[1cb879] | 1 | // -*- c++ -*- |
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| 2 | //***************************************************************************** |
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| 3 | /** @file pyobject.cc |
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| 4 | * |
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| 5 | * @author Alexander Dreyer |
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| 6 | * @date 2010-12-15 |
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| 7 | * |
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| 8 | * This file defines the @c blackbox operations for the pyobject type. |
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| 9 | * |
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| 10 | * @par Copyright: |
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| 11 | * (c) 2010 by The Singular Team, see LICENSE file |
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| 12 | **/ |
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| 13 | //***************************************************************************** |
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| 14 | |
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[762407] | 15 | #include "config.h" |
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[f5b40a] | 16 | #include <kernel/mod2.h> |
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[92d684] | 17 | #include <misc/auxiliary.h> |
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[1cb879] | 18 | |
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| 19 | #include <omalloc/omalloc.h> |
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[92d684] | 20 | |
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[1cb879] | 21 | #include <kernel/febase.h> |
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[92d684] | 22 | // #include <kernel/longrat.h> |
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[1cb879] | 23 | |
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[92d684] | 24 | #include "subexpr.h" |
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| 25 | #include "lists.h" |
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| 26 | #include "ipid.h" |
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| 27 | #include "blackbox.h" |
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[1cb879] | 28 | |
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| 29 | #include <Python.h> |
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[92d684] | 30 | // #include <iterator> // std::distance |
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| 31 | // #include <stdio.h> |
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[1cb879] | 32 | |
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| 33 | void sync_contexts(); |
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| 34 | |
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| 35 | /** @class PythonInterpreter |
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| 36 | * This class initializes and finalized the python interpreter. |
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| 37 | * |
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| 38 | * It also stores the Singular token number, which is assigned to this type on |
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| 39 | * runtime. |
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| 40 | **/ |
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| 41 | class PythonInterpreter { |
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| 42 | public: |
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| 43 | typedef int id_type; |
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| 44 | |
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| 45 | ~PythonInterpreter() { if(m_owns_python) Py_Finalize(); } |
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| 46 | |
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| 47 | /// Initialize unique (singleton) python interpreter instance, |
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| 48 | /// and set Singular type identifier |
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[011fb62] | 49 | static void init(id_type num ) { instance().m_id = num; } |
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[1cb879] | 50 | |
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| 51 | /// Get Singular type identitfier |
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| 52 | static id_type id() { return instance().m_id; } |
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| 53 | |
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| 54 | private: |
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| 55 | /// Singleton: Only init() is allowed to construct an instance |
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| 56 | PythonInterpreter(): |
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| 57 | m_id(0), m_owns_python(false) { start_python(); } |
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| 58 | |
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| 59 | /// Static initialization - |
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| 60 | /// safely takes care of destruction on program termination |
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| 61 | static PythonInterpreter& instance() |
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| 62 | { |
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| 63 | static PythonInterpreter init_interpreter; |
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| 64 | return init_interpreter; |
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| 65 | } |
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| 66 | |
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| 67 | void start_python() |
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| 68 | { |
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| 69 | if (!Py_IsInitialized()) init_python(); |
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| 70 | set_python_defaults(); |
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| 71 | } |
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| 72 | |
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| 73 | void init_python() |
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| 74 | { |
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| 75 | Py_Initialize(); |
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| 76 | m_owns_python = true; |
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| 77 | } |
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| 78 | |
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| 79 | void set_python_defaults() |
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| 80 | { |
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| 81 | // Sone python modules needs argc, argv set for some reason |
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| 82 | char* argv = ""; |
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| 83 | PySys_SetArgv(1, &argv); |
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| 84 | PyRun_SimpleString("from sys import path, modules"); |
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| 85 | PyRun_SimpleString("_SINGULAR_IMPORTED = dict()"); |
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| 86 | |
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| 87 | char cmd[MAXPATHLEN + 20]; |
