvalidGeneric,
55
56    /// The parameter is actually a generic type definition for later
57    /// use, such as `{X:Type}`, but it is not a parameter in itself.
58    TypeDef { name: String },
59
60    /// The parameter refers to some unknown definition.
61    MissingDef,
62
63    /// The parser does not know how to parse the parameter.
64    NotImplemented,
65}
grammers_tl_parser/errors.rs

grammers_tl_parser/
errors.rs
