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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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compiler/semmagic.nim
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@ -428,4 +428,9 @@ proc magicsAfterOverloadResolution(c: PContext, n: PNode,
if n[^1].kind == nkSym and n[^1].sym.kind notin {skProc, skFunc}:
localError(c.config, n.info, "finalizer must be a direct reference to a procedure")
result = n
of mDestroy:
result = n
let t = n[1].typ.skipTypes(abstractVar)
if t.destructor != nil:
result.sons[0] = newSymNode(t.destructor)
else: result = n