NAME

wasm-stats — show stats for a module

SYNOPSIS

wasm-stats [options] file ...

wasm-stats Read a file in the wasm binary format, and show stats.

The options are as follows:

--help: Print a help message
--version: Print version information
-v, --verbose: Use multiple times for more info
--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=FILENAME: Output file for the opcode counts, by default use stdout
-c, --cutoff=N: Cutoff for reporting counts less than N
-s, --separator=SEPARATOR: Separator text between element and count when reporting counts

Parse binary file test.wasm and write opcode dist file test.dist

$ wasm-stats test.wasm -o
  test.dist