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allow implicit cast from *[N]T to ?[*]T (#1398)

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* allow implicit cast from *[N]T to ?[*]T
This commit is contained in:
Raul Leal
2018-08-22 18:12:08 +01:00
committed by Andrew Kelley
parent 3d780cf2ef
commit 87b10400c2
2 changed files with 24 additions and 0 deletions
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13
src/ir.cpp
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@@ -10697,6 +10697,19 @@ static IrInstruction *ir_analyze_cast(IrAnalyze *ira, IrInstruction *source_inst
return ira->codegen->invalid_instruction;
return cast2;
} else if (
wanted_child_type->id == TypeTableEntryIdPointer &&
wanted_child_type->data.pointer.ptr_len == PtrLenUnknown &&
actual_type->id == TypeTableEntryIdPointer &&
actual_type->data.pointer.ptr_len == PtrLenSingle &&
actual_type->data.pointer.child_type->id == TypeTableEntryIdArray &&
actual_type->data.pointer.alignment >= wanted_child_type->data.pointer.alignment &&
types_match_const_cast_only(ira, wanted_child_type->data.pointer.child_type,
actual_type->data.pointer.child_type->data.array.child_type, source_node,
!wanted_child_type->data.pointer.is_const).id == ConstCastResultIdOk)
{
IrInstruction *cast1 = ir_resolve_ptr_of_array_to_slice(ira, source_instr, value, wanted_child_type);
return ir_analyze_maybe_wrap(ira, source_instr, cast1, wanted_type);
}
}