diff --git a/src/schema/Schema.php b/src/schema/Schema.php
index 82b7fa4..3f110ad 100644
--- a/src/schema/Schema.php
+++ b/src/schema/Schema.php
@@ -3,6 +3,7 @@ namespace nur\sery\schema;
 
 use ArrayAccess;
 use LogicException;
+use nulib\AccessException;
 use nulib\cl;
 use nur\sery\schema\_assoc\AssocSchema;
 use nur\sery\schema\_list\ListSchema;
@@ -12,8 +13,17 @@ abstract class Schema implements ArrayAccess {
   /**
    * créer si besoin une nouvelle instance de {@link Schema} à partir d'une
    * définition de schéma
+   *
+   * - si $schema est une instance de schéma, la retourner
+   * - si $schema est un array, c'est une définition, et elle est remplacée par
+   * l'instance de Schema nouvelle créée
+   * - sinon, prendre $definition comme définition
    */
-  static function ns(?Schema &$schema, $definition, $definitionKey=null): self {
+  static function ns(&$schema, $definition=null, $definitionKey=null): self {
+    if (is_array($schema)) {
+      $definition = $schema;
+      $schema = null;
+    }
     if ($schema === null) {
       if (AssocSchema::isa_definition($definition)) {
         $schema = new AssocSchema($definition, $definitionKey);
@@ -30,15 +40,16 @@ abstract class Schema implements ArrayAccess {
 
   /**
    * Créer si besoin une nouvelle instance de {@link Value} qui référence la
-   * variable $dest
+   * variable $dest (si $destKey===null) ou $dest[$destKey] si $destKey n'est
+   * pas null
    */
-  static function nv(?Value &$value=null, &$dest=null, $key=null, ?Schema &$schema=null, $definition=null): Value {
+  static function nv(?Value &$value=null, &$dest=null, $destKey=null, &$schema=null, $definition=null): Value {
     if ($definition === null) {
       # bien que techniquement, $definition peut être null (il s'agit alors du
       # schéma d'un scalaire quelconque), on ne l'autorise pas ici
       throw SchemaException::invalid_schema("definition is required");
     }
-    return self::ns($schema, $definition)->newValue($value, $dest, $key);
+    return self::ns($schema, $definition)->newValue($value, $dest, $destKey);
   }
 
   /**
@@ -70,10 +81,10 @@ abstract class Schema implements ArrayAccess {
     else return $this->definition[$offset];
   }
   function offsetSet($offset, $value): void {
-    throw new LogicException("read-only");
+    throw AccessException::read_only(null, $offset);
   }
   function offsetUnset($offset): void {
-    throw new LogicException("read-only");
+    throw AccessException::read_only(null, $offset);
   }
 
   const _PROPERTY_PKEYS = [];
diff --git a/src/schema/TODO.md b/src/schema/TODO.md
index 2367491..a9b25c7 100644
--- a/src/schema/TODO.md
+++ b/src/schema/TODO.md
@@ -5,7 +5,7 @@
 
   on pourrait avoir d'une manière générale quelque chose comme:
   ~~~
-  Schema::ensure(&$schema, ?array $def=null, $key=null): Schema;
+  Schema::ensure(&$schema, ?array $def=null, $defKey=null): Schema;
   ~~~
   * si $schema est une instance de Schema, la retourner
   * si c'est un array, c'est une définition et il faut la remplacer par l'instance de Schema correspondant
diff --git a/src/schema/Value.php b/src/schema/Value.php
index bc8de23..c80239b 100644
--- a/src/schema/Value.php
+++ b/src/schema/Value.php
@@ -14,7 +14,7 @@ abstract class Value implements ArrayAccess, IteratorAggregate {
   function isScalar(?ScalarValue &$scalar=null): bool { return false; }
 
   /** spécifier la valeur destination gérée par cet objet */
-  abstract function reset(&$dest, $destKey=null, bool $verifix=true): self;
+  abstract function reset(&$dest, $destKey=null, ?bool $verifix=null): self;
 
   /**
    * Obtenir la liste des clés valides pour les valeurs accessibles via cet
@@ -31,33 +31,55 @@ abstract class Value implements ArrayAccess, IteratorAggregate {
     }
   }
 
