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Direktori : /home2/selectio/www/a1tex.in/vendor/nikic/php-parser/lib/PhpParser/ |
Current File : /home2/selectio/www/a1tex.in/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinterAbstract.php |
<?php declare(strict_types=1); namespace PhpParser; use PhpParser\Internal\DiffElem; use PhpParser\Internal\PrintableNewAnonClassNode; use PhpParser\Internal\TokenStream; use PhpParser\Node\Expr; use PhpParser\Node\Expr\AssignOp; use PhpParser\Node\Expr\BinaryOp; use PhpParser\Node\Expr\Cast; use PhpParser\Node\Scalar; use PhpParser\Node\Stmt; abstract class PrettyPrinterAbstract { const FIXUP_PREC_LEFT = 0; // LHS operand affected by precedence const FIXUP_PREC_RIGHT = 1; // RHS operand affected by precedence const FIXUP_CALL_LHS = 2; // LHS of call const FIXUP_DEREF_LHS = 3; // LHS of dereferencing operation const FIXUP_BRACED_NAME = 4; // Name operand that may require bracing const FIXUP_VAR_BRACED_NAME = 5; // Name operand that may require ${} bracing const FIXUP_ENCAPSED = 6; // Encapsed string part protected $precedenceMap = [ // [precedence, associativity] // where for precedence -1 is %left, 0 is %nonassoc and 1 is %right BinaryOp\Pow::class => [ 0, 1], Expr\BitwiseNot::class => [ 10, 1], Expr\PreInc::class => [ 10, 1], Expr\PreDec::class => [ 10, 1], Expr\PostInc::class => [ 10, -1], Expr\PostDec::class => [ 10, -1], Expr\UnaryPlus::class => [ 10, 1], Expr\UnaryMinus::class => [ 10, 1], Cast\Int_::class => [ 10, 1], Cast\Double::class => [ 10, 1], Cast\String_::class => [ 10, 1], Cast\Array_::class => [ 10, 1], Cast\Object_::class => [ 10, 1], Cast\Bool_::class => [ 10, 1], Cast\Unset_::class => [ 10, 1], Expr\ErrorSuppress::class => [ 10, 1], Expr\Instanceof_::class => [ 20, 0], Expr\BooleanNot::class => [ 30, 1], BinaryOp\Mul::class => [ 40, -1], BinaryOp\Div::class => [ 40, -1], BinaryOp\Mod::class => [ 40, -1], BinaryOp\Plus::class => [ 50, -1], BinaryOp\Minus::class => [ 50, -1], BinaryOp\Concat::class => [ 50, -1], BinaryOp\ShiftLeft::class => [ 60, -1], BinaryOp\ShiftRight::class => [ 60, -1], BinaryOp\Smaller::class => [ 70, 0], BinaryOp\SmallerOrEqual::class => [ 70, 0], BinaryOp\Greater::class => [ 70, 0], BinaryOp\GreaterOrEqual::class => [ 70, 0], BinaryOp\Equal::class => [ 80, 0], BinaryOp\NotEqual::class => [ 80, 0], BinaryOp\Identical::class => [ 80, 0], BinaryOp\NotIdentical::class => [ 80, 0], BinaryOp\Spaceship::class => [ 80, 0], BinaryOp\BitwiseAnd::class => [ 90, -1], BinaryOp\BitwiseXor::class => [100, -1], BinaryOp\BitwiseOr::class => [110, -1], BinaryOp\BooleanAnd::class => [120, -1], BinaryOp\BooleanOr::class => [130, -1], BinaryOp\Coalesce::class => [140, 1], Expr\Ternary::class => [150, 0], // parser uses %left for assignments, but they really behave as %right Expr\Assign::class => [160, 1], Expr\AssignRef::class => [160, 1], AssignOp\Plus::class => [160, 1], AssignOp\Minus::class => [160, 1], AssignOp\Mul::class => [160, 1], AssignOp\Div::class => [160, 1], AssignOp\Concat::class => [160, 1], AssignOp\Mod::class => [160, 1], AssignOp\BitwiseAnd::class => [160, 1], AssignOp\BitwiseOr::class => [160, 1], AssignOp\BitwiseXor::class => [160, 1], AssignOp\ShiftLeft::class => [160, 1], AssignOp\ShiftRight::class => [160, 1], AssignOp\Pow::class => [160, 1], AssignOp\Coalesce::class => [160, 1], Expr\YieldFrom::class => [165, 1], Expr\Print_::class => [168, 1], BinaryOp\LogicalAnd::class => [170, -1], BinaryOp\LogicalXor::class => [180, -1], BinaryOp\LogicalOr::class => [190, -1], Expr\Include_::class => [200, -1], ]; /** @var int Current indentation level. */ protected $indentLevel; /** @var string Newline including current indentation. */ protected $nl; /** @var string Token placed at end of doc string to ensure it is followed by a newline. */ protected $docStringEndToken; /** @var bool Whether semicolon namespaces can be used (i.e. no global namespace is used) */ protected $canUseSemicolonNamespaces; /** @var array Pretty printer options */ protected $options; /** @var TokenStream Original tokens for use in format-preserving pretty print */ protected $origTokens; /** @var Internal\Differ Differ for node lists */ protected $nodeListDiffer; /** @var bool[] Map determining whether a certain character is a label character */ protected $labelCharMap; /** * @var int[][] Map from token classes and subnode names to FIXUP_* constants. This is used * during format-preserving prints to place additional parens/braces if necessary. */ protected $fixupMap; /** * @var int[][] Map from "{$node->getType()}->{$subNode}" to ['left' => $l, 'right' => $r], * where $l and $r specify the token type that needs to be stripped when removing * this node. */ protected $removalMap; /** * @var mixed[] Map from "{$node->getType()}->{$subNode}" to [$find, $beforeToken, $extraLeft, $extraRight]. * $find is an optional token after which the insertion occurs. $extraLeft/Right * are optionally added before/after the main insertions. */ protected $insertionMap; /** * @var string[] Map From "{$node->getType()}->{$subNode}" to string that should be inserted * between elements of this list subnode. */ protected $listInsertionMap; protected $emptyListInsertionMap; /** @var int[] Map from "{$node->getType()}->{$subNode}" to token before which the modifiers * should be reprinted. */ protected $modifierChangeMap; /** * Creates a pretty printer instance using the given options. * * Supported options: * * bool $shortArraySyntax = false: Whether to use [] instead of array() as the default array * syntax, if the node does not specify a format. * * @param array $options Dictionary of formatting options */ public function __construct(array $options = []) { $this->docStringEndToken = '_DOC_STRING_END_' . mt_rand(); $defaultOptions = ['shortArraySyntax' => false]; $this->options = $options + $defaultOptions; } /** * Reset pretty printing state. */ protected function resetState() { $this->indentLevel = 0; $this->nl = "\n"; $this->origTokens = null; } /** * Set indentation level * * @param int $level Level in number of spaces */ protected function setIndentLevel(int $level) { $this->indentLevel = $level; $this->nl = "\n" . \str_repeat(' ', $level); } /** * Increase indentation level. */ protected function indent() { $this->indentLevel += 4; $this->nl .