This commit updates the wasm-tools family of crates, notably pulling in the refactorings and updates from bytecodealliance/wasm-tools#621 for the latest iteration of the component model. This commit additionally updates all support for the component model for these changes, notably: * Many bits and pieces of type information was refactored. Many `FooTypeIndex` namings are now `TypeFooIndex`. Additionally there is now `TypeIndex` as well as `ComponentTypeIndex` for the two type index spaces in a component. * A number of new sections are now processed to handle the core and component variants. * Internal maps were split such as the `funcs` map into `component_funcs` and `funcs` (same for `instances`). * Canonical options are now processed individually instead of one bulk `into` definition. Overall this was not a major update to the internals of handling the component model in Wasmtime. Instead this was mostly a surface-level refactoring to make sure that everything lines up with the new binary format for components. * All text syntax used in tests was updated to the new syntax.
Fuzzing Infrastructure for Wasmtime
This crate provides test case generators and oracles for use with fuzzing.
These generators and oracles are generally independent of the fuzzing engine
that might be using them and driving the whole fuzzing process (e.g. libFuzzer
or AFL). As such, this crate does not contain any actual fuzz targets
itself. Those are generally just a couple lines of glue code that plug raw input
from (for example) libFuzzer into a generator, and then run one or more
oracles on the generated test case.
If you're looking for the actual fuzz target definitions we currently have, they
live in wasmtime/fuzz/fuzz_targets/* and are driven by cargo fuzz and
libFuzzer.