diff options
Diffstat (limited to 'src/codegen.zig')
| -rw-r--r-- | src/codegen.zig | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/codegen.zig b/src/codegen.zig index fd4321fee9..9a8eb7abf2 100644 --- a/src/codegen.zig +++ b/src/codegen.zig @@ -432,6 +432,54 @@ pub fn generateSymbol( return Result{ .appended = {} }; }, + .ErrorUnion => { + const error_ty = typed_value.ty.errorUnionSet(); + const payload_ty = typed_value.ty.errorUnionPayload(); + const is_payload = typed_value.val.errorUnionIsPayload(); + + const error_val = if (!is_payload) typed_value.val else Value.initTag(.zero); + switch (try generateSymbol(bin_file, parent_atom_index, src_loc, .{ + .ty = error_ty, + .val = error_val, + }, code, debug_output)) { + .appended => {}, + .externally_managed => |external_slice| { + code.appendSliceAssumeCapacity(external_slice); + }, + .fail => |em| return Result{ .fail = em }, + } + + if (payload_ty.hasRuntimeBits()) { + const payload_val = if (typed_value.val.castTag(.eu_payload)) |val| val.data else Value.initTag(.undef); + switch (try generateSymbol(bin_file, parent_atom_index, src_loc, .{ + .ty = payload_ty, + .val = payload_val, + }, code, debug_output)) { + .appended => {}, + .externally_managed => |external_slice| { + code.appendSliceAssumeCapacity(external_slice); + }, + .fail => |em| return Result{ .fail = em }, + } + } + + return Result{ .appended = {} }; + }, + .ErrorSet => { + const target = bin_file.options.target; + switch (typed_value.val.tag()) { + .@"error" => { + const name = typed_value.val.getError().?; + const kv = try bin_file.options.module.?.getErrorValue(name); + const endian = target.cpu.arch.endian(); + try code.writer().writeInt(u32, kv.value, endian); + }, + else => { + try code.writer().writeByteNTimes(0, @intCast(usize, typed_value.ty.abiSize(target))); + }, + } + return Result{ .appended = {} }; + }, else => |t| { return Result{ .fail = try ErrorMsg.create( |