src/dawn/node/standalone/Polyfills.h

// Copyright 2026 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NODE_STANDALONE_POLYFILLS_H_
#define SRC_DAWN_NODE_STANDALONE_POLYFILLS_H_

#include <string>
#include <vector>

#include "src/dawn/node/interop/NodeAPI.h"

namespace dawn::node::standalone {

class EventLoop;
class FileBundle;

// Configuration options for polyfill registration.
struct PolyfillOptions {
    // Values reported by `process.argv`.
    std::vector<std::string> argv;

    // A bundle that stands in for the JavaScript's working directory: process.cwd() reports
    // `bundle_root`, relative paths resolve against it, and paths under it come only from `bundle`.
    // Other paths go to the disk. `bundle` must outlive the `env` passed to RegisterPolyfills().
    FileBundle* bundle = nullptr;
    std::string bundle_root;
};

// Registers Node.js and Web standard polyfills (console, process, fs, path, timers, DOM stubs)
// into the provided environment's global scope.
//
// `loop` runs the callbacks passed to setImmediate() and setTimeout(), and is what process.exit()
// stops. It must outlive `env`.
void RegisterPolyfills(Napi::Env env, EventLoop& loop, const PolyfillOptions& options = {});

}  // namespace dawn::node::standalone

#endif  // SRC_DAWN_NODE_STANDALONE_POLYFILLS_H_