Lib.rs

This crate contains an implementation of WebAssembly Interface Types (abbreviated WIT). It is composed of 5 parts:

1. Types and Values: To represent the WIT types and values representations,
2. AST: To represent the WIT language as a tree (which is not really abstract). This is the central representation of the language.
3. Decoders: To read the AST from a particular data representation; for instance, decoders::binary::parse reads the AST from a binary.
4. Encoders: To write the AST into a particular format; for instance, encoders::wat writes the AST into a string representing WIT with its textual format.
5. Interpreter: WIT defines a concept called Adapters. An adapter contains a set of instructions. So, in more details, this module contains:
   • A very light and generic stack implementation, exposing only the operations required by the interpreter,
   • A stack-based interpreter, defined by:
     • A compiler that transforms a set of instructions into a set of executable instructions,
     • A stack,
     • A runtime that holds the “invocation inputs” (arguments of the interpreter), the stack, and the WebAssembly instance (which holds the exports, the imports, the memories, the tables etc.),
   • An hypothetic WebAssembly runtime, represented as a set of enums, types, and traits —basically this is the part a runtime should take a look to use the wasmer-interface-types crate—.