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This repository serves as the programming language design repository for C#, containing the official language specification and the technical standards governing its grammar, type safety, and memory management. It functions as a collaborative space for the formal design and evolution of the language. The project manages a community-driven evolution process, utilizing a public proposal backlog to debate and adopt new features. This involves formal syntax prototyping and the engineering of the type system to refine the language's behavior and implementation. The scope of the specification cove

This is an ECMAScript proposal that introduces a pipeline operator for JavaScript, enabling left-to-right expression chaining with a dedicated placeholder token to reference the previous step's value. The proposal defines a syntax-only transformation that desugars to standard JavaScript, requiring no new runtime support or engine primitives. The pipeline operator allows chaining operations sequentially, passing each result to the next step in natural reading order. It includes a null-safe variant that short-circuits on nullish values, returning them unchanged and skipping remaining steps. Eac

This repository is a collection of practical code snippets and implementation patterns for Flutter and Dart. It serves as a comprehensive guide and reference for asynchronous programming, state management patterns, and UI component design. The project provides advanced language reference material covering generics, reflection, factory constructors, and null-aware operators. It also includes specific utilities for manipulating Dart collections, such as helper methods for transforming and filtering maps, lists, and iterables. The coverage extends to high-level capabilities including asynchrono

ESTree est un schéma formel et un ensemble d'interfaces d'objets utilisés pour représenter le code source JavaScript comme un arbre de syntaxe abstraite standardisé. Il sert de format d'arbre commun et de standard de parsing pour assurer l'interopérabilité entre différents parsers JavaScript et outils de transformation. La spécification fournit un moyen cohérent de modéliser les constructions du langage, incluant les déclarations, les expressions et les déclarations de modules. Elle inclut des représentations détaillées pour les fonctionnalités modernes du langage telles que les classes, les identifiants privés et la logique de court-circuit comme le nullish coalescing et l'optional chaining. Le projet couvre une large surface d'outillage linguistique, incluant la modélisation de systèmes de modules avec imports dynamiques et alias d'export, la gestion des littéraux entiers larges, et le support d'extensions de syntaxe expérimentales pour les propositions de langage au stade précoce. Il définit également comment mapper les nœuds de l'arbre aux coordonnées sources originales pour un suivi précis de la localisation. Ce modèle standardisé facilite l'analyse de code statique, la transformation automatisée de code source et l'interopérabilité générale des outils de compilation.

Helmfile is a declarative tool for managing Kubernetes Helm releases across multiple environments. It defines the desired state of releases in version-controlled YAML files and synchronizes the cluster to match that state, acting as both a release manager and a state sync orchestrator. The tool layers environment-specific values, secrets, and lifecycle hooks onto shared release definitions, enabling consistent multi-environment deployments. Helmfile distinguishes itself through several integrated capabilities: it generates separate dependency lockfiles per environment for staged rollout of ch

govaluate is a Go expression evaluator and runtime logic parser. It functions as a dynamic rule engine that converts string-based expressions into executable operations, allowing for the calculation of mathematical and logical expressions at runtime. The library enables the execution of business rules and custom formulas without recompiling source code. It supports extending evaluation behavior through the injection of external parameters and the execution of user-defined custom functions. The system provides capabilities for dynamic data validation, including regular expression matching and