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Close #17509
Current knowledge:
- delaying cache fixes the issue
- changing return of `if inst.len < key.len:` in `searchInstTypes` to
`continue` fixes the issue. With return the broken types are also cached
over and over
Related issues are completely unaffected as of now, so there must be
something deeper.
I am also still trying to find the true cause, so feel free to ignore
for now
---------
Co-authored-by: SirOlaf <>
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Move `symFromType` and `symNodeFromType` from `sem`, and `isSelf` and
`makeTypeDesc` from `concepts` into `semdata`.
`makeTypeDesc` was moved out from semdata [when the `concepts` module
was
added](https://github.com/nim-lang/Nim/commit/6278b5d89af38e90aa30cfc4c217a2f4b1323339),
so its old position might have been intended. If not, `isSelf` can also
go in `ast`.
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reverts #22642, reopens #22639, closes #22646, refs #22650, refs
https://github.com/alaviss/union/issues/51, refs #22652
The fallout is too much from #22642, we can come back to it if we can
account for all the affected code.
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fixes #22639
A `tyGenericInst` has its last son as the instantiated body of the
original generic type. However this type keeps its original `sym` field
from the original generic types, which means the sym's type is
uninstantiated. This causes problems in the implementation of `getType`,
where it uses the `sym` fields of types to represent them in AST, the
relevant example for the issue being
[here](https://github.com/nim-lang/Nim/blob/d13aab50cf465a7f2edf9c37a4fa30e128892e72/compiler/vmdeps.nim#L191)
called from
[here](https://github.com/nim-lang/Nim/blob/d13aab50cf465a7f2edf9c37a4fa30e128892e72/compiler/vmdeps.nim#L143).
To fix this, create a new symbol from the original symbol for the
instantiated body during the creation of `tyGenericInst`s with the
appropriate type. Normally `replaceTypeVarsS` would be used for this,
but here it seems to cause some recursion issue (immediately gives an
error like "cannot instantiate HSlice[T, U]"), so we directly set the
symbol's type to the instantiated type.
Avoiding recursion means we also cannot use `replaceTypeVarsN` for the
symbol AST, and the symbol not having any AST crashes the implementation
of `getType` again
[here](https://github.com/nim-lang/Nim/blob/d13aab50cf465a7f2edf9c37a4fa30e128892e72/compiler/vmdeps.nim#L167),
so the symbol AST is set to the original generic type AST for now which
is what it was before anyway.
Not sure about this because not sure why the recursion issue is
happening, putting it at the end of the proc doesn't help either. Also
not sure if the `cl.owner != nil and s.owner != cl.owner` condition from
`replaceTypeVarsS` is relevant here. This might also break some code if
it depended on the original generic type symbol being given.
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Ping @narimiran please backport to the 2.0 line.
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* unpublic the sons field of PType
* tiny fixes
* fixes an omittance
* fixes IC
* fixes
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(#20683)
* fix #18823 Passing Natural to bitops.BitsRange[T] parameter in generic proc is compile error
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* wip; use strictdefs for compiler
* checkpoint
* complete the chores
* more fixes
* first phase cleanup
* Update compiler/bitsets.nim
* cleanup
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* sacrifice "tgenericshardcases" for working statics
* legacy switch for CI, maybe experimental later
* convert to experimental
* apparently untyped needs the experimental switch
* try special case call semcheck
* try fix
* fix compilation
* final cleanup, not experimental, make `when` work
* remove last needed use of untyped
* fix unused warning in test
* remove untyped feature
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(#21667)
* refactoring in preparation for better, simpler name mangling that works with IC flawlessly
* use new disamb field
* see if this makes tests green
* make tests green again
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compiler" (#21028)
Revert "fixes #20883; Unspecified generic on default value segfaults the compiler (#20917)"
This reverts commit 10b6e4f5b4a119a8fa42f82a24ae7e4b08b2c103.
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(#20917)
test CI
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has been generated by the compiler (#20377)
Fixes #20348
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* fixed #18841
* Added test
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* ORC: improvements
* ORC: fix .acyclic annotation for ref objects
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* fixes #15210 [backport:1.2]
* make tests green
* make ordinal work
* makes Swapable test compile
* make Indexable example work
* concepts: 'self' is now 'Self'
* concepts: make Dictionary example compile
* document the new concept implementation
* concepts: make typeDesc work properly
* concepts: allow documentation comments (d'oh)
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* basic stability improvements; refs nimsuggest
* fixed dot operator recursive loop & macro suggest
* hacky fix for run away dot operator sem check
Committing this mostly to make the issue more clear. Perhaps get better
feedback.
* semExprWithType seems like a better place to check
* fixed error messages const case expressions
* Clean-up test
* stopped the dot operator madness
No longer get infinite recursion when seming broken code with a dot
operator macro like in jsffi.
Co-authored-by: Araq <rumpf_a@web.de>
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* removed dead code
* we need even more laziness for the generic caches
* make it bootstrap on older Nims
* wrote more deserialization code
* IC: replay required methods information
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* IC: dead code elimination pass
* preparations for a different codegen strategy
* added documentation to the newly written code
* IC: backend code
* IC: backend adjustments
* optimized the compiler a bit
* IC: yet another massive refactoring
* fixes regressions
* cleanups
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* code cleanups
* refactorings for IC
* more refactorings for IC
* IC: attach the 'nil' type to its module
* IC: refactorings and improvements
* IC: progress
* IC: more serialization fixes
* IC: embarrassing omission
* code cleanups
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* reworked ID handling
* the packed AST now has its own ID mechanism
* basic serialization code works
* extract rodfiles to its own module
* rodfiles: store and compare configs
* rodfiles: store dependencies
* store config at the end
* precise dependency tracking
* dependency tracking for rodfiles
* completed loading of PSym, PType, etc
* removed dead code
* bugfix: do not realloc seqs when taking addr into an element
* make IC opt-in for now
* makes tcompilerapi green again
* final cleanups
Co-authored-by: Andy Davidoff <github@andy.disruptek.com>
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* refactoring: idents don't need inheritance
* refactoring: adding an IdGenerator (part 1)
* refactoring: adding an IdGenerator (part 2)
* refactoring: adding an IdGenerator (part 3)
* refactoring: adding an IdGenerator (part 4)
* refactoring: adding an IdGenerator (part 5)
* refactoring: adding an IdGenerator (part 5)
* IdGenerator must be a ref type; hello world works again
* make bootstrapping work again
* progress: add back the 'exactReplica' ideas
* added back the missing exactReplica hacks
* make tcompilerapi work again
* make important packages green
* attempt to fix the build for 32 bit machines (probably need a better solution here)
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* Expand hoisted default params in sem
Introduce ast.newTree{I,IT}
Add test for default params in procs
* Cleanup
* Simplify hoist transformation and expand test
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generic type not mentioned in fields (#14709)
* fix #14698 nkRecWhen caused internalAssert in semConstructFields when generic type not mentioned in fields
* address comment
* Update compiler/semtypinst.nim
Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
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The new mechanism can deal with more complex scenarios such as
not nil field appearing in a non-default case object branch or
a field within a generic object that may depend on a when branch.
The commit also plugs another hole: the user is no longer able
to create illegal default values through seq.setLen(N).
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* Cleanup compiler code base
* Unify add calls
* Unify len invocations
* Unify range operators
* Fix oversight
* Remove {.procvar.} pragma
* initCandidate -> newCandidate where reasonable
* Unify safeLen calls
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* Remove sonsLen
* Use Indexable
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