wasmtools
A tool to convert between WebAssembly and WAT.
wasm
wat
parser
#AdUhTkJm/wasmtools
This is a parser and converted of WebAssembly file. It is far from complete; see current progress section to view the work done.
Because of Moonbit constraints, all vectors cannot exceed 2^31 elements long, while the specification actually requires support up to 2^32. I believe it is uncommon that we will encounter files this large.
#Usage
Usage:
let binary = // The binary WASM source
let parser = Parser::wasm(binary);
// Gives a Module that contains various sections.
// You can refer to the WebAssembly specification to understand their meanings.
let module = parser.parse_module();
// The `Show` trait is implemented. The module is shown in WAT form.
println(module);Therefore, if you don't need to examine the interals of the WebAssembly module, you can just use it as a WASM -> WAT converter. Parsing and emission for the other direction is still under development.
#Current progress
This supports only the main WASM 2.0 standard. Only the exception extension is supported: if you want to experiment with output from Moonbit compiler, be sure to compile with wasm backend rather than wasm-gc.
This now parses only 3 sections, namely the type section (0), import section (1) and tag section (13). The project is under active development and parsing for more sections will be added in the future.
GPL-3.0-or-later
Updated last year
42 downloads