diff options
Diffstat (limited to 'libxcb/xcb-proto/xcbgen')
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/Makefile.am | 3 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/Makefile.in | 329 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/__init__.py | 1 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/error.py | 5 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/expr.py | 88 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/matcher.py | 112 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/state.py | 166 | ||||
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/xtypes.py | 491 |
8 files changed, 1195 insertions, 0 deletions
diff --git a/libxcb/xcb-proto/xcbgen/Makefile.am b/libxcb/xcb-proto/xcbgen/Makefile.am new file mode 100644 index 000000000..110a992f1 --- /dev/null +++ b/libxcb/xcb-proto/xcbgen/Makefile.am @@ -0,0 +1,3 @@ +pkgpythondir = $(pythondir)/xcbgen + +pkgpython_PYTHON = __init__.py error.py expr.py matcher.py state.py xtypes.py diff --git a/libxcb/xcb-proto/xcbgen/Makefile.in b/libxcb/xcb-proto/xcbgen/Makefile.in new file mode 100644 index 000000000..14d4ba311 --- /dev/null +++ b/libxcb/xcb-proto/xcbgen/Makefile.in @@ -0,0 +1,329 @@ +# Makefile.in generated by automake 1.10.2 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +subdir = xcbgen +DIST_COMMON = $(pkgpython_PYTHON) $(srcdir)/Makefile.am \ + $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_CLEAN_FILES = +SOURCES = +DIST_SOURCES = +am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; 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The length bitmask is described by attributes. + self.lenfield_name = elt.get('value-mask-name') + self.lenfield_type = elt.get('value-mask-type') + self.lenwire = True + self.bitfield = True + + elif elt.tag == 'op': + # Op field. Need to recurse. + self.op = elt.get('op') + self.lhs = Expression(list(elt)[0], parent) + self.rhs = Expression(list(elt)[1], parent) + + # Hopefully we don't have two separate length fields... + self.lenfield_name = self.lhs.lenfield_name + if self.lenfield_name == None: + self.lenfield_name = self.rhs.lenfield_name + + elif elt.tag == 'value': + # Constant expression + self.nmemb = int(elt.text) + + else: + # Notreached + raise Exception('XXX') + + + def fixed_size(self): + return self.nmemb != None diff --git a/libxcb/xcb-proto/xcbgen/matcher.py b/libxcb/xcb-proto/xcbgen/matcher.py new file mode 100644 index 000000000..e7958fa44 --- /dev/null +++ b/libxcb/xcb-proto/xcbgen/matcher.py @@ -0,0 +1,112 @@ +''' +XML parser. One function for each top-level element in the schema. + +Most functions just declare a new object and add it to the module. +For typedefs, eventcopies, xidtypes, and other aliases though, +we do not create a new type object, we just record the existing one under a new name. +''' + +from os.path import join +from xml.etree.cElementTree import parse + +import state +from xtypes import * + +def import_(node, module, namespace): + ''' + For imports, we load the file, create a new namespace object, + execute recursively, then record the import (for header files, etc.) + ''' + new_file = join(namespace.dir, '%s.xml' % node.text) + new_root = parse(new_file).getroot() + new_namespace = state.Namespace(new_file) + execute(module, new_namespace) + if not module.has_import(node.text): + module.add_import(node.text, new_namespace) + +def typedef(node, module, namespace): + id = node.get('newname') + name = namespace.prefix + (id,) + type = module.get_type(node.get('oldname')) + module.add_type(id, namespace.ns, name, type) + +def xidtype(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + type = module.get_type('CARD32') + module.add_type(id, namespace.ns, name, type) + +def xidunion(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + type = module.get_type('CARD32') + module.add_type(id, namespace.ns, name, type) + +def enum(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + type = Enum(name, node) + module.add_type(id, namespace.ns, name, type) + +def struct(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + type = Struct(name, node) + module.add_type(id, namespace.ns, name, type) + +def union(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + type = Union(name, node) + module.add_type(id, namespace.ns, name, type) + +def request(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + type = Request(name, node) + module.add_request(id, name, type) + +def event(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + event = Event(name, node) + event.add_opcode(node.get('number'), name, True) + module.add_event(id, name, event) + +def eventcopy(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + event = module.get_event(node.get('ref')) + event.add_opcode(node.get('number'), name, False) + module.add_event(id, name, event) + +def