84 releases (47 stable)

6.0.0 Apr 24, 2025
6.0.0-beta.1 Mar 7, 2025
6.0.0-alpha.2 Feb 26, 2025
5.0.6 May 2, 2025
1.0.0-alpha5 Nov 6, 2020

#1079 in WebAssembly

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124,665 downloads per month
Used in 287 crates (46 directly)

MIT OR Apache-2.0 WITH LLVM-exception

225KB
5K SLoC

wasmer-types Build Status Join Wasmer Slack MIT License

This library provides all the types and traits necessary to use WebAssembly easily anywhere.

Among other things, it defines the following types:

  • units like Pages or Bytes
  • types and values like I32, I64, F32, F64, ExternRef, FuncRef, V128, value conversions, ExternType, FunctionType etc.
  • native contains a set of trait and implementations to deal with WebAssembly types that have a direct representation on the host,
  • memory_view, an API to read/write memories when bytes are interpreted as particular types (i8, i16, i32 etc.)
  • indexes contains all the possible WebAssembly module indexes for various types
  • initializers for tables, data etc.
  • features to enable or disable some WebAssembly features inside the Wasmer runtime

Acknowledgments

This project borrowed some of the code for the entity structure from cranelift-entity. We decided to move it here to help on serialization/deserialization.

Please check Wasmer ATTRIBUTIONS to further see licenses and other attributions of the project.

Dependencies

~6MB
~131K SLoC