js_interpreter 0.0.2

A comprehensive, pure Dart JavaScript interpreter supporting ES6+ features. Perfect for embedding JavaScript execution in Dart/Flutter applications.

0.0.2

Features

• ES2024 Support: Implemented Explicit Resource Management (using and await using declarations).
• ES2015 Support: Added Tail Call Optimization (TCO).
• Core Improvements:
  • Implemented proper with statement environment handling and Symbol.unscopables support.
  • Enhanced Promise microtask queue and async function execution logic.
  • Added support for dynamic imports.
  • Improved Function constructor to support return statements in dynamically created functions.

Compliance & Bug Fixes

• Parser & Syntax:
  • Added comprehensive "Early Errors" validation for functions, classes, and loops.
  • Fixed Automatic Semicolon Insertion (ASI) to correctly handle all Unicode line terminators (LF, CR, LS, PS).
  • Improved validation for break and continue labels.
  • Fixed strict mode inheritance in eval() and strict mode-specific validations.
• Data Models:
  • Improved JSValue to Dart Map/List conversion with support for enumerable properties and recursive conversion.
  • Refined error object detection logic.
• Execution:
  • Fixed completion values for control structures (blocks, loops, switch).
  • Improved lexical scoping for let and const in for loops and switch statements.
  • Fixed this binding in async functions and arrow functions.

Testing

• Significantly improved test262 test runner compatibility.
• Fixed numerous bugs discovered through test262 compliance testing.

0.0.1

• Initial version.