Файл: vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php
Строк: 2072
<?php declare(strict_types=1);
namespace PhpParserPrettyPrinter;
use PhpParserNode;
use PhpParserNodeExpr;
use PhpParserNodeExprAssignOp;
use PhpParserNodeExprBinaryOp;
use PhpParserNodeExprCast;
use PhpParserNodeName;
use PhpParserNodeScalar;
use PhpParserNodeScalarMagicConst;
use PhpParserNodeStmt;
use PhpParserPrettyPrinterAbstract;
class Standard extends PrettyPrinterAbstract
{
// Special nodes
protected function pParam(NodeParam $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(NodeArg $node) {
return ($node->name ? $node->name->toString() . ': ' : '')
. ($node->byRef ? '&' : '') . ($node->unpack ? '...' : '')
. $this->p($node->value);
}
protected function pVariadicPlaceholder(NodeVariadicPlaceholder $node) {
return '...';
}
protected function pConst(NodeConst_ $node) {
return $node->name . ' = ' . $this->p($node->value);
}
protected function pNullableType(NodeNullableType $node) {
return '?' . $this->p($node->type);
}
protected function pUnionType(NodeUnionType $node) {
$types = [];
foreach ($node->types as $typeNode) {
if ($typeNode instanceof NodeIntersectionType) {
$types[] = '('. $this->p($typeNode) . ')';
continue;
}
$types[] = $this->p($typeNode);
}
return implode('|', $types);
}
protected function pIntersectionType(NodeIntersectionType $node) {
return $this->pImplode($node->types, '&');
}
protected function pIdentifier(NodeIdentifier $node) {
return $node->name;
}
protected function pVarLikeIdentifier(NodeVarLikeIdentifier $node) {
return '$' . $node->name;
}
protected function pAttribute(NodeAttribute $node) {
return $this->p($node->name)
. ($node->args ? '(' . $this->pCommaSeparated($node->args) . ')' : '');
}
protected function pAttributeGroup(NodeAttributeGroup $node) {
return '#[' . $this->pCommaSeparated($node->attrs) . ']';
}
// Names
protected function pName(Name $node) {
return implode('\', $node->parts);
}
protected function pName_FullyQualified(NameFullyQualified $node) {
return '\' . implode('\', $node->parts);
}
protected function pName_Relative(NameRelative $node) {
return 'namespace\' . implode('\', $node->parts);
}
// Magic Constants
protected function pScalar_MagicConst_Class(MagicConstClass_ $node) {
return '__CLASS__';
}
protected function pScalar_MagicConst_Dir(MagicConstDir $node) {
return '__DIR__';
}
protected function pScalar_MagicConst_File(MagicConstFile $node) {
return '__FILE__';
}
protected function pScalar_MagicConst_Function(MagicConstFunction_ $node) {
return '__FUNCTION__';
}
protected function pScalar_MagicConst_Line(MagicConstLine $node) {
return '__LINE__';
}
protected function pScalar_MagicConst_Method(MagicConstMethod $node) {
return '__METHOD__';
}
protected function pScalar_MagicConst_Namespace(MagicConstNamespace_ $node) {
return '__NAMESPACE__';
}
protected function pScalar_MagicConst_Trait(MagicConstTrait_ $node) {
return '__TRAIT__';
}
// Scalars
protected function pScalar_String(ScalarString_ $node) {
$kind = $node->getAttribute('kind', ScalarString_::KIND_SINGLE_QUOTED);
switch ($kind) {
case ScalarString_::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$node->valuen$label"
. $this->docStringEndToken;
}
/* break missing intentionally */
case ScalarString_::KIND_SINGLE_QUOTED:
return $this->pSingleQuotedString($node->value);
case ScalarString_::KIND_HEREDOC:
$label = $node->getAttribute('docLabel');
