diff options
Diffstat (limited to 'vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php')
| -rw-r--r-- | vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php | 1105 |
1 files changed, 1105 insertions, 0 deletions
diff --git a/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php b/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php new file mode 100644 index 000000000..bb70de659 --- /dev/null +++ b/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php @@ -0,0 +1,1105 @@ +<?php declare(strict_types=1); + +namespace PhpParser\PrettyPrinter; + +use PhpParser\Node; +use PhpParser\Node\Expr; +use PhpParser\Node\Expr\AssignOp; +use PhpParser\Node\Expr\BinaryOp; +use PhpParser\Node\Expr\Cast; +use PhpParser\Node\Name; +use PhpParser\Node\Scalar; +use PhpParser\Node\Scalar\MagicConst; +use PhpParser\Node\Stmt; +use PhpParser\PrettyPrinterAbstract; + +class Standard extends PrettyPrinterAbstract +{ + // Special nodes + + protected function pParam(Node\Param $node) { + return $this->pAttrGroups($node->attrGroups, true) + . $this->pModifiers($node->flags) + . ($node->type ? $this->p($node->type) . ' ' : '') + . ($node->byRef ? '&' : '') + . ($node->variadic ? '...' : '') + . $this->p($node->var) + . ($node->default ? ' = ' . $this->p($node->default) : ''); + } + + protected function pArg(Node\Arg $node) { + return ($node->name ? $node->name->toString() . ': ' : '') + . ($node->byRef ? '&' : '') . ($node->unpack ? '...' : '') + . $this->p($node->value); + } + + protected function pVariadicPlaceholder(Node\VariadicPlaceholder $node) { + return '...'; + } + + protected function pConst(Node\Const_ $node) { + return $node->name . ' = ' . $this->p($node->value); + } + + protected function pNullableType(Node\NullableType $node) { + return '?' . $this->p($node->type); + } + + protected function pUnionType(Node\UnionType $node) { + return $this->pImplode($node->types, '|'); + } + + protected function pIntersectionType(Node\IntersectionType $node) { + return $this->pImplode($node->types, '&'); + } + + protected function pIdentifier(Node\Identifier $node) { + return $node->name; + } + + protected function pVarLikeIdentifier(Node\VarLikeIdentifier $node) { + return '$' . $node->name; + } + + protected function pAttribute(Node\Attribute $node) { + return $this->p($node->name) + . ($node->args ? '(' . $this->pCommaSeparated($node->args) . ')' : ''); + } + + protected function pAttributeGroup(Node\AttributeGroup $node) { + return '#[' . $this->pCommaSeparated($node->attrs) . ']'; + } + + // Names + + protected function pName(Name $node) { + return implode('\\', $node->parts); + } + + protected function pName_FullyQualified(Name\FullyQualified $node) { + return '\\' . implode('\\', $node->parts); + } + + protected function pName_Relative(Name\Relative $node) { + return 'namespace\\' . implode('\\', $node->parts); + } + + // Magic Constants + + protected function pScalar_MagicConst_Class(MagicConst\Class_ $node) { + return '__CLASS__'; + } + + protected function pScalar_MagicConst_Dir(MagicConst\Dir $node) { + return '__DIR__'; + } + + protected function pScalar_MagicConst_File(MagicConst\File $node) { + return '__FILE__'; + } + + protected function pScalar_MagicConst_Function(MagicConst\Function_ $node) { + return '__FUNCTION__'; + } + + protected function pScalar_MagicConst_Line(MagicConst\Line $node) { + return '__LINE__'; + } + + protected function pScalar_MagicConst_Method(MagicConst\Method $node) { + return '__METHOD__'; + } + + protected function pScalar_MagicConst_Namespace(MagicConst\Namespace_ $node) { + return '__NAMESPACE__'; + } + + protected function pScalar_MagicConst_Trait(MagicConst\Trait_ $node) { + return '__TRAIT__'; + } + + // Scalars + + protected function pScalar_String(Scalar\String_ $node) { + $kind = $node->getAttribute('kind', Scalar\String_::KIND_SINGLE_QUOTED); + switch ($kind) { + case Scalar\String_::KIND_NOWDOC: + $label = $node->getAttribute('docLabel'); + if ($label && !$this->containsEndLabel($node->value, $label)) { + if ($node->value === '') { + return "<<<'$label'\n$label" . $this->docStringEndToken; + } + + return "<<<'$label'\n$node->value\n$label" + . $this->docStringEndToken; + } + /* break missing intentionally */ + case Scalar\String_::KIND_SINGLE_QUOTED: + return $this->pSingleQuotedString($node->value); + case Scalar\String_::KIND_HEREDOC: + $label = $node->getAttribute('docLabel'); + if ($label && !