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1 package org.python.core;
3
4
7
8 public class PyFunction extends PyObject
9 {
10 public String  __name__;
11 public PyObject __doc__;
12 public PyObject func_globals;
13 public PyObject[] func_defaults;
14 public PyCode func_code;
15 public PyObject __dict__;
16 public PyObject func_closure;
18 public PyFunction(PyObject globals, PyObject[] defaults, PyCode code,
19 PyObject doc,PyObject[] closure_cells)
20 {
21 func_globals = globals;
22 __name__ = code.co_name;
23 if (doc == null)
24 __doc__ = Py.None;
25 else
26 __doc__ = doc;
27 func_defaults = defaults;
28 func_code = code;
29 if (closure_cells != null) {
30 func_closure = new PyTuple(closure_cells);
31 } else {
32 func_closure = null;
33 }
34 }
35
36 public PyFunction(PyObject globals, PyObject[] defaults, PyCode code,
37 PyObject doc) {
38 this(globals,defaults,code,doc,null);
39 }
40
41 public PyFunction(PyObject globals, PyObject[] defaults, PyCode code) {
42 this(globals, defaults, code, null,null);
43 }
44
45 public PyFunction(PyObject globals, PyObject[] defaults, PyCode code,
46 PyObject[] closure_cells)
47 {
48 this(globals, defaults, code, null,closure_cells);
49 }
50
51
52 private static final String [] __members__ = {
53 "__doc__", "func_doc",
54 "__name__", "func_name", "__dict__",
55 "func_globals", "func_defaults", "func_code",
56 "func_closure"
57 };
58
59 public PyObject __dir__() {
60 PyString members[] = new PyString[__members__.length];
61 for (int i = 0; i < __members__.length; i++)
62 members[i] = new PyString(__members__[i]);
63 PyList ret = new PyList(members);
64 PyDictionary accum = new PyDictionary();
65 addKeys(accum, "__dict__");
66 ret.extend(accum.keys());
67 ret.sort();
68 return ret;
69 }
70
71 private void throwReadonly(String name) {
72 for (int i = 0; i < __members__.length; i++)
73 if (__members__[i] == name)
74 throw Py.TypeError("readonly attribute");
75 throw Py.AttributeError(name);
76 }
77
78 public void __setattr__(String name, PyObject value) {
79 if (name == "func_doc" || name == "__doc__")
83 __doc__ = value;
84 else if (name == "func_closure") {
85 if (!(value instanceof PyTuple)) {
86 throw Py.TypeError("func_closure must be set to a tuple");
87 }
88 func_closure = value;
89 }
90 else if (name == "func_defaults")
94 throwReadonly(name);
95 else if (name == "func_code") {
96 if (value instanceof PyCode)
97 func_code = (PyCode) value;
98 else
99 throw Py.TypeError("func_code must be set to a code object");
100 } else if (name == "__dict__" || name == "func_dict") {
101 if (value instanceof PyDictionary || value instanceof PyStringMap)
102 __dict__ = value;
103 else
104 throw Py.TypeError("setting function's dictionary " +
105 "to a non-dict");
106 } else {
107 if (__dict__ == null)
108 __dict__ = new PyStringMap();
109 __dict__.__setitem__(name, value);
110 }
111 }
112
113 public void __delattr__(String name) {
114 if (name == "__dict__" || name == "func_dict") {
115 throw Py.TypeError("function's dictionary may not be deleted");
116 } else if (name == "func_defaults") {
117 func_defaults = Py.EmptyObjects;
118 return;
119 } else if (name == "func_doc" || name == "__doc__") {
120 __doc__ = Py.None;
121 return;
122 }
123 if (__dict__ == null)
124 throw Py.AttributeError(name);
125 __dict__.__delitem__(name);
126 }
127
128 public boolean isMappingType() { return false; }
129 public boolean isNumberType() { return false; }
130 public boolean isSequenceType() { return false; }
131
132 public PyObject __findattr__(String name) {
133 if (name == "func_doc")
135 return __doc__;
136 if (name == "func_name")
137 return new PyString(__name__);
138 if (name == "func_closure") {
139 if (func_closure != null) return func_closure;
140 return Py.None;
141 }
142 if (name == "func_defaults") {
143 if (func_defaults.length == 0)
144 return Py.None;
145 return new PyTuple(func_defaults);
146 }
147 if (name == "__dict__" || name == "func_dict") {
148 if (__dict__ == null)
149 __dict__ = new PyStringMap();
150 return __dict__;
151 }
152 if (__dict__ != null) {
153 PyObject ret = __dict__.__finditem__(name);
154 if (ret != null)
155 return ret;
156 }
157 return super.__findattr__(name);
158 }
159
160 public PyObject _doget(PyObject container) {
161 return _doget(container, null);
163 }
164
165 public PyObject _doget(PyObject container, PyObject wherefound) {
166 return new PyMethod(container, this, wherefound);
169 }
170
171 public PyObject __call__() {
172 return func_code.call(func_globals, func_defaults, func_closure);
173 }
174 public PyObject __call__(PyObject arg) {
175 return func_code.call(arg, func_globals, func_defaults, func_closure);
176 }
177 public PyObject __call__(PyObject arg1, PyObject arg2) {
178 return func_code.call(arg1, arg2, func_globals, func_defaults,
179 func_closure);
180 }
181 public PyObject __call__(PyObject arg1, PyObject arg2, PyObject arg3) {
182 return func_code.call(arg1, arg2, arg3, func_globals, func_defaults,
183 func_closure);
184 }
185
186 public PyObject __call__(PyObject[] args, String [] keywords) {
187 return func_code.call(args, keywords, func_globals, func_defaults,
188 func_closure);
189 }
190 public PyObject __call__(PyObject arg1, PyObject[] args,
191 String [] keywords)
192 {
193 return func_code.call(arg1, args, keywords, func_globals,
194 func_defaults, func_closure);
195 }
196 public String toString() {
197 return "<function "+__name__+" "+Py.idstr(this)+">";
198 }
199 }
200 |
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