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#ifndef SASS_EVAL_H
#define SASS_EVAL_H
#include "ast.hpp"
#include "context.hpp"
#include "listize.hpp"
#include "operation.hpp"
#include "environment.hpp"
namespace Sass {
class Expand;
class Context;
class Eval : public Operation_CRTP<Expression_Ptr, Eval> {
private:
Expression_Ptr fallback_impl(AST_Node_Ptr n);
public:
Expand& exp;
Context& ctx;
Backtraces& traces;
Eval(Expand& exp);
~Eval();
bool force;
bool is_in_comment;
bool is_in_selector_schema;
Boolean_Obj bool_true;
Boolean_Obj bool_false;
Env* environment();
Selector_List_Obj selector();
// for evaluating function bodies
Expression_Ptr operator()(Block_Ptr);
Expression_Ptr operator()(Assignment_Ptr);
Expression_Ptr operator()(If_Ptr);
Expression_Ptr operator()(For_Ptr);
Expression_Ptr operator()(Each_Ptr);
Expression_Ptr operator()(While_Ptr);
Expression_Ptr operator()(Return_Ptr);
Expression_Ptr operator()(Warning_Ptr);
Expression_Ptr operator()(Error_Ptr);
Expression_Ptr operator()(Debug_Ptr);
Expression_Ptr operator()(List_Ptr);
Expression_Ptr operator()(Map_Ptr);
Expression_Ptr operator()(Binary_Expression_Ptr);
Expression_Ptr operator()(Unary_Expression_Ptr);
Expression_Ptr operator()(Function_Call_Ptr);
Expression_Ptr operator()(Function_Call_Schema_Ptr);
Expression_Ptr operator()(Variable_Ptr);
Expression_Ptr operator()(Number_Ptr);
Expression_Ptr operator()(Color_Ptr);
Expression_Ptr operator()(Boolean_Ptr);
Expression_Ptr operator()(String_Schema_Ptr);
Expression_Ptr operator()(String_Quoted_Ptr);
Expression_Ptr operator()(String_Constant_Ptr);
// Expression_Ptr operator()(Selector_List_Ptr);
Media_Query_Ptr operator()(Media_Query_Ptr);
Expression_Ptr operator()(Media_Query_Expression_Ptr);
Expression_Ptr operator()(At_Root_Query_Ptr);
Expression_Ptr operator()(Supports_Operator_Ptr);
Expression_Ptr operator()(Supports_Negation_Ptr);
Expression_Ptr operator()(Supports_Declaration_Ptr);
Expression_Ptr operator()(Supports_Interpolation_Ptr);
Expression_Ptr operator()(Null_Ptr);
Expression_Ptr operator()(Argument_Ptr);
Expression_Ptr operator()(Arguments_Ptr);
Expression_Ptr operator()(Comment_Ptr);
// these will return selectors
Selector_List_Ptr operator()(Selector_List_Ptr);
Selector_List_Ptr operator()(Complex_Selector_Ptr);
Compound_Selector_Ptr operator()(Compound_Selector_Ptr);
Simple_Selector_Ptr operator()(Simple_Selector_Ptr s);
Wrapped_Selector_Ptr operator()(Wrapped_Selector_Ptr s);
// they don't have any specific implementation (yet)
// Element_Selector_Ptr operator()(Element_Selector_Ptr s) { return s; };
// Pseudo_Selector_Ptr operator()(Pseudo_Selector_Ptr s) { return s; };
// Class_Selector_Ptr operator()(Class_Selector_Ptr s) { return s; };
// Id_Selector_Ptr operator()(Id_Selector_Ptr s) { return s; };
// Placeholder_Selector_Ptr operator()(Placeholder_Selector_Ptr s) { return s; };
// actual evaluated selectors
Selector_List_Ptr operator()(Selector_Schema_Ptr);
Expression_Ptr operator()(Parent_Selector_Ptr);
template <typename U>
Expression_Ptr fallback(U x) { return fallback_impl(x); }
private:
void interpolation(Context& ctx, std::string& res, Expression_Obj ex, bool into_quotes, bool was_itpl = false);
};
Expression_Ptr cval_to_astnode(union Sass_Value* v, Backtraces traces, ParserState pstate = ParserState("[AST]"));
}
#endif
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