Перенос старых наработок в новый репозиторий

libnres/src/error.rs

@@ -0,0 +1,45 @@
+extern crate miette;
+extern crate thiserror;
+
+use miette::Diagnostic;
+use thiserror::Error;
+
+#[derive(Error, Diagnostic, Debug)]
+pub enum ConverterError {
+    #[error("error converting an value")]
+    #[diagnostic(code(libnres::infallible))]
+    Infallible(#[from] std::convert::Infallible),
+
+    #[error("error converting an value")]
+    #[diagnostic(code(libnres::try_from_int_error))]
+    TryFromIntError(#[from] std::num::TryFromIntError),
+}
+
+#[derive(Error, Diagnostic, Debug)]
+pub enum ReaderError {
+    #[error(transparent)]
+    #[diagnostic(code(libnres::convert_error))]
+    ConvertValue(#[from] ConverterError),
+
+    #[error("incorrect header format")]
+    #[diagnostic(code(libnres::list_type_error))]
+    IncorrectHeader,
+
+    #[error("incorrect file size (expected {expected:?} bytes, received {received:?} bytes)")]
+    #[diagnostic(code(libnres::file_size_error))]
+    IncorrectSizeFile { expected: u32, received: u32 },
+
+    #[error(
+        "incorrect size of the file list (not a multiple of {expected:?}, received {received:?})"
+    )]
+    #[diagnostic(code(libnres::list_size_error))]
+    IncorrectSizeList { expected: u32, received: u32 },
+
+    #[error("resource file reading error")]
+    #[diagnostic(code(libnres::io_error))]
+    ReadFile(#[from] std::io::Error),
+
+    #[error("file is too small (must be at least {expected:?} bytes, received {received:?} byte)")]
+    #[diagnostic(code(libnres::file_size_error))]
+    SmallFile { expected: u32, received: u32 },
+}