|
final public static returnExpression ( |
||
| $value | ||
| return | ||
public function testFunctionGetsReturnWithoutValueExpression()
{
/** @var $function Functions\ProjectionBase */
$function = $this->functionWithEmptyReturnStatement();
$this->assertSame(true, $function->hasReturnExpression());
$this->assertEquals(O\Expression::returnExpression(), $function->getReturnExpression());
$this->assertSame(false, $function->hasReturnValueExpression());
$this->assertEquals(null, $function->getReturnValueExpression());
}
/**
* @dataProvider parsers
*/
public function testReturnValueStatement()
{
$this->assertParsedAs(function () {
return 1;
}, [O\Expression::returnExpression(O\Expression::value(1))]);
$this->assertParsedAs(function () {
return null;
}, [O\Expression::returnExpression(O\Expression::constant('null'))]);
$this->assertParsedAs(function () {
return '';
}, [O\Expression::returnExpression(O\Expression::value(''))]);
}
public function testFunctionWithReturnStatement()
{
$function = $this->functionWithReturnStatement();
$this->assertSame('', $function->getCallableId());
$this->assertSame(1, $function->getParameters()->count());
$this->assertEquals([O\Expression::parameter('foo')], $function->getParameters()->getAll());
$this->assertEquals(['param' => 'scope'], $function->getParameterScopedVariableMap());
$this->assertEquals(['', 'param'], $function->getParameterIds());
$this->assertSame(true, $function->hasScopeType());
$this->assertSame(__CLASS__, $function->getScopeType());
$this->assertSame(true, $function->hasNamespace());
$this->assertSame(__NAMESPACE__, $function->getNamespace());
$this->assertSame(4, $function->countBodyExpressions());
$this->assertSame(2, $function->countBodyExpressionsUntilReturn());
$this->assertEquals([O\Expression::value('before'), O\Expression::returnExpression(O\Expression::value('return')), O\Expression::value('after'), O\Expression::functionCall(O\Expression::value('boom'))], $function->getBodyExpressions());
$this->assertEquals([O\Expression::value('before'), O\Expression::returnExpression(O\Expression::value('return'))], $function->getBodyExpressionsUntilReturn());
$this->assertEquals(new O\EvaluationContext(__NAMESPACE__, __CLASS__, null, ['scope' => 'value']), $function->getEvaluationContextFactory()->getEvaluationContext(new ResolvedParameterRegistry(['param' => 'value'])));
}
private function parseStatementNode(Node\Stmt $node)
{
switch (true) {
case $node instanceof Node\Stmt\Return_:
return Expression::returnExpression($node->expr !== null ? $this->parseNode($node->expr) : null);
case $node instanceof Node\Stmt\Throw_:
return Expression::throwExpression($this->parseNode($node->expr));
case $node instanceof Node\Stmt\Unset_:
return Expression::unsetExpression($this->parseNodes($node->vars));
default:
$this->verifyNotControlStructure($node);
throw new ASTException('Cannot parse AST with unknown statement node: %s', get_class($node));
}
}
public function expressions()
{
return [[O\Expression::arrayExpression([])], [O\Expression::arrayItem(null, O\Expression::value(0), false)], [O\Expression::assign(O\Expression::value(0), O\Operators\Assignment::EQUAL, O\Expression::value(0))], [O\Expression::binaryOperation(O\Expression::value(0), O\Operators\Binary::ADDITION, O\Expression::value(0))], [O\Expression::unaryOperation(O\Operators\Unary::PLUS, O\Expression::value(0))], [O\Expression::cast(O\Operators\Cast::STRING, O\Expression::value(0))], [O\Expression::closure(false, false, [], [], [])], [O\Expression::closureUsedVariable('var')], [O\Expression::emptyExpression(O\Expression::value(0))], [O\Expression::field(O\Expression::value(0), O\Expression::value(0))], [O\Expression::functionCall(O\Expression::value(0))], [O\Expression::index(O\Expression::value(0), O\Expression::value(0))], [O\Expression::invocation(O\Expression::value(0))], [O\Expression::issetExpression([O\Expression::value(0)])], [O\Expression::unsetExpression([O\Expression::value(0)])], [O\Expression::methodCall(O\Expression::value(0), O\Expression::value(0))], [O\Expression::newExpression(O\Expression::value(0))], [O\Expression::parameter('')], [O\Expression::argument(O\Expression::value(0))], [O\Expression::returnExpression()], [O\Expression::staticMethodCall(O\Expression::value(0), O\Expression::value(0))], [O\Expression::staticField(O\Expression::value(0), O\Expression::value(0))], [O\Expression::ternary(O\Expression::value(0), null, O\Expression::value(0))], [O\Expression::throwExpression(O\Expression::value(0))], [O\Expression::value(0)], [O\Expression::variable(O\Expression::value(0))], [O\Expression::constant('foo')], [O\Expression::classConstant(O\Expression::value(0), 'foo')]];
}
/**
* @dataProvider parsers
*/
public function testInvokableObject()
{
$this->assertParsedAs(new InvokableObject(), [O\Expression::returnExpression(O\Expression::value(1.1))]);
}
/**
* Creates an expression evaluator for the expression with
* the supplied context.
