wat2wasm - Man Page

translate from WebAssembly text format to the WebAssembly binary format

Examples (TL;DR)

Parse and check a file for errors: wat2wasm file.wat
Write the output binary to a given file: wat2wasm file.wat -o file.wasm
Display simplified representation of every byte: wat2wasm -v file.wat

tldr.sh

Synopsis

wat2wasm

[options] file

Description

wat2wasm Read a file in the wasm text format, check it for errors, and convert it to the wasm binary format.

The options are as follows:

--help: Print this help message
--version: Print version information
-v, --verbose: Use multiple times for more info
--debug-parser: Turn on debugging the parser of wat files
-d, --dump-module: Print a hexdump of the module to stdout
--enable-exceptions: Enable Experimental exception handling
--disable-mutable-globals: Disable Import/export mutable globals
--disable-saturating-float-to-int: Disable Saturating float-to-int operators
--disable-sign-extension: Disable Sign-extension operators
--disable-simd: Disable SIMD support
--enable-threads: Enable Threading support
--enable-function-references: Enable Typed function references
--disable-multi-value: Disable Multi-value
--enable-tail-call: Enable Tail-call support
--disable-bulk-memory: Disable Bulk-memory operations
--disable-reference-types: Disable Reference types (externref)
--enable-annotations: Enable Custom annotation syntax
--enable-code-metadata: Enable Code metadata
--enable-gc: Enable Garbage collection
--enable-memory64: Enable 64-bit memory
--enable-multi-memory: Enable Multi-memory
--enable-extended-const: Enable Extended constant expressions
--enable-all: Enable all features
-o, --output=FILE: Output wasm binary file. Use "-" to write to stdout.
-r, --relocatable: Create a relocatable wasm binary (suitable for linking with e.g. lld)
--no-canonicalize-leb128s: Write all LEB128 sizes as 5-bytes instead of their minimal size
--debug-names: Write debug names to the generated binary file
--no-check: Don't check for invalid modules