зеркало из https://github.com/mozilla/gecko-dev.git
1466 строки
46 KiB
Python
Executable File
1466 строки
46 KiB
Python
Executable File
#!/usr/bin/env python
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# xpidl.py - A parser for cross-platform IDL (XPIDL) files.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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"""A parser for cross-platform IDL (XPIDL) files."""
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import sys
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import os.path
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import re
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from ply import lex
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from ply import yacc
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"""A type conforms to the following pattern:
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def isScriptable(self):
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'returns True or False'
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def nativeType(self, calltype):
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'returns a string representation of the native type
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calltype must be 'in', 'out', or 'inout'
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Interface members const/method/attribute conform to the following pattern:
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name = 'string'
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def toIDL(self):
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'returns the member signature as IDL'
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"""
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def attlistToIDL(attlist):
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if len(attlist) == 0:
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return ''
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attlist = list(attlist)
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attlist.sort(cmp=lambda a, b: cmp(a[0], b[0]))
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return '[%s] ' % ','.join(["%s%s" % (name, value is not None and '(%s)' % value or '')
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for name, value, aloc in attlist])
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_paramsHardcode = {
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2: ('array', 'shared', 'iid_is', 'size_is', 'retval'),
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3: ('array', 'size_is', 'const'),
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}
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def paramAttlistToIDL(attlist):
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if len(attlist) == 0:
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return ''
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# Hack alert: g_hash_table_foreach is pretty much unimitatable... hardcode
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# quirk
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attlist = list(attlist)
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sorted = []
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if len(attlist) in _paramsHardcode:
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for p in _paramsHardcode[len(attlist)]:
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i = 0
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while i < len(attlist):
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if attlist[i][0] == p:
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sorted.append(attlist[i])
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del attlist[i]
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continue
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i += 1
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sorted.extend(attlist)
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return '[%s] ' % ', '.join(["%s%s" % (name, value is not None and ' (%s)' % value or '')
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for name, value, aloc in sorted])
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def unaliasType(t):
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while t.kind == 'typedef':
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t = t.realtype
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assert t is not None
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return t
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def getBuiltinOrNativeTypeName(t):
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t = unaliasType(t)
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if t.kind == 'builtin':
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return t.name
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elif t.kind == 'native':
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assert t.specialtype is not None
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return '[%s]' % t.specialtype
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else:
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return None
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class BuiltinLocation(object):
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def get(self):
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return "<builtin type>"
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def __str__(self):
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return self.get()
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class Builtin(object):
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kind = 'builtin'
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location = BuiltinLocation
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def __init__(self, name, nativename, signed=False, maybeConst=False):
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self.name = name
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self.nativename = nativename
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self.signed = signed
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self.maybeConst = maybeConst
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def isScriptable(self):
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return True
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def nativeType(self, calltype, shared=False, const=False):
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if const:
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print >>sys.stderr, IDLError("[const] doesn't make sense on builtin types.", self.location, warning=True)
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const = 'const '
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elif calltype == 'in' and self.nativename.endswith('*'):
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const = 'const '
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elif shared:
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if not self.nativename.endswith('*'):
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raise IDLError("[shared] not applicable to non-pointer types.", self.location)
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const = 'const '
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else:
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const = ''
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return "%s%s %s" % (const, self.nativename,
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calltype != 'in' and '*' or '')
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builtinNames = [
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Builtin('boolean', 'bool'),
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Builtin('void', 'void'),
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Builtin('octet', 'uint8_t'),
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Builtin('short', 'int16_t', True, True),
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Builtin('long', 'int32_t', True, True),
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Builtin('long long', 'int64_t', True, False),
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Builtin('unsigned short', 'uint16_t', False, True),
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Builtin('unsigned long', 'uint32_t', False, True),
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Builtin('unsigned long long', 'uint64_t', False, False),
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Builtin('float', 'float', True, False),
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Builtin('double', 'double', True, False),
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Builtin('char', 'char', True, False),
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Builtin('string', 'char *', False, False),
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Builtin('wchar', 'char16_t', False, False),
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Builtin('wstring', 'char16_t *', False, False),
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]
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builtinMap = {}
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for b in builtinNames:
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builtinMap[b.name] = b
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class Location(object):
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_line = None
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def __init__(self, lexer, lineno, lexpos):
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self._lineno = lineno
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self._lexpos = lexpos
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self._lexdata = lexer.lexdata
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self._file = getattr(lexer, 'filename', "<unknown>")
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def __eq__(self, other):
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return (self._lexpos == other._lexpos and
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self._file == other._file)
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def resolve(self):
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if self._line:
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return
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startofline = self._lexdata.rfind('\n', 0, self._lexpos) + 1
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endofline = self._lexdata.find('\n', self._lexpos, self._lexpos + 80)
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self._line = self._lexdata[startofline:endofline]
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self._colno = self._lexpos - startofline
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def pointerline(self):
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def i():
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for i in xrange(0, self._colno):
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yield " "
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yield "^"
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return "".join(i())
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def get(self):
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self.resolve()
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return "%s line %s:%s" % (self._file, self._lineno, self._colno)
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def __str__(self):
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self.resolve()
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return "%s line %s:%s\n%s\n%s" % (self._file, self._lineno, self._colno,
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self._line, self.pointerline())
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class NameMap(object):
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"""Map of name -> object. Each object must have a .name and .location property.
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Setting the same name twice throws an error."""
