-void UnusedVariableRemover::visit(FunctionDeclaration &func)
-{
- if(func.body.body.empty())
- return;
-
- BlockVariableMap saved_vars = variables;
- // Assignments from other functions should not be visible.
- for(BlockVariableMap::iterator i=variables.begin(); i!=variables.end(); ++i)
- i->second.assignments.resize(i->second.initialized);
- TraversingVisitor::visit(func);
- swap(variables, saved_vars);
- merge_variables(saved_vars);
-
- /* Always treat function parameters as referenced. Removing unused
- parameters is not currently supported. */
- for(NodeArray<VariableDeclaration>::iterator i=func.parameters.begin(); i!=func.parameters.end(); ++i)
- {
- BlockVariableMap::iterator j = variables.find(i->get());
- if(j!=variables.end())
- j->second.referenced = true;
- }
-}
-