error(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + error = Error(name, node) + error.add_opcode(node.get('number'), name, True) + module.add_error(id, name, error) + +def errorcopy(node, module, namespace): + id = node.get('name') + name = namespace.prefix + (id,) + error = module.get_error(node.get('ref')) + error.add_opcode(node.get('number'), name, False) + module.add_error(id, name, error) + +funcs = {'import' : import_, + 'typedef' : typedef, + 'xidtype' : xidtype, + 'xidunion' : xidunion, + 'enum' : enum, + 'struct' : struct, + 'union' : union, + 'request' : request, + 'event' : event, + 'eventcopy' : eventcopy, + 'error' : error, + 'errorcopy' : errorcopy} + +def execute(module, namespace): + for elt in list(namespace.root): + funcs[elt.tag](elt, module, namespace) diff --git a/libxcb/xcb-proto/xcbgen/state.py b/libxcb/xcb-proto/xcbgen/state.py new file mode 100644 index 000000000..51efc9480 --- /dev/null +++ b/libxcb/xcb-proto/xcbgen/state.py @@ -0,0 +1,166 @@ +''' +This module contains the namespace class and the singleton module class. +''' +from os.path import dirname, basename +from xml.etree.cElementTree import parse + +import matcher +from error import * +from xtypes import * + +import __main__ + +class Namespace(object): + ''' + Contains the naming information for an extension. + + Public fields: + + header is the header attribute ("header file" name). + is_ext is true for extensions, false for xproto. + major_version and minor_version are extension version info. + ext_xname is the X extension name string. + ext_name is the XCB extension name prefix. + ''' + def __init__(self, filename): + # Path info + self.path = filename + self.dir = dirname(filename) + self.file = basename(filename) + + # Parse XML + self.root = parse(filename).getroot() + self.header = self.root.get('header') + self.ns = self.header + ':' + + # Get root element attributes + if self.root.get('extension-xname', False): + self.is_ext = True + self.major_version = self.root.get('major-version') + self.minor_version = self.root.get('minor-version') + self.ext_xname = self.root.get('extension-xname') + self.ext_name = self.root.get('extension-name') + self.prefix = ('xcb', self.ext_name) + else: + self.is_ext = False + self.ext_name = '' + self.prefix = ('xcb',) + + +class Module(object): + ''' + This is the grand, encompassing class that represents an entire XCB specification. + Only gets instantiated once, in the main() routine. + + Don't need to worry about this much except to declare it and to get the namespace. + + Public fields: + namespace contains the namespace info for the spec. + ''' + open = __main__.output['open'] + close = __main__.output['close'] + + def __init__(self, filename, output): + self.namespace = Namespace(filename) + self.output = output + + self.imports = [] + self.types = {} + self.events = {} + self.errors = {} + self.all = [] + + # Register some common types + self.add_type('CARD8', '', ('uint8_t',), tcard8) + self.add_type('CARD16', '', ('uint16_t',), tcard16) + self.add_type('CARD32', '', ('uint32_t',), tcard32) + self.add_type('INT8', '', ('int8_t',), tint8) + self.add_type('INT16', '', ('int16_t',), tint16) + self.add_type('INT32', '', ('int32_t',), tint32) + self.add_type('BYTE', '', ('uint8_t',), tcard8) + self.add_type('BOOL', '', ('uint8_t',), tcard8) + self.add_type('char', '', ('char',), tchar) + self.add_type('float', '', ('float',), tfloat) + self.add_type('double', '', ('double',), tdouble) + self.add_type('void', '', ('void',), tcard8) + + # This goes out and parses the rest of the XML + def register(self): + matcher.execute(self, self.namespace) + + # Recursively resolve all types + def resolve(self): + for (name, item) in self.all: + item.resolve(self) + + # Call all the output methods + def generate(self): + self.open() + + for (name, item) in self.all: + item.out(name) + + self.close() + + # Keeps track of what's been imported so far. + def add_import(self, name, namespace): + self.imports.append((name, namespace.header)) + + def has_import(self, name): + for (name_, header) in self.imports: + if name_ == name: + return True + return False + + # Keeps track of non-request/event/error datatypes + def add_type(self, id, ns, name, item): + key = ns + id + if key in self.types: + return + self.types[key] = (name, item) + if name[:-1] == self.namespace.prefix: + self.all.append((name, item)) + + def get_type_impl(self, id, idx): + key = id + if key in self.types: + return self.types[key][idx] + + key = self.namespace.ns + id + if key in self.types: + return self.types[key][idx] + + for key in self.types.keys(): + if key.rpartition(':')[2] == id: + return self.types[key][idx] + + raise ResolveException('Type %s not found' % id) + + def get_type(self, id): + return self.get_type_impl(id, 1) + + def get_type_name(self, id): + return self.get_type_impl(id, 