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| 88 | sprintf(cmd, "path.insert(0, '%s')", feGetResource('b')); |
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| 89 | PyRun_SimpleString(cmd); |
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| 90 | PyRun_SimpleString("del path"); // cleanup |
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| 91 | } |
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| 92 | |
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| 93 | id_type m_id; |
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| 94 | bool m_owns_python; |
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| 95 | }; |
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| 96 | |
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| 97 | /** @class PythonObject |
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| 98 | * This class defines an interface for calling PyObject from Singular. |
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| 99 | * |
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| 100 | * @note This class does not take care of the memory mangement, this is done in |
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| 101 | * the blackbox routines. |
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| 102 | **/ |
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| 103 | class PythonObject |
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| 104 | { |
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| 105 | typedef PythonObject self; |
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| 106 | |
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| 107 | public: |
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| 108 | typedef PyObject* ptr_type; |
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| 109 | struct sequence_tag{}; |
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| 110 | |
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| 111 | PythonObject(): m_ptr(Py_None) { } |
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| 112 | PythonObject(ptr_type ptr): m_ptr(ptr) {if (!ptr) handle_exception();} |
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| 113 | |
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| 114 | ptr_type check_context(ptr_type ptr) const { |
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| 115 | if(ptr) sync_contexts(); |
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| 116 | return ptr; |
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| 117 | } |
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| 118 | /// Unary operations |
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| 119 | self operator()(int op) const |
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| 120 | { |
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| 121 | switch(op) |
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| 122 | { |
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| 123 | case '(': return check_context(PyObject_CallObject(*this, NULL)); |
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| 124 | case ATTRIB_CMD: return PyObject_Dir(*this); |
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| 125 | case PROC_CMD: return *this; |
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| 126 | } |
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| 127 | |
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| 128 | if (op == PythonInterpreter::id()) |
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| 129 | return *this; |
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| 130 | |
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| 131 | Werror("unary op %d not implemented for pyobject", op); |
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| 132 | return self(); |
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| 133 | } |
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| 134 | |
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| 135 | /// Binary and n-ary operations |
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| 136 | self operator()(int op, const self& arg) const { |
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| 137 | |
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| 138 | switch(op) |
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| 139 | { |
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| 140 | case '+': return PyNumber_Add(*this, arg); |
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| 141 | case '-': return PyNumber_Subtract(*this, arg); |
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| 142 | case '*': return PyNumber_Multiply(*this, arg); |
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| 143 | case '/': return PyNumber_Divide(*this, arg); |
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| 144 | case '^': return PyNumber_Power(*this, arg, Py_None); |
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| 145 | case '(': return check_context(PyObject_CallObject(*this, arg)); |
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| 146 | case '[': return operator[](arg); |
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| 147 | case KILLATTR_CMD: return del_attr(arg); |
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| 148 | case LIST_CMD: return args2list(arg); |
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| 149 | case '.': case COLONCOLON: case ATTRIB_CMD: return attr(arg); |
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| 150 | } |
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| 151 | Werror("binary op %d not implemented for pyobject!", op); |
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| 152 | |
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| 153 | return self(); |
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| 154 | } |
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| 155 | |
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| 156 | /// Ternary operations |
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| 157 | self operator()(int op, const self& arg1, const self& arg2) const |
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| 158 | { |
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| 159 | switch(op) |
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| 160 | { |
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| 161 | case ATTRIB_CMD: PyObject_SetAttr(*this, arg1, arg2); return self(); |
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| 162 | } |
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| 163 | |
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| 164 | Werror("ternary op %d not implemented for pyobject!", op); |
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| 165 | return self(); |
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| 166 | } |
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| 167 | |
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| 168 | /// Get item |
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| 169 | self operator[](const self& idx) const { return PyObject_GetItem(*this, idx); } |
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| 170 | self operator[](long idx) const { return operator[](PyInt_FromLong(idx)); } |
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| 171 | |
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| 172 | /// Get actual PyObject* |
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| 173 | operator const ptr_type() const { return m_ptr; } |
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| 174 | |
