Zig 0.17.0-dev (Split by item)

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readOffsetVarInt

git.readOffsetVarInt

fn readOffsetVarInt(r: *Io.Reader) !u64

File

lib/compiler/Maker/Fetch/git.zig:1239

Code

fn readOffsetVarInt(r: *Io.Reader) !u64 {
    const Byte = packed struct { value: u7, has_next: bool };
    var b: Byte = @bitCast(try r.takeByte());
    var value: u64 = b.value;
    while (b.has_next) {
        b = @bitCast(try r.takeByte());
        value = std.math.shlExact(u64, value + 1, 7) catch return error.InvalidFormat;
        value |= b.value;
    }
    return value;
}