JSScriptRefPrivate.h 5.2 KB

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  1. /*
  2. * Copyright (C) 2012 Apple Inc. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. * 1. Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * 2. Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. *
  13. * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  14. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  15. * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  17. * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  18. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  19. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  20. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  21. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  22. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  23. * THE POSSIBILITY OF SUCH DAMAGE.
  24. */
  25. #ifndef JSScriptRefPrivate_h
  26. #define JSScriptRefPrivate_h
  27. #include <JavaScriptCore/JSContextRef.h>
  28. #include <JavaScriptCore/JSStringRef.h>
  29. #include <JavaScriptCore/JSValueRef.h>
  30. /*! @typedef JSScriptRef A JavaScript script reference. */
  31. typedef struct OpaqueJSScript* JSScriptRef;
  32. #ifdef __cplusplus
  33. extern "C" {
  34. #endif
  35. /*!
  36. @function
  37. @abstract Creates a script reference from an ascii string, without copying or taking ownership of the string
  38. @param contextGroup The context group the script is to be used in.
  39. @param url The source url to be reported in errors and exceptions.
  40. @param startingLineNumber An integer value specifying the script's starting line number in the file located at sourceURL. This is only used when reporting exceptions. The value is one-based, so the first line is line 1 and invalid values are clamped to 1.
  41. @param source The source string. This is required to be pure ASCII and to never be deallocated.
  42. @param length The length of the source string.
  43. @param errorMessage A pointer to a JSStringRef in which to store the parse error message if the source is not valid. Pass NULL if you do not care to store an error message.
  44. @param errorLine A pointer to an int in which to store the line number of a parser error. Pass NULL if you do not care to store an error line.
  45. @result A JSScriptRef for the provided source, or NULL if any non-ASCII character is found in source or if the source is not a valid JavaScript program. Ownership follows the Create Rule.
  46. @discussion Use this function to create a reusable script reference with a constant
  47. buffer as the backing string. The source string must outlive the global context.
  48. */
  49. JS_EXPORT JSScriptRef JSScriptCreateReferencingImmortalASCIIText(JSContextGroupRef contextGroup, JSStringRef url, int startingLineNumber, const char* source, size_t length, JSStringRef* errorMessage, int* errorLine);
  50. /*!
  51. @function
  52. @abstract Creates a script reference from a string
  53. @param contextGroup The context group the script is to be used in.
  54. @param url The source url to be reported in errors and exceptions.
  55. @param startingLineNumber An integer value specifying the script's starting line number in the file located at sourceURL. This is only used when reporting exceptions. The value is one-based, so the first line is line 1 and invalid values are clamped to 1.
  56. @param source The source string.
  57. @param errorMessage A pointer to a JSStringRef in which to store the parse error message if the source is not valid. Pass NULL if you do not care to store an error message.
  58. @param errorLine A pointer to an int in which to store the line number of a parser error. Pass NULL if you do not care to store an error line.
  59. @result A JSScriptRef for the provided source, or NULL is the source is not a valid JavaScript program. Ownership follows the Create Rule.
  60. */
  61. JS_EXPORT JSScriptRef JSScriptCreateFromString(JSContextGroupRef contextGroup, JSStringRef url, int startingLineNumber, JSStringRef source, JSStringRef* errorMessage, int* errorLine);
  62. /*!
  63. @function
  64. @abstract Retains a JavaScript script.
  65. @param script The script to retain.
  66. */
  67. JS_EXPORT void JSScriptRetain(JSScriptRef script);
  68. /*!
  69. @function
  70. @abstract Releases a JavaScript script.
  71. @param script The script to release.
  72. */
  73. JS_EXPORT void JSScriptRelease(JSScriptRef script);
  74. /*!
  75. @function
  76. @abstract Evaluates a JavaScript script.
  77. @param ctx The execution context to use.
  78. @param script The JSScript to evaluate.
  79. @param thisValue The value to use as "this" when evaluating the script.
  80. @param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.
  81. @result The JSValue that results from evaluating script, or NULL if an exception is thrown.
  82. */
  83. JS_EXPORT JSValueRef JSScriptEvaluate(JSContextRef ctx, JSScriptRef script, JSValueRef thisValue, JSValueRef* exception);
  84. #ifdef __cplusplus
  85. }
  86. #endif
  87. #endif /* JSScriptRefPrivate_h */