ferro_babe/
error.rs

1use rust_asm::error::ClassReadError;
2use thiserror::Error;
3
4#[derive(Debug, Error)]
5/// Errors that prevent FerroBabe from returning the requested result.
6pub enum FerroBabeError {
7    /// The byte sequence ended before the eight-byte class-file header was available.
8    #[error("class input is too short: expected at least {required} bytes, found {actual}")]
9    InputTooShort {
10        /// Minimum number of bytes required for the header.
11        required: usize,
12        /// Number of bytes supplied by the caller.
13        actual: usize,
14    },
15
16    /// The input header did not contain the Java class-file magic value.
17    #[error("input is not a Java class file: found magic 0x{found:08x}")]
18    InvalidMagic {
19        /// Four-byte value read from the input header.
20        found: u32,
21    },
22
23    /// The class-file major version is outside FerroBabe's supported range.
24    #[error(
25        "unsupported Java class-file version {major}.{minor}; FerroBabe supports 45.0 through 70.65535"
26    )]
27    UnsupportedVersion {
28        /// Unsupported class-file major version.
29        major: u16,
30        /// Class-file minor version paired with `major`.
31        minor: u16,
32    },
33
34    /// Reading from a caller-provided [`std::io::Read`] source failed.
35    #[error("class input could not be read: {source}")]
36    InputRead {
37        #[source]
38        /// Source reader error.
39        source: std::io::Error,
40    },
41
42    /// The underlying class-file decoder rejected the input.
43    #[error("class-file decoding failed: {source}")]
44    Decode {
45        #[source]
46        /// Underlying decoder error.
47        source: ClassReadError,
48    },
49
50    /// A formatter could not write to its [`std::fmt::Write`] destination.
51    #[error("formatted output could not be written")]
52    Format {
53        #[source]
54        /// Formatting destination error.
55        source: std::fmt::Error,
56    },
57
58    /// Text output was requested for a partial result that has no complete class model.
59    #[error("a partial class-file result cannot be formatted")]
60    IncompleteDisassembly,
61}
ferro_babe/error.rs

ferro_babe/
error.rs