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def __init__(self):
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self._d = {}
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def __getitem__(self, key):
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if key in builtinMap:
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return builtinMap[key]
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return self._d[key]
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def __iter__(self):
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return self._d.itervalues()
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def __contains__(self, key):
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return key in builtinMap or key in self._d
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def set(self, object):
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if object.name in builtinMap:
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raise IDLError("name '%s' is a builtin and cannot be redeclared" % (object.name), object.location)
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if object.name.startswith("_"):
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object.name = object.name[1:]
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if object.name in self._d:
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old = self._d[object.name]
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if old == object:
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return
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if isinstance(old, Forward) and isinstance(object, Interface):
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self._d[object.name] = object
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elif isinstance(old, Interface) and isinstance(object, Forward):
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pass
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else:
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raise IDLError("name '%s' specified twice. Previous location: %s" % (object.name, self._d[object.name].location), object.location)
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else:
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self._d[object.name] = object
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def get(self, id, location):
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try:
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return self[id]
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except KeyError:
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raise IDLError("Name '%s' not found", location)
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class IDLError(Exception):
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def __init__(self, message, location, warning=False):
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self.message = message
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self.location = location
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self.warning = warning
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def __str__(self):
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return "%s: %s, %s" % (self.warning and 'warning' or 'error',
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self.message, self.location)
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class Include(object):
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kind = 'include'
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def __init__(self, filename, location):
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self.filename = filename
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self.location = location
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def __str__(self):
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return "".join(["include '%s'\n" % self.filename])
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def resolve(self, parent):
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def incfiles():
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yield self.filename
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for dir in parent.incdirs:
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yield os.path.join(dir, self.filename)
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for file in incfiles():
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if not os.path.exists(file):
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continue
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self.IDL = parent.parser.parse(open(file).read(), filename=file)
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self.IDL.resolve(parent.incdirs, parent.parser)
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for type in self.IDL.getNames():
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parent.setName(type)
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parent.deps.extend(self.IDL.deps)
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return
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raise IDLError("File '%s' not found" % self.filename, self.location)
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class IDL(object):
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def __init__(self, productions):
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self.productions = productions
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self.deps = []
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def setName(self, object):
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self.namemap.set(object)
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def getName(self, id, location):
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try:
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return self.namemap[id]
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except KeyError:
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raise IDLError("type '%s' not found" % id, location)
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def hasName(self, id):
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return id in self.namemap
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def getNames(self):
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return iter(self.namemap)
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def __str__(self):
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return "".join([str(p) for p in self.productions])
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def resolve(self, incdirs, parser):
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self.namemap = NameMap()
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self.incdirs = incdirs
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self.parser = parser
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for p in self.productions:
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p.resolve(self)
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def includes(self):
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for p in self.productions:
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if p.kind == 'include':
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yield p
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def needsJSTypes(self):
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for p in self.productions:
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if p.kind == 'interface' and p.needsJSTypes():
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return True
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return False
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class CDATA(object):
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kind = 'cdata'
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_re = re.compile(r'\n+')
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def __init__(self, data, location):
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self.data = self._re.sub('\n', data)
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self.location = location
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def resolve(self, parent):
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pass
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def __str__(self):
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return "cdata: %s\n\t%r\n" % (self.location.get(), self.data)
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def count(self):
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return 0
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class Typedef(object):
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kind = 'typedef'
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def __init__(self, type, name, location, doccomments):
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self.type = type
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self.name = name
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self.location = location
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self.doccomments = doccomments
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def __eq__(self, other):
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return self.name == other.name and self.type == other.type
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def resolve(self, parent):
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parent.setName(self)
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self.realtype = parent.getName(self.type, self.location)
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def isScriptable(self):
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return self.realtype.isScriptable()
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def nativeType(self, calltype):
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return "%s %s" % (self.name,
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calltype != 'in' and '*' or '')
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def __str__(self):
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return "typedef %s %s\n" % (self.type, self.name)
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class Forward(object):
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kind = 'forward'
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def __init__(self, name, location, doccomments):
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self.name = name
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self.location = location
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self.doccomments = doccomments
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def __eq__(self, other):
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return other.kind == 'forward' and other.name == self.name
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def resolve(self, parent):
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# Hack alert: if an identifier is already present, move the doccomments
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# forward.
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if parent.hasName(self.name):
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for i in xrange(0, len(parent.productions)):
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if parent.productions[i] is self:
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break
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for i in xrange(i + 1, len(parent.productions)):
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if hasattr(parent.productions[i], 'doccomments'):
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parent.productions[i].doccomments[0:0] = self.doccomments
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break
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parent.setName(self)
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def isScriptable(self):
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return True
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def nativeType(self, calltype):
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return "%s %s" % (self.name,
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calltype != 'in' and '* *' or '*')
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def __str__(self):
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return "forward-declared %s\n" % self.name
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class Native(object):
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kind = 'native'
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modifier = None
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specialtype = None
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specialtypes = {
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'nsid': None,
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'domstring': 'nsAString',
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'utf8string': 'nsACString',
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'cstring': 'nsACString',
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'astring': 'nsAString',
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'jsval': 'JS::Value'
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}
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def __init__(self, name, nativename, attlist, location):
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self.name = name
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self.nativename = nativename
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self.location = location
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for name, value, aloc in attlist:
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if value is not None:
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raise IDLError("Unexpected attribute value", aloc)
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if name in ('ptr', 'ref'):
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if self.modifier is not None:
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raise IDLError("More than one ptr/ref modifier", aloc)
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self.modifier = name
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elif name in self.specialtypes.keys():
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if self.specialtype is not None:
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raise IDLError("More than one special type", aloc)
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self.specialtype = name
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if self.specialtypes[name] is not None:
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self.nativename = self.specialtypes[name]
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else:
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raise IDLError("Unexpected attribute", aloc)
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def __eq__(self, other):
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return (self.name == other.name and
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self.nativename == other.nativename and
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self.modifier == other.modifier and
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self.specialtype == other.specialtype)
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def resolve(self, parent):
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parent.setName(self)
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def isScriptable(self):
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if self.specialtype is None:
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return False
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if self.specialtype == 'nsid':
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return self.modifier is not None
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return self.modifier == 'ref'
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def isPtr(self, calltype):
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return self.modifier == 'ptr'
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def isRef(self, calltype):
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return self.modifier == 'ref'
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def nativeType(self, calltype, const=False, shared=False):
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if shared:
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if calltype != 'out':
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raise IDLError("[shared] only applies to out parameters.")
