Zig 0.17.0-dev (Split by item)

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typeIsRecursiveInner

Serializer.typeIsRecursiveInner

fn typeIsRecursiveInner(comptime T: type, comptime prev_visited: []const type) bool

File

lib/std/zon/Serializer.zig:710

Code

fn typeIsRecursiveInner(comptime T: type, comptime prev_visited: []const type) bool {
    for (prev_visited) |V| {
        if (V == T) return true;
    }
    const visited = prev_visited ++ .{T};

    return switch (@typeInfo(T)) {
        .pointer => |pointer| typeIsRecursiveInner(pointer.child, visited),
        .optional => |optional| typeIsRecursiveInner(optional.child, visited),
        .array => |array| typeIsRecursiveInner(array.child, visited),
        .vector => |vector| typeIsRecursiveInner(vector.child, visited),
        .@"struct" => |@"struct"| for (@"struct".field_types) |field_type| {
            if (typeIsRecursiveInner(field_type, visited)) break true;
        } else false,
        .@"union" => |@"union"| inline for (@"union".field_types) |field_type| {
            if (typeIsRecursiveInner(field_type, visited)) break true;
        } else false,
        else => false,
    };
}