8 releases (breaking)
new 0.6.1 | Oct 21, 2024 |
---|---|
0.6.0 | Sep 5, 2024 |
0.5.0 | Jul 22, 2024 |
0.4.0 | Jul 9, 2024 |
0.0.0 | Apr 16, 2024 |
#22 in #component-model
2,297 downloads per month
Used in 7 crates
(5 directly)
245KB
5K
SLoC
A library for defining, encoding, and decoding WebAssembly composition graphs.
An example of composing two components together using a CompositionGraph
:
use wac_graph::{CompositionGraph, EncodeOptions, types::Package};
let mut graph = CompositionGraph::new();
// Register the packages with the graph
// It is assumed that `my:package1` exports a function named `a`,
// while `my:package2` imports a function named `b`.
let pkg = Package::from_file("my:package1", None, "package1.wasm", graph.types_mut())?;
let package1 = graph.register_package(pkg)?;
let pkg = Package::from_file("my:package2", None, "package2.wasm", graph.types_mut())?;
let package2 = graph.register_package(pkg)?;
// Instantiate package `my:package1`
let instantiation1 = graph.instantiate(package1);
// Alias the `a` export of the `my:package1` instance
let a = graph.alias_instance_export(instantiation1, "a")?;
// Instantiate package `my:package2`
let instantiation2 = graph.instantiate(package2);
// Set argument `b` of the instantiation of `my:package2` to `a`
graph.set_instantiation_argument(instantiation2, "b", a)?;
// Finally, encode the graph into a new component
let bytes = graph.encode(EncodeOptions::default())?;
Dependencies
~7MB
~117K SLoC