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<h1>N4JS Language Specification</h1>
<div class="details">
<span id="author" class="author">2019-08-08 13:15:33 CEST</span><br>
<span id="revnumber">version 0.9</span>
</div>
<div id="toc" class="toc2">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="introduction.html#_introduction">1. Introduction</a>
<ul class="sectlevel2">
<li><a href="introduction.html#_notation">1.1. Notation</a>
<ul class="sectlevel3">
<li><a href="introduction.html#_grammar-notation">1.1.1. Grammar Notation</a></li>
<li><a href="introduction.html#_type-judgments-and-rules-and-constraints-notation">1.1.2. Type Judgments and Rules and Constraints Notation</a>
<ul class="sectlevel4">
<li><a href="introduction.html#_typing-rules-and-judgments">1.1.2.1. Typing Rules and Judgments</a></li>
<li><a href="introduction.html#_types-of-an-element">1.1.2.2. Types of an Element</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="introduction.html#_auxiliary-functions">1.2. Auxiliary Functions</a>
<ul class="sectlevel3">
<li><a href="introduction.html#_binding">1.2.1. Binding</a></li>
<li><a href="introduction.html#_merging-types">1.2.2. Merging Types</a>
<ul class="sectlevel4">
<li><a href="introduction.html#_logic-formulas">1.2.2.1. Logic Formulas</a></li>
</ul>
</li>
<li><a href="introduction.html#_symbols-and-font-convention">1.2.3. Symbols and Font Convention</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="grammar.html#_grammar">2. Grammar</a>
<ul class="sectlevel2">
<li><a href="grammar.html#_lexical-conventions">2.1. Lexical Conventions</a>
<ul class="sectlevel3">
<li><a href="grammar.html#_identifier-names-and-identifiers">2.1.1. Identifier Names and Identifiers</a></li>
<li><a href="grammar.html#_this-keyword">2.1.2. This Keyword</a></li>
<li><a href="grammar.html#_regular-expression-literals">2.1.3. Regular Expression Literals</a></li>
<li><a href="grammar.html#_automatic-semicolon-insertion">2.1.4. Automatic Semicolon Insertion</a></li>
<li><a href="grammar.html#_jsdoc">2.1.5. JSDoc</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="names.html#_names">3. Names</a>
<ul class="sectlevel2">
<li><a href="names.html#_access-control">3.1. Access Control</a></li>
<li><a href="names.html#_accessibility-of-types-top-level-variables-and-function-declarations">3.2. Accessibility of Types, Top-Level Variables and Function Declarations</a>
<ul class="sectlevel3">
<li><a href="names.html#_accessibility-of-members">3.2.1. Accessibility of Members</a></li>
<li><a href="names.html#_valid-names">3.2.2. Valid Names</a></li>
<li><a href="names.html#_qualified-names">3.2.3. Qualified Names</a></li>
<li><a href="names.html#_name-duplicates">3.2.4. Name Duplicates</a>
<ul class="sectlevel4">
<li><a href="names.html#_lexical-environment">3.2.4.1. Lexical Environment</a></li>
<li><a href="names.html#_duplicates-and-shadowing">3.2.4.2. Duplicates and Shadowing</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li><a href="types.html#_types">4. Types</a>
<ul class="sectlevel2">
<li><a href="types.html#_overview">4.1. Overview</a></li>
<li><a href="types.html#_type-expressions">4.2. Type Expressions</a>
<ul class="sectlevel3">
<li><a href="types.html#_syntax">4.2.1. Syntax</a></li>
<li><a href="types.html#_properties">4.2.2. Properties</a></li>
<li><a href="types.html#_semantics">4.2.3. Semantics</a></li>
</ul>
</li>
<li><a href="types.html#_type-inference">4.3. Type Inference</a></li>
<li><a href="types.html#_generic-and-parameterized-types">4.4. Generic and Parameterized Types</a>
<ul class="sectlevel3">
<li><a href="types.html#_generic-types">4.4.1. Generic Types</a></li>
<li><a href="types.html#_type-variables">4.4.2. Type Variables</a></li>
<li><a href="types.html#_parameterized-types">4.4.3. Parameterized Types</a></li>
</ul>
</li>
<li><a href="types.html#_primitive-ecmascript-types">4.5. Primitive ECMAScript Types</a>
<ul class="sectlevel3">
<li><a href="types.html#_undefined-type">4.5.1. Undefined Type</a></li>
<li><a href="types.html#_null-type">4.5.2. Null Type</a></li>
<li><a href="types.html#_primitive-boolean-type">4.5.3. Primitive Boolean Type</a></li>
<li><a href="types.html#_primitive-string-type">4.5.4. Primitive String Type</a></li>
<li><a href="types.html#_primitive-number-type">4.5.5. Primitive Number Type</a></li>
<li><a href="types.html#_primitive-type-int">4.5.6. Primitive Type int</a></li>
<li><a href="types.html#_primitive-symbol-type">4.5.7. Primitive Symbol Type</a></li>
</ul>
</li>
<li><a href="types.html#_primitive-n4js-types">4.6. Primitive N4JS Types</a>
<ul class="sectlevel3">
<li><a href="types.html#_any-type">4.6.1. Any Type</a>
<ul class="sectlevel4">
<li><a href="types.html#any-type-semantics">4.6.1.1. Semantics</a></li>
<li><a href="types.html#any-type-type-inference">4.6.1.2. Type Inference</a>
<ul class="sectlevel5">
<li><a href="types.html#_default-type-of-variables">4.6.1.2.1. Default Type of Variables</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="types.html#_void-type">4.6.2. Void Type</a>
<ul class="sectlevel4">
<li><a href="types.html#void-type-semantics">4.6.2.1. Semantics</a></li>
</ul>
</li>
<li><a href="types.html#_unknown-type">4.6.3. Unknown Type</a></li>
<li><a href="types.html#_primitive-pathselector-and-i18nkey">4.6.4. Primitive Pathselector and I18nKey</a>
<ul class="sectlevel4">
<li><a href="types.html#pathselector-semantics">4.6.4.1. Semantics</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="types.html#_built-in-ecmascript-object-types">4.7. Built-in ECMAScript Object Types</a>
<ul class="sectlevel3">
<li><a href="types.html#ECMAScript-objects-semantics">4.7.1. Semantics</a></li>
<li><a href="types.html#_object-type">4.7.2. Object Type</a></li>
<li><a href="types.html#_function-object-type">4.7.3. Function-Object-Type</a></li>
<li><a href="types.html#_array-object-type">4.7.4. Array Object Type</a></li>
<li><a href="types.html#_string-object-type">4.7.5. String Object Type</a></li>
<li><a href="types.html#_boolean-object-type">4.7.6. Boolean Object Type</a></li>
<li><a href="types.html#_number-object-type">4.7.7. Number Object Type</a></li>
<li><a href="types.html#_global-object-type">4.7.8. Global Object Type</a></li>
<li><a href="types.html#_symbol">4.7.9. Symbol</a></li>
<li><a href="types.html#_promise">4.7.10. Promise</a></li>
<li><a href="types.html#_iterator-interface">4.7.11. Iterator Interface</a></li>
<li><a href="types.html#_iterable-interface">4.7.12. Iterable Interface</a></li>
</ul>
</li>
<li><a href="types.html#_built-in-n4js-types">4.8. Built-In N4JS Types</a>
<ul class="sectlevel3">
<li><a href="types.html#_n4object">4.8.1. N4Object</a>
<ul class="sectlevel4">
<li><a href="types.html#N4Object-semantics">4.8.1.1. Semantics</a></li>
</ul>
</li>
<li><a href="types.html#_n4class">4.8.2. N4Class</a></li>
<li><a href="types.html#IterableN">4.8.3. IterableN</a></li>
</ul>
</li>
<li><a href="types.html#_type-modifiers">4.9. Type Modifiers</a>
<ul class="sectlevel3">
<li><a href="types.html#Type_Modifiers_Dynamic">4.9.1. Dynamic</a></li>
<li><a href="types.html#_optional-return-types">4.9.2. Optional Return Types</a></li>
</ul>
</li>
<li><a href="types.html#_union-and-intersection-type-composed-types">4.10. Union and Intersection Type (Composed Types)</a>
<ul class="sectlevel3">
<li><a href="types.html#_union-type">4.10.1. Union Type</a>
<ul class="sectlevel4">
<li><a href="types.html#union-type-syntax">4.10.1.1. Syntax</a></li>
<li><a href="types.html#union-type-semantics">4.10.1.2. Semantics</a></li>
<li><a href="types.html#_warnings">4.10.1.3. Warnings</a></li>
</ul>
</li>
<li><a href="types.html#_intersection-type">4.10.2. Intersection Type</a>
<ul class="sectlevel4">
<li><a href="types.html#intersection-type-syntax">4.10.2.1. Syntax</a></li>
<li><a href="types.html#intersection-type-semantics">4.10.2.2. Semantics</a></li>
<li><a href="types.html#_warnings-2">4.10.2.3. Warnings</a></li>
</ul>
</li>
<li><a href="types.html#_composed-types-in-wildcards">4.10.3. Composed Types in Wildcards</a></li>
<li><a href="types.html#_property-access-for-composed-types">4.10.4. Property Access for Composed Types</a>
<ul class="sectlevel4">
<li><a href="types.html#_properties-of-union-type">4.10.4.1. Properties of Union Type</a>
<ul class="sectlevel5">
<li><a href="types.html#_remarks-on-union-type-s-members">4.10.4.1.1. Remarks on union type’s members:</a></li>
</ul>
</li>
