* Update the top-level README.md and embedding documentation.
wasmtime-api is now the primary external API crate, so recommend that
instead of wasmtime-jit.
Also, enable wasmtime-api's C API by default, so that it shows up on
docs.rs, and to make it easier to use.
And, add basic embedding documentation and link to it from the
README.md. Credit to @yurydelendik for the content.
* Use the new wasm-c-api URL.
* Don't pass --features wasm-c-api, as it is now on by default.
This commit implements registering unwind information for JIT functions on
Windows so that the operating system can both walk and unwind stacks containing
JIT frames.
Currently this only works with Cranelift as lightbeam does not emit unwind
information yet.
This commit also resets the stack guard page on Windows for stack overflow
exceptions, allowing reliable stack overflow traps.
With these changes, all previously disabled test suite tests (not including
the multi-value tests) on Windows are now passing.
Fixes#291.
* Migrate from failure to thiserror and anyhow
The failure crate invents its own traits that don't use
std::error::Error (because failure predates certain features added to
Error); this prevents using ? on an error from failure in a function
using Error. The thiserror and anyhow crates integrate with the standard
Error trait instead.
This change does not attempt to semantically change or refactor the
approach to error-handling in any portion of the code, to ensure that
the change remains straightforward to review. Modules using specific
differentiated error types move from failure_derive and derive(Fail) to
thiserror and derive(Error). Modules boxing all errors opaquely move
from failure::Error to anyhow. Modules using String as an error type
continue to do so. Code using unwrap or expect continues to do so.
Drop Display implementations when thiserror can easily derive an
identical instance.
Drop manual traversal of iter_causes; anyhow's Debug instance prints the
chain of causes by default.
Use anyhow's type alias anyhow::Result<T> in place of
std::result::Result<T, anyhow::Error> whenever possible.
* wasm2obj: Simplify error handling using existing messages
handle_module in wasm2obj manually maps
cranelift_codegen::isa::LookupError values to strings, but LookupError
values already have strings that say almost exactly the same thing.
Rely on the strings from cranelift.
* wasmtime: Rely on question-mark-in-main
The main() wrapper around rmain() completely matches the behavior of
question-mark-in-main (print error to stderr and return 1), so switch to
question-mark-in-main.
* Update to walrus 0.13 and wasm-webidl-bindings 0.6
Both crates switched from failure to anyhow; updating lets us avoid a
translation from failure to anyhow within wasmtime-interface-types.
Fix what looks like a copy-paste issue in wasmtime-api/src/module.rs,
which led to calling reserve_exact on one vector before pushing that
many elements into another.
This adds a `--always-lightbeam` option as well as an `--always-cranelift`
option, to allow the compilation strategy to be selected via the
command-line. This also enables regular testing for Lightbeam.
This fixes the memory leaks in the following functions which should not be
returning "owned" pointers:
* `wasm_extern_as_func`
* `wasm_func_as_extern`
* `wasm_extern_as_global`
* `wasm_global_as_extern`
* `wasm_extern_as_memory`
* `wasm_extern_as_table`
Additionally, this commit implements the `wasm_memory_as_extern` and
`wasm_table_as_extern` functions.
Fixes#394.
This commit implements populating the table imports of a module from the API.
It also allows for `anyref` in table types as per the reference types proposal.
This PR fixes the borrow scope of store in the `WrappedCallable` impl of
`WasmTimeFn` such that it does not remain borrowed across the call to
`wasmtime_call_trampoline`. By limiting the scope of the borrow, the
implementation can be reentered if an exported function calls an imported
function, which in turn calls another exported function.
Fixes#365.
