From 09990917db8599c6e91bcd278edc889edb85c322 Mon Sep 17 00:00:00 2001
From: Bram Roets <bram.roets@qlik.com>
Date: Mon, 24 May 2021 14:50:56 +0200
Subject: [PATCH] Add backwards compatibility for older composer verions

---
 src/PrettyVersions.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/PrettyVersions.php b/src/PrettyVersions.php
index 17b33b8..6f5a3f1 100644
--- a/src/PrettyVersions.php
+++ b/src/PrettyVersions.php
@@ -43,6 +43,12 @@ public static function getRootPackageVersion(): Version
 
     protected static function checkProvidedPackages(string $packageName): void
     {
+        if (! method_exists(InstalledVersions::class, 'getAllRawData')) {
+            if (isset(InstalledVersions::getRawData()['versions'][$packageName]['provided'])) {
+                throw ProvidedPackageException::create($packageName);
+            }
+        }
+
         foreach (InstalledVersions::getAllRawData() as $installed) {
             if (isset($installed['versions'][$packageName]['provided'])) {
                 throw ProvidedPackageException::create($packageName);
@@ -52,6 +58,12 @@ protected static function checkProvidedPackages(string $packageName): void
 
     protected static function checkReplacedPackages(string $packageName): void
     {
+        if (! method_exists(InstalledVersions::class, 'getAllRawData')) {
+            if (isset(InstalledVersions::getRawData()['versions'][$packageName]['replaced'])) {
+                throw ReplacedPackageException::create($packageName);
+            }
+        }
+
         foreach (InstalledVersions::getAllRawData() as $installed) {
             if (isset($installed['versions'][$packageName]['replaced'])) {
                 throw ReplacedPackageException::create($packageName);