-  /** retourner le type associé à la valeur */
-  abstract function getType(): IType;
+  /**
+   * obtenir le résultat de l'appel d'une des fonctions {@link set()} ou
+   * {@link unset()}
+   */
+  abstract function getResult(): Result;
 
   /** retourner true si la valeur existe */
   abstract function isPresent(): bool;
 
+  /** retourner le type associé à la valeur */
+  abstract function getType(): IType;
+
   /** retourner true si la valeur est disponible */
   abstract function isAvailable(): bool;
 
-  /** supprimer la valeur */
-  abstract function unset(): void;
-
-  /** remplacer la valeur */
-  abstract function set($value): self;
-
-  /** obtenir le résultat de l'appel de la fonction {@link set()} */
-  abstract function getResult(): Result;
-
   /** retourner true si la valeur est valide */
   abstract function isValid(): bool;
 
-  /** obtenir la valeur */
-  abstract function get($default=null);
-
   /** retourner true si la valeur est dans sa forme normalisée */
   abstract function isNormalized(): bool;
 
+  /** obtenir la valeur */
+  abstract function get($default=null);
+
+  /** remplacer la valeur */
+  abstract function set($value): self;
+
+  /** supprimer la valeur */
+  abstract function unset(): void;
+
   /** formatter la valeur pour affichage */
   abstract function format($format=null): string;
+
+  #############################################################################
+  # key & properties
+
+  function offsetExists($offset): bool {
+    return in_array($offset, $this->getKeys());
+  }
+
+  function offsetGet($offset) {
+    return $this->getValue($offset);
+  }
+
+  function offsetSet($offset, $value): void {
+    $this->getValue($offset)->set($value);
+  }
+
+  function offsetUnset($offset): void {
+    $this->getValue($offset)->unset();
+  }
 }
diff --git a/src/schema/_scalar/ScalarResult.php b/src/schema/_scalar/ScalarResult.php
index 388a759..c58279b 100644
--- a/src/schema/_scalar/ScalarResult.php
+++ b/src/schema/_scalar/ScalarResult.php
@@ -11,8 +11,8 @@ use nur\sery\schema\Result;
  *
  * @property bool $present la valeur existe-t-elle?
  * @property bool $available si la valeur existe, est-elle disponible?
- * @property bool $null si la valeur existe, est-elle nulle?
- * @property bool $valid si la valeur existe, est-elle valide?
+ * @property bool $null si la valeur est disponible, est-elle nulle?
+ * @property bool $valid si la valeur est disponible, est-elle valide?
  * @property bool $normalized si la valeur est valide, est-elle normalisée?
  * @property string|null $orig valeur originale avant analyse avec parse()
  * @property string|null $message message si la valeur n'est pas valide
@@ -105,4 +105,36 @@ class ScalarResult extends Result {
       return ref_analyze::NULL;
     }
   }
+
+  function setInvalid(ScalarSchema $schema): int {
+    $this->present = true;
+    $this->available = true;
+    $this->null = false;
+    $this->valid = false;
+    $message = cl::get($schema->messages, "invalid");
+    self::replace_key($message, $schema->name);
+    $this->message = $message;
+    return ref_analyze::INVALID;
+  }
+
+  function setValid(): int {
+    $this->present = true;
+    $this->available = true;
+    $this->null = false;
+    $this->valid = true;
+    return ref_analyze::VALID;
+  }
+
+  function setNormalized(): int {
+    $this->present = true;
+    $this->available = true;
+    $this->null = false;
+    $this->valid = true;
+    $this->normalized = true;
+    return ref_analyze::NORMALIZED;
+  }
+
+  function throw(bool $throw): void {
+    if ($throw) throw new ValueException($this->message);
+  }
 }
diff --git a/src/schema/_scalar/ScalarValue.php b/src/schema/_scalar/ScalarValue.php
index 4d880fb..84c4355 100644
--- a/src/schema/_scalar/ScalarValue.php
+++ b/src/schema/_scalar/ScalarValue.php
@@ -3,15 +3,18 @@ namespace nur\sery\schema\_scalar;
 
 use nulib\ValueException;
 use nur\sery\schema\input\Input;
+use nur\sery\schema\ref\ref_analyze;
 use nur\sery\schema\Result;
+use nur\sery\schema\types;
 use nur\sery\schema\types\IType;
 use nur\sery\schema\Value;
 