$this->containsEndLabel($node->value, $label)) { + if ($node->value === '') { + return "<<<$label\n$label" . $this->docStringEndToken; + } + + $escaped = $this->escapeString($node->value, null); + return "<<<$label\n" . $escaped . "\n$label" + . $this->docStringEndToken; + } + /* break missing intentionally */ + case Scalar\String_::KIND_DOUBLE_QUOTED: + return '"' . $this->escapeString($node->value, '"') . '"'; + } + throw new \Exception('Invalid string kind'); + } + + protected function pScalar_Encapsed(Scalar\Encapsed $node) { + if ($node->getAttribute('kind') === Scalar\String_::KIND_HEREDOC) { + $label = $node->getAttribute('docLabel'); + if ($label && !$this->encapsedContainsEndLabel($node->parts, $label)) { + if (count($node->parts) === 1 + && $node->parts[0] instanceof Scalar\EncapsedStringPart + && $node->parts[0]->value === '' + ) { + return "<<<$label\n$label" . $this->docStringEndToken; + } + + return "<<<$label\n" . $this->pEncapsList($node->parts, null) . "\n$label" + . $this->docStringEndToken; + } + } + return '"' . $this->pEncapsList($node->parts, '"') . '"'; + } + + protected function pScalar_LNumber(Scalar\LNumber $node) { + if ($node->value === -\PHP_INT_MAX-1) { + // PHP_INT_MIN cannot be represented as a literal, + // because the sign is not part of the literal + return '(-' . \PHP_INT_MAX . '-1)'; + } + + $kind = $node->getAttribute('kind', Scalar\LNumber::KIND_DEC); + if (Scalar\LNumber::KIND_DEC === $kind) { + return (string) $node->value; + } + + if ($node->value < 0) { + $sign = '-'; + $str = (string) -$node->value; + } else { + $sign = ''; + $str = (string) $node->value; + } + switch ($kind) { + case Scalar\LNumber::KIND_BIN: + return $sign . '0b' . base_convert($str, 10, 2); + case Scalar\LNumber::KIND_OCT: + return $sign . '0' . base_convert($str, 10, 8); + case Scalar\LNumber::KIND_HEX: + return $sign . '0x' . base_convert($str, 10, 16); + } + throw new \Exception('Invalid number kind'); + } + + protected function pScalar_DNumber(Scalar\DNumber $node) { + if (!is_finite($node->value)) { + if ($node->value === \INF) { + return '\INF'; + } elseif ($node->value === -\INF) { + return '-\INF'; + } else { + return '\NAN'; + } + } + + // Try to find a short full-precision representation + $stringValue = sprintf('%.16G', $node->value); + if ($node->value !== (double) $stringValue) { + $stringValue = sprintf('%.17G', $node->value); + } + + // %G is locale dependent and there exists no locale-independent alternative. We don't want + // mess with switching locales here, so let's assume that a comma is the only non-standard + // decimal separator we may encounter... + $stringValue = str_replace(',', '.', $stringValue); + + // ensure that number is really printed as float + return preg_match('/^-?[0-9]+$/', $stringValue) ? $stringValue . '.0' : $stringValue; + } + + protected function pScalar_EncapsedStringPart(Scalar\EncapsedStringPart $node) { + throw new \LogicException('Cannot directly print EncapsedStringPart'); + } + + // Assignments + + protected function pExpr_Assign(Expr\Assign $node) { + return $this->pInfixOp(Expr\Assign::class, $node->var, ' = ', $node->expr); + } + + protected function pExpr_AssignRef(Expr\AssignRef $node) { + return $this->pInfixOp(Expr\AssignRef::class, $node->var, ' =& ', $node->expr); + } + + protected function pExpr_AssignOp_Plus(AssignOp\Plus $node) { + return $this->pInfixOp(AssignOp\Plus::class, $node->var, ' += ', $node->expr); + } + + protected function pExpr_AssignOp_Minus(AssignOp\Minus $node) { + return $this->pInfixOp(AssignOp\Minus::class, $node->var, ' -= ', $node->expr); + } + + protected function pExpr_AssignOp_Mul(AssignOp\Mul $node) { + return $this->pInfixOp(AssignOp\Mul::class, $node->var, ' *= ', $node->expr); + } + + protected function pExpr_AssignOp_Div(AssignOp\Div $node) { + return $this->pInfixOp(AssignOp\Div::class, $node->var, ' /= ', $node->expr); + } + + protected function pExpr_AssignOp_Concat(AssignOp\Concat $node) { + return $this->pInfixOp(AssignOp\Concat::class, $node->var, ' .= ', $node->expr); + } + + protected function pExpr_AssignOp_Mod(AssignOp\Mod $node) { + return $this->pInfixOp(AssignOp\Mod::class, $node->var, ' %= ', $node->expr); + } + + protected function pExpr_AssignOp_BitwiseAnd(AssignOp\BitwiseAnd $node) { + return $this->pInfixOp(AssignOp\BitwiseAnd::class, $node->var, ' &= ', $node->expr); + } + + protected function pExpr_AssignOp_BitwiseOr(AssignOp\BitwiseOr $node) { + return $this->pInfixOp(AssignOp\BitwiseOr::class, $node->var, ' |= ', $node->expr); + } + + protected function pExpr_AssignOp_BitwiseXor(AssignOp\BitwiseXor $node) { + return $this->pInfixOp(AssignOp\BitwiseXor::class, $node->var, ' ^= ', $node->expr); + } + + protected function pExpr_AssignOp_ShiftLeft(AssignOp\ShiftLeft $node) { + return $this->pInfixOp(AssignOp\ShiftLeft::class, $node->var, ' <<= ', $node->expr); + } + + protected function pExpr_AssignOp_ShiftRight(AssignOp\ShiftRight $node) { + return $this->pInfixOp(AssignOp\ShiftRight::class, $node->var, ' >>= ', $node->expr); + } + + protected function pExpr_AssignOp_Pow(AssignOp\Pow $node) { + return $this->pInfixOp(AssignOp\Pow::class, $node->var, ' **= ', $node->expr); + } + + protected function pExpr_AssignOp_Coalesce(AssignOp\Coalesce $node) { + return $this->pInfixOp(AssignOp\Coalesce::class, $node->var, ' ??