#! /usr/bin/env python3 # 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_args_nonames(args): return format_args(args, False) def format_arg_names(args): """ Format argument names, for forwarding """ names = [p['name'] for p in args] return ', '.join([f"_dcast({names[0]})"] + names[1:]) def format_args_nodata(args): """ Format arguments, but exclude data arg """ return format_args(args[1:]) def format_args_routing(args): """ Format argument names, for routing """ names = [p['name'] for p in args] return ', '.join([f"O::data()"] + names[1:]) def main(): parser = argparse.ArgumentParser() parser.add_argument('--templates', required=True, help='.j2 template directory') parser.add_argument('--input', required=True, help='input IDL JSON5 file') parser.add_argument('--output-impl-hpp', required=True, help='.hpp detail subdir') parser.add_argument('--output-hpp', required=True, help='.hpp output directory') parser.add_argument('--output-cpp', required=True, help='.cpp output directory') args = parser.parse_args() idl_fname = args.input idl = load_idl(idl_fname) # output_hpp_dir = Path(args.output_hpp) output_hpp_dir.mkdir(parents=False, exist_ok=True) # output_impl_hpp_subdir = Path(args.output_impl_hpp) output_impl_hpp_dir = Path(args.output_hpp) / output_impl_hpp_subdir output_impl_hpp_dir.mkdir(parents=False, exist_ok=True) # output_cpp_dir = Path(args.output_cpp) output_cpp_dir.mkdir(parents=False, exist_ok=True) # setup jinja2 template_dir = Path(args.templates) #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['argtypes'] = format_args_nonames env.filters['argnames'] = format_arg_names env.filters['argsnodata'] = format_args_nodata env.filters['argrouting'] = format_args_routing # true to insert doxygen markup in generated .hpp/.cpp files using_dox = idl['using_doxygen'] # extra include files (or perhaps other definitions) facet_includes = idl['includes'] facet_ns1 = idl['namespace1'] facet_ns2 = idl['namespace2'] facet_name = idl['facet'] # e.g. Sequence facet_name_lc = facet_name.lower() facet_brief = idl['brief'] facet_doc = '\n'.join(idl['doc']) types = idl['types'] for ty in types: ty['doc'] = '\n'.join(ty['doc']) const_methods = idl['const_methods'] for md in const_methods: md['args'] = [{'type': "Copaque", 'name': "data"}] + md['args'] md['doc'] = '\n'.join(md['doc']) nonconst_methods = idl['nonconst_methods'] for md in nonconst_methods: md['args'] = [{'type': "Opaque", 'name': "data"}] + md['args'] md['doc'] = '\n'.join(md['doc']) # Foo.hpp facet_hpp_fname = f'{facet_name}.hpp' # AFoo abstract_facet = f'A{facet_name}' # AFoo.hpp abstract_facet_fname = f'{abstract_facet}.hpp' # IFoo iface_facet = f'I{facet_name}' # IFoo_ImplType iface_facet_impltype = f'{iface_facet}_ImplType' # # IFoo_Any iface_facet_any = f'{iface_facet}_Any' # IFoo_Any.hpp iface_facet_any_hpp_fname = f'{iface_facet_any}.hpp' # IFoo_Any.cpp iface_facet_any_cpp_fname = f'{iface_facet_any}.cpp' # # IFoo_Xfer iface_facet_xfer = f'{iface_facet}_Xfer' # IFoo_Xfer.hpp iface_facet_xfer_hpp_fname = f'{iface_facet_xfer}.hpp' # IFoo_Xfer.cpp iface_facet_xfer_cpp_fname = f'{iface_facet_xfer}.cpp' # # RFoo router_facet = f'R{facet_name}' # RFoo.hpp router_facet_hpp_fname = f'{router_facet}.hpp' context = { 'genfacet': __file__, 'genfacet_input': args.input, 'using_dox': using_dox, 'impl_hpp_subdir': output_impl_hpp_subdir, # 'facet_hpp_j2': 'facet.hpp.j2', 'facet_includes': facet_includes, 'facet_ns1': facet_ns1, 'facet_ns2': facet_ns2, 'facet_name_lc': facet_name_lc, 'facet_hpp_fname': facet_hpp_fname, #'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, # 'iface_facet': iface_facet, 'iface_facet_impltype': iface_facet_impltype, # 'iface_facet_any': iface_facet_any, 'iface_facet_any_hpp_j2': 'iface_facet_any.hpp.j2', 'iface_facet_any_cpp_j2': 'iface_facet_any.cpp.j2', 'iface_facet_any_hpp_fname': iface_facet_any_hpp_fname, 'iface_facet_any_cpp_fname': iface_facet_any_cpp_fname, # 'iface_facet_xfer': iface_facet_xfer, 'iface_facet_xfer_hpp_j2': 'iface_facet_xfer.hpp.j2', 'iface_facet_xfer_cpp_j2': 'iface_facet_xfer.cpp.j2', 'iface_facet_xfer_hpp_fname': iface_facet_xfer_hpp_fname, 'iface_facet_xfer_cpp_fname': iface_facet_xfer_cpp_fname, # 'router_facet': router_facet, 'router_facet_hpp_j2': 'router_facet.hpp.j2', 'router_facet_hpp_fname': router_facet_hpp_fname, # 'types': types, # 'const_methods': const_methods, # 'nonconst_methods': nonconst_methods, } # generate .hpp files templates = {} templates[facet_hpp_fname] = [output_hpp_dir, context['facet_hpp_j2']] templates[abstract_facet_fname] = [output_impl_hpp_dir, context['abstract_facet_hpp_j2']] templates[iface_facet_any_hpp_fname] = [output_impl_hpp_dir, context['iface_facet_any_hpp_j2']] templates[iface_facet_any_cpp_fname] = [output_cpp_dir, context['iface_facet_any_cpp_j2']] templates[iface_facet_xfer_hpp_fname] = [output_impl_hpp_dir, context['iface_facet_xfer_hpp_j2']] templates[router_facet_hpp_fname] = [output_impl_hpp_dir, context['router_facet_hpp_j2']] for out_file, record in templates.items(): out_dir = record[0] template_name = record[1] print(f'out_dir: [{out_dir}]') print(f'out_file: [{out_file}]') print(f'template_name: [{template_name}]') template = env.get_template(template_name) content = template.render(**context) (out_dir / out_file).write_text(content) print(f"Generated {out_dir}/{out_file}") if __name__ == '__main__': main()