mirror of
https://github.com/phabelio/PHP-Parser.git
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284 lines
9.5 KiB
PHP
284 lines
9.5 KiB
PHP
<?php declare(strict_types=1);
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namespace PhpParser\Lexer;
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use PhpParser\ErrorHandler;
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use PhpParser\Lexer;
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use PhpParser\LexerTest;
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use PhpParser\Parser\Tokens;
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class EmulativeTest extends LexerTest
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{
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protected function getLexer(array $options = []) {
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return new Emulative($options);
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}
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/**
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* @dataProvider provideTestReplaceKeywords
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*/
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public function testReplaceKeywords($keyword, $expectedToken) {
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$lexer = $this->getLexer();
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$lexer->startLexing('<?php ' . $keyword);
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$this->assertSame($expectedToken, $lexer->getNextToken());
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$this->assertSame(0, $lexer->getNextToken());
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}
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/**
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* @dataProvider provideTestReplaceKeywords
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*/
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public function testNoReplaceKeywordsAfterObjectOperator(string $keyword) {
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$lexer = $this->getLexer();
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$lexer->startLexing('<?php ->' . $keyword);
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$this->assertSame(Tokens::T_OBJECT_OPERATOR, $lexer->getNextToken());
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$this->assertSame(Tokens::T_STRING, $lexer->getNextToken());
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$this->assertSame(0, $lexer->getNextToken());
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}
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/**
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* @dataProvider provideTestReplaceKeywords
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*/
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public function testNoReplaceKeywordsAfterObjectOperatorWithSpaces(string $keyword) {
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$lexer = $this->getLexer();
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$lexer->startLexing('<?php -> ' . $keyword);
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$this->assertSame(Tokens::T_OBJECT_OPERATOR, $lexer->getNextToken());
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$this->assertSame(Tokens::T_STRING, $lexer->getNextToken());
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$this->assertSame(0, $lexer->getNextToken());
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}
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public function provideTestReplaceKeywords() {
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return [
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// PHP 8.0
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['match', Tokens::T_MATCH],
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// PHP 7.4
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['fn', Tokens::T_FN],
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// PHP 5.5
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['finally', Tokens::T_FINALLY],
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['yield', Tokens::T_YIELD],
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// PHP 5.4
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['callable', Tokens::T_CALLABLE],
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['insteadof', Tokens::T_INSTEADOF],
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['trait', Tokens::T_TRAIT],
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['__TRAIT__', Tokens::T_TRAIT_C],
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// PHP 5.3
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['__DIR__', Tokens::T_DIR],
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['goto', Tokens::T_GOTO],
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['namespace', Tokens::T_NAMESPACE],
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['__NAMESPACE__', Tokens::T_NS_C],
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];
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}
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private function assertSameTokens(array $expectedTokens, Lexer $lexer) {
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$tokens = [];
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while (0 !== $token = $lexer->getNextToken($text)) {
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$tokens[] = [$token, $text];
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}
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$this->assertSame($expectedTokens, $tokens);
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}
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/**
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* @dataProvider provideTestLexNewFeatures
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*/
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public function testLexNewFeatures($code, array $expectedTokens) {
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$lexer = $this->getLexer();
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$lexer->startLexing('<?php ' . $code);
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$this->assertSameTokens($expectedTokens, $lexer);
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}
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/**
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* @dataProvider provideTestLexNewFeatures
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*/
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public function testLeaveStuffAloneInStrings($code) {
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$stringifiedToken = '"' . addcslashes($code, '"\\') . '"';
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$lexer = $this->getLexer();
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$lexer->startLexing('<?php ' . $stringifiedToken);
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$this->assertSame(Tokens::T_CONSTANT_ENCAPSED_STRING, $lexer->getNextToken($text));
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$this->assertSame($stringifiedToken, $text);
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$this->assertSame(0, $lexer->getNextToken());
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}
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/**
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* @dataProvider provideTestLexNewFeatures
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*/
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public function testErrorAfterEmulation($code) {
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$errorHandler = new ErrorHandler\Collecting;
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$lexer = $this->getLexer();
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$lexer->startLexing('<?php ' . $code . "\0", $errorHandler);
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$errors = $errorHandler->getErrors();
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$this->assertCount(1, $errors);
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$error = $errors[0];
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$this->assertSame('Unexpected null byte', $error->getRawMessage());
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$attrs = $error->getAttributes();
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$expPos = strlen('<?php ' . $code);
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$expLine = 1 + substr_count('<?php ' . $code, "\n");
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$this->assertSame($expPos, $attrs['startFilePos']);
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$this->assertSame($expPos, $attrs['endFilePos']);
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$this->assertSame($expLine, $attrs['startLine']);
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$this->assertSame($expLine, $attrs['endLine']);
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}
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public function provideTestLexNewFeatures() {
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return [
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['yield from', [
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[Tokens::T_YIELD_FROM, 'yield from'],
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]],
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["yield\r\nfrom", [
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[Tokens::T_YIELD_FROM, "yield\r\nfrom"],
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]],
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['...', [
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[Tokens::T_ELLIPSIS, '...'],
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]],
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['**', [
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[Tokens::T_POW, '**'],
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]],
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['**=', [
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[Tokens::T_POW_EQUAL, '**='],