= ', $node->expr); + } + + // Binary expressions + + protected function pExpr_BinaryOp_Plus(BinaryOp\Plus $node) { + return $this->pInfixOp(BinaryOp\Plus::class, $node->left, ' + ', $node->right); + } + + protected function pExpr_BinaryOp_Minus(BinaryOp\Minus $node) { + return $this->pInfixOp(BinaryOp\Minus::class, $node->left, ' - ', $node->right); + } + + protected function pExpr_BinaryOp_Mul(BinaryOp\Mul $node) { + return $this->pInfixOp(BinaryOp\Mul::class, $node->left, ' * ', $node->right); + } + + protected function pExpr_BinaryOp_Div(BinaryOp\Div $node) { + return $this->pInfixOp(BinaryOp\Div::class, $node->left, ' / ', $node->right); + } + + protected function pExpr_BinaryOp_Concat(BinaryOp\Concat $node) { + return $this->pInfixOp(BinaryOp\Concat::class, $node->left, ' . ', $node->right); + } + + protected function pExpr_BinaryOp_Mod(BinaryOp\Mod $node) { + return $this->pInfixOp(BinaryOp\Mod::class, $node->left, ' % ', $node->right); + } + + protected function pExpr_BinaryOp_BooleanAnd(BinaryOp\BooleanAnd $node) { + return $this->pInfixOp(BinaryOp\BooleanAnd::class, $node->left, ' && ', $node->right); + } + + protected function pExpr_BinaryOp_BooleanOr(BinaryOp\BooleanOr $node) { + return $this->pInfixOp(BinaryOp\BooleanOr::class, $node->left, ' || ', $node->right); + } + + protected function pExpr_BinaryOp_BitwiseAnd(BinaryOp\BitwiseAnd $node) { + return $this->pInfixOp(BinaryOp\BitwiseAnd::class, $node->left, ' & ', $node->right); + } + + protected function pExpr_BinaryOp_BitwiseOr(BinaryOp\BitwiseOr $node) { + return $this->pInfixOp(BinaryOp\BitwiseOr::class, $node->left, ' | ', $node->right); + } + + protected function pExpr_BinaryOp_BitwiseXor(BinaryOp\BitwiseXor $node) { + return $this->pInfixOp(BinaryOp\BitwiseXor::class, $node->left, ' ^ ', $node->right); + } + + protected function pExpr_BinaryOp_ShiftLeft(BinaryOp\ShiftLeft $node) { + return $this->pInfixOp(BinaryOp\ShiftLeft::class, $node->left, ' << ', $node->right); + } + + protected function pExpr_BinaryOp_ShiftRight(BinaryOp\ShiftRight $node) { + return $this->pInfixOp(BinaryOp\ShiftRight::class, $node->left, ' >> ', $node->right); + } + + protected function pExpr_BinaryOp_Pow(BinaryOp\Pow $node) { + return $this->pInfixOp(BinaryOp\Pow::class, $node->left, ' ** ', $node->right); + } + + protected function pExpr_BinaryOp_LogicalAnd(BinaryOp\LogicalAnd $node) { + return $this->pInfixOp(BinaryOp\LogicalAnd::class, $node->left, ' and ', $node->right); + } + + protected function pExpr_BinaryOp_LogicalOr(BinaryOp\LogicalOr $node) { + return $this->pInfixOp(BinaryOp\LogicalOr::class, $node->left, ' or ', $node->right); + } + + protected function pExpr_BinaryOp_LogicalXor(BinaryOp\LogicalXor $node) { + return $this->pInfixOp(BinaryOp\LogicalXor::class, $node->left, ' xor ', $node->right); + } + + protected function pExpr_BinaryOp_Equal(BinaryOp\Equal $node) { + return $this->pInfixOp(BinaryOp\Equal::class, $node->left, ' == ', $node->right); + } + + protected function pExpr_BinaryOp_NotEqual(BinaryOp\NotEqual $node) { + return $this->pInfixOp(BinaryOp\NotEqual::class, $node->left, ' != ', $node->right); + } + + protected function pExpr_BinaryOp_Identical(BinaryOp\Identical $node) { + return $this->pInfixOp(BinaryOp\Identical::class, $node->left, ' === ', $node->right); + } + + protected function pExpr_BinaryOp_NotIdentical(BinaryOp\NotIdentical $node) { + return $this->pInfixOp(BinaryOp\NotIdentical::class, $node->left, ' !== ', $node->right); + } + + protected function pExpr_BinaryOp_Spaceship(BinaryOp\Spaceship $node) { + return $this->pInfixOp(BinaryOp\Spaceship::class, $node->left, ' <=> ', $node->right); + } + + protected function pExpr_BinaryOp_Greater(BinaryOp\Greater $node) { + return $this->pInfixOp(BinaryOp\Greater::class, $node->left, ' > ', $node->right); + } + + protected function pExpr_BinaryOp_GreaterOrEqual(BinaryOp\GreaterOrEqual $node) { + return $this->pInfixOp(BinaryOp\GreaterOrEqual::class, $node->left, ' >= ', $node->right); + } + + protected function pExpr_BinaryOp_Smaller(BinaryOp\Smaller $node) { + return $this->pInfixOp(BinaryOp\Smaller::class, $node->left, ' < ', $node->right); + } + + protected function pExpr_BinaryOp_SmallerOrEqual(BinaryOp\SmallerOrEqual $node) { + return $this->pInfixOp(BinaryOp\SmallerOrEqual::class, $node->left, ' <= ', $node->right); + } + + protected function pExpr_BinaryOp_Coalesce(BinaryOp\Coalesce $node) { + return $this->pInfixOp(BinaryOp\Coalesce::class, $node->left, ' ?? ', $node->right); + } + + protected function pExpr_Instanceof(Expr\Instanceof_ $node) { + list($precedence, $associativity) = $this->precedenceMap[Expr\Instanceof_::class]; + return $this->pPrec($node->expr, $precedence, $associativity, -1) + . ' instanceof ' + . $this->pNewVariable($node->class); + } + + // Unary expressions + + protected function pExpr_BooleanNot(Expr\BooleanNot $node) { + return $this->pPrefixOp(Expr\BooleanNot::class, '!', $node->expr); + } + + protected function pExpr_BitwiseNot(Expr\BitwiseNot $node) { + return $this->pPrefixOp(Expr\BitwiseNot::class, '~', $node->expr); + } + + protected function pExpr_UnaryMinus(Expr\UnaryMinus $node) { + if ($node->expr instanceof Expr\UnaryMinus || $node->expr instanceof Expr\PreDec) { + // Enforce -(-$expr) instead of --$expr + return '-(' . $this->p($node->expr) . ')'; + } + return $this->pPrefixOp(Expr\UnaryMinus::class, '-', $node->expr); + } + + protected function pExpr_UnaryPlus(Expr\UnaryPlus $node) { + if ($node->expr instanceof Expr\UnaryPlus || $node->expr instanceof Expr\PreInc) { + // Enforce +(+$expr) instead of ++$expr + return '+(' . $this->p($node->expr) . ')'; + } + return $this->pPrefixOp(Expr\UnaryPlus::class, '+', $node->expr); + } + + protected function pExpr_PreInc(Expr\PreInc $node) { + return $this->pPrefixOp(Expr\PreInc::class, '++', $node->var); + } + + protected function pExpr_PreDec(Expr\PreDec $node) { + return $this->pPrefixOp(Expr\PreDec::class, '--', $node->var); + } + + protected function pExpr_PostInc(Expr\PostInc $node) { + return $this->pPostfixOp(Expr\PostInc::class, $node->var, '++'); + } + + protected function pExpr_PostDec(Expr\PostDec $node) { + return $this->pPostfixOp(Expr\PostDec::class, $node->var, '--'); + } + + protected function pExpr_ErrorSuppress(Expr\ErrorSuppress $node) { + return $this->pPrefixOp(Expr\ErrorSuppress::class, '@', $node->expr); + } + + protected function pExpr_YieldFrom(Expr\YieldFrom $node) { + return $this->pPrefixOp(Expr\YieldFrom::class, 'yield from ', $node->expr); + } + + protected function pExpr_Print(Expr\Print_ $node) { + return $this->pPrefixOp(Expr\Print_::class, 'print ', $node->expr); + } + + // Casts + + protected function pExpr_Cast_Int(Cast\Int_ $node) { + return $this->pPrefixOp(Cast\Int_::class, '(int) ', $node->expr); + } + + protected function pExpr_Cast_Double(Cast\Double $node) { + $kind = $node->getAttribute('kind', Cast\Double::KIND_DOUBLE); + if ($kind === Cast\Double::KIND_DOUBLE) { + $cast = '(double)'; + } elseif ($kind === Cast\Double::KIND_FLOAT) { + $cast = '(float)'; + } elseif ($kind === Cast\Double::KIND_REAL) { + $cast = '(real)'; + } + return $this->pPrefixOp(Cast\Double::class, $cast . ' ', $node->expr); + } + + protected function pExpr_Cast_String(Cast\String_ $node) { + return $this->pPrefixOp(Cast\String_::class, '(string) ', $node->expr); + } + + protected function pExpr_Cast_Array(Cast\Array_ $node) { + return $this->pPrefixOp(Cast\Array_::class, '(array) ', $node->expr); + } + + protected function pExpr_Cast_Object(Cast\Object_ $node) { + return $this->pPrefixOp(Cast\Object_::class, '(object) ', $node->expr); + } + + protected function pExpr_Cast_Bool(Cast\Bool_ $node) { + return $this->pPrefixOp(Cast\Bool_::class, '(bool) ', $node->expr); + } + + protected function pExpr_Cast_Unset(Cast\Unset_ $node) { + return $this->pPrefixOp(Cast\Unset_::class, '(unset) ', $node->expr); + } + + // Function calls and similar constructs + + protected function pExpr_FuncCall(Expr\FuncCall $node) { + return $this->pCallLhs($node->name) + . '(' . $this->pMaybeMultiline($node->args) . ')'; + } + + protected function pExpr_MethodCall(Expr\MethodCall $node) { + return $this->pDereferenceLhs($node->var) . '->' . $this->pObjectProperty($node->name) + . '(' . $this->pMaybeMultiline($node->args) . ')'; + } + + protected function pExpr_NullsafeMethodCall(Expr\NullsafeMethodCall $node) { + return $this->pDereferenceLhs($node->var) . '?->' . $this->pObjectProperty($node->name) + . '(' . $this->pMaybeMultiline($node->args) . ')'; + } + + protected function pExpr_StaticCall(Expr\StaticCall $node) { + return $this->pDereferenceLhs($node->class) . '::' + . ($node->name instanceof Expr + ? ($node->name instanceof Expr\Variable + ? $this->p($node->name) + : '{' . $this->p($node->name) . '}') + : $node->name) + . '(' . $this->pMaybeMultiline($node->args) . ')'; + } + + protected function pExpr_Empty(Expr\Empty_ $node) { + return 'empty(' . $this->p($node->expr) . ')'; + } + + protected function pExpr_Isset(Expr\Isset_ $node) { + return 'isset(' . $this->pCommaSeparated($node->vars) . ')'; + } + + protected function pExpr_Eval(Expr\Eval_ $node) { + return 'eval(' . $this->p($node->expr) . ')'; + } + + protected function pExpr_Include(Expr\Include_ $node) { + static $map = [ + Expr\Include_::TYPE_INCLUDE => 'include', + Expr\Include_::TYPE_INCLUDE_ONCE => 'include_once', + Expr\Include_::TYPE_REQUIRE => 'require', + Expr\Include_::TYPE_REQUIRE_ONCE => 'require_once', + ]; + + return $map[$node->type] . ' ' . $this->p($node->expr); + } + + protected function pExpr_List(Expr\List_ $node) { + return 'list(' . $this->pCommaSeparated($node->items) . ')'; + } + + // Other + + protected function pExpr_Error(Expr\Error $node) { + throw new \LogicException('Cannot pretty-print AST with Error nodes'); + } + + protected function pExpr_Variable(Expr\Variable $node) { + if ($node->name instanceof Expr) { + return '${' . $this->p($node->name) . '}'; + } else { + return '$' . $node->name; + } + } + + protected function pExpr_Array(Expr\Array_ $node) { + $syntax = $node->getAttribute('kind', + $this->options['shortArraySyntax'] ? Expr\Array_::KIND_SHORT : Expr\Array_::KIND_LONG); + if ($syntax === Expr\Array_::KIND_SHORT) { + return '[' . $this->pMaybeMultiline($node->items, true) . ']'; + } else { + return 'array(' . $this->pMaybeMultiline($node->items, true) . ')'; + } + } + + protected function pExpr_ArrayItem(Expr\ArrayItem $node) { + return (null !== $node->key ? $this->p($node->key) . ' => ' : '') + . ($node->byRef ? '&' : '') + . ($node->unpack ? '...' : '') + . $this->p($node->value); + } + + protected function pExpr_ArrayDimFetch(Expr\ArrayDimFetch $node) { + return $this->pDereferenceLhs($node->var) + . '[' . (null !== $node->dim ? $this->p($node->dim) : '') . ']'; + } + + protected function pExpr_ConstFetch(Expr\ConstFetch $node) { + return $this->p($node->name); + } + + protected function pExpr_ClassConstFetch(Expr\ClassConstFetch $node) { + return $this->pDereferenceLhs($node->class) . '::' . $this->p($node->name); + } + + protected function pExpr_PropertyFetch(Expr\PropertyFetch $node) { + return $this->pDereferenceLhs($node->var) . '->' . $this->pObjectProperty($node->name); + } + + protected function pExpr_NullsafePropertyFetch(Expr\NullsafePropertyFetch $node) { + return $this->pDereferenceLhs($node->var) . '?->' . $this->pObjectProperty($node->name); + } + + protected function pExpr_StaticPropertyFetch(Expr\StaticPropertyFetch $node) { + return $this->pDereferenceLhs($node->class) . '::$' . $this->pObjectProperty($node->name); + } + + protected function pExpr_ShellExec(Expr\ShellExec $node) { + return '`' . $this->pEncapsList($node->parts, '`') . '`'; + } + + protected function pExpr_Closure(Expr\Closure $node) { + return $this->pAttrGroups($node->attrGroups, true) + . ($node->static ? 'static ' : '') + . 'function ' . ($node->byRef ? '&' : '') + . '(' . $this->pCommaSeparated($node->params) . ')' + . (!empty($node->uses) ? ' use(' . $this->pCommaSeparated($node->uses) . ')' : '') + . (null !== $node->returnType ? ' : ' . $this->p($node->returnType) : '') + . ' {' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pExpr_Match(Expr\Match_ $node) { + return 'match (' . $this->p($node->cond) . ') {' + . $this->pCommaSeparatedMultiline($node->arms, true) + . $this->nl + . '}'; + } + + protected function pMatchArm(Node\MatchArm $node) { + return ($node->conds ? $this->pCommaSeparated($node->conds) : 'default') + . ' => ' . $this->p($node->body); + } + + protected function pExpr_ArrowFunction(Expr\ArrowFunction $node) { + return $this->pAttrGroups($node->attrGroups, true) + . ($node->static ? 'static ' : '') + . 'fn' . ($node->byRef ? '&' : '') + . '(' . $this->pCommaSeparated($node->params) . ')' + . (null !== $node->returnType ? ': ' . $this->p($node->returnType) : '') + . ' => ' + . $this->p($node->expr); + } + + protected function pExpr_ClosureUse(Expr\ClosureUse $node) { + return ($node->byRef ? '&' : '') . $this->p($node->var); + } + + protected function pExpr_New(Expr\New_ $node) { + if ($node->class instanceof Stmt\Class_) { + $args = $node->args ? '(' . $this->pMaybeMultiline($node->args) . ')' : ''; + return 'new ' . $this->pClassCommon($node->class, $args); + } + return 'new ' . $this->pNewVariable($node->class) + . '(' . $this->pMaybeMultiline($node->args) . ')'; + } + + protected function pExpr_Clone(Expr\Clone_ $node) { + return 'clone ' . $this->p($node->expr); + } + + protected function pExpr_Ternary(Expr\Ternary $node) { + // a bit of cheating: we treat the ternary as a binary op where the ?...: part is the operator. + // this is okay because the part between ? and : never needs parentheses. + return $this->pInfixOp(Expr\Ternary::class, + $node->cond, ' ?' . (null !