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| 175 | /// Get representative as C-style string |
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| 176 | char* repr() const |
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| 177 | { |
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| 178 | return omStrDup(PyString_AsString(PyObject_Repr(*this))); |
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| 179 | } |
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| 180 | |
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| 181 | /// Extract C-style string |
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| 182 | char* str() const { return omStrDup(PyString_AsString(*this)); } |
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| 183 | |
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| 184 | Py_ssize_t size() const { return PyObject_Size(m_ptr); } |
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| 185 | |
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| 186 | BOOLEAN assign_to(leftv result) |
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| 187 | { |
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| 188 | return (m_ptr == Py_None? none_to(result): python_to(result)); |
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| 189 | } |
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| 190 | |
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| 191 | void import_as(const char* name) const { |
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| 192 | idhdl handle = enterid(omStrDup(name), 0, DEF_CMD, |
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| 193 | &IDROOT, FALSE); |
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| 194 | |
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| 195 | if (handle) |
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| 196 | { |
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| 197 | IDDATA(handle) = (char*)m_ptr; |
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| 198 | Py_XINCREF(m_ptr); |
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| 199 | IDTYP(handle) = PythonInterpreter::id(); |
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| 200 | } |
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| 201 | else { Werror("Importing pyobject to Singular failed"); } |
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| 202 | } |
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| 203 | |
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| 204 | int compare(int op, const self& arg) const |
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| 205 | { return PyObject_RichCompareBool(*this, arg, py_opid(op)); } |
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| 206 | |
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| 207 | |
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| 208 | self attr(const self& arg) const { return PyObject_GetAttr(*this, arg); } |
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| 209 | |
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| 210 | self del_attr(const self& arg) const |
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| 211 | { |
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| 212 | if (!PyObject_HasAttr(*this, arg)) |
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| 213 | Werror("Cannot delete attribute %s.", arg.repr()); |
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| 214 | else |
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| 215 | PyObject_DelAttr(*this, arg); |
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| 216 | |
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| 217 | return self(); |
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| 218 | } |
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| 219 | |
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| 220 | protected: |
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| 221 | self args2list(const self& args) const |
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| 222 | { |
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| 223 | self pylist(PyList_New(0)); |
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| 224 | PyList_Append(pylist, *this); |
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| 225 | if(PyTuple_Check(args)) pylist.append_iter(PyObject_GetIter(args)); |
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| 226 | else PyList_Append(pylist, args); |
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| 227 | |
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| 228 | return pylist; |
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| 229 | } |
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| 230 | |
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| 231 | void handle_exception() { |
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| 232 | |
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| 233 | PyObject *pType, *pMessage, *pTraceback; |
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| 234 | PyErr_Fetch(&pType, &pMessage, &pTraceback); |
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| 235 | |
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| 236 | Werror("pyobject error occured"); |
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| 237 | Werror(PyString_AsString(pMessage)); |
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| 238 | |
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| 239 | Py_XDECREF(pType); |
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| 240 | Py_XDECREF(pMessage); |
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| 241 | Py_XDECREF(pTraceback); |
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| 242 | |
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| 243 | PyErr_Clear(); |
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| 244 | } |
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| 245 | |
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| 246 | void append_iter(self iterator) { |
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| 247 | ptr_type item; |
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| 248 | while (item = PyIter_Next(iterator)) { |
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| 249 | PyList_Append(*this, item); |
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| 250 | Py_DECREF(item); |
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| 251 | } |
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| 252 | } |
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| 253 | |
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| 254 | int py_opid(int op) const{ |
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| 255 | switch(op) |
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| 256 | { |
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| 257 | case '<': return Py_LT; |
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| 258 | case '>': return Py_GT; |
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| 259 | case EQUAL_EQUAL: return Py_EQ; |
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| 260 | case NOTEQUAL: return Py_NE; |
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| 261 | case GE: return Py_GE; |
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| 262 | case LE: return Py_LE; |
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| 263 | } |
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| 264 | return -1; |
