wast2json —
convert a file in the wasm spec test format to a JSON file and
associated wasm binary files
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.
$ wast2json spec-test.wast -o
spec-test.json