if ($label && !$this->containsEndLabel($node->value, $label)) {
if ($node->value === '') {
return "<<<$labeln$label" . $this->docStringEndToken;
}
$escaped = $this->escapeString($node->value, null);
return "<<<$labeln" . $escaped . "n$label"
. $this->docStringEndToken;
}
/* break missing intentionally */
case ScalarString_::KIND_DOUBLE_QUOTED:
return '"' . $this->escapeString($node->value, '"') . '"';
}
throw new Exception('Invalid string kind');
}
protected function pScalar_Encapsed(ScalarEncapsed $node) {
if ($node->getAttribute('kind') === ScalarString_::KIND_HEREDOC) {
$label = $node->getAttribute('docLabel');
if ($label && !$this->encapsedContainsEndLabel($node->parts, $label)) {
if (count($node->parts) === 1
&& $node->parts[0] instanceof ScalarEncapsedStringPart
&& $node->parts[0]->value === ''
) {
return "<<<$labeln$label" . $this->docStringEndToken;
}
return "<<<$labeln" . $this->pEncapsList($node->parts, null) . "n$label"
. $this->docStringEndToken;
}
}
return '"' . $this->pEncapsList($node->parts, '"') . '"';
}
protected function pScalar_LNumber(ScalarLNumber $node) {
if ($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', ScalarLNumber::KIND_DEC);
if (ScalarLNumber::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 ScalarLNumber::KIND_BIN:
return $sign . '0b' . base_convert($str, 10, 2);
case ScalarLNumber::KIND_OCT:
return $sign . '0' . base_convert($str, 10, 8);
case ScalarLNumber::KIND_HEX:
return $sign . '0x' . base_convert($str, 10, 16);
}
throw new Exception('Invalid number kind');
}
protected function pScalar_DNumber(ScalarDNumber $node) {
if (!is_finite($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(ScalarEncapsedStringPart $node) {
throw new LogicException('Cannot directly print EncapsedStringPart');
}
// Assignments
protected function pExpr_Assign(ExprAssign $node) {
return $this->pInfixOp(ExprAssign::class, $node->var, ' = ', $node->expr);
}
protected function pExpr_AssignRef(ExprAssignRef $node) {
return $this->pInfixOp(ExprAssignRef::class, $node->var, ' =& ', $node->expr);
}
protected function pExpr_AssignOp_Plus(AssignOpPlus $node) {
return $this->pInfixOp(AssignOpPlus::class, $node->var, ' += ', $node->expr);
}
protected function pExpr_AssignOp_Minus(AssignOpMinus $node) {
return $this->pInfixOp(AssignOpMinus::class, $node->var, ' -= ', $node->expr);
}
protected function pExpr_AssignOp_Mul(AssignOpMul $node) {
return $this->pInfixOp(AssignOpMul::class, $node->var, ' *= ', $node->expr);
}
protected function pExpr_AssignOp_Div(AssignOpDiv $node) {
return $this->pInfixOp(AssignOpDiv::class, $node->var, ' /= ', $node->expr);
}
protected function pExpr_AssignOp_Concat(AssignOpConcat $node) {
return $this->pInfixOp(AssignOpConcat::class, $node->var, ' .= ', $node->expr);
}
protected function pExpr_AssignOp_Mod(AssignOpMod $node) {
return $this->pInfixOp(AssignOpMod::class, $node->var, ' %= ', $node->expr);
}
protected function pExpr_AssignOp_BitwiseAnd(AssignOpBitwiseAnd $node) {
return $this->pInfixOp(AssignOpBitwiseAnd::class, $node->var, ' &= ', $node->expr);
}
protected function pExpr_AssignOp_BitwiseOr(AssignOpBitwiseOr $node) {
return $this->pInfixOp(AssignOpBitwiseOr::class, $node->var, ' |= ', $node->expr);
}
protected function pExpr_AssignOp_BitwiseXor(AssignOpBitwiseXor $node) {
return $this->pInfixOp(AssignOpBitwiseXor::class, $node->var, ' ^= ', $node->expr);
}
protected function pExpr_AssignOp_ShiftLeft(AssignOpShiftLeft $node) {
