// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// [START library]
// Equivalent to `@available(platform="fuchsia", added=1)`.
@available(added=1)
library fuchsia.examples.docs;
// [END library]

// [START arguments]
@available(added=1, deprecated=2, removed=3, legacy=true)
const ANSWER uint64 = 42;
// [END arguments]

// [START inheritance]
@available(added=2, deprecated=3)
protocol Versioned {
    // Equivalent to `@available(added=2, deprecated=3, removed=4, legacy=true)`.
    @available(removed=4, legacy=true)
    Removed(table {
        // Equivalent to `@available(added=3, deprecated=3, removed=4, legacy=true)`.
        @available(added=3)
        1: message string;
        // Equivalent to `@available(added=2, deprecated=3, removed=4, legacy=false)`.
        @available(legacy=false)
        2: count uint32;
    });
};
// [END inheritance]

// [START deprecation]
protocol Example {
    // (Description of the method.)
    //
    // # Deprecation
    //
    // (Detailed explanation of why the method is deprecated, the timeline for
    // removing it, and what should be used instead.)
    @available(deprecated=5, removed=6, note="use Replacement")
    Deprecated();

    @available(added=5)
    Replacement();
};
// [END deprecation]

// [START legacy]
protocol LegacyExample {
    @available(deprecated=5, removed=6, legacy=true, note="...")
    LegacyMethod();
};
// [END legacy]

// [START references]
const VALUE uint32 = 5;
const REFERENCES_VALUE uint32 = VALUE;

type Type = struct {};
type ReferencesType = table {
    1: t Type;
};

alias ReferencesTypeAndValue = vector<Type>:VALUE;
// [END references]

// [START swapping]
@available(removed=HEAD)
type Color = strict enum {
    RED = 1;
};

@available(added=HEAD)
type Color = flexible enum { // Note: flexible instead of strict
    RED = 1;
};
// [END swapping]