<li><a href="types.html#_properties-of-intersection-type">4.10.4.2. Properties of Intersection Type</a>
<ul class="sectlevel5">
<li><a href="types.html#_remarks-on-intersection-type-s-methods">4.10.4.2.1. Remarks on intersection type’s methods:</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li><a href="types.html#_constructor-and-classifier-type">4.11. Constructor and Classifier Type</a>
<ul class="sectlevel3">
<li><a href="types.html#_syntax-3">4.11.1. Syntax</a></li>
<li><a href="types.html#_semantics-2">4.11.2. Semantics</a></li>
<li><a href="types.html#_constructors-and-prototypes-in-ecmascript-2015">4.11.3. Constructors and Prototypes in ECMAScript 2015</a></li>
</ul>
</li>
<li><a href="types.html#_this-type">4.12. This Type</a>
<ul class="sectlevel3">
<li><a href="types.html#this-type-syntax">4.12.1. Syntax</a></li>
<li><a href="types.html#this-keyword-semantics">4.12.2. Semantics</a></li>
</ul>
</li>
<li><a href="types.html#_enums">4.13. Enums</a>
<ul class="sectlevel3">
<li><a href="types.html#_enums-n4js">4.13.1. Enums (N4JS)</a>
<ul class="sectlevel4">
<li><a href="types.html#enums-syntax">4.13.1.1. Syntax</a></li>
<li><a href="types.html#enums-semantics">4.13.1.2. Semantics</a></li>
</ul>
</li>
<li><a href="types.html#_string-based-enums">4.13.2. String-Based Enums</a></li>
</ul>
</li>
<li><a href="types.html#_short-hand-syntax">4.14. Short-Hand Syntax</a>
<ul class="sectlevel3">
<li><a href="types.html#_array-short-hand-syntax">4.14.1. Array Short-Hand Syntax</a></li>
<li><a href="types.html#_iterablen-short-hand-syntax">4.14.2. IterableN Short-Hand Syntax</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="classifiers.html#_classifiers">5. Classifiers</a>
<ul class="sectlevel2">
<li><a href="classifiers.html#_n4js-specific-classifiers">5.1. N4JS Specific Classifiers</a>
<ul class="sectlevel3">
<li><a href="classifiers.html#_properties-2">5.1.1. Properties</a></li>
<li><a href="classifiers.html#_common-semantics-of-classifiers">5.1.2. Common Semantics of Classifiers</a></li>
<li><a href="classifiers.html#_classes">5.1.3. Classes</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_definition-of-classes">5.1.3.1. Definition of Classes</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#class-syntax">5.1.3.1.1. Syntax</a></li>
<li><a href="classifiers.html#class-properties">5.1.3.1.2. Properties</a></li>
<li><a href="classifiers.html#class-type-inference">5.1.3.1.3. Type Inference</a></li>
</ul>
</li>
<li><a href="classifiers.html#class-semantics">5.1.3.2. Semantics</a></li>
<li><a href="classifiers.html#_final-modifier">5.1.3.3. Final Modifier</a></li>
<li><a href="classifiers.html#_abstract-classes">5.1.3.4. Abstract Classes</a></li>
<li><a href="classifiers.html#_non-instantiable-classes">5.1.3.5. Non-Instantiable Classes</a></li>
<li><a href="classifiers.html#_superclass">5.1.3.6. Superclass</a></li>
</ul>
</li>
<li><a href="classifiers.html#_interfaces">5.1.4. Interfaces</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_definition-of-interfaces">5.1.4.1. Definition of Interfaces</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#interfaces-syntax">5.1.4.1.1. Syntax</a></li>
<li><a href="classifiers.html#interfaces-properties">5.1.4.1.2. Properties</a></li>
<li><a href="classifiers.html#interfaces-type-inference">5.1.4.1.3. Type Inference</a></li>
<li><a href="classifiers.html#interfaces-semantics">5.1.4.1.4. Semantics</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="classifiers.html#_generic-classifiers">5.1.5. Generic Classifiers</a></li>
<li><a href="classifiers.html#sec:definition-site-variance">5.1.6. Definition-Site Variance</a></li>
</ul>
</li>
<li><a href="classifiers.html#_members">5.2. Members</a>
<ul class="sectlevel3">
<li><a href="classifiers.html#_syntax-4">5.2.1. Syntax</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_properties-3">5.2.1.1. Properties</a></li>
</ul>
</li>
<li><a href="classifiers.html#_semantics-3">5.2.2. Semantics</a></li>
<li><a href="classifiers.html#_methods">5.2.3. Methods</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_syntax-5">5.2.3.1. Syntax</a></li>
<li><a href="classifiers.html#_properties-4">5.2.3.2. Properties</a></li>
<li><a href="classifiers.html#_semantics-4">5.2.3.3. Semantics</a></li>
<li><a href="classifiers.html#_final-methods">5.2.3.4. Final Methods</a></li>
<li><a href="classifiers.html#_abstract-methods">5.2.3.5. Abstract Methods</a></li>
<li><a href="classifiers.html#_generic-methods">5.2.3.6. Generic Methods</a></li>
</ul>
</li>
<li><a href="classifiers.html#_default-methods-in-interfaces">5.2.4. Default Methods in Interfaces</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_asynchronous-methods">5.2.4.1. Asynchronous Methods</a></li>
</ul>
</li>
<li><a href="classifiers.html#_constructors">5.2.5. Constructors</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_structural-this-type-in-constructor">5.2.5.1. Structural This Type in Constructor</a></li>
<li><a href="classifiers.html#spec-constructor">5.2.5.2. @Spec Constructor</a></li>
<li><a href="classifiers.html#_callable-constructors">5.2.5.3. Callable Constructors</a></li>
<li><a href="classifiers.html#_covariant-constructors">5.2.5.4. Covariant Constructors</a></li>
</ul>
</li>
<li><a href="classifiers.html#_data-fields">5.2.6. Data Fields</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#data-fields-syntax">5.2.6.1. Syntax</a></li>
<li><a href="classifiers.html#data-fields-properties">5.2.6.2. Properties</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#data-fields-semantics">5.2.6.2.1. Semantics</a></li>
<li><a href="classifiers.html#data-fields-type-inference">5.2.6.2.2. Type Inference</a></li>
</ul>
</li>
<li><a href="classifiers.html#_assignment-modifiers">5.2.6.3. Assignment Modifiers</a></li>
<li><a href="classifiers.html#_field-accessors-getter-setter">5.2.6.4. Field Accessors (Getter/Setter)</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#field-acessors-syntax">5.2.6.4.1. Syntax</a></li>
<li><a href="classifiers.html#field-acessors-properties">5.2.6.4.2. Properties</a></li>
<li><a href="classifiers.html#field-accessors-semantics">5.2.6.4.3. Semantics</a></li>
</ul>
</li>
<li><a href="classifiers.html#optional-fields">5.2.6.5. Optional Fields</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#_syntax-6">5.2.6.5.1. Syntax</a></li>
<li><a href="classifiers.html#_semantics-5">5.2.6.5.2. Semantics</a></li>
<li><a href="classifiers.html#_background">5.2.6.5.3. Background</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="classifiers.html#_static-members">5.2.7. Static Members</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_access-from-and-to-static-members">5.2.7.1. Access From and To Static Members</a></li>
<li><a href="classifiers.html#_generic-static-methods">5.2.7.2. Generic static methods</a></li>
<li><a href="classifiers.html#_static-members-of-interfaces">5.2.7.3. Static Members of Interfaces</a></li>
</ul>
</li>
<li><a href="classifiers.html#_redefinition-of-members">5.2.8. Redefinition of Members</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_overriding-of-members">5.2.8.1. Overriding of Members</a></li>
<li><a href="classifiers.html#_implementation-of-members">5.2.8.2. Implementation of Members</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#_member-consumption">5.2.8.2.1. Member Consumption</a></li>
<li><a href="classifiers.html#_member-implementation">5.2.8.2.2. Member Implementation</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li><a href="classifiers.html#_structural-typing">5.3. Structural Typing</a>
<ul class="sectlevel3">
<li><a href="classifiers.html#_syntax-7">5.3.1. Syntax</a></li>
<li><a href="classifiers.html#_definition-site-structural-typing">5.3.2. Definition Site Structural Typing</a></li>
<li><a href="classifiers.html#_use-site-structural-typing">5.3.3. Use-Site Structural Typing</a></li>
<li><a href="classifiers.html#structural-readWriteInit-field-typing">5.3.4. Structural Read-only, Write-only and Initializer Field Typing</a></li>
<li><a href="classifiers.html#_public-setter-annotated-with-code-providesinitializer-code">5.3.5. Public Setter Annotated With <code>ProvidesInitializer</code></a></li>
<li><a href="classifiers.html#_structural-types-with-optional-fields">5.3.6. Structural Types With Optional Fields</a></li>
<li><a href="classifiers.html#_structural-types-with-access-modifier">5.3.7. Structural Types With Access Modifier</a></li>