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| 265 | } |
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| 266 | |
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| 267 | private: |
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| 268 | BOOLEAN none_to(leftv result) const |
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| 269 | { |
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| 270 | result->data = NULL; |
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| 271 | result->rtyp = NONE; |
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| 272 | return FALSE; |
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| 273 | } |
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| 274 | |
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| 275 | BOOLEAN python_to(leftv result) const |
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| 276 | { |
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| 277 | result->data = m_ptr; |
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| 278 | result->rtyp = PythonInterpreter::id(); |
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| 279 | return !m_ptr; |
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| 280 | } |
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| 281 | |
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| 282 | /// The actual pointer |
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| 283 | ptr_type m_ptr; |
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| 284 | }; |
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| 285 | |
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| 286 | |
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| 287 | |
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| 288 | /** @class PythonCastStatic |
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| 289 | * This template class does conversion of Singular objects to python objects on |
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| 290 | * compile-time. |
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| 291 | * |
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| 292 | * @note The Singular objects are assumed to be equivalent to the template argument. |
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| 293 | **/ |
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| 294 | template <class CastType = PythonObject::ptr_type> |
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| 295 | class PythonCastStatic: |
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| 296 | public PythonObject { |
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| 297 | public: |
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| 298 | |
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| 299 | PythonCastStatic(void* value): |
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| 300 | PythonObject(get(reinterpret_cast<CastType>(value))) {} |
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| 301 | |
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| 302 | PythonCastStatic(leftv value): |
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| 303 | PythonObject(get(reinterpret_cast<CastType>(value->Data()))) {} |
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| 304 | |
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| 305 | private: |
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| 306 | ptr_type get(ptr_type value) { return value; } |
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| 307 | ptr_type get(long value) { return PyInt_FromLong(value); } |
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| 308 | ptr_type get(const char* value) { return PyString_FromString(value); } |
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| 309 | ptr_type get(char* value) { return get(const_cast<const char*>(value)); } |
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| 310 | ptr_type get(lists value); // inlined after PythonObjectDynamic |
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| 311 | }; |
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| 312 | |
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| 313 | |
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| 314 | |
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| 315 | /** @class PythonCastDynamic |
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| 316 | * This class does conversion of Singular objects to python objects on runtime. |
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| 317 | * |
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| 318 | **/ |
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| 319 | class PythonCastDynamic: |
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| 320 | public PythonObject { |
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| 321 | typedef PythonCastDynamic self; |
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| 322 | |
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| 323 | public: |
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| 324 | PythonCastDynamic(leftv value): PythonObject(get(value, value->Typ())) {} |
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| 325 | |
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| 326 | private: |
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| 327 | PythonObject get(leftv value, int typeId) |
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| 328 | { |
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| 329 | if (typeId == PythonInterpreter::id()) return PythonCastStatic<>(value); |
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| 330 | |
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| 331 | switch (typeId) |
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| 332 | { |
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| 333 | case INT_CMD: return PythonCastStatic<long>(value); |
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| 334 | case STRING_CMD: return PythonCastStatic<const char*>(value); |
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| 335 | case LIST_CMD: return PythonCastStatic<lists>(value); |
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| 336 | // case UNKNOWN: return PythonCastStatic<const char*>((void*)value->Name()); |
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| 337 | } |
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| 338 | |
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[011fb62] | 339 | Werror("type # %d incompatible with pyobject", typeId); |
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[1cb879] | 340 | return PythonObject(); |
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| 341 | } |
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| 342 | }; |
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| 343 | |
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| 344 | template <class CastType> |
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| 345 | inline PythonObject::ptr_type |
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| 346 | PythonCastStatic<CastType>::get(lists value) |
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| 347 | { |
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| 348 | ptr_type pylist(PyList_New(0)); |
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[92d684] | 349 | for (size_t i = 0; i <= value->nr; ++i) |
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[1cb879] | 350 | PyList_Append(pylist, PythonCastDynamic((value->m) + i)); |