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const = True
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if self.specialtype is not None and calltype == 'in':
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const = True
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if self.specialtype == 'jsval':
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if calltype == 'out' or calltype == 'inout':
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return "JS::MutableHandleValue "
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return "JS::HandleValue "
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if self.isRef(calltype):
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m = '& '
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elif self.isPtr(calltype):
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m = '*' + ((self.modifier == 'ptr' and calltype != 'in') and '*' or '')
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else:
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m = calltype != 'in' and '*' or ''
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return "%s%s %s" % (const and 'const ' or '', self.nativename, m)
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def __str__(self):
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return "native %s(%s)\n" % (self.name, self.nativename)
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class Interface(object):
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kind = 'interface'
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def __init__(self, name, attlist, base, members, location, doccomments):
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self.name = name
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self.attributes = InterfaceAttributes(attlist, location)
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self.base = base
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self.members = members
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self.location = location
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self.namemap = NameMap()
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self.doccomments = doccomments
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self.nativename = name
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for m in members:
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if not isinstance(m, CDATA):
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self.namemap.set(m)
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def __eq__(self, other):
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return self.name == other.name and self.location == other.location
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def resolve(self, parent):
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self.idl = parent
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# Hack alert: if an identifier is already present, libIDL assigns
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# doc comments incorrectly. This is quirks-mode extraordinaire!
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if parent.hasName(self.name):
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for member in self.members:
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if hasattr(member, 'doccomments'):
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member.doccomments[0:0] = self.doccomments
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break
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self.doccomments = parent.getName(self.name, None).doccomments
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if self.attributes.function:
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has_method = False
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for member in self.members:
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if member.kind is 'method':
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if has_method:
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raise IDLError("interface '%s' has multiple methods, but marked 'function'" % self.name, self.location)
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else:
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has_method = True
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parent.setName(self)
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if self.base is not None:
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realbase = parent.getName(self.base, self.location)
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if realbase.kind != 'interface':
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raise IDLError("interface '%s' inherits from non-interface type '%s'" % (self.name, self.base), self.location)
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if self.attributes.scriptable and not realbase.attributes.scriptable:
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print >>sys.stderr, IDLError("interface '%s' is scriptable but derives from non-scriptable '%s'" % (self.name, self.base), self.location, warning=True)
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if self.attributes.scriptable and realbase.attributes.builtinclass and not self.attributes.builtinclass:
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raise IDLError("interface '%s' is not builtinclass but derives from builtinclass '%s'" % (self.name, self.base), self.location)
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for member in self.members:
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member.resolve(self)
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# The number 250 is NOT arbitrary; this number is the maximum number of
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# stub entries defined in xpcom/reflect/xptcall/genstubs.pl
