| 1 | #!/usr/bin/env python2
|
| 2 | """
|
| 3 | asdl_main.py - Generate Python and C from ASDL schemas.
|
| 4 | """
|
| 5 | from __future__ import print_function
|
| 6 |
|
| 7 | import optparse
|
| 8 | import os
|
| 9 | import sys
|
| 10 |
|
| 11 | from asdl import ast
|
| 12 | from asdl import front_end
|
| 13 | from asdl import gen_cpp
|
| 14 | from asdl import gen_python
|
| 15 | #from asdl.util import log
|
| 16 |
|
| 17 | ARG_0 = os.path.basename(sys.argv[0])
|
| 18 |
|
| 19 |
|
| 20 | def Options():
|
| 21 | """Returns an option parser instance."""
|
| 22 |
|
| 23 | p = optparse.OptionParser()
|
| 24 | p.add_option('--no-pretty-print-methods',
|
| 25 | dest='pretty_print_methods',
|
| 26 | action='store_false',
|
| 27 | default=True,
|
| 28 | help='Whether to generate pretty printing methods')
|
| 29 |
|
| 30 | # Control Python constructors
|
| 31 |
|
| 32 | # for hnode.asdl
|
| 33 | p.add_option('--py-init-N',
|
| 34 | dest='py_init_n',
|
| 35 | action='store_true',
|
| 36 | default=False,
|
| 37 | help='Generate Python __init__ that requires every field')
|
| 38 |
|
| 39 | # The default, which matches C++
|
| 40 | p.add_option(
|
| 41 | '--init-zero-N',
|
| 42 | dest='init_zero_n',
|
| 43 | action='store_true',
|
| 44 | default=True,
|
| 45 | help='Generate 0 arg and N arg constructors, in Python and C++')
|
| 46 |
|
| 47 | return p
|
| 48 |
|
| 49 |
|
| 50 | class UserType(object):
|
| 51 | """TODO: Delete this class after we have modules with 'use'?"""
|
| 52 |
|
| 53 | def __init__(self, mod_name, type_name):
|
| 54 | self.mod_name = mod_name
|
| 55 | self.type_name = type_name
|
| 56 |
|
| 57 | def __repr__(self):
|
| 58 | return '<UserType %s %s>' % (self.mod_name, self.type_name)
|
| 59 |
|
| 60 |
|
| 61 | def main(argv):
|
| 62 | o = Options()
|
| 63 | opts, argv = o.parse_args(argv)
|
| 64 |
|
| 65 | try:
|
| 66 | action = argv[1]
|
| 67 | except IndexError:
|
| 68 | raise RuntimeError('Action required')
|
| 69 |
|
| 70 | try:
|
| 71 | schema_path = argv[2]
|
| 72 | except IndexError:
|
| 73 | raise RuntimeError('Schema path required')
|
| 74 |
|
| 75 | schema_filename = os.path.basename(schema_path)
|
| 76 | if schema_filename in ('syntax.asdl', 'runtime.asdl'):
|
| 77 | app_types = {'id': UserType('id_kind_asdl', 'Id_t')}
|
| 78 | else:
|
| 79 | app_types = {}
|
| 80 |
|
| 81 | if action == 'c': # Generate C code for the lexer
|
| 82 | with open(schema_path) as f:
|
| 83 | schema_ast = front_end.LoadSchema(f, app_types)
|
| 84 |
|
| 85 | v = gen_cpp.CEnumVisitor(sys.stdout)
|
| 86 | v.VisitModule(schema_ast)
|
| 87 |
|
| 88 | elif action == 'cpp': # Generate C++ code for ASDL schemas
|
| 89 | out_prefix = argv[3]
|
| 90 |
|
| 91 | with open(schema_path) as f:
|
| 92 | schema_ast = front_end.LoadSchema(f, app_types)
|
| 93 |
|
| 94 | # asdl/typed_arith.asdl -> typed_arith_asdl
|
| 95 | ns = os.path.basename(schema_path).replace('.', '_')
|
| 96 |
|
| 97 | with open(out_prefix + '.h', 'w') as f:
|
| 98 | guard = ns.upper()
|
| 99 | f.write("""\
|
| 100 | // %s.h is generated by %s
|
| 101 |
|
| 102 | #ifndef %s
|
| 103 | #define %s
|
| 104 |
|
| 105 | """ % (out_prefix, ARG_0, guard, guard))
|
| 106 |
|
| 107 | f.write("""\
|
| 108 | #include <cstdint>
|
| 109 | """)
|
| 110 | f.write("""
|
| 111 | #include "mycpp/runtime.h"
|
| 112 | """)
|
| 113 | if opts.pretty_print_methods:
|
| 114 | if 0:
|
| 115 | # TODO: gradually migrate to this templated code, reducing code gen
|
| 116 | f.write('#include "asdl/cpp_runtime.h"\n')
|
| 117 | else:
|
| 118 | f.write("""\
|
| 119 | #include "_gen/asdl/hnode.asdl.h"
|
| 120 | using hnode_asdl::hnode_t;
|
| 121 |
|
| 122 | """)
|
| 123 |
|
| 124 | if app_types:
|
| 125 | f.write("""\
|
| 126 | #include "_gen/frontend/id_kind.asdl.h"
|
| 127 | using id_kind_asdl::Id_t;
|
| 128 |
|
| 129 | """)
|
| 130 |
|
| 131 | for use in schema_ast.uses:
|
| 132 | # Forward declarations in the header, like
|
| 133 | # namespace syntax_asdl { class command_t; }
|
| 134 | # must come BEFORE namespace, so it can't be in the visitor.
