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Viewing / Editing File: read-wasm.js

if (typeof fetch === "function") {
  // Web version of reading a wasm file into an array buffer.

let mappingsWasmUrl = null;

module.exports = function readWasm() {
    if (typeof mappingsWasmUrl !== "string") {
      throw new Error("You must provide the URL of lib/mappings.wasm by calling " +
                      "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " +
                      "before using SourceMapConsumer");
    }

return fetch(mappingsWasmUrl)
      .then(response => response.arrayBuffer());
  };

module.exports.initialize = url => mappingsWasmUrl = url;
} else {
  // Node version of reading a wasm file into an array buffer.
  const fs = require("fs");
  const path = require("path");

module.exports = function readWasm() {
    return new Promise((resolve, reject) => {
      const wasmPath = path.join(__dirname, "mappings.wasm");
      fs.readFile(wasmPath, null, (error, data) => {
        if (error) {
          reject(error);
          return;
        }

resolve(data.buffer);
      });
    });
  };

module.exports.initialize = _ => {
    console.debug("SourceMapConsumer.initialize is a no-op when running in node.js");
  };
}

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Viewing / Editing File: read-wasm.js

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