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| 351 | |
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| 352 | return pylist; |
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| 353 | } |
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| 354 | |
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| 355 | /// Template specialization for getting handling sequence |
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| 356 | template <> |
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| 357 | class PythonCastStatic<PythonObject::sequence_tag>: |
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| 358 | public PythonObject |
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| 359 | { |
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| 360 | public: |
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| 361 | |
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| 362 | PythonCastStatic(leftv value): |
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| 363 | PythonObject(PyTuple_New(size(value))) { append_to(value); } |
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| 364 | |
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| 365 | |
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| 366 | private: |
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[92d684] | 367 | size_t size(leftv iter, size_t distance = 0) const |
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[1cb879] | 368 | { |
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| 369 | if (iter) { do { ++distance; } while(iter = iter->next); }; |
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| 370 | return distance; |
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| 371 | } |
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| 372 | |
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| 373 | void append_to(leftv iter) const |
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| 374 | { |
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[92d684] | 375 | for(size_t idx = 0; iter != NULL; iter = iter->next) |
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[1cb879] | 376 | PyTuple_SetItem(*this, idx++, PythonCastDynamic(iter)); |
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| 377 | } |
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| 378 | }; |
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| 379 | |
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| 380 | |
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| 381 | PythonObject get_attrib_name(leftv arg) |
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| 382 | { |
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| 383 | typedef PythonCastStatic<const char*> result_type; |
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| 384 | if (arg->Typ() == STRING_CMD) |
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| 385 | return result_type(arg); |
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| 386 | |
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| 387 | return result_type((void*)arg->Name()); |
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| 388 | } |
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| 389 | |
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| 390 | /// Evaluate string in python |
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| 391 | PythonObject python_eval(const char* arg) { |
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| 392 | |
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| 393 | PyObject* globals = PyModule_GetDict(PyImport_Import(PyString_FromString("__main__"))); |
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| 394 | return PyRun_String(arg, Py_eval_input, globals, globals); |
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| 395 | } |
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| 396 | |
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| 397 | /// Evaluate string in python from Singular |
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| 398 | BOOLEAN python_eval(leftv result, leftv arg) { |
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| 399 | if ( !arg || (arg->Typ() != STRING_CMD) ) { |
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| 400 | Werror("expected python_eval('string')"); |
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| 401 | return TRUE; |
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| 402 | } |
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| 403 | |
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| 404 | return python_eval(reinterpret_cast<const char*>(arg->Data())).assign_to(result); |
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| 405 | } |
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| 406 | |
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| 407 | |
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| 408 | /// Execute string in python from Singular |
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| 409 | BOOLEAN python_run(leftv result, leftv arg) |
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| 410 | { |
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| 411 | if ( !arg || (arg->Typ() != STRING_CMD) ) { |
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| 412 | Werror("expected python_run('string')"); |
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| 413 | return TRUE; |
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| 414 | } |
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| 415 | |
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| 416 | PyRun_SimpleString(reinterpret_cast<const char*>(arg->Data())); |
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| 417 | sync_contexts(); |
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| 418 | return PythonCastStatic<>(Py_None).assign_to(result); |
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| 419 | } |
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| 420 | |
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| 421 | PythonObject names_from_module(const char* module_name) |
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| 422 | { |
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| 423 | char buffer[strlen(module_name) + 30]; |
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| 424 | sprintf (buffer, "SINGULAR_MODULE_NAME = '%s'", module_name); |
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| 425 | PyRun_SimpleString(buffer); |
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| 426 | PyRun_SimpleString("from sys import modules"); |
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| 427 | PyRun_SimpleString("exec('from ' + SINGULAR_MODULE_NAME + ' import *')"); |
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| 428 | |
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| 429 | return python_eval("[str for str in dir(modules[SINGULAR_MODULE_NAME]) if str[0] != '_']"); |
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| 430 | } |
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| 431 | |
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| 432 | void from_module_import_all(const char* module_name) |
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| 433 | { |
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| 434 | char buffer[strlen(module_name) + 20]; |
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| 435 | sprintf (buffer, "from %s import *", module_name); |
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| 436 | PyRun_SimpleString(buffer); |
