Crate use_wasm_binary 

use-wasm-binary

WebAssembly binary format primitives for RustUse. This crate checks magic bytes and version bytes without parsing full Wasm binaries.

Example

use use_wasm_binary::{looks_like_wasm_binary, validate_wasm_header};

let bytes = b"\0asm\x01\0\0\0";
let header = validate_wasm_header(bytes).expect("valid header");

assert!(looks_like_wasm_binary(bytes));
assert_eq!(header.version(), 1);

Scope

• Magic bytes, version bytes, and minimal header validation.
• Helpers for byte slices that look like Wasm binaries.

Non-goals

• No full binary decoding.
• No validation beyond the header.

License

Licensed under either of the following, at your option:

• Apache License, Version 2.0
• MIT license

Structs

WasmBinaryHeader

Minimal WebAssembly binary header metadata.

Enums

WasmBinaryError

Error returned when a WebAssembly binary header is not recognized.

WasmBinaryFormat

Coarse WebAssembly binary format marker.

Constants

WASM_BINARY_HEADER_LEN

The byte length of a minimal WebAssembly binary header.

WASM_MAGIC_BYTES

WebAssembly binary magic bytes: ‘\0asm’.

WASM_VERSION_1_BYTES

WebAssembly version 1 encoded as little-endian bytes.

Functions

has_wasm_magic

Returns ‘true’ when the byte slice starts with the WebAssembly magic bytes.

looks_like_wasm_binary

Returns ‘true’ when the byte slice has the magic bytes and version-1 header.

parse_wasm_binary_header

Parses a minimal WebAssembly binary header.

validate_wasm_binary_header

Validates a minimal WebAssembly binary header.

validate_wasm_header

Validates a minimal WebAssembly binary header.