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87 lines
2.4 KiB
87 lines
2.4 KiB
3 years ago
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#ifndef SASS_EXTEND_H
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#define SASS_EXTEND_H
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#include <string>
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#include <set>
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#include "ast.hpp"
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#include "node.hpp"
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#include "eval.hpp"
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#include "operation.hpp"
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#include "subset_map.hpp"
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#include "ast_fwd_decl.hpp"
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namespace Sass {
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Node subweave(Node& one, Node& two);
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class Extend : public Operation_CRTP<void, Extend> {
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Subset_Map& subset_map;
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Eval* eval;
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void fallback_impl(AST_Node_Ptr n) { }
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private:
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std::unordered_map<
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Selector_List_Obj, // key
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Selector_List_Obj, // value
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HashNodes, // hasher
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CompareNodes // compare
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> memoizeList;
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std::unordered_map<
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Complex_Selector_Obj, // key
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Node, // value
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HashNodes, // hasher
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CompareNodes // compare
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> memoizeComplex;
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/* this turned out to be too much overhead
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re-evaluate once we store an ast selector
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std::unordered_map<
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Compound_Selector_Obj, // key
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Node, // value
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HashNodes, // hasher
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CompareNodes // compare
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> memoizeCompound;
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*/
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void extendObjectWithSelectorAndBlock(Ruleset_Ptr pObject);
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Node extendComplexSelector(Complex_Selector_Ptr sel, CompoundSelectorSet& seen, bool isReplace, bool isOriginal);
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Node extendCompoundSelector(Compound_Selector_Ptr sel, CompoundSelectorSet& seen, bool isReplace);
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bool complexSelectorHasExtension(Complex_Selector_Ptr selector, CompoundSelectorSet& seen);
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Node trim(Node& seqses, bool isReplace);
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Node weave(Node& path);
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public:
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void setEval(Eval& eval);
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Selector_List_Ptr extendSelectorList(Selector_List_Obj pSelectorList, bool isReplace, bool& extendedSomething, CompoundSelectorSet& seen);
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Selector_List_Ptr extendSelectorList(Selector_List_Obj pSelectorList, bool isReplace = false) {
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bool extendedSomething = false;
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CompoundSelectorSet seen;
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return extendSelectorList(pSelectorList, isReplace, extendedSomething, seen);
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}
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Selector_List_Ptr extendSelectorList(Selector_List_Obj pSelectorList, CompoundSelectorSet& seen) {
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bool isReplace = false;
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bool extendedSomething = false;
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return extendSelectorList(pSelectorList, isReplace, extendedSomething, seen);
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}
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Extend(Subset_Map&);
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~Extend() { }
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void operator()(Block_Ptr);
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void operator()(Ruleset_Ptr);
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void operator()(Supports_Block_Ptr);
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void operator()(Media_Block_Ptr);
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void operator()(Directive_Ptr);
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template <typename U>
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void fallback(U x) { return fallback_impl(x); }
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};
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}
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#endif
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