bd374fd6fc
* Add Wasmtime-specific C API functions to return errors This commit adds new `wasmtime_*` symbols to the C API, many of which mirror the existing counterparts in the `wasm.h` header. These APIs are enhanced in a number of respects: * Detailed error information is now available through a `wasmtime_error_t`. Currently this only exposes one function which is to extract a string version of the error. * There is a distinction now between traps and errors during instantiation and function calling. Traps only happen if wasm traps, and errors can happen for things like runtime type errors when interacting with the API. * APIs have improved safety with respect to embedders where the lengths of arrays are now taken as explicit parameters rather than assumed from other parameters. * Handle trap updates * Update C examples * Fix memory.c compile on MSVC * Update test assertions * Refactor C slightly * Bare-bones .NET update * Remove bogus nul handling
78 lines
1.4 KiB
Rust
78 lines
1.4 KiB
Rust
//! This file defines the extern "C" API, which is compatible with the
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//! [Wasm C API](https://github.com/WebAssembly/wasm-c-api).
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#![allow(non_snake_case, non_camel_case_types, non_upper_case_globals)]
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// TODO complete the C API
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mod config;
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mod engine;
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mod error;
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mod r#extern;
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mod func;
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mod global;
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mod instance;
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mod linker;
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mod memory;
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mod module;
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mod r#ref;
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mod store;
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mod table;
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mod trap;
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mod types;
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mod val;
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mod vec;
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pub use crate::config::*;
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pub use crate::engine::*;
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pub use crate::error::*;
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pub use crate::func::*;
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pub use crate::global::*;
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pub use crate::instance::*;
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pub use crate::linker::*;
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pub use crate::memory::*;
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pub use crate::module::*;
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pub use crate::r#extern::*;
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pub use crate::r#ref::*;
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pub use crate::store::*;
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pub use crate::table::*;
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pub use crate::trap::*;
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pub use crate::types::*;
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pub use crate::val::*;
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pub use crate::vec::*;
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#[cfg(feature = "wasi")]
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mod wasi;
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#[cfg(feature = "wasi")]
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pub use crate::wasi::*;
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#[cfg(feature = "wat")]
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mod wat2wasm;
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#[cfg(feature = "wat")]
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pub use crate::wat2wasm::*;
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#[repr(C)]
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#[derive(Clone)]
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pub struct wasm_foreign_t {
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_unused: [u8; 0],
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}
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#[repr(C)]
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#[derive(Clone)]
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pub struct wasm_shared_module_t {
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_unused: [u8; 0],
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}
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struct HostInfoState {
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info: *mut std::ffi::c_void,
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finalizer: Option<extern "C" fn(arg1: *mut std::ffi::c_void)>,
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}
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impl Drop for HostInfoState {
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fn drop(&mut self) {
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if let Some(f) = &self.finalizer {
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f(self.info);
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}
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}
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}
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