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new-style concepts implementation, WIP (#15251)

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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)
This commit is contained in:
Andreas Rumpf 2021-02-24 13:17:33 +01:00 • committed by GitHub
commit 6278b5d89a
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19 changed files with 528 additions and 59 deletions
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4
compiler/semtypinst.nim
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@ -12,6 +12,8 @@
import ast, astalgo, msgs, types, magicsys, semdata, renderer, options,
lineinfos, modulegraphs
from concepts import makeTypeDesc
const tfInstClearedFlags = {tfHasMeta, tfUnresolved}
proc checkPartialConstructedType(conf: ConfigRef; info: TLineInfo, t: PType) =
@ -505,7 +507,7 @@ proc replaceTypeVarsTAux(cl: var TReplTypeVars, t: PType): PType =
result = t
if t == nil: return
if t.kind in {tyStatic, tyGenericParam} + tyTypeClasses:
if t.kind in {tyStatic, tyGenericParam, tyConcept} + tyTypeClasses:
let lookup = cl.typeMap.lookup(t)
if lookup != nil: return lookup