<li><a href="classifiers.html#_structural-types-with-additional-members">5.3.8. Structural Types With Additional Members</a>
<ul class="sectlevel4">
<li><a href="classifiers.html#_syntax-8">5.3.8.1. Syntax</a>
<ul class="sectlevel5">
<li><a href="classifiers.html#_semantics-6">5.3.8.1.1. Semantics</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li><a href="functions.html#_functions">6. Functions</a>
<ul class="sectlevel2">
<li><a href="functions.html#_function-type">6.1. Function Type</a>
<ul class="sectlevel3">
<li><a href="functions.html#_properties-5">6.1.1. Properties</a></li>
<li><a href="functions.html#function-type-inference">6.1.2. Type Inference</a></li>
<li><a href="functions.html#_autoboxing-of-function-type">6.1.3. Autoboxing of Function Type</a></li>
<li><a href="functions.html#_arguments-object">6.1.4. Arguments Object</a></li>
</ul>
</li>
<li><a href="functions.html#_ecmascript-5-function-definition">6.2. ECMAScript 5 Function Definition</a>
<ul class="sectlevel3">
<li><a href="functions.html#_function-declaration">6.2.1. Function Declaration</a>
<ul class="sectlevel4">
<li><a href="functions.html#_syntax-9">6.2.1.1. Syntax</a></li>
<li><a href="functions.html#_semantics-8">6.2.1.2. Semantics</a></li>
</ul>
</li>
<li><a href="functions.html#_function-expression">6.2.2. Function Expression</a>
<ul class="sectlevel4">
<li><a href="functions.html#function-expression-syntax">6.2.2.1. Syntax</a></li>
<li><a href="functions.html#_semantics-and-type-inference">6.2.2.2. Semantics and Type Inference</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="functions.html#_ecmascript-2015-function-definition">6.3. ECMAScript 2015 Function Definition</a>
<ul class="sectlevel3">
<li><a href="functions.html#_formal-parameters">6.3.1. Formal Parameters</a>
<ul class="sectlevel4">
<li><a href="functions.html#Type_Modifiers_Optional">6.3.1.1. Optional Parameters</a></li>
<li><a href="functions.html#Type_Modifiers_Default">6.3.1.2. Default Parameters</a></li>
<li><a href="functions.html#Type_Modifiers_Variadic">6.3.1.3. Variadic</a></li>
</ul>
</li>
<li><a href="functions.html#_generator-functions">6.3.2. Generator Functions</a>
<ul class="sectlevel4">
<li><a href="functions.html#generator-functions-syntax">6.3.2.1. Syntax</a></li>
<li><a href="functions.html#generator-functions-semantics">6.3.2.2. Semantics</a></li>
<li><a href="functions.html#_generator-arrow-functions">6.3.2.3. Generator Arrow Functions</a></li>
</ul>
</li>
<li><a href="functions.html#_arrow-function-expression">6.3.3. Arrow Function Expression</a>
<ul class="sectlevel4">
<li><a href="functions.html#arrow-function-expression-syntax">6.3.3.1. Syntax</a></li>
<li><a href="functions.html#arrow-function-expression-semantics-and-type-inference">6.3.3.2. Semantics and Type Inference</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="functions.html#_ecmascript-proposals-function-definition">6.4. ECMAScript Proposals Function Definition</a>
<ul class="sectlevel3">
<li><a href="functions.html#_asynchronous-functions">6.4.1. Asynchronous Functions</a>
<ul class="sectlevel4">
<li><a href="functions.html#asynchronous-functions-syntax">6.4.1.1. Syntax</a></li>
<li><a href="functions.html#asynchronous-functions-semantics">6.4.1.2. Semantics</a></li>
<li><a href="functions.html#_asynchronous-arrow-functions">6.4.1.3. Asynchronous Arrow Functions</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="functions.html#_n4js-extended-function-definition">6.5. N4JS Extended Function Definition</a>
<ul class="sectlevel3">
<li><a href="functions.html#_generic-functions">6.5.1. Generic Functions</a></li>
<li><a href="functions.html#_promisifiable-functions">6.5.2. Promisifiable Functions</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="conversions_and_reflection.html#_conversions-and-reflection">7. Conversions and Reflection</a>
<ul class="sectlevel2">
<li><a href="conversions_and_reflection.html#_autoboxing-and-coercing">7.1. Autoboxing and Coercing</a>
<ul class="sectlevel3">
<li><a href="conversions_and_reflection.html#_coercing">7.1.1. Coercing</a></li>
<li><a href="conversions_and_reflection.html#_autoboxing-of-primitives">7.1.2. Autoboxing of Primitives</a></li>
<li><a href="conversions_and_reflection.html#_autoboxing-of-function-expressions-and-declarations">7.1.3. Autoboxing of Function Expressions and Declarations</a></li>
</ul>
</li>
<li><a href="conversions_and_reflection.html#_auto-conversion-of-objects">7.2. Auto-Conversion of Objects</a>
<ul class="sectlevel3">
<li><a href="conversions_and_reflection.html#_auto-conversion-of-class-instances">7.2.1. Auto-Conversion of Class Instances</a>
<ul class="sectlevel4">
<li><a href="conversions_and_reflection.html#_auto-conversion-of-interface-instances">7.2.1.1. Auto-Conversion of Interface Instances</a></li>
</ul>
</li>
<li><a href="conversions_and_reflection.html#_auto-conversion-of-enum-literals">7.2.2. Auto-Conversion of Enum Literals</a></li>
</ul>
</li>
<li><a href="conversions_and_reflection.html#_type-cast-and-type-check">7.3. Type Cast and Type Check</a>
<ul class="sectlevel3">
<li><a href="conversions_and_reflection.html#_type-cast">7.3.1. Type Cast</a></li>
<li><a href="conversions_and_reflection.html#_type-check">7.3.2. Type Check</a></li>
</ul>
</li>
<li><a href="conversions_and_reflection.html#_reflection-meta-information">7.4. Reflection meta-information</a>
<ul class="sectlevel3">
<li><a href="conversions_and_reflection.html#_reflection-for-classes">7.4.1. Reflection for Classes</a></li>
<li><a href="conversions_and_reflection.html#_reflection-for-interfaces">7.4.2. Reflection for Interfaces</a></li>
<li><a href="conversions_and_reflection.html#_reflection-for-enumerations">7.4.3. Reflection for Enumerations</a></li>
</ul>
</li>
<li><a href="conversions_and_reflection.html#_conversion-of-primitive-types">7.5. Conversion of primitive types</a></li>
</ul>
</li>
<li><a href="expressions.html#_expressions">8. Expressions</a>
<ul class="sectlevel2">
<li><a href="expressions.html#_ecmascript-5-expressions">8.1. ECMAScript 5 Expressions</a>
<ul class="sectlevel3">
<li><a href="expressions.html#_the-this-literal">8.1.1. The this Literal</a></li>
<li><a href="expressions.html#_identifier">8.1.2. Identifier</a></li>
<li><a href="expressions.html#_literals">8.1.3. Literals</a>
<ul class="sectlevel4">
<li><a href="expressions.html#_integer-literals">8.1.3.1. Integer Literals</a></li>
</ul>
</li>
<li><a href="expressions.html#_array-literal">8.1.4. Array Literal</a></li>
<li><a href="expressions.html#_object-literal">8.1.5. Object Literal</a>
<ul class="sectlevel4">
<li><a href="expressions.html#_properties-6">8.1.5.1. Properties</a></li>
<li><a href="expressions.html#_scoping-and-linking">8.1.5.2. Scoping and linking</a></li>
</ul>
</li>
<li><a href="expressions.html#_parenthesized-expression-and-grouping-operator">8.1.6. Parenthesized Expression and Grouping Operator</a></li>
<li><a href="expressions.html#_property-accessors">8.1.7. Property Accessors</a>
<ul class="sectlevel4">
<li><a href="expressions.html#properties-1">8.1.7.1. Properties</a></li>
</ul>
</li>
<li><a href="expressions.html#_new-expression">8.1.8. New Expression</a></li>
<li><a href="expressions.html#_function-expression-2">8.1.9. Function Expression</a></li>
<li><a href="expressions.html#_function-calls">8.1.10. Function Calls</a></li>
<li><a href="expressions.html#_postfix-expression">8.1.11. Postfix Expression</a></li>
<li><a href="expressions.html#_unary-expression">8.1.12. Unary Expression</a></li>
<li><a href="expressions.html#_multiplicative-expression">8.1.13. Multiplicative Expression</a></li>
<li><a href="expressions.html#_additive-expression">8.1.14. Additive Expression</a>
<ul class="sectlevel4">
<li><a href="expressions.html#type-inference-10">8.1.14.1. Type Inference</a></li>
</ul>
</li>
<li><a href="expressions.html#_bitwise-shift-expression">8.1.15. Bitwise Shift Expression</a></li>
<li><a href="expressions.html#_relational-expression">8.1.16. Relational Expression</a></li>
<li><a href="expressions.html#_equality-expression">8.1.17. Equality Expression</a></li>
<li><a href="expressions.html#_binary-bitwise-expression">8.1.18. Binary Bitwise Expression</a></li>
<li><a href="expressions.html#_binary-logical-expression">8.1.19. Binary Logical Expression</a></li>
<li><a href="expressions.html#_conditional-expression">8.1.20. Conditional Expression</a></li>
