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34 lines (28 loc) · 1004 Bytes
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Copy pathSourceLocationMixin.php
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34 lines (28 loc) · 1004 Bytes
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<?php
namespace SourceSpan;
/**
* A mixin for easily implementing {@see SourceLocation}.
*
* @internal
*/
abstract class SourceLocationMixin implements SourceLocation
{
public function distance(SourceLocation $other): int
{
if (!Util::isSameUrl($this->getSourceUrl(), $other->getSourceUrl())) {
throw new \InvalidArgumentException("Source URLs \"{$this->getSourceUrl()}\" and \"{$other->getSourceUrl()}\" don't match.");
}
return abs($this->getOffset() - $other->getOffset());
}
public function pointSpan(): SourceSpan
{
return new SimpleSourceSpan($this, $this, '');
}
public function compareTo(SourceLocation $other): int
{
if (!Util::isSameUrl($this->getSourceUrl(), $other->getSourceUrl())) {
throw new \InvalidArgumentException("Source URLs \"{$this->getSourceUrl()}\" and \"{$other->getSourceUrl()}\" don't match.");
}
return $this->getOffset() - $other->getOffset();
}
}