Compiler error on a generic object with an array field

[ZoomRmc]

Compiler error on a generic object with an array field.

Can't use int for L in the following example, so passed a range to satisfy the compiler:

Example

type Foo[L, T] = object
  data: array[L, T]

let p = Foo[0..2, char](data:['a', 'b', 'c'])
#let q = Foo[3, char](data:['a', 'b', 'c']) # type mismatch error

Current Output

Error: internal error: invalid kind for lastOrd(tyObject)
Traceback (most recent call last)
/home/user/.choosenim/toolchains/nim-#devel/compiler/nim.nim(125) nim
/home/user/.choosenim/toolchains/nim-#devel/compiler/nim.nim(84) handleCmdLine
/home/user/.choosenim/toolchains/nim-#devel/compiler/main.nim(274) mainCommand
/home/user/.choosenim/toolchains/nim-#devel/compiler/main.nim(244) compileToBackend
/home/user/.choosenim/toolchains/nim-#devel/compiler/main.nim(100) commandCompileToC
/home/user/.choosenim/toolchains/nim-#devel/compiler/modules.nim(178) compileProject
/home/user/.choosenim/toolchains/nim-#devel/compiler/modules.nim(97) compileModule
/home/user/.choosenim/toolchains/nim-#devel/compiler/passes.nim(180) processModule
/home/user/.choosenim/toolchains/nim-#devel/compiler/passes.nim(73) processTopLevelStmt
/home/user/.choosenim/toolchains/nim-#devel/compiler/sem.nim(627) myProcess
/home/user/.choosenim/toolchains/nim-#devel/compiler/sem.nim(595) semStmtAndGenerateGenerics
/home/user/.choosenim/toolchains/nim-#devel/compiler/semstmts.nim(2310) semStmt
/home/user/.choosenim/toolchains/nim-#devel/compiler/semexprs.nim(1057) semExprNoType
/home/user/.choosenim/toolchains/nim-#devel/compiler/semexprs.nim(2935) semExpr
/home/user/.choosenim/toolchains/nim-#devel/compiler/semstmts.nim(2252) semStmtList
/home/user/.choosenim/toolchains/nim-#devel/compiler/semexprs.nim(2938) semExpr
/home/user/.choosenim/toolchains/nim-#devel/compiler/semstmts.nim(515) semVarOrLet
/home/user/.choosenim/toolchains/nim-#devel/compiler/semexprs.nim(86) semExprWithType
/home/user/.choosenim/toolchains/nim-#devel/compiler/semexprs.nim(70) semExprCheck
/home/user/.choosenim/toolchains/nim-#devel/compiler/semexprs.nim(2901) semExpr
/home/user/.choosenim/toolchains/nim-#devel/compiler/semobjconstr.nim(401) semObjConstr
/home/user/.choosenim/toolchains/nim-#devel/compiler/semobjconstr.nim(334) semConstructTypeAux
/home/user/.choosenim/toolchains/nim-#devel/compiler/semobjconstr.nim(167) semConstructFields
/home/user/.choosenim/toolchains/nim-#devel/compiler/semobjconstr.nim(322) semConstructFields
/home/user/.choosenim/toolchains/nim-#devel/compiler/semobjconstr.nim(82) semConstrField
/home/user/.choosenim/toolchains/nim-#devel/compiler/sem.nim(94) fitNode
/home/user/.choosenim/toolchains/nim-#devel/compiler/semcall.nim(477) indexTypesMatch
/home/user/.choosenim/toolchains/nim-#devel/compiler/sigmatch.nim(2207) paramTypesMatch
/home/user/.choosenim/toolchains/nim-#devel/compiler/sigmatch.nim(2051) paramTypesMatchAux
/home/user/.choosenim/toolchains/nim-#devel/compiler/sigmatch.nim(1232) typeRel
/home/user/.choosenim/toolchains/nim-#devel/compiler/types.nim(847) lengthOrd
/home/user/.choosenim/toolchains/nim-#devel/compiler/types.nim(800) lastOrd
/home/user/.choosenim/toolchains/nim-#devel/compiler/types.nim(808) lastOrd
/home/user/.choosenim/toolchains/nim-#devel/compiler/msgs.nim(600) internalErrorImpl
/home/user/.choosenim/toolchains/nim-#devel/compiler/msgs.nim(556) liMessage
/home/user/.choosenim/toolchains/nim-#devel/compiler/msgs.nim(414) handleError
/home/user/.choosenim/toolchains/nim-#devel/compiler/msgs.nim(403) quit
FAILURE

Nim Compiler Version 1.5.1 [Linux: amd64]
Compiled at 2021-06-07
Copyright (c) 2006-2021 by Andreas Rumpf

git hash: e7816a3e77ab0f821d66667dfc448f1898199f59
active boot switches: -d:release

Possibly related to #17423?

[metagn]

Same issue as #23204, shouldn't crash anymore but gives another error, the issue is 3 becomes the type int

[metagn]

Now the 0..2 version doesn't work because it becomes a Slice[int] but range[0..2] works