0) + + # Keeps track of request datatypes + def add_request(self, id, name, item): + if name[:-1] == self.namespace.prefix: + self.all.append((name, item)) + + # Keeps track of event datatypes + def add_event(self, id, name, item): + self.events[id] = (name, item) + if name[:-1] == self.namespace.prefix: + self.all.append((name, item)) + + def get_event(self, id): + return self.events[id][1] + + # Keeps track of error datatypes + def add_error(self, id, name, item): + self.errors[id] = (name, item) + if name[:-1] == self.namespace.prefix: + self.all.append((name, item)) + + def get_error(self, id): + return self.errors[id][1] diff --git a/libxcb/xcb-proto/xcbgen/xtypes.py b/libxcb/xcb-proto/xcbgen/xtypes.py new file mode 100644 index 000000000..30617b8f4 --- /dev/null +++ b/libxcb/xcb-proto/xcbgen/xtypes.py @@ -0,0 +1,491 @@ +''' +This module contains the classes which represent XCB data types. +''' +from expr import Field, Expression +import __main__ + +class Type(object): + ''' + Abstract base class for all XCB data types. + Contains default fields, and some abstract methods. + ''' + def __init__(self, name): + ''' + Default structure initializer. Sets up default fields. + + Public fields: + name is a tuple of strings specifying the full type name. + size is the size of the datatype in bytes, or None if variable-sized. + nmemb is 1 for non-list types, None for variable-sized lists, otherwise number of elts. + booleans for identifying subclasses, because I can't figure out isinstance(). + ''' + self.name = name + self.size = None + self.nmemb = None + self.resolved = False + + # Screw isinstance(). + self.is_simple = False + self.is_list = False + self.is_expr = False + self.is_container = False + self.is_reply = False + self.is_union = False + self.is_pad = False + + def resolve(self, module): + ''' + Abstract method for resolving a type. + This should make sure any referenced types are already declared. + ''' + raise Exception('abstract resolve method not overridden!') + + def out(self, name): + ''' + Abstract method for outputting code. + These are declared in the language-specific modules, and + there must be a dictionary containing them declared when this module is imported! + ''' + raise Exception('abstract out method not overridden!') + + def fixed_size(self): + ''' + Abstract method for determining if the data type is fixed-size. + ''' + raise Exception('abstract fixed_size method not overridden!') + + def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto): + ''' + Default method for making a data type a member of a structure. + Extend this if the data type needs to add an additional length field or something. + + module is the global module object. + complex_type is the structure object. + see Field for the meaning of the other parameters. + ''' + new_field = Field(self, field_type, field_name, visible, wire, auto) + + # We dump the _placeholder_byte if any fields are added. + for (idx, field) in enumerate(complex_type.fields): + if field == _placeholder_byte: + complex_type.fields[idx] = new_field + return + + complex_type.fields.append(new_field) + +class SimpleType(Type): + ''' + Derived class which represents a cardinal type like CARD32 or char. + Any type which is typedef'ed to cardinal will be one of these. + + Public fields added: + none + ''' + def __init__(self, name, size): + Type.__init__(self, name) + self.is_simple = True + self.size = size + self.nmemb = 1 + + def resolve(self, module): + self.resolved = True + + def fixed_size(self): + return True + + out = __main__.output['simple'] + + +# Cardinal datatype globals. See module __init__ method. +tcard8 = SimpleType(('uint8_t',), 1) +tcard16 = SimpleType(('uint16_t',), 2) +tcard32 = SimpleType(('uint32_t',), 4) +tint8 = SimpleType(('int8_t',), 1) +tint16 = SimpleType(('int16_t',), 2) +tint32 = SimpleType(('int32_t',), 4) +tchar = SimpleType(('char',), 1) +tfloat = SimpleType(('float',), 4) +tdouble = SimpleType(('double',), 8) + + +class Enum(SimpleType): + ''' + Derived class which represents an enum. Fixed-size. + + Public fields added: + values contains a list of (name, value) tuples. value is empty, or a number. + bits contains a list of (name, bitnum) tuples. items only appear if specified as a bit. bitnum is a number. + ''' + def __init__(self, name, elt): + SimpleType.__init__(self, name, 4) + self.values = [] + self.bits = [] + for item in list(elt): + # First check if we're using a default value + if len(list(item)) == 0: + self.values.append((item.get('name'), '')) + continue + + # An explicit value or bit was specified. + value = list(item)[0] + if value.tag == 'value': + self.values.append((item.get('name'), value.text)) + elif value.tag == 'bit': + self.values.append((item.get('name'), '%u' % (1 << int(value.text)))) + self.bits.append((item.get('name'), value.text)) + + def resolve(self, module): + self.resolved = True + + def fixed_size(self): + return True + + out = __main__.output['enum'] + + +class ListType(Type): + ''' + Derived class which represents a list of some other datatype. Fixed- or variable-sized. + + Public fields added: + member is the datatype of the list elements. + parent is the structure type containing the list. + expr is an Expression object containing the length information, for variable-sized lists. + ''' + def __init__(self, elt, member, parent): + Type.