diff options
Diffstat (limited to 'libxcb/xcb-proto/xcbgen/expr.py')
| -rw-r--r-- | libxcb/xcb-proto/xcbgen/expr.py | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/libxcb/xcb-proto/xcbgen/expr.py b/libxcb/xcb-proto/xcbgen/expr.py index e4fb06e93..e4ee8c6e2 100644 --- a/libxcb/xcb-proto/xcbgen/expr.py +++ b/libxcb/xcb-proto/xcbgen/expr.py @@ -22,6 +22,7 @@ class Field(object): self.wire = wire self.auto = auto self.isfd = isfd + self.parent = None class Expression(object): @@ -52,6 +53,8 @@ class Expression(object): self.lhs = None self.rhs = None + self.contains_listelement_ref = False + if elt.tag == 'list': # List going into a request, which has no length field (inferred by server) self.lenfield_name = elt.get('name') + '_len' @@ -61,12 +64,9 @@ class Expression(object): # 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 == 'paramref': + self.lenfield_name = elt.text + self.lenfield_type = elt.get('type') elif elt.tag == 'op': # Op field. Need to recurse. @@ -103,6 +103,17 @@ class Expression(object): elif elt.tag == 'sumof': self.op = 'sumof' self.lenfield_name = elt.get('ref') + subexpressions = list(elt) + if len(subexpressions) > 0: + # sumof with a nested expression which is to be evaluated + # for each list-element in the context of that list-element. + # sumof then returns the sum of the results of these evaluations + self.rhs = Expression(subexpressions[0], parent) + + elif elt.tag == 'listelement-ref': + # current list element inside iterating expressions such as sumof + self.op = 'listelement-ref' + self.contains_listelement_ref = True else: # Notreached @@ -111,6 +122,12 @@ class Expression(object): def fixed_size(self): return self.nmemb != None + def recursive_resolve_tasks(self, module, parents): + for subexpr in (self.lhs, self.rhs): + if subexpr != None: + subexpr.recursive_resolve_tasks(module, parents) + self.contains_listelement_ref |= subexpr.contains_listelement_ref + def resolve(self, module, parents): if self.op == 'enumref': self.lenfield_type = module.get_type(self.lenfield_name[0]) @@ -127,4 +144,6 @@ class Expression(object): self.lenfield_parent = p self.lenfield_type = fields[self.lenfield_name].field_type break + + self.recursive_resolve_tasks(module, parents) |