wasmer_compiler/engine/
error.rs

1//! The WebAssembly possible errors
2use thiserror::Error;
3pub use wasmer_types::ImportError;
4#[cfg(not(target_arch = "wasm32"))]
5use wasmer_vm::Trap;
6
7/// The WebAssembly.LinkError object indicates an error during
8/// module instantiation (besides traps from the start function).
9///
10/// This is based on the [link error][link-error] API.
11///
12/// [link-error]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/LinkError
13#[derive(Error, Debug)]
14#[error("Link error: {0}")]
15pub enum LinkError {
16    /// An error occurred when checking the import types.
17    #[error("Error while importing {0:?}.{1:?}: {2}")]
18    Import(String, String, ImportError),
19
20    #[cfg(not(target_arch = "wasm32"))]
21    /// A trap ocurred during linking.
22    #[error("Trap occurred during linking: {0}")]
23    Trap(#[source] Trap),
24
25    /// Insufficient resources available for linking.
26    #[error("Insufficient resources: {0}")]
27    Resource(String),
28}
29
30/// An error while instantiating a module.
31///
32/// This is not a common WebAssembly error, however
33/// we need to differentiate from a `LinkError` (an error
34/// that happens while linking, on instantiation) and a
35/// Trap that occurs when calling the WebAssembly module
36/// start function.
37#[derive(Error, Debug)]
38pub enum InstantiationError {
39    /// A linking ocurred during instantiation.
40    #[error(transparent)]
41    Link(LinkError),
42
43    /// The module was compiled with a CPU feature that is not available on
44    /// the current host.
45    #[error("module compiled with CPU feature that is missing from host")]
46    CpuFeature(String),
47
48    /// A runtime error occured while invoking the start function
49    #[cfg(not(target_arch = "wasm32"))]
50    #[error(transparent)]
51    Start(Trap),
52}
wasmer_compiler/engine/error.rs

wasmer_compiler/engine/
error.rs
