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08bf443016
* Inital routes to git refs api * Git refs API implementation * Update swagger * Fix copyright * Make swagger happy add basic test * Fix test * Fix test again :)
110 lines
4.5 KiB
Go
110 lines
4.5 KiB
Go
// Copyright (c) 2015, Emir Pasic. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package containers
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// IteratorWithIndex is stateful iterator for ordered containers whose values can be fetched by an index.
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type IteratorWithIndex interface {
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// Next moves the iterator to the next element and returns true if there was a next element in the container.
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// If Next() returns true, then next element's index and value can be retrieved by Index() and Value().
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// If Next() was called for the first time, then it will point the iterator to the first element if it exists.
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// Modifies the state of the iterator.
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Next() bool
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// Value returns the current element's value.
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// Does not modify the state of the iterator.
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Value() interface{}
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// Index returns the current element's index.
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// Does not modify the state of the iterator.
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Index() int
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// Begin resets the iterator to its initial state (one-before-first)
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// Call Next() to fetch the first element if any.
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Begin()
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// First moves the iterator to the first element and returns true if there was a first element in the container.
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// If First() returns true, then first element's index and value can be retrieved by Index() and Value().
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// Modifies the state of the iterator.
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First() bool
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}
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// IteratorWithKey is a stateful iterator for ordered containers whose elements are key value pairs.
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type IteratorWithKey interface {
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// Next moves the iterator to the next element and returns true if there was a next element in the container.
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// If Next() returns true, then next element's key and value can be retrieved by Key() and Value().
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// If Next() was called for the first time, then it will point the iterator to the first element if it exists.
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// Modifies the state of the iterator.
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Next() bool
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// Value returns the current element's value.
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// Does not modify the state of the iterator.
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Value() interface{}
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// Key returns the current element's key.
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// Does not modify the state of the iterator.
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Key() interface{}
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// Begin resets the iterator to its initial state (one-before-first)
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// Call Next() to fetch the first element if any.
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Begin()
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// First moves the iterator to the first element and returns true if there was a first element in the container.
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// If First() returns true, then first element's key and value can be retrieved by Key() and Value().
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// Modifies the state of the iterator.
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First() bool
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}
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// ReverseIteratorWithIndex is stateful iterator for ordered containers whose values can be fetched by an index.
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//
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// Essentially it is the same as IteratorWithIndex, but provides additional:
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//
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// Prev() function to enable traversal in reverse
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//
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// Last() function to move the iterator to the last element.
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//
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// End() function to move the iterator past the last element (one-past-the-end).
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type ReverseIteratorWithIndex interface {
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// Prev moves the iterator to the previous element and returns true if there was a previous element in the container.
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// If Prev() returns true, then previous element's index and value can be retrieved by Index() and Value().
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// Modifies the state of the iterator.
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Prev() bool
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// End moves the iterator past the last element (one-past-the-end).
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// Call Prev() to fetch the last element if any.
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End()
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// Last moves the iterator to the last element and returns true if there was a last element in the container.
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// If Last() returns true, then last element's index and value can be retrieved by Index() and Value().
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// Modifies the state of the iterator.
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Last() bool
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IteratorWithIndex
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}
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// ReverseIteratorWithKey is a stateful iterator for ordered containers whose elements are key value pairs.
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//
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// Essentially it is the same as IteratorWithKey, but provides additional:
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//
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// Prev() function to enable traversal in reverse
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//
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// Last() function to move the iterator to the last element.
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type ReverseIteratorWithKey interface {
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// Prev moves the iterator to the previous element and returns true if there was a previous element in the container.
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// If Prev() returns true, then previous element's key and value can be retrieved by Key() and Value().
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// Modifies the state of the iterator.
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Prev() bool
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// End moves the iterator past the last element (one-past-the-end).
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// Call Prev() to fetch the last element if any.
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End()
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// Last moves the iterator to the last element and returns true if there was a last element in the container.
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// If Last() returns true, then last element's key and value can be retrieved by Key() and Value().
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// Modifies the state of the iterator.
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Last() bool
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IteratorWithKey
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}
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