Class PhpParser\Internal\Differ


					
	public

__construct(callable $isEqual)

Create differ over the given equality relation.

$isEqual

Equality relation with signature function($a, $b) : bool

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	public

diff(array $old, array $new): DiffElem[]

Calculate diff (edit script) from $old to $new.

`$old`	Original array
`$new`	New array

Diff (edit script)

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	public

diffWithReplacements(array $old, array $new): DiffElem[]

Calculate diff, including "replace" operations.

If a sequence of remove operations is followed by the same number of add operations, these will be coalesced into replace operations.

`$old`	Original array
`$new`	New array

Diff (edit script), including replace operations

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	private

calculateTrace(array $a, array $b)

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	private

extractDiff(array $trace, int $x, int $y, array $a, array $b)

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	private

coalesceReplacements(DiffElem[] $diff): DiffElem[]

Coalesce equal-length sequences of remove+add into a replace operation.

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