<li><a href="expressions.html#_assignment-expression">8.1.21. Assignment Expression</a></li>
<li><a href="expressions.html#_comma-expression">8.1.22. Comma Expression</a></li>
</ul>
</li>
<li><a href="expressions.html#_ecmascript-6-expressions">8.2. ECMAScript 6 Expressions</a>
<ul class="sectlevel3">
<li><a href="expressions.html#_the-super-keyword">8.2.1. The super Keyword</a></li>
</ul>
</li>
<li><a href="expressions.html#_ecmascript-7-expressions">8.3. ECMAScript 7 Expressions</a>
<ul class="sectlevel3">
<li><a href="expressions.html#_await-expression">8.3.1. Await Expression</a></li>
</ul>
</li>
<li><a href="expressions.html#_n4js-specific-expressions">8.4. N4JS Specific Expressions</a>
<ul class="sectlevel3">
<li><a href="expressions.html#_class-expression">8.4.1. Class Expression</a></li>
<li><a href="expressions.html#_cast-as-expression">8.4.2. Cast (As) Expression</a>
<ul class="sectlevel4">
<li><a href="expressions.html#cast-as-expression-semantics-type-inference">8.4.2.1. Semantics and Type Inference</a></li>
</ul>
</li>
<li><a href="expressions.html#Import_Calls">8.4.3. Import Calls</a></li>
</ul>
</li>
<li><a href="expressions.html#compile-time-expressions">8.5. Compile-Time Expressions</a></li>
</ul>
</li>
<li><a href="statements.html#_statements">9. Statements</a>
<ul class="sectlevel2">
<li><a href="statements.html#_ecmascript-5-statements">9.1. ECMAScript 5 Statements</a>
<ul class="sectlevel3">
<li><a href="statements.html#_function-or-field-accessor-bodies">9.1.1. Function or Field Accessor Bodies</a></li>
<li><a href="statements.html#_variable-statement">9.1.2. Variable Statement</a></li>
<li><a href="statements.html#_if-statement">9.1.3. If Statement</a></li>
<li><a href="statements.html#_iteration-statements">9.1.4. Iteration Statements</a></li>
<li><a href="statements.html#_return-statement">9.1.5. Return Statement</a></li>
<li><a href="statements.html#_with-statement">9.1.6. With Statement</a></li>
<li><a href="statements.html#_switch-statement">9.1.7. Switch Statement</a></li>
<li><a href="statements.html#_throw-try-and-catch-statements">9.1.8. Throw, Try, and Catch Statements</a></li>
<li><a href="statements.html#_debugger-statement">9.1.9. Debugger Statement</a></li>
</ul>
</li>
<li><a href="statements.html#_ecmascript-6-statements">9.2. ECMAScript 6 Statements</a>
<ul class="sectlevel3">
<li><a href="statements.html#_let">9.2.1. Let</a></li>
<li><a href="statements.html#_const">9.2.2. Const</a></li>
<li><a href="statements.html#_for-of-statement">9.2.3. <code>for &#8230;&#8203; of</code> statement</a></li>
<li><a href="statements.html#_import-statement">9.2.4. Import Statement</a>
<ul class="sectlevel4">
<li><a href="statements.html#Dynamic_Imports">9.2.4.1. Dynamic Imports</a></li>
<li><a href="statements.html#_immutabilaty-of-imports">9.2.4.2. Immutabilaty of Imports</a></li>
</ul>
</li>
<li><a href="statements.html#_export-statement">9.2.5. Export Statement</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="annotations.html#_annotations">10. Annotations</a>
<ul class="sectlevel2">
<li><a href="annotations.html#_introduction-2">10.1. Introduction</a>
<ul class="sectlevel3">
<li><a href="annotations.html#_syntax-13">10.1.1. Syntax</a></li>
<li><a href="annotations.html#_properties-7">10.1.2. Properties</a></li>
<li><a href="annotations.html#_element-specific-annotations">10.1.3. Element-Specific Annotations</a></li>
<li><a href="annotations.html#_general-annotations">10.1.4. General Annotations</a>
<ul class="sectlevel4">
<li><a href="annotations.html#_idebug">10.1.4.1. IDEBUG</a></li>
</ul>
</li>
<li><a href="annotations.html#idebug-syntax">10.1.5. Syntax</a>
<ul class="sectlevel4">
<li><a href="annotations.html#_semantics-11">10.1.5.1. Semantics</a></li>
<li><a href="annotations.html#_suppress-warnings">10.1.5.2. Suppress Warnings</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="annotations.html#_declaration-of-annotations">10.2. Declaration of Annotations</a></li>
</ul>
</li>
<li><a href="extended_fetaures.html#_extended-fetaures">11. Extended Fetaures</a>
<ul class="sectlevel2">
<li><a href="extended_fetaures.html#_array-and-object-destructuring">11.1. Array and Object Destructuring</a>
<ul class="sectlevel3">
<li><a href="extended_fetaures.html#_syntax-14">11.1.1. Syntax</a></li>
<li><a href="extended_fetaures.html#_semantics-12">11.1.2. Semantics</a></li>
</ul>
</li>
<li><a href="extended_fetaures.html#_dependency-injection">11.2. Dependency Injection</a>
<ul class="sectlevel3">
<li><a href="extended_fetaures.html#_di-components-and-injectors">11.2.1. DI Components and Injectors</a>
<ul class="sectlevel4">
<li><a href="extended_fetaures.html#_dicomponent-relations">11.2.1.1. DIComponent Relations</a></li>
</ul>
</li>
<li><a href="extended_fetaures.html#_binders-and-bindings">11.2.2. Binders and Bindings</a></li>
<li><a href="extended_fetaures.html#_injection-points">11.2.3. Injection Points</a>
<ul class="sectlevel4">
<li><a href="extended_fetaures.html#_field-injection">11.2.3.1. Field Injection</a></li>
<li><a href="extended_fetaures.html#_constructor-injection">11.2.3.2. Constructor Injection</a></li>
<li><a href="extended_fetaures.html#_method-injection">11.2.3.3. Method Injection</a>
<ul class="sectlevel5">
<li><a href="extended_fetaures.html#_provider">11.2.3.3.1. Provider</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="extended_fetaures.html#_n4js-di-life-cycle-and-scopes">11.2.4. N4JS DI Life Cycle and Scopes</a>
<ul class="sectlevel4">
<li><a href="extended_fetaures.html#_injection-cylces">11.2.4.1. Injection Cylces</a></li>
<li><a href="extended_fetaures.html#_default-scope">11.2.4.2. Default Scope</a></li>
<li><a href="extended_fetaures.html#_singleton-scope">11.2.4.3. Singleton Scope</a></li>
<li><a href="extended_fetaures.html#_per-injection-chain-singleton">11.2.4.4. Per Injection Chain Singleton</a></li>
</ul>
</li>
<li><a href="extended_fetaures.html#_validation-of-callsites-targeting-n4injector-methods">11.2.5. Validation of callsites targeting N4Injector methods</a></li>
<li><a href="extended_fetaures.html#_n4js-di-annotations">11.2.6. N4JS DI Annotations</a>
<ul class="sectlevel4">
<li><a href="extended_fetaures.html#_n4js-di-generateinjector">11.2.6.1. N4JS DI @GenerateInjector</a></li>
<li><a href="extended_fetaures.html#_n4js-di-withparentinjector">11.2.6.2. N4JS DI @WithParentInjector</a></li>
<li><a href="extended_fetaures.html#_n4js-di-usebinder">11.2.6.3. N4JS DI @UseBinder</a></li>
<li><a href="extended_fetaures.html#_n4js-di-binder">11.2.6.4. N4JS DI @Binder</a></li>
<li><a href="extended_fetaures.html#_n4js-di-bind">11.2.6.5. N4JS DI @Bind</a></li>
<li><a href="extended_fetaures.html#_n4js-di-provides">11.2.6.6. N4JS DI @Provides</a></li>
<li><a href="extended_fetaures.html#_n4js-di-inject">11.2.6.7. N4JS DI @Inject</a></li>
<li><a href="extended_fetaures.html#_n4js-di-singleton">11.2.6.8. N4JS DI @Singleton</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="extended_fetaures.html#_test-support">11.3. Test Support</a></li>
<li><a href="extended_fetaures.html#_polyfill-definitions">11.4. Polyfill Definitions</a>
<ul class="sectlevel3">
<li><a href="extended_fetaures.html#_runtime-polyfill-definitions">11.4.1. Runtime Polyfill Definitions</a></li>
<li><a href="extended_fetaures.html#_static-polyfill-definitions">11.4.2. Static Polyfill Definitions</a></li>
<li><a href="extended_fetaures.html#_transpiling-static-polyfilled-classes">11.4.3. Transpiling static polyfilled classes</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="components.html#_components">12. Components</a>
<ul class="sectlevel2">
<li><a href="components.html#_overview-2">12.1. Overview</a></li>
<li><a href="components.html#Component_Types">12.2. Component Types</a>
<ul class="sectlevel3">
<li><a href="components.html#_libraries">12.2.1. Libraries</a></li>
<li><a href="components.html#_runtime-environment-and-runtime-libraries">12.2.2. Runtime Environment and Runtime Libraries</a></li>
<li><a href="components.html#_tests">12.2.3. Tests</a></li>
<li><a href="components.html#_type-definitions">12.2.4. Type Definitions</a></li>
</ul>
</li>
<li><a href="components.html#package-json">12.3. Package.json File</a>
<ul class="sectlevel3">
<li><a href="components.html#_basic-properties">12.3.1. Basic Properties</a></li>
<li><a href="components.html#_n4js-properties">12.3.2. N4JS Properties</a></li>
