3.1 lua补丁基础语法

创建对象不需要alloc,直接init，调用方法使用冒号。例如:

local view = UIView:init()

获取OC属性使用方法，不能使用’点语法’，例如:

view:backgroundColor()

设置OC属性使用setXXX方法，不能直接‘＝’复制，例如:

view:setBackgroundColor(UIColor:blueColor())

BOOL值使用true和false，多个参数的方法使用下划线拼接，括号里依次传递参数

UIApplication:sharedApplication():setStatusBarHidden_animated(true, false)
UIAlertView:initWithTitle_message_delegate("title", "message", nil)

注意：lua语法中只有nil和false为假，其它数字0，空字符串都为真

如何创建\新增一个UIViewController，例如:

waxClass{"MyController", UIViewController}

function init(self)
  —super很特殊，需要用dot操作
  self.super:initWithNibName_bundle("MyControllerView.xib", nil)
  return self
end

function viewDidLoad(self)
  -- 逻辑处理
end

新增类，并声明协议，例如：

waxClass{"MyClass", NSObject, protocols = {"UITableViewDelegate", "UITableViewDataSource”}}

替换已经存在的class的方法

可不需要声明父类，方法里第一个参数为self，指定需替换的方法,例如:

waxClass{"MyController"}
function viewDidLoad(self)
  --
end

替换类的category方法

与替换已经存在的class的方法一致，例如:

//OC代码
@interface TBSDKMTOPServer (Async4j)
- (void)startAsync4jRequest;
@end
--Lua代码
waxClass{"TBSDKMTOPServer"}
function startAsync4jRequest(self)
  --
end

调用原有的方法，使用ORIG前缀，例如：

waxClass{"MyController"}
function viewDidLoad(self)
  — 前置逻辑

     self:ORIGviewDidLoad()--不要传self
  — 后置逻辑

end

hook带下划线的方法，可使用 ‘UNDERxLINE’ 代替 ‘_’

--OC - (void)_prefixA:(NSString *)a _b:(NSString *)b
function UNDERxLINEprefixA_UNDERxLINEb(self, a, b)
    self:ORIGUNDERxLINEprefixA_UNDERxLINEb(TEST_VALUE_STRING, TEST_VALUE_STRING)
end

--OC - (id)__aa_bb_:(NSString *)v1 _cc__dd_ :(NSString *)v2 ___ee___f___:(NSString *)v3
function UNDERxLINEUNDERxLINEaaUNDERxLINEbbUNDERxLINE_UNDERxLINEccUNDERxLINEUNDERxLINEddUNDERxLINE_UNDERxLINEUNDERxLINEUNDERxLINEeeUNDERxLINEUNDERxLINEUNDERxLINEfUNDERxLINEUNDERxLINEUNDERxLINE(self, v1, v2, v3) return self:ORIGUNDERxLINEUNDERxLINEaaUNDERxLINEbbUNDERxLINE_UNDERxLINEccUNDERxLINEUNDERxLINEddUNDERxLINE_UNDERxLINEUNDERxLINEUNDERxLINEeeUNDERxLINEUNDERxLINEUNDERxLINEfUNDERxLINEUNDERxLINEUNDERxLINE("abc", "efg", "hij")
end

调用带下划线的方法，例如：

由于wax按下划线分割方法,所以不能直接调用

--有返回值用此方法(如果无返回值用此方法会导致在32位机器crash)
local res = self:performSelector_withObject("_xxxFunction", nil);
self:UNDERxLINExxxFunction();

--无返回值用此方法
self:performSelector_withObject_afterDelay("doRateItem_Function", nil, 0);
self:doRateItemUNDERxLINEFunction()

@selector直接使用字符串，例如：

if self:respondsToSelector("funca:b:c:") then
     self:funca_b_c(xxx, xx, xx)
end

新增方法（返回值和参数均为id类型）

function  myLostMethod(self)
     print("myLostMethod");
    return nil
end
function  myLostMethod_other(self, a, b)
     print("myLostMethod_other");
     return nil
end

新增属性properity

--方式1：直接使用lua自带的新增属性功能，但是只能被lua使用
self.xx = "abcd"
print(self.xx)

--方式2：模拟OC的增加属性功能，可在OC访问
function xxx(self)
return self._xxx
end
function setXxx(self, xxx)
self._xxx = xxx
end

