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make finalizers optional

This commit is contained in:
Will Szumski 2015-01-12 16:30:10 +00:00
parent 42ded08c7f
commit f153c3f1db
1 changed files with 32 additions and 13 deletions
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45
Nim/NimQml/NimQml.nim
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@ -1,6 +1,14 @@
include NimQmlTypes include NimQmlTypes
## NimQml aims to provide binding to the QML for the Nim programming language ## NimQml aims to provide binding to the QML for the Nim programming language
##
## Optional finalizers
## -------------------
## To enable finalizers you must define ``nimqml_use_finalizers`` by passing
## the option, ``-d:nimqml_use_finalizers``, to the Nim compiler. The relevant
## delete method will then be called automatically by the garbage collector.
## Care should be taken when using this approach as there are no guarantees
## when a finalzier will be run, or if, indeed, it will run at all.
type QMetaType* {.pure.} = enum ## \ type QMetaType* {.pure.} = enum ## \
## Qt metatypes values used for specifing the ## Qt metatypes values used for specifing the
@ -34,6 +42,17 @@ proc debugMsg(typeName: string, procName: string, userMessage: string) =
message &= userMessage message &= userMessage
debugMsg(message) debugMsg(message)
template newWithCondFinalizer(variable: expr, finalizer: expr) =
## calls ``new`` but only setting a finalizer when ``nimqml_use_finalizers``
## is defined
{.push warning[user]: off.} # workaround to remove warnings; this won't be needed soon
when defined(nimqml_use_finalizers):
{.pop.}
new(variable, finalizer)
else:
{.pop.}
new(variable)
# QVariant # QVariant
proc dos_qvariant_create(variant: var RawQVariant) {.cdecl, dynlib:"libDOtherSide.so", importc.} proc dos_qvariant_create(variant: var RawQVariant) {.cdecl, dynlib:"libDOtherSide.so", importc.}
proc dos_qvariant_create_int(variant: var RawQVariant, value: cint) {.cdecl, dynlib:"libDOtherSide.so", importc.} proc dos_qvariant_create_int(variant: var RawQVariant, value: cint) {.cdecl, dynlib:"libDOtherSide.so", importc.}
@ -106,42 +125,42 @@ proc delete*(variant: QVariant) =
proc newQVariant*(): QVariant = proc newQVariant*(): QVariant =
## Return a new QVariant ## Return a new QVariant
new(result, delete) newWithCondFinalizer(result, delete)
result.create() result.create()
proc newQVariant*(value: cint): QVariant = proc newQVariant*(value: cint): QVariant =
## Return a new QVariant given a cint ## Return a new QVariant given a cint
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc newQVariant*(value: bool): QVariant = proc newQVariant*(value: bool): QVariant =
## Return a new QVariant given a bool ## Return a new QVariant given a bool
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc newQVariant*(value: string): QVariant = proc newQVariant*(value: string): QVariant =
## Return a new QVariant given a string ## Return a new QVariant given a string
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc newQVariant*(value: QObject): QVariant = proc newQVariant*(value: QObject): QVariant =
## Return a new QVariant given a QObject ## Return a new QVariant given a QObject
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc newQVariant*(value: RawQVariant): QVariant = proc newQVariant*(value: RawQVariant): QVariant =
## Return a new QVariant given a raw QVariant pointer ## Return a new QVariant given a raw QVariant pointer
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc newQVariant*(value: QVariant): QVariant = proc newQVariant*(value: QVariant): QVariant =
## Return a new QVariant given another QVariant ## Return a new QVariant given another QVariant
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc newQVariant*(value: float): QVariant = proc newQVariant*(value: float): QVariant =
## Return a new QVariant given a float ## Return a new QVariant given a float
new(result, delete) newWithCondFinalizer(result, delete)
result.create(value) result.create(value)
proc isNull*(variant: QVariant): bool = proc isNull*(variant: QVariant): bool =
@ -232,7 +251,7 @@ proc delete*(engine: QQmlApplicationEngine) =
proc newQQmlApplicationEngine*(): QQmlApplicationEngine = proc newQQmlApplicationEngine*(): QQmlApplicationEngine =
## Return a new QQmlApplicationEngine ## Return a new QQmlApplicationEngine
new(result, delete) newWithCondFinalizer(result, delete)
result.create() result.create()
# QQmlContext # QQmlContext
@ -270,7 +289,7 @@ proc delete*(application: QApplication) =
proc newQApplication*(): QApplication = proc newQApplication*(): QApplication =
## Return a new QApplication ## Return a new QApplication
new(result, delete) newWithCondFinalizer(result, delete)
result.create() result.create()
# QGuiApplication # QGuiApplication
@ -301,7 +320,7 @@ proc delete*(application: QGuiApplication) =
proc newQGuiApplication*(): QGuiApplication = proc newQGuiApplication*(): QGuiApplication =
## Return a new QApplication ## Return a new QApplication
new(result, delete) newWithCondFinalizer(result, delete)
result.create() result.create()
# QObject # QObject
@ -379,7 +398,7 @@ proc delete*(qobject: QObject) =
proc newQObject*(): QObject = proc newQObject*(): QObject =
## Return a new QObject ## Return a new QObject
new(result, delete) newWithCondFinalizer(result, delete)
result.create() result.create()
proc registerSlot*(qobject: QObject, proc registerSlot*(qobject: QObject,
@ -456,5 +475,5 @@ proc delete(view: QQuickView) =
proc newQQuickView*(): QQuickView = proc newQQuickView*(): QQuickView =
## Return a new QQuickView ## Return a new QQuickView
new(result, delete) newWithCondFinalizer(result, delete)
result.create() result.create()