Some cleanups.

2023-03-28 22:16:48 -05:00
parent c3e1c90261
commit 289997af5a
10 changed files with 190 additions and 246 deletions
--- a/src/backend/error.rs
+++ b/src/backend/error.rs
@@ -0,0 +1,47 @@
+use codespan_reporting::diagnostic::Diagnostic;
+use cranelift_codegen::{CodegenError, settings::SetError, isa::LookupError};
+use cranelift_module::ModuleError;
+use crate::backend::runtime::RuntimeFunctionError;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum BackendError {
+    #[error("Cranelift module error: {0}")]
+    Cranelift(#[from] ModuleError),
+    #[error("Builtin function error: {0}")]
+    BuiltinError(#[from] RuntimeFunctionError),
+    #[error("Internal variable lookup error")]
+    VariableLookupFailure,
+    #[error(transparent)]
+    CodegenError(#[from] CodegenError),
+    #[error(transparent)]
+    SetError(#[from] SetError),
+    #[error(transparent)]
+    LookupError(#[from] LookupError),
+}
+
+impl From<BackendError> for Diagnostic<usize> {
+    fn from(value: BackendError) -> Self {
+        match value {
+            BackendError::Cranelift(me) => {
+                Diagnostic::error().with_message(format!("Internal cranelift error: {}", me))
+            }
+            BackendError::BuiltinError(me) => {
+                Diagnostic::error().with_message(format!("Internal runtime function error: {}", me))
+            }
+            BackendError::VariableLookupFailure => {
+                Diagnostic::error().with_message("Internal variable lookup error!")
+            }
+            BackendError::CodegenError(me) => {
+                Diagnostic::error().with_message(format!("Internal codegen error: {}", me))
+            }
+            BackendError::SetError(me) => {
+                Diagnostic::error().with_message(format!("Internal backend setup error: {}", me))
+            }
+            BackendError::LookupError(me) => {
+                Diagnostic::error().with_message(format!("Internal error: {}", me))
+            }
+        }
+    }
+}
+