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vendor/doctrine/dbal/src/Driver/OCI8/ConvertPositionalToNamedPlaceholders.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Doctrine\DBAL\Driver\OCI8;
+
+use Doctrine\DBAL\SQL\Parser\Visitor;
+
+use function count;
+use function implode;
+
+/**
+ * Converts positional (?) into named placeholders (:param<num>).
+ *
+ * Oracle does not support positional parameters, hence this method converts all
+ * positional parameters into artificially named parameters.
+ *
+ * @internal This class is not covered by the backward compatibility promise
+ */
+final class ConvertPositionalToNamedPlaceholders implements Visitor
+{
+    /** @var list<string> */
+    private array $buffer = [];
+
+    /** @var array<int,string> */
+    private array $parameterMap = [];
+
+    public function acceptOther(string $sql): void
+    {
+        $this->buffer[] = $sql;
+    }
+
+    public function acceptPositionalParameter(string $sql): void
+    {
+        $position = count($this->parameterMap) + 1;
+        $param    = ':param' . $position;
+
+        $this->parameterMap[$position] = $param;
+
+        $this->buffer[] = $param;
+    }
+
+    public function acceptNamedParameter(string $sql): void
+    {
+        $this->buffer[] = $sql;
+    }
+
+    public function getSQL(): string
+    {
+        return implode('', $this->buffer);
+    }
+
+    /** @return array<int,string> */
+    public function getParameterMap(): array
+    {
+        return $this->parameterMap;
+    }
+}