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<?php
declare (strict_types=1);
namespace Rector\Core\PhpParser;
use PhpParser\BuilderHelpers;
use PhpParser\Node\Arg;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\Array_;
use PhpParser\Node\Expr\ArrayItem;
use PhpParser\Node\Expr\BinaryOp\Concat;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\Yield_;
use PhpParser\Node\Scalar\String_;
use PhpParser\Node\Stmt\Expression;
use Rector\Core\Exception\ShouldNotHappenException;
use Rector\Core\Util\StringUtils;
use Rector\Core\ValueObject\SprintfStringAndArgs;
use Rector\NodeTypeResolver\Node\AttributeKey;
final class NodeTransformer
{
/**
* @var string
* @see https://regex101.com/r/XFc3qA/1
*/
private const PERCENT_TEXT_REGEX = '#^%\\w$#';
/**
* From:
* - sprintf("Hi %s", $name);
*
* to:
* - ["Hi %s", $name]
*/
public function transformSprintfToArray(\PhpParser\Node\Expr\FuncCall $sprintfFuncCall) : ?\PhpParser\Node\Expr\Array_
{
$sprintfStringAndArgs = $this->splitMessageAndArgs($sprintfFuncCall);
if (!$sprintfStringAndArgs instanceof \Rector\Core\ValueObject\SprintfStringAndArgs) {
return null;
}
$arrayItems = $sprintfStringAndArgs->getArrayItems();
$stringValue = $sprintfStringAndArgs->getStringValue();
$messageParts = $this->splitBySpace($stringValue);
$arrayMessageParts = [];
foreach ($messageParts as $messagePart) {
if (\Rector\Core\Util\StringUtils::isMatch($messagePart, self::PERCENT_TEXT_REGEX)) {
/** @var Expr $messagePartNode */
$messagePartNode = \array_shift($arrayItems);
} else {
$messagePartNode = new \PhpParser\Node\Scalar\String_($messagePart);
}
$arrayMessageParts[] = new \PhpParser\Node\Expr\ArrayItem($messagePartNode);
}
return new \PhpParser\Node\Expr\Array_($arrayMessageParts);
}
/**
* @return Expression[]
*/
public function transformArrayToYields(\PhpParser\Node\Expr\Array_ $array) : array
{
$yieldNodes = [];
foreach ($array->items as $arrayItem) {
if ($arrayItem === null) {
continue;
}
$expressionNode = new \PhpParser\Node\Stmt\Expression(new \PhpParser\Node\Expr\Yield_($arrayItem->value, $arrayItem->key));
$arrayItemComments = $arrayItem->getComments();
if ($arrayItemComments !== []) {
$expressionNode->setAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::COMMENTS, $arrayItemComments);
}
$yieldNodes[] = $expressionNode;
}
return $yieldNodes;
}
public function transformConcatToStringArray(\PhpParser\Node\Expr\BinaryOp\Concat $concat) : \PhpParser\Node\Expr\Array_
{
$arrayItems = $this->transformConcatToItems($concat);
$array = \PhpParser\BuilderHelpers::normalizeValue($arrayItems);
if (!$array instanceof \PhpParser\Node\Expr\Array_) {
throw new \Rector\Core\Exception\ShouldNotHappenException();
}
return $array;
}
private function splitMessageAndArgs(\PhpParser\Node\Expr\FuncCall $sprintfFuncCall) : ?\Rector\Core\ValueObject\SprintfStringAndArgs
{
$stringArgument = null;
$arrayItems = [];
foreach ($sprintfFuncCall->args as $i => $arg) {
if (!$arg instanceof \PhpParser\Node\Arg) {
continue;
}
if ($i === 0) {
$stringArgument = $arg->value;
} else {
$arrayItems[] = $arg->value;
}
}
if (!$stringArgument instanceof \PhpParser\Node\Scalar\String_) {
return null;
}
if ($arrayItems === []) {
return null;
}
return new \Rector\Core\ValueObject\SprintfStringAndArgs($stringArgument, $arrayItems);
}
/**
* @return string[]
*/
private function splitBySpace(string $value) : array
{
$value = \str_getcsv($value, ' ');
return \array_filter($value);
}
/**
* @return mixed[]
*/
private function transformConcatToItems(\PhpParser\Node\Expr\BinaryOp\Concat $concat) : array
{
$arrayItems = $this->transformConcatItemToArrayItems($concat->left);
return \array_merge($arrayItems, $this->transformConcatItemToArrayItems($concat->right));
}
/**
* @return mixed[]|Expr[]|String_[]
*/
private function transformConcatItemToArrayItems(\PhpParser\Node\Expr $expr) : array
{
if ($expr instanceof \PhpParser\Node\Expr\BinaryOp\Concat) {
return $this->transformConcatToItems($expr);
}
if (!$expr instanceof \PhpParser\Node\Scalar\String_) {
return [$expr];
}
$arrayItems = [];
$parts = $this->splitBySpace($expr->value);
foreach ($parts as $part) {
if (\trim($part) !== '') {
$arrayItems[] = new \PhpParser\Node\Scalar\String_($part);
}
}
return $arrayItems;
}
}
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