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Add #no_type_assert and #type_assert to disable implicit type assertions with x.(T)

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gingerBill
2022-01-27 16:08:47 +00:00
parent 16786aac78
commit 24e7356825
8 changed files with 144 additions and 48 deletions
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src/llvm_backend_utility.cpp
+26 -15
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@@ -626,6 +626,12 @@ lbValue lb_emit_union_cast(lbProcedure *p, lbValue value, Type *type, TokenPos p
lbValue value_ = lb_address_from_load_or_generate_local(p, value);
if ((p->state_flags & StateFlag_no_type_assert) != 0 && !is_tuple) {
// just do a bit cast of the data at the front
lbValue ptr = lb_emit_conv(p, value_, alloc_type_pointer(type));
return lb_emit_load(p, ptr);
}
lbValue tag = {};
lbValue dst_tag = {};
lbValue cond = {};
@@ -666,23 +672,22 @@ lbValue lb_emit_union_cast(lbProcedure *p, lbValue value, Type *type, TokenPos p
lb_start_block(p, end_block);
if (!is_tuple) {
{
// NOTE(bill): Panic on invalid conversion
Type *dst_type = tuple->Tuple.variables[0]->type;
GB_ASSERT((p->state_flags & StateFlag_no_type_assert) == 0);
// NOTE(bill): Panic on invalid conversion
Type *dst_type = tuple->Tuple.variables[0]->type;
lbValue ok = lb_emit_load(p, lb_emit_struct_ep(p, v.addr, 1));
auto args = array_make<lbValue>(permanent_allocator(), 7);
args[0] = ok;
lbValue ok = lb_emit_load(p, lb_emit_struct_ep(p, v.addr, 1));
auto args = array_make<lbValue>(permanent_allocator(), 7);
args[0] = ok;
args[1] = lb_const_string(m, get_file_path_string(pos.file_id));
args[2] = lb_const_int(m, t_i32, pos.line);
args[3] = lb_const_int(m, t_i32, pos.column);
args[1] = lb_const_string(m, get_file_path_string(pos.file_id));
args[2] = lb_const_int(m, t_i32, pos.line);
args[3] = lb_const_int(m, t_i32, pos.column);
args[4] = lb_typeid(m, src_type);
args[5] = lb_typeid(m, dst_type);
args[6] = lb_emit_conv(p, value_, t_rawptr);
lb_emit_runtime_call(p, "type_assertion_check2", args);
}
args[4] = lb_typeid(m, src_type);
args[5] = lb_typeid(m, dst_type);
args[6] = lb_emit_conv(p, value_, t_rawptr);
lb_emit_runtime_call(p, "type_assertion_check2", args);
return lb_emit_load(p, lb_emit_struct_ep(p, v.addr, 0));
}
@@ -706,6 +711,13 @@ lbAddr lb_emit_any_cast_addr(lbProcedure *p, lbValue value, Type *type, TokenPos
}
Type *dst_type = tuple->Tuple.variables[0]->type;
if ((p->state_flags & StateFlag_no_type_assert) != 0 && !is_tuple) {
// just do a bit cast of the data at the front
lbValue ptr = lb_emit_struct_ev(p, value, 0);
ptr = lb_emit_conv(p, ptr, alloc_type_pointer(type));
return lb_addr(ptr);
}
lbAddr v = lb_add_local_generated(p, tuple, true);
lbValue dst_typeid = lb_typeid(m, dst_type);
@@ -731,7 +743,6 @@ lbAddr lb_emit_any_cast_addr(lbProcedure *p, lbValue value, Type *type, TokenPos
if (!is_tuple) {
// NOTE(bill): Panic on invalid conversion
lbValue ok = lb_emit_load(p, lb_emit_struct_ep(p, v.addr, 1));
auto args = array_make<lbValue>(permanent_allocator(), 7);
args[0] = ok;