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# Python bindings for Yasm: Pyrex input file for value.h
#
# Copyright (C) 2006 Michael Urman, Peter Johnson
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER 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 AUTHOR OR OTHER 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.
cdef extern from "libyasm/value.h":
cdef void yasm_value_initialize(yasm_value *value, yasm_expr *e,
unsigned int size)
cdef void yasm_value_init_sym(yasm_value *value, yasm_symrec *sym,
unsigned int size)
cdef void yasm_value_delete(yasm_value *value)
cdef int yasm_value_finalize(yasm_value *value, yasm_bytecode *precbc)
cdef int yasm_value_finalize_expr(yasm_value *value, yasm_expr *e,
yasm_bytecode *precbc, unsigned int size)
cdef yasm_intnum *yasm_value_get_intnum(yasm_value *value,
yasm_bytecode *bc)
cdef int yasm_value_output_basic(yasm_value *value, unsigned char *buf,
size_t destsize, yasm_bytecode *bc, int warn, yasm_arch *arch)
cdef void yasm_value_print(yasm_value *value, FILE *f, int indent_level)
cdef class Value:
cdef yasm_value value
def __new__(self, value=None, size=None):
cdef unsigned int sz
if size is None:
sz = 0
else:
sz = size;
yasm_value_initialize(&self.value, NULL, sz)
if value is None:
pass
elif isinstance(value, Expression):
yasm_value_initialize(&self.value,
yasm_expr_copy((<Expression>value).expr), sz)
elif isinstance(value, Symbol):
yasm_value_init_sym(&self.value, (<Symbol>value).sym, sz)
else:
raise TypeError("Invalid value type '%s'" % type(value))
def __dealloc__(self):
yasm_value_delete(&self.value)
def finalize(self, precbc=None):
if precbc is None:
return yasm_value_finalize(&self.value, NULL)
elif isinstance(precbc, Bytecode):
return yasm_value_finalize(&self.value, (<Bytecode>precbc).bc)
else:
raise TypeError("Invalid precbc type '%s'" % type(precbc))
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