public function testModifyReferencedVariables()
{
$context = $this->getContext();
/**
* This variable is not needed for change
*/
$variableAValue = 1;
$variableAType = CompiledExpression::INTEGER;
$context->addVariable($variableA = new Variable('a', $variableAValue, $variableAType));
/**
* $b = true;
*/
$context->addVariable($variableB = new Variable('b', true, CompiledExpression::BOOLEAN));
/**
* $c = &$b;
*/
$variableC = new Variable('c');
$variableC->setReferencedTo($variableB);
$context->addVariable($variableC);
$newType = CompiledExpression::INTEGER;
$newValue = 55;
/**
* $b = {$newValue};
* After it variable $c will change type and value
*/
$context->modifyReferencedVariables($variableB, $newType, $newValue);
self::assertSame($newValue, $variableC->getValue());
self::assertSame($newType, $variableC->getType());
/**
* Assert that variable $a was not changed
*/
self::assertSame($variableAValue, $variableA->getValue());
self::assertSame($variableAType, $variableA->getType());
}
public function testReferenceToChange()
{
/**
* $a = 1;
* $b = &$a;
*/
$parentVariable = new Variable('a', 1, CompiledExpression::INTEGER);
$variable = new Variable('b', $parentVariable->getValue(), $parentVariable->getType());
static::assertFalse($variable->isReferenced());
$variable->setReferencedTo($parentVariable);
static::assertTrue($variable->isReferenced());
static::assertSame($parentVariable, $variable->getReferencedTo());
/**
* $b = 55.00
*/
$variable->modify(CompiledExpression::DOUBLE, 55.0);
static::assertSame($variable->getValue(), $parentVariable->getValue());
static::assertSame($variable->getType(), $parentVariable->getType());
}
