*%(basename)s:9: CompileError: WebAssembly.Module(): Compiling function #0:"f" failed: expected 1 elements on the stack for fallthru, found 0 @+24
new WebAssembly.Module(builder.toBuffer());
^
CompileError: WebAssembly.Module(): Compiling function #0:"f" failed: expected 1 elements on the stack for fallthru, found 0 @+24
    at *%(basename)s:9:1