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author | John Wiegley <johnw@newartisans.com> | 2009-02-24 16:08:49 -0400 |
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committer | John Wiegley <johnw@newartisans.com> | 2009-02-24 16:08:49 -0400 |
commit | 1799ed3a2adf1af7ed08b3b3ded3594a4c0e184e (patch) | |
tree | ba0ad178f2ceefa0fad5975f6247e3f20de41344 /src/py_value.cc | |
parent | 5ad9bc3951fcbecb5fcf7c1127e8f91e547fd37b (diff) | |
download | fork-ledger-1799ed3a2adf1af7ed08b3b3ded3594a4c0e184e.tar.gz fork-ledger-1799ed3a2adf1af7ed08b3b3ded3594a4c0e184e.tar.bz2 fork-ledger-1799ed3a2adf1af7ed08b3b3ded3594a4c0e184e.zip |
Moved python/*.cc files into src/
This is because soon, I intend to have real Python source files in
python/.
Diffstat (limited to 'src/py_value.cc')
-rw-r--r-- | src/py_value.cc | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/src/py_value.cc b/src/py_value.cc new file mode 100644 index 00000000..a4de7c04 --- /dev/null +++ b/src/py_value.cc @@ -0,0 +1,304 @@ +/* + * Copyright (c) 2003-2009, John Wiegley. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of New Artisans LLC nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "pyinterp.h" +#include "pyutils.h" +#include "value.h" + +namespace ledger { + +using namespace boost::python; + +BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS(value_overloads, value, 0, 2) + +namespace { + expr_t py_value_getattr(const value_t& value, const string& name) + { + if (value.is_pointer()) { + if (scope_t * scope = value.as_pointer<scope_t>()) + return expr_t(scope->lookup(name), scope); + } + throw_(value_error, "Cannot lookup attributes in " << value.label()); + return expr_t(); + } + + string py_dump(const value_t& value) { + std::ostringstream buf; + value.dump(buf); + return buf.str(); + } + + string py_dump_relaxed(const value_t& value) { + std::ostringstream buf; + value.dump(buf, true); + return buf.str(); + } + + void py_set_string(value_t& amount, const string& str) { + return amount.set_string(str); + } + +#define EXC_TRANSLATOR(type) \ + void exc_translate_ ## type(const type& err) { \ + PyErr_SetString(PyExc_ArithmeticError, err.what()); \ + } + + EXC_TRANSLATOR(value_error) +} + +void export_value() +{ + class_< value_t > ("Value") +#if 0 + .def("initialize", &value_t::initialize) + .staticmethod("initialize") + .def("shutdown", &value_t::shutdown) + .staticmethod("shutdown") +#endif + + .def(init<double>()) + .def(init<long>()) + .def(init<std::string>()) + .def(init<date_t>()) + .def(init<datetime_t>()) + + .def(init<value_t>()) + + .def("is_equal_to", &value_t::is_equal_to) + .def("is_less_than", &value_t::is_less_than) + .def("is_greater_than", &value_t::is_greater_than) + + .def(self == self) + .def(self == long()) + .def(long() == self) + .def(self == double()) + .def(double() == self) + + .def(self != self) + .def(self != long()) + .def(long() != self) + .def(self != double()) + .def(double() != self) + + .def(! self) + + .def(self < self) + .def(self < long()) + .def(long() < self) + .def(self < double()) + .def(double() < self) + + .def(self <= self) + .def(self <= long()) + .def(long() <= self) + .def(self <= double()) + .def(double() <= self) + + .def(self > self) + .def(self > long()) + .def(long() > self) + .def(self > double()) + .def(double() > self) + + .def(self >= self) + .def(self >= long()) + .def(long() >= self) + .def(self >= double()) + .def(double() >= self) + + .def(self += self) + .def(self += long()) + .def(self += double()) + + .def(self + self) + .def(self + long()) + .def(long() + self) + .def(self + double()) + .def(double() + self) + + .def(self -= self) + .def(self -= long()) + .def(self -= double()) + + .def(self - self) + .def(self - long()) + .def(long() - self) + .def(self - double()) + .def(double() - self) + + .def(self *= self) + .def(self *= long()) + .def(self *= double()) + + .def(self * self) + .def(self * long()) + .def(long() * self) + .def(self * double()) + .def(double() * self) + + .def(self /= self) + .def(self /= long()) + .def(self /= double()) + + .def(self / self) + .def(self / long()) + .def(long() / self) + .def(self / double()) + .def(double() / self) + + .def("negated", &value_t::negated) + .def("in_place_negate", &value_t::in_place_negate) + .def("in_place_not", &value_t::in_place_not) + .def(- self) + + .def("abs", &value_t::abs) + .def("__abs__", &value_t::abs) + + .def("rounded", &value_t::rounded) + .def("unrounded", &value_t::unrounded) + + .def("reduced", &value_t::reduced) + .def("in_place_reduce", &value_t::in_place_reduce) + + .def("unreduced", &value_t::unreduced) + .def("in_place_unreduce", &value_t::in_place_unreduce) + + .def("value", &value_t::value, value_overloads()) + + .def("__nonzero__", &value_t::is_nonzero) + .def("is_nonzero", &value_t::is_nonzero) + .def("is_realzero", &value_t::is_realzero) + .def("is_zero", &value_t::is_zero) + .def("is_null", &value_t::is_null) + + .def("type", &value_t::type) + .def("is_type", &value_t::is_type) + + .def("is_boolean", &value_t::is_boolean) + .def("set_boolean", &value_t::set_boolean) + + .def("is_boolean", &value_t::is_boolean) + .def("set_boolean", &value_t::set_boolean) + + .def("is_datetime", &value_t::is_datetime) + .def("set_datetime", &value_t::set_datetime) + + .def("is_date", &value_t::is_date) + .def("set_date", &value_t::set_date) + + .def("is_long", &value_t::is_long) + .def("set_long", &value_t::set_long) + + .def("is_amount", &value_t::is_amount) + .def("is_balance", &value_t::is_balance) + + .def("is_string", &value_t::is_string) + .def("set_string", py_set_string) + + .def("is_sequence", &value_t::is_sequence) + .def("set_sequence", &value_t::set_sequence) + + .def("to_boolean", &value_t::to_boolean) + .def("to_long", &value_t::to_long) + .def("__int__", &value_t::to_long) + .def("to_datetime", &value_t::to_datetime) + .def("to_date", &value_t::to_date) + .def("to_string", &value_t::to_string) + .def("to_sequence", &value_t::to_sequence) + + .def("__str__", py_dump_relaxed) + .def("__repr__", py_dump) + + .def("casted", &value_t::casted) + .def("in_place_cast", &value_t::in_place_cast) + + .def("simplified", &value_t::simplified) + .def("in_place_simplify", &value_t::in_place_simplify) + + // jww (2009-02-07): Allow annotating, and retrieving annotations + .def("strip_annotations", &value_t::strip_annotations) + + // jww (2009-01-28): Allow for transparent exchanging with sequence + // protocol objects in Python too; and conversion to a list. +#if 0 + // jww (2009-02-07): Methods to implement: + // Allow accepting and returning tuples as sequences + // count_commodities + // has_commodity(COMM) + // decompose + .def("__getitem__", &value_t::operator[]) +#endif + .def("push_back", &value_t::push_back) + .def("pop_back", &value_t::pop_back) + .def("size", &value_t::size) + + .def("label", &value_t::label) + + .def("dump", &value_t::dump) + .def("print", &value_t::print) + + .def("valid", &value_t::valid) + + .def("__getattr__", py_value_getattr) + ; + + enum_< value_t::type_t >("ValueType") + .value("VOID", value_t::VOID) + .value("BOOLEAN", value_t::BOOLEAN) + .value("DATETIME", value_t::DATETIME) + .value("DATE", value_t::DATE) + .value("INTEGER", value_t::INTEGER) + .value("AMOUNT", value_t::AMOUNT) + .value("BALANCE", value_t::BALANCE) + .value("STRING", value_t::STRING) + .value("SEQUENCE", value_t::SEQUENCE) + .value("POINTER", value_t::POINTER) + ; + + scope().attr("NULL_VALUE") = NULL_VALUE; + scope().attr("string_value") = &string_value; + scope().attr("value_context") = &value_context; + + register_optional_to_python<value_t>(); + + implicitly_convertible<double, value_t>(); + implicitly_convertible<long, value_t>(); + implicitly_convertible<string, value_t>(); + implicitly_convertible<date_t, value_t>(); + implicitly_convertible<datetime_t, value_t>(); + +#define EXC_TRANSLATE(type) \ + register_exception_translator<type>(&exc_translate_ ## type); + + EXC_TRANSLATE(value_error); +} + +} // namespace ledger |