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• LocalContextPass

PHP Класс Zephir\Passes\LocalContextPass

This pass tries to check whether variables only do exist in the local context of the method block or if they're used externally which will unallow variables to be placed in the stack This pass also tracks the number of initializations a variable may have, this allows to mark variables as read-only after their last initialization. The number of mutations is relative, since assignments inside cycles/loops may perform a n-number of mutations Показать файл Открыть проект Примеры использования класса

Защищенные свойства (Protected)

Свойство	Тип	Описание
$lastCallLine
$lastUnsetLine
$mutations
$uses
$variables

Открытые методы

Метод	Описание
declareVariables ( array $statement )
getLastCallLine ( ) : integer	Returns the line where the latest call in the method was made
getLastUnsetLine ( ) : integer	Returns the line where the latest unset operation was made
getLastVariableUseLine ( string $variable ) : integer	Returns the latest line where a variable was read
getNumberOfMutations ( string $variable ) : integer	Returns the number of assignment instructions that mutated a variable
increaseMutations ( string $variable )	Increase the number of mutations a variable has inside a statement block
markLastUse ( string $variable, array $node )	Marks the latest use/read of a variable
markVariableNoLocal ( string $variable )	Marks a variable to mandatory be stored in the heap
pass ( Zephir\StatementsBlock $block )	Do the compilation pass
passArray ( array $expression )
passCall ( array $expression )
passExpression ( array $expression )
passLetStatement ( array $statement )
passNew ( array $expression )
passStatementBlock ( array $statements )
shouldBeLocal ( string $variable ) : boolean	Asks the local context information whether a variable can be stored in the stack instead of the heap

Описание методов

Описание свойств