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use std::{
collections::{HashMap, VecDeque},
num::ParseIntError,
str::Utf8Error,
};
use thiserror::Error;
use crate::element::{Content, Name, NamespaceDeclaration};
#[derive(Error, Debug)]
pub enum DeserializeError {
#[error("could not parse string {0:?} to requested value")]
FromStr(String),
#[error("unexpected attributes {0:?}")]
UnexpectedAttributes(HashMap<Name, String>),
#[error("unexpected element content: {0:?}")]
UnexpectedContent(VecDeque<Content>),
#[error("attribute `{0:?}` missing")]
MissingAttribute(Name),
#[error("incorrect localname: expected `{expected:?}`, found `{found:?}`")]
IncorrectName { expected: String, found: String },
#[error("incorrect namespace: expected `{expected:?}`, found `{found:?}`")]
IncorrectNamespace { expected: String, found: String },
#[error("unqualified namespace: expected `{expected:?}`")]
Unqualified { expected: String },
#[error("element missing expected child")]
MissingChild,
#[error("element missing expected text value")]
MissingValue,
}
#[derive(Error, Debug)]
pub enum Error {
#[error(transparent)]
ReadError(#[from] std::io::Error),
#[error(transparent)]
Utf8Error(#[from] Utf8Error),
#[error("nom parse error: {0}")]
ParseError(String),
#[error("unknown xml entity reference `&{0};`")]
EntityProcessError(String),
#[error(transparent)]
InvalidCharRef(CharRefError),
#[error("duplicate namespace declaration: {0:?}")]
DuplicateNameSpaceDeclaration(NamespaceDeclaration),
#[error("duplicate attribute: {0}")]
DuplicateAttribute(String),
#[error("mismatched end tag: expected `{0:?}`, found `{1:?}`")]
MismatchedEndTag(Name, Name),
#[error("not currently in any element")]
NotInElement(String),
#[error("extra unexpected data included in complete parse: `{0}`")]
ExtraData(String),
#[error("namespace `{0}` has not previously been declared")]
UndeclaredNamespace(String),
#[error(transparent)]
Deserialize(#[from] DeserializeError),
/// root element end tag already processed
#[error("root element has already been fully processed")]
RootElementEnded,
}
#[derive(Error, Debug)]
pub enum CharRefError {
#[error(transparent)]
ParseInt(#[from] ParseIntError),
#[error("u32 `{0}` does not represent a valid char")]
IntegerNotAChar(u32),
#[error("`{0}` is not a valid xml char")]
InvalidXMLChar(char),
}
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