fq/format/wasm/wasm.md

Count opcode usage

$ fq '.sections[] | select(.id == "code_section") | [.. | .opcode? // empty] | count | map({key: .[0], value: .[1]}) | from_entries' file.wasm

List exports and imports

$ fq '.sections | {import: map(select(.id == "import_section").content.im.x[].nm.b), export: map(select(.id == "export_section").content.ex.x[].nm.b)}' file.wasm

Authors

• Takashi Oguma @bitbears-dev @0xb17bea125

References

• https://webassembly.github.io/spec/core/