= ' '; } /** * Decrease indentation level. */ protected function outdent() { assert($this->indentLevel >= 4); $this->indentLevel -= 4; $this->nl = "\n" . str_repeat(' ', $this->indentLevel); } /** * Pretty prints an array of statements. * * @param Node[] $stmts Array of statements * * @return string Pretty printed statements */ public function prettyPrint(array $stmts) : string { $this->resetState(); $this->preprocessNodes($stmts); return ltrim($this->handleMagicTokens($this->pStmts($stmts, false))); } /** * Pretty prints an expression. * * @param Expr $node Expression node * * @return string Pretty printed node */ public function prettyPrintExpr(Expr $node) : string { $this->resetState(); return $this->handleMagicTokens($this->p($node)); } /** * Pretty prints a file of statements (includes the opening <?php tag if it is required). * * @param Node[] $stmts Array of statements * * @return string Pretty printed statements */ public function prettyPrintFile(array $stmts) : string { if (!$stmts) { return "<?php\n\n"; } $p = "<?php\n\n" . $this->prettyPrint($stmts); if ($stmts[0] instanceof Stmt\InlineHTML) { $p = preg_replace('/^<\?php\s+\?>\n?/', '', $p); } if ($stmts[count($stmts) - 1] instanceof Stmt\InlineHTML) { $p = preg_replace('/<\?php$/', '', rtrim($p)); } return $p; } /** * Preprocesses the top-level nodes to initialize pretty printer state. * * @param Node[] $nodes Array of nodes */ protected function preprocessNodes(array $nodes) { /* We can use semicolon-namespaces unless there is a global namespace declaration */ $this->canUseSemicolonNamespaces = true; foreach ($nodes as $node) { if ($node instanceof Stmt\Namespace_ && null === $node->name) { $this->canUseSemicolonNamespaces = false; break; } } } /** * Handles (and removes) no-indent and doc-string-end tokens. * * @param string $str * @return string */ protected function handleMagicTokens(string $str) : string { // Replace doc-string-end tokens with nothing or a newline $str = str_replace($this->docStringEndToken . ";\n", ";\n", $str); $str = str_replace($this->docStringEndToken, "\n", $str); return $str; } /** * Pretty prints an array of nodes (statements) and indents them optionally. * * @param Node[] $nodes Array of nodes * @param bool $indent Whether to indent the printed nodes * * @return string Pretty printed statements */ protected function pStmts(array $nodes, bool $indent = true) : string { if ($indent) { $this->indent(); } $result = ''; foreach ($nodes as $node) { $comments = $node->getComments(); if ($comments) { $result .= $this->nl . $this->pComments($comments); if ($node instanceof Stmt\Nop) { continue; } } $result .= $this->nl . $this->p($node); } if ($indent) { $this->outdent(); } return $result; } /** * Pretty-print an infix operation while taking precedence into account. * * @param string $class Node class of operator * @param Node $leftNode Left-hand side node * @param string $operatorString String representation of the operator * @param Node $rightNode Right-hand side node * * @return string Pretty printed infix operation */ protected function pInfixOp(string $class, Node $leftNode, string $operatorString, Node $rightNode) : string { list($precedence, $associativity) = $this->precedenceMap[$class]; return $this->pPrec($leftNode, $precedence, $associativity, -1) . $operatorString . $this->pPrec($rightNode, $precedence, $associativity, 1); } /** * Pretty-print a prefix operation while taking precedence into account. * * @param string $class Node class of operator * @param string $operatorString String representation of the operator * @param Node $node Node * * @return string Pretty printed prefix operation */ protected function pPrefixOp(string $class, string $operatorString, Node $node) : string { list($precedence, $associativity) = $this->precedenceMap[$class]; return $operatorString . $this->pPrec($node, $precedence, $associativity, 1); } /** * Pretty-print a postfix operation while taking precedence into account. * * @param string $class Node class of operator * @param string $operatorString String representation of the operator * @param Node $node Node * * @return string Pretty printed postfix operation */ protected function pPostfixOp(string $class, Node $node, string $operatorString) : string { list($precedence, $associativity) = $this->precedenceMap[$class]; return $this->pPrec($node, $precedence, $associativity, -1) . $operatorString; } /** * Prints an expression node with the least amount of parentheses necessary to preserve the meaning. * * @param Node $node Node to pretty print * @param int $parentPrecedence Precedence of the parent operator * @param int $parentAssociativity Associativity of parent operator * (-1 is left, 0 is nonassoc, 1 is right) * @param int $childPosition Position of the node relative to the operator * (-1 is left, 1 is right) * * @return string The pretty printed node */ protected function pPrec(Node $node, int $parentPrecedence, int $parentAssociativity, int $childPosition) : string { $class = \get_class($node); if (isset($this->precedenceMap[$class])) { $childPrecedence = $this->precedenceMap[$class][0]; if ($childPrecedence > $parentPrecedence || ($parentPrecedence === $childPrecedence && $parentAssociativity !