return $this->pInfixOp(AssignOpShiftLeft::class, $node->var, ' <<= ', $node->expr);
}
protected function pExpr_AssignOp_ShiftRight(AssignOpShiftRight $node) {
return $this->pInfixOp(AssignOpShiftRight::class, $node->var, ' >>= ', $node->expr);
}
protected function pExpr_AssignOp_Pow(AssignOpPow $node) {
return $this->pInfixOp(AssignOpPow::class, $node->var, ' **= ', $node->expr);
}
protected function pExpr_AssignOp_Coalesce(AssignOpCoalesce $node) {
return $this->pInfixOp(AssignOpCoalesce::class, $node->var, ' ??= ', $node->expr);
}
// Binary expressions
protected function pExpr_BinaryOp_Plus(BinaryOpPlus $node) {
return $this->pInfixOp(BinaryOpPlus::class, $node->left, ' + ', $node->right);
}
protected function pExpr_BinaryOp_Minus(BinaryOpMinus $node) {
return $this->pInfixOp(BinaryOpMinus::class, $node->left, ' - ', $node->right);
}
protected function pExpr_BinaryOp_Mul(BinaryOpMul $node) {
return $this->pInfixOp(BinaryOpMul::class, $node->left, ' * ', $node->right);
}
protected function pExpr_BinaryOp_Div(BinaryOpDiv $node) {
return $this->pInfixOp(BinaryOpDiv::class, $node->left, ' / ', $node->right);
}
protected function pExpr_BinaryOp_Concat(BinaryOpConcat $node) {
return $this->pInfixOp(BinaryOpConcat::class, $node->left, ' . ', $node->right);
}
protected function pExpr_BinaryOp_Mod(BinaryOpMod $node) {
return $this->pInfixOp(BinaryOpMod::class, $node->left, ' % ', $node->right);
}
protected function pExpr_BinaryOp_BooleanAnd(BinaryOpBooleanAnd $node) {
return $this->pInfixOp(BinaryOpBooleanAnd::class, $node->left, ' && ', $node->right);
}
protected function pExpr_BinaryOp_BooleanOr(BinaryOpBooleanOr $node) {
return $this->pInfixOp(BinaryOpBooleanOr::class, $node->left, ' || ', $node->right);
}
protected function pExpr_BinaryOp_BitwiseAnd(BinaryOpBitwiseAnd $node) {
return $this->pInfixOp(BinaryOpBitwiseAnd::class, $node->left, ' & ', $node->right);
}
protected function pExpr_BinaryOp_BitwiseOr(BinaryOpBitwiseOr $node) {
return $this->pInfixOp(BinaryOpBitwiseOr::class, $node->left, ' | ', $node->right);
}
protected function pExpr_BinaryOp_BitwiseXor(BinaryOpBitwiseXor $node) {
return $this->pInfixOp(BinaryOpBitwiseXor::class, $node->left, ' ^ ', $node->right);
}
protected function pExpr_BinaryOp_ShiftLeft(BinaryOpShiftLeft $node) {
return $this->pInfixOp(BinaryOpShiftLeft::class, $node->left, ' << ', $node->right);
}
protected function pExpr_BinaryOp_ShiftRight(BinaryOpShiftRight $node) {
return $this->pInfixOp(BinaryOpShiftRight::class, $node->left, ' >> ', $node->right);
}
protected function pExpr_BinaryOp_Pow(BinaryOpPow $node) {
return $this->pInfixOp(BinaryOpPow::class, $node->left, ' ** ', $node->right);
}
protected function pExpr_BinaryOp_LogicalAnd(BinaryOpLogicalAnd $node) {
return $this->pInfixOp(BinaryOpLogicalAnd::class, $node->left, ' and ', $node->right);
}
protected function pExpr_BinaryOp_LogicalOr(BinaryOpLogicalOr $node) {
return $this->pInfixOp(BinaryOpLogicalOr::class, $node->left, ' or ', $node->right);
}
protected function pExpr_BinaryOp_LogicalXor(BinaryOpLogicalXor $node) {
return $this->pInfixOp(BinaryOpLogicalXor::class, $node->left, ' xor ', $node->right);
}
protected function pExpr_BinaryOp_Equal(BinaryOpEqual $node) {
return $this->pInfixOp(BinaryOpEqual::class, $node->left, ' == ', $node->right);
}
protected function pExpr_BinaryOp_NotEqual(BinaryOpNotEqual $node) {
return $this->pInfixOp(BinaryOpNotEqual::class, $node->left, ' != ', $node->right);