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# Do not increase this value without increasing the number in that
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# location, or you WILL cause otherwise unknown problems!
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if self.countEntries() > 250 and not self.attributes.builtinclass:
|
|
raise IDLError("interface '%s' has too many entries" % self.name, self.location)
|
|
|
|
def isScriptable(self):
|
|
# NOTE: this is not whether *this* interface is scriptable... it's
|
|
# whether, when used as a type, it's scriptable, which is true of all
|
|
# interfaces.
|
|
return True
|
|
|
|
def nativeType(self, calltype, const=False):
|
|
return "%s%s %s" % (const and 'const ' or '',
|
|
self.name,
|
|
calltype != 'in' and '* *' or '*')
|
|
|
|
def __str__(self):
|
|
l = ["interface %s\n" % self.name]
|
|
if self.base is not None:
|
|
l.append("\tbase %s\n" % self.base)
|
|
l.append(str(self.attributes))
|
|
if self.members is None:
|
|
l.append("\tincomplete type\n")
|
|
else:
|
|
for m in self.members:
|
|
l.append(str(m))
|
|
return "".join(l)
|
|
|
|
def getConst(self, name, location):
|
|
# The constant may be in a base class
|
|
iface = self
|
|
while name not in iface.namemap and iface is not None:
|
|
iface = self.idl.getName(self.base, self.location)
|
|
if iface is None:
|
|
raise IDLError("cannot find symbol '%s'" % name)
|
|
c = iface.namemap.get(name, location)
|
|
if c.kind != 'const':
|
|
raise IDLError("symbol '%s' is not a constant", c.location)
|
|
|
|
return c.getValue()
|
|
|
|
def needsJSTypes(self):
|
|
for m in self.members:
|
|
if m.kind == "attribute" and m.type == "jsval":
|
|
return True
|
|
if m.kind == "method" and m.needsJSTypes():
|
|
return True
|
|
return False
|
|
|
|
def countEntries(self):
|
|
''' Returns the number of entries in the vtable for this interface. '''
|
|
total = sum(member.count() for member in self.members)
|
|
if self.base is not None:
|
|
realbase = self.idl.getName(self.base, self.location)
|
|
total += realbase.countEntries()
|
|
return total
|
|
|
|
|
|
class InterfaceAttributes(object):
|
|
uuid = None
|
|
scriptable = False
|
|
builtinclass = False
|
|
function = False
|
|
deprecated = False
|
|
noscript = False
|
|
main_process_scriptable_only = False
|
|
|
|
def setuuid(self, value):
|
|
self.uuid = value.lower()
|
|
|
|
def setscriptable(self):
|
|
self.scriptable = True
|
|
|
|
def setfunction(self):
|
|
self.function = True
|
|
|
|
def setnoscript(self):
|
|
self.noscript = True
|
|
|
|
def setbuiltinclass(self):
|
|
self.builtinclass = True
|
|
|
|
def setdeprecated(self):
|
|
self.deprecated = True
|
|
|
|
def setmain_process_scriptable_only(self):
|
|
self.main_process_scriptable_only = True
|
|
|
|
actions = {
|
|
'uuid': (True, setuuid),
|
|
'scriptable': (False, setscriptable),
|
|
'builtinclass': (False, setbuiltinclass),
|
|
'function': (False, setfunction),
|
|
'noscript': (False, setnoscript),
|
|
'deprecated': (False, setdeprecated),
|
|
'object': (False, lambda self: True),
|
|
'main_process_scriptable_only': (False, setmain_process_scriptable_only),
|
|
}
|
|
|
|
def __init__(self, attlist, location):
|
|
def badattribute(self):
|
|
raise IDLError("Unexpected interface attribute '%s'" % name, location)
|
|
|
|
for name, val, aloc in attlist:
|
|
hasval, action = self.actions.get(name, (False, badattribute))
|
|
if hasval:
|
|
if val is None:
|
|
raise IDLError("Expected value for attribute '%s'" % name,
|
|
aloc)
|
|
|
|
action(self, val)
|
|
else:
|
|
if val is not None:
|
|
raise IDLError("Unexpected value for attribute '%s'" % name,
|
|
aloc)
|
|
|
|
action(self)
|
|
|
|
if self.uuid is None:
|
|
raise IDLError("interface has no uuid", location)
|
|
|
|
def __str__(self):
|
|
l = []
|
|
if self.uuid:
|
|
l.append("\tuuid: %s\n" % self.uuid)
|
|
if self.scriptable:
|
|
l.append("\tscriptable\n")
|
|
if self.builtinclass:
|
|
l.append("\tbuiltinclass\n")
|
|
if self.function:
|
|
l.append("\tfunction\n")
|
|
if self.main_process_scriptable_only:
|
|
l.append("\tmain_process_scriptable_only\n")
|
|
return "".join(l)
|
|
|
|
|
|
class ConstMember(object):
|
|
kind = 'const'
|
|
|
|
def __init__(self, type, name, value, location, doccomments):
|
|
self.type = type
|
|
self.name = name
|
|
self.value = value
|
|
self.location = location
|
|
self.doccomments = doccomments
|
|
|
|
def resolve(self, parent):
|
|
self.realtype = parent.idl.getName(self.type, self.location)
|
|
self.iface = parent
|
|
basetype = self.realtype
|
|
while isinstance(basetype, Typedef):
|
|
basetype = basetype.realtype
|
|
if not isinstance(basetype, Builtin) or not basetype.maybeConst:
|
|
raise IDLError("const may only be a short or long type, not %s" % self.type, self.location)
|
|
|
|
self.basetype = basetype
|
|
|
|
def getValue(self):
|
|
return self.value(self.iface)
|
|
|
|
def __str__(self):
|
|
return "\tconst %s %s = %s\n" % (self.type, self.name, self.getValue())
|
|
|
|
def count(self):
|
|
return 0
|
|
|
|
|
|
class Attribute(object):
|
|
kind = 'attribute'
|
|
noscript = False
|
|
readonly = False
|
|
implicit_jscontext = False
|
|
nostdcall = False
|
|
must_use = False
|
|
binaryname = None
|
|
null = None
|
|
undefined = None
|
|
deprecated = False
|
|
infallible = False
|
|
|
|
def __init__(self, type, name, attlist, readonly, location, doccomments):
|
|
self.type = type
|
|
self.name = name
|
|
self.attlist = attlist
|
|
self.readonly = readonly
|
|
self.location = location
|
|
self.doccomments = doccomments
|
|
|
|
for name, value, aloc in attlist:
|
|
if name == 'binaryname':
|
|
if value is None:
|
|
raise IDLError("binaryname attribute requires a value",
|
|
aloc)
|
|
|
|
self.binaryname = value
|
|
continue
|
|
|
|
if name == 'Null':
|
|
if value is None:
|
|
raise IDLError("'Null' attribute requires a value", aloc)
|
|
if readonly:
|
|
raise IDLError("'Null' attribute only makes sense for setters",
|
|
aloc)
|
|