== $childPosition) ) { return '(' . $this->p($node) . ')'; } } return $this->p($node); } /** * Pretty prints an array of nodes and implodes the printed values. * * @param Node[] $nodes Array of Nodes to be printed * @param string $glue Character to implode with * * @return string Imploded pretty printed nodes */ protected function pImplode(array $nodes, string $glue = '') : string { $pNodes = []; foreach ($nodes as $node) { if (null === $node) { $pNodes[] = ''; } else { $pNodes[] = $this->p($node); } } return implode($glue, $pNodes); } /** * Pretty prints an array of nodes and implodes the printed values with commas. * * @param Node[] $nodes Array of Nodes to be printed * * @return string Comma separated pretty printed nodes */ protected function pCommaSeparated(array $nodes) : string { return $this->pImplode($nodes, ', '); } /** * Pretty prints a comma-separated list of nodes in multiline style, including comments. * * The result includes a leading newline and one level of indentation (same as pStmts). * * @param Node[] $nodes Array of Nodes to be printed * @param bool $trailingComma Whether to use a trailing comma * * @return string Comma separated pretty printed nodes in multiline style */ protected function pCommaSeparatedMultiline(array $nodes, bool $trailingComma) : string { $this->indent(); $result = ''; $lastIdx = count($nodes) - 1; foreach ($nodes as $idx => $node) { if ($node !== null) { $comments = $node->getComments(); if ($comments) { $result .= $this->nl . $this->pComments($comments); } $result .= $this->nl . $this->p($node); } else { $result .= $this->nl; } if ($trailingComma || $idx !== $lastIdx) { $result .= ','; } } $this->outdent(); return $result; } /** * Prints reformatted text of the passed comments. * * @param Comment[] $comments List of comments * * @return string Reformatted text of comments */ protected function pComments(array $comments) : string { $formattedComments = []; foreach ($comments as $comment) { $formattedComments[] = str_replace("\n", $this->nl, $comment->getReformattedText()); } return implode($this->nl, $formattedComments); } /** * Perform a format-preserving pretty print of an AST. * * The format preservation is best effort. For some changes to the AST the formatting will not * be preserved (at least not locally). * * In order to use this method a number of prerequisites must be satisfied: * * The startTokenPos and endTokenPos attributes in the lexer must be enabled. * * The CloningVisitor must be run on the AST prior to modification. * * The original tokens must be provided, using the getTokens() method on the lexer. * * @param Node[] $stmts Modified AST with links to original AST * @param Node[] $origStmts Original AST with token offset information * @param array $origTokens Tokens of the original code * * @return string */ public function printFormatPreserving(array $stmts, array $origStmts, array $origTokens) : string { $this->initializeNodeListDiffer(); $this->initializeLabelCharMap(); $this->initializeFixupMap(); $this->initializeRemovalMap(); $this->initializeInsertionMap(); $this->initializeListInsertionMap(); $this->initializeEmptyListInsertionMap(); $this->initializeModifierChangeMap(); $this->resetState(); $this->origTokens = new TokenStream($origTokens); $this->preprocessNodes($stmts); $pos = 0; $result = $this->pArray($stmts, $origStmts, $pos, 0, 'File', 'stmts', null); if (null !== $result) { $result .= $this->origTokens->getTokenCode($pos, count($origTokens), 0); } else { // Fallback // TODO Add <?php properly $result = "<?php\n" . $this->pStmts($stmts, false); } return ltrim($this->handleMagicTokens($result)); } protected function pFallback(Node $node) { return $this->{'p' . $node->getType()}($node); } /** * Pretty prints a node. * * This method also handles formatting preservation for nodes. * * @param Node $node Node to be pretty printed * @param bool $parentFormatPreserved Whether parent node has preserved formatting * * @return string Pretty printed node */ protected function p(Node $node, $parentFormatPreserved = false) : string { // No orig tokens means this is a normal pretty print without preservation of formatting if (!$this->origTokens) { return $this->{'p' . $node->getType()}($node); } /** @var Node $origNode */ $origNode = $node->getAttribute('origNode'); if (null === $origNode) { return $this->pFallback($node); } $class = \get_class($node); \assert($class === \get_class($origNode)); $startPos = $origNode->getStartTokenPos(); $endPos = $origNode->getEndTokenPos(); \assert($startPos >= 0 && $endPos >= 0); $fallbackNode = $node; if ($node instanceof Expr\New_ && $node->class instanceof Stmt\Class_) { // Normalize node structure of anonymous classes $node = PrintableNewAnonClassNode::fromNewNode($node); $origNode = PrintableNewAnonClassNode::fromNewNode($origNode); } // InlineHTML node does not contain closing and opening PHP tags. If the parent formatting // is not preserved, then we need to use the fallback code to make sure the tags are // printed. if ($node instanceof Stmt\InlineHTML && !$parentFormatPreserved) { return $this->pFallback($fallbackNode); } $indentAdjustment = $this->indentLevel - $this->origTokens->getIndentationBefore($startPos); $type = $node->getType(); $fixupInfo = $this->fixupMap[$class] ?? null; $result = ''; $pos = $startPos; foreach ($node->getSubNodeNames() as $subNodeName) { $subNode = $node->$subNodeName; $origSubNode = $origNode->$subNodeName; if ((!$subNode instanceof Node && $subNode !== null) || (!$origSubNode instanceof Node && $origSubNode !== null) ) { if ($subNode === $origSubNode) { // Unchanged, can reuse old code continue; } if (is_array($subNode) && is_array($origSubNode)) { // Array subnode changed, we might be able to reconstruct it $listResult = $this->pArray( $subNode, $origSubNode, $pos, $indentAdjustment, $type, $subNodeName, $fixupInfo[$subNodeName] ?? null ); if (null === $listResult) { return $this->pFallback($fallbackNode); } $result .