__init__(self, member.name) + self.is_list = True + self.member = member + self.parent = parent + + if elt.tag == 'list': + elts = list(elt) + self.expr = Expression(elts[0] if len(elts) else elt, self) + elif elt.tag == 'valueparam': + self.expr = Expression(elt, self) + + self.size = member.size if member.fixed_size() else None + self.nmemb = self.expr.nmemb if self.expr.fixed_size() else None + + def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto): + if not self.fixed_size(): + # We need a length field. + # Ask our Expression object for it's name, type, and whether it's on the wire. + lenfid = self.expr.lenfield_type + lenfield_name = self.expr.lenfield_name + lenwire = self.expr.lenwire + needlen = True + + # See if the length field is already in the structure. + for field in self.parent.fields: + if field.field_name == lenfield_name: + needlen = False + + # It isn't, so we need to add it to the structure ourself. + if needlen: + type = module.get_type(lenfid) + lenfield_type = module.get_type_name(lenfid) + type.make_member_of(module, complex_type, lenfield_type, lenfield_name, True, lenwire, False) + + # Add ourself to the structure by calling our original method. + Type.make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto) + + def resolve(self, module): + if self.resolved: + return + self.member.resolve(module) + + # Find my length field again. We need the actual Field object in the expr. + # This is needed because we might have added it ourself above. + if not self.fixed_size(): + for field in self.parent.fields: + if field.field_name == self.expr.lenfield_name and field.wire: + self.expr.lenfield = field + break + + self.resolved = True + + def fixed_size(self): + return self.member.fixed_size() and self.expr.fixed_size() + +class ExprType(Type): + ''' + Derived class which represents an exprfield. Fixed size. + + Public fields added: + expr is an Expression object containing the value of the field. + ''' + def __init__(self, elt, member, parent): + Type.__init__(self, member.name) + self.is_expr = True + self.member = member + self.parent = parent + + self.expr = Expression(list(elt)[0], self) + + self.size = member.size + self.nmemb = 1 + + def resolve(self, module): + if self.resolved: + return + self.member.resolve(module) + self.resolved = True + + def fixed_size(self): + return True + +class SizedPadType(Type): + ''' + Derived class which represents a padding field of given size. + ''' + def __init__(self, size): + Type.__init__(self, tcard8.name) + self.is_pad = True + self.size = 1 + self.nmemb = int(size) + + def resolve(self, module): + self.resolved = True + + def fixed_size(self): + return True + +class PadType(SizedPadType): + ''' + Derived class which represents a padding field of given type. + ''' + def __init__(self, elt): + self.nmemb = "1" if (elt == None) else elt.get('bytes') + SizedPadType.__init__(self, self.nmemb) + +class ComplexType(Type): + ''' + Derived class which represents a structure. Base type for all structure types. + + Public fields added: + fields is an array of Field objects describing the structure fields. + ''' + def __init__(self, name, elt): + Type.__init__(self, name) + self.is_container = True + self.elt = elt + self.fields = [] + self.nmemb = 1 + self.size = 0 + + def resolve(self, module): + if self.resolved: + return + pads = 0 + + # Resolve all of our field datatypes. + for child in list(self.elt): + value_mask_pad = None + if child.tag == 'pad': + field_name = 'pad' + str(pads) + fkey = 'CARD8' + type = PadType(child) + pads = pads + 1 + visible = False + elif child.tag == 'field': + field_name = child.get('name') + fkey = child.get('type') + type = module.get_type(fkey) + visible = True + elif child.tag == 'exprfield': + field_name = child.get('name') + fkey = child.get('type') + type = ExprType(child, module.get_type(fkey), self) + visible = False + elif child.tag == 'list': + field_name = child.get('name') + fkey = child.get('type') + type = ListType(child, module.get_type(fkey), self) + visible = True + elif child.tag == 'valueparam': + field_name = child.get('value-list-name') + fkey = 'CARD32' + type = ListType(child, module.get_type(fkey), self) + visible = True + value_mask_pad = child.get('value-mask-pad') + else: + # Hit this on Reply + continue + + # Get the full type name for the