51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
#pragma once
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#include <BAN/Function.h>
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#include <BAN/HashMap.h>
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#include <BAN/Iteration.h>
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#include <BAN/NoCopyMove.h>
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#include <BAN/String.h>
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#include <stdio.h>
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class Execute;
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class Builtin
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{
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BAN_NON_COPYABLE(Builtin);
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BAN_NON_MOVABLE(Builtin);
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public:
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struct BuiltinCommand
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{
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using function_t = int (*)(Execute&, BAN::Span<const BAN::String>, FILE* fin, FILE* fout);
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function_t function { nullptr };
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bool immediate { false };
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BuiltinCommand(function_t function, bool immediate)
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: function(function)
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, immediate(immediate)
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{ }
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BAN::ErrorOr<int> execute(Execute&, BAN::Span<const BAN::String> arguments, int fd_in, int fd_out) const;
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};
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public:
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Builtin() = default;
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static Builtin& get()
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{
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static Builtin s_instance;
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return s_instance;
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}
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void initialize();
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void for_each_builtin(BAN::Function<BAN::Iteration(BAN::StringView, const BuiltinCommand&)>) const;
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// return nullptr if not found
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const BuiltinCommand* find_builtin(const BAN::String& name) const;
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private:
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BAN::HashMap<BAN::String, BuiltinCommand> m_builtin_commands;
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};
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