125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
#ifndef id_map_hh_INCLUDED
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#define id_map_hh_INCLUDED
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#include "string.hh"
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#include "vector.hh"
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#include <algorithm>
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namespace Kakoune
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{
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template<typename Value, MemoryDomain domain = MemoryDomain::Undefined>
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class IdMap
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{
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public:
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struct Element
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{
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Element(String k, Value v)
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: hash(hash_value(k)), key(std::move(k)), value(std::move(v)) {}
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size_t hash;
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String key;
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Value value;
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bool operator==(const Element& other) const
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{
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return hash == other.hash and key == other.key and value == other.value;
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}
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};
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using container_type = Vector<Element, domain>;
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using iterator = typename container_type::iterator;
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using const_iterator = typename container_type::const_iterator;
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IdMap() = default;
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IdMap(std::initializer_list<Element> val) : m_content{val} {}
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void append(const Element& value)
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{
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m_content.push_back(value);
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}
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void append(Element&& value)
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{
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m_content.push_back(std::move(value));
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}
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iterator find(StringView id)
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{
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const size_t hash = hash_value(id);
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return std::find_if(begin(), end(),
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[id, hash](const Element& e)
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{ return e.hash == hash and e.key == id; });
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}
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const_iterator find(StringView id) const
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{
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return const_cast<IdMap*>(this)->find(id);
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}
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bool contains(StringView id) const
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{
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return find(id) != end();
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}
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void remove(StringView id)
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{
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auto it = find(id);
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if (it != end())
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m_content.erase(it);
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}
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void remove_all(StringView id)
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{
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const size_t hash = hash_value(id);
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auto it = std::remove_if(begin(), end(), [id, hash](const Element& e)
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{ return e.hash == hash and e.key == id; });
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m_content.erase(it, end());
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}
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Value& operator[](StringView id)
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{
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auto it = find(id);
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if (it != m_content.end())
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return it->value;
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append({ id.str(), Value{} });
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return (m_content.end()-1)->value;
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}
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template<MemoryDomain dom>
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bool operator==(const IdMap<Value, dom>& other) const
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{
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return size() == other.size() and std::equal(begin(), end(), other.begin());
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}
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template<MemoryDomain dom>
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bool operator!=(const IdMap<Value, dom>& other) const
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{
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return not (*this == other);
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}
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void reserve(size_t size) { m_content.reserve(size); }
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size_t size() const { return m_content.size(); }
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void clear() { m_content.clear(); }
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void erase(iterator it) { m_content.erase(it); }
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static const String& get_id(const Element& e) { return e.key; }
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bool empty() const { return m_content.empty(); }
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iterator begin() { return m_content.begin(); }
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iterator end() { return m_content.end(); }
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const_iterator begin() const { return m_content.begin(); }
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const_iterator end() const { return m_content.end(); }
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private:
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container_type m_content;
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};
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}
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#endif // id_map_hh_INCLUDED
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