创建struct，例如:

wax.struct.create("MyRect", "ffff", "x", "y", "width", "height”)
local rect = MyRect(1, 2, 3, 4)
    print(rect.x) --> 1
    rect.x = 200
    print(rect.x) --> 200
注意这些struct已经内置可直接使用,不要创建:CGSize,CGPoint,UIEdgeInsets,CGRect,NSRange,CLLocationCoordinate2D,   
MKCoordinateSpan,MKCoordinateRegion,CGAffineTransform,UIOffset

CGRect，CGSize，CGPoint使用：

local size = CGSize(1, 2)
local frame = CGRect(1, 2, 3, 4)
self:animateLabel():setFrame(frame)
size = CGSize(frame.width, frame.height)
local point = CGPoint(frame.x, frame.y)

--OC CGFloat width ＝ [UIScreen mainScreen].bounds.size.width；
local width ＝ UIScreen:mainScreen():bounds().width
CGSize,CGPoint,UIEdgeInsets,CGRect,NSRange,CLLocationCoordinate2D,MKCoordinateSpan,MKCoordinateRegion,CGAffineTransform,UIOffset 使用时都不需要加Make, 如UIEdgeInsets(1, 2, 3, 4)

Const常量

不能直接使用, 如 UIKIT_EXTERN NSString *const UIApplicationDidBecomeActiveNotification; 需要你先在OC代码中打印其内容, 然后在lua中使用实际值.

Enum使用

wax已内置大部分系统的enum. 此文件里定义的都可以直接用,例如:

UIButton:buttonWithType(UIButtonTypeCustom)
UITableView:initWithFrame_style(CGRect(0, 0, 100, 100), UITableViewStylePlain);

自己写的enum则要么预先定义,要么写实际值.

typedef enum : NSUInteger {
    MyEnumValueA=1,
    MyEnumValueB=2,
    MyEnumValueC=3,
} MyEnum;

lua使用:

local MyEnumValueA=1,
self:xxx(MyEnumValueA)
self:xxx(2);--MyEnumValueB

宏定义：

宏定义define需要还原成实际的代码并翻译成Lua，例如:

//OC
#define XXX 1
#define YYY 2

-- lua
local XXX = 1
self:xxx(XXX) --或者self:xxx(1)

local YYY = 2
self:yyy(YYY) --或者self:yyy(2)

lua对象转换为OC对象，使用toobjc，例如：

local testString = "Hello lua!"
local bigFont = UIFont:boldSystemFontOfSize(30)
local size = toobjc(testString):sizeWithFont(bigFont)
puts(size)

lua或者OC对象转换为字符串，使用tostring，例如：

local num = 123
local str = tostring(num)
打印日志
print("hello world")
print(tostring(xxx))

调用类方法

类方法
//oc调用类方法
[UT commitEvent:123 arg1:@"456" arg2:@"789"];
--lua调用类方法
UT:commitEvent_arg1_arg2("123", "456", "789");

--lua hook类方法(与实例方法一样)
waxClass{"UT"}
function commitEvent_arg1_arg2(self, event, arg1, arg2)
--xxx
self:ORIGcommitEvent_arg1_arg2(event, arg1, arg2)
end

字符串使用

lua中返回的字符串均为lua string, 不能直接调用NSString的方法. 否则会报nil value错误, 不要用stringWithFormat, 例如:

//lua
local x = str:length();
错误:(string) '[string "waxClass{"AViewController"}..."]:11: attempt to call method 'length' (a nil value)' 

 if not tempDeviceID:isEqualToString(self:deviceID()) then 
end
错误: (string) '[string "waxClass{"AViewController"}..."]:16: attempt to call method 'isEqualToString' (a nil value)'

1.正确使用方式一：用lua的字符串操作

local x = string.len(str);
 if not tempDeviceID == self:deviceID() then 
end

string1 = "Lua"
string2 = "Tutorial"
number1 = 10
number2 = 20
--拼接
local s = string1 .. " abc " .. string2
-- 基本字符串格式化
print(string.format("基本格式化 %s %s",string1,string2))
-- 日期格式化
date = 2; month = 1; year = 2014
print(string.format("日期格式化 %02d/%02d/%03d", date, month, year))
-- 十进制格式化
print(string.format("%.4f",1/3))

2.正确使用方式二：将lua字符串转换成OC NSString对象，然后再调用NSString的OC方法

local x = toobjc(str):length();
 if not toobjc(tempDeviceID):isEqualToString(self:deviceID()) then 
end

其它使用

NSString *x = NSStringFromClass(“TestVC”)用local x = self:class():description() 代替