 class ScalarValue extends Value {
-  function __construct(ScalarSchema $schema, &$dest=null, $key=null, bool $verifix=true) {
+  function __construct(ScalarSchema $schema, &$dest=null, $destKey=null, bool $defaultVerifix=true) {
     $this->schema = $schema;
+    $this->defaultVerifix = $defaultVerifix;
     $this->result = new ScalarResult();
-    $this->reset($dest, $key, $verifix);
+    $this->reset($dest, $destKey);
   }
 
   function isScalar(?ScalarValue &$scalar=null): bool { $scalar = $this; return true; }
@@ -22,24 +25,27 @@ class ScalarValue extends Value {
   /** @var Input source et destination de la valeur */
   protected $input;
 
-  /** @var string|int clé de la valeur dans le tableau destination */
+  /** @var string|int|null clé de la valeur dans le tableau destination */
   protected $destKey;
 
-  /** @var IType */
+  /** @var bool */
+  protected $defaultVerifix;
+
+  /** @var IType type de la valeur après analyse */
   protected $type;
 
   /** @var ?ScalarResult résultat de l'analyse de la valeur */
   protected $result;
 
-  function reset(&$dest, $destKey=null, bool $verifix=true): Value {
+  function reset(&$dest, $destKey=null, ?bool $verifix=null): Value {
     if ($dest instanceof Input) $input = $dest;
     else $input = new Input($dest);
     $this->input = $input;
     $this->destKey = $destKey;
-    $this->result = null;
-    #XXX résoudre les types ici?
+    $this->type = null;
+    $this->_analyze();
+    if ($verifix === null) $verifix = $this->defaultVerifix;
     if ($verifix) $this->verifix();
-    else $this->_analyze();
     return $this;
   }
 
@@ -59,42 +65,28 @@ class ScalarValue extends Value {
     $destKey = $this->destKey;
     $result = $this->result;
     $result->reset();
-    #XXX résoudre le type
-    if (!$input->isAvailable()) return $result->setUnavailable($schema);
+    if (!$input->isPresent($destKey)) return $result->setMissing($schema);
+    $haveType = false;
+    $firstType = null;
+    foreach ($schema->type as $name) {
+      $type = types::get($name);
+      if ($firstType === null) $firstType = $type;
+      if ($type->canAnalyze($input, $destKey)) {
+        $haveType = true;
+        $this->type = $type;
+        break;
+      }
+    }
+    if (!$haveType) $type = $this->type = $firstType;
+    if (!$type->isAvailable($input, $destKey)) return $result->setUnavailable($schema);
     $value = $input->get($destKey);
-    if ($value === null) return $result->setNull($schema);
-  }
-
-  function isPresent(): bool {
-    return $this->input->isPresent($this->destKey);
-  }
-
-  function isAvailable(): bool {
-    return $this->input->isAvailable($this->destKey);
-  }
-
-  function get($default=null) {
-    $destKey = $this->destKey;
-    $input = $this->input;
-    if ($input->isAvailable($destKey)) return $input->get($destKey);
-    else return $default;
-  }
-
-  function set($value, bool $verifix=true): Value {
-    $this->input->set($value, $this->destKey);
-    if ($verifix) $this->verifix();
-    return $this;
-  }
-
-  function getType(): IType {
-    if ($this->type === null) $this->type = $this->schema->getType($this->destKey);
-    return $this->type;
-  }
-
-  function isValid(): bool {
-  }
-
-  function isNormalized(): bool {
+    if ($type->isNull($value)) return $result->setNull($schema);
+    if ($type->isValid($value, $normalized)) {
+      if ($normalized) return $result->setNormalized();
+      else return $result->setValid();
+    }
+    if (is_string($value)) return ref_analyze::STRING;
+    else return $result->setInvalid($schema);
   }
 
   /**
@@ -102,26 +94,61 @@ class ScalarValue extends Value {
    *
    * si la valeur était déjà normalisée, retourner false.
    */
-  function verifix(bool $throw=true, ?Result &$result=null): bool {
+  function verifix(bool $throw=true): bool {
     $type = $this->getType();
-    $key = $this->destKey;
-    if ($key === null) $modified = $type->verifix($this->input, $throw, $result);
-    else $modified = $type->verifix($this->input[$key], $throw, $result);
-    $this->result = $result;
+    $destKey = $this->destKey;
+    $value = $this->input->get($destKey);
+    $modified = $type->verifix($value, $this->result);
+    if ($this->result->valid) $this->input->set($value, $destKey);
+    else $this->result->throw($throw);
     return $modified;
   }
 
