pymonkey: docs/rendered/_sources/pymonkey.txt annotate

annotate docs/rendered/_sources/pymonkey.txt @ 134:0c81cb18c935

Added docs for context.has_property().

author	Atul Varma <varmaa@toolness.com>
date	Sun, 23 Aug 2009 19:19:51 -0700
parents	4705522c7431
children	d08cb5a06c66

rev	line source
51 fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	1 :mod:`pymonkey` --- Access SpiderMonkey from Python
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	2 ===================================================
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	3
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	4 .. module:: pymonkey
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	5 :synopsis: Access SpiderMonkey from Python
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	6
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	7 .. testsetup:: *
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	8
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	9 import pymonkey
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	10
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	11 This module offers a low-level interface to the `Mozilla SpiderMonkey
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	12 <https://developer.mozilla.org/en/SpiderMonkey>`_ JavaScript engine.
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	13
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	14 .. exception:: error
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	15
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	16 This is the type of any SpiderMonkey-related errors thrown by this
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	17 module.
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	18
54 234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	19 .. data:: undefined
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	20
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	21 This is the singleton that represents the JavaScript value
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	22 ``undefined``, as Python has no equivalent representation
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	23 (JavaScript's ``null`` is mapped to Python's ``None`` object).
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	24 For instance:
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	25
234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	26 >>> cx = pymonkey.Runtime().new_context()
56 72e84bd75905 Made another doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 55 diff changeset	27 >>> cx.evaluate_script(cx.new_object(), '', '<string>', 1)
57 a2b617731398 pymonkey.undefined now has a 'falsy' value. Atul Varma <varmaa@toolness.com> parents: 56 diff changeset	28 pymonkey.undefined
54 234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	29
57 a2b617731398 pymonkey.undefined now has a 'falsy' value. Atul Varma <varmaa@toolness.com> parents: 56 diff changeset	30 This object also has a "falsy" value:
54 234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	31
57 a2b617731398 pymonkey.undefined now has a 'falsy' value. Atul Varma <varmaa@toolness.com> parents: 56 diff changeset	32 >>> if not pymonkey.undefined:
a2b617731398 pymonkey.undefined now has a 'falsy' value. Atul Varma <varmaa@toolness.com> parents: 56 diff changeset	33 ... print "See, it's falsy!"
a2b617731398 pymonkey.undefined now has a 'falsy' value. Atul Varma <varmaa@toolness.com> parents: 56 diff changeset	34 See, it's falsy!
54 234fca1c4b86 Added docs for pymonkey.undefined. Atul Varma <varmaa@toolness.com> parents: 53 diff changeset	35
53 2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	36 .. class:: Object
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	37
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	38 This is the type of JavaScript objects. Such objects can only be
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	39 created via Pymonkey calls like :meth:`Context.new_object()` or
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	40 through the execution of JS code, but this type object can be used
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	41 with Python's built-in :func:`isinstance()` to verify that an
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	42 object is a JS object, like so:
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	43
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	44 >>> obj = pymonkey.Runtime().new_context().new_object()
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	45 >>> isinstance(obj, pymonkey.Object)
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	46 True
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	47
78 c48b393f6461 Added docs for Object.get_runtime(). Atul Varma <varmaa@toolness.com> parents: 58 diff changeset	48 .. method:: get_runtime()
c48b393f6461 Added docs for Object.get_runtime(). Atul Varma <varmaa@toolness.com> parents: 58 diff changeset	49
c48b393f6461 Added docs for Object.get_runtime(). Atul Varma <varmaa@toolness.com> parents: 58 diff changeset	50 Returns the :class:`Runtime` that the object belongs to.
c48b393f6461 Added docs for Object.get_runtime(). Atul Varma <varmaa@toolness.com> parents: 58 diff changeset	51
85 e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	52 .. class:: Function
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	53
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	54 This is the type of JavaScript functions, which is a subtype of
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	55 :class:`Object`.
