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more destructor based changes (#10885)

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* mark user defined destructors with sfOverriden to simplify the logic
* refactoring in preparation to merge liftings and generic instantiations for destructors
* ast: introduce nkHiddenTryStmt for destructor generation in order to be able to optimize better the code later on
* renamed 'patterns' switch to 'trmacros' as it was totally misleading before
* destructors: introduce tfCheckedForDestructor flag in preparation of strict =destroy checking
* test for invalid/too late destructor introductions
* liftdestructors: make code robust for nimsuggest
* --newruntime works for hello world again
* newruntime: code generation for closures
This commit is contained in:
Andreas Rumpf 2019-03-23 00:12:05 +01:00 • committed by GitHub
commit bf592c4e94
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39 changed files with 443 additions and 242 deletions
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10
compiler/trees.nim
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@ -120,6 +120,16 @@ proc whichPragma*(n: PNode): TSpecialWord =
let key = if n.kind in nkPragmaCallKinds and n.len > 0: n.sons[0] else: n
if key.kind == nkIdent: result = whichKeyword(key.ident)
proc effectSpec*(n: PNode, effectType: TSpecialWord): PNode =
for i in countup(0, sonsLen(n) - 1):
var it = n.sons[i]
if it.kind == nkExprColonExpr and whichPragma(it) == effectType:
result = it.sons[1]
if result.kind notin {nkCurly, nkBracket}:
result = newNodeI(nkCurly, result.info)
result.add(it.sons[1])
return
proc unnestStmts(n, result: PNode) =
if n.kind == nkStmtList:
for x in items(n): unnestStmts(x, result)