Std.hx 2.5 KB

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  1. /*
  2. * Copyright (C)2005-2015 Haxe Foundation
  3. *
  4. * Permission is hereby granted, free of charge, to any person obtaining a
  5. * copy of this software and associated documentation files (the "Software"),
  6. * to deal in the Software without restriction, including without limitation
  7. * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8. * and/or sell copies of the Software, and to permit persons to whom the
  9. * Software is furnished to do so, subject to the following conditions:
  10. *
  11. * The above copyright notice and this permission notice shall be included in
  12. * all copies or substantial portions of the Software.
  13. *
  14. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19. * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  20. * DEALINGS IN THE SOFTWARE.
  21. */
  22. @:coreApi class Std {
  23. public static function is( v : Dynamic, t : Dynamic ) : Bool {
  24. return untyped untyped __call__("_hx_instanceof", v,t);
  25. }
  26. public static function instance<T:{},S:T>( value : T, c : Class<S> ) : S {
  27. return Std.is(value, c) ? cast value : null;
  28. }
  29. public static function string( s : Dynamic ) : String {
  30. return untyped __call__("_hx_string_rec", s, '');
  31. }
  32. public static function int( x : Float ) : Int {
  33. var i : Int = untyped __call__("fmod", x, 0x80000000) & 0xffffffff;
  34. if (untyped i & 0x80000000)
  35. i = -((~i & 0xffffffff) + 1);
  36. return i;
  37. }
  38. public static function parseInt( x : String ) : Null<Int> {
  39. untyped if (!__call__("is_numeric", x)) {
  40. var matches = null;
  41. __call__('preg_match', '/^-?\\d+/', x, matches);
  42. return __call__("count", matches) == 0 ? null : __call__('intval', matches[0]);
  43. } else
  44. return x.substr(0, 2).toLowerCase() == "0x" ? __php__("(int) hexdec(substr($x, 2))") : __php__("intval($x)");
  45. }
  46. public static function parseFloat( x : String ) : Float {
  47. var v : Float = untyped __call__("floatval", x);
  48. untyped if (v==0.0) {
  49. x=untyped __call__("rtrim", x);
  50. v=untyped __call__("floatval", x);
  51. if (v == 0.0 && !__call__("is_numeric", x)) v = untyped __call__("acos", 1.01);
  52. }
  53. return v;
  54. }
  55. public static function random( x : Int ) : Int {
  56. return untyped x <= 0 ? 0 : __call__("mt_rand", 0, x-1);
  57. }
  58. }