diff --git a/src/Psalm/Internal/Codebase/Analyzer.php b/src/Psalm/Internal/Codebase/Analyzer.php
index 0222c49f5..e45f1b0a8 100644
--- a/src/Psalm/Internal/Codebase/Analyzer.php
+++ b/src/Psalm/Internal/Codebase/Analyzer.php
@@ -86,7 +86,7 @@ class Analyzer
     /**
      * Used to store counts of mixed vs non-mixed variables
      *
-     * @var array<string, array{0: int, 1: int}
+     * @var array<string, array{0: int, 1: int}>
      */
     private $mixed_counts = [];
 
diff --git a/src/Psalm/Internal/Type/ParseTree.php b/src/Psalm/Internal/Type/ParseTree.php
index 2986fde36..e5ff42bbf 100644
--- a/src/Psalm/Internal/Type/ParseTree.php
+++ b/src/Psalm/Internal/Type/ParseTree.php
@@ -531,6 +531,16 @@ class ParseTree
             }
         }
 
+        if ($current_leaf !== $parse_tree
+            && ($parse_tree instanceof ParseTree\GenericTree
+                || $parse_tree instanceof ParseTree\CallableTree
+                || $parse_tree instanceof ParseTree\ObjectLikeTree)
+        ) {
+            throw new TypeParseTreeException(
+                'Unterminated bracket'
+            );
+        }
+
         return $parse_tree;
     }
 
diff --git a/tests/CodebaseTest.php b/tests/CodebaseTest.php
index bd070e3bd..d506cde64 100644
--- a/tests/CodebaseTest.php
+++ b/tests/CodebaseTest.php
@@ -43,7 +43,7 @@ class CodebaseTest extends TestCase
         );
     }
 
-    /** @return iterable<int,array{string,string,bool} */
+    /** @return iterable<int,array{string,string,bool}> */
     public function typeContainments()
     {
         yield ['int', 'int|string', true];
@@ -74,7 +74,7 @@ class CodebaseTest extends TestCase
         );
     }
 
-    /** @return iterable<int,array{string,string,bool} */
+    /** @return iterable<int,array{string,string,bool}> */
     public function typeIntersections()
     {
         yield ['int', 'int|string', true];
@@ -114,11 +114,11 @@ class CodebaseTest extends TestCase
         );
     }
 
-    /** @return iterable<int,array{string,array{string,string}} */
+    /** @return iterable<int,array{string,array{string,string}}> */
     public function iterableParams()
     {
         yield ['iterable<int,string>', ['int', 'string']];
-        yield ['iterable<int|string,bool|float', ['int|string', 'bool|float']];
+        yield ['iterable<int|string,bool|float>', ['int|string', 'bool|float']];
     }
 
     /**
diff --git a/tests/TypeParseTest.php b/tests/TypeParseTest.php
index 291a63296..0d8fa091a 100644
--- a/tests/TypeParseTest.php
+++ b/tests/TypeParseTest.php
@@ -100,11 +100,18 @@ class TypeParseTest extends TestCase
     /**
      * @return void
      */
-    public function testArray()
+    public function testArrayWithClosingBracket()
     {
         $this->assertSame('array<int, int>', (string) Type::parseString('array<int, int>'));
-        $this->assertSame('array<int, string>', (string) Type::parseString('array<int, string>'));
-        $this->assertSame('array<int, static>', (string) Type::parseString('array<int, static>'));
+    }
+
+    /**
+     * @return void
+     */
+    public function testArrayWithoutClosingBracket()
+    {
+        $this->expectException(\Psalm\Exception\TypeParseTreeException::class);
+        Type::parseString('array<int, int');
     }
 
     /**
@@ -317,6 +324,15 @@ class TypeParseTest extends TestCase
         $this->assertSame('array{a:int, b:string}', (string) Type::parseString('array{a:int, b:string}'));
     }
 
+    /**
+     * @return void
+     */
+    public function testObjectLikeWithoutClosingBracket()
+    {
+        $this->expectException(\Psalm\Exception\TypeParseTreeException::class);
+        Type::parseString('array{a:int, b:string');
+    }
+
     /**
      * @return void
      */
@@ -396,6 +412,15 @@ class TypeParseTest extends TestCase
         );
     }
 
+    /**
+     * @return void
+     */
+    public function testCallableWithoutClosingBracket()
+    {
+        $this->expectException(\Psalm\Exception\TypeParseTreeException::class);
+        Type::parseString('callable(int, string');
+    }
+
     /**
      * @return void
      */
diff --git a/tests/UnusedVariableTest.php b/tests/UnusedVariableTest.php
index 1c4dabda4..5ddf86ffa 100644
--- a/tests/UnusedVariableTest.php
+++ b/tests/UnusedVariableTest.php
@@ -100,7 +100,7 @@ class UnusedVariableTest extends TestCase
     }
 
     /**
-     * @return array<string, array{string,error_levels?:string[]}
+     * @return array<string, array{string,error_levels?:string[]}>
      */
     public function providerValidCodeParse()
     {