diff options
Diffstat (limited to 'src/codegen.cpp')
| -rw-r--r-- | src/codegen.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/codegen.cpp b/src/codegen.cpp index d33c10116a..59ce94e02e 100644 --- a/src/codegen.cpp +++ b/src/codegen.cpp @@ -1007,6 +1007,31 @@ static LLVMValueRef gen_cast_expr(CodeGen *g, AstNode *node) { return cast_expr->tmp_ptr; } + case CastOpBytesToSlice: + { + assert(cast_expr->tmp_ptr); + assert(wanted_type->id == TypeTableEntryIdStruct); + assert(wanted_type->data.structure.is_slice); + assert(actual_type->id == TypeTableEntryIdArray); + + TypeTableEntry *wanted_pointer_type = wanted_type->data.structure.fields[0].type_entry; + TypeTableEntry *wanted_child_type = wanted_pointer_type->data.pointer.child_type; + + set_debug_source_node(g, node); + + int wanted_ptr_index = wanted_type->data.structure.fields[0].gen_index; + LLVMValueRef dest_ptr_ptr = LLVMBuildStructGEP(g->builder, cast_expr->tmp_ptr, wanted_ptr_index, ""); + LLVMValueRef src_ptr_casted = LLVMBuildBitCast(g->builder, expr_val, wanted_pointer_type->type_ref, ""); + LLVMBuildStore(g->builder, src_ptr_casted, dest_ptr_ptr); + + int wanted_len_index = wanted_type->data.structure.fields[1].gen_index; + LLVMValueRef len_ptr = LLVMBuildStructGEP(g->builder, cast_expr->tmp_ptr, wanted_len_index, ""); + LLVMValueRef len_val = LLVMConstInt(g->builtin_types.entry_usize->type_ref, + actual_type->data.array.len / type_size(g, wanted_child_type), false); + LLVMBuildStore(g->builder, len_val, len_ptr); + + return cast_expr->tmp_ptr; + } case CastOpIntToFloat: assert(actual_type->id == TypeTableEntryIdInt); if (actual_type->data.integral.is_signed) { |