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Fix Issue 21093 - [ICE] AssertError@dmd/optimize.d(691): Assertion failure

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Boris Carvajal 2021-11-08 03:03:33 -03:00 • committed by The Dlang Bot
parent 904fde46c4
commit d893291693
2 changed files with 58 additions and 0 deletions
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2
src/dmd/optimize.d
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@ -697,6 +697,8 @@ Expression Expression_optimize(Expression e, int result, bool keepLvalue)
// See if we can remove an unnecessary cast
ClassDeclaration cdfrom = e.e1.type.isClassHandle();
ClassDeclaration cdto = e.type.isClassHandle();
if (cdfrom.errors || cdto.errors)
return error();
if (cdto == ClassDeclaration.object && !cdfrom.isInterfaceDeclaration())
goto L1; // can always convert a class to Object
// Need to determine correct offset before optimizing away the cast.

56
test/fail_compilation/test21093.d Normal file
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@ -0,0 +1,56 @@
// https://issues.dlang.org/show_bug.cgi?id=21093
/*
TEST_OUTPUT:
---
fail_compilation/test21093.d(24): Error: function `test21093.LocalTime.hasDST` does not override any function
fail_compilation/test21093.d(32): Error: class `test21093.LocalTime2` cannot implicitly generate a default constructor when base class `test21093.TimeZone2` is missing a default constructor
fail_compilation/test21093.d(44): Error: function `test21093.LocalTime3.string` does not override any function
fail_compilation/test21093.d(55): Error: cannot implicitly override base class method `test21093.TimeZone4.hasDST` with `test21093.LocalTime4.hasDST`; add `override` attribute
---
*/
void fromUnixTime(immutable TimeZone tz = LocalTime()) { }
void fromUnixTime(immutable TimeZone2 tz = LocalTime2()) { }
void fromUnixTime(immutable TimeZone3 tz = LocalTime3()) { }
void fromUnixTime(immutable TimeZone4 tz = LocalTime4()) { }
class TimeZone
{
}
class LocalTime : TimeZone
{
static immutable(LocalTime) opCall() { }
override hasDST() { }
}
class TimeZone2
{
this(string) { }
}
class LocalTime2 : TimeZone2
{
static immutable(LocalTime2) opCall() { }
}
class TimeZone3
{
}
class LocalTime3 : TimeZone3
{
static immutable(LocalTime3) opCall() { }
override string () { }
}
class TimeZone4
{
bool hasDST();
}
class LocalTime4 : TimeZone4
{
static immutable(LocalTime4) opCall() { }
bool hasDST() { }
}