|
| 135 |
|
| 136 | # assume sum type for now!
|
| 137 | cpp_names = [
|
| 138 | 'class %s;' % ast.TypeNameHeuristic(n)
|
| 139 | for n in use.type_names
|
| 140 | ]
|
| 141 | f.write('namespace %s_asdl { %s }\n' %
|
| 142 | (use.module_parts[-1], ' '.join(cpp_names)))
|
| 143 | f.write('\n')
|
| 144 |
|
| 145 | f.write("""\
|
| 146 | namespace %s {
|
| 147 |
|
| 148 | // use struct instead of namespace so 'using' works consistently
|
| 149 | #define ASDL_NAMES struct
|
| 150 |
|
| 151 | """ % ns)
|
| 152 |
|
| 153 | v = gen_cpp.ForwardDeclareVisitor(f)
|
| 154 | v.VisitModule(schema_ast)
|
| 155 |
|
| 156 | debug_info = {}
|
| 157 | v2 = gen_cpp.ClassDefVisitor(
|
| 158 | f,
|
| 159 | pretty_print_methods=opts.pretty_print_methods,
|
| 160 | debug_info=debug_info)
|
| 161 | v2.VisitModule(schema_ast)
|
| 162 |
|
| 163 | f.write("""
|
| 164 | } // namespace %s
|
| 165 |
|
| 166 | #endif // %s
|
| 167 | """ % (ns, guard))
|
| 168 |
|
| 169 | try:
|
| 170 | debug_info_path = argv[4]
|
| 171 | except IndexError:
|
| 172 | pass
|
| 173 | else:
|
| 174 | with open(debug_info_path, 'w') as f:
|
| 175 | from pprint import pformat
|
| 176 | f.write('''\
|
| 177 | cpp_namespace = %r
|
| 178 | tags_to_types = \\
|
| 179 | %s
|
| 180 | ''' % (ns, pformat(debug_info)))
|
| 181 |
|
| 182 | if not opts.pretty_print_methods:
|
| 183 | return
|
| 184 |
|
| 185 | with open(out_prefix + '.cc', 'w') as f:
|
| 186 | f.write("""\
|
| 187 | // %s.cc is generated by %s
|
| 188 |
|
| 189 | #include "%s.h"
|
| 190 | #include <assert.h>
|
| 191 | """ % (out_prefix, ARG_0, out_prefix))
|
| 192 |
|
| 193 | f.write("""\
|
| 194 | #include "prebuilt/asdl/runtime.mycpp.h" // generated code uses wrappers here
|
| 195 | """)
|
| 196 |
|
| 197 | # To call pretty-printing methods
|
| 198 | for use in schema_ast.uses:
|
| 199 | f.write('#include "_gen/%s.asdl.h" // "use" in ASDL \n' %
|
| 200 | '/'.join(use.module_parts))
|
| 201 |
|
| 202 | f.write("""\
|
| 203 |
|
| 204 | // Generated code uses these types
|
| 205 | using hnode_asdl::hnode;
|
| 206 | using hnode_asdl::Field;
|
| 207 | using hnode_asdl::color_e;
|
| 208 |
|
| 209 | """)
|
| 210 |
|
| 211 | if app_types:
|
| 212 | f.write('using id_kind_asdl::Id_str;\n')
|
| 213 |
|
| 214 | f.write("""
|
| 215 | namespace %s {
|
| 216 |
|
| 217 | """ % ns)
|
| 218 |
|
| 219 | v3 = gen_cpp.MethodDefVisitor(f)
|
| 220 | v3.VisitModule(schema_ast)
|
| 221 |
|
| 222 | f.write("""
|
| 223 | } // namespace %s
|
| 224 | """ % ns)
|
| 225 |
|
| 226 | elif action == 'mypy': # Generated typed MyPy code
|
| 227 | with open(schema_path) as f:
|
| 228 | schema_ast = front_end.LoadSchema(f, app_types)
|
| 229 |
|
| 230 | try:
|
| 231 | abbrev_module_name = argv[3]
|
| 232 | except IndexError:
|
| 233 | abbrev_mod = None
|
| 234 | else:
|
| 235 | # Weird Python rule for importing: fromlist needs to be non-empty.