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	56
51 fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	57 .. class:: Context
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	58
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	59 This is the type of JavaScript context objects. Contexts can only
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	60 be created via a call to :meth:`Runtime.new_context()`, but this
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	61 type object can be used with Python's built-in :func:`isinstance()`
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	62 to verify that an object is a context, like so:
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	63
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	64 >>> cx = pymonkey.Runtime().new_context()
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	65 >>> isinstance(cx, pymonkey.Context)
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	66 True
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	67
130 4705522c7431 Added notes about weak-referencability to docs. Atul Varma <varmaa@toolness.com> parents: 119 diff changeset	68 JS contexts are weak-referencable.
4705522c7431 Added notes about weak-referencability to docs. Atul Varma <varmaa@toolness.com> parents: 119 diff changeset	69
58 7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	70 .. method:: get_runtime()
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	71
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	72 Returns the :class:`Runtime` that the context belongs to.
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	73
79 228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	74 .. method:: new_object([private_obj])
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	75
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	76 Creates a new :class:`Object` instance and returns
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	77 it. ``private_obj`` is any Python object that is privately
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	78 stored within the new JS object; it can be retrieved using
80 4945e4073110 Fixed typos in docs. Atul Varma <varmaa@toolness.com> parents: 79 diff changeset	79 :meth:`get_object_private()`.
58 7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	80
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	81 .. method:: new_function(func, name)
85 e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	82
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	83 Creates a new :class:`Function` instance that wraps the
90 c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	84 given Python callable. In JS-land, the function will
85 e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	85 have the given name.
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	86
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	87 When the function is executed from JavaScript, `func`
90 c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	88 will be passed three positional arguments.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	89
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	90 The first argument is a :class:`Context` that represents the
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	91 JS context which is calling the function.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	92
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	93 The second argument is an :class:`Object` that represents the
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	94 value of ``this`` for the duration of the call.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	95
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	96 The third argument is a tuple containing the arguments
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	97 passed to the function.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	98
111 df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	99 For instance:
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	100
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	101 >>> def add(cx, this, args):
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	102 ... return args[0] + args[1]
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	103 >>> cx = pymonkey.Runtime().new_context()
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	104 >>> obj = cx.new_object()
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	105 >>> cx.define_property(obj, 'add', cx.new_function(add, 'add'))
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	106 >>> cx.evaluate_script(obj, 'add(1, 1);', '<string>', 1)
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	107 2
df607254de2d Added a doctest. Atul Varma <varmaa@toolness.com> parents: 90 diff changeset	108
114 87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	109 .. method:: define_property(object, name, value)
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	110
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	111 Creates a new property on `object`, bypassing any JavaScript setters.
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	112
134 0c81cb18c935 Added docs for context.has_property(). Atul Varma <varmaa@toolness.com> parents: 130 diff changeset	113 .. method:: has_property(object, name)
0c81cb18c935 Added docs for context.has_property(). Atul Varma <varmaa@toolness.com> parents: 130 diff changeset	114
0c81cb18c935 Added docs for context.has_property(). Atul Varma <varmaa@toolness.com> parents: 130 diff changeset	115 Returns whether or not `object` has the specified property.
0c81cb18c935 Added docs for context.has_property(). Atul Varma <varmaa@toolness.com> parents: 130 diff changeset	116
114 87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	117 .. method:: get_property(object, name)
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	118
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	119 Finds the specified property on `object` and returns its value,
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	120 possibly invoking a JavaScript getter.
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	121
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	122 Example:
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	123
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	124 >>> cx = pymonkey.Runtime().new_context()
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	125 >>> obj = cx.new_object()
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	126 >>> cx.define_property(obj, 'beets', 'i like beets.')
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	127 >>> cx.get_property(obj, 'beets')
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	128 u'i like beets.'
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	129
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	130 Note also that calling this function on undefined properties
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	131 yields :data:`undefined`:
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	132
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	133 >>> cx.get_property(obj, 'carrots')
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	134 pymonkey.undefined
87147faa031a Added docs for define_property() and get_property(). Atul Varma <varmaa@toolness.com> parents: 113 diff changeset	135
79 228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	136 .. method:: get_object_private(object)
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	137
80 4945e4073110 Fixed typos in docs. Atul Varma <varmaa@toolness.com> parents: 79 diff changeset	138 Returns the ``private_obj`` passed to :meth:`new_object()`
79 228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	139 when `object` was first created. If it doesn't exist, ``None``
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	140 is returned.
