digitalmars.D.internals - UDA segfaults compiler
Hello D people, I found a segmentation fault which I can reproduce with `dmd` and `ldc2`. The attack code is simple: ``` alias getOne = (0) function int () => 1; ``` It works without the UDA but segfaults with it. I found it because I wanted to have user-defined attributes to the return values of functions. I can't put the UDA after `function` so I put it before. I believe, this is a forgotton corner case or something because the compiler tells me, UDAs are not allowed in alias definitions.
Jul 17 2021
On Saturday, 17 July 2021 at 16:33:54 UTC, Elmar wrote:Hello D people, I found a segmentation fault which I can reproduce with `dmd` and `ldc2`. The attack code is simple: ``` alias getOne = (0) function int () => 1; ``` It works without the UDA but segfaults with it. I found it because I wanted to have user-defined attributes to the return values of functions. I can't put the UDA after `function` so I put it before. I believe, this is a forgotton corner case or something because the compiler tells me, UDAs are not allowed in alias definitions.This is an assertion failure in the parser, [reported here](https://issues.dlang.org/show_bug.cgi?id=22127). The code you write should not compile because the FunctionLiteral rule does not include the UserDefinedAttributes one.
Jul 18 2021
Elmar <chrehme gmx.de> On Sunday, 18 July 2021 at 17:37:52 UTC, Basile B. wrote:On Saturday, 17 July 2021 at 16:33:54 UTC, Elmar wrote:Thank you very much for clarification :-) ! I figured out UDAs are supposed to be attached to symbols only and because of compile-time staticness they can only be passed to a function via an alias-parameter but can't be passed to an op-function or constructor unfortunately. The deprecated dual-context makes it harder to pass them to methods and some other functions. Thank you for adding the report!Hello D people, I found a segmentation fault which I can reproduce with `dmd` and `ldc2`. The attack code is simple: ``` alias getOne = (0) function int () => 1; ``` It works without the UDA but segfaults with it. I found it because I wanted to have user-defined attributes to the return values of functions. I can't put the UDA after `function` so I put it before. I believe, this is a forgotton corner case or something because the compiler tells me, UDAs are not allowed in alias definitions.This is an assertion failure in the parser, [reported here](https://issues.dlang.org/show_bug.cgi?id=22127). The code you write should not compile because the FunctionLiteral rule does not include the UserDefinedAttributes one.
Jul 18 2021