-  function parse($value, bool $throw=true, ?Result &$result=null) {
-    $this->getType()->verifix($value, $throw, $result);
-    $this->set($value);
-    $this->result = $result;
-    return $value;
+  function getResult(): Result {
+    return $this->result;
   }
 
-  function format(?string $format=null): string {
-    $type = $this->getType();
-    $key = $this->destKey;
-    if ($key === null) return $type->format($this->input, $format);
-    else return $type->format($this->input[$key], $format);
+  function isPresent(): bool {
+    return $this->result->present;
+  }
+
+  function getType(): IType {
+    return $this->type;
+  }
+
+  function isAvailable(): bool {
+    return $this->result->available;
+  }
+
+  function isValid(): bool {
+    return $this->result->valid;
+  }
+
+  function isNormalized(): bool {
+    return $this->result->normalized;
+  }
+
+  function get($default=null) {
+    if ($this->result->available) return $this->input->get($this->destKey);
+    else return $default;
+  }
+
+  function set($value, ?bool $verifix=null): Value {
+    $this->input->set($value, $this->destKey);
+    $this->_analyze();
+    if ($verifix === null) $verifix = $this->defaultVerifix;
+    if ($verifix) $this->verifix();
+    return $this;
+  }
+
+  function unset(?bool $verifix=null): void {
+    $this->input->unset($this->destKey);
+    $this->_analyze();
+    if ($verifix === null) $verifix = $this->defaultVerifix;
+    if ($verifix) $this->verifix();
+  }
+
+  function format($format=null): string {
+    return $this->getType()->format($this->input->get($this->destKey), $format);
   }
 }
diff --git a/src/schema/input/Input.php b/src/schema/input/Input.php
index bbfb540..2012a55 100644
--- a/src/schema/input/Input.php
+++ b/src/schema/input/Input.php
@@ -56,4 +56,9 @@ class Input {
     if ($key === null) $this->dest = $value;
     else $this->dest[$key] = $value;
   }
+
+  function unset($key=null): void {
+    if ($key === null) $this->dest = null;
+    else unset($this->dest[$key]);
+  }
 }
diff --git a/src/schema/ref/ref_types.php b/src/schema/ref/ref_types.php
index f7e5198..710fee0 100644
--- a/src/schema/ref/ref_types.php
+++ b/src/schema/ref/ref_types.php
@@ -3,8 +3,8 @@ namespace nur\sery\schema\ref;
 
 class ref_types {
   const ALIASES = [
-    "key" => "string|int",
-    "pkey" => "string|int|array",
-    "content" => "string|array",
+    "boolean" => "bool",
+    "integer" => "int",
+    "flt" => "float", "double" => "float", "dbl" => "float",
   ];
 }
diff --git a/src/schema/types/IType.php b/src/schema/types/IType.php
index cb59359..73dc77f 100644
--- a/src/schema/types/IType.php
+++ b/src/schema/types/IType.php
@@ -1,13 +1,22 @@
 <?php
 namespace nur\sery\schema\types;
 
+use nur\sery\schema\input\Input;
 use nur\sery\schema\Result;
 
 /**
  * Interface IType: un type de données
  */
 interface IType {
-  function verifix(&$value, bool $throw, ?Result &$result);
+  function canAnalyze(Input $input, $desyKey): bool;
+
+  function isAvailable(Input $input, $desyKey): bool;
+
+  function isNull($value): bool;
+
+  function isValid($value, ?bool &$normalized=null): bool;
+
+  function verifix(&$value, ?Result &$result): bool;
 
   function format($value, $format=null);
 }
diff --git a/src/schema/types/Registry.php b/src/schema/types/Registry.php
index 9feec8c..cb50fa8 100644
--- a/src/schema/types/Registry.php
+++ b/src/schema/types/Registry.php
@@ -10,6 +10,10 @@ class Registry {
     "double" => tfloat::class, "dbl" => tfloat::class,
     "array" => tarray::class,
     "callable" => tcallable::class,
+    # types spéciaux
+    "key" => tkey::class,
+    "pkey" => tpkey::class,
+    "content" => tcontent::class,
   ];
 
   function __construct() {
diff --git a/src/schema/types/tarray.php b/src/schema/types/tarray.php
index b6f1c10..a9fff99 100644
--- a/src/schema/types/tarray.php
+++ b/src/schema/types/tarray.php
@@ -3,7 +3,7 @@ namespace nur\sery\schema\types;
 
 use nulib\cl;
 