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| 437 | } |
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| 438 | |
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| 439 | /// import python module and export identifiers in Singular namespace |
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| 440 | BOOLEAN python_import(leftv result, leftv value) { |
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| 441 | |
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| 442 | if ((value == NULL) || (value->Typ()!= STRING_CMD)) { |
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| 443 | Werror("expected python_import('string')"); |
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| 444 | return TRUE; |
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| 445 | } |
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| 446 | |
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| 447 | from_module_import_all(reinterpret_cast<const char*>(value->Data())); |
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| 448 | sync_contexts(); |
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| 449 | |
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| 450 | return PythonCastStatic<>(Py_None).assign_to(result); |
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| 451 | } |
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| 452 | |
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| 453 | /// blackbox support - initialization |
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| 454 | void* pyobject_Init(blackbox*) |
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| 455 | { |
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| 456 | return Py_None; |
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| 457 | } |
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| 458 | |
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| 459 | /// blackbox support - convert to string representation |
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| 460 | char* pyobject_String(blackbox *b, void* ptr) |
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| 461 | { |
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| 462 | return PythonCastStatic<>(ptr).repr(); |
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| 463 | } |
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| 464 | |
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| 465 | /// blackbox support - copy element |
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| 466 | void* pyobject_Copy(blackbox*b, void* ptr) |
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| 467 | { |
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| 468 | Py_XINCREF(ptr); |
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| 469 | return ptr; |
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| 470 | } |
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| 471 | |
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| 472 | /// blackbox support - assign element |
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| 473 | BOOLEAN pyobject_Assign(leftv l, leftv r) |
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| 474 | { |
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| 475 | Py_XDECREF(l->Data()); |
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| 476 | PyObject* result = PythonCastDynamic(r); |
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| 477 | Py_XINCREF(result); |
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| 478 | |
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| 479 | if (l->rtyp == IDHDL) |
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| 480 | IDDATA((idhdl)l->data) = (char *)result; |
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| 481 | else |
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| 482 | l->data = (void *)result; |
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| 483 | |
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| 484 | return !result; |
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| 485 | } |
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| 486 | |
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| 487 | |
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| 488 | /// blackbox support - unary operations |
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| 489 | BOOLEAN pyobject_Op1(int op, leftv res, leftv head) |
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| 490 | { |
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| 491 | switch(op) |
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| 492 | { |
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| 493 | case INT_CMD: // built-in return types first |
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| 494 | { |
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| 495 | long value = PyInt_AsLong(PythonCastStatic<>(head)); |
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| 496 | if( (value == -1) && PyErr_Occurred() ) { |
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| 497 | Werror("pyobject cannot be converted to integer"); |
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| 498 | PyErr_Clear(); |
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| 499 | return TRUE; |
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| 500 | } |
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| 501 | res->data = (void*) value; |
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| 502 | res->rtyp = INT_CMD; |
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| 503 | return FALSE; |
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| 504 | } |
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| 505 | case TYPEOF_CMD: |
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| 506 | res->data = (void*) omStrDup("pyobject"); |
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| 507 | res->rtyp = STRING_CMD; |
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| 508 | return FALSE; |
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| 509 | |
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| 510 | case LIST_CMD: |
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| 511 | return FALSE; |
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| 512 | |
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| 513 | } |
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| 514 | return PythonCastStatic<>(head)(op).assign_to(res); |
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| 515 | } |
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| 516 | |
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| 517 | |
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| 518 | /// blackbox support - binary operations |
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| 519 | BOOLEAN pyobject_Op2(int op, leftv res, leftv arg1, leftv arg2) |
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| 520 | { |
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| 521 | PythonCastStatic<> lhs(arg1); |
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| 522 | |
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| 523 | switch(op) // built-in return types and special cases first |
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| 524 | { |
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| 525 | case '<': case '>': case EQUAL_EQUAL: case NOTEQUAL: case GE: case LE: |
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| 526 | { |