field + field_type = module.get_type_name(fkey) + # Add the field to ourself + type.make_member_of(module, self, field_type, field_name, visible, True, False) + # Recursively resolve the type (could be another structure, list) + type.resolve(module) + + # Add a value-mask-pad if necessary + if value_mask_pad != None: + vmp_field_name = 'pad' + str(pads) + vmp_fkey = 'CARD8' + vmp_type = SizedPadType(value_mask_pad) + pads = pads + 1 + vmp_visible = False + vmp_field_type = module.get_type_name(vmp_fkey) + vmp_type.make_member_of(module, self, vmp_field_type, vmp_field_name, vmp_visible, True, False) + vmp_type.resolve(module) + + self.calc_size() # Figure out how big we are + self.resolved = True + + def calc_size(self): + self.size = 0 + for m in self.fields: + if not m.wire: + continue + if m.type.fixed_size(): + self.size = self.size + (m.type.size * m.type.nmemb) + else: + self.size = None + break + + def fixed_size(self): + for m in self.fields: + if not m.type.fixed_size(): + return False + return True + + +class Struct(ComplexType): + ''' + Derived class representing a struct data type. + ''' + out = __main__.output['struct'] + + +class Union(ComplexType): + ''' + Derived class representing a union data type. + ''' + def __init__(self, name, elt): + ComplexType.__init__(self, name, elt) + self.is_union = True + + out = __main__.output['union'] + + +class Reply(ComplexType): + ''' + Derived class representing a reply. Only found as a field of Request. + ''' + def __init__(self, name, elt): + ComplexType.__init__(self, name, elt) + self.is_reply = True + + def resolve(self, module): + if self.resolved: + return + # Add the automatic protocol fields + self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True)) + self.fields.append(_placeholder_byte) + self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True)) + self.fields.append(Field(tcard32, tcard32.name, 'length', False, True, True)) + ComplexType.resolve(self, module) + + +class Request(ComplexType): + ''' + Derived class representing a request. + + Public fields added: + reply contains the reply datatype or None for void requests. + opcode contains the request number. + ''' + def __init__(self, name, elt): + ComplexType.__init__(self, name, elt) + self.reply = None + self.opcode = elt.get('opcode') + + for child in list(elt): + if child.tag == 'reply': + self.reply = Reply(name, child) + + def resolve(self, module): + if self.resolved: + return + # Add the automatic protocol fields + if module.namespace.is_ext: + self.fields.append(Field(tcard8, tcard8.name, 'major_opcode', False, True, True)) + self.fields.append(Field(tcard8, tcard8.name, 'minor_opcode', False, True, True)) + self.fields.append(Field(tcard16, tcard16.name, 'length', False, True, True)) + ComplexType.resolve(self, module) + else: + self.fields.append(Field(tcard8, tcard8.name, 'major_opcode', False, True, True)) + self.fields.append(_placeholder_byte) + self.fields.append(Field(tcard16, tcard16.name, 'length', False, True, True)) + ComplexType.resolve(self, module) + + if self.reply: + self.reply.resolve(module) + + out = __main__.output['request'] + + +class Event(ComplexType): + ''' + Derived class representing an event data type. + + Public fields added: + opcodes is a dictionary of name -> opcode number, for eventcopies. + ''' + def __init__(self, name, elt): + ComplexType.__init__(self, name, elt) + self.opcodes = {} + + tmp = elt.get('no-sequence-number') + self.has_seq = (tmp == None or tmp.lower() == 'false' or tmp == '0') + + def add_opcode(self, opcode, name, main): + self.opcodes[name] = opcode + if main: + self.name = name + + def resolve(self, module): + if self.resolved: + return + + # Add the automatic protocol fields + self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True)) + if self.has_seq: + self.fields.append(_placeholder_byte) + self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True)) + ComplexType.resolve(self, module) + + out = __main__.output['event'] + + +class Error(ComplexType): + ''' + Derived class representing an error data type. + + Public fields added: + opcodes is a dictionary of name -> opcode number, for errorcopies. + ''' + def __init__(self, name, elt): + ComplexType.__init__(self, name, elt) + self.opcodes = {} + + def add_opcode(self, opcode, name, main): + self.opcodes[name] = opcode + if main: + self.name = name + + def resolve(self, module): + if self.resolved: + return + + # Add the automatic protocol fields + self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True)) + self.fields.append(Field(tcard8, tcard8.name, 'error_code', False, True, True)) + self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True)) + ComplexType.resolve(self, module) + + out = __main__.output['error'] + +_placeholder_byte = Field(PadType(None), tcard8.name, 'pad0', False, True, False) |