Comments (6)
If this production is in a kernel syntax section (syntax
), that error will not occur. However, then you will get an error that the sort of the production is not of kind kernel. Sorts of kind kernel would be definable in a sorts
section, but it seems that the sorts
section is desugared into context-free sorts
in SDF3, making it impossible to define kernel sorts. Maybe a quick fix would be to have -CF
and -LEX
symbols be of kind kernel.
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Solved by metaborg/sdf@3579ddd. It is possible to define the production without errors as follows:
sorts
Section SectionName Definition
syntax
Section-CF.Section = "section" SectionName-CF LAYOUT?-CF Definition*-CF
There is no checking whether the -CF
sorts are context-free sorts though.
from spoofax-pie.
Okay, previously doing this would give an error because Section-CF
would be a context-free kernel sort declared in a (non-context-free) kernel syntax
section, requiring the section to be changed to context-free syntax
.
from spoofax-pie.
There seems to be a bug where the SDF3->Stratego signature generator fails on LAYOUT?-CF
in those kernel syntax productions, I will have a look at that tomorrow.
from spoofax-pie.
In Spoofax 3 it generates the following Stratego for it:
OpDecl("Section", FunType(
[ ConstType(SortNoArgs("SectionName"))
, OPT(LAYOUT(){OfSort(SORT("TYPE"))}){OfSort(SORT("TYPE"))}
, ConstType(Sort("List", [ConstType(SortNoArgs("Definition"))]))
], ConstType(SortNoArgs("Section"))
))
In Spoofax 2 it seems to be:
OpDecl("Section", FunType(
[ ConstType(SortNoArgs("SectionName"))
, ConstType(Sort("List", [SortNoArgs("Definition")]))
], ConstType(SortNoArgs("Section"))
))
Spoofax 2 is correct. Apparently they are not using the same version of the signature generator?
from spoofax-pie.
Should be fixed metaborg/sdf@d88c75a (untested)
from spoofax-pie.
Related Issues (20)
- IllegalStateException: The root project is not yet available for build HOT 1
- Support Gradle 7 HOT 1
- Invalid AST shape error when using strings for brackets HOT 1
- Having no SDF3 files in the main source directory results in compilation issues in generated files HOT 2
- Forgetting to specify `context-free start-symbols` in SDF3 leads to unclear parsing errors HOT 1
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- Old generated signatures persist even after source file is deleted/renamed HOT 1
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- `ImmutableSeparatorRepr` not serializable
- Duplicate error when using Gradle 7.1+
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