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