added files via upload

Tweaks/FLEX/Utility/Runtime/Objc/Reflection/FLEXMethodBase.m

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+//
+//  FLEXMethodBase.m
+//  FLEX
+//
+//  Derived from MirrorKit.
+//  Created by Tanner on 7/5/15.
+//  Copyright (c) 2020 FLEX Team. All rights reserved.
+//
+
+#import "FLEXMethodBase.h"
+
+
+@implementation FLEXMethodBase
+
+#pragma mark Initializers
+
++ (instancetype)buildMethodNamed:(NSString *)name withTypes:(NSString *)typeEncoding implementation:(IMP)implementation {
+    return [[self alloc] initWithSelector:sel_registerName(name.UTF8String) types:typeEncoding imp:implementation];
+}
+
+- (id)initWithSelector:(SEL)selector types:(NSString *)types imp:(IMP)imp {
+    NSParameterAssert(selector); NSParameterAssert(types); NSParameterAssert(imp);
+    
+    self = [super init];
+    if (self) {
+        _selector = selector;
+        _typeEncoding = types;
+        _implementation = imp;
+        _name = NSStringFromSelector(self.selector);
+    }
+    
+    return self;
+}
+
+- (NSString *)selectorString {
+    return _name;
+}
+
+#pragma mark Overrides
+
+- (NSString *)description {
+    if (!_flex_description) {
+        _flex_description = [NSString stringWithFormat:@"%@ '%@'", _name, _typeEncoding];
+    }
+
+    return _flex_description;
+}
+
+@end