xcb-proto git update 15/5/2010

2 files changed, 566 insertions, 559 deletions

diff --git a/libxcb/xcb-proto/xcbgen/expr.py b/libxcb/xcb-proto/xcbgen/expr.py
index 522e17d09..9b1855425 100644
--- a/libxcb/xcb-proto/xcbgen/expr.py
+++ b/libxcb/xcb-proto/xcbgen/expr.py
@@ -1,88 +1,95 @@
-'''
-This module contains helper classes for structure fields and length expressions.
-'''
-class Field(object):
-    '''
-    Represents a field of a structure.
-
-    type is the datatype object for the field.
-    field_type is the name of the type (string tuple)
-    field_name is the name of the structure field.
-    visible is true iff the field should be in the request API.
-    wire is true iff the field should be in the request structure.
-    auto is true iff the field is on the wire but not in the request API (e.g. opcode)
-    '''
-    def __init__(self, type, field_type, field_name, visible, wire, auto):
-        self.type = type
-        self.field_type = field_type
-        self.field_name = field_name
-        self.visible = visible
-        self.wire = wire
-        self.auto = auto
-
-
-class Expression(object):
-    '''
-    Represents a mathematical expression for a list length or exprfield.
-
-    Public fields:
-    op is the operation (text +,*,/,<<) or None.
-    lhs and rhs are the sub-Expressions if op is set.
-    lenfield_name is the name of the length field, or None for request lists.
-    lenfield is the Field object for the length field, or None.
-    bitfield is True if the length field is a bitmask instead of a number.
-    nmemb is the fixed size (value)of the expression, or None
-    '''
-    def __init__(self, elt, parent):
-        self.parent = parent
-
-        self.nmemb = None
-
-        self.lenfield_name = None
-        self.lenfield_type = None
-        self.lenfield = None
-        self.lenwire = False
-        self.bitfield = False
-
-        self.op = None
-        self.lhs = None
-        self.rhs = None
-
-        if elt.tag == 'list':
-            # List going into a request, which has no length field (inferred by server)
-            self.lenfield_name = elt.get('name') + '_len'
-            self.lenfield_type = 'CARD32'
-
-        elif elt.tag == 'fieldref':
-            # Standard list with a fieldref
-            self.lenfield_name = elt.text
-
-        elif elt.tag == 'valueparam':
-            # Value-mask.  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
+'''

+This module contains helper classes for structure fields and length expressions.

+'''

+class Field(object):

+    '''

+    Represents a field of a structure.

+

+    type is the datatype object for the field.

+    field_type is the name of the type (string tuple)

+    field_name is the name of the structure field.

+    visible is true iff the field should be in the request API.

+    wire is true iff the field should be in the request structure.

+    auto is true iff the field is on the wire but not in the request API (e.g. opcode)

+    '''

+    def __init__(self, type, field_type, field_name, visible, wire, auto):

+        self.type = type

+        self.field_type = field_type

+        self.field_name = field_name

+        self.visible = visible

+        self.wire = wire

+        self.auto = auto

+

+

+class Expression(object):

+    '''

+    Represents a mathematical expression for a list length or exprfield.

+

+    Public fields:

+    op is the operation (text +,*,/,<<,~) or None.

+    lhs and rhs are the sub-Expressions if op is set.

+    lenfield_name is the name of the length field, or None for request lists.

+    lenfield is the Field object for the length field, or None.

+    bitfield is True if the length field is a bitmask instead of a number.

+    nmemb is the fixed size (value)of the expression, or None

+    '''

+    def __init__(self, elt, parent):

+        self.parent = parent

+

+        self.nmemb = None

+

+        self.lenfield_name = None

+        self.lenfield_type = None

+        self.lenfield = None

+        self.lenwire = False

+        self.bitfield = False

+

+        self.op = None

+        self.lhs = None

+        self.rhs = None

+

+        if elt.tag == 'list':

+            # List going into a request, which has no length field (inferred by server)

+            self.lenfield_name = elt.get('name') + '_len'

+            self.lenfield_type = 'CARD32'

+

+        elif elt.tag == 'fieldref':

+            # Standard list with a fieldref

+            self.lenfield_name = elt.text

+

+        elif elt.tag == 'valueparam':

+            # Value-mask.  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 == 'unop':

+            # Op field.  Need to recurse.

+            self.op = elt.get('op')

+            self.rhs = Expression(list(elt)[0], parent)

+

+            self.lenfield_name = self.rhs.lenfield_name

+

+        elif elt.tag == 'value':

+            # Constant expression

+            self.nmemb = int(elt.text, 0)

+

+        else:

+            # Notreached

+            raise Exception('XXX')

+

+

+    def fixed_size(self):

+        return self.nmemb != None

diff --git a/libxcb/xcb-proto/xcbgen/xtypes.py b/libxcb/xcb-proto/xcbgen/xtypes.py
index 01d765e59..dae5102b3 100644
--- a/libxcb/xcb-proto/xcbgen/xtypes.py
+++ b/libxcb/xcb-proto/xcbgen/xtypes.py
@@ -1,471 +1,471 @@
-'''
-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 PadType(Type):
-    '''
-    Derived class which represents a padding field.
-    '''
-    def __init__(self, elt):
-        Type.__init__(self, tcard8.name)
-        self.is_pad = True
-        self.size = 1
-        self.nmemb = 1 if (elt == None) else int(elt.get('bytes'))
-
-    def resolve(self, module):
-        self.resolved = True
-
-    def fixed_size(self):
-        return True
-
-    
-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):
-            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
-            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)
-
-        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)
+'''

+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, 0))))

+                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 PadType(Type):

+    '''

+    Derived class which represents a padding field.

+    '''

+    def __init__(self, elt):

+        Type.__init__(self, tcard8.name)

+        self.is_pad = True

+        self.size = 1

+        self.nmemb = 1 if (elt == None) else int(elt.get('bytes'), 0)

+

+    def resolve(self, module):

+        self.resolved = True

+

+    def fixed_size(self):

+        return True

+

+    

+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):

+            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

+            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)

+

+        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)