== $node->if ? ' ' . $this->p($node->if) . ' ' : '') . ': ', $node->else + ); + } + + protected function pExpr_Exit(Expr\Exit_ $node) { + $kind = $node->getAttribute('kind', Expr\Exit_::KIND_DIE); + return ($kind === Expr\Exit_::KIND_EXIT ? 'exit' : 'die') + . (null !== $node->expr ? '(' . $this->p($node->expr) . ')' : ''); + } + + protected function pExpr_Throw(Expr\Throw_ $node) { + return 'throw ' . $this->p($node->expr); + } + + protected function pExpr_Yield(Expr\Yield_ $node) { + if ($node->value === null) { + return 'yield'; + } else { + // this is a bit ugly, but currently there is no way to detect whether the parentheses are necessary + return '(yield ' + . ($node->key !== null ? $this->p($node->key) . ' => ' : '') + . $this->p($node->value) + . ')'; + } + } + + // Declarations + + protected function pStmt_Namespace(Stmt\Namespace_ $node) { + if ($this->canUseSemicolonNamespaces) { + return 'namespace ' . $this->p($node->name) . ';' + . $this->nl . $this->pStmts($node->stmts, false); + } else { + return 'namespace' . (null !== $node->name ? ' ' . $this->p($node->name) : '') + . ' {' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + } + + protected function pStmt_Use(Stmt\Use_ $node) { + return 'use ' . $this->pUseType($node->type) + . $this->pCommaSeparated($node->uses) . ';'; + } + + protected function pStmt_GroupUse(Stmt\GroupUse $node) { + return 'use ' . $this->pUseType($node->type) . $this->pName($node->prefix) + . '\{' . $this->pCommaSeparated($node->uses) . '};'; + } + + protected function pStmt_UseUse(Stmt\UseUse $node) { + return $this->pUseType($node->type) . $this->p($node->name) + . (null !== $node->alias ? ' as ' . $node->alias : ''); + } + + protected function pUseType($type) { + return $type === Stmt\Use_::TYPE_FUNCTION ? 'function ' + : ($type === Stmt\Use_::TYPE_CONSTANT ? 'const ' : ''); + } + + protected function pStmt_Interface(Stmt\Interface_ $node) { + return $this->pAttrGroups($node->attrGroups) + . 'interface ' . $node->name + . (!empty($node->extends) ? ' extends ' . $this->pCommaSeparated($node->extends) : '') + . $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Enum(Stmt\Enum_ $node) { + return $this->pAttrGroups($node->attrGroups) + . 'enum ' . $node->name + . ($node->scalarType ? " : $node->scalarType" : '') + . (!empty($node->implements) ? ' implements ' . $this->pCommaSeparated($node->implements) : '') + . $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Class(Stmt\Class_ $node) { + return $this->pClassCommon($node, ' ' . $node->name); + } + + protected function pStmt_Trait(Stmt\Trait_ $node) { + return $this->pAttrGroups($node->attrGroups) + . 'trait ' . $node->name + . $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_EnumCase(Stmt\EnumCase $node) { + return $this->pAttrGroups($node->attrGroups) + . 'case ' . $node->name + . ($node->expr ? ' = ' . $this->p($node->expr) : '') + . ';'; + } + + protected function pStmt_TraitUse(Stmt\TraitUse $node) { + return 'use ' . $this->pCommaSeparated($node->traits) + . (empty($node->adaptations) + ? ';' + : ' {' . $this->pStmts($node->adaptations) . $this->nl . '}'); + } + + protected function pStmt_TraitUseAdaptation_Precedence(Stmt\TraitUseAdaptation\Precedence $node) { + return $this->p($node->trait) . '::' . $node->method + . ' insteadof ' . $this->pCommaSeparated($node->insteadof) . ';'; + } + + protected function pStmt_TraitUseAdaptation_Alias(Stmt\TraitUseAdaptation\Alias $node) { + return (null !== $node->trait ? $this->p($node->trait) . '::' : '') + . $node->method . ' as' + . (null !== $node->newModifier ? ' ' . rtrim($this->pModifiers($node->newModifier), ' ') : '') + . (null !== $node->newName ? ' ' . $node->newName : '') + . ';'; + } + + protected function pStmt_Property(Stmt\Property $node) { + return $this->pAttrGroups($node->attrGroups) + . (0 === $node->flags ? 'var ' : $this->pModifiers($node->flags)) + . ($node->type ? $this->p($node->type) . ' ' : '') + . $this->pCommaSeparated($node->props) . ';'; + } + + protected function pStmt_PropertyProperty(Stmt\PropertyProperty $node) { + return '$' . $node->name + . (null !== $node->default ? ' = ' . $this->p($node->default) : ''); + } + + protected function pStmt_ClassMethod(Stmt\ClassMethod $node) { + return $this->pAttrGroups($node->attrGroups) + . $this->pModifiers($node->flags) + . 'function ' . ($node->byRef ? '&' : '') . $node->name + . '(' . $this->pMaybeMultiline($node->params) . ')' + . (null !== $node->returnType ? ' : ' . $this->p($node->returnType) : '') + . (null !== $node->stmts + ? $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}' + : ';'); + } + + protected function pStmt_ClassConst(Stmt\ClassConst $node) { + return $this->pAttrGroups($node->attrGroups) + . $this->pModifiers($node->flags) + . 