From ec61297122258f21a030d54844f3c9827bef1e3d Mon Sep 17 00:00:00 2001
From: Volker Dusch <github@wallbash.com>
Date: Sat, 18 Feb 2012 18:31:19 +0100
Subject: [PATCH] Remove the allowUninstall policy option and clean up the only
 usage

---
 src/Composer/DependencyResolver/DefaultPolicy.php   |  5 -----
 src/Composer/DependencyResolver/PolicyInterface.php |  1 -
 src/Composer/DependencyResolver/Solver.php          | 11 +++--------
 3 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/src/Composer/DependencyResolver/DefaultPolicy.php b/src/Composer/DependencyResolver/DefaultPolicy.php
index f06b4104b..63699d883 100644
--- a/src/Composer/DependencyResolver/DefaultPolicy.php
+++ b/src/Composer/DependencyResolver/DefaultPolicy.php
@@ -21,11 +21,6 @@ use Composer\Package\LinkConstraint\VersionConstraint;
  */
 class DefaultPolicy implements PolicyInterface
 {
-    public function allowUninstall()
-    {
-        return true;
-    }
-
     public function versionCompare(PackageInterface $a, PackageInterface $b, $operator)
     {
         $constraint = new VersionConstraint($operator, $b->getVersion());
diff --git a/src/Composer/DependencyResolver/PolicyInterface.php b/src/Composer/DependencyResolver/PolicyInterface.php
index 45309a081..7c26ab63f 100644
--- a/src/Composer/DependencyResolver/PolicyInterface.php
+++ b/src/Composer/DependencyResolver/PolicyInterface.php
@@ -20,7 +20,6 @@ use Composer\Package\PackageInterface;
  */
 interface PolicyInterface
 {
-    function allowUninstall();
     function versionCompare(PackageInterface $a, PackageInterface $b, $operator);
     function findUpdatePackages(Solver $solver, Pool $pool, array $installedMap, PackageInterface $package);
     function installable(Solver $solver, Pool $pool, array $installedMap, PackageInterface $package);
diff --git a/src/Composer/DependencyResolver/Solver.php b/src/Composer/DependencyResolver/Solver.php
index 680b87591..25d186073 100644
--- a/src/Composer/DependencyResolver/Solver.php
+++ b/src/Composer/DependencyResolver/Solver.php
@@ -986,14 +986,9 @@ class Solver
             $updates = $this->policy->findUpdatePackages($this, $this->pool, $this->installedMap, $package);
             $rule = $this->createUpdateRule($package, $updates, self::RULE_INTERNAL_ALLOW_UPDATE, (string) $package);
 
-            if ($this->policy->allowUninstall()) {
-                $rule->setWeak(true);
-                $this->addRule(RuleSet::TYPE_FEATURE, $rule);
-                $this->packageToFeatureRule[$package->getId()] = $rule;
-            } else {
-                $this->addRule(RuleSet::TYPE_UPDATE, $rule);
-                $this->packageToUpdateRule[$package->getId()] = $rule;
-            }
+            $rule->setWeak(true);
+            $this->addRule(RuleSet::TYPE_FEATURE, $rule);
+            $this->packageToFeatureRule[$package->getId()] = $rule;
         }
 
         foreach ($this->jobs as $job) {