}
protected function pExpr_BinaryOp_Identical(BinaryOpIdentical $node) {
return $this->pInfixOp(BinaryOpIdentical::class, $node->left, ' === ', $node->right);
}
protected function pExpr_BinaryOp_NotIdentical(BinaryOpNotIdentical $node) {
return $this->pInfixOp(BinaryOpNotIdentical::class, $node->left, ' !== ', $node->right);
}
protected function pExpr_BinaryOp_Spaceship(BinaryOpSpaceship $node) {
return $this->pInfixOp(BinaryOpSpaceship::class, $node->left, ' <=> ', $node->right);
}
protected function pExpr_BinaryOp_Greater(BinaryOpGreater $node) {
return $this->pInfixOp(BinaryOpGreater::class, $node->left, ' > ', $node->right);
}
protected function pExpr_BinaryOp_GreaterOrEqual(BinaryOpGreaterOrEqual $node) {
return $this->pInfixOp(BinaryOpGreaterOrEqual::class, $node->left, ' >= ', $node->right);
}
protected function pExpr_BinaryOp_Smaller(BinaryOpSmaller $node) {
return $this->pInfixOp(BinaryOpSmaller::class, $node->left, ' < ', $node->right);
}
protected function pExpr_BinaryOp_SmallerOrEqual(BinaryOpSmallerOrEqual $node) {
return $this->pInfixOp(BinaryOpSmallerOrEqual::class, $node->left, ' <= ', $node->right);
}
protected function pExpr_BinaryOp_Coalesce(BinaryOpCoalesce $node) {
return $this->pInfixOp(BinaryOpCoalesce::class, $node->left, ' ?? ', $node->right);
}
protected function pExpr_Instanceof(ExprInstanceof_ $node) {
list($precedence, $associativity) = $this->precedenceMap[ExprInstanceof_::class];
return $this->pPrec($node->expr, $precedence, $associativity, -1)
. ' instanceof '
. $this->pNewVariable($node->class);
}
// Unary expressions
protected function pExpr_BooleanNot(ExprBooleanNot $node) {
return $this->pPrefixOp(ExprBooleanNot::class, '!', $node->expr);
}
protected function pExpr_BitwiseNot(ExprBitwiseNot $node) {
return $this->pPrefixOp(ExprBitwiseNot::class, '~', $node->expr);
}
protected function pExpr_UnaryMinus(ExprUnaryMinus $node) {
if ($node->expr instanceof ExprUnaryMinus || $node->expr instanceof ExprPreDec) {
// Enforce -(-$expr) instead of --$expr
return '-(' . $this->p($node->expr) . ')';
}
return $this->pPrefixOp(ExprUnaryMinus::class, '-', $node->expr);
}
protected function pExpr_UnaryPlus(ExprUnaryPlus $node) {
if ($node->expr instanceof ExprUnaryPlus || $node->expr instanceof ExprPreInc) {
// Enforce +(+$expr) instead of ++$expr
return '+(' . $this->p($node->expr) . ')';
}
return $this->pPrefixOp(ExprUnaryPlus::class, '+', $node->expr);
}
protected function pExpr_PreInc(ExprPreInc $node) {
return $this->pPrefixOp(ExprPreInc::class, '++', $node->var);
}
protected function pExpr_PreDec(ExprPreDec $node) {
return $this->pPrefixOp(ExprPreDec::class, '--', $node->var);
}
protected function pExpr_PostInc(ExprPostInc $node) {
return $this->pPostfixOp(ExprPostInc::class, $node->var, '++');
}
protected function pExpr_PostDec(ExprPostDec $node) {
return $this->pPostfixOp(ExprPostDec::class, $node->var, '--');
}
protected function pExpr_ErrorSuppress(ExprErrorSuppress $node) {
return $this->pPrefixOp(ExprErrorSuppress::class, '@', $node->expr);
}
protected function pExpr_YieldFrom(ExprYieldFrom $node) {
return $this->pPrefixOp(ExprYieldFrom::class, 'yield from ', $node->expr);
}
protected function pExpr_Print(ExprPrint_ $node) {
return $this->pPrefixOp(ExprPrint_::class, 'print ', $node->expr);
}
// Casts
protected function pExpr_Cast_Int(CastInt_ $node) {
return $this->pPrefixOp(CastInt_::class, '(int) ', $node->expr);