'const ' . $this->pCommaSeparated($node->consts) . ';'; + } + + protected function pStmt_Function(Stmt\Function_ $node) { + return $this->pAttrGroups($node->attrGroups) + . 'function ' . ($node->byRef ? '&' : '') . $node->name + . '(' . $this->pCommaSeparated($node->params) . ')' + . (null !== $node->returnType ? ' : ' . $this->p($node->returnType) : '') + . $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Const(Stmt\Const_ $node) { + return 'const ' . $this->pCommaSeparated($node->consts) . ';'; + } + + protected function pStmt_Declare(Stmt\Declare_ $node) { + return 'declare (' . $this->pCommaSeparated($node->declares) . ')' + . (null !== $node->stmts ? ' {' . $this->pStmts($node->stmts) . $this->nl . '}' : ';'); + } + + protected function pStmt_DeclareDeclare(Stmt\DeclareDeclare $node) { + return $node->key . '=' . $this->p($node->value); + } + + // Control flow + + protected function pStmt_If(Stmt\If_ $node) { + return 'if (' . $this->p($node->cond) . ') {' + . $this->pStmts($node->stmts) . $this->nl . '}' + . ($node->elseifs ? ' ' . $this->pImplode($node->elseifs, ' ') : '') + . (null !== $node->else ? ' ' . $this->p($node->else) : ''); + } + + protected function pStmt_ElseIf(Stmt\ElseIf_ $node) { + return 'elseif (' . $this->p($node->cond) . ') {' + . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Else(Stmt\Else_ $node) { + return 'else {' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_For(Stmt\For_ $node) { + return 'for (' + . $this->pCommaSeparated($node->init) . ';' . (!empty($node->cond) ? ' ' : '') + . $this->pCommaSeparated($node->cond) . ';' . (!empty($node->loop) ? ' ' : '') + . $this->pCommaSeparated($node->loop) + . ') {' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Foreach(Stmt\Foreach_ $node) { + return 'foreach (' . $this->p($node->expr) . ' as ' + . (null !== $node->keyVar ? $this->p($node->keyVar) . ' => ' : '') + . ($node->byRef ? '&' : '') . $this->p($node->valueVar) . ') {' + . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_While(Stmt\While_ $node) { + return 'while (' . $this->p($node->cond) . ') {' + . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Do(Stmt\Do_ $node) { + return 'do {' . $this->pStmts($node->stmts) . $this->nl + . '} while (' . $this->p($node->cond) . ');'; + } + + protected function pStmt_Switch(Stmt\Switch_ $node) { + return 'switch (' . $this->p($node->cond) . ') {' + . $this->pStmts($node->cases) . $this->nl . '}'; + } + + protected function pStmt_Case(Stmt\Case_ $node) { + return (null !== $node->cond ? 'case ' . $this->p($node->cond) : 'default') . ':' + . $this->pStmts($node->stmts); + } + + protected function pStmt_TryCatch(Stmt\TryCatch $node) { + return 'try {' . $this->pStmts($node->stmts) . $this->nl . '}' + . ($node->catches ? ' ' . $this->pImplode($node->catches, ' ') : '') + . ($node->finally !== null ? ' ' . $this->p($node->finally) : ''); + } + + protected function pStmt_Catch(Stmt\Catch_ $node) { + return 'catch (' . $this->pImplode($node->types, '|') + . ($node->var !== null ? ' ' . $this->p($node->var) : '') + . ') {' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Finally(Stmt\Finally_ $node) { + return 'finally {' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pStmt_Break(Stmt\Break_ $node) { + return 'break' . ($node->num !== null ? ' ' . $this->p($node->num) : '') . ';'; + } + + protected function pStmt_Continue(Stmt\Continue_ $node) { + return 'continue' . ($node->num !== null ? ' ' . $this->p($node->num) : '') . ';'; + } + + protected function pStmt_Return(Stmt\Return_ $node) { + return 'return' . (null !== $node->expr ? ' ' . $this->p($node->expr) : '') . ';'; + } + + protected function pStmt_Throw(Stmt\Throw_ $node) { + return 'throw ' . $this->p($node->expr) . ';'; + } + + protected function pStmt_Label(Stmt\Label $node) { + return $node->name . ':'; + } + + protected function pStmt_Goto(Stmt\Goto_ $node) { + return 'goto ' . $node->name . ';'; + } + + // Other + + protected function pStmt_Expression(Stmt\Expression $node) { + return $this->p($node->expr) . ';'; + } + + protected function pStmt_Echo(Stmt\Echo_ $node) { + return 'echo ' . $this->pCommaSeparated($node->exprs) . ';'; + } + + protected function pStmt_Static(Stmt\Static_ $node) { + return 'static ' . $this->pCommaSeparated($node->vars) . ';'; + } + + protected function pStmt_Global(Stmt\Global_ $node) { + return 'global ' . $this->pCommaSeparated($node->vars) . ';'; + } + + protected function pStmt_StaticVar(Stmt\StaticVar $node) { + return $this->p($node->var) + . (null !== $node->default ? ' = ' . $this->p($node->default) : ''); + } + + protected function pStmt_Unset(Stmt\Unset_ $node) { + return 'unset(' . $this->pCommaSeparated($node->vars) . ');'; + } + + protected function pStmt_InlineHTML(Stmt\InlineHTML $node) { + $newline = $node->getAttribute('hasLeadingNewline', true) ? "\n" : ''; + return '?