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| 527 | res->data = (void *)lhs.compare(op, PythonCastDynamic(arg2)); |
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| 528 | res->rtyp = INT_CMD; |
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| 529 | return FALSE; |
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| 530 | } |
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| 531 | case '.': case COLONCOLON: case ATTRIB_CMD: |
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| 532 | return lhs.attr(get_attrib_name(arg2)).assign_to(res); |
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| 533 | } |
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| 534 | PythonCastDynamic rhs(arg2); |
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| 535 | return lhs(op, rhs).assign_to(res); |
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| 536 | } |
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| 537 | |
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| 538 | /// blackbox support - ternary operations |
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| 539 | BOOLEAN pyobject_Op3(int op, leftv res, leftv arg1, leftv arg2, leftv arg3) |
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| 540 | { |
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| 541 | PythonCastStatic<> lhs(arg1); |
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| 542 | PythonCastDynamic rhs1(arg2); |
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| 543 | PythonCastDynamic rhs2(arg3); |
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| 544 | |
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| 545 | return lhs(op, rhs1, rhs2).assign_to(res); |
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| 546 | } |
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| 547 | |
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| 548 | |
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| 549 | /// blackbox support - n-ary operations |
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| 550 | BOOLEAN pyobject_OpM(int op, leftv res, leftv args) |
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| 551 | { |
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| 552 | typedef PythonCastStatic<PythonObject::sequence_tag> seq_type; |
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| 553 | |
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| 554 | switch(op) // built-in return types first |
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| 555 | { |
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| 556 | case STRING_CMD: |
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| 557 | { |
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| 558 | blackbox* a = getBlackboxStuff(args->Typ()); |
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| 559 | res->data = (void *)a->blackbox_String(a, args->Data()); |
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| 560 | res->rtyp = STRING_CMD; |
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| 561 | return FALSE; |
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| 562 | } |
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| 563 | } |
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| 564 | |
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| 565 | typedef PythonCastStatic<PythonObject::sequence_tag> seq_type; |
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| 566 | return PythonCastStatic<>(args)(op, seq_type(args->next)).assign_to(res); |
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| 567 | } |
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| 568 | |
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| 569 | /// blackbox support - destruction |
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| 570 | void pyobject_destroy(blackbox *b, void* ptr) |
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| 571 | { |
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| 572 | Py_XDECREF(ptr); |
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| 573 | } |
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| 574 | |
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| 575 | PyObject* get_current_definition(const char* name) { |
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| 576 | idhdl handle = ggetid(name); |
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| 577 | if (!handle || (IDTYP(handle) != PythonInterpreter::id())) return NULL; |
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| 578 | PythonCastStatic<PyObject*> value(IDDATA(handle)); |
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| 579 | return value; |
---|
| 580 | } |
---|
| 581 | |
---|
| 582 | /// getting stuff from python to Singular namespace |
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| 583 | void sync_contexts() |
---|
| 584 | { |
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| 585 | PyRun_SimpleString("_SINGULAR_NEW = modules['__main__'].__dict__.copy()"); |
---|
| 586 | |
---|
| 587 | PythonObject newElts = python_eval("[(_k, _e) \ |
---|
| 588 | for (_k, _e) in _SINGULAR_NEW.iteritems() \ |
---|
| 589 | if _k not in _SINGULAR_IMPORTED or not _SINGULAR_IMPORTED[_k] is _e]"); |
---|
| 590 | |
---|
| 591 | long len = newElts.size(); |
---|
| 592 | for (long idx = 0; idx < len; ++idx) |
---|
| 593 | { |
---|
| 594 | char* name = newElts[idx][0].str(); |
---|
| 595 | if (name && (*name != '\0') && (*name != '_')) |
---|
| 596 | { |
---|
| 597 | Py_XDECREF(get_current_definition(name)); |
---|
| 598 | newElts[idx][1].import_as(name); |
---|
| 599 | } |
---|
| 600 | |
---|
| 601 | } |
---|
| 602 | |
---|
| 603 | PythonObject deletedElts = |
---|
| 604 | python_eval("list(set(_SINGULAR_IMPORTED.iterkeys()) - \ |
---|
| 605 | set(_SINGULAR_NEW.iterkeys()))"); |
---|
| 606 | len = deletedElts.size(); |
---|
| 607 | |
---|
| 608 | for (long idx = 0; idx < len; ++idx) |
---|
| 609 | { |
---|
| 610 | char* name = deletedElts[idx].str(); |
---|
| 611 | if (name && (*name != '\0') && (*name != '_')) |
---|
| 612 | killid(name, &IDROOT); |
---|
| 613 | } |
---|
| 614 | |
---|
| 615 | PyRun_SimpleString("_SINGULAR_IMPORTED =_SINGULAR_NEW"); |
---|
| 616 | PyRun_SimpleString("del _SINGULAR_NEW"); |
---|
| 617 | } |
---|
| 618 | |
---|
| 619 | |
---|
| 620 | // forward declaration |
---|
| 621 | int iiAddCproc(char *libname, char *procname, BOOLEAN pstatic, |
---|
| 622 | BOOLEAN(*func)(leftv res, leftv v)); |
---|
| 623 | |
---|
| 624 | #define ADD_C_PROC(name) iiAddCproc("", (char*)#name, FALSE, name); |
---|
| 625 | |
---|
| 626 | |
---|
| 627 | void pyobject_init() |
---|
| 628 | { |
---|
| 629 | blackbox *b = (blackbox*)omAlloc0(sizeof(blackbox)); |
---|
| 630 | b->blackbox_destroy = pyobject_destroy; |
---|
| 631 | b->blackbox_String = pyobject_String; |
---|
| 632 | b->blackbox_Init = pyobject_Init; |
---|
| 633 | b->blackbox_Copy = pyobject_Copy; |
---|
| 634 | b->blackbox_Assign = pyobject_Assign; |
---|
| 635 | b->blackbox_Op1 = pyobject_Op1; |
---|
| 636 | b->blackbox_Op2 = pyobject_Op2; |
---|
| 637 | b->blackbox_Op3 = pyobject_Op3; |
---|
| 638 | b->blackbox_OpM = pyobject_OpM; |
---|
| 639 | |
---|
| 640 | PythonInterpreter::init(setBlackboxStuff(b,"pyobject")); |
---|
| 641 | |
---|
| 642 | ADD_C_PROC(python_import); |
---|
| 643 | ADD_C_PROC(python_eval); |
---|
| 644 | ADD_C_PROC(python_run); |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | extern "C" { void mod_init() { pyobject_init(); } } |
---|
| 648 | |
---|