diff options
Diffstat (limited to 'src/mir/from_hir.cpp')
| -rw-r--r-- | src/mir/from_hir.cpp | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/src/mir/from_hir.cpp b/src/mir/from_hir.cpp index 29d8d42c..5111320c 100644 --- a/src/mir/from_hir.cpp +++ b/src/mir/from_hir.cpp @@ -989,13 +989,18 @@ namespace { const auto& ty_in = *ie.inner; TU_MATCH_DEF( ::HIR::TypeRef::Data, (ty_out.m_data), (e), ( - TODO(node.span(), "MIR _Unsize to " << ty_out); + const auto& lang_Unsize = m_builder.crate().get_lang_item_path(node.span(), "unsize"); + if( m_builder.resolve().find_impl( node.span(), lang_Unsize, ::HIR::PathParams(ty_out.clone()), ty_in.clone(), [](auto ){ return true; }) ) + { + // - HACK: Emit a cast operation on the pointers. Leave it up to monomorph to 'fix' it + m_builder.set_result( node.span(), ::MIR::RValue::make_Cast({ mv$(ptr_lval), node.m_res_type.clone() }) ); + } + else + { + // Probably an error. + TODO(node.span(), "MIR _Unsize to " << ty_out); + } ), - // TODO: Unsize custom types containing a ?Size generic - See the Unsize trait - //(Path, - // ), - //(Generic, - // ), (Slice, if( ty_in.m_data.is_Array() ) { |