91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
#pragma once
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#include <algorithm>
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#include <cstdint>
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#include <memory>
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#include <span>
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#include <string>
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#include <string_view>
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#include <utility>
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#include <vector>
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#include "nf7.hh"
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#include "common/lambda.hh"
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namespace nf7 {
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class Node : public File::Interface {
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public:
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class Editor;
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enum Flag : uint8_t {
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kUI = 1 << 0, // UpdateNode() is called to display node
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kMenu = 1 << 1,
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};
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using Flags = uint8_t;
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Node(Flags f = 0) noexcept : flags_(f) { }
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Node(const Node&) = default;
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Node(Node&&) = default;
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Node& operator=(const Node&) = default;
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Node& operator=(Node&&) = default;
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virtual std::shared_ptr<nf7::Lambda> CreateLambda(
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const std::shared_ptr<nf7::Lambda::Owner>&) noexcept = 0;
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virtual void UpdateNode(Editor&) noexcept { }
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virtual void UpdateMenu(Editor&) noexcept { }
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std::span<const std::string> input() const noexcept { return input_; }
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std::span<const std::string> output() const noexcept { return output_; }
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const std::string& input(size_t i) const noexcept { return input_[i]; }
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const std::string& output(size_t i) const noexcept { return output_[i]; }
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size_t input(std::string_view name) const {
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auto itr = std::find(input_.begin(), input_.end(), name);
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if (itr >= input_.end()) {
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throw Exception("missing input socket: "+std::string(name));
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}
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return static_cast<size_t>(itr - input_.begin());
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}
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size_t output(std::string_view name) const {
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auto itr = std::find(output_.begin(), output_.end(), name);
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if (itr >= output_.end()) {
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throw Exception("missing output socket: "+std::string(name));
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}
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return static_cast<size_t>(itr - output_.begin());
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}
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Flags flags() const noexcept { return flags_; }
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protected:
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Flags flags_;
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std::vector<std::string> input_;
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std::vector<std::string> output_;
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};
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class Node::Editor {
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public:
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Editor() = default;
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virtual ~Editor() = default;
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Editor(const Editor&) = delete;
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Editor(Editor&&) = delete;
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Editor& operator=(const Editor&) = delete;
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Editor& operator=(Editor&&) = delete;
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virtual void Emit(Node&, size_t, nf7::Value&&) noexcept = 0;
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virtual void AddLink(Node& src_node, std::string_view src_name,
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Node& dst_node, std::string_view dst_name) noexcept = 0;
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virtual void RemoveLink(Node& src_node, std::string_view src_name,
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Node& dst_node, std::string_view dst_name) noexcept = 0;
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virtual std::vector<std::pair<Node*, std::string>> GetSrcOf(Node&, std::string_view) const noexcept = 0;
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virtual std::vector<std::pair<Node*, std::string>> GetDstOf(Node&, std::string_view) const noexcept = 0;
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};
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} // namespace nf7
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