= $listResult; continue; } if (is_int($subNode) && is_int($origSubNode)) { // Check if this is a modifier change $key = $type . '->' . $subNodeName; if (!isset($this->modifierChangeMap[$key])) { return $this->pFallback($fallbackNode); } $findToken = $this->modifierChangeMap[$key]; $result .= $this->pModifiers($subNode); $pos = $this->origTokens->findRight($pos, $findToken); continue; } // If a non-node, non-array subnode changed, we don't be able to do a partial // reconstructions, as we don't have enough offset information. Pretty print the // whole node instead. return $this->pFallback($fallbackNode); } $extraLeft = ''; $extraRight = ''; if ($origSubNode !== null) { $subStartPos = $origSubNode->getStartTokenPos(); $subEndPos = $origSubNode->getEndTokenPos(); \assert($subStartPos >= 0 && $subEndPos >= 0); } else { if ($subNode === null) { // Both null, nothing to do continue; } // A node has been inserted, check if we have insertion information for it $key = $type . '->' . $subNodeName; if (!isset($this->insertionMap[$key])) { return $this->pFallback($fallbackNode); } list($findToken, $beforeToken, $extraLeft, $extraRight) = $this->insertionMap[$key]; if (null !== $findToken) { $subStartPos = $this->origTokens->findRight($pos, $findToken) + (int) !$beforeToken; } else { $subStartPos = $pos; } if (null === $extraLeft && null !== $extraRight) { // If inserting on the right only, skipping whitespace looks better $subStartPos = $this->origTokens->skipRightWhitespace($subStartPos); } $subEndPos = $subStartPos - 1; } if (null === $subNode) { // A node has been removed, check if we have removal information for it $key = $type . '->' . $subNodeName; if (!isset($this->removalMap[$key])) { return $this->pFallback($fallbackNode); } // Adjust positions to account for additional tokens that must be skipped $removalInfo = $this->removalMap[$key]; if (isset($removalInfo['left'])) { $subStartPos = $this->origTokens->skipLeft($subStartPos - 1, $removalInfo['left']) + 1; } if (isset($removalInfo['right'])) { $subEndPos = $this->origTokens->skipRight($subEndPos + 1, $removalInfo['right']) - 1; } } $result .= $this->origTokens->getTokenCode($pos, $subStartPos, $indentAdjustment); if (null !== $subNode) { $result .= $extraLeft; $origIndentLevel = $this->indentLevel; $this->setIndentLevel($this->origTokens->getIndentationBefore($subStartPos) + $indentAdjustment); // If it's the same node that was previously in this position, it certainly doesn't // need fixup. It's important to check this here, because our fixup checks are more // conservative than strictly necessary. if (isset($fixupInfo[$subNodeName]) && $subNode->getAttribute('origNode') !== $origSubNode ) { $fixup = $fixupInfo[$subNodeName]; $res = $this->pFixup($fixup, $subNode, $class, $subStartPos, $subEndPos); } else { $res = $this->p($subNode, true); } $this->safeAppend($result, $res); $this->setIndentLevel($origIndentLevel); $result .= $extraRight; } $pos = $subEndPos + 1; } $result .= $this->origTokens->getTokenCode($pos, $endPos + 1, $indentAdjustment); return $result; } /** * Perform a format-preserving pretty print of an array. * * @param array $nodes New nodes * @param array $origNodes Original nodes * @param int $pos Current token position (updated by reference) * @param int $indentAdjustment Adjustment for indentation * @param string $parentNodeType Type of the containing node. * @param string $subNodeName Name of array subnode. * @param null|int $fixup Fixup information for array item nodes * * @return null|string Result of pretty print or null if cannot preserve formatting */ protected function pArray( array $nodes, array $origNodes, int &$pos, int $indentAdjustment, string $parentNodeType, string $subNodeName, $fixup ) { $diff = $this->nodeListDiffer->diffWithReplacements($origNodes, $nodes); $mapKey = $parentNodeType . '->' . $subNodeName; $insertStr = $this->listInsertionMap[$mapKey] ?? null; $isStmtList = $subNodeName === 'stmts'; $beforeFirstKeepOrReplace = true; $skipRemovedNode = false; $delayedAdd = []; $lastElemIndentLevel = $this->indentLevel; $insertNewline = false; if ($insertStr === "\n") { $insertStr = ''; $insertNewline = true; } if ($isStmtList && \count($origNodes) === 1 && \count($nodes) !== 1) { $startPos = $origNodes[0]->getStartTokenPos(); $endPos = $origNodes[0]->getEndTokenPos(); \assert($startPos >= 0 && $endPos >= 0); if (!$this->origTokens->haveBraces($startPos, $endPos)) { // This was a single statement without braces, but either additional statements // have been added, or the single statement has been removed. This requires the // addition of braces. For now fall back. // TODO: Try to preserve formatting return null; } } $result = ''; foreach ($diff as $i => $diffElem) { $diffType = $diffElem->type; /** @var Node|null $arrItem */ $arrItem = $diffElem->new; /** @var Node|null $origArrItem */ $origArrItem = $diffElem->old; if ($diffType === DiffElem::TYPE_KEEP || $diffType === DiffElem::TYPE_REPLACE) { $beforeFirstKeepOrReplace = false; if ($origArrItem === null || $arrItem === null) { // We can only handle the case where both are null if ($origArrItem === $arrItem) { continue; } return null; } if (!$arrItem instanceof Node || !