<?php
namespace Std\Lib\Syntax;

/**
 * Objective-C（Cの上位互換）
 */
class ObjC extends C {
  protected array $headerDirectives = ['include', 'include_next', 'import'];

  protected array $rules = [
    // NSString @"…"
    ['re' => '@"(?:[^"\\\\\n]|\\\\.)*"?', 'class' => 'string'],
    // @interface, @property, @autoreleasepool等
    ['re' => '@[A-Za-z_]\w*', 'class' => 'keyword'],
    // リテラル @[…] @{…} @(…)
    ['re' => '@(?=[\[{(])', 'class' => 'keyword'],
  ];

  /** @var array Cに加えるObjective-Cのトークン */
  protected array $objcTokens = [
    'keyword' => [
      'self', 'super', 'id', 'instancetype', 'Class', 'SEL', 'IMP', 'BOOL', 'in', 'out', 'inout', 'oneway', 'bycopy', 'byref',
      'nonatomic', 'atomic', 'strong', 'weak', 'copy', 'assign', 'retain', 'readonly', 'readwrite', 'getter', 'setter',
      'nullable', 'nonnull', 'null_resettable', '_Nullable', '_Nonnull', '_Null_unspecified', '__nullable', '__nonnull',
      '__bridge', '__bridge_transfer', '__bridge_retained', '__block', '__weak', '__strong', '__unsafe_unretained', '__autoreleasing', '__kindof',
    ],
    'constant' => [
      'YES', 'NO', 'nil', 'Nil', 'NULL',
    ],
    'type' => [
      'NSObject', 'NSString', 'NSMutableString', 'NSArray', 'NSMutableArray', 'NSDictionary', 'NSMutableDictionary', 'NSSet', 'NSMutableSet',
      'NSNumber', 'NSValue', 'NSData', 'NSMutableData', 'NSDate', 'NSURL', 'NSError', 'NSException', 'NSInteger', 'NSUInteger', 'NSTimeInterval',
      'NSRange', 'NSZone', 'NSNotification', 'NSNotificationCenter', 'NSUserDefaults', 'NSFileManager', 'NSBundle', 'NSThread', 'NSTimer',
      'NSRunLoop', 'NSAutoreleasePool', 'NSProcessInfo', 'NSApplication', 'NSWindow', 'NSView', 'NSViewController', 'NSColor', 'NSImage',
      'UIApplication', 'UIView', 'UIViewController', 'UIWindow', 'UIColor', 'UIImage', 'UILabel', 'UIButton',
      'CGFloat', 'CGRect', 'CGPoint', 'CGSize', 'CGContextRef', 'CFStringRef', 'CFTypeRef', 'dispatch_queue_t', 'dispatch_block_t',
      'MTLDevice', 'MTLCommandQueue', 'MTLCommandBuffer', 'MTLRenderPipelineState', 'MTLBuffer', 'MTLTexture',
    ],
    'builtin' => [
      'NSLog', 'NSStringFromClass', 'NSClassFromString', 'NSStringFromSelector', 'NSSelectorFromString', 'NSMakeRange', 'NSApplicationMain',
      'UIApplicationMain', 'CGRectMake', 'CGPointMake', 'CGSizeMake', 'objc_msgSend', 'objc_getClass', 'class_getName', 'sel_registerName',
      'dispatch_async', 'dispatch_sync', 'dispatch_get_main_queue', 'dispatch_get_global_queue', 'dispatch_once', 'dispatch_after',
      'MTLCreateSystemDefaultDevice', 'CFRelease', 'CFRetain',
      'NS_ENUM', 'NS_OPTIONS', 'NS_ASSUME_NONNULL_BEGIN', 'NS_ASSUME_NONNULL_END', 'NS_DESIGNATED_INITIALIZER', 'NS_UNAVAILABLE',
    ],
  ];

  public function prepare(string $code): void {
    parent::prepare($code);
    foreach ($this->buildWords($this->objcTokens) as $w => $class) {
      if (!isset($this->words[$w])) $this->words[$w] = $class;
    }
  }

  public function classify(string $word, array $ctx): ?string {
    $class = parent::classify($word, $ctx);
    if ($class !== null) return $class;
    // メッセージのセレクター部分（[obj setValue:x forKey:y]）。「Foo : NSObject」の様に空白がある場合は除く
    if ($ctx['nextRaw'] === ':') return 'function';
    return null;
  }
}