def visit_Scope(self, node):
scope = []
for a in node.args:
if isinstance(a, module.GenerateIf):
if a.true_scope is None:
raise TypeError("GenerateIf statement without scope name"
"can not be used as an scope index.")
scope.append(vast.IdentifierScopeLabel(a.true_scope))
elif isinstance(a, module.GenerateIfElse):
if a.false_scope is None:
raise TypeError(
"GenerateIfElse statement without scope name"
"can not be used as an scope index.")
scope.append(vast.IdentifierScopeLabel(a.false_scope))
elif isinstance(a, module.GenerateFor):
raise TypeError("Scope index must not be GenerateFor. "
"Use slice, like 'obj[index]'")
elif isinstance(a, vtypes.ScopeIndex):
scope.append(self.visit(a))
elif isinstance(a, str):
scope.append(vast.IdentifierScopeLabel(a))
else:
_id = self.visit(a)
if not isinstance(_id, vast.Identifier):
raise TypeError(
"Cannot convert into IdentifierScopeLabel from %s." %
str(type(_id)))
scope.append(vast.IdentifierScopeLabel(_id.name))
if len(scope) == 1: return vast.Identifier(scope[0].name)
return vast.Identifier(scope[-1].name,
vast.IdentifierScope(tuple(scope[:-1])))
def visit_ScopeIndex(self, node):
name = node.name
index = self.visit(node.index)
return vast.IdentifierScopeLabel(name, index)
