A SpaceTraders Agent
create function to combine multiple enums into one
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src/meta/root.zig
+34
src/meta/root.zig
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pub const fmt = @import("fmt.zig");
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pub const pretty = fmt.pretty;
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pub fn CombinedEnum(comptime parent: type) type {
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const std = @import("std");
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const parent_info = @typeInfo(parent).@"struct";
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var num_fields = 0;
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for (parent_info.decls) |partial| {
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switch (@typeInfo(@FieldType(parent, partial.name))) {
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.@"enum" => |_| num_fields += 1,
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else => {},
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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 i = 0;
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for (parent_info.decls) |partial| {
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switch (@typeInfo(@FieldType(parent, partial.name))) {
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.@"enum" => |e| {
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for (e.fields) |field| {
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combined[i] = field;
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i += 1;
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}
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},
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else => {},
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}
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}
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return @Type(.{ .@"enum" = .{
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.decls = &.{},
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.fields = &combined,
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} });
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}