}
protected function pExpr_Cast_Double(CastDouble $node) {
$kind = $node->getAttribute('kind', CastDouble::KIND_DOUBLE);
if ($kind === CastDouble::KIND_DOUBLE) {
$cast = '(double)';
} elseif ($kind === CastDouble::KIND_FLOAT) {
$cast = '(float)';
} elseif ($kind === CastDouble::KIND_REAL) {
$cast = '(real)';
}
return $this->pPrefixOp(CastDouble::class, $cast . ' ', $node->expr);
}
protected function pExpr_Cast_String(CastString_ $node) {
return $this->pPrefixOp(CastString_::class, '(string) ', $node->expr);
}
protected function pExpr_Cast_Array(CastArray_ $node) {
return $this->pPrefixOp(CastArray_::class, '(array) ', $node->expr);
}
protected function pExpr_Cast_Object(CastObject_ $node) {
return $this->pPrefixOp(CastObject_::class, '(object) ', $node->expr);
}
protected function pExpr_Cast_Bool(CastBool_ $node) {
return $this->pPrefixOp(CastBool_::class, '(bool) ', $node->expr);
}
protected function pExpr_Cast_Unset(CastUnset_ $node) {
return $this->pPrefixOp(CastUnset_::class, '(unset) ', $node->expr);
}
// Function calls and similar constructs
protected function pExpr_FuncCall(ExprFuncCall $node) {
return $this->pCallLhs($node->name)
. '(' . $this->pMaybeMultiline($node->args) . ')';
}
protected function pExpr_MethodCall(ExprMethodCall $node) {
return $this->pDereferenceLhs($node->var) . '->' . $this->pObjectProperty($node->name)
. '(' . $this->pMaybeMultiline($node->args) . ')';
}
protected function pExpr_NullsafeMethodCall(ExprNullsafeMethodCall $node) {
return $this->pDereferenceLhs($node->var) . '?->' . $this->pObjectProperty($node->name)
. '(' . $this->pMaybeMultiline($node->args) . ')';
}
protected function pExpr_StaticCall(ExprStaticCall $node) {
return $this->pDereferenceLhs($node->class) . '::'
. ($node->name instanceof Expr
? ($node->name instanceof ExprVariable
? $this->p($node->name)
: '{' . $this->p($node->name) . '}')
: $node->name)
. '(' . $this->pMaybeMultiline($node->args) . ')';
}
protected function pExpr_Empty(ExprEmpty_ $node) {
return 'empty(' . $this->p($node->expr) . ')';
}
protected function pExpr_Isset(ExprIsset_ $node) {
return 'isset(' . $this->pCommaSeparated($node->vars) . ')';
}
protected function pExpr_Eval(ExprEval_ $node) {
return 'eval(' . $this->p($node->expr) . ')';
}
protected function pExpr_Include(ExprInclude_ $node) {
static $map = [
ExprInclude_::TYPE_INCLUDE => 'include',
ExprInclude_::TYPE_INCLUDE_ONCE => 'include_once',
ExprInclude_::TYPE_REQUIRE => 'require',
ExprInclude_::TYPE_REQUIRE_ONCE => 'require_once',
];
return $map[$node->type] . ' ' . $this->p($node->expr);
}
protected function pExpr_List(ExprList_ $node) {
return 'list(' . $this->pCommaSeparated($node->items) . ')';
}
// Other
protected function pExpr_Error(ExprError $node) {
throw new LogicException('Cannot pretty-print AST with Error nodes');
}
protected function pExpr_Variable(ExprVariable $node) {
if ($node->name instanceof Expr) {
return '${' . $this->p($node->name) . '}';
} else {
return '$' . $node->name;
}
}
protected function pExpr_Array(ExprArray_ $node) {
$syntax = $node->getAttribute('kind',
$this->options['shortArraySyntax'] ? ExprArray_::KIND_SHORT : ExprArray_::KIND_LONG);
if ($syntax === ExprArray_::KIND_SHORT) {
return '[' . $this->pMaybeMultiline($node->items, true) . ']';
} else {
return 'array(' . $this->pMaybeMultiline($node->items, true) . ')';
}
}
protected function pExpr_ArrayItem(ExprArrayItem $node) {