if value not in ('Empty', 'Null', 'Stringify'):
|
|
raise IDLError("'Null' attribute value must be 'Empty', 'Null' or 'Stringify'",
|
|
aloc)
|
|
self.null = value
|
|
elif name == 'Undefined':
|
|
if value is None:
|
|
raise IDLError("'Undefined' attribute requires a value", aloc)
|
|
if readonly:
|
|
raise IDLError("'Undefined' attribute only makes sense for setters",
|
|
aloc)
|
|
if value not in ('Empty', 'Null'):
|
|
raise IDLError("'Undefined' attribute value must be 'Empty' or 'Null'",
|
|
aloc)
|
|
self.undefined = value
|
|
else:
|
|
if value is not None:
|
|
raise IDLError("Unexpected attribute value", aloc)
|
|
|
|
if name == 'noscript':
|
|
self.noscript = True
|
|
elif name == 'implicit_jscontext':
|
|
self.implicit_jscontext = True
|
|
elif name == 'deprecated':
|
|
self.deprecated = True
|
|
elif name == 'nostdcall':
|
|
self.nostdcall = True
|
|
elif name == 'must_use':
|
|
self.must_use = True
|
|
elif name == 'infallible':
|
|
self.infallible = True
|
|
else:
|
|
raise IDLError("Unexpected attribute '%s'" % name, aloc)
|
|
|
|
def resolve(self, iface):
|
|
self.iface = iface
|
|
self.realtype = iface.idl.getName(self.type, self.location)
|
|
if (self.null is not None and
|
|
getBuiltinOrNativeTypeName(self.realtype) != '[domstring]'):
|
|
raise IDLError("'Null' attribute can only be used on DOMString",
|
|
self.location)
|
|
if (self.undefined is not None and
|
|
getBuiltinOrNativeTypeName(self.realtype) != '[domstring]'):
|
|
raise IDLError("'Undefined' attribute can only be used on DOMString",
|
|
self.location)
|
|
if self.infallible and not self.realtype.kind == 'builtin':
|
|
raise IDLError('[infallible] only works on builtin types '
|
|
'(numbers, booleans, and raw char types)',
|
|
self.location)
|
|
if self.infallible and not iface.attributes.builtinclass:
|
|
raise IDLError('[infallible] attributes are only allowed on '
|
|
'[builtinclass] interfaces',
|
|
self.location)
|
|
|
|
def toIDL(self):
|
|
attribs = attlistToIDL(self.attlist)
|
|
readonly = self.readonly and 'readonly ' or ''
|
|
return "%s%sattribute %s %s;" % (attribs, readonly, self.type, self.name)
|
|
|
|
def isScriptable(self):
|
|
if not self.iface.attributes.scriptable:
|
|
return False
|
|
return not self.noscript
|
|
|
|
def __str__(self):
|
|
return "\t%sattribute %s %s\n" % (self.readonly and 'readonly ' or '',
|
|
self.type, self.name)
|
|
|
|
def count(self):
|
|
return self.readonly and 1 or 2
|
|
|
|
|
|
class Method(object):
|
|
kind = 'method'
|
|
noscript = False
|
|
notxpcom = False
|
|
binaryname = None
|
|
implicit_jscontext = False
|
|
nostdcall = False
|
|
must_use = False
|
|
optional_argc = False
|
|
deprecated = False
|
|
|
|
def __init__(self, type, name, attlist, paramlist, location, doccomments, raises):
|
|
self.type = type
|
|
self.name = name
|
|
self.attlist = attlist
|
|
self.params = paramlist
|
|
self.location = location
|
|
self.doccomments = doccomments
|
|
self.raises = raises
|
|
|
|
for name, value, aloc in attlist:
|
|
if name == 'binaryname':
|
|
if value is None:
|
|
raise IDLError("binaryname attribute requires a value",
|
|
aloc)
|
|
|
|
self.binaryname = value
|
|
continue
|
|
|
|
if value is not None:
|
|
raise IDLError("Unexpected attribute value", aloc)
|
|
|
|
if name == 'noscript':
|
|
self.noscript = True
|
|
elif name == 'notxpcom':
|
|
self.notxpcom = True
|
|
elif name == 'implicit_jscontext':
|
|
self.implicit_jscontext = True
|
|
elif name == 'optional_argc':
|
|
self.optional_argc = True
|
|
elif name == 'deprecated':
|
|
self.deprecated = True
|
|
elif name == 'nostdcall':
|
|
self.nostdcall = True
|
|
elif name == 'must_use':
|
|
self.must_use = True
|
|
else:
|
|
raise IDLError("Unexpected attribute '%s'" % name, aloc)
|
|
|
|
self.namemap = NameMap()
|
|
for p in paramlist:
|
|
self.namemap.set(p)
|
|
|
|
def resolve(self, iface):
|
|
self.iface = iface
|
|
self.realtype = self.iface.idl.getName(self.type, self.location)
|
|
for p in self.params:
|
|
p.resolve(self)
|
|
for p in self.params:
|
|
if p.retval and p != self.params[-1]:
|
|
raise IDLError("'retval' parameter '%s' is not the last parameter" % p.name, self.location)
|
|
if p.size_is:
|
|
found_size_param = False
|
|
for size_param in self.params:
|
|
if p.size_is == size_param.name:
|
|
found_size_param = True
|
|
if getBuiltinOrNativeTypeName(size_param.realtype) != 'unsigned long':
|
|
raise IDLError("is_size parameter must have type 'unsigned long'", self.location)
|
|
if not found_size_param:
|
|
raise IDLError("could not find is_size parameter '%s'" % p.size_is, self.location)
|
|
|
|
def isScriptable(self):
|
|
if not self.iface.attributes.scriptable:
|
|
return False
|
|
return not (self.noscript or self.notxpcom)
|
|
|
|
def __str__(self):
|
|
return "\t%s %s(%s)\n" % (self.type, self.name, ", ".join([p.name for p in self.params]))
|
|
|
|
def toIDL(self):
|
|
if len(self.raises):
|
|
raises = ' raises (%s)' % ','.join(self.raises)
|
|
else:
|
|
raises = ''
|
|
|
|
return "%s%s %s (%s)%s;" % (attlistToIDL(self.attlist),
|
|
self.type,
|
|
self.name,
|
|
", ".join([p.toIDL()
|
|
for p in self.params]),
|
|
raises)
|
|
|
|
def needsJSTypes(self):
|
|
if self.implicit_jscontext:
|
|
return True
|
|
if self.type == "jsval":
|
|
return True
|
|
for p in self.params:
|
|
t = p.realtype
|
|
if isinstance(t, Native) and t.specialtype == "jsval":
|
|
return True
|
|
return False
|
|
|
|
def count(self):
|
|
return 1
|
|
|
|
|
|
class Param(object):
|
|
size_is = None
|
|
iid_is = None
|
|
const = False
|
|
array = False
|
|
retval = False
|
|
shared = False
|
|
optional = False
|
|
null = None
|
|
undefined = None
|
|
|
|
def __init__(self, paramtype, type, name, attlist, location, realtype=None):
|
|
self.paramtype = paramtype
|
|
self.type = type
|
|
self.name = name
|
|
self.attlist = attlist
|
|
self.location = location
|
|
self.realtype = realtype
|
|
|
|
for name, value, aloc in attlist:
