PollFiles

Given an enum, returns a struct with fields of that enum, each field representing an I/O stream for polling.

Source

Implementation

pub fn PollFiles(comptime StreamEnum: type) type {
    const enum_fields = @typeInfo(StreamEnum).@"enum".fields;
    var struct_fields: [enum_fields.len]std.builtin.Type.StructField = undefined;
    for (&struct_fields, enum_fields) |*struct_field, enum_field| {
        struct_field.* = .{
            .name = enum_field.name,
            .type = std.fs.File,
            .default_value_ptr = null,
            .is_comptime = false,
            .alignment = @alignOf(std.fs.File),
        };
    }
    return @Type(.{ .@"struct" = .{
        .layout = .auto,
        .fields = &struct_fields,
        .decls = &.{},
        .is_tuple = false,
    } });
}