3.2 NSArray NSDictonary在lua中的使用

NSArray、NSDictionary在lua中并不能像普通对象一样使用，因为他们会被wax转换成table，所以取而代之的是在lua中使用table来实现这两者的功能。

不能对Array、Dictionary初始化

在lua脚本里不能对Array、Dictionary进行初始化，如下用法都会造成crash

NSMutableArray:init()

NSMutableArray:arrayWithObjects("1","2")

NSMutableDictionary:init()

NSMutableDictionary:dictionaryWithObjectsAndKeys("v1","k1")

统一使用lua的table，当你用过之后会发现他更灵活方便

lua table

table类型实现了关联数组，不仅可以通过整数来索引它，还可以使用字符串或其它类型的值（除了nil）来索引它。此外，table没有固定的大小，可以动态得添加任意数量的元素到一个table中。
table可以简单实现OC的Dictionary和Array功能

实现Array的功能

初始化：

local array = {"a", "b", "c"}

下标访问（注意lua的数组下标都是从1开始！）：

print(array[1])// 数组越界呢?返回nil

添加元素:

table.insert(array, "d")--末尾添加
table.insert(array, 2, "e")--插入到第二个位置

删除元素：

table.remove(array)--删除末尾元素
table.remove(array, 2)--删除第二个元素

遍历:

for i = 1, #array do  
    print(array[i])  
end  
for i, v in pairs(array) do --i为下标
    print(v)  
end

排序：

table.sort(array)

function cmp( a, b)
    return a > b
end
table.sort(array, cmp)--指定排序方法

实现Dictionary的功能

初始化（注意key不需要“”！）

local dict = {}
local dict = {k1="v1", k2="v2"}

--下标访问（注意key需要“”！）
print(dict["k1"])
print(dict.k1)

添加元素:

dict["k3"] = "v3"
dict.k4="v4"
local x = "xx"
dict[x] = "yy"

删除元素：

dict["k1"] = nil
dict.k2 = nil

遍历:

for k, v in pairs(dict) do 
    print(k .. " : " .. v)
end

取出key排序：

local keyArray = {}
for k in pairs(dict) do
    table.insert(keyArray, k)
end
table.sort(keyArray)

function cmp( a, b)
    return a > b
end
table.sort(keyArray, cmp)

table互转Array、Dictionary

假设有三个属性

@interface TestTableVC ()
@property (nonatomic, strong) NSMutableDictionary *muteDict;
@property (nonatomic, strong) NSMutableArray *muteArray;
@property (nonatomic, strong) NSMutableDictionary *viewDict;
@end

获取Array、Dictionary对象调用其方法会直接crash

self:muteDict():objectForKey("k1")
self:muteArray():objectAtIndex(1)

attempt to call method 'objectForKey' (a nil value)

原因是获取到的对象已经转换成table，而table没有这些方法。
要想使用OC的方法可以先通过toobjc将table对象转换成OC对象，然后再调用方法。

toobjc(self:muteDict()):objectForKey("k1")
toobjc(self:muteArray()):objectAtIndex(1)

改变Array、Dictionary属性的值

转换成OC对象后就可以改变属性的值吗？比如:

toobjc(self:muteDict()):setObject_forKey("v11", "k1")
print(self:muteDict()["k1"])

“k1”对应的值还是“v1”，因为调用self:muteDict()时会得到一个临时的table变量，即使转换成Dictionary再setObject_forKey也是改变的临时变量的值，这种情况先将table改变值，再set回去，wax会自动将table再转换成Dictionary

local muteDict = self:muteDict()
muteDict["k1"] = "v11"
self:setMuteDict(muteDict)
print(self:muteDict()["k1"])

注意元素为0的情况，看此例子

local updateDict = AliNavigatorUtil:updateDictForUsertrack(urlActionRequest);
viewController:setUpdateArgs(updateDict);
viewController:setUtArgs(updateDict);

当返回的updateDict元素为0时,viewController:setUpdateArgs将会得到NSArray而不是NSDictionary. 后续当做字典使用将会造成crash.
原因是wax判断将lua table转换为NSDictionary的条件lua table的元素非空且第一个key不是数字. 所以当lua table里的元素为空时,就当做了数组NSArray. 解决办法为当字典为空时给他加一个没意义的key-value.

local updateDict = AliNavigatorUtil:updateDictForUsertrack(urlActionRequest);
local count = 0
for _ in pairs(trackParam) do count = count + 1 end 
if updateDict ~= nil and count == 0 then
   updateDict = {k="v"};--无key,value时会被判定位数组
  end
viewController:setUpdateArgs(updateDict);
viewController:setUtArgs(updateDict);

