Various performance improvements

- Remove ARC from -[FLEXTypeEncodingParser canScanChar:]
- Make FLEXMethod.imagePath lazy

Classes/Utility/Categories/NSObject+FLEX_Reflection.h

@@ -34,6 +34,8 @@ NSArray<FLEXProperty *> *FLEXGetAllProperties(_Nullable Class cls);
 /// @param instance used to mark methods as instance methods or not.
 /// Not used to determine whether to get instance or class methods. 
 NSArray<FLEXMethod *> *FLEXGetAllMethods(_Nullable Class cls, BOOL instance);
+/// @param cls a class object to get all instance and class methods.
+NSArray<FLEXMethod *> *FLEXGetAllInstanceAndClassMethods(_Nullable Class cls);
 
 
 

Classes/Utility/Runtime/Objc/FLEXTypeEncodingParser.m

@@ -546,10 +546,15 @@ BOOL FLEXGetSizeAndAlignment(const char *type, NSUInteger *sizep, NSUInteger *al
 }
 
 - (BOOL)canScanChar:(char)c {
-    NSScanner *scan = self.scan;
-    if (scan.scanLocation >= scan.string.length) return NO;
+    // By avoiding any ARC calls on these two objects which we know won't be
+    // free'd out from under us, we're making HUGE performance savings in this
+    // parser, because this method is one of the most-used methods of the parser.
+    // This is probably the most performance-critical method in this class.
+    __unsafe_unretained NSScanner *scan = self.scan;
+    __unsafe_unretained NSString *string = scan.string;
+    if (scan.scanLocation >= string.length) return NO;
     
-    return [scan.string characterAtIndex:scan.scanLocation] == c;
+    return [string characterAtIndex:scan.scanLocation] == c;
 }
 
 - (BOOL)scanChar:(char)c {

Classes/Utility/Runtime/Objc/Reflection/FLEXMethod.m

@@ -14,6 +14,7 @@
 #include <dlfcn.h>
 
 @implementation FLEXMethod
+@synthesize imagePath = _imagePath;
 @dynamic implementation;
 
 + (instancetype)buildMethodNamed:(NSString *)name withTypes:(NSString *)typeEncoding implementation:(IMP)implementation {
@@ -156,11 +157,6 @@
     _name              = NSStringFromSelector(_selector);
     _returnType        = (FLEXTypeEncoding *)_signature.methodReturnType ?: "";
     _returnSize        = _signature.methodReturnLength;
-    
-    Dl_info exeInfo;
-    if (dladdr(_objc_method, &exeInfo)) {
-        _imagePath = exeInfo.dli_fname ? @(exeInfo.dli_fname) : nil;
-    }
 }
 
 #pragma mark Public
@@ -184,6 +180,17 @@
     return _typeEncoding;
 }
 
+- (NSString *)imagePath {
+    if (!_imagePath) {
+        Dl_info exeInfo;
+        if (dladdr(_objc_method, &exeInfo)) {
+            _imagePath = exeInfo.dli_fname ? @(exeInfo.dli_fname) : @"";
+        }
+    }
+    
+    return _imagePath;
+}
+
 #pragma mark Misc
 
 - (void)swapImplementations:(FLEXMethod *)method {