php-parser/test/PhpParser/CodeParsingTest.php

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<?php declare(strict_types=1);
namespace PhpParser;
use PhpParser\Node\Expr;
use PhpParser\Node\Stmt;
require_once __DIR__ . '/CodeTestAbstract.php';
class CodeParsingTest extends CodeTestAbstract
{
/**
* @dataProvider provideTestParse
*/
public function testParse($name, $code, $expected, $modeLine) {
if (null !== $modeLine) {
$modes = array_fill_keys(explode(',', $modeLine), true);
} else {
$modes = [];
}
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list($parser5, $parser7) = $this->createParsers($modes);
list($stmts5, $output5) = $this->getParseOutput($parser5, $code, $modes);
list($stmts7, $output7) = $this->getParseOutput($parser7, $code, $modes);
if (isset($modes['php5'])) {
$this->assertSame($expected, $output5, $name);
$this->assertNotSame($expected, $output7, $name);
} else if (isset($modes['php7'])) {
$this->assertNotSame($expected, $output5, $name);
$this->assertSame($expected, $output7, $name);
} else {
$this->assertSame($expected, $output5, $name);
$this->assertSame($expected, $output7, $name);
}
$this->checkAttributes($stmts5);
$this->checkAttributes($stmts7);
}
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public function createParsers(array $modes) {
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$lexer = new Lexer\Emulative(['usedAttributes' => [
'startLine', 'endLine',
'startFilePos', 'endFilePos',
'startTokenPos', 'endTokenPos',
'comments'
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]]);
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return [
new Parser\Php5($lexer),
new Parser\Php7($lexer),
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];
}
private function getParseOutput(Parser $parser, $code, array $modes) {
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$dumpPositions = isset($modes['positions']);
$errors = new ErrorHandler\Collecting;
$stmts = $parser->parse($code, $errors);
$output = '';
foreach ($errors->getErrors() as $error) {
$output .= $this->formatErrorMessage($error, $code) . "\n";
}
if (null !== $stmts) {
$dumper = new NodeDumper(['dumpComments' => true, 'dumpPositions' => $dumpPositions]);
$output .= $dumper->dump($stmts, $code);
}
return [$stmts, canonicalize($output)];
}
public function provideTestParse() {
return $this->getTests(__DIR__ . '/../code/parser', 'test');
}
private function formatErrorMessage(Error $e, $code) {
if ($e->hasColumnInfo()) {
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return $e->getMessageWithColumnInfo($code);
} else {
return $e->getMessage();
}
}
private function checkAttributes($stmts) {
if ($stmts === null) {
return;
}
$traverser = new NodeTraverser();
$traverser->addVisitor(new class extends NodeVisitorAbstract {
public function enterNode(Node $node) {
$startLine = $node->getStartLine();
$endLine = $node->getEndLine();
$startFilePos = $node->getStartFilePos();
$endFilePos = $node->getEndFilePos();
$startTokenPos = $node->getStartTokenPos();
$endTokenPos = $node->getEndTokenPos();
if ($startLine < 0 || $endLine < 0 ||
$startFilePos < 0 || $endFilePos < 0 ||
$startTokenPos < 0 || $endTokenPos < 0
) {
throw new \Exception('Missing location information on ' . $node->getType());
}
if ($endLine < $startLine ||
$endFilePos < $startFilePos ||
$endTokenPos < $startTokenPos
) {
// Nops and error can have inverted order, if they are empty
if (!$node instanceof Stmt\Nop && !$node instanceof Expr\Error) {
throw new \Exception('End < start on ' . $node->getType());
}
}
}
});
$traverser->traverse($stmts);
}
}