PHP Class Zephir\Optimizers\EvalExpression

Resolves evaluation of expressions returning a C-int expression that can be used by 'if'/'while'/'do-while' statements

Protected Properties

Method	Description
getEvalVariable ( ) : Variable	Returns the variable evaluated by the EvalExpression
getUsedVariables ( ) : array
isUnreachable ( ) : boolean	Checks if the evaluation produce unreachable code
isUnreachableElse ( ) : boolean	Checks if the evaluation not produce unreachable code
optimize ( $exprRaw, Zephir\CompilationContext $compilationContext ) : boolean \| string	Optimizes expressions
optimizeNot ( array $expr, Zephir\CompilationContext $compilationContext ) : boolean \| string	Skips the not operator by recursively optimizing the expression at its right

Returns the variable evaluated by the EvalExpression

public getEvalVariable ( ) : Variable
return	Zephir\Variable

public getUsedVariables ( ) : array
return	array

Checks if the evaluation produce unreachable code

public isUnreachable ( ) : boolean
return	boolean

Checks if the evaluation not produce unreachable code

public isUnreachableElse ( ) : boolean
return	boolean

Optimizes expressions

public optimize ( $exprRaw, Zephir\CompilationContext $compilationContext ) : boolean \| string
$exprRaw
$compilationContext	Zephir\CompilationContext
return	boolean \| string

Skips the not operator by recursively optimizing the expression at its right

public optimizeNot ( array $expr, Zephir\CompilationContext $compilationContext ) : boolean \| string
$expr	array
$compilationContext	Zephir\CompilationContext
return	boolean \| string

protected $_unreachable

protected $_unreachableElse

protected $_usedVariables