228a56e7e793 Added docs for context.get_object_private(). Atul Varma <varmaa@toolness.com> parents: 78 diff changeset	141
85 e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	142 If `object` was created with :meth:`new_function()`, then this
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	143 method returns the Python callable wrapped by `object`.
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	144
90 c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	145 This functionality is useful if you want to securely represent
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	146 Python objects in JS-land.
58 7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	147
85 e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	148 .. method:: clear_object_private(object)
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	149
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	150 Clears the ``private_obj`` passed to :meth:`new_object()`
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	151 when `object` was first created. If it doesn't exist, this
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	152 function returns nothing.
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	153
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	154 If `object` was created with :meth:`new_function()`, then this
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	155 method effectively "unbinds" the Python callable wrapped by
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	156 `object`. If `object` is later called, an exception will be
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	157 raised.
e9f450d30c0e Added more documentation. Atul Varma <varmaa@toolness.com> parents: 80 diff changeset	158
90 c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	159 .. method:: evaluate_script(globalobj, code, filename, lineno)
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	160
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	161 Evaluates the text `code` using `globalobj` as the global
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	162 object/scope.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	163
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	164 It's assumed that `code` is coming from the file named by `filename`;
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	165 the first line of `code` is assumed to be line number `lineno` of
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	166 `filename`. This metadata is very useful for debugging stack traces,
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	167 exceptions, and so forth.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	168
113 e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	169 For example:
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	170
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	171 >>> cx = pymonkey.Runtime().new_context()
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	172 >>> obj = cx.new_object()
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	173 >>> cx.init_standard_classes(obj)
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	174 >>> cx.evaluate_script(obj, '5 * Math', '<string>', 1)
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	175 nan
e616b4605db0 Added doctest for evaluate_script(). Atul Varma <varmaa@toolness.com> parents: 112 diff changeset	176
90 c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	177 .. method:: call_function(thisobj, func, args)
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	178
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	179 Calls a JavaScript function.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	180
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	181 `thisobj` is an :class:`Object` that will be used as the value
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	182 of ``this`` when the function executes, `func` is the
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	183 :class:`Function` to execute, and `args` is a tuple of arguments
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	184 to pass to the function.
c41f1d2e8f9d Added more docs. Atul Varma <varmaa@toolness.com> parents: 85 diff changeset	185
112 2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	186 For instance:
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	187
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	188 >>> cx = pymonkey.Runtime().new_context()
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	189 >>> obj = cx.new_object()
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	190 >>> cx.init_standard_classes(obj)
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	191 >>> Math = cx.get_property(obj, 'Math')
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	192 >>> floor = cx.get_property(Math, 'floor')
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	193 >>> cx.call_function(Math, floor, (5.3,))
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	194 5
2086377c0abe Added doctest for call_function(). Atul Varma <varmaa@toolness.com> parents: 111 diff changeset	195
58 7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	196 .. method:: init_standard_classes(object)
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	197
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	198 Defines the standard JavaScript classes on the given
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	199 :class:`Object`, such as ``Array``, ``eval``, ``undefined``, and
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	200 so forth. For more information, see the documentation to
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	201 `JS_InitStandardClasses()
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	202 <https://developer.mozilla.org/en/SpiderMonkey/JSAPI_Reference/JS_InitStandardClasses>`_,
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	203 which this method wraps.
7a3461ccaf1d Added documentation for Context methods get_runtime(), new_object(), and init_standard_classes(). Atul Varma <varmaa@toolness.com> parents: 57 diff changeset	204
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	205 .. method:: gc()
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	206
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	207 Performs garbage collection on the context's JavaScript runtime.
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	208
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	209 .. method:: set_operation_callback(func)
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	210
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	211 Sets the operation callback for the context to the given Python
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	212 callable. The callback can be triggered via
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	213 :meth:`trigger_operation_callback()`.