|
|
# Put the value-taking attributes first!
|
|
if name == 'size_is':
|
|
if value is None:
|
|
raise IDLError("'size_is' must specify a parameter", aloc)
|
|
self.size_is = value
|
|
elif name == 'iid_is':
|
|
if value is None:
|
|
raise IDLError("'iid_is' must specify a parameter", aloc)
|
|
self.iid_is = value
|
|
elif name == 'Null':
|
|
if value is None:
|
|
raise IDLError("'Null' must specify a parameter", aloc)
|
|
if value not in ('Empty', 'Null', 'Stringify'):
|
|
raise IDLError("'Null' parameter value must be 'Empty', 'Null', or 'Stringify'",
|
|
aloc)
|
|
self.null = value
|
|
elif name == 'Undefined':
|
|
if value is None:
|
|
raise IDLError("'Undefined' must specify a parameter", aloc)
|
|
if value not in ('Empty', 'Null'):
|
|
raise IDLError("'Undefined' parameter value must be 'Empty' or 'Null'",
|
|
aloc)
|
|
self.undefined = value
|
|
else:
|
|
if value is not None:
|
|
raise IDLError("Unexpected value for attribute '%s'" % name,
|
|
aloc)
|
|
|
|
if name == 'const':
|
|
self.const = True
|
|
elif name == 'array':
|
|
self.array = True
|
|
elif name == 'retval':
|
|
self.retval = True
|
|
elif name == 'shared':
|
|
self.shared = True
|
|
elif name == 'optional':
|
|
self.optional = True
|
|
else:
|
|
raise IDLError("Unexpected attribute '%s'" % name, aloc)
|
|
|
|
def resolve(self, method):
|
|
self.realtype = method.iface.idl.getName(self.type, self.location)
|
|
if self.array:
|
|
self.realtype = Array(self.realtype)
|
|
if (self.null is not None and
|
|
getBuiltinOrNativeTypeName(self.realtype) != '[domstring]'):
|
|
raise IDLError("'Null' attribute can only be used on DOMString",
|
|
self.location)
|
|
if (self.undefined is not None and
|
|
getBuiltinOrNativeTypeName(self.realtype) != '[domstring]'):
|
|
raise IDLError("'Undefined' attribute can only be used on DOMString",
|
|
self.location)
|
|
|
|
def nativeType(self):
|
|
kwargs = {}
|
|
if self.shared:
|
|
kwargs['shared'] = True
|
|
if self.const:
|
|
kwargs['const'] = True
|
|
|
|
try:
|
|
return self.realtype.nativeType(self.paramtype, **kwargs)
|
|
except IDLError, e:
|
|
raise IDLError(e.message, self.location)
|
|
except TypeError, e:
|
|
raise IDLError("Unexpected parameter attribute", self.location)
|
|
|
|
def toIDL(self):
|
|
return "%s%s %s %s" % (paramAttlistToIDL(self.attlist),
|
|
self.paramtype,
|
|
self.type,
|
|
self.name)
|
|
|
|
|
|
class Array(object):
|
|
def __init__(self, basetype):
|
|
self.type = basetype
|
|
|
|
def isScriptable(self):
|
|
return self.type.isScriptable()
|
|
|
|
def nativeType(self, calltype, const=False):
|
|
return "%s%s*" % (const and 'const ' or '',
|
|
self.type.nativeType(calltype))
|
|
|
|
|
|
class IDLParser(object):
|
|
keywords = {
|
|
'const': 'CONST',
|
|
'interface': 'INTERFACE',
|
|
'in': 'IN',
|
|
'inout': 'INOUT',
|
|
'out': 'OUT',
|
|
'attribute': 'ATTRIBUTE',
|
|
'raises': 'RAISES',
|
|
'readonly': 'READONLY',
|
|
'native': 'NATIVE',
|
|
'typedef': 'TYPEDEF',
|
|
}
|
|
|
|
tokens = [
|
|
'IDENTIFIER',
|
|
'CDATA',
|
|
'INCLUDE',
|
|
'IID',
|
|
'NUMBER',
|
|
'HEXNUM',
|
|
'LSHIFT',
|
|
'RSHIFT',
|
|
'NATIVEID',
|
|
]
|
|
|
|
tokens.extend(keywords.values())
|
|
|
|
states = (
|
|
('nativeid', 'exclusive'),
|
|
)
|
|
|
|
hexchar = r'[a-fA-F0-9]'
|
|
|
|
t_NUMBER = r'-?\d+'
|
|
t_HEXNUM = r'0x%s+' % hexchar
|
|
t_LSHIFT = r'<<'
|
|
t_RSHIFT = r'>>'
|
|
|
|
literals = '"(){}[],;:=|+-*'
|
|
|
|
t_ignore = ' \t'
|
|
|
|
def t_multilinecomment(self, t):
|
|
r'/\*(?s).*?\*/'
|
|
t.lexer.lineno += t.value.count('\n')
|
|
if t.value.startswith("/**"):
|
|
self._doccomments.append(t.value)
|
|
|
|
def t_singlelinecomment(self, t):
|
|
r'(?m)//.*?$'
|
|
|
|
def t_IID(self, t):
|
|
return t
|
|
t_IID.__doc__ = r'%(c)s{8}-%(c)s{4}-%(c)s{4}-%(c)s{4}-%(c)s{12}' % {'c': hexchar}
|
|
|
|
def t_IDENTIFIER(self, t):
|
|
r'(unsigned\ long\ long|unsigned\ short|unsigned\ long|long\ long)(?!_?[A-Za-z][A-Za-z_0-9])|_?[A-Za-z][A-Za-z_0-9]*'
|
|
t.type = self.keywords.get(t.value, 'IDENTIFIER')
|
|
return t
|
|
|
|
def t_LCDATA(self, t):
|
|
r'(?s)%\{[ ]*C\+\+[ ]*\n(?P<cdata>.*?\n?)%\}[ ]*(C\+\+)?'
|
|
t.type = 'CDATA'
|
|
t.value = t.lexer.lexmatch.group('cdata')
|
|
t.lexer.lineno += t.value.count('\n')
|
|
return t
|
|
|
|
def t_INCLUDE(self, t):
|
|
r'\#include[ \t]+"[^"\n]+"'
|
|
inc, value, end = t.value.split('"')
|
|
t.value = value
|
|
return t
|
|
|
|
def t_directive(self, t):
|
|
r'\#(?P<directive>[a-zA-Z]+)[^\n]+'
|
|
raise IDLError("Unrecognized directive %s" % t.lexer.lexmatch.group('directive'),
|
|
Location(lexer=self.lexer, lineno=self.lexer.lineno,
|
|
