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# -*- coding: utf-8 -*-
# *****************************************************************************
# Copyright (c) 2020, Intel Corporation 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.
#
# 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 HOLDER 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.
# *****************************************************************************
"""
| This script can be used to auto-generate SDC source files from common templates
"""
import sys
import inspect
from pathlib import Path
import sdc.sdc_function_templates as templates_module
encoding_info = '# -*- coding: utf-8 -*-'
copyright_header = '''\
# *****************************************************************************
# Copyright (c) 2020, Intel Corporation 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.
#
# 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 HOLDER 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.
# *****************************************************************************
'''
docstring_header = '''\
"""
| This file contains overloads for various extension types auto-generated with autogen_sources.py
"""
'''
arithmetic_binops_symbols = {
'add': '+',
'div': '/',
'sub': '-',
'mul': '*',
'truediv': '/',
'floordiv': '//',
'mod': '%',
'pow': '**',
}
comparison_binops_symbols = {
'lt': '<',
'gt': '>',
'le': '<=',
'ge': '>=',
'ne': '!=',
'eq': '==',
}
target_rel_filename = 'sdc/sdc_autogenerated.py'
if __name__ == '__main__':
sdc_root_path = Path(__file__).absolute().parents[1]
target_file_path = sdc_root_path.joinpath(target_rel_filename)
# read templates_module as text and extract import section to be copied into auto-generated target file
module_text = inspect.getsource(templates_module)
module_text_lines = module_text.splitlines(keepends=True)
# extract copyright text from templates file
copyright_line_numbers = [k for k, line in enumerate(module_text_lines) if '# *****' in line]
copyright_section_text = ''.join(module_text_lines[copyright_line_numbers[0]: copyright_line_numbers[1] + 1])
# extract copyright text from templates file - this only works if imports in it
# are placed contigiously, i.e. at one place and not intermixed with code
imports_line_numbers = [k for k, line in enumerate(module_text_lines) if 'import ' in line]
imports_start_line, import_end_line = min(imports_line_numbers), max(imports_line_numbers)
import_section_text = ''.join(module_text_lines[imports_start_line: import_end_line + 1])
# templates for arithmetic methods
template_func_binop_def = inspect.getsource(templates_module.sdc_binop)
template_func_binop_ovld = inspect.getsource(templates_module.sdc_binop_ovld)
template_series_binop = inspect.getsource(templates_module.sdc_pandas_series_binop)
# templates for comparison methods
template_func_comp_binop_def = inspect.getsource(templates_module.sdc_comp_binop)
template_func_comp_binop_ovld = inspect.getsource(templates_module.sdc_comp_binop_ovld)
template_series_comp_binop = inspect.getsource(templates_module.sdc_pandas_series_comp_binop)
# templates for operators
template_series_operator = inspect.getsource(templates_module.sdc_pandas_series_operator_binop)
template_series_comp_operator = inspect.getsource(templates_module.sdc_pandas_series_operator_comp_binop)
template_str_arr_comp_binop = inspect.getsource(templates_module.sdc_str_arr_operator_comp_binop)
exit_status = -1
try:
# open the target file for writing and do the main work
with target_file_path.open('w', newline='') as file:
file.write(f'{encoding_info}\n')
file.write(f'{copyright_section_text}\n')
file.write(f'{docstring_header}\n')
file.write(import_section_text)
# certaing modifications are needed to be applied for templates, so
# verify correctness of produced code manually
for name in arithmetic_binops_symbols:
func_text = template_func_binop_def.replace('binop', name)
file.write(f'\n\n{func_text}')
func_text = template_func_binop_ovld.replace('def ', f"@sdc_overload(sdc_{name})\ndef ", 1)
func_text = func_text.replace('binop', name)
func_text = func_text.replace(' + ', f' {arithmetic_binops_symbols[name]} ')
file.write(f'\n\n{func_text}')
func_text = template_series_binop.replace('binop', name)
func_text = func_text.replace('def ', f"@sdc_overload_method(SeriesType, '{name}')\ndef ", 1)
file.write(f'\n\n{func_text}')
for name in comparison_binops_symbols:
func_text = template_func_comp_binop_def.replace('comp_binop', name)
file.write(f'\n\n{func_text}')
func_text = template_func_comp_binop_ovld.replace('def ', f"@sdc_overload(sdc_{name})\ndef ", 1)
func_text = func_text.replace('comp_binop', name)
func_text = func_text.replace(' < ', f' {comparison_binops_symbols[name]} ')
file.write(f'\n\n{func_text}')
func_text = template_series_comp_binop.replace('comp_binop', name)
func_text = func_text.replace('def ', f"@sdc_overload_method(SeriesType, '{name}')\ndef ", 1)
file.write(f'\n\n{func_text}')
for name in arithmetic_binops_symbols:
if name != "div":
func_text = template_series_operator.replace('binop', name)
func_text = func_text.replace('def ', f'@sdc_overload(operator.{name})\ndef ', 1)
file.write(f'\n\n{func_text}')
for name in comparison_binops_symbols:
func_text = template_series_comp_operator.replace('comp_binop', name)
func_text = func_text.replace('def ', f'@sdc_overload(operator.{name})\ndef ', 1)
file.write(f'\n\n{func_text}')
for name in comparison_binops_symbols:
func_text = template_str_arr_comp_binop.replace('comp_binop', name)
func_text = func_text.replace(' < ', f' {comparison_binops_symbols[name]} ')
if name == 'ne':
func_text = func_text.replace('and not', 'or')
func_text = func_text.replace('def ', f'@sdc_overload(operator.{name})\ndef ', 1)
file.write(f'\n\n{func_text}')
except Exception as e:
print('Exception of type {}: {} \nwhile writing to a file: {}\n'.format(
type(e).__name__, e, target_file_path), file=sys.stderr)
exit_status = 1
else:
exit_status = 0
if not exit_status:
print('Auto-generation sctipt completed successfully')
else:
print('Auto-generation failed, exit_status: {}'.format(exit_status))
sys.exit(exit_status)