-class tarray implements IType {
+abstract class tarray implements IType {
   static function ensure_array(&$array): void {
     if (!is_array($array)) $array = cl::with($array);
   }
diff --git a/src/schema/types/tbool.php b/src/schema/types/tbool.php
index 83cb0ba..19fb060 100644
--- a/src/schema/types/tbool.php
+++ b/src/schema/types/tbool.php
@@ -1,7 +1,7 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tbool implements IType {
+abstract class tbool implements IType {
   static function ensure_bool(&$bool): void {
     if (!is_bool($bool)) $bool = boolval($bool);
   }
diff --git a/src/schema/types/tcallable.php b/src/schema/types/tcallable.php
index c5a185c..ab6c58d 100644
--- a/src/schema/types/tcallable.php
+++ b/src/schema/types/tcallable.php
@@ -3,9 +3,9 @@ namespace nur\sery\schema\types;
 
 use nulib\ValueException;
 
-class tcallable implements IType {
+abstract class tcallable implements IType {
   static function ensure_callable(&$callable): void {
-    if (!is_callable($callable)) throw ValueException::unexpected_type($callable, "callable");
+    if (!is_callable($callable)) throw ValueException::invalid_type($callable, "callable");
   }
 
   static function ensure_ncallable(&$callable): void {
diff --git a/src/schema/types/tcontent.php b/src/schema/types/tcontent.php
index bf464cf..1135e8e 100644
--- a/src/schema/types/tcontent.php
+++ b/src/schema/types/tcontent.php
@@ -1,7 +1,7 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tcontent implements IType {
+abstract class tcontent implements IType {
   static function ensure_content(&$content): void {
     if (!is_string($content) && !is_array($content)) $content = strval($content);
   }
diff --git a/src/schema/types/tfloat.php b/src/schema/types/tfloat.php
index 2de8584..6c587a5 100644
--- a/src/schema/types/tfloat.php
+++ b/src/schema/types/tfloat.php
@@ -1,5 +1,5 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tfloat implements IType {
+abstract class tfloat implements IType {
 }
diff --git a/src/schema/types/tint.php b/src/schema/types/tint.php
index 384a36f..e1cd23d 100644
--- a/src/schema/types/tint.php
+++ b/src/schema/types/tint.php
@@ -1,5 +1,5 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tint implements IType {
+abstract class tint implements IType {
 }
diff --git a/src/schema/types/tkey.php b/src/schema/types/tkey.php
index d7b88b0..731beb2 100644
--- a/src/schema/types/tkey.php
+++ b/src/schema/types/tkey.php
@@ -1,7 +1,7 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tkey implements IType {
+abstract class tkey implements IType {
   static function ensure_key(&$key): void {
     if (!is_string($key) && !is_int($key)) $key = strval($key);
   }
diff --git a/src/schema/types/tpkey.php b/src/schema/types/tpkey.php
index 8486fc0..4039691 100644
--- a/src/schema/types/tpkey.php
+++ b/src/schema/types/tpkey.php
@@ -1,7 +1,7 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tpkey implements IType {
+abstract class tpkey implements IType {
   static function ensure_pkey(&$pkey): void {
     if (!is_string($pkey) && !is_int($pkey) && !is_array($pkey)) $pkey = strval($pkey);
     if (is_array($pkey)) {
diff --git a/src/schema/types/tstring.php b/src/schema/types/tstring.php
index 95a4132..bba5819 100644
--- a/src/schema/types/tstring.php
+++ b/src/schema/types/tstring.php
@@ -1,7 +1,7 @@
 <?php
 namespace nur\sery\schema\types;
 
