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.cursor implementation (#12637)

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* cursors: first implementation
* added currently failing test
* .cursor works for doubly linked lists
* make -d:useMalloc work again
* added code to nil out refs in a destructor
* it's now called --gc:arc
* renderer.nim: render nkBreakState properly
* make simple closure iterators work without leaking
This commit is contained in:
Andreas Rumpf 2019-11-12 15:05:36 +01:00 • committed by GitHub
commit dfb020b174
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12 changed files with 106 additions and 36 deletions
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22
compiler/commands.nim
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@ -224,15 +224,15 @@ proc testCompileOptionArg*(conf: ConfigRef; switch, arg: string, info: TLineInfo
case switch.normalize
of "gc":
case arg.normalize
of "boehm": result = conf.selectedGC == gcBoehm
of "refc": result = conf.selectedGC == gcRefc
of "v2": result = false
of "boehm": result = conf.selectedGC == gcBoehm
of "refc": result = conf.selectedGC == gcRefc
of "v2": result = false
of "markandsweep": result = conf.selectedGC == gcMarkAndSweep
of "generational": result = false
of "destructors": result = conf.selectedGC == gcDestructors
of "hooks": result = conf.selectedGC == gcHooks
of "go": result = conf.selectedGC == gcGo
of "none": result = conf.selectedGC == gcNone
of "destructors", "arc": result = conf.selectedGC == gcDestructors
of "hooks": result = conf.selectedGC == gcHooks
of "go": result = conf.selectedGC == gcGo
of "none": result = conf.selectedGC == gcNone
of "stack", "regions": result = conf.selectedGC == gcRegions
else: localError(conf, info, errNoneBoehmRefcExpectedButXFound % arg)
of "opt":
@ -244,9 +244,9 @@ proc testCompileOptionArg*(conf: ConfigRef; switch, arg: string, info: TLineInfo
of "verbosity": result = $conf.verbosity == arg
of "app":
case arg.normalize
of "gui": result = contains(conf.globalOptions, optGenGuiApp)
of "console": result = not contains(conf.globalOptions, optGenGuiApp)
of "lib": result = contains(conf.globalOptions, optGenDynLib) and
of "gui": result = contains(conf.globalOptions, optGenGuiApp)
of "console": result = not contains(conf.globalOptions, optGenGuiApp)
of "lib": result = contains(conf.globalOptions, optGenDynLib) and
not contains(conf.globalOptions, optGenGuiApp)
of "staticlib": result = contains(conf.globalOptions, optGenStaticLib) and
not contains(conf.globalOptions, optGenGuiApp)
@ -453,7 +453,7 @@ proc processSwitch*(switch, arg: string, pass: TCmdLinePass, info: TLineInfo;
of "markandsweep":
conf.selectedGC = gcMarkAndSweep
defineSymbol(conf.symbols, "gcmarkandsweep")
of "destructors":
of "destructors", "arc":
conf.selectedGC = gcDestructors
defineSymbol(conf.symbols, "gcdestructors")
incl conf.globalOptions, optSeqDestructors