|
| 236 | abbrev_mod = __import__(abbrev_module_name, fromlist=['.'])
|
| 237 |
|
| 238 | f = sys.stdout
|
| 239 |
|
| 240 | # TODO: Remove Any once we stop using it
|
| 241 | f.write("""\
|
| 242 | from asdl import pybase
|
| 243 | from mycpp import mops
|
| 244 | from typing import Optional, List, Tuple, Dict, Any, cast, TYPE_CHECKING
|
| 245 | """)
|
| 246 |
|
| 247 | if schema_ast.uses:
|
| 248 | f.write('\n')
|
| 249 | f.write('if TYPE_CHECKING:\n')
|
| 250 | for use in schema_ast.uses:
|
| 251 | py_names = [ast.TypeNameHeuristic(n) for n in use.type_names]
|
| 252 | # indented
|
| 253 | f.write(' from _devbuild.gen.%s_asdl import %s\n' %
|
| 254 | (use.module_parts[-1], ', '.join(py_names)))
|
| 255 | f.write('\n')
|
| 256 |
|
| 257 | for typ in app_types.itervalues():
|
| 258 | if isinstance(typ, UserType):
|
| 259 | f.write('from _devbuild.gen.%s import %s\n' %
|
| 260 | (typ.mod_name, typ.type_name))
|
| 261 | # HACK
|
| 262 | f.write('from _devbuild.gen.%s import Id_str\n' % typ.mod_name)
|
| 263 | f.write('\n')
|
| 264 |
|
| 265 | if opts.pretty_print_methods:
|
| 266 | f.write("""
|
| 267 | from asdl import runtime # For runtime.NO_SPID
|
| 268 | from asdl.runtime import NewRecord, NewLeaf, TraversalState
|
| 269 | from _devbuild.gen.hnode_asdl import color_e, hnode, hnode_e, hnode_t, Field
|
| 270 |
|
| 271 | """)
|
| 272 |
|
| 273 | abbrev_mod_entries = dir(abbrev_mod) if abbrev_mod else []
|
| 274 | v = gen_python.GenMyPyVisitor(
|
| 275 | f,
|
| 276 | abbrev_mod_entries,
|
| 277 | pretty_print_methods=opts.pretty_print_methods,
|
| 278 | py_init_n=opts.py_init_n)
|
| 279 | v.VisitModule(schema_ast)
|
| 280 |
|
| 281 | if abbrev_mod:
|
| 282 | f.write("""\
|
| 283 | #
|
| 284 | # CONCATENATED FILE
|
| 285 | #
|
| 286 |
|
| 287 | """)
|
| 288 | first, module = abbrev_module_name.rsplit('.', 1)
|
| 289 | dir_name = first.replace('.', '/')
|
| 290 | path = os.path.join(dir_name, module + '.py')
|
| 291 | with open(path) as in_f:
|
| 292 | f.write(in_f.read())
|
| 293 |
|
| 294 | else:
|
| 295 | raise RuntimeError('Invalid action %r' % action)
|
| 296 |
|
| 297 |
|
| 298 | if __name__ == '__main__':
|
| 299 | try:
|
| 300 | main(sys.argv)
|
| 301 | except RuntimeError as e:
|
| 302 | print('%s: FATAL: %s' % (ARG_0, e), file=sys.stderr)
|
| 303 | sys.exit(1)
|