*
* @param IEvaluationContext|null $context
*
* @return IEvaluator
*/
public function asEvaluator(IEvaluationContext $context = null)
{
return CompiledEvaluator::fromExpressions([Expression::returnExpression($this)], $context);
}
protected final function assertReturn(callable $function, O\Expression $valueExpression)
{
return $this->assertParsedAs($function, [O\Expression::returnExpression($valueExpression)]);
}
/**
* @dataProvider parsers
*/
public function testThatChainedMethodCalls()
{
$this->assertReturn(function (\Pinq\ITraversable $traversable) {
return $traversable->asArray();
}, O\Expression::methodCall(O\Expression::variable(O\Expression::value('traversable')), O\Expression::value('asArray')));
$this->assertReturn(function (\Pinq\ITraversable $traversable) {
return $traversable->where(function ($i) {
return $i > 0;
})->all(function ($i) {
return $i % 2 === 0;
});
}, O\Expression::methodCall(O\Expression::methodCall(O\Expression::variable(O\Expression::value('traversable')), O\Expression::value('where'), [O\Expression::argument(O\Expression::closure(false, false, [O\Expression::parameter('i')], [], [O\Expression::returnExpression(O\Expression::binaryOperation(O\Expression::variable(O\Expression::value('i')), O\Operators\Binary::GREATER_THAN, O\Expression::value(0)))]))]), O\Expression::value('all'), [O\Expression::argument(O\Expression::closure(false, false, [O\Expression::parameter('i')], [], [O\Expression::returnExpression(O\Expression::binaryOperation(O\Expression::binaryOperation(O\Expression::variable(O\Expression::value('i')), O\Operators\Binary::MODULUS, O\Expression::value(2)), O\Operators\Binary::IDENTITY, O\Expression::value(0)))]))]));
}
protected function exampleFromDocsQuery()
{
$rowExpression = O\Expression::variable(O\Expression::value('row'));
return $this->scopeRequest([new Q\Segments\Filter(new Q\Functions\ElementProjection($this->parameter(), self::SCOPE_TYPE, self::SCOPE_NAMESPACE, [$this->parameter() => 'this'], [O\Expression::parameter('row')], [O\Expression::returnExpression(O\Expression::binaryOperation(O\Expression::index($rowExpression, O\Expression::value('age')), O\Operators\Binary::LESS_THAN_OR_EQUAL_TO, O\Expression::value(50)))])), new Q\Segments\OrderBy([new Q\Segments\Ordering($this->indexProjection('firstName'), $this->parameter()), new Q\Segments\Ordering($this->indexProjection('lastName'), $this->parameter())]), new Q\Segments\Range($this->parameter(), $this->parameter()), new Q\Segments\IndexBy($this->indexProjection('phoneNumber')), new Q\Segments\Select(new Q\Functions\ElementProjection($this->parameter(), self::SCOPE_TYPE, self::SCOPE_NAMESPACE, [$this->parameter() => 'this'], [O\Expression::parameter('row')], [O\Expression::returnExpression(O\Expression::arrayExpression([O\Expression::arrayItem(O\Expression::value('fullName'), O\Expression::binaryOperation(O\Expression::binaryOperation(O\Expression::index($rowExpression, O\Expression::value('firstName')), O\Operators\Binary::CONCATENATION, O\Expression::value(' ')), O\Operators\Binary::CONCATENATION, O\Expression::index($rowExpression, O\Expression::value('lastName')))), O\Expression::arrayItem(O\Expression::value('address'), O\Expression::index($rowExpression, O\Expression::value('address'))), O\Expression::arrayItem(O\Expression::value('dateOfBirth'), O\Expression::index($rowExpression, O\Expression::value('dateOfBirth')))]))]))]);
}
public function testWithSpecialVariableNames()
{
$this->assertSame('1,2,3', O\CompiledEvaluator::fromExpressions([O\Expression::returnExpression(O\Expression::variable(O\Expression::value('a special var--')))], O\EvaluationContext::globalScope(null, ['a special var--' => '1,2,3']))->evaluate());
}
