Zig 0.17.0-dev (Split by item)

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checkValueDepth

Serializer.checkValueDepth

fn checkValueDepth(val: anytype, depth: usize) error

File

lib/std/zon/Serializer.zig:754

Code

fn checkValueDepth(val: anytype, depth: usize) error{ExceededMaxDepth}!void {
    if (depth == 0) return error.ExceededMaxDepth;
    const child_depth = depth - 1;

    switch (@typeInfo(@TypeOf(val))) {
        .pointer => |pointer| switch (pointer.size) {
            .one => try checkValueDepth(val.*, child_depth),
            .slice => for (val) |item| {
                try checkValueDepth(item, child_depth);
            },
            .c, .many => {},
        },
        .array => for (val) |item| {
            try checkValueDepth(item, child_depth);
        },
        .@"struct" => |@"struct"| inline for (@"struct".field_names) |field_name| {
            try checkValueDepth(@field(val, field_name), child_depth);
        },
        .@"union" => |@"union"| if (@"union".tag_type == null) {
            return;
        } else switch (val) {
            inline else => |payload| {
                return checkValueDepth(payload, child_depth);
            },
        },
        .optional => if (val) |inner| try checkValueDepth(inner, child_depth),
        else => {},
    }
}