lexpos=self.lexer.lexpos))
|
|
|
|
def t_newline(self, t):
|
|
r'\n+'
|
|
t.lexer.lineno += len(t.value)
|
|
|
|
def t_nativeid_NATIVEID(self, t):
|
|
r'[^()\n]+(?=\))'
|
|
t.lexer.begin('INITIAL')
|
|
return t
|
|
|
|
t_nativeid_ignore = ''
|
|
|
|
def t_ANY_error(self, t):
|
|
raise IDLError("unrecognized input",
|
|
Location(lexer=self.lexer,
|
|
lineno=self.lexer.lineno,
|
|
lexpos=self.lexer.lexpos))
|
|
|
|
precedence = (
|
|
('left', '|'),
|
|
('left', 'LSHIFT', 'RSHIFT'),
|
|
('left', '+', '-'),
|
|
('left', '*'),
|
|
('left', 'UMINUS'),
|
|
)
|
|
|
|
def p_idlfile(self, p):
|
|
"""idlfile : productions"""
|
|
p[0] = IDL(p[1])
|
|
|
|
def p_productions_start(self, p):
|
|
"""productions : """
|
|
p[0] = []
|
|
|
|
def p_productions_cdata(self, p):
|
|
"""productions : CDATA productions"""
|
|
p[0] = list(p[2])
|
|
p[0].insert(0, CDATA(p[1], self.getLocation(p, 1)))
|
|
|
|
def p_productions_include(self, p):
|
|
"""productions : INCLUDE productions"""
|
|
p[0] = list(p[2])
|
|
p[0].insert(0, Include(p[1], self.getLocation(p, 1)))
|
|
|
|
def p_productions_interface(self, p):
|
|
"""productions : interface productions
|
|
| typedef productions
|
|
| native productions"""
|
|
p[0] = list(p[2])
|
|
p[0].insert(0, p[1])
|
|
|
|
def p_typedef(self, p):
|
|
"""typedef : TYPEDEF IDENTIFIER IDENTIFIER ';'"""
|
|
p[0] = Typedef(type=p[2],
|
|
name=p[3],
|
|
location=self.getLocation(p, 1),
|
|
doccomments=p.slice[1].doccomments)
|
|
|
|
def p_native(self, p):
|
|
"""native : attributes NATIVE IDENTIFIER afternativeid '(' NATIVEID ')' ';'"""
|
|
p[0] = Native(name=p[3],
|
|
nativename=p[6],
|
|
attlist=p[1]['attlist'],
|
|
location=self.getLocation(p, 2))
|
|
|
|
def p_afternativeid(self, p):
|
|
"""afternativeid : """
|
|
# this is a place marker: we switch the lexer into literal identifier
|
|
# mode here, to slurp up everything until the closeparen
|
|
self.lexer.begin('nativeid')
|
|
|
|
def p_anyident(self, p):
|
|
"""anyident : IDENTIFIER
|
|
| CONST"""
|
|
p[0] = {'value': p[1],
|
|
'location': self.getLocation(p, 1)}
|
|
|
|
def p_attributes(self, p):
|
|
"""attributes : '[' attlist ']'
|
|
| """
|
|
if len(p) == 1:
|
|
p[0] = {'attlist': []}
|
|
else:
|
|
p[0] = {'attlist': p[2],
|
|
'doccomments': p.slice[1].doccomments}
|
|
|
|
def p_attlist_start(self, p):
|
|
"""attlist : attribute"""
|
|
p[0] = [p[1]]
|
|
|
|
def p_attlist_continue(self, p):
|
|
"""attlist : attribute ',' attlist"""
|
|
p[0] = list(p[3])
|
|
p[0].insert(0, p[1])
|
|
|
|
def p_attribute(self, p):
|
|
"""attribute : anyident attributeval"""
|
|
p[0] = (p[1]['value'], p[2], p[1]['location'])
|
|
|
|
def p_attributeval(self, p):
|
|
"""attributeval : '(' IDENTIFIER ')'
|
|
| '(' IID ')'
|
|
| """
|
|
if len(p) > 1:
|
|
p[0] = p[2]
|
|
|
|
def p_interface(self, p):
|
|
"""interface : attributes INTERFACE IDENTIFIER ifacebase ifacebody ';'"""
|
|
atts, INTERFACE, name, base, body, SEMI = p[1:]
|
|
attlist = atts['attlist']
|
|
doccomments = []
|
|
if 'doccomments' in atts:
|
|
doccomments.extend(atts['doccomments'])
|
|
doccomments.extend(p.slice[2].doccomments)
|
|
|
|
l = lambda: self.getLocation(p, 2)
|
|
|
|
if body is None:
|
|
# forward-declared interface... must not have attributes!
|
|
if len(attlist) != 0:
|
|
raise IDLError("Forward-declared interface must not have attributes",
|
|
list[0][3])
|
|
|
|
if base is not None:
|
|
raise IDLError("Forward-declared interface must not have a base",
|
|
l())
|
|
p[0] = Forward(name=name, location=l(), doccomments=doccomments)
|
|
else:
|
|
p[0] = Interface(name=name,
|
|
attlist=attlist,
|
|
base=base,
|
|
members=body,
|
|
location=l(),
|
|
doccomments=doccomments)
|
|
|
|
def p_ifacebody(self, p):
|
|
"""ifacebody : '{' members '}'
|
|
| """
|
|
if len(p) > 1:
|
|
p[0] = p[2]
|
|
|
|
def p_ifacebase(self, p):
|
|
"""ifacebase : ':' IDENTIFIER
|
|
| """
|
|
if len(p) == 3:
|
|
p[0] = p[2]
|
|
|
|
def p_members_start(self, p):
|
|
"""members : """
|
|
p[0] = []
|
|
|
|
def p_members_continue(self, p):
|
|
"""members : member members"""
|
|
p[0] = list(p[2])
|
|
p[0].insert(0, p[1])
|
|
|
|
def p_member_cdata(self, p):
|
|
"""member : CDATA"""
|
|
p[0] = CDATA(p[1], self.getLocation(p, 1))
|
|
|
|
def p_member_const(self, p):
|
|
"""member : CONST IDENTIFIER IDENTIFIER '=' number ';' """
|
|
p[0] = ConstMember(type=p[2], name=p[3],
|
|
value=p[5], location=self.getLocation(p, 1),
|
|
doccomments=p.slice[1].doccomments)
|
|
|
|
# All "number" products return a function(interface)
|
|
|
|
def p_number_decimal(self, p):
|
|
"""number : NUMBER"""
|
|
n = int(p[1])
|