<li><a href="components.html#_constraints">12.3.3. Constraints</a></li>
</ul>
</li>
<li><a href="components.html#_support-for-npm-scopes">12.4. Support for NPM Scopes</a></li>
<li><a href="components.html#sec:N4JS-Type-Definitions">12.5. N4JS Type Definitions</a>
<ul class="sectlevel3">
<li><a href="components.html#_specify-type-definition">12.5.1. Specify Type Definition</a></li>
<li><a href="components.html#_name-conventions">12.5.2. Name Conventions</a></li>
<li><a href="components.html#_version-conventions">12.5.3. Version Conventions</a>
<ul class="sectlevel4">
<li><a href="components.html#_define-a-new-type-definition-package">12.5.3.1. Define a New Type Definition Package</a></li>
<li><a href="components.html#_using-a-type-definition-package">12.5.3.2. Using a Type Definition Package</a></li>
<li><a href="components.html#_rational">12.5.3.3. Rational</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="components.html#_modules">12.6. Modules</a></li>
<li><a href="components.html#_api-and-implementation-component">12.7. API and Implementation Component</a>
<ul class="sectlevel3">
<li><a href="components.html#_execution-of-api-and-implementation-components">12.7.1. Execution of API and Implementation Components</a></li>
<li><a href="components.html#_api-and-implementation-with-di">12.7.2. API and Implementation With DI</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="plainjs.html#_plainjs">13. PlainJS</a>
<ul class="sectlevel2">
<li><a href="plainjs.html#_type-inference-and-validation-for-plain-js">13.1. Type Inference and Validation for Plain JS</a></li>
<li><a href="plainjs.html#_external-declarations">13.2. External Declarations</a>
<ul class="sectlevel3">
<li><a href="plainjs.html#_declaring-externals">13.2.1. Declaring externals</a></li>
<li><a href="plainjs.html#_instantiating-external-classes">13.2.2. Instantiating external classes</a></li>
<li><a href="plainjs.html#_implementation-of-external-declarations">13.2.3. Implementation of External Declarations</a></li>
<li><a href="plainjs.html#_example">13.2.4. Example</a></li>
</ul>
</li>
<li><a href="plainjs.html#_global-definitions">13.3. Global Definitions</a></li>
<li><a href="plainjs.html#_runtime-definitions">13.4. Runtime Definitions</a></li>
<li><a href="plainjs.html#_applying-polyfills">13.5. Applying Polyfills</a></li>
</ul>
</li>
<li><a href="jsdoc.html#_jsdoc-2">14. JSDoc</a>
<ul class="sectlevel2">
<li><a href="jsdoc.html#_general-n4jsdoc-features">14.1. General N4JSDoc Features</a>
<ul class="sectlevel3">
<li><a href="jsdoc.html#_provided-inline-tags">14.1.1. Provided Inline Tags</a>
<ul class="sectlevel4">
<li><a href="jsdoc.html#jsdoc_tag__code">14.1.1.1. @code</a></li>
<li><a href="jsdoc.html#jsdoc_tag__link">14.1.1.2. @link</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="jsdoc.html#_n4jsdoc-for-user-projects">14.2. N4JSdoc for User Projects</a>
<ul class="sectlevel3">
<li><a href="jsdoc.html#_standard-tags">14.2.1. Standard Tags</a>
<ul class="sectlevel4">
<li><a href="jsdoc.html#_-author">14.2.1.1. @author</a></li>
<li><a href="jsdoc.html#jsdoc_tag_param">14.2.1.2. @param</a></li>
<li><a href="jsdoc.html#jsdoc_tag_return">14.2.1.3. @return</a></li>
</ul>
</li>
<li><a href="jsdoc.html#_test-related-tags">14.2.2. Test Related Tags</a>
<ul class="sectlevel4">
<li><a href="jsdoc.html#jsdoc_tag__testee">14.2.2.1. @testee</a></li>
<li><a href="jsdoc.html#jsdoc_tag__testeeFromType">14.2.2.2. @testeeFromType</a></li>
<li><a href="jsdoc.html#_testeeType_and__testeeMember">14.2.2.3. @testeeType and @testeeMember</a></li>
<li><a href="jsdoc.html#jsdoc_tag_reqid_in_Tests">14.2.2.4. @reqid in Tests</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="jsdoc.html#_n4jsdoc-for-api-and-implementation-projects">14.3. N4JSDoc for API and Implementation Projects</a>
<ul class="sectlevel3">
<li><a href="jsdoc.html#jsdoc_tag__apiNote">14.3.1. @apiNote</a></li>
<li><a href="jsdoc.html#API_Project_Tags">14.3.2. API Project Tags</a>
<ul class="sectlevel4">
<li><a href="jsdoc.html#jsdoc_tag_apiState">14.3.2.1. @apiState</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li><a href="jsx.html#_jsx">15. JSX</a>
<ul class="sectlevel2">
<li><a href="jsx.html#_jsx-support">15.1. JSX Support</a></li>
<li><a href="jsx.html#_jsx-backend">15.2. JSX Backend</a></li>
</ul>
</li>
<li><a href="grammars.html#_grammars">16. Grammars</a>
<ul class="sectlevel2">
<li><a href="grammars.html#_type-expressions-grammar">16.1. Type Expressions Grammar</a></li>
<li><a href="grammars.html#_n4js-language-grammar">16.2. N4JS Language Grammar</a></li>
</ul>
</li>
<li><a href="jsobjects.html#_jsobjects">17. JSObjects</a>
<ul class="sectlevel2">
<li><a href="jsobjects.html#_object">17.1. Object</a></li>
<li><a href="jsobjects.html#_string">17.2. String</a></li>
<li><a href="jsobjects.html#_boolean">17.3. Boolean</a></li>
<li><a href="jsobjects.html#_number">17.4. Number</a>
<ul class="sectlevel3">
<li><a href="jsobjects.html#_static-attributes">17.4.1. Static Attributes</a></li>
</ul>
</li>
<li><a href="jsobjects.html#function">17.5. Function</a></li>
<li><a href="jsobjects.html#_error">17.6. Error</a></li>
<li><a href="jsobjects.html#_array">17.7. Array</a></li>
<li><a href="jsobjects.html#_date">17.8. Date</a></li>
<li><a href="jsobjects.html#_math">17.9. Math</a>
<ul class="sectlevel3">
<li><a href="jsobjects.html#static-attributes-1">17.9.1. Static Attributes</a></li>
</ul>
</li>
<li><a href="jsobjects.html#_regexp">17.10. RegExp</a></li>
<li><a href="jsobjects.html#_json">17.11. JSON</a></li>
</ul>
</li>
<li><a href="n4js_objects.html#_n4js-objects">18. N4JS Objects</a>
<ul class="sectlevel2">
<li><a href="n4js_objects.html#_reflection-model">18.1. Reflection Model</a></li>
<li><a href="n4js_objects.html#_error-types">18.2. Error Types</a>
<ul class="sectlevel3">
<li><a href="n4js_objects.html#_n4apinotimplemented">18.2.1. N4ApiNotImplemented</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="appendix_a_acronyms.html#_acronyms">Appendix A: Acronyms</a></li>
<li><a href="appendix_b_license.html#sec:License">Appendix B: License</a></li>
<li><a href="#_bibliography">Appendix C: Bibliography</a></li>
</ul>
</div>
</div>
<div id="content"><div class="sect1">
<h2 id="_bibliography"><a class="anchor" href="#_bibliography"></a><a class="link" href="#_bibliography">Appendix C: Bibliography</a></h2>
<div class="sectionbody">
<div class="openblock bibliography">
<div class="content">
<div class="paragraph">
<p><a id="ECMA15a"></a>ECMA. (2015). <em>ECMAScript 2015 Language Specification</em>. Retrieved from <a href="http://www.ecma-international.org/ecma-262/6.0/index.html" class="bare">http://www.ecma-international.org/ecma-262/6.0/index.html</a></p>
</div>
<div class="paragraph">
<p><a id="ECMA11a"></a>(2011). <em>ECMAScript Language Specification</em>. Retrieved from <a href="http://www.ecma-international.org/publications/standards/Ecma-262.htm" class="bare">http://www.ecma-international.org/publications/standards/Ecma-262.htm</a></p>
</div>
<div class="paragraph">
<p><a id="Pierce02a"></a>Pierce, Benjamin C.. (2002). <em>Types and Programming Languages</em>. </p>
</div>
<div class="paragraph">
<p><a id="Gosling15a"></a>Gosling, James and Joy, Bill and Steele, Guy and Bracha, Gilad and Buckley, Alex. (2015). <em>The Java Language Specification. Java SE 8 Edition</em>. Retrieved from <a href="http://docs.oracle.com/javase/specs/jls/se8/jls8.pdf" class="bare">http://docs.oracle.com/javase/specs/jls/se8/jls8.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="Gosling12a"></a>Gosling, James and Joy, Bill and Steele, Guy and Bracha, Gilad and Buckley, Alex. (2012). <em>The Java Language Specification. Java SE 7 Edition</em>. Retrieved from <a href="http://docs.oracle.com/javase/specs/jls/se7/jls7.pdf" class="bare">http://docs.oracle.com/javase/specs/jls/se7/jls7.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="Nielson99a"></a>Nielson, Flemming and Nielson, HanneRiis. (1999). <em>Type and Effect Systems</em>. Retrieved from <a href="http://dx.doi.org/10.1007/3-540-48092-7_6" class="bare">http://dx.doi.org/10.1007/3-540-48092-7_6</a></p>
</div>
<div class="paragraph">
<p><a id="Crary02a"></a>Crary, Karl and Weirich, Stephanie and Morrisett, Greg. (2002). <em>Intensional polymorphism in type-erasure semantics</em>. Retrieved from <a href="http://journals.cambridge.org/article_S0956796801004282" class="bare">http://journals.cambridge.org/article_S0956796801004282</a></p>
