p2panda-rs 0.4.0

All the things a panda needs
Documentation 
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// SPDX-License-Identifier: AGPL-3.0-or-later

use thiserror::Error;

/// Error types for methods of `Operation` struct.
#[allow(missing_copy_implementations)]
#[derive(Error, Debug)]
pub enum OperationError {
    /// Invalid attempt to create an operation without any fields data.
    #[error("operation fields can not be empty")]
    EmptyFields,

    /// Invalid attempt to create a delete operation with fields.
    #[error("DELETE operation must not have fields")]
    DeleteWithFields,

    /// Invalid attempt to create an operation without any previous operations data.
    #[error("previous_operations field can not be empty")]
    EmptyPreviousOperations,

    /// Invalid attempt to create an operation with previous operations data.
    #[error("previous_operations field should be empty")]
    ExistingPreviousOperations,

    /// Invalid hash found.
    #[error(transparent)]
    HashError(#[from] crate::hash::HashError),
}

/// Error types for methods of `OperationFields` struct.
#[derive(Error, Debug)]
#[allow(missing_copy_implementations)]
pub enum OperationFieldsError {
    /// Detected duplicate field when adding a new one.
    #[error("field already exists")]
    FieldDuplicate,

    /// Tried to interact with an unknown field.
    #[error("field does not exist")]
    UnknownField,
}

/// Custom error types for `OperationEncoded`.
#[derive(Error, Debug)]
#[allow(missing_copy_implementations)]
pub enum OperationEncodedError {
    /// Encoded operation string contains invalid hex characters.
    #[error("invalid hex encoding in operation")]
    InvalidHexEncoding,
}

/// Error types for methods of `VerifiedOperation` struct.
#[derive(Error, Debug)]
pub enum VerifiedOperationError {
    /// Invalid encoded entry found.
    #[error(transparent)]
    EntrySignedError(#[from] crate::entry::EntrySignedError),

    /// Encoded operation data is invalid.
    #[error(transparent)]
    OperationEncodedError(#[from] OperationEncodedError),

    /// Invalid operation found.
    #[error(transparent)]
    OperationError(#[from] OperationError),

    /// Invalid author found.
    #[error(transparent)]
    AuthorError(#[from] crate::identity::AuthorError),

    /// Invalid operation id hash found.
    #[error(transparent)]
    HashError(#[from] crate::hash::HashError),
}