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Add psalm assertions #95

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merged 1 commit into from
Dec 11, 2022
Merged

Add psalm assertions #95

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6 changes: 6 additions & 0 deletions psalm.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -47,5 +47,11 @@
<file name="src/AbstractLexer.php" />
</errorLevel>
</MixedAssignment>
<RedundantConditionGivenDocblockType>
<errorLevel type="suppress">
<!-- that test checks non-obvious things guaranteed by static analysis, just in case -->
<file name="tests/AbstractLexerTest.php" />
</errorLevel>
</RedundantConditionGivenDocblockType>
</issueHandlers>
</psalm>
7 changes: 7 additions & 0 deletions src/AbstractLexer.php
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Expand Up @@ -147,6 +147,8 @@ public function getInputUntilPosition($position)
* @param T $type
*
* @return bool
*
* @psalm-assert-if-true !null $this->lookahead
*/
public function isNextToken($type)
{
Expand All @@ -159,6 +161,8 @@ public function isNextToken($type)
* @param list<T> $types
*
* @return bool
*
* @psalm-assert-if-true !null $this->lookahead
*/
public function isNextTokenAny(array $types)
{
Expand All @@ -169,6 +173,9 @@ public function isNextTokenAny(array $types)
* Moves to the next token in the input string.
*
* @return bool
*
* @psalm-assert-if-true !null $this->lookahead
* @psalm-assert-if-false null $this->lookahead
*/
public function moveNext()
{
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