rf-web/vendor/bundle/gems/sassc-2.2.1/ext/libsass/src/eval.hpp

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2019-10-21 08:18:17 +00:00
#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*, Eval> {
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();
EnvStack& env_stack();
const std::string cwd();
Selector_List_Obj selector();
CalleeStack& callee_stack();
SelectorStack& selector_stack();
bool& old_at_root_without_rule();
struct Sass_Inspect_Options& options();
struct Sass_Inspect_Options options2();
struct Sass_Compiler* compiler();
// for evaluating function bodies
Expression* operator()(Block*);
Expression* operator()(Assignment*);
Expression* operator()(If*);
Expression* operator()(For*);
Expression* operator()(Each*);
Expression* operator()(While*);
Expression* operator()(Return*);
Expression* operator()(Warning*);
Expression* operator()(Error*);
Expression* operator()(Debug*);
Expression* operator()(List*);
Expression* operator()(Map*);
Expression* operator()(Binary_Expression*);
Expression* operator()(Unary_Expression*);
Expression* operator()(Function_Call*);
Expression* operator()(Variable*);
Expression* operator()(Number*);
Expression* operator()(Color_RGBA*);
Expression* operator()(Color_HSLA*);
Expression* operator()(Boolean*);
Expression* operator()(String_Schema*);
Expression* operator()(String_Quoted*);
Expression* operator()(String_Constant*);
// Expression* operator()(Selector_List*);
Media_Query* operator()(Media_Query*);
Expression* operator()(Media_Query_Expression*);
Expression* operator()(At_Root_Query*);
Expression* operator()(Supports_Operator*);
Expression* operator()(Supports_Negation*);
Expression* operator()(Supports_Declaration*);
Expression* operator()(Supports_Interpolation*);
Expression* operator()(Null*);
Expression* operator()(Argument*);
Expression* operator()(Arguments*);
Expression* operator()(Comment*);
// these will return selectors
Selector_List* operator()(Selector_List*);
Selector_List* operator()(Complex_Selector*);
Compound_Selector* operator()(Compound_Selector*);
Simple_Selector* operator()(Simple_Selector* s);
Wrapped_Selector* operator()(Wrapped_Selector* s);
// they don't have any specific implementation (yet)
Id_Selector* operator()(Id_Selector* s) { return s; };
Class_Selector* operator()(Class_Selector* s) { return s; };
Pseudo_Selector* operator()(Pseudo_Selector* s) { return s; };
Type_Selector* operator()(Type_Selector* s) { return s; };
Attribute_Selector* operator()(Attribute_Selector* s) { return s; };
Placeholder_Selector* operator()(Placeholder_Selector* s) { return s; };
// actual evaluated selectors
Selector_List* operator()(Selector_Schema*);
Expression* operator()(Parent_Selector*);
Expression* operator()(Parent_Reference*);
// generic fallback
template <typename U>
Expression* fallback(U x)
{ return Cast<Expression>(x); }
private:
void interpolation(Context& ctx, std::string& res, Expression_Obj ex, bool into_quotes, bool was_itpl = false);
};
}
#endif