例子2

//OC
@interface TestDynamicFramework : BaseViewController
{
    NSDictionary *homeDate;
}
--lua
local homeDate_lua = self:getIvarObject("homeDate");
local enterBtnTitle = toobjc(homeDate_lua):objectForKey("enterBtnTitle");
//出现crashattempt to call method 'objectForKey' (a nil value)

原因与上面提到的一致，空元素为字典被转成Lua对象，再toobjc变成了NSArray导致objectForKey不存在。
解决办法为使用Lua获取key-value的方式，如：

local enterBtnTitle = homeDate_lua["enterBtnTitle"];

3.3 C函数调用

使用C函数前，先打开绑定C函数开关，在lua文件的最前面调用如下代码：

luaSetWaxConfig({wax_openBindOCFunction=true})

UIKitFunction支持的C函数API表

NSData * UIImageJPEGRepresentation ( UIImage *image, CGFloat compressionQuality );

NSData * UIImagePNGRepresentation ( UIImage *image );

void UIImageWriteToSavedPhotosAlbum ( UIImage *image, id completionTarget, SEL completionSelector, void *contextInfo );

void UISaveVideoAtPathToSavedPhotosAlbum ( NSString *videoPath, id completionTarget, SEL completionSelector, void *contextInfo );

BOOL UIVideoAtPathIsCompatibleWithSavedPhotosAlbum ( NSString *videoPath );

CGContextRef UIGraphicsGetCurrentContext ( void );

void UIGraphicsPushContext ( CGContextRef context );

void UIGraphicsPopContext ( void );

void UIGraphicsBeginImageContext ( CGSize size );

void UIGraphicsBeginImageContextWithOptions ( CGSize size, BOOL opaque, CGFloat scale );

UIImage * UIGraphicsGetImageFromCurrentImageContext ( void );

void UIGraphicsEndImageContext ( void );

void UIRectClip ( CGRect rect );

void UIRectFill ( CGRect rect );

void UIRectFillUsingBlendMode ( CGRect rect, CGBlendMode blendMode );

void UIRectFrame ( CGRect rect );

void UIRectFrameUsingBlendMode ( CGRect rect, CGBlendMode blendMode );

void UIGraphicsBeginPDFContextToData ( NSMutableData *data, CGRect bounds, NSDictionary *documentInfo );

BOOL UIGraphicsBeginPDFContextToFile ( NSString *path, CGRect bounds, NSDictionary *documentInfo );

void UIGraphicsEndPDFContext ( void );

void UIGraphicsBeginPDFPage ( void );

void UIGraphicsBeginPDFPageWithInfo ( CGRect bounds, NSDictionary *pageInfo );

CGRect UIGraphicsGetPDFContextBounds ( void );

void UIGraphicsAddPDFContextDestinationAtPoint ( NSString *name, CGPoint point );

void UIGraphicsSetPDFContextDestinationForRect ( NSString *name, CGRect rect );

void UIGraphicsSetPDFContextURLForRect ( NSURL *url, CGRect rect );

CGAffineTransform CGAffineTransformFromString ( NSString *string );

CGPoint CGPointFromString ( NSString *string );

CGRect CGRectFromString ( NSString *string );

CGSize CGSizeFromString ( NSString *string );

NSString * NSStringFromCGAffineTransform ( CGAffineTransform transform );

NSString * NSStringFromCGPoint ( CGPoint point );

NSString * NSStringFromCGRect ( CGRect rect );

NSString * NSStringFromCGSize ( CGSize size );

NSString * NSStringFromUIEdgeInsets ( UIEdgeInsets insets );

NSString * NSStringFromUIOffset ( UIOffset offset );

UIEdgeInsets UIEdgeInsetsFromString ( NSString *string );

UIOffset UIOffsetFromString ( NSString *string );

BOOL UIEdgeInsetsEqualToEdgeInsets ( UIEdgeInsets insets1, UIEdgeInsets insets2 );

CGRect UIEdgeInsetsInsetRect ( CGRect rect, UIEdgeInsets insets );

BOOL UIOffsetEqualToOffset ( UIOffset offset1, UIOffset offset2 );

void UIAccessibilityPostNotification ( UIAccessibilityNotifications notification, id argument );

BOOL UIAccessibilityIsVoiceOverRunning ( void );

BOOL UIAccessibilityIsClosedCaptioningEnabled ( void );

void UIAccessibilityRequestGuidedAccessSession ( BOOL enable, void (^completionHandler)(BOOL didSucceed) );

