Add node modules and compiled JavaScript from main

node_modules/jsdom/lib/jsdom/living/file-api/Blob-impl.js

@@ -0,0 +1,95 @@
+"use strict";
+const Blob = require("../generated/Blob");
+const { isArrayBuffer } = require("../generated/utils");
+
+function convertLineEndingsToNative(s) {
+  // jsdom always pretends to be *nix, for consistency.
+  // See also https://github.com/jsdom/jsdom/issues/2396.
+  return s.replace(/\r\n|\r|\n/g, "\n");
+}
+
+exports.implementation = class BlobImpl {
+  constructor(globalObject, args) {
+    const parts = args[0];
+    const properties = args[1];
+
+    const buffers = [];
+
+    if (parts !== undefined) {
+      for (const part of parts) {
+        let buffer;
+        if (isArrayBuffer(part)) {
+          buffer = Buffer.from(part);
+        } else if (ArrayBuffer.isView(part)) {
+          buffer = Buffer.from(part.buffer, part.byteOffset, part.byteLength);
+        } else if (Blob.isImpl(part)) {
+          buffer = part._buffer;
+        } else {
+          let s = part;
+          if (properties.endings === "native") {
+            s = convertLineEndingsToNative(part);
+          }
+          buffer = Buffer.from(s);
+        }
+        buffers.push(buffer);
+      }
+    }
+
+    this._buffer = Buffer.concat(buffers);
+    this._globalObject = globalObject;
+
+    this.type = properties.type;
+    if (/[^\u0020-\u007E]/.test(this.type)) {
+      this.type = "";
+    } else {
+      this.type = this.type.toLowerCase();
+    }
+  }
+
+  get size() {
+    return this._buffer.length;
+  }
+
+  slice(start, end, contentType) {
+    const { size } = this;
+
+    let relativeStart;
+    let relativeEnd;
+    let relativeContentType;
+
+    if (start === undefined) {
+      relativeStart = 0;
+    } else if (start < 0) {
+      relativeStart = Math.max(size + start, 0);
+    } else {
+      relativeStart = Math.min(start, size);
+    }
+    if (end === undefined) {
+      relativeEnd = size;
+    } else if (end < 0) {
+      relativeEnd = Math.max(size + end, 0);
+    } else {
+      relativeEnd = Math.min(end, size);
+    }
+
+    if (contentType === undefined) {
+      relativeContentType = "";
+    } else {
+      // sanitization (lower case and invalid char check) is done in the
+      // constructor
+      relativeContentType = contentType;
+    }
+
+    const span = Math.max(relativeEnd - relativeStart, 0);
+
+    const buffer = this._buffer;
+    const slicedBuffer = buffer.slice(
+      relativeStart,
+      relativeStart + span
+    );
+
+    const blob = Blob.createImpl(this._globalObject, [[], { type: relativeContentType }], {});
+    blob._buffer = slicedBuffer;
+    return blob;
+  }
+};