89e7d56120
Define `WasmError` (and an accompanying `WasmResult`) to represent errors translating WebAssembly functions. Make `translate_call` and related functions return `WasmResult`s so that embedders have the flexibility to reject features they don't support. Move `InvalidInput` out of `CtonError` and into `WasmError`, where it's now named `InvalidWebAssembly`, as it's a WebAssembly-specific error condition. Also extend it to preserve the original error message and bytecode offset.
72 lines
2.3 KiB
Rust
72 lines
2.3 KiB
Rust
//! Performs translation from a wasm module in binary format to the in-memory form
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//! of Cretonne IR. More particularly, it translates the code of all the functions bodies and
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//! interacts with an environment implementing the
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//! [`ModuleEnvironment`](trait.ModuleEnvironment.html)
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//! trait to deal with tables, globals and linear memory.
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//!
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//! The crate provides a `DummyEnvironment` struct that will allow to translate the code of the
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//! functions but will fail at execution.
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//!
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//! The main function of this module is [`translate_module`](fn.translate_module.html).
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#![deny(missing_docs, trivial_numeric_casts, unused_extern_crates)]
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#![warn(unused_import_braces)]
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#![cfg_attr(feature = "std", warn(unstable_features))]
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#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
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#![cfg_attr(feature = "cargo-clippy",
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allow(new_without_default, new_without_default_derive))]
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#![cfg_attr(feature="cargo-clippy", warn(
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float_arithmetic,
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mut_mut,
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nonminimal_bool,
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option_map_unwrap_or,
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option_map_unwrap_or_else,
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print_stdout,
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unicode_not_nfc,
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use_self,
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))]
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#![cfg_attr(not(feature = "std"), no_std)]
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#![cfg_attr(not(feature = "std"), feature(alloc))]
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#[cfg(not(feature = "std"))]
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#[macro_use]
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extern crate alloc;
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#[allow(unused_extern_crates)]
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#[cfg(not(feature = "std"))]
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extern crate hashmap_core;
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#[macro_use(dbg)]
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extern crate cretonne_codegen;
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extern crate cretonne_frontend;
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extern crate wasmparser;
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extern crate failure;
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#[macro_use]
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extern crate failure_derive;
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mod code_translator;
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mod environ;
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mod func_translator;
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mod module_translator;
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mod sections_translator;
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mod state;
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mod translation_utils;
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pub use environ::{DummyEnvironment, FuncEnvironment, GlobalValue, ModuleEnvironment};
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pub use func_translator::FuncTranslator;
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pub use module_translator::translate_module;
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pub use translation_utils::{FunctionIndex, Global, GlobalIndex, GlobalInit, Memory, MemoryIndex,
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SignatureIndex, Table, TableIndex};
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#[cfg(not(feature = "std"))]
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mod std {
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pub use alloc::vec;
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pub use alloc::string;
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pub use core::{u32, i32, str, cmp};
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pub mod collections {
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pub use hashmap_core::{HashMap, map as hash_map};
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}
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}
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