</div>
<div class="paragraph">
<p><a id="Igarashi01a"></a>Igarashi, Atsushi and Pierce, Benjamin C. and Wadler, Philip. (2001). <em>Featherweight Java: a minimal core calculus for Java and GJ</em>. </p>
</div>
<div class="paragraph">
<p><a id="Torgersen05a"></a>Torgersen, Mads and Ernst, Erik and Hansen, Christian Plesner. (2005). <em>Wild FJ</em>. Retrieved from <a href="http://homepages.inf.ed.ac.uk/wadler/fool/program/14.html" class="bare">http://homepages.inf.ed.ac.uk/wadler/fool/program/14.html</a></p>
</div>
<div class="paragraph">
<p><a id="Cameron08b"></a>Cameron, Nicholas and Drossopoulou, Sophia and Ernst, Erik. (2008). <em>A Model for Java with Wildcards</em>. Retrieved from <a href="http://dx.doi.org/10.1007/978-3-540-70592-5_2" class="bare">http://dx.doi.org/10.1007/978-3-540-70592-5_2</a></p>
</div>
<div class="paragraph">
<p><a id="Cameron09a"></a>Cameron, Nicholas. (2009). <em>Existential Types for Variance&#8201;&#8212;&#8201;Java Wildcards and Ownership Types</em>. Retrieved from <a href="http://www.doc.ic.ac.uk/~ncameron/papers/cameron_thesis.pdf" class="bare">http://www.doc.ic.ac.uk/~ncameron/papers/cameron_thesis.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="Summers10a"></a>Summers, Alexander J. and Cameron, Nicholas and Dezani-Ciancaglini, Mariangiola and Drossopoulou, Sophia. (2010). <em>Towards a semantic model for Java wildcards</em>. </p>
</div>
<div class="paragraph">
<p><a id="Wehr08a"></a>Wehr, Stefan and Thiemann, Peter. (2008). <em>Subtyping Existential Types</em>. Retrieved from <a href="http://www.informatik.uni-freiburg.de/~wehr/publications/Wehr_Subtyping_existential_types.pdf" class="bare">http://www.informatik.uni-freiburg.de/~wehr/publications/Wehr_Subtyping_existential_types.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="Igarashi07a"></a>Igarashi, Atsushi and Nagira, Hideshi. (2007). <em>Union Types for Object-Oriented Programming</em>. Retrieved from <a href="http://www.jot.fm/issues/issue_2007_02/article3/" class="bare">http://www.jot.fm/issues/issue_2007_02/article3/</a></p>
</div>
<div class="paragraph">
<p><a id="King13a"></a>King, Gavin. (2013). <em>The Ceylon Language</em>. Red Hat, Inc.. Retrieved from <a href="http://ceylon-lang.org/documentation/1.0/spec/pdf/ceylon-language-specification.pdf" class="bare">http://ceylon-lang.org/documentation/1.0/spec/pdf/ceylon-language-specification.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="Laurent12a"></a>Laurent, Olivier. (2012). <em>Intersection types with subtyping by means of cut elimination</em>. </p>
</div>
<div class="paragraph">
<p><a id="W3C:Steen:14:XL"></a>Steen, Hallvord and Aubourg, Julian and van Kesteren, Anne and Song, Jungkee. (2014). <em>XMLHttpRequest Level 1</em>. </p>
</div>
<div class="paragraph">
<p><a id="Dart13a"></a>Dart Team. (2013). <em>Dart Programming Language Specification</em>. Retrieved from <a href="http://www.dartlang.org/docs/spec/latest/dart-language-specification.pdf" class="bare">http://www.dartlang.org/docs/spec/latest/dart-language-specification.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="OMG14a"></a>OMG. (2014). <em>Interface Definition Language</em>. Object Management Group. Retrieved from <a href="http://www.omg.org/cgi-bin/doc?formal/2014-03-01.pdf" class="bare">http://www.omg.org/cgi-bin/doc?formal/2014-03-01.pdf</a></p>
</div>
<div class="paragraph">
<p><a id="W3C12a"></a>W3C. (2012). <em>Web IDL Specification</em>. Retrieved from <a href="http://www.w3.org/TR/2012/CR-WebIDL-20120419/" class="bare">http://www.w3.org/TR/2012/CR-WebIDL-20120419/</a></p>
</div>
<div class="paragraph">
<p><a id="Kuizinas14a"></a>Kuizinas, Gajus. (2014). <em>The Definitive Guide to the JavaScript Generators</em>. Retrieved from <a href="http://gajus.com/blog/2/the-definetive-guide-to-the-javascript-generators" class="bare">http://gajus.com/blog/2/the-definetive-guide-to-the-javascript-generators</a></p>
</div>
<div class="paragraph">
<p><a id="West06a"></a>West, Mike. (2006). <em>Scope in JavaScript</em>. Retrieved from <a href="http://www.digital-web.com/articles/scope_in_javascript/" class="bare">http://www.digital-web.com/articles/scope_in_javascript/</a></p>
</div>
<div class="paragraph">
<p><a id="ECMA18a"></a>ECMA. (2018). <em>ECMAScript 2018 Language Specification</em>. Retrieved from <a href="http://www.ecma-international.org/ecma-262/9.0/index.html" class="bare">http://www.ecma-international.org/ecma-262/9.0/index.html</a></p>
</div>
<div class="paragraph">
<p><a id="MozillaJSRef"></a><em>JavaScript Reference</em>. Retrieved from <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference" class="bare">https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference</a></p>
</div>
<div class="paragraph">
<p><a id="Fowler04b"></a>Fowler, Martin. (2004). <em>Inversion of Control Containers and the Dependency Injection pattern</em>. Retrieved from <a href="http://martinfowler.com/articles/injection.html" class="bare">http://martinfowler.com/articles/injection.html</a></p>
</div>
<div class="paragraph">
<p><a id="Prasanna09a"></a>Prasanna, Dhanji R. (2009). <em>Dependency Injection: Design Patterns Using Spring and Guice</em>. </p>
</div>
<div class="paragraph">
<p><a id="Zhu13a"></a>Zhu, He and Jagannathan, Suresh. (2013). <em>Compositional and Lightweight Dependent Type Inference for ML</em>. Retrieved from <a href="http://dx.doi.org/10.1007/978-3-642-35873-9_19" class="bare">http://dx.doi.org/10.1007/978-3-642-35873-9_19</a></p>
</div>
<div class="paragraph">
<p><a id="Hudli13a"></a>Hudli, Shrinidhi R. and Hudli, Raghu V.. (2013). <em>A Verification Strategy for Dependency Injection</em>. </p>
</div>
<div class="paragraph">
<p><a id="Lesiecki08a"></a>Lesiecki, Nicholas. (2008). <em>Dependency injection with Guice</em>. Retrieved from <a href="http://www.ibm.com/developerworks/library/j-guice/" class="bare">http://www.ibm.com/developerworks/library/j-guice/</a></p>
</div>
<div class="paragraph">
<p><a id="Betts13a"></a>Betts, Dominic and Melnik, Grigori and Simonazzi, Fernando and Subramanian, Mani. (2013). <em>Dependency Injection with Unity</em>. </p>
</div>
<div class="paragraph">
<p><a id="Knol13a"></a>Knol, Alex. (2013). <em>Dependency injection with AngularJS</em>. </p>
</div>
<div class="paragraph">
<p><a id="Dagger"></a><em>Dagger, Project Website</em>. Retrieved from <a href="http://square.github.io/dagger/" class="bare">http://square.github.io/dagger/</a></p>
</div>
<div class="paragraph">
<p><a id="ECMA12a"></a>(2012). <em>ECMAScript Internationalization API Specification</em>. Retrieved from <a href="http://www.ecma-international.org/publications/standards/Ecma-402.htm" class="bare">http://www.ecma-international.org/publications/standards/Ecma-402.htm</a></p>
</div>
<div class="paragraph">
<p><a id="Martin96b"></a>Martin, Robert C. (1996). <em>The Liskov Substitution Principle</em>. Retrieved from <a href="http://www.objectmentor.com/publications/lsp.pdf" class="bare">http://www.objectmentor.com/publications/lsp.pdf</a></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div id="footnotes">
<hr>
<div class="footnote" id="_footnote_1">
<a href="annotations.html#_footnoteref_1">1</a>. A brief introduction can be found at <a href="http://www.cs.cornell.edu/~ross/publications/mixedsite/tutorial.html" class="bare">http://www.cs.cornell.edu/~ross/publications/mixedsite/tutorial.html</a>. In general, we refer the reader to [<a href="#Pierce02a">Pierce02a</a>]
</div>
<div class="footnote" id="_footnote_2">
<a href="introduction.html#_footnoteref_2">2</a>. One can interpret this similar to delegate methods, that is, instead of writing <code class="language-n4js">r.binding().getType()</code>, a method <code class="language-n4js">r.getType()\{return binding().getType();</code> is defined.
</div>
<div class="footnote" id="_footnote_3">
<a href="grammar.html#_footnoteref_3">3</a>. <a href="http://javascript.crockford.com/code.html" class="bare">http://javascript.crockford.com/code.html</a>
</div>
<div class="footnote" id="_footnote_4">
<a href="names.html#_footnoteref_4">4</a>. See for definitions of metatype properties.
</div>
<div class="footnote" id="_footnote_5">
<a href="names.html#_footnoteref_5">5</a>. That is, for application developers not providing a library or a public API available to other vendors, member access modifiers behave almost similar to modifiers known from Java.
