[WIP] Very rudimentary starting point for Model::where*() methods

src/BuilderMethodExtension.php

@@ -70,6 +70,10 @@ public function hasMethod(ClassReflection $classReflection, string $methodName):
             $this->methods[$classReflection->getName()] += $this->createMethods($classReflection, $queryBuilder);
         }
 
+        if ($classReflection->isSubclassOf(Model::class)) {
+            $this->methods[$classReflection->getName()] += $this->createModelMethod($classReflection, $methodName);
+        }
+
         if ($classReflection->getName() === Builder::class && !isset($this->methods[Builder::class])) {
             $queryBuilder = $this->broker->getClass(QueryBuilder::class);
             $this->methods[Builder::class] = $this->createMethods($classReflection, $queryBuilder);
@@ -127,4 +131,29 @@ private function createWrappedMethods(ClassReflection $classReflection, ClassRef
 
         return $methods;
     }
+
+    /**
+     * @param ClassReflection $classReflection
+     *
+     * @return \PHPStan\Reflection\MethodReflection
+     */
+    private function createModelMethod(ClassReflection $classReflection, string $methodName): array
+    {
+        if (strpos($methodName, 'where') !== 0) {
+            return [];
+        }
+
+        $propertyName = strtolower(substr($methodName, 5, 1)) . substr($methodName, 6);
+        if (!$classReflection->hasProperty($propertyName)) {
+            return [];
+        }
+
+        return [
+            $methodName => new CustomMethod(
+                $classReflection,
+                $methodName,
+                $classReflection->getName()
+            )
+        ];
+    }
 }

src/CustomMethod.php

@@ -0,0 +1,78 @@
+<?php declare(strict_types = 1);
+
+namespace Weebly\PHPStan\Laravel;
+
+use PHPStan\Reflection\ClassReflection;
+use PHPStan\Reflection\MethodReflection;
+use PHPStan\Type\ObjectType;
+use PHPStan\Type\Type;
+use PHPStan\Type\UnionType;
+
+class CustomMethod implements MethodReflection
+{
+    protected $class;
+    protected $name;
+    protected $returnType;
+
+    public function __construct(
+        ClassReflection $class,
+        string $name,
+        $returnType
+    ) {
+        $this->class = $class;
+        $this->name = $name;
+        $this->returnType = $returnType;
+    }
+
+    public function getDeclaringClass(): ClassReflection
+    {
+        return $this->class;
+    }
+
+    public function getPrototype(): MethodReflection
+    {
+        return $this;
+    }
+
+    public function isStatic(): bool
+    {
+        return true;
+    }
+
+    public function isPrivate(): bool
+    {
+        return false;
+    }
+
+    public function isPublic(): bool
+    {
+        return true;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    /**
+     * @return \PHPStan\Reflection\ParameterReflection[]
+     */
+    public function getParameters(): array
+    {
+        return [];
+    }
+
+    public function isVariadic(): bool
+    {
+        return true;
+    }
+
+    public function getReturnType(): Type
+    {
+        if (is_array($this->returnType)) {
+            return new UnionType($this->returnType);
+        }
+
+        return new ObjectType($this->returnType);
+    }
+}