rusty_dex/
error.rs

1//! Collection of error types for DEX files parsing
2//!
3//! We rely on `thiserror` for the heavy lifting
4
5use thiserror::Error;
6
7#[derive(Error, Debug)]
8/// All errors that can be returned by the parser
9pub enum DexError {
10    /// The checksum of the header does not match the one in the DEX header
11    #[error("computed checksum does not match one in header")]
12    InvalidChecksumError,
13    /// The header of the file is too short to be a valid DEX header
14    #[error("DEX header too short")]
15    DexHeaderTooShortError,
16    /// The endianness tag of the header is invalid
17    #[error("invalid endianness tag")]
18    InvalidEndianessTag,
19    /// The stream ended abruptly
20    #[error("no data left to read")]
21    NoDataLeftError,
22    /// The unsigned LEB128 value has more than 5 bytes
23    #[error("too many bytes in unsigned LEB128 value")]
24    InvalidUleb128Value,
25    /// The signed LEB128 value has more than 5 bytes
26    #[error("too many bytes in unsigned LEB128p1 value")]
27    InvalidUleb128p1Value,
28    /// The unsigned LEB128p1 value has more than 5 bytes
29    #[error("too many bytes in signed LEB128 value")]
30    InvalidSleb128Value,
31    /// Attempted to move the cursor after the end of the stream
32    #[error("cannot move reader to requested offset")]
33    SeekError(#[from] std::io::Error),
34    /// Requested type index is not in the list of types
35    #[error("cannot find element in types list")]
36    InvalidTypeIdx,
37    /// Requested string index is not in the list of strings
38    #[error("cannot find element in strings list")]
39    InvalidStringIdx,
40    /// Requested field index is not in the list of fields
41    #[error("cannot find element in fields list")]
42    InvalidFieldIdx,
43    /// Requested method index is not in the list of methods
44    #[error("cannot find element in methods list")]
45    InvalidMethodIdx,
46    /// Encountered an invalid or unused opcode
47    #[error("cannot parse instruction opcode")]
48    InvalidOpCode,
49}
rusty_dex/error.rs

rusty_dex/
error.rs