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	214
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	215 `func` takes one argument: the context that triggered it.
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	216
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	217 .. method:: trigger_operation_callback()
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	218
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	219 Triggers the context's operation callback. If no callback has
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	220 yet been set, this function does nothing.
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	221
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	222 This function is one of the few thread-safe functions available
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	223 to a JS runtime, and together with
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	224 :meth:`set_operation_callback()` can be used to abort the
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	225 execution of long-running code.
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	226
116 06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	227 For instance, we first create an operation callback to stop
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	228 long-running code by throwing an exception:
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	229
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	230 >>> import time, threading
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	231 >>> cx = pymonkey.Runtime().new_context()
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	232 >>> def stop_running_code(cx):
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	233 ... raise Exception('JS took too long to execute.')
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	234 >>> cx.set_operation_callback(stop_running_code)
116 06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	235
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	236 Then we create a watchdog thread to trigger the operation
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	237 callback once a long amount of time has passed:
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	238
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	239 >>> def watchdog_thread():
116 06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	240 ... time.sleep(0.1) # An eternity to a computer!
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	241 ... cx.trigger_operation_callback()
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	242 >>> thread = threading.Thread(target=watchdog_thread)
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	243 >>> thread.start()
116 06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	244
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	245 Now, when we execute code that takes too long to run, it gets
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	246 aborted:
06269ca0b36c Made the operation callback doctest easier to read. Atul Varma <varmaa@toolness.com> parents: 115 diff changeset	247
115 f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	248 >>> try:
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	249 ... cx.evaluate_script(cx.new_object(), 'while (1) {}',
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	250 ... '<string>', 1)
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	251 ... except pymonkey.error, e:
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	252 ... print cx.get_object_private(e.args[0])
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	253 JS took too long to execute.
f4c550369332 Added documentation for gc() and operation callback functions. Atul Varma <varmaa@toolness.com> parents: 114 diff changeset	254
51 fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	255 .. class:: Runtime()
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	256
53 2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	257 Creates a new JavaScript runtime. JS objects created by the runtime
2055d853b995 Added docs for pymonkey.Object. Atul Varma <varmaa@toolness.com> parents: 51 diff changeset	258 may only interact with other JS objects of the same runtime.
51 fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	259
119 d30576edf797 Added notes on thread safety to documentation. Atul Varma <varmaa@toolness.com> parents: 116 diff changeset	260 With few exceptions, objects belonging to a runtime can currently
d30576edf797 Added notes on thread safety to documentation. Atul Varma <varmaa@toolness.com> parents: 116 diff changeset	261 only be used in the same thread that the runtime was created
d30576edf797 Added notes on thread safety to documentation. Atul Varma <varmaa@toolness.com> parents: 116 diff changeset	262 in. This may be changed in the future, since SpiderMonkey itself
d30576edf797 Added notes on thread safety to documentation. Atul Varma <varmaa@toolness.com> parents: 116 diff changeset	263 has support for thread safety.
d30576edf797 Added notes on thread safety to documentation. Atul Varma <varmaa@toolness.com> parents: 116 diff changeset	264
130 4705522c7431 Added notes about weak-referencability to docs. Atul Varma <varmaa@toolness.com> parents: 119 diff changeset	265 JS runtimes are weak-referencable.
4705522c7431 Added notes about weak-referencability to docs. Atul Varma <varmaa@toolness.com> parents: 119 diff changeset	266
51 fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	267 .. method:: new_context()
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	268
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	269 Creates a new Context object and returns it. Contexts are best
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	270 conceptualized as threads of execution in a JS runtme; each one
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	271 has a program counter, a current exception state, and so
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	272 forth. JS objects may be freely accessed and changed by contexts
fabd3f2271fa Added some basic, incomplete docs on the pymonkey module, which include a doctest that's run when pymonkey is built. Atul Varma <varmaa@toolness.com> parents: diff changeset	273 that are associated with the same JS runtime as the objects.

Mercurial > pymonkey

annotate docs/rendered/_sources/pymonkey.txt @ 134:0c81cb18c935