From 469625d32a81c45e79ca7e990d5223ecdeb74e5d Mon Sep 17 00:00:00 2001
From: Luna <git@l4.pm>
Date: Sun, 22 Sep 2019 18:26:00 -0300
Subject: [PATCH] add CompileError error type

---
 src/codegen.zig | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/src/codegen.zig b/src/codegen.zig
index b0d652a..d45320f 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -7,6 +7,8 @@ fn sliceify(non_slice: ?[*]const u8) []const u8 {
     return non_slice.?[0..std.mem.len(u8, non_slice.?)];
 }
 
+pub const CompileError = error{LLVMError};
+
 pub const Codegen = struct {
     allocator: *std.mem.Allocator,
 
@@ -89,9 +91,7 @@ pub const Codegen = struct {
 
         if (llvm.LLVMWriteBitcodeToFile(mod, c"awoo.bc") != 0) {
             std.debug.warn("error writing bitcode to file: {}\n", sliceify(err));
-
-            // TODO return error value
-            @panic("compile error");
+            return CompileError.LLVMError;
         }
 
         //llvm.InitializeAllTargetInfos();
@@ -103,9 +103,7 @@ pub const Codegen = struct {
         var engine: llvm.LLVMExecutionEngineRef = undefined;
         if (llvm.LLVMCreateExecutionEngineForModule(&engine, mod, &err) != 0) {
             std.debug.warn("failed to create execution engine: {}\n", sliceify(err));
-
-            // TODO return error value
-            @panic("compile error");
+            return CompileError.LLVMError;
         }
 
         var machine = llvm.LLVMGetExecutionEngineTargetMachine(engine);
@@ -135,9 +133,7 @@ pub const Codegen = struct {
             &err,
         ) != 0) {
             std.debug.warn("failed to emit to file: {}\n", sliceify(err));
-
-            // TODO return error value
-            @panic("compile error");
+            return CompileError.LLVMError;
         }
     }
 };