|
p[0] = lambda i: n
|
|
|
|
def p_number_hex(self, p):
|
|
"""number : HEXNUM"""
|
|
n = int(p[1], 16)
|
|
p[0] = lambda i: n
|
|
|
|
def p_number_identifier(self, p):
|
|
"""number : IDENTIFIER"""
|
|
id = p[1]
|
|
loc = self.getLocation(p, 1)
|
|
p[0] = lambda i: i.getConst(id, loc)
|
|
|
|
def p_number_paren(self, p):
|
|
"""number : '(' number ')'"""
|
|
p[0] = p[2]
|
|
|
|
def p_number_neg(self, p):
|
|
"""number : '-' number %prec UMINUS"""
|
|
n = p[2]
|
|
p[0] = lambda i: - n(i)
|
|
|
|
def p_number_add(self, p):
|
|
"""number : number '+' number
|
|
| number '-' number
|
|
| number '*' number"""
|
|
n1 = p[1]
|
|
n2 = p[3]
|
|
if p[2] == '+':
|
|
p[0] = lambda i: n1(i) + n2(i)
|
|
elif p[2] == '-':
|
|
p[0] = lambda i: n1(i) - n2(i)
|
|
else:
|
|
p[0] = lambda i: n1(i) * n2(i)
|
|
|
|
def p_number_shift(self, p):
|
|
"""number : number LSHIFT number
|
|
| number RSHIFT number"""
|
|
n1 = p[1]
|
|
n2 = p[3]
|
|
if p[2] == '<<':
|
|
p[0] = lambda i: n1(i) << n2(i)
|
|
else:
|
|
p[0] = lambda i: n1(i) >> n2(i)
|
|
|
|
def p_number_bitor(self, p):
|
|
"""number : number '|' number"""
|
|
n1 = p[1]
|
|
n2 = p[3]
|
|
p[0] = lambda i: n1(i) | n2(i)
|
|
|
|
def p_member_att(self, p):
|
|
"""member : attributes optreadonly ATTRIBUTE IDENTIFIER IDENTIFIER ';'"""
|
|
if 'doccomments' in p[1]:
|
|
doccomments = p[1]['doccomments']
|
|
elif p[2] is not None:
|
|
doccomments = p[2]
|
|
else:
|
|
doccomments = p.slice[3].doccomments
|
|
|
|
p[0] = Attribute(type=p[4],
|
|
name=p[5],
|
|
attlist=p[1]['attlist'],
|
|
readonly=p[2] is not None,
|
|
location=self.getLocation(p, 3),
|
|
doccomments=doccomments)
|
|
|
|
def p_member_method(self, p):
|
|
"""member : attributes IDENTIFIER IDENTIFIER '(' paramlist ')' raises ';'"""
|
|
if 'doccomments' in p[1]:
|
|
doccomments = p[1]['doccomments']
|
|
else:
|
|
doccomments = p.slice[2].doccomments
|
|
|
|
p[0] = Method(type=p[2],
|
|
name=p[3],
|
|
attlist=p[1]['attlist'],
|
|
paramlist=p[5],
|
|
location=self.getLocation(p, 3),
|
|
doccomments=doccomments,
|
|
raises=p[7])
|
|
|
|
def p_paramlist(self, p):
|
|
"""paramlist : param moreparams
|
|
| """
|
|
if len(p) == 1:
|
|
p[0] = []
|
|
else:
|
|
p[0] = list(p[2])
|
|
p[0].insert(0, p[1])
|
|
|
|
def p_moreparams_start(self, p):
|
|
"""moreparams :"""
|
|
p[0] = []
|
|
|
|
def p_moreparams_continue(self, p):
|
|
"""moreparams : ',' param moreparams"""
|
|
p[0] = list(p[3])
|
|
p[0].insert(0, p[2])
|
|
|
|
def p_param(self, p):
|
|
"""param : attributes paramtype IDENTIFIER IDENTIFIER"""
|
|
p[0] = Param(paramtype=p[2],
|
|
type=p[3],
|
|
name=p[4],
|
|
attlist=p[1]['attlist'],
|
|
location=self.getLocation(p, 3))
|
|
|
|
def p_paramtype(self, p):
|
|
"""paramtype : IN
|
|
| INOUT
|
|
| OUT"""
|
|
p[0] = p[1]
|
|
|
|
def p_optreadonly(self, p):
|
|
"""optreadonly : READONLY
|
|
| """
|
|
if len(p) > 1:
|
|
p[0] = p.slice[1].doccomments
|
|
else:
|
|
p[0] = None
|
|
|
|
def p_raises(self, p):
|
|
"""raises : RAISES '(' idlist ')'
|
|
| """
|
|
if len(p) == 1:
|
|
p[0] = []
|
|
else:
|
|
p[0] = p[3]
|
|
|
|
def p_idlist(self, p):
|
|
"""idlist : IDENTIFIER"""
|
|
p[0] = [p[1]]
|
|
|
|
def p_idlist_continue(self, p):
|
|
"""idlist : IDENTIFIER ',' idlist"""
|
|
p[0] = list(p[3])
|
|
p[0].insert(0, p[1])
|
|
|
|
def p_error(self, t):
|
|
if not t:
|
|
raise IDLError("Syntax Error at end of file. Possibly due to missing semicolon(;), braces(}) or both", None)
|
|
else:
|
|
location = Location(self.lexer, t.lineno, t.lexpos)
|
|
raise IDLError("invalid syntax", location)
|
|
|
|
def __init__(self, outputdir=''):
|
|
self._doccomments = []
|
|
self.lexer = lex.lex(object=self,
|
|
outputdir=outputdir,
|
|
lextab='xpidllex',
|
|
optimize=1)
|
|
self.parser = yacc.yacc(module=self,
|
|
outputdir=outputdir,
|
|
debug=0,
|
|
tabmodule='xpidlyacc',
|
|
optimize=1)
|
|
|
|
def clearComments(self):
|
|
self._doccomments = []
|
|
|
|
def token(self):
|
|
t = self.lexer.token()
|
|
if t is not None and t.type != 'CDATA':
|
|
t.doccomments = self._doccomments
|
|
self._doccomments = []
|
|
return t
|
|
|
|
def parse(self, data, filename=None):
|
|
if filename is not None:
|
|
self.lexer.filename = filename
|
|
self.lexer.lineno = 1
|
|
self.lexer.input(data)
|
|
idl = self.parser.parse(lexer=self)
|
|
if filename is not None:
|
|
idl.deps.append(filename)
|
|
return idl
|
|
|
|
def getLocation(self, p, i):
|
|
return Location(self.lexer, p.lineno(i), p.lexpos(i))
|
|
|
|
if __name__ == '__main__':
|
|
p = IDLParser()
|
|
for f in sys.argv[1:]:
|
|
print "Parsing %s" % f
|
|
p.parse(open(f).read(), filename=f)
|