Bleeding edge - require rules to return list<IdentifierRuleError>

Author: ondrejmirtes

Diff for: conf/bleedingEdge.neon

@@ -39,3 +39,5 @@ parameters:
 		stricterFunctionMap: true
 		invalidPhpDocTagLine: true
 		detectDeadTypeInMultiCatch: true
+	stubFiles:
+		- ../stubs/bleedingEdge/Rule.stub

Diff for: phpstan-baseline.neon

@@ -440,6 +440,16 @@ parameters:
 			count: 1
 			path: src/Rules/Api/NodeConnectingVisitorAttributesRule.php
 
+		-
+			message: "#^Method PHPStan\\\\Rules\\\\Arrays\\\\AppendedArrayItemTypeRule\\:\\:processNode\\(\\) should return list\\<PHPStan\\\\Rules\\\\IdentifierRuleError\\> but returns array\\{PHPStan\\\\Rules\\\\TipRuleError\\}\\.$#"
+			count: 1
+			path: src/Rules/Arrays/AppendedArrayItemTypeRule.php
+
+		-
+			message: "#^Method PHPStan\\\\Rules\\\\Arrays\\\\AppendedArrayKeyTypeRule\\:\\:processNode\\(\\) should return list\\<PHPStan\\\\Rules\\\\IdentifierRuleError\\> but returns array\\{PHPStan\\\\Rules\\\\RuleError\\}\\.$#"
+			count: 1
+			path: src/Rules/Arrays/AppendedArrayKeyTypeRule.php
+
 		-
 			message: "#^Doing instanceof PHPStan\\\\Type\\\\ConstantScalarType is error\\-prone and deprecated\\. Use Type\\:\\:isConstantScalarValue\\(\\) or Type\\:\\:getConstantScalarTypes\\(\\) or Type\\:\\:getConstantScalarValues\\(\\) instead\\.$#"
 			count: 1
@@ -518,6 +528,11 @@ parameters:
 			count: 4
 			path: src/Rules/Comparison/MatchExpressionRule.php
 
+		-
+			message: "#^Method PHPStan\\\\Rules\\\\Comparison\\\\MatchExpressionRule\\:\\:processNode\\(\\) should return list\\<PHPStan\\\\Rules\\\\IdentifierRuleError\\> but returns list\\<PHPStan\\\\Rules\\\\IdentifierRuleError\\|PHPStan\\\\Rules\\\\LineRuleError\\>\\.$#"
+			count: 1
+			path: src/Rules/Comparison/MatchExpressionRule.php
+
 		-
 			message: "#^Doing instanceof PHPStan\\\\Type\\\\Constant\\\\ConstantBooleanType is error\\-prone and deprecated\\. Use Type\\:\\:isTrue\\(\\) or Type\\:\\:isFalse\\(\\) instead\\.$#"
 			count: 2
@@ -538,11 +553,21 @@ parameters:
 			count: 1
 			path: src/Rules/Comparison/UnreachableIfBranchesRule.php
 
+		-
+			message: "#^Method PHPStan\\\\Rules\\\\Comparison\\\\UnreachableIfBranchesRule\\:\\:processNode\\(\\) should return list\\<PHPStan\\\\Rules\\\\IdentifierRuleError\\> but returns list\\<PHPStan\\\\Rules\\\\RuleError\\>\\.$#"
+			count: 1
+			path: src/Rules/Comparison/UnreachableIfBranchesRule.php
+
 		-
 			message: "#^Doing instanceof PHPStan\\\\Type\\\\Constant\\\\ConstantBooleanType is error\\-prone and deprecated\\. Use Type\\:\\:isTrue\\(\\) or Type\\:\\:isFalse\\(\\) instead\\.$#"
 			count: 1
 			path: src/Rules/Comparison/UnreachableTernaryElseBranchRule.php
 
+		-
+			message: "#^Method PHPStan\\\\Rules\\\\Comparison\\\\UnreachableTernaryElseBranchRule\\:\\:processNode\\(\\) should return list\\<PHPStan\\\\Rules\\\\IdentifierRuleError\\> but returns array\\{PHPStan\\\\Rules\\\\LineRuleError\\}\\.$#"
+			count: 1
+			path: src/Rules/Comparison/UnreachableTernaryElseBranchRule.php
+
 		-
 			message: "#^Doing instanceof PHPStan\\\\Type\\\\Constant\\\\ConstantBooleanType is error\\-prone and deprecated\\. Use Type\\:\\:isTrue\\(\\) or Type\\:\\:isFalse\\(\\) instead\\.$#"
 			count: 1

Diff for: stubs/bleedingEdge/Rule.stub

@@ -0,0 +1,26 @@
+<?php declare(strict_types = 1);
+
+namespace PHPStan\Rules;
+
+use PhpParser\Node;
+use PHPStan\Analyser\Scope;
+
+/**
+ * @api
+ * @phpstan-template TNodeType of Node
+ */
+interface Rule
+{
+
+	/**
+	 * @phpstan-return class-string<TNodeType>
+	 */
+	public function getNodeType(): string;
+
+	/**
+	 * @phpstan-param TNodeType $node
+	 * @return list<IdentifierRuleError>
+	 */
+	public function processNode(Node $node, Scope $scope): array;
+
+}