return (null !== $node->key ? $this->p($node->key) . ' => ' : '')
. ($node->byRef ? '&' : '')
. ($node->unpack ? '...' : '')
. $this->p($node->value);
}
protected function pExpr_ArrayDimFetch(ExprArrayDimFetch $node) {
return $this->pDereferenceLhs($node->var)
. '[' . (null !== $node->dim ? $this->p($node->dim) : '') . ']';
}
protected function pExpr_ConstFetch(ExprConstFetch $node) {
return $this->p($node->name);
}
protected function pExpr_ClassConstFetch(ExprClassConstFetch $node) {
return $this->pDereferenceLhs($node->class) . '::' . $this->p($node->name);
}
protected function pExpr_PropertyFetch(ExprPropertyFetch $node) {
return $this->pDereferenceLhs($node->var) . '->' . $this->pObjectProperty($node->name);
}
protected function pExpr_NullsafePropertyFetch(ExprNullsafePropertyFetch $node) {
return $this->pDereferenceLhs($node->var) . '?->' . $this->pObjectProperty($node->name);
}
protected function pExpr_StaticPropertyFetch(ExprStaticPropertyFetch $node) {
return $this->pDereferenceLhs($node->class) . '::$' . $this->pObjectProperty($node->name);
}
protected function pExpr_ShellExec(ExprShellExec $node) {
return '`' . $this->pEncapsList($node->parts, '`') . '`';
}
protected function pExpr_Closure(ExprClosure $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(ExprMatch_ $node) {
return 'match (' . $this->p($node->cond) . ') {'
. $this->pCommaSeparatedMultiline($node->arms, true)
. $this->nl
. '}';
}
protected function pMatchArm(NodeMatchArm $node) {
return ($node->conds ? $this->pCommaSeparated($node->conds) : 'default')
. ' => ' . $this->p($node->body);
}
protected function pExpr_ArrowFunction(ExprArrowFunction $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(ExprClosureUse $node) {
return ($node->byRef ? '&' : '') . $this->p($node->var);
}
protected function pExpr_New(ExprNew_ $node) {
if ($node->class instanceof StmtClass_) {
$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(ExprClone_ $node) {
return 'clone ' . $this->p($node->expr);
}
protected function pExpr_Ternary(ExprTernary $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(ExprTernary::class,
$node->cond, ' ?' . (null !== $node->if ? ' ' . $this->p($node->if) . ' ' : '') . ': ', $node->else
);
}
protected function pExpr_Exit(ExprExit_ $node) {
$kind = $node->getAttribute('kind', ExprExit_::KIND_DIE);
return ($kind === ExprExit_::KIND_EXIT ? 'exit' : 'die')
. (null !== $node->expr ? '(' . $this->p($node->expr) . ')' : '');
}
protected function pExpr_Throw(ExprThrow_ $node) {
return 'throw ' . $this->p($node->expr);
}
protected function pExpr_Yield(ExprYield_ $node) {
if ($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(StmtNamespace_ $node) {
if ($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(StmtUse_ $node) {
return 'use ' . $this->pUseType($node->type)
. $this->pCommaSeparated($node->uses) . ';';
}
protected function pStmt_GroupUse(StmtGroupUse $node) {
return 'use ' . $this->pUseType($node->type) . $this->pName($node->prefix)
. '{' . $this->pCommaSeparated($node->uses) . '};';
}
protected function pStmt_UseUse(StmtUseUse $node) {
return $this->pUseType($node->type) . $this->p($node->name)
. (null !== $node->alias ? ' as ' . $node->alias : '');
}
protected function pUseType($type) {
return $type === StmtUse_::TYPE_FUNCTION ? 'function '
: ($type === StmtUse_::TYPE_CONSTANT ? 'const ' : '');
}
protected function pStmt_Interface(StmtInterface_ $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(StmtEnum_ $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(StmtClass_ $node) {
