FastScript .NET

Fast ReportsCode Editors.NET

Cross-platform C# scripting library for environments without code generation.

  • Supports a wide range of C# language features for flexible scripting within .NET applications.
  • Operates in constrained environments like Native AOT, WASM, and iOS without generating code.
  • Includes security controls to restrict unsafe API access and optimizes memory usage.
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FastScript .NET is a versatile library designed to execute complex C# scripts dynamically within applications, especially where code generation is restricted. It provides broad support for C# language features, enabling scripts to integrate seamlessly across platforms like Native AOT, WebAssembly, and iOS. The library emphasizes efficiency through memory caching and enhances security by managing API access restrictions, making it well-suited for projects requiring embedded scripting capabilities without runtime compilation.

Integration into Projects

Easily add FastScript .NET to your .NET applications via NuGet or direct download, requiring no additional modules or extensions.

Non-Code-Generation Execution

Implements a lexer–parser–interpreter model for script execution, avoiding runtime code generation and enabling operation in restrictive environments such as Native AOT, WebAssembly, and iOS.

Wide C# Language Support

Supports a broad range of C# language features, including classes, generics, delegates, nullable types, and top-level statements, with certain limitations.

Memory Optimization

Uses caching for compiled scripts instead of generating separate assemblies, helping reduce memory usage and improve resource efficiency.

Security Controls

Allows restriction of unsafe API usage, including file system and network operations, by limiting access to assemblies, namespaces, or specific types.

Compact Library Size

The lightweight library footprint makes it suitable for use in resource-constrained environments without significant overhead.

Cross-Platform Compatibility

Designed for use across multiple platforms, enabling scripting capabilities within desktop, mobile, and web applications supported by .NET.

Host Interaction

Script-defined classes integrate with the host application context, allowing method overrides such as ToString and Equals for controlled interaction behavior.

Support for Native AOT Challenges

Requires explicit availability of types to accommodate tree-shaking in Native AOT environments, helping ensure required types are preserved during compilation.

Generics and Delegates

Supports the use of host-defined generic types and delegates within scripts, with certain limitations on generic type creation and delegate interaction.

Product Compatibility

Review the details below to ensure this product is supported within your environment.

Component Type

  • .NET