$origArrItem instanceof Node) { // We can only deal with nodes. This can occur for Names, which use string arrays. return null; } $itemStartPos = $origArrItem->getStartTokenPos(); $itemEndPos = $origArrItem->getEndTokenPos(); \assert($itemStartPos >= 0 && $itemEndPos >= 0 && $itemStartPos >= $pos); $origIndentLevel = $this->indentLevel; $lastElemIndentLevel = $this->origTokens->getIndentationBefore($itemStartPos) + $indentAdjustment; $this->setIndentLevel($lastElemIndentLevel); $comments = $arrItem->getComments(); $origComments = $origArrItem->getComments(); $commentStartPos = $origComments ? $origComments[0]->getStartTokenPos() : $itemStartPos; \assert($commentStartPos >= 0); if ($commentStartPos < $pos) { // Comments may be assigned to multiple nodes if they start at the same position. // Make sure we don't try to print them multiple times. $commentStartPos = $itemStartPos; } if ($skipRemovedNode) { if ($isStmtList && ($this->origTokens->haveBracesInRange($pos, $itemStartPos) || $this->origTokens->haveTagInRange($pos, $itemStartPos))) { // We'd remove the brace of a code block. // TODO: Preserve formatting. $this->setIndentLevel($origIndentLevel); return null; } } else { $result .= $this->origTokens->getTokenCode( $pos, $commentStartPos, $indentAdjustment); } if (!empty($delayedAdd)) { /** @var Node $delayedAddNode */ foreach ($delayedAdd as $delayedAddNode) { if ($insertNewline) { $delayedAddComments = $delayedAddNode->getComments(); if ($delayedAddComments) { $result .= $this->pComments($delayedAddComments) . $this->nl; } } $this->safeAppend($result, $this->p($delayedAddNode, true)); if ($insertNewline) { $result .= $insertStr . $this->nl; } else { $result .= $insertStr; } } $delayedAdd = []; } if ($comments !== $origComments) { if ($comments) { $result .= $this->pComments($comments) . $this->nl; } } else { $result .= $this->origTokens->getTokenCode( $commentStartPos, $itemStartPos, $indentAdjustment); } // If we had to remove anything, we have done so now. $skipRemovedNode = false; } elseif ($diffType === DiffElem::TYPE_ADD) { if (null === $insertStr) { // We don't have insertion information for this list type return null; } // We go multiline if the original code was multiline, // or if it's an array item with a comment above it. if ($insertStr === ', ' && ($this->isMultiline($origNodes) || $arrItem->getComments()) ) { $insertStr = ','; $insertNewline = true; } if ($beforeFirstKeepOrReplace) { // Will be inserted at the next "replace" or "keep" element $delayedAdd[] = $arrItem; continue; } $itemStartPos = $pos; $itemEndPos = $pos - 1; $origIndentLevel = $this->indentLevel; $this->setIndentLevel($lastElemIndentLevel); if ($insertNewline) { $result .= $insertStr . $this->nl; $comments = $arrItem->getComments(); if ($comments) { $result .= $this->pComments($comments) . $this->nl; } } else { $result .= $insertStr; } } elseif ($diffType === DiffElem::TYPE_REMOVE) { if (!$origArrItem instanceof Node) { // We only support removal for nodes return null; } $itemStartPos = $origArrItem->getStartTokenPos(); $itemEndPos = $origArrItem->getEndTokenPos(); \assert($itemStartPos >= 0 && $itemEndPos >= 0); // Consider comments part of the node. $origComments = $origArrItem->getComments(); if ($origComments) { $itemStartPos = $origComments[0]->getStartTokenPos(); } if ($i === 0) { // If we're removing from the start, keep the tokens before the node and drop those after it, // instead of the other way around. $result .= $this->origTokens->getTokenCode( $pos, $itemStartPos, $indentAdjustment); $skipRemovedNode = true; } else { if ($isStmtList && ($this->origTokens->haveBracesInRange($pos, $itemStartPos) || $this->origTokens->haveTagInRange($pos, $itemStartPos))) { // We'd remove the brace of a code block. // TODO: Preserve formatting. return null; } } $pos = $itemEndPos + 1; continue; } else { throw new \Exception("Shouldn't happen"); } if (null !== $fixup && $arrItem->getAttribute('origNode') !== $origArrItem) { $res = $this->pFixup($fixup, $arrItem, null, $itemStartPos, $itemEndPos); } else { $res = $this->p($arrItem, true); } $this->safeAppend($result, $res); $this->setIndentLevel($origIndentLevel); $pos = $itemEndPos + 1; } if ($skipRemovedNode) { // TODO: Support removing single node. return null; } if (!empty($delayedAdd)) { if (!isset($this->emptyListInsertionMap[$mapKey])) { return null; } list($findToken, $extraLeft, $extraRight) = $this->emptyListInsertionMap[$mapKey]; if (null !== $findToken) { $insertPos = $this->origTokens->findRight($pos, $findToken) + 1; $result .= $this->origTokens->getTokenCode($pos, $insertPos, $indentAdjustment); $pos = $insertPos; } $first = true; $result .= $extraLeft; foreach ($delayedAdd as $delayedAddNode) { if (!$first) { $result .= $insertStr; if ($insertNewline) { $result .= $this->nl; } } $result .= $this->p($delayedAddNode, true); $first = false; } $result .= $extraRight === "\n" ? $this->nl : $extraRight; } return $result; } /** * Print node with fixups. * * Fixups here refer to the addition of extra parentheses, braces or other characters, that * are required to preserve program semantics in a certain context (e.g. to maintain precedence * or because only certain expressions are allowed in certain places). * * @param int $fixup Fixup type * @param Node $subNode Subnode to print * @param string|null $parentClass Class of parent node * @param int $subStartPos Original start pos of subnode * @param int $subEndPos Original end pos of subnode * * @return string Result of fixed-up print of subnode */ protected function pFixup(int $fixup, Node $subNode, $parentClass, int $subStartPos, int $subEndPos) : string { switch ($fixup) { case self::FIXUP_PREC_LEFT: case self::FIXUP_PREC_RIGHT: if (!$this->origTokens->haveParens($subStartPos, $subEndPos)) { list($precedence, $associativity) = $this->precedenceMap[$parentClass]; return $this->pPrec($subNode, $precedence, $associativity, $fixup === self::FIXUP_PREC_LEFT ? -1 : 1); } break; case self::FIXUP_CALL_LHS: if ($this->callLhsRequiresParens($subNode) && !$this->origTokens->haveParens($subStartPos, $subEndPos) ) { return '(' . $this->p($subNode) . ')'; } break; case self::FIXUP_DEREF_LHS: if ($this->dereferenceLhsRequiresParens($subNode) && !$this->origTokens->haveParens($subStartPos, $subEndPos) ) { return '(' . $this->p($subNode) . ')'; } break; case self::FIXUP_BRACED_NAME: case self::FIXUP_VAR_BRACED_NAME: if ($subNode instanceof Expr && !