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Expand hoisted default params in sem (#15270)

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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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Clyybber 2020-09-05 22:01:47 +02:00 • committed by GitHub
commit 35ff17410f
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12 changed files with 178 additions and 123 deletions
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compiler/lowerings.nim
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@ -369,14 +369,3 @@ proc genLen*(g: ModuleGraph; n: PNode): PNode =
result[0] = newSymNode(getSysMagic(g, n.info, "len", mLengthSeq))
result[1] = n
proc hoistExpr*(varSection, expr: PNode, name: PIdent, owner: PSym): PSym =
result = newSym(skLet, name, owner, varSection.info, owner.options)
result.flags.incl sfHoisted
result.typ = expr.typ
var varDef = newNodeI(nkIdentDefs, varSection.info, 3)
varDef[0] = newSymNode(result)
varDef[1] = newNodeI(nkEmpty, varSection.info)
varDef[2] = expr
varSection.add varDef