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]],
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['??', [
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[Tokens::T_COALESCE, '??'],
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]],
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['<=>', [
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[Tokens::T_SPACESHIP, '<=>'],
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]],
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['0b1010110', [
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[Tokens::T_LNUMBER, '0b1010110'],
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]],
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['0b1011010101001010110101010010101011010101010101101011001110111100', [
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[Tokens::T_DNUMBER, '0b1011010101001010110101010010101011010101010101101011001110111100'],
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]],
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['\\', [
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[Tokens::T_NS_SEPARATOR, '\\'],
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]],
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["<<<'NOWDOC'\nNOWDOC;\n", [
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[Tokens::T_START_HEREDOC, "<<<'NOWDOC'\n"],
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[Tokens::T_END_HEREDOC, 'NOWDOC'],
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[ord(';'), ';'],
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]],
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["<<<'NOWDOC'\nFoobar\nNOWDOC;\n", [
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[Tokens::T_START_HEREDOC, "<<<'NOWDOC'\n"],
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[Tokens::T_ENCAPSED_AND_WHITESPACE, "Foobar\n"],
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[Tokens::T_END_HEREDOC, 'NOWDOC'],
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[ord(';'), ';'],
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]],
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// PHP 7.3: Flexible heredoc/nowdoc
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["<<<LABEL\nLABEL,", [
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[Tokens::T_START_HEREDOC, "<<<LABEL\n"],
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[Tokens::T_END_HEREDOC, "LABEL"],
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[ord(','), ','],
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]],
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["<<<LABEL\n LABEL,", [
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[Tokens::T_START_HEREDOC, "<<<LABEL\n"],
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[Tokens::T_END_HEREDOC, " LABEL"],
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[ord(','), ','],
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]],
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["<<<LABEL\n Foo\n LABEL;", [
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[Tokens::T_START_HEREDOC, "<<<LABEL\n"],
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[Tokens::T_ENCAPSED_AND_WHITESPACE, " Foo\n"],
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[Tokens::T_END_HEREDOC, " LABEL"],
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[ord(';'), ';'],
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]],
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["<<<A\n A,<<<A\n A,", [
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[Tokens::T_START_HEREDOC, "<<<A\n"],
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[Tokens::T_END_HEREDOC, " A"],
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[ord(','), ','],
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[Tokens::T_START_HEREDOC, "<<<A\n"],
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[Tokens::T_END_HEREDOC, " A"],
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[ord(','), ','],
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]],
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["<<<LABEL\nLABELNOPE\nLABEL\n", [
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[Tokens::T_START_HEREDOC, "<<<LABEL\n"],
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[Tokens::T_ENCAPSED_AND_WHITESPACE, "LABELNOPE\n"],
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[Tokens::T_END_HEREDOC, "LABEL"],
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]],
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// Interpretation changed
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["<<<LABEL\n LABEL\nLABEL\n", [
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[Tokens::T_START_HEREDOC, "<<<LABEL\n"],
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[Tokens::T_END_HEREDOC, " LABEL"],
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[Tokens::T_STRING, "LABEL"],
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]],
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// PHP 7.4: Null coalesce equal
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['??=', [
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[Tokens::T_COALESCE_EQUAL, '??='],
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]],
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// PHP 7.4: Number literal separator
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['1_000', [
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[Tokens::T_LNUMBER, '1_000'],
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]],
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['0xCAFE_F00D', [
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[Tokens::T_LNUMBER, '0xCAFE_F00D'],
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]],
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['0b0101_1111', [
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[Tokens::T_LNUMBER, '0b0101_1111'],
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]],
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['0137_041', [
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[Tokens::T_LNUMBER, '0137_041'],
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]],
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['1_000.0', [
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[Tokens::T_DNUMBER, '1_000.0'],
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]],
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['1_0.0', [
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[Tokens::T_DNUMBER, '1_0.0']
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]],
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['1_000_000_000.0', [
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[Tokens::T_DNUMBER, '1_000_000_000.0']
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]],
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['0e1_0', [
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[Tokens::T_DNUMBER, '0e1_0']
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]],
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['1_0e+10', [
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[Tokens::T_DNUMBER, '1_0e+10']
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]],
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['1_0e-10', [
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[Tokens::T_DNUMBER, '1_0e-10']
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]],
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['0b1011010101001010_110101010010_10101101010101_0101101011001_110111100', [
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[Tokens::T_DNUMBER, '0b1011010101001010_110101010010_10101101010101_0101101011001_110111100'],
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]],
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['0xFFFF_FFFF_FFFF_FFFF', [
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[Tokens::T_DNUMBER, '0xFFFF_FFFF_FFFF_FFFF'],
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]],
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['1_000+1', [
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[Tokens::T_LNUMBER, '1_000'],
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[ord('+'), '+'],
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[Tokens::T_LNUMBER, '1'],
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]],
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['1_0abc', [
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[Tokens::T_LNUMBER, '1_0'],
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[Tokens::T_STRING, 'abc'],
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]],
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];
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}
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/**
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* @dataProvider provideTestTargetVersion
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*/
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public function testTargetVersion(string $phpVersion, string $code, array $expectedTokens) {
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$lexer = $this->getLexer(['phpVersion' => $phpVersion]);
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$lexer->startLexing('<?php ' . $code);
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$this->assertSameTokens($expectedTokens, $lexer);
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}
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public function provideTestTargetVersion() {
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return [
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['8.0', 'match', [[Tokens::T_MATCH, 'match']]],
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['7.4', 'match', [[Tokens::T_STRING, 'match']]],
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['7.4', 'fn', [[Tokens::T_FN, 'fn']]],
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['7.3', 'fn', [[Tokens::T_STRING, 'fn']]],
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];
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}
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}
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