return $this->pClassCommon($node, ' ' . $node->name);
}
protected function pStmt_Trait(StmtTrait_ $node) {
return $this->pAttrGroups($node->attrGroups)
. 'trait ' . $node->name
. $this->nl . '{' . $this->pStmts($node->stmts) . $this->nl . '}';
}
protected function pStmt_EnumCase(StmtEnumCase $node) {
return $this->pAttrGroups($node->attrGroups)
. 'case ' . $node->name
. ($node->expr ? ' = ' . $this->p($node->expr) : '')
. ';';
}
protected function pStmt_TraitUse(StmtTraitUse $node) {
return 'use ' . $this->pCommaSeparated($node->traits)
. (empty($node->adaptations)
? ';'
: ' {' . $this->pStmts($node->adaptations) . $this->nl . '}');
}
protected function pStmt_TraitUseAdaptation_Precedence(StmtTraitUseAdaptationPrecedence $node) {
return $this->p($node->trait) . '::' . $node->method
. ' insteadof ' . $this->pCommaSeparated($node->insteadof) . ';';
}
protected function pStmt_TraitUseAdaptation_Alias(StmtTraitUseAdaptationAlias $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(StmtProperty $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(StmtPropertyProperty $node) {
return '$' . $node->name
. (null !== $node->default ? ' = ' . $this->p($node->default) : '');
}
protected function pStmt_ClassMethod(StmtClassMethod $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(StmtClassConst $node) {
return $this->pAttrGroups($node->attrGroups)
. $this->pModifiers($node->flags)
. 'const ' . $this->pCommaSeparated($node->consts) . ';';
}
protected function pStmt_Function(StmtFunction_ $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(StmtConst_ $node) {
return 'const ' . $this->pCommaSeparated($node->consts) . ';';
}
protected function pStmt_Declare(StmtDeclare_ $node) {
return 'declare (' . $this->pCommaSeparated($node->declares) . ')'
. (null !== $node->stmts ? ' {' . $this->pStmts($node->stmts) . $this->nl . '}' : ';');
}
protected function pStmt_DeclareDeclare(StmtDeclareDeclare $node) {
return $node->key . '=' . $this->p($node->value);
}
// Control flow
protected function pStmt_If(StmtIf_ $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(StmtElseIf_ $node) {
return 'elseif (' . $this->p($node->cond) . ') {'
. $this->pStmts($node->stmts) . $this->nl . '}';
}
protected function pStmt_Else(StmtElse_ $node) {
return 'else {' . $this->pStmts($node->stmts) . $this->nl . '}';
}
protected function pStmt_For(StmtFor_ $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(StmtForeach_ $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(StmtWhile_ $node) {
return 'while (' . $this->p($node->cond) . ') {'
. $this->pStmts($node->stmts) . $this->nl . '}';
}
protected function pStmt_Do(StmtDo_ $node) {
return 'do {' . $this->pStmts($node->stmts) . $this->nl
. '} while (' . $this->p($node->cond) . ');';
}
protected function pStmt_Switch(StmtSwitch_ $node) {
return 'switch (' . $this->p($node->cond) . ') {'
. $this->pStmts($node->cases) . $this->nl . '}';
}
protected function pStmt_Case(StmtCase_ $node) {
return (null !== $node->cond ? 'case ' . $this->p($node->cond) : 'default') . ':'
. $this->pStmts($node->stmts);
}
protected function pStmt_TryCatch(StmtTryCatch $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(StmtCatch_ $node) {
return 'catch (' . $this->pImplode($node->types, '|')
. ($node->var !== null ? ' ' . $this->p($node->var) : '')
. ') {' . $this->pStmts($node->stmts) . $this->nl . '}';
