wast2json

wast2json reads a file in the wasm spec test format, checks it for errors, and converts it to a JSON file and associated wasm binary files.

The options are as follows:

-v, --verbose

Use multiple times for more info

--help

Print this help message

--debug-parser

Turn on debugging the parser of wast files

--enable-exceptions

Enable Experimental exception handling

--disable-mutable-globals

Disable Import/export mutable globals

--enable-saturating-float-to-int

Enable Saturating float-to-int operators

--enable-sign-extension

Enable Sign-extension operators

--disable-simd

Disable SIMD support

--enable-threads

Enable Threading support

--enable-multi-value

Enable Multi-value

--enable-tail-call

Enable Tail-call support

-o, --output=FILE

output wasm binary file

-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

Parse spec-test.wast, and write files to spec-test.json. Modules are written to spec-test.0.wasm, spec-test.1.wasm, etc.

wasm-interp(1), wasm-objdump(1), wasm-opcodecnt(1), wasm-strip(1), wasm-validate(1), wasm2c(1), wasm2wat(1), wat-desugar(1), wat2wasm(1), spectest-interp(1)

If you find a bug, please report it at
https://github.com/WebAssembly/wabt/issues.