54 lines
1.8 KiB
Rust
54 lines
1.8 KiB
Rust
//! Errors for Zcash consensus-critical serialization.
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use std::{array::TryFromSliceError, io, num::TryFromIntError, str::Utf8Error};
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use hex::FromHexError;
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use thiserror::Error;
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/// A serialization error.
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// TODO: refine error types -- better to use boxed errors?
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#[derive(Error, Debug)]
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pub enum SerializationError {
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/// An io error that prevented deserialization
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#[error("io error: {0}")]
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Io(#[from] io::Error),
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/// The data to be deserialized was malformed.
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// TODO: refine errors
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#[error("parse error: {0}")]
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Parse(&'static str),
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/// A string was not UTF-8.
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///
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/// Note: Rust `String` and `str` are always UTF-8.
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#[error("string was not UTF-8: {0}")]
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Utf8Error(#[from] Utf8Error),
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/// A slice was an unexpected length during deserialization.
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#[error("slice was the wrong length: {0}")]
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TryFromSliceError(#[from] TryFromSliceError),
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/// The length of a vec is too large to convert to a usize (and thus, too large to allocate on this platform)
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#[error("CompactSize too large: {0}")]
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TryFromIntError(#[from] TryFromIntError),
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/// A string was not valid hexadecimal.
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#[error("string was not hex: {0}")]
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FromHexError(#[from] FromHexError),
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/// An error caused when validating a zatoshi `Amount`
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#[error("input couldn't be parsed as a zatoshi `Amount`: {source}")]
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Amount {
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/// The source error indicating how the num failed to validate
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#[from]
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source: crate::amount::Error,
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},
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/// Invalid transaction with a non-zero balance and no Sapling shielded spends or outputs.
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///
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/// Transaction does not conform to the Sapling [consensus
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/// rule](https://zips.z.cash/protocol/protocol.pdf#txnencodingandconsensus).
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#[error("transaction balance is non-zero but doesn't have Sapling shielded spends or outputs")]
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BadTransactionBalance,
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}
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