>' . $newline . $node->value . '<?php '; + } + + protected function pStmt_HaltCompiler(Stmt\HaltCompiler $node) { + return '__halt_compiler();' . $node->remaining; + } + + protected function pStmt_Nop(Stmt\Nop $node) { + return ''; + } + + // Helpers + + protected function pClassCommon(Stmt\Class_ $node, $afterClassToken) { + return $this->pAttrGroups($node->attrGroups, $node->name === null) + . $this->pModifiers($node->flags) + . 'class' . $afterClassToken + . (null !== $node->extends ? ' extends ' . $this->p($node->extends) : '') + . (!empty($node->implements) ? ' implements ' . $this->pCommaSeparated($node->implements) : '') + . $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}'; + } + + protected function pObjectProperty($node) { + if ($node instanceof Expr) { + return '{' . $this->p($node) . '}'; + } else { + return $node; + } + } + + protected function pEncapsList(array $encapsList, $quote) { + $return = ''; + foreach ($encapsList as $element) { + if ($element instanceof Scalar\EncapsedStringPart) { + $return .= $this->escapeString($element->value, $quote); + } else { + $return .= '{' . $this->p($element) . '}'; + } + } + + return $return; + } + + protected function pSingleQuotedString(string $string) { + return '\'' . addcslashes($string, '\'\\') . '\''; + } + + protected function escapeString($string, $quote) { + if (null === $quote) { + // For doc strings, don't escape newlines + $escaped = addcslashes($string, "\t\f\v$\\"); + } else { + $escaped = addcslashes($string, "\n\r\t\f\v$" . $quote . "\\"); + } + + // Escape control characters and non-UTF-8 characters. + // Regex based on https://stackoverflow.com/a/11709412/385378. + $regex = '/( + [\x00-\x08\x0E-\x1F] # Control characters + | [\xC0-\xC1] # Invalid UTF-8 Bytes + | [\xF5-\xFF] # Invalid UTF-8 Bytes + | \xE0(?=[\x80-\x9F]) # Overlong encoding of prior code point + | \xF0(?=[\x80-\x8F]) # Overlong encoding of prior code point + | [\xC2-\xDF](?![\x80-\xBF]) # Invalid UTF-8 Sequence Start + | [\xE0-\xEF](?![\x80-\xBF]{2}) # Invalid UTF-8 Sequence Start + | [\xF0-\xF4](?![\x80-\xBF]{3}) # Invalid UTF-8 Sequence Start + | (?<=[\x00-\x7F\xF5-\xFF])[\x80-\xBF] # Invalid UTF-8 Sequence Middle + | (?<![\xC2-\xDF]|[\xE0-\xEF]|[\xE0-\xEF][\x80-\xBF]|[\xF0-\xF4]|[\xF0-\xF4][\x80-\xBF]|[\xF0-\xF4][\x80-\xBF]{2})[\x80-\xBF] # Overlong Sequence + | (?<=[\xE0-\xEF])[\x80-\xBF](?![\x80-\xBF]) # Short 3 byte sequence + | (?<=[\xF0-\xF4])[\x80-\xBF](?![\x80-\xBF]{2}) # Short 4 byte sequence + | (?<=[\xF0-\xF4][\x80-\xBF])[\x80-\xBF](?![\x80-\xBF]) # Short 4 byte sequence (2) + )/x'; + return preg_replace_callback($regex, function ($matches) { + assert(strlen($matches[0]) === 1); + $hex = dechex(ord($matches[0]));; + return '\\x' . str_pad($hex, 2, '0', \STR_PAD_LEFT); + }, $escaped); + } + + protected function containsEndLabel($string, $label, $atStart = true, $atEnd = true) { + $start = $atStart ? '(?:^|[\r\n])' : '[\r\n]'; + $end = $atEnd ? '(?:$|[;\r\n])' : '[;\r\n]'; + return false !== strpos($string, $label) + && preg_match('/' . $start . $label . $end . '/', $string); + } + + protected function encapsedContainsEndLabel(array $parts, $label) { + foreach ($parts as $i => $part) { + $atStart = $i === 0; + $atEnd = $i === count($parts) - 1; + if ($part instanceof Scalar\EncapsedStringPart + && $this->containsEndLabel($part->value, $label, $atStart, $atEnd) + ) { + return true; + } + } + return false; + } + + protected function pDereferenceLhs(Node $node) { + if (!$this->dereferenceLhsRequiresParens($node)) { + return $this->p($node); + } else { + return '(' . $this->p($node) . ')'; + } + } + + protected function pCallLhs(Node $node) { + if (!$this->callLhsRequiresParens($node)) { + return $this->p($node); + } else { + return '(' . $this->p($node) . ')'; + } + } + + protected function pNewVariable(Node $node) { + // TODO: This is not fully accurate. + return $this->pDereferenceLhs($node); + } + + /** + * @param Node[] $nodes + * @return bool + */ + protected function hasNodeWithComments(array $nodes) { + foreach ($nodes as $node) { + if ($node && $node->getComments()) { + return true; + } + } + return false; + } + + protected function pMaybeMultiline(array $nodes, bool $trailingComma = false) { + if (!$this->hasNodeWithComments($nodes)) { + return $this->pCommaSeparated($nodes); + } else { + return $this->pCommaSeparatedMultiline($nodes, $trailingComma) . $this->nl; + } + } + + protected function pAttrGroups(array $nodes, bool $inline = false): string { + $result = ''; + $sep = $inline ? ' ' : $this->nl; + foreach ($nodes as $node) { + $result .= $this->p($node) . $sep; + } + + return $result; + } +} |