1.2 KiB
Description:
The wasm module is a pure V implementation of the WebAssembly bytecode module format,
available in the form of a builder.
It allows users to generate WebAssembly modules in memory.
With the V wasm module, users can create functions, opcodes, and utilize the entire wasm specification without the need for a large dependency like binaryen. All of this functionality is available within V itself, making the module a valuable resource for V developers seeking to build high-performance web applications.
The module is designed to generate a []u8, which can be written to a .wasm file
or executed in memory.
Examples are present in examples/wasm_codegen.
import wasm
import os
fn main() {
mut m := wasm.Module{}
mut func := m.new_function('add', [.i32_t, .i32_t], [.i32_t])
{
func.local_get(0) // | local.get 0
func.local_get(1) // | local.get 1
func.add(.i32_t) // | i32.add
}
m.commit(func, true) // `export: true`
mod := m.compile() // []u8
os.write_file_array('add.wasm', mod)!
}
This module does not perform verification of the WebAssembly output.
Use a tool like wasm-validate to validate, and wasm-dis to show a decompiled form.