assembler: great leap forwards (more like the Cultural Revolution)

assembler/src/error.rs

@@ -0,0 +1,48 @@
+//! This module contains code for various types of errors that may occur when assembling a
+//! set of source DSA files.
+
+use std::fmt::{Debug, Display};
+
+use crate::source::source_info::SourceInfo;
+
+/// An error that may occur during the assembly of a set of source files.
+#[derive(Debug)]
+pub struct AssembleError {
+    /// Display implementation can handle when the source code information is shown or
+    /// not.
+    source_info: Option<SourceInfo>,
+    /// The type of assembly error that occurred.
+    kind: AssembleErrorKind,
+    /// The formatter to handle printing the error.
+    formatter: Box<dyn ErrorFormatter>,
+}
+
+impl AssembleError {
+    pub fn new_source_error(source_info: SourceInfo, kind: AssembleErrorKind) -> Self {
+        Self {
+            source_info: Some(source_info),
+            kind,
+            formatter,
+        }
+    }
+
+    pub fn new_other_error(kind: AssembleErrorKind) {}
+}
+
+impl Display for AssembleError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.formatter
+            .write(f, self.source_info.as_ref(), &self.kind)
+    }
+}
+
+/// Marker trait.
+impl std::error::Error for AssembleError {}
+
+/// Different types of errors that may occur when assembling a set of input source files.
+#[non_exhaustive]
+#[derive(Debug)]
+pub enum AssembleErrorKind {}
+
+pub mod conversions;
+pub mod formatters;