const std = @import("std");

pub const Mapping = struct {
    mapped: []const u8,
    doc: ?[]const u8,
};

pub const MapData = struct {
    arena: std.heap.ArenaAllocator,
    mappings: std.StringHashMap(Mapping),
    renames: std.StringHashMap([]const u8),
};

alloc: std.mem.Allocator,
lock: std.Thread.RwLock,
mdata: ?MapData = null,

const State = @This();

pub fn deinit(self: State) void {
    var selfv = self;
    if (selfv.mdata) |*m| {
        m.arena.deinit();
        m.mappings.deinit();
        m.renames.deinit();
    }
}