$this->origTokens->haveBraces($subStartPos, $subEndPos) ) { return ($fixup === self::FIXUP_VAR_BRACED_NAME ? '$' : '') . '{' . $this->p($subNode) . '}'; } break; case self::FIXUP_ENCAPSED: if (!$subNode instanceof Scalar\EncapsedStringPart && !$this->origTokens->haveBraces($subStartPos, $subEndPos) ) { return '{' . $this->p($subNode) . '}'; } break; default: throw new \Exception('Cannot happen'); } // Nothing special to do return $this->p($subNode); } /** * Appends to a string, ensuring whitespace between label characters. * * Example: "echo" and "$x" result in "echo$x", but "echo" and "x" result in "echo x". * Without safeAppend the result would be "echox", which does not preserve semantics. * * @param string $str * @param string $append */ protected function safeAppend(string &$str, string $append) { if ($str === "") { $str = $append; return; } if ($append === "") { return; } if (!$this->labelCharMap[$append[0]] || !$this->labelCharMap[$str[\strlen($str) - 1]]) { $str .= $append; } else { $str .= " " . $append; } } /** * Determines whether the LHS of a call must be wrapped in parenthesis. * * @param Node $node LHS of a call * * @return bool Whether parentheses are required */ protected function callLhsRequiresParens(Node $node) : bool { return !($node instanceof Node\Name || $node instanceof Expr\Variable || $node instanceof Expr\ArrayDimFetch || $node instanceof Expr\FuncCall || $node instanceof Expr\MethodCall || $node instanceof Expr\NullsafeMethodCall || $node instanceof Expr\StaticCall || $node instanceof Expr\Array_); } /** * Determines whether the LHS of a dereferencing operation must be wrapped in parenthesis. * * @param Node $node LHS of dereferencing operation * * @return bool Whether parentheses are required */ protected function dereferenceLhsRequiresParens(Node $node) : bool { return !($node instanceof Expr\Variable || $node instanceof Node\Name || $node instanceof Expr\ArrayDimFetch || $node instanceof Expr\PropertyFetch || $node instanceof Expr\NullsafePropertyFetch || $node instanceof Expr\StaticPropertyFetch || $node instanceof Expr\FuncCall || $node instanceof Expr\MethodCall || $node instanceof Expr\NullsafeMethodCall || $node instanceof Expr\StaticCall || $node instanceof Expr\Array_ || $node instanceof Scalar\String_ || $node instanceof Expr\ConstFetch || $node instanceof Expr\ClassConstFetch); } /** * Print modifiers, including trailing whitespace. * * @param int $modifiers Modifier mask to print * * @return string Printed modifiers */ protected function pModifiers(int $modifiers) { return ($modifiers & Stmt\Class_::MODIFIER_PUBLIC ? 'public ' : '') . ($modifiers & Stmt\Class_::MODIFIER_PROTECTED ? 'protected ' : '') . ($modifiers & Stmt\Class_::MODIFIER_PRIVATE ? 'private ' : '') . ($modifiers & Stmt\Class_::MODIFIER_STATIC ? 'static ' : '') . ($modifiers & Stmt\Class_::MODIFIER_ABSTRACT ? 'abstract ' : '') . ($modifiers & Stmt\Class_::MODIFIER_FINAL ? 'final ' : '') . ($modifiers & Stmt\Class_::MODIFIER_READONLY ? 'readonly ' : ''); } /** * Determine whether a list of nodes uses multiline formatting. * * @param (Node|null)[] $nodes Node list * * @return bool Whether multiline formatting is used */ protected function isMultiline(array $nodes) : bool { if (\count($nodes) < 2) { return false; } $pos = -1; foreach ($nodes as $node) { if (null === $node) { continue; } $endPos = $node->getEndTokenPos() + 1; if ($pos >= 0) { $text = $this->origTokens->getTokenCode($pos, $endPos, 0); if (false === strpos($text, "\n")) { // We require that a newline is present between *every* item. If the formatting // is inconsistent, with only some items having newlines, we don't consider it // as multiline return false; } } $pos = $endPos; } return true; } /** * Lazily initializes label char map. * * The label char map determines whether a certain character may occur in a label. */ protected function initializeLabelCharMap() { if ($this->labelCharMap) return; $this->labelCharMap = []; for ($i = 0; $i < 256; $i++) { // Since PHP 7.1 The lower range is 0x80. However, we also want to support code for // older versions. $chr = chr($i); $this->labelCharMap[$chr] = $i >= 0x7f || ctype_alnum($chr); } } /** * Lazily initializes node list differ. * * The node list differ is used to determine differences between two array subnodes. */ protected function initializeNodeListDiffer() { if ($this->nodeListDiffer) return; $this->nodeListDiffer = new Internal\Differ(function ($a, $b) { if ($a instanceof Node && $b instanceof Node) { return $a === $b->getAttribute('origNode'); } // Can happen for array destructuring return $a === null && $b === null; }); } /** * Lazily initializes fixup map. * * The fixup map is used to determine whether a certain subnode of a certain node may require * some kind of "fixup" operation, e.g. the addition of parenthesis or braces. */ protected function initializeFixupMap() { if ($this->fixupMap) return; $this->fixupMap = [ Expr\PreInc::class => ['var' => self::FIXUP_PREC_RIGHT], Expr\PreDec::class => ['var' => self::FIXUP_PREC_RIGHT], Expr\PostInc::class => ['var' => self::FIXUP_PREC_LEFT], Expr\PostDec::class => ['var' => self::FIXUP_PREC_LEFT], Expr\Instanceof_::class => [ 'expr' => self::FIXUP_PREC_LEFT, 'class' => self::FIXUP_PREC_RIGHT, // TODO: FIXUP_NEW_VARIABLE ], Expr\Ternary::class => [ 'cond' => self::FIXUP_PREC_LEFT, 'else' => self::FIXUP_PREC_RIGHT, ], Expr\FuncCall::class => ['name' => self::FIXUP_CALL_LHS], Expr\StaticCall::class => ['class' => self::FIXUP_DEREF_LHS], Expr\ArrayDimFetch::class => ['var' => self::FIXUP_DEREF_LHS], Expr\ClassConstFetch::class => ['var' => self::FIXUP_DEREF_LHS], Expr\New_::class => ['class' => self::FIXUP_DEREF_LHS], // TODO: FIXUP_NEW_VARIABLE