</div>
<div class="footnote" id="_footnote_6">
<a href="names.html#_footnoteref_6">6</a>. See <a href="classifiers.html#_n4js-specific-classifiers">N4JS Specific Classifiers</a> for definitions of metatype properties. Note that <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>r</mi><mo>.</mo><mi>r</mi><mi>e</mi><mi>c</mi><mi>e</mi><mi>i</mi><mi>v</mi><mi>e</mi><mi>r</mi></math> always refers to a type declaration in the context of an expression as the receiver type of <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>r</mi></math>. The declaring type of the member declaration is considered to be the receiver type of the member reference rather than the type that originally declares the member declaration.
</div>
<div class="footnote" id="_footnote_7">
<a href="names.html#_footnoteref_7">7</a>. Note the Java-like access restriction for members of visibility <code class="language-n4js">protected</code> or <code class="language-n4js">protected@Internal</code> to code that is responsible for the implementation of that object. [<a href="#Gosling15a">Gosling15a(p.S6.6.2, p.p.166)</a>]
</div>
<div class="footnote" id="_footnote_8">
<a href="names.html#_footnoteref_8">8</a>. <code class="language-n4js">string, boolean, number, any, null</code>
</div>
<div class="footnote" id="_footnote_9">
<a href="names.html#_footnoteref_9">9</a>. This conflicts with the implicit parameter arguments introduced by the transpiler when wrapping the script/module into a definition function.
</div>
<div class="footnote" id="_footnote_10">
<a href="types.html#_footnoteref_10">10</a>. In the N4JS IDE, type annotations are highlighted differently than ordinary code.
</div>
<div class="footnote" id="_footnote_11">
<a href="types.html#_footnoteref_11">11</a>. The notation <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>|</mo><mi>T</mi><mo>|</mo></math> used in [<a href="#Gosling12a">Gosling12a</a>] conflicts with the notation of cardinality of sets, which we use in case of union or intersection types for types as well. The notation used here is inspired by [<a href="#Crary02a">Crary02a</a>], in which a mapping is defined between a typed language <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>λ</mi></math> to an untyped language <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>λ</mi></math><sup>o</sup>.
</div>
<div class="footnote" id="_footnote_12">
<a href="types.html#_footnoteref_12">12</a>. Although raw type usage is prohibited, the N4JS validator interprets raw types according to the first case, which may lead to consequential errors.
</div>
<div class="footnote" id="_footnote_13">
<a href="types.html#_footnoteref_13">13</a>. in the Java 8 spec and compiler, they are called type variables, which are types as well
</div>
<div class="footnote" id="_footnote_14">
<a href="types.html#_footnoteref_14">14</a>. The rationale for having this limited implementation of type is that API designers already want to start providing hints where later only 32-bit integers will be used. For the time being, <strong>this is checked neither statically nor at runtime</strong>!
</div>
<div class="footnote" id="_footnote_15">
<a href="types.html#_footnoteref_15">15</a>. This is a consequence of the syntax definition.
</div>
<div class="footnote" id="_footnote_16">
<a href="types.html#_footnoteref_16">16</a>. For type theory about union types, [<a href="#Pierce02a">Pierce02a(p.15.7)</a>] and [<a href="#Igarashi07a">Igarashi07a</a>], other languages that explicitly support the notion of union type include Ceylon [<a href="#King13a">King13a(p.3.2.4/5)</a>]
</div>
<div class="footnote" id="_footnote_17">
<a href="types.html#_footnoteref_17">17</a>. This is different from Ceylon ( [<a href="#King13a">King13a(p.3.2.3)</a>]), in which the union is defined to be <code>the same type as</code> <em>A</em>. Although the meaning of <code>same</code> is not clear, it is possibly used as a synonym for <code>equivalent</code>.
</div>
<div class="footnote" id="_footnote_18">
<a href="types.html#_footnoteref_18">18</a>. See Example <a href="types.html#ex:class-hierarchy">Type Examples, Class Hierarchy</a> for class definitions.
</div>
<div class="footnote" id="_footnote_19">
<a href="types.html#_footnoteref_19">19</a>. For type theory about intersection types, see [<a href="#Pierce02a">Pierce02a(p.15.7)</a>] and [<a href="#Laurent12a">Laurent12a</a>], other languages supporting explicit notion of intersection type include Ceylon [<a href="#King13a">King13a(p.3.2.4/5)</a>].
</div>
<div class="footnote" id="_footnote_20">
<a href="types.html#_footnoteref_20">20</a>. This rule is a generalization of the subtyping rules given in [<a href="#Laurent12a">Laurent12a</a>] Table 2, <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mo>∩</mo><mi>l</mi><mn>1</mn></msubsup></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mo>∩</mo><mi>l</mi><mn>2</mn></msubsup></math>
</div>
<div class="footnote" id="_footnote_21">
<a href="types.html#_footnoteref_21">21</a>. This rule is a generalization of the subtyping rules given in [<a href="#Laurent12a">Laurent12a</a>] Table 2, <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mo>∩</mo><mi>r</mi></msub></math>
</div>
<div class="footnote" id="_footnote_22">
<a href="types.html#_footnoteref_22">22</a>. In Ceylon, for a given union type <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>U</mi><mo>=</mo><msub><mi>T</mi><mn>1</mn></msub><mo>|</mo><msub><mi>T</mi><mn>2</mn></msub></math> and intersection type <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>I</mi><mo>=</mo><msub><mi>T</mi><mn>1</mn></msub><mi>&amp;</mi><msub><mi>T</mi><mn>2</mn></msub></math> (with ’|’ is union and ’&amp;’ is intersection), <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>T</mi><mn>1</mn></msub><mspace width="1.0mm"/><mo>&lt;</mo><mstyle mathvariant="monospace"><mtext>:</mtext></mstyle><mspace width="1.0mm"/><mi>U</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>T</mi><mn>2</mn></msub><mspace width="1.0mm"/><mo>&lt;</mo><mstyle mathvariant="monospace"><mtext>:</mtext></mstyle><mspace width="1.0mm"/><mi>U</mi></math> is true, and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>T</mi><mn>1</mn></msub><mspace width="1.0mm"/><mo>&lt;</mo><mstyle mathvariant="monospace"><mtext>:</mtext></mstyle><mspace width="1.0mm"/><mi>I</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>T</mi><mn>2</mn></msub><mspace width="1.0mm"/><mo>&lt;</mo><mstyle mathvariant="monospace"><mtext>:</mtext></mstyle><mspace width="1.0mm"/><mi>I</mi></math> is true. We should define that as well (if it is not already defined). Cf [<a href="#King13a">King13a(p.3.2.4/5)</a>]
</div>
<div class="footnote" id="_footnote_23">
<a href="types.html#_footnoteref_23">23</a>. See Example <a href="types.html#ex:class-hierarchy">Type Examples, Class Hierarchy</a> for class definitions.
</div>
<div class="footnote" id="_footnote_24">
<a href="types.html#_footnoteref_24">24</a>. see "Covariance and contravariance with unions and intersections" at <a href="http://ceylon-lang.org/documentation/1.1/tour/generics/" class="bare">http://ceylon-lang.org/documentation/1.1/tour/generics/</a>
</div>
<div class="footnote" id="_footnote_25">
<a href="types.html#_footnoteref_25">25</a>. The classifier type is, in fact, the <code>type type</code> or <code>metatype</code> of a type. We use the term classifier type in the specification to avoid the bogus <code>type type</code> terminology.
</div>
<div class="footnote" id="_footnote_26">
<a href="types.html#_footnoteref_26">26</a>. The phenomenon is described in IDEBUG-263
</div>
<div class="footnote" id="_footnote_27">
<a href="classifiers.html#_footnoteref_27">27</a>. E.g., for given <code class="language-n4js">class A{ foo(A):A{}} class B{ foo(B):B{}}</code>, a class C could be defined as <code class="language-n4js">class C{ foo(union{A,B}):intersection{A,B}{}}</code>. In this case it would then be a syntactical problem (and even worse - a conceptual problem) of how to call the super methods defined in A and Bfrom C.
</div>
<div class="footnote" id="_footnote_28">
<a href="classifiers.html#_footnoteref_28">28</a>. <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mi>c</mi><mi>c</mi><mi>e</mi><mi>s</mi><mi>s</mi><mi>o</mi><mi>r</mi><mi>P</mi><mi>a</mi><mi>i</mi><mi>r</mi><mfenced close=")" open="("><msub><mi>m</mi><mn>1</mn></msub><msub><mi>m</mi><mn>2</mn></msub></mfenced></math> is defined as follows: <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced close=")" open="("><mrow><mi>μ</mi><mfenced close=")" open="("><msub><mi>m</mi><mn>1</mn></msub></mfenced><mo>=</mo><mstyle mathvariant="monospace"><mtext>getter</mtext></mstyle><mo>∧</mo><mi>μ</mi><mfenced close=")" open="("><msub><mi>m</mi><mn>2</mn></msub></mfenced><mo>=</mo><mstyle mathvariant="monospace"><mtext>setter</mtext></mstyle></mrow></mfenced><mo>∨</mo><mfenced close=")" open="("><mrow><mi>μ</mi><mfenced close=")" open="("><msub><mi>m</mi><mn>1</mn></msub></mfenced><mo>=</mo><mstyle mathvariant="monospace"><mtext>setter</mtext></mstyle><mo>∧</mo><mi>μ</mi><mfenced close=")" open="("><msub><mi>m</mi><mn>2</mn></msub></mfenced><mo>=</mo><mstyle mathvariant="monospace"><mtext>getter</mtext></mstyle></mrow></mfenced></math>
</div>
<div class="footnote" id="_footnote_29">
<a href="classifiers.html#_footnoteref_29">29</a>. not yet implemented
</div>
<div class="footnote" id="_footnote_30">
<a href="classifiers.html#_footnoteref_30">30</a>. In order to emulate method overloading, union types are to be used.