-class tstring implements IType {
+abstract class tstring implements IType {
   static function ensure_string(&$string): void {
     if (!is_string($string)) $string = strval($string);
   }
diff --git a/tests/schema/schemas/ScalarSchemaTest.php b/tests/schema/_scalar/ScalarSchemaTest.php
similarity index 86%
rename from tests/schema/schemas/ScalarSchemaTest.php
rename to tests/schema/_scalar/ScalarSchemaTest.php
index d3afa33..342510a 100644
--- a/tests/schema/schemas/ScalarSchemaTest.php
+++ b/tests/schema/_scalar/ScalarSchemaTest.php
@@ -1,9 +1,8 @@
 <?php
-namespace nur\sery\schema\schemas;
+namespace nur\sery\schema\_scalar;
 
 use nulib\tests\TestCase;
 use nur\sery\schema\SchemaException;
-use nur\sery\schema\_scalar\ScalarSchema;
 
 class ScalarSchemaTest extends TestCase {
   const NULL_SCHEMA = [
@@ -55,11 +54,10 @@ class ScalarSchemaTest extends TestCase {
     self::assertSame($nstring, ScalarSchema::normalize([["string", null]]));
 
     $key = self::schema(["type" => ["string", "int"], "nullable" => false]);
-    self::assertSame($key, ScalarSchema::normalize("key"));
-    self::assertSame($key, ScalarSchema::normalize("key|string"));
+    self::assertSame($key, ScalarSchema::normalize("string|int"));
 
     $nkey = self::schema(["type" => ["string", "int"], "nullable" => true]);
-    self::assertSame($nkey, ScalarSchema::normalize("?key"));
-    self::assertSame($nkey, ScalarSchema::normalize("?key|string"));
+    self::assertSame($nkey, ScalarSchema::normalize("?string|int"));
+    self::assertSame($nkey, ScalarSchema::normalize("string|?int"));
   }
 }
diff --git a/tests/schema/schemaTest.php b/tests/schema/schemaTest.php
index f70e479..cd6bc16 100644
--- a/tests/schema/schemaTest.php
+++ b/tests/schema/schemaTest.php
@@ -9,15 +9,15 @@ class schemaTest extends TestCase {
   function testInt() {
     /** @var ScalarValue $intv */
     Schema::nv($intv, $int, null, $schema, "int");
-    $f = function($value) use($intv) {
+    $intvSetter = function($value) use($intv) {
       return function() use($intv, $value) {
         $intv->set($value);
       };
     };
 
-    self::assertException(Exception::class, $f(null));
-    self::assertException(Exception::class, $f(""));
-    self::assertException(Exception::class, $f(" "));
+    self::assertException(Exception::class, $intvSetter(null));
+    self::assertException(Exception::class, $intvSetter(""));
+    self::assertException(Exception::class, $intvSetter(" "));
 
     $intv->set(12);
     self::assertSame(12, $intv->get());
@@ -31,17 +31,17 @@ class schemaTest extends TestCase {
     $intv->set(" 12 ");
     self::assertSame(12, $intv->get());
 
-    self::assertException(Exception::class, $f(true));
-    self::assertException(Exception::class, $f(false));
-    self::assertException(Exception::class, $f("a"));
-    self::assertException(Exception::class, $f([]));
-    self::assertException(Exception::class, $f(["a"]));
+    self::assertException(Exception::class, $intvSetter(true));
+    self::assertException(Exception::class, $intvSetter(false));
+    self::assertException(Exception::class, $intvSetter("a"));
+    self::assertException(Exception::class, $intvSetter([]));
+    self::assertException(Exception::class, $intvSetter(["a"]));
   }
 
   function testNint() {
     /** @var ScalarValue $intv */
     Schema::nv($intv, $int, null, $schema, "?int");
-    $f = function($value) use($intv) {
+    $intvSetter = function($value) use($intv) {
       return function() use($intv, $value) {
         $intv->set($value);
       };
@@ -74,11 +74,11 @@ class schemaTest extends TestCase {
     $intv->set(" 12 ");
     self::assertSame(12, $int);
 
-    self::assertException(Exception::class, $f(true));
-    self::assertException(Exception::class, $f(false));
-    self::assertException(Exception::class, $f("a"));
-    self::assertException(Exception::class, $f([]));
-    self::assertException(Exception::class, $f(["a"]));
+    self::assertException(Exception::class, $intvSetter(true));
+    self::assertException(Exception::class, $intvSetter(false));
+    self::assertException(Exception::class, $intvSetter("a"));
+    self::assertException(Exception::class, $intvSetter([]));
+    self::assertException(Exception::class, $intvSetter(["a"]));
   }
 
   function testUnionTypes() {