diff --git a/src/ir.cpp b/src/ir.cpp index e79235830c94..b1fd7104ea94 100644 --- a/src/ir.cpp +++ b/src/ir.cpp @@ -8830,7 +8830,8 @@ static IrInstruction *ir_analyze_cast(IrAnalyze *ira, IrInstruction *source_inst } } else if (wanted_child_type->id == TypeTableEntryIdPointer && wanted_child_type->data.pointer.is_const && - is_container(actual_type)) { + (actual_type->id == TypeTableEntryIdPointer || is_container(actual_type))) + { IrInstruction *cast1 = ir_analyze_cast(ira, source_instr, wanted_child_type, value); if (type_is_invalid(cast1->value.type)) return ira->codegen->invalid_instruction; diff --git a/test/cases/cast.zig b/test/cases/cast.zig index dabf97a799cb..d2671680c8b5 100644 --- a/test/cases/cast.zig +++ b/test/cases/cast.zig @@ -103,6 +103,37 @@ const Enum = enum { } }; +test "implicitly cast indirect pointer to maybe-indirect pointer" { + const S = struct { + const Self = this; + x: u8, + fn constConst(p: &const &const Self) u8 { + return (*p).x; + } + fn maybeConstConst(p: ?&const &const Self) u8 { + return (*??p).x; + } + fn constConstConst(p: &const &const &const Self) u8 { + return (**p).x; + } + fn maybeConstConstConst(p: ?&const &const &const Self) u8 { + return (**??p).x; + } + }; + const s = S { .x = 42 }; + const p = &s; + const q = &p; + const r = &q; + assert(42 == S.constConst(p)); + assert(42 == S.constConst(q)); + assert(42 == S.maybeConstConst(p)); + assert(42 == S.maybeConstConst(q)); + assert(42 == S.constConstConst(q)); + assert(42 == S.constConstConst(r)); + assert(42 == S.maybeConstConstConst(q)); + assert(42 == S.maybeConstConstConst(r)); +} + test "explicit cast from integer to error type" { testCastIntToErr(error.ItBroke); comptime testCastIntToErr(error.ItBroke);