</div>
<div class="footnote" id="_footnote_31">
<a href="classifiers.html#_footnoteref_31">31</a>. [<a href="#ECMA15a">ECMA15a(p.p214)</a>], <code>ClassBody : ClassElementList</code> indicates that it is possible to have the same name for instance and static members.
</div>
<div class="footnote" id="_footnote_32">
<a href="classifiers.html#_footnoteref_32">32</a>. version 4.0
</div>
<div class="footnote" id="_footnote_33">
<a href="classifiers.html#_footnoteref_33">33</a>. This cannot be done w/o <code>null</code>/<code>undefined</code> analysis
</div>
<div class="footnote" id="_footnote_34">
<a href="classifiers.html#_footnoteref_34">34</a>. This is required, because in Javascript a getter shadows a corresponding setter defined further up in the prototype chain; likewise a setter shadows a corresponding getter.
</div>
<div class="footnote" id="_footnote_35">
<a href="classifiers.html#_footnoteref_35">35</a>. Thus, the type of one accessor is not used to infer the type of the other one. E.g., from <code>set x(string s)</code>, we cannot infer <code>get x()</code> to return <code>string</code> — instead, the getter is inferred to return <code>any</code>.
</div>
<div class="footnote" id="_footnote_36">
<a href="classifiers.html#_footnoteref_36">36</a>. The technical reason for this rule is the way properties are stored in JavaScript. Take for an example subclass-write access : <code class="language-n4js">class C { static f="a";}</code> with <code class="language-n4js">class D extends C { }</code>. Now the data field <code>f</code> on <code>C</code> can also be queried using <code>D</code> (<code class="language-n4js">var q=D.f;</code>) but writing (<code class="language-n4js">D.f="b";</code>) would introduce a newly created property <code>f</code> on class <code>D</code>, which differs from the one defined on <code>C</code>. It would do this without explicitly overriding the inherited property. Subsequent reads to <code class="language-n4js">D.f</code> would route to this ’accidentally’ introduced property. Such a behavior would not be expected and therefore has been disallowed. Note that this write restriction applies to data-fields and to field setters.
</div>
<div class="footnote" id="_footnote_37">
<a href="classifiers.html#_footnoteref_37">37</a>. There had been the idea of preventing static members of being consumed. However, this would break the type subtype relation.
</div>
<div class="footnote" id="_footnote_38">
<a href="classifiers.html#_footnoteref_38">38</a>. <code>C</code> could either be a class or an interface.
</div>
<div class="footnote" id="_footnote_39">
<a href="classifiers.html#_footnoteref_39">39</a>. As defined in <a href="functions.html#_function-type">Function Type</a> for function types.
</div>
<div class="footnote" id="_footnote_40">
<a href="classifiers.html#_footnoteref_40">40</a>. This kind of typing is used by TypeScript only. By defining a structural typed classifier or reference, it basically behaves as it would behave – without that modifier – in TypeScript.
</div>
<div class="footnote" id="_footnote_41">
<a href="classifiers.html#_footnoteref_41">41</a>. We enforce programmers of N4JS to use nominal typing, therefore, it is not possible to bypass that principle by declaring a type as structural for normally defined classes (except those explicitly derived from <code>N4Object</code>).
</div>
<div class="footnote" id="_footnote_42">
<a href="classifiers.html#_footnoteref_42">42</a>. Since this is already prevented by the parser (the tilde is interpreted as an unary operator), error messages are likely to look a little strange.
</div>
<div class="footnote" id="_footnote_43">
<a href="classifiers.html#_footnoteref_43">43</a>. Note that due to this relaxed definition (compared with definition-site structural types) it is possible to pass an <code>N4Object</code> instance to a function of method with a declared structural type parameter.
</div>
<div class="footnote" id="_footnote_44">
<a href="classifiers.html#_footnoteref_44">44</a>. This is already constrained by the grammar.
</div>
<div class="footnote" id="_footnote_45">
<a href="functions.html#_footnoteref_45">45</a>. see <a href="http://tc39.github.io/ecmascript-asyncawait/" class="bare">http://tc39.github.io/ecmascript-asyncawait/</a>
</div>
<div class="footnote" id="_footnote_46">
<a href="functions.html#_footnoteref_46">46</a>. Even in this case, the function will actually be called with the callback method which is then created by the transpiler. However, the callback is not given in the N4JS code).
</div>
<div class="footnote" id="_footnote_47">
<a href="conversions_and_reflection.html#_footnoteref_47">47</a>. <code>i</code> iterates over all boundaries
</div>
<div class="footnote" id="_footnote_48">
<a href="conversions_and_reflection.html#_footnoteref_48">48</a>. <code>i</code> iterates over all type args
</div>
<div class="footnote" id="_footnote_49">
<a href="expressions.html#_footnoteref_49">49</a>. Only <code class="language-n4js">Function</code> implements the ECMAScript specification property <code class="language-n4js">hasInstance</code>. Thus instanceof expressions are rewritten by the compiler for other types. Note that a reference to a class returns the constructor type, which actually is a function itself.
</div>
<div class="footnote" id="_footnote_50">
<a href="expressions.html#_footnoteref_50">50</a>. Includes interfaces, since an interface type reference is a subtype of object type reference: <math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathvariant="monospace"><mtext>type</mtext></mstyle><mfenced close="}" open="{"><mstyle mathvariant="monospace"><mtext>Interface</mtext></mstyle></mfenced><mo>&lt;</mo><mi>:</mi><mstyle mathvariant="monospace"><mtext>type</mtext></mstyle><mfenced close="}" open="{"><mstyle mathvariant="monospace"><mtext>Object</mtext></mstyle></mfenced></math>
</div>
<div class="footnote" id="_footnote_51">
<a href="expressions.html#_footnoteref_51">51</a>. See [<a href="#ECMA15a">ECMA15a</a>], Chapter 12.3.5 "The Super Keyword"; note the use of <code>HomeObject</code> instead of <code>thisValue</code>; also see this blog - <a href="http://www.2ality.com/2011/11/super-references.html" class="bare">http://www.2ality.com/2011/11/super-references.html</a>.
</div>
<div class="footnote" id="_footnote_52">
<a href="expressions.html#_footnoteref_52">52</a>. <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e</mi><msup><mo>∈</mo><mo>*</mo></msup><mi>c</mi></math> is the transitive version of <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e</mi><mo>∈</mo><mi>c</mi></math>, that is, it <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e</mi></math> directly or indirectly contained in <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>c</mi></math>.
</div>
<div class="footnote" id="_footnote_53">
<a href="statements.html#_footnoteref_53">53</a>. available at: <a href="http://www.2ality.com/2013/06/iterators-generators.html" class="bare">http://www.2ality.com/2013/06/iterators-generators.html</a>
</div>
<div class="footnote" id="_footnote_54">
<a href="statements.html#_footnoteref_54">54</a>. For more details on module specifiers, see <a href="names.html#_qualified-names">Qualified Names</a>.
</div>
<div class="footnote" id="_footnote_55">
<a href="extended_fetaures.html#_footnoteref_55">55</a>. Further reading on <a href="appendix_a_acronyms.html#_acronyms">DI</a> Basics: [<a href="#Fowler04b">Fowler04b</a>; <a href="#Prasanna09a">Prasanna09a</a>], Verification [<a href="#Zhu13a">Zhu13a</a>; <a href="#Hudli13a">Hudli13a</a>], Frameworks [<a href="#Lesiecki08a">Lesiecki08a</a>; <a href="#Betts13a">Betts13a</a>; <a href="#Knol13a">Knol13a</a>; <a href="#Dagger">Dagger</a>]
</div>
<div class="footnote" id="_footnote_56">
<a href="extended_fetaures.html#_footnoteref_56">56</a>. Usually, only the <code>DIC</code> itself is created like that, e.g., <code class="language-n4js">var dic = N4Injector.of(DIC).create(DIC);</code>
</div>
<div class="footnote" id="_footnote_57">
<a href="extended_fetaures.html#_footnoteref_57">57</a>. Note that other frameworks may define other constraints, e.g., arbitrary keys.
</div>
<div class="footnote" id="_footnote_58">
<a href="extended_fetaures.html#_footnoteref_58">58</a>. Cf. a blog post about micro types - <a href="http://www.markhneedham.com/blog/2009/03/10/oo-micro-types/" class="bare">http://www.markhneedham.com/blog/2009/03/10/oo-micro-types/</a>, and tiny types - <a href="http://darrenhobbs.com/2007/04/11/tiny-types/" class="bare">http://darrenhobbs.com/2007/04/11/tiny-types/</a>
</div>
<div class="footnote" id="_footnote_59">
<a href="extended_fetaures.html#_footnoteref_59">59</a>. This restriction has two reasons: Firstly, user-defined types with implementations would require to ’bootstrap’ the polyfill, which is impossible to do automatically without serious constraints on bootstrap code in general. Secondly, instead of filling user-defined types, they can be subclasses. Mechanisms such as dependency injection could then solve almost all remaining problems.
</div>
<div class="footnote" id="_footnote_60">
<a href="plainjs.html#_footnoteref_60">60</a>. <a href="#_api-and-implementation-components">[_api-and-implementation-components]</a>
</div>
<div class="footnote" id="_footnote_61">
<a href="plainjs.html#_footnoteref_61">61</a>. Global basically means that the module defines no namespace on its own. Thus the annotation is a script/module related annotation.
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