#[cfg(feature = "serde-codec")]
use alloc::string::ToString;
use alloc::{string::String, vec::Vec};
use crate::cid::Cid;
use crate::ipld::{Ipld, IpldIndex};
pub use anyhow::{Error, Result};
#[cfg(feature = "std")]
use thiserror::Error;
#[derive(Clone, Copy, Debug)]
#[cfg_attr(feature = "std", derive(Error), error("Block size {0} exceeds 1MiB."))]
pub struct BlockTooLarge(pub usize);
#[derive(Clone, Copy, Debug)]
#[cfg_attr(feature = "std", derive(Error), error("Unsupported codec {0:?}."))]
pub struct UnsupportedCodec(pub u64);
#[derive(Clone, Copy, Debug)]
#[cfg_attr(feature = "std", derive(Error), error("Unsupported multihash {0:?}."))]
pub struct UnsupportedMultihash(pub u64);
#[derive(Clone, Debug)]
#[cfg_attr(
feature = "std",
derive(Error),
error("Hash of data does not match the CID.")
)]
pub struct InvalidMultihash(pub Vec<u8>);
#[derive(Clone, Copy, Debug)]
#[cfg_attr(feature = "std", derive(Error), error("Failed to retrieve block {0}."))]
pub struct BlockNotFound(pub Cid);
#[cfg(feature = "serde-codec")]
#[derive(Clone, Debug)]
pub struct SerdeError(String);
#[cfg(feature = "serde-codec")]
impl core::fmt::Display for SerdeError {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
write!(f, "Serde error: {}", self.0)
}
}
#[cfg(feature = "serde-codec")]
impl serde::de::Error for SerdeError {
fn custom<T: core::fmt::Display>(msg: T) -> Self {
Self(msg.to_string())
}
}
#[cfg(feature = "serde-codec")]
impl serde::ser::Error for SerdeError {
fn custom<T: core::fmt::Display>(msg: T) -> Self {
Self(msg.to_string())
}
}
#[cfg(feature = "serde-codec")]
impl serde::ser::StdError for SerdeError {}
#[derive(Clone, Debug)]
#[cfg_attr(
feature = "std",
derive(Error),
error("Expected {expected:?} but found {found:?}")
)]
pub struct TypeError {
pub expected: TypeErrorType,
pub found: TypeErrorType,
}
impl TypeError {
pub fn new<A: Into<TypeErrorType>, B: Into<TypeErrorType>>(expected: A, found: B) -> Self {
Self {
expected: expected.into(),
found: found.into(),
}
}
}
#[cfg(not(feature = "std"))]
impl core::fmt::Display for TypeError {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
write!(f, "Expected {:?} but found {:?}", self.expected, self.found)
}
}
#[derive(Clone, Debug)]
pub enum TypeErrorType {
Null,
Bool,
Integer,
Float,
String,
Bytes,
List,
Map,
Link,
Key(String),
Index(usize),
}
impl From<Ipld> for TypeErrorType {
fn from(ipld: Ipld) -> Self {
Self::from(&ipld)
}
}
impl From<&Ipld> for TypeErrorType {
fn from(ipld: &Ipld) -> Self {
match ipld {
Ipld::Null => Self::Null,
Ipld::Bool(_) => Self::Bool,
Ipld::Integer(_) => Self::Integer,
Ipld::Float(_) => Self::Float,
Ipld::String(_) => Self::String,
Ipld::Bytes(_) => Self::Bytes,
Ipld::List(_) => Self::List,
Ipld::Map(_) => Self::Map,
Ipld::Link(_) => Self::Link,
}
}
}
impl From<IpldIndex<'_>> for TypeErrorType {
fn from(index: IpldIndex<'_>) -> Self {
match index {
IpldIndex::List(i) => Self::Index(i),
IpldIndex::Map(s) => Self::Key(s),
IpldIndex::MapRef(s) => Self::Key(s.into()),
}
}
}