115 lines
3.2 KiB
Python
Executable file
115 lines
3.2 KiB
Python
Executable file
#! /usr/bin/env python3
|
|
#
|
|
# genfacet.py
|
|
|
|
import json5
|
|
import argparse
|
|
from pathlib import Path
|
|
from jinja2 import Environment, FileSystemLoader
|
|
|
|
def load_idl(path):
|
|
with open(path) as f:
|
|
return json5.load(f)
|
|
|
|
def format_method_qualifiers(method):
|
|
""" Build qualifier string: const noexcept
|
|
"""
|
|
quals = []
|
|
if method.get('const', False):
|
|
quals.append('const')
|
|
if method.get('noexcept', False):
|
|
quals.append('noexcept')
|
|
|
|
return ' '.join(quals)
|
|
|
|
def format_args(args, include_names=True):
|
|
""" Format argument list for a method
|
|
"""
|
|
if not args:
|
|
return ''
|
|
if include_names:
|
|
return ', '.join(f"{p['type']} {p['name']}" for p in args)
|
|
else:
|
|
return ', '.join(p['type'] for p in args)
|
|
|
|
def format_arg_names(args):
|
|
""" Format argument names, for forwarding
|
|
"""
|
|
return ', '.join(p['name'] for p in args)
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('--input', required=True, help='input IDL JSON5 file')
|
|
parser.add_argument('--output', required=True, help='output directory')
|
|
args = parser.parse_args()
|
|
|
|
idl_fname = args.input
|
|
idl = load_idl(idl_fname)
|
|
output_dir = Path(args.output)
|
|
output_dir.mkdir(parents=False, exist_ok=True)
|
|
|
|
# setup jinja2
|
|
template_dir = Path(__file__).parent
|
|
#template_dir = Path(__file__).parent / 'codegen'
|
|
|
|
print(f'template_dir: [{template_dir}]')
|
|
|
|
env = Environment(loader = FileSystemLoader(template_dir),
|
|
trim_blocks = True,
|
|
lstrip_blocks = True)
|
|
|
|
# custom filters
|
|
env.filters['qualifiers'] = format_method_qualifiers
|
|
env.filters['args'] = format_args
|
|
env.filters['argnames'] = format_arg_names
|
|
|
|
facet_includes = idl['includes']
|
|
facet_ns1 = idl['namespace1']
|
|
facet_ns2 = idl['namespace2']
|
|
facet_name = idl['facet'] # e.g. Sequence
|
|
facet_brief = idl['brief']
|
|
facet_doc = '\n'.join(idl['doc'])
|
|
methods = idl['methods']
|
|
for method in methods:
|
|
method['doc'] = '\n'.join(method['doc'])
|
|
|
|
abstract_facet = f'A{facet_name}'
|
|
abstract_facet_fname = f'{abstract_facet}.hpp'
|
|
|
|
context = {
|
|
'genfacet': __file__,
|
|
'genfacet_input': args.input,
|
|
#
|
|
'facet_includes': facet_includes,
|
|
'facet_ns1': facet_ns1,
|
|
'facet_ns2': facet_ns2,
|
|
#'name': facet_name,
|
|
'idl_fname': idl_fname,
|
|
#
|
|
'abstract_facet_hpp_j2': 'abstract_facet.hpp.j2',
|
|
'abstract_facet': abstract_facet,
|
|
'abstract_facet_fname': abstract_facet_fname,
|
|
'abstract_facet_doc': facet_doc,
|
|
#
|
|
'methods': methods
|
|
}
|
|
|
|
# generate .hpp files
|
|
|
|
templates = {}
|
|
templates[abstract_facet_fname] = context['abstract_facet_hpp_j2']
|
|
|
|
for output_file, template_name in templates.items():
|
|
print(f'output_file: [{output_file}]')
|
|
print(f'template_name: [{template_name}]')
|
|
|
|
template = env.get_template(template_name)
|
|
content = template.render(**context)
|
|
|
|
(output_dir / output_file).write_text(content)
|
|
print(f"Generated {output_dir}/{output_file}")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|
|
|