A SpaceTraders Agent
add funtion to get original type
+41
-5
+40
-4
src/meta/root.zig
+40
-4
src/meta/root.zig
···
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7
const parent_info = @typeInfo(parent).@"struct";
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var num_fields = 0;
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+
var num_enums = 0;
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for (parent_info.decls) |partial| {
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switch (@typeInfo(@field(parent, partial.name))) {
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.@"enum" => |e| {
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num_fields += e.fields.len;
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num_enums += 1;
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},
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else => {},
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}
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}
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const ConversionMap = struct {
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start: comptime_int = 0,
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end: comptime_int = 0,
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T: type,
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};
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+
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var combined: [num_fields]std.builtin.Type.EnumField = undefined;
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var conv_map: [num_enums]ConversionMap = undefined;
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var idx = 0;
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var i = 0;
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+
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for (parent_info.decls) |partial| {
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switch (@typeInfo(@field(parent, partial.name))) {
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.@"enum" => |e| {
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conv_map[idx] = .{
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.start = i,
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.end = i + e.fields.len - 1,
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.T = @field(parent, partial.name),
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};
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+
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for (e.fields) |field| {
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-
combined[i] = field;
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combined[i] = .{ .name = field.name, .value = field.value };
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i += 1;
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}
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+
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idx += 1;
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},
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else => {},
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}
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}
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-
return @Type(std.builtin.Type{ .@"enum" = .{
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const combined_enum = @Type(std.builtin.Type{ .@"enum" = .{
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.decls = &.{},
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.fields = combined[0..i],
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.fields = &combined,
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.tag_type = u8,
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.is_exhaustive = false,
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.is_exhaustive = true,
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} });
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const combined_enums = num_enums;
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const conv_map_const = conv_map;
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return struct {
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pub const Combined = combined_enum;
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const conversion_map: [combined_enums]ConversionMap = conv_map_const;
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pub fn originalType(value: @TypeOf(Combined)) type {
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const int_rep: u8 = @intFromEnum(value);
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for (conversion_map) |map| {
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if (map.start <= int_rep and int_rep <= map.end) return map.T;
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}
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}
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};
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}
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test {