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#ifndef SASS_EXPAND_H
#define SASS_EXPAND_H
#include <vector>
#include "ast.hpp"
#include "eval.hpp"
#include "operation.hpp"
#include "environment.hpp"
namespace Sass {
class Listize;
class Context;
class Eval;
struct Backtrace;
class Expand : public Operation_CRTP<Statement_Ptr, Expand> {
public:
Env* environment();
Selector_List_Obj selector();
Context& ctx;
Backtraces& traces;
Eval eval;
size_t recursions;
bool in_keyframes;
bool at_root_without_rule;
bool old_at_root_without_rule;
// it's easier to work with vectors
std::vector<Env*> env_stack;
std::vector<Block_Ptr> block_stack;
std::vector<AST_Node_Obj> call_stack;
std::vector<Selector_List_Obj> selector_stack;
std::vector<Media_Block_Ptr> media_block_stack;
Boolean_Obj bool_true;
Statement_Ptr fallback_impl(AST_Node_Ptr n);
private:
void expand_selector_list(Selector_Obj, Selector_List_Obj extender);
public:
Expand(Context&, Env*, std::vector<Selector_List_Obj>* stack = NULL);
~Expand() { }
Block_Ptr operator()(Block_Ptr);
Statement_Ptr operator()(Ruleset_Ptr);
Statement_Ptr operator()(Media_Block_Ptr);
Statement_Ptr operator()(Supports_Block_Ptr);
Statement_Ptr operator()(At_Root_Block_Ptr);
Statement_Ptr operator()(Directive_Ptr);
Statement_Ptr operator()(Declaration_Ptr);
Statement_Ptr operator()(Assignment_Ptr);
Statement_Ptr operator()(Import_Ptr);
Statement_Ptr operator()(Import_Stub_Ptr);
Statement_Ptr operator()(Warning_Ptr);
Statement_Ptr operator()(Error_Ptr);
Statement_Ptr operator()(Debug_Ptr);
Statement_Ptr operator()(Comment_Ptr);
Statement_Ptr operator()(If_Ptr);
Statement_Ptr operator()(For_Ptr);
Statement_Ptr operator()(Each_Ptr);
Statement_Ptr operator()(While_Ptr);
Statement_Ptr operator()(Return_Ptr);
Statement_Ptr operator()(Extension_Ptr);
Statement_Ptr operator()(Definition_Ptr);
Statement_Ptr operator()(Mixin_Call_Ptr);
Statement_Ptr operator()(Content_Ptr);
template <typename U>
Statement_Ptr fallback(U x) { return fallback_impl(x); }
void append_block(Block_Ptr);
};
}
#endif
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