BOOL UIAccessibilityIsGuidedAccessEnabled ( void );

BOOL UIAccessibilityIsInvertColorsEnabled ( void );

BOOL UIAccessibilityIsMonoAudioEnabled ( void );

void UIAccessibilityZoomFocusChanged ( UIAccessibilityZoomType type, CGRect frame, UIView *view );

void UIAccessibilityRegisterGestureConflictWithZoom ( void );

CGRect UIAccessibilityConvertFrameToScreenCoordinates ( CGRect rect, UIView *view );

UIBezierPath * UIAccessibilityConvertPathToScreenCoordinates ( UIBezierPath *path, UIView *view );

CTTextAlignment NSTextAlignmentToCTTextAlignment ( NSTextAlignment nsTextAlignment );

NSTextAlignment NSTextAlignmentFromCTTextAlignment ( CTTextAlignment ctTextAlignment );

UIGuidedAccessRestrictionState UIGuidedAccessRestrictionStateForIdentifier ( NSString *restrictionIdentifier );

lua使用例子:

waxClass{"AutoTestUIKitFunction"}
function autoTestStart(self)
    local res = self:respondsToSelector("UIImageWriteToSavedPhotosAlbum:didFinishSavingWithError:contextInfo:")
    print("res=", res)
    UIGraphicsBeginImageContext(CGSize(200,400));
    --renderInContext呈现接受者及其子范围到指定的上下文
    UIApplication:sharedApplication():keyWindow():layer():renderInContext(UIGraphicsGetCurrentContext());
    --返回一个基于当前图形上下文的图片
    local aImage =UIGraphicsGetImageFromCurrentImageContext();
    --移除栈顶的基于当前位图的图形上下文
    UIGraphicsEndImageContext();
    --以png格式返回指定图片的数据
    local imageData =UIImagePNGRepresentation(aImage);
    print("imageData.length=", imageData.length);

    local image = aImage;
    -- local image = UIImage:imageNamed("mac_screen");
    local data = UIImageJPEGRepresentation(image, 0.8);
    -- data = toobjc(data)
    print("data.length=", data:length());

    data = UIImagePNGRepresentation(image);
    -- data = toobjc(data)
    print("data.length=", data:length());

    local info = toobjc({key="value"});
    UIImageWriteToSavedPhotosAlbum(image, self, "UIImageWriteToSavedPhotosAlbum:didFinishSavingWithError:contextInfo:", info);

    local point = CGPoint(10, 10);
    print("point=", point)
    local pointString = NSStringFromCGPoint(point);
    print("pointString=", pointString)
    point = CGPointFromString(pointString);
    print("point=", point)

    local rect = CGRect(10, 10, 100, 100);
    local rectString = NSStringFromCGRect(rect);
    print("rectString=", rectString)
    rect = CGRectFromString(rectString);
    print("rect=", rect)
end

function UIImageWriteToSavedPhotosAlbum_didFinishSavingWithError_contextInfo(self, image, error, contextInfo)
    print("error=", error, "contextInfo=", contextInfo);
end

dispatch支持的C函数API表:

void* dispatch_get_main_queue ( void );
void* dispatch_get_global_queue ( long identifier, unsigned long flags );
void* dispatch_queue_create ( const char *label, void* attr );
void* dispatch_get_current_queue ( void );

const char * dispatch_queue_get_label ( void* queue );
void dispatch_main ( void );

void dispatch_async ( void* queue, void* block );
void dispatch_sync ( void* queue, void* block );
void dispatch_after ( unsigned long long when, void* queue, void* block );
void dispatch_apply ( unsigned long long iterations, void* queue, void*);
void dispatch_once ( long *predicate, void* block );

void* dispatch_semaphore_create ( long value );
long dispatch_semaphore_signal ( void* dsema );
long dispatch_semaphore_wait ( void* dsema, unsigned long long timeout );

unsigned long long dispatch_time ( unsigned long long when, long long delta );

lua使用例子:

function toblock(func, paramTypes)
    if paramTypes == nil then
        return toobjc(func):luaVoidBlock()
   else
       return toobjc(func):luaBlockWithParamsTypeArray(paramTypes)
   end
end
waxClass{"AutoTestGCD"}

function autoTestStart( self )
    print("begin AutoTestGCD autoTestStart");
    local main_queue = dispatch_get_main_queue();
    print(string.format("main_queue=%s", dispatch_queue_get_label(main_queue)));
    print(string.format("main_queue=%s", dispatch_queue_get_label(main_queue)));

    local global_queue =  dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    print(string.format("global_queue=%s", dispatch_queue_get_label(global_queue)));

    local  create_queue = dispatch_queue_create("com.taobao.test", DISPATCH_QUEUE_SERIAL);
    print(string.format("create_queue=%s", dispatch_queue_get_label(create_queue)));

    local  current_queue = dispatch_get_current_queue();
    print(string.format("current_queue=%s", dispatch_queue_get_label(current_queue)));