}
protected function pStmt_Finally(StmtFinally_ $node) {
return 'finally {' . $this->pStmts($node->stmts) . $this->nl . '}';
}
protected function pStmt_Break(StmtBreak_ $node) {
return 'break' . ($node->num !== null ? ' ' . $this->p($node->num) : '') . ';';
}
protected function pStmt_Continue(StmtContinue_ $node) {
return 'continue' . ($node->num !== null ? ' ' . $this->p($node->num) : '') . ';';
}
protected function pStmt_Return(StmtReturn_ $node) {
return 'return' . (null !== $node->expr ? ' ' . $this->p($node->expr) : '') . ';';
}
protected function pStmt_Throw(StmtThrow_ $node) {
return 'throw ' . $this->p($node->expr) . ';';
}
protected function pStmt_Label(StmtLabel $node) {
return $node->name . ':';
}
protected function pStmt_Goto(StmtGoto_ $node) {
return 'goto ' . $node->name . ';';
}
// Other
protected function pStmt_Expression(StmtExpression $node) {
return $this->p($node->expr) . ';';
}
protected function pStmt_Echo(StmtEcho_ $node) {
return 'echo ' . $this->pCommaSeparated($node->exprs) . ';';
}
protected function pStmt_Static(StmtStatic_ $node) {
return 'static ' . $this->pCommaSeparated($node->vars) . ';';
}
protected function pStmt_Global(StmtGlobal_ $node) {
return 'global ' . $this->pCommaSeparated($node->vars) . ';';
}
protected function pStmt_StaticVar(StmtStaticVar $node) {
return $this->p($node->var)
. (null !== $node->default ? ' = ' . $this->p($node->default) : '');
}
protected function pStmt_Unset(StmtUnset_ $node) {
return 'unset(' . $this->pCommaSeparated($node->vars) . ');';
}
protected function pStmt_InlineHTML(StmtInlineHTML $node) {
$newline = $node->getAttribute('hasLeadingNewline', true) ? "n" : '';
return '?>' . $newline . $node->value . '<?php ';
}
protected function pStmt_HaltCompiler(StmtHaltCompiler $node) {
return '__halt_compiler();' . $node->remaining;
}
protected function pStmt_Nop(StmtNop $node) {
return '';
}
// Helpers
protected function pClassCommon(StmtClass_ $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 ScalarEncapsedStringPart) {
$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, "tfv$\");
} else {
$escaped = addcslashes($string, "nrtfv$" . $quote . "\");
}
// Escape control characters and non-UTF-8 characters.
// Regex based on https://stackoverflow.com/a/11709412/385378.
$regex = '/(
[x00-x08x0E-x1F] # Control characters
| [xC0-xC1] # Invalid UTF-8 Bytes
| [xF5-xFF] # Invalid UTF-8 Bytes
| xE0(?=[x80-x9F]) # Overlong encoding of prior code point
| xF0(?=[x80-x8F]) # Overlong encoding of prior code point
| [xC2-xDF](?![x80-xBF]) # Invalid UTF-8 Sequence Start
| [xE0-xEF](?![x80-xBF]{2}) # Invalid UTF-8 Sequence Start
| [xF0-xF4](?![x80-xBF]{3}) # Invalid UTF-8 Sequence Start
| (?<=[x00-x7FxF5-xFF])[x80-xBF] # Invalid UTF-8 Sequence Middle
| (?<![xC2-xDF]|[xE0-xEF]|[xE0-xEF][x80-xBF]|[xF0-xF4]|[xF0-xF4][x80-xBF]|[xF0-xF4][x80-xBF]{2})[x80-xBF] # Overlong Sequence
| (?<=[xE0-xEF])[x80-xBF](?![x80-xBF]) # Short 3 byte sequence
| (?<=[xF0-xF4])[x80-xBF](?![x80-xBF]{2}) # Short 4 byte sequence
| (?<=[xF0-xF4][x80-xBF])[x80-xBF](?![x80-xBF]) # Short 4 byte sequence (2)
)/x';
return preg_replace_callback($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 ? '(?:^|[rn])' : '[rn]';
$end = $atEnd ? '(?:$|[;rn])' : '[;rn]';
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 ScalarEncapsedStringPart
&& $this->containsEndLabel($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;
}
}