Function consolePrinter

  • consolePrinter(
        __namedParameters?: {
            stdout: (str: string) => void;
            stderr: (str: string) => void;
        },
    ): { addToImports(imports: Imports): void; setMemory(m: Memory): void }

    Create a console printer that can be used as an overlay of WASI imports. See the example below for how to use it.

    const imports = {
     "wasi_snapshot_preview1": wasi.wasiImport,
    }
    const printer = consolePrinter();
    printer.addToImports(imports);

    const instance = await WebAssembly.instantiate(module, imports);
    printer.setMemory(instance.exports.memory);

    Note that the stdout and stderr functions are called with text, not bytes. This means that bytes written to stdout/stderr will be decoded as UTF-8 and then passed to the stdout/stderr functions every time a write occurs without buffering.

    Parameters

    • __namedParameters: { stdout: (str: string) => void; stderr: (str: string) => void } = ...

    Returns { addToImports(imports: Imports): void; setMemory(m: Memory): void }

    An object that can be used as an overlay of WASI imports.

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