Add spec and types

Author: Christian Blank

src/Checker.php

@@ -14,7 +14,7 @@ class Checker implements CheckerInterface
     /**
      * @inheritdoc
      */
-    public function fulfills(array $argument1, TypeInterface $requirement)
+    public function fulfills($argument1, TypeInterface $requirement)
     {
         return new Result(true, []);
     }

src/CheckerInterface.php

@@ -12,10 +12,10 @@ interface CheckerInterface
 {
 
     /**
-     * @param array $tested
+     * @param mixed $element the element which should be tested
      * @param TypeInterface $requirement
      *
      * @return ResultInterface
      */
-    public function fulfills(array $tested, TypeInterface $requirement);
+    public function fulfills($element, TypeInterface $requirement);
 }

src/Type/BoolType.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace StructureCheck\Type;
+
+use StructureCheck\Result;
+use StructureCheck\ResultInterface;
+
+/**
+ * Class BoolType
+ * @package StructureCheck\Type
+ */
+class BoolType implements TypeInterface
+{
+    private static $errorMessage = 'The value %s is not a boolean.';
+
+    /**
+     * @param mixed $value
+     *
+     * @return ResultInterface
+     */
+    public function check($value)
+    {
+        $checkResult = is_string($value);
+
+        return new Result(
+            $checkResult,
+            !$checkResult ? [sprintf(self::$errorMessage, json_encode($value))] : []
+        );
+    }
+}

src/Type/FloatType.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace StructureCheck\Type;
+
+class FloatType
+{
+}

src/Type/IntType.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace StructureCheck\Type;
+
+use StructureCheck\Result;
+use StructureCheck\ResultInterface;
+
+/**
+ * Class IntType
+ * @package StructureCheck\Type
+ */
+class IntType implements TypeInterface
+{
+    private static $errorMessage = 'The value %s is not an integer.';
+
+    /**
+     * @param mixed $value
+     *
+     * @return ResultInterface
+     */
+    public function check($value)
+    {
+        $checkResult = is_int($value);
+
+        return new Result(
+            $checkResult,
+            !$checkResult ? [sprintf(self::$errorMessage, json_encode($value))] : []
+        );
+    }
+}

src/Type/ListType.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace StructureCheck\Type;
+
+class ListType
+{
+}

src/Type/NullableType.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace StructureCheck\Type;
+
+use StructureCheck\Result;
+
+/**
+ * Class NullableType
+ * @package StructureCheck\Type
+ */
+class NullableType implements TypeInterface
+{
+
+    /**
+     * @var TypeInterface
+     */
+    private $child;
+
+    /**
+     * NullableType constructor.
+     *
+     * @param TypeInterface $child
+     */
+    public function __construct(TypeInterface $child)
+    {
+        $this->child = $child;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function check($value)
+    {
+        if(is_null($value)) {
+            return new Result(true, []);
+        }
+
+        return $this->child->check($value);
+    }
+}

src/Type/ObjectType.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace StructureCheck\Type;
+
+class ObjectType
+{
+}

src/Type/StringType.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace StructureCheck\Type;
+
+use StructureCheck\Result;
+use StructureCheck\ResultInterface;
+
+/**
+ * Class StringType
+ * @package StructureCheck\Type
+ */
+class StringType implements TypeInterface
+{
+    private static $errorMessage = 'The value %s is not a string.';
+
+    /**
+     * @param mixed $value
+     *
+     * @return ResultInterface
+     */
+    public function check($value)
+    {
+        $checkResult = is_string($value);
+
+        return new Result(
+            $checkResult,
+            !$checkResult ? [sprintf(self::$errorMessage, json_encode($value))] : []
+        );
+    }
+}