function RuleSetGenerator::createRule2Literals

Creates a rule for two conflicting packages

The rule for conflicting packages A and B is (-A|-B). A is called the issuer and B the provider.

@phpstan-param ReasonData $reasonData

Parameters

BasePackage $issuer The package declaring the conflict:

BasePackage $provider The package causing the conflict:

Rule::RULE_* $reason A RULE_* constant describing the reason for generating this rule:

mixed $reasonData Any data, e.g. the package name, that goes with the reason:

Return value

?Rule The generated rule

1 call to RuleSetGenerator::createRule2Literals()

RuleSetGenerator::addConflictRules in vendor/composer/composer/src/Composer/DependencyResolver/RuleSetGenerator.php

File

vendor/composer/composer/src/Composer/DependencyResolver/RuleSetGenerator.php, line 112

Class

RuleSetGenerator

@author Nils Adermann <naderman@naderman.de> @phpstan-import-type ReasonData from Rule

Namespace

Composer\DependencyResolver

Code

protected function createRule2Literals(BasePackage $issuer, BasePackage $provider, $reason, $reasonData) : ?Rule {
    // ignore self conflict
    if ($issuer === $provider) {
        return null;
    }
    return new Rule2Literals(-$issuer->id, -$provider->id, $reason, $reasonData);
}