Expr\MethodCall::class => [ 'var' => self::FIXUP_DEREF_LHS, 'name' => self::FIXUP_BRACED_NAME, ], Expr\NullsafeMethodCall::class => [ 'var' => self::FIXUP_DEREF_LHS, 'name' => self::FIXUP_BRACED_NAME, ], Expr\StaticPropertyFetch::class => [ 'class' => self::FIXUP_DEREF_LHS, 'name' => self::FIXUP_VAR_BRACED_NAME, ], Expr\PropertyFetch::class => [ 'var' => self::FIXUP_DEREF_LHS, 'name' => self::FIXUP_BRACED_NAME, ], Expr\NullsafePropertyFetch::class => [ 'var' => self::FIXUP_DEREF_LHS, 'name' => self::FIXUP_BRACED_NAME, ], Scalar\Encapsed::class => [ 'parts' => self::FIXUP_ENCAPSED, ], ]; $binaryOps = [ BinaryOp\Pow::class, BinaryOp\Mul::class, BinaryOp\Div::class, BinaryOp\Mod::class, BinaryOp\Plus::class, BinaryOp\Minus::class, BinaryOp\Concat::class, BinaryOp\ShiftLeft::class, BinaryOp\ShiftRight::class, BinaryOp\Smaller::class, BinaryOp\SmallerOrEqual::class, BinaryOp\Greater::class, BinaryOp\GreaterOrEqual::class, BinaryOp\Equal::class, BinaryOp\NotEqual::class, BinaryOp\Identical::class, BinaryOp\NotIdentical::class, BinaryOp\Spaceship::class, BinaryOp\BitwiseAnd::class, BinaryOp\BitwiseXor::class, BinaryOp\BitwiseOr::class, BinaryOp\BooleanAnd::class, BinaryOp\BooleanOr::class, BinaryOp\Coalesce::class, BinaryOp\LogicalAnd::class, BinaryOp\LogicalXor::class, BinaryOp\LogicalOr::class, ]; foreach ($binaryOps as $binaryOp) { $this->fixupMap[$binaryOp] = [ 'left' => self::FIXUP_PREC_LEFT, 'right' => self::FIXUP_PREC_RIGHT ]; } $assignOps = [ Expr\Assign::class, Expr\AssignRef::class, AssignOp\Plus::class, AssignOp\Minus::class, AssignOp\Mul::class, AssignOp\Div::class, AssignOp\Concat::class, AssignOp\Mod::class, AssignOp\BitwiseAnd::class, AssignOp\BitwiseOr::class, AssignOp\BitwiseXor::class, AssignOp\ShiftLeft::class, AssignOp\ShiftRight::class, AssignOp\Pow::class, AssignOp\Coalesce::class ]; foreach ($assignOps as $assignOp) { $this->fixupMap[$assignOp] = [ 'var' => self::FIXUP_PREC_LEFT, 'expr' => self::FIXUP_PREC_RIGHT, ]; } $prefixOps = [ Expr\BitwiseNot::class, Expr\BooleanNot::class, Expr\UnaryPlus::class, Expr\UnaryMinus::class, Cast\Int_::class, Cast\Double::class, Cast\String_::class, Cast\Array_::class, Cast\Object_::class, Cast\Bool_::class, Cast\Unset_::class, Expr\ErrorSuppress::class, Expr\YieldFrom::class, Expr\Print_::class, Expr\Include_::class, ]; foreach ($prefixOps as $prefixOp) { $this->fixupMap[$prefixOp] = ['expr' => self::FIXUP_PREC_RIGHT]; } } /** * Lazily initializes the removal map. * * The removal map is used to determine which additional tokens should be removed when a * certain node is replaced by null. */ protected function initializeRemovalMap() { if ($this->removalMap) return; $stripBoth = ['left' => \T_WHITESPACE, 'right' => \T_WHITESPACE]; $stripLeft = ['left' => \T_WHITESPACE]; $stripRight = ['right' => \T_WHITESPACE]; $stripDoubleArrow = ['right' => \T_DOUBLE_ARROW]; $stripColon = ['left' => ':']; $stripEquals = ['left' => '=']; $this->removalMap = [ 'Expr_ArrayDimFetch->dim' => $stripBoth, 'Expr_ArrayItem->key' => $stripDoubleArrow, 'Expr_ArrowFunction->returnType' => $stripColon, 'Expr_Closure->returnType' => $stripColon, 'Expr_Exit->expr' => $stripBoth, 'Expr_Ternary->if' => $stripBoth, 'Expr_Yield->key' => $stripDoubleArrow, 'Expr_Yield->value' => $stripBoth, 'Param->type' => $stripRight, 'Param->default' => $stripEquals, 'Stmt_Break->num' => $stripBoth, 'Stmt_Catch->var' => $stripLeft, 'Stmt_ClassMethod->returnType' => $stripColon, 'Stmt_Class->extends' => ['left' => \T_EXTENDS], 'Stmt_Enum->scalarType' => $stripColon, 'Stmt_EnumCase->expr' => $stripEquals, 'Expr_PrintableNewAnonClass->extends' => ['left' => \T_EXTENDS], 'Stmt_Continue->num' => $stripBoth, 'Stmt_Foreach->keyVar' => $stripDoubleArrow, 'Stmt_Function->returnType' => $stripColon, 'Stmt_If->else' => $stripLeft, 'Stmt_Namespace->name' => $stripLeft, 'Stmt_Property->type' => $stripRight, 'Stmt_PropertyProperty->default' => $stripEquals, 'Stmt_Return->expr' => $stripBoth, 'Stmt_StaticVar->default' => $stripEquals, 'Stmt_TraitUseAdaptation_Alias->newName' => $stripLeft, 'Stmt_TryCatch->finally' => $stripLeft, // 'Stmt_Case->cond': Replace with "default" // 'Stmt_Class->name': Unclear what to do // 'Stmt_Declare->stmts': Not a plain node // 'Stmt_TraitUseAdaptation_Alias->newModifier': Not a plain node ]; } protected function initializeInsertionMap() { if ($this->insertionMap) return; // TODO: "yield" where both key and value are inserted doesn't work // [$find, $beforeToken, $extraLeft, $extraRight] $this->insertionMap = [ 'Expr_ArrayDimFetch->dim' => ['[', false, null, null], 'Expr_ArrayItem->key' => [null, false, null, ' => '], 'Expr_ArrowFunction->returnType' => [')', false, ' : ', null], 'Expr_Closure->returnType' => [')', false, ' : ', null], 'Expr_Ternary->if' => ['?', false, ' ', ' '], 'Expr_Yield->key' => [\T_YIELD, false, null, ' => '], 'Expr_Yield->value' => [\T_YIELD, false, ' ', null], 'Param->type' => [null, false, null, ' '], 'Param->default' => [null, false, ' = ', null], 'Stmt_Break->num' => [\T_BREAK, false, ' ', null], 'Stmt_Catch->var' => [null, false, ' ', null], 'Stmt_ClassMethod->returnType' => [')', false, ' : ', null], 'Stmt_Class->extends' => [null, false, ' extends ', null], 'Stmt_Enum->scalarType' => [null, false, ' : ', null], 'Stmt_EnumCase->expr' => [null, false, ' = ', null], 'Expr_PrintableNewAnonClass->extends' => [null, ' extends ', null], 'Stmt_Continue->num' => [\T_CONTINUE, false, ' ', null], 'Stmt_Foreach->keyVar' => [\T_AS, false, null, ' => '], 'Stmt_Function->returnType' => [')', false, ' : ', null], 'Stmt_If->else' => [null, false, ' ', null], 'Stmt_Namespace->name' => [\T_NAMESPACE, false, ' ', null], 'Stmt_Property->type' => [\T_VARIABLE, true, null, ' '], 'Stmt_PropertyProperty->default' => [null, false, ' = ', null], 'Stmt_Return->expr' => [\T_RETURN, false, ' ', null], 