    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), 
        toblock(
            function( )
                print(string.format("dispatch_async"));
            end)
    );

    dispatch_async(dispatch_get_main_queue(), 
        toblock(
            function( )
                print(string.format("dispatch_async"));
            end)
    );

    dispatch_sync(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), 
        toblock(
            function( )
                print(string.format("dispatch_sync"));
            end)
    );
    local va = UIView:init()
print("va=", va)
local vb = UIViewController:init()
print("vb=", vb)
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (5 * NSEC_PER_SEC)), dispatch_get_main_queue(), 
        toblock(
            function( )
                print(string.format("dispatch_after"));
            end)
    );
    print("start dispatch_apply")


    local semaphore = dispatch_semaphore_create(0);
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (5 * NSEC_PER_SEC)), dispatch_queue_create("com.taobao.test", DISPATCH_QUEUE_SERIAL), 
        toblock(
            function()
                print(string.format("dispatch_semaphore_t dispatch_semaphore_signal"));
                dispatch_semaphore_signal(semaphore);
                print("semaphore=", tostring(semaphore))
            end)
    );
    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);

    local time = dispatch_time(DISPATCH_TIME_NOW, 10);
    print(string.format("DISPATCH_TIME_NOW=%d time=%d", DISPATCH_TIME_NOW, time));

    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (5 * NSEC_PER_SEC)), dispatch_get_main_queue(), 
        toblock(
            function( )
                print("lua dispatch_after")
            end)
    );

    --test download 

    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), 
        toblock(
            function( )

                print("dispatch_async start download");
                local request = NSURLRequest:requestWithURL(NSURL:URLWithString("http://gw.alicdn.com/tps/i2/TB1M4BWHpXXXXbYXVXXdIns_XXX-1125-352.jpg_q50.jpg"));
                local data = NSURLConnection:sendSynchronousRequest_returningResponse_error(request, nil, nil);
                print("dispatch_async end download");

                dispatch_async(dispatch_get_main_queue(), 
                    toblock(
                        function( )
                            print("dispatch_async back to main");
                            print(string.format("data.length=%d", data:length()));
                        end)
                )
            end)
    );
    print("end AutoTestGCD autoTestStart");
end

runtime支持的C函数API列表

const char * class_getName ( void* cls );
void* class_getSuperclass ( void* cls );
void* class_setSuperclass ( void* cls, void* newSuper );
bool class_isMetaClass ( void* cls );
long long class_getInstanceSize ( void* cls );
void* class_getInstanceVariable ( void* cls, const char *name );
void* class_getClassVariable ( void* cls, const char *name );


void objc_setAssociatedObject ( void* object, void *key, void* value, long policy );
void* objc_getAssociatedObject ( void* object, const void *key );
void objc_removeAssociatedObjects ( void* object );

const char * property_getName ( void* property );

lua使用例子:

waxClass{"AutoTestRuntime"}

function autoTestStart(self)
    print("begin AutoTestRuntime autoTestStart")

    local res = objc_getAssociatedObject(self, self:getKey1())
    print('res=', res)

    objc_setAssociatedObject(self, self:getKey1(), "lua_value1", 1)
    local res = objc_getAssociatedObject(self, self:getKey1())
    print('res=', res)

    objc_removeAssociatedObjects(self)
    local res = objc_getAssociatedObject(self, self:getKey1())
    print('res=', res)


    print('class_getName=', class_getName(self:class()))
    print('class_getSuperclass=', class_getSuperclass(self:class()))
    print('class_isMetaClass=', class_isMetaClass(self:class()))
    print('class_getInstanceSize=', class_getInstanceSize(self:class()))
    print('class_getInstanceVariable=', class_getInstanceVariable(self:class(), "view"))
    print('class_getClassVariable=', class_getClassVariable(self:class(), "view"))

    print("end AutoTe   stRuntime autoTestStart")
end

3.4 Block的使用(lua中调用OC block & lua函数转换OC block)

详细block使用方式见wax官方文档

FAQ

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