'Stmt_StaticVar->default' => [null, false, ' = ', null], //'Stmt_TraitUseAdaptation_Alias->newName' => [T_AS, false, ' ', null], // TODO 'Stmt_TryCatch->finally' => [null, false, ' ', null], // 'Expr_Exit->expr': Complicated due to optional () // 'Stmt_Case->cond': Conversion from default to case // 'Stmt_Class->name': Unclear // 'Stmt_Declare->stmts': Not a proper node // 'Stmt_TraitUseAdaptation_Alias->newModifier': Not a proper node ]; } protected function initializeListInsertionMap() { if ($this->listInsertionMap) return; $this->listInsertionMap = [ // special //'Expr_ShellExec->parts' => '', // TODO These need to be treated more carefully //'Scalar_Encapsed->parts' => '', 'Stmt_Catch->types' => '|', 'UnionType->types' => '|', 'IntersectionType->types' => '&', 'Stmt_If->elseifs' => ' ', 'Stmt_TryCatch->catches' => ' ', // comma-separated lists 'Expr_Array->items' => ', ', 'Expr_ArrowFunction->params' => ', ', 'Expr_Closure->params' => ', ', 'Expr_Closure->uses' => ', ', 'Expr_FuncCall->args' => ', ', 'Expr_Isset->vars' => ', ', 'Expr_List->items' => ', ', 'Expr_MethodCall->args' => ', ', 'Expr_NullsafeMethodCall->args' => ', ', 'Expr_New->args' => ', ', 'Expr_PrintableNewAnonClass->args' => ', ', 'Expr_StaticCall->args' => ', ', 'Stmt_ClassConst->consts' => ', ', 'Stmt_ClassMethod->params' => ', ', 'Stmt_Class->implements' => ', ', 'Stmt_Enum->implements' => ', ', 'Expr_PrintableNewAnonClass->implements' => ', ', 'Stmt_Const->consts' => ', ', 'Stmt_Declare->declares' => ', ', 'Stmt_Echo->exprs' => ', ', 'Stmt_For->init' => ', ', 'Stmt_For->cond' => ', ', 'Stmt_For->loop' => ', ', 'Stmt_Function->params' => ', ', 'Stmt_Global->vars' => ', ', 'Stmt_GroupUse->uses' => ', ', 'Stmt_Interface->extends' => ', ', 'Stmt_Match->arms' => ', ', 'Stmt_Property->props' => ', ', 'Stmt_StaticVar->vars' => ', ', 'Stmt_TraitUse->traits' => ', ', 'Stmt_TraitUseAdaptation_Precedence->insteadof' => ', ', 'Stmt_Unset->vars' => ', ', 'Stmt_Use->uses' => ', ', 'MatchArm->conds' => ', ', 'AttributeGroup->attrs' => ', ', // statement lists 'Expr_Closure->stmts' => "\n", 'Stmt_Case->stmts' => "\n", 'Stmt_Catch->stmts' => "\n", 'Stmt_Class->stmts' => "\n", 'Stmt_Enum->stmts' => "\n", 'Expr_PrintableNewAnonClass->stmts' => "\n", 'Stmt_Interface->stmts' => "\n", 'Stmt_Trait->stmts' => "\n", 'Stmt_ClassMethod->stmts' => "\n", 'Stmt_Declare->stmts' => "\n", 'Stmt_Do->stmts' => "\n", 'Stmt_ElseIf->stmts' => "\n", 'Stmt_Else->stmts' => "\n", 'Stmt_Finally->stmts' => "\n", 'Stmt_Foreach->stmts' => "\n", 'Stmt_For->stmts' => "\n", 'Stmt_Function->stmts' => "\n", 'Stmt_If->stmts' => "\n", 'Stmt_Namespace->stmts' => "\n", 'Stmt_Class->attrGroups' => "\n", 'Stmt_Enum->attrGroups' => "\n", 'Stmt_EnumCase->attrGroups' => "\n", 'Stmt_Interface->attrGroups' => "\n", 'Stmt_Trait->attrGroups' => "\n", 'Stmt_Function->attrGroups' => "\n", 'Stmt_ClassMethod->attrGroups' => "\n", 'Stmt_ClassConst->attrGroups' => "\n", 'Stmt_Property->attrGroups' => "\n", 'Expr_PrintableNewAnonClass->attrGroups' => ' ', 'Expr_Closure->attrGroups' => ' ', 'Expr_ArrowFunction->attrGroups' => ' ', 'Param->attrGroups' => ' ', 'Stmt_Switch->cases' => "\n", 'Stmt_TraitUse->adaptations' => "\n", 'Stmt_TryCatch->stmts' => "\n", 'Stmt_While->stmts' => "\n", // dummy for top-level context 'File->stmts' => "\n", ]; } protected function initializeEmptyListInsertionMap() { if ($this->emptyListInsertionMap) return; // TODO Insertion into empty statement lists. // [$find, $extraLeft, $extraRight] $this->emptyListInsertionMap = [ 'Expr_ArrowFunction->params' => ['(', '', ''], 'Expr_Closure->uses' => [')', ' use(', ')'], 'Expr_Closure->params' => ['(', '', ''], 'Expr_FuncCall->args' => ['(', '', ''], 'Expr_MethodCall->args' => ['(', '', ''], 'Expr_NullsafeMethodCall->args' => ['(', '', ''], 'Expr_New->args' => ['(', '', ''], 'Expr_PrintableNewAnonClass->args' => ['(', '', ''], 'Expr_PrintableNewAnonClass->implements' => [null, ' implements ', ''], 'Expr_StaticCall->args' => ['(', '', ''], 'Stmt_Class->implements' => [null, ' implements ', ''], 'Stmt_Enum->implements' => [null, ' implements ', ''], 'Stmt_ClassMethod->params' => ['(', '', ''], 'Stmt_Interface->extends' => [null, ' extends ', ''], 'Stmt_Function->params' => ['(', '', ''], 'Stmt_Interface->attrGroups' => [null, '', "\n"], 'Stmt_Class->attrGroups' => [null, '', "\n"], 'Stmt_ClassConst->attrGroups' => [null, '', "\n"], 'Stmt_ClassMethod->attrGroups' => [null, '', "\n"], 'Stmt_Function->attrGroups' => [null, '', "\n"], 'Stmt_Property->attrGroups' => [null, '', "\n"], 'Stmt_Trait->attrGroups' => [null, '', "\n"], 'Expr_ArrowFunction->attrGroups' => [null, '', ' '], 'Expr_Closure->attrGroups' => [null, '', ' '], 'Expr_PrintableNewAnonClass->attrGroups' => [\T_NEW, ' ', ''], /* These cannot be empty to start with: * Expr_Isset->vars * Stmt_Catch->types * Stmt_Const->consts * Stmt_ClassConst->consts * Stmt_Declare->declares * Stmt_Echo->exprs * Stmt_Global->vars * Stmt_GroupUse->uses * Stmt_Property->props * Stmt_StaticVar->vars * Stmt_TraitUse->traits * Stmt_TraitUseAdaptation_Precedence->insteadof * Stmt_Unset->vars * Stmt_Use->uses * UnionType->types */ /* TODO * Stmt_If->elseifs * Stmt_TryCatch->catches * Expr_Array->items * Expr_List->items * Stmt_For->init * Stmt_For->cond * Stmt_For->loop */ ]; } protected function initializeModifierChangeMap() { if ($this->modifierChangeMap) return; $this->modifierChangeMap = [ 'Stmt_ClassConst->flags' => \T_CONST, 'Stmt_ClassMethod->flags' => \T_FUNCTION, 'Stmt_Class->flags' => \T_CLASS, 'Stmt_Property->flags' => \T_VARIABLE, 'Param->flags' => \T_VARIABLE, //'Stmt_TraitUseAdaptation_Alias->newModifier' => 0, // TODO ]; // List of integer subnodes that are not modifiers: // Expr_Include->type // Stmt_GroupUse->type // Stmt_Use->type // Stmt_UseUse->type } }