Move fetch headers into its own file.

1 files changed, 1 insertions, 83 deletions

diff --git a/js/fetch.ts b/js/fetch.ts
index f4c7aaf81..16172b776 100644
--- a/js/fetch.ts
+++ b/js/fetch.ts
@@ -13,89 +13,7 @@ import * as msg from "gen/msg_generated";
 import * as domTypes from "./dom_types";
 import { TextDecoder } from "./text_encoding";
 import { DenoBlob } from "./blob";
-import { DomIterableMixin } from "./mixins/dom_iterable";
-
-// tslint:disable-next-line:no-any
-function isHeaders(value: any): value is domTypes.Headers {
-  return value instanceof Headers;
-}
-
-const headerMap = Symbol("header map");
-
-// ref: https://fetch.spec.whatwg.org/#dom-headers
-class HeadersBase {
-  private [headerMap]: Map<string, string>;
-
-  private _normalizeParams(name: string, value?: string): string[] {
-    name = String(name).toLowerCase();
-    value = String(value).trim();
-    return [name, value];
-  }
-
-  constructor(init?: domTypes.HeadersInit) {
-    if (init === null) {
-      throw new TypeError(
-        "Failed to construct 'Headers'; The provided value was not valid"
-      );
-    } else if (isHeaders(init)) {
-      this[headerMap] = new Map(init);
-    } else {
-      this[headerMap] = new Map();
-      if (Array.isArray(init)) {
-        for (const [rawName, rawValue] of init) {
-          const [name, value] = this._normalizeParams(rawName, rawValue);
-          const existingValue = this[headerMap].get(name);
-          this[headerMap].set(
-            name,
-            existingValue ? `${existingValue}, ${value}` : value
-          );
-        }
-      } else if (init) {
-        const names = Object.keys(init);
-        for (const rawName of names) {
-          const rawValue = init[rawName];
-          const [name, value] = this._normalizeParams(rawName, rawValue);
-          this[headerMap].set(name, value);
-        }
-      }
-    }
-  }
-
-  append(name: string, value: string): void {
-    const [newname, newvalue] = this._normalizeParams(name, value);
-    const v = this[headerMap].get(newname);
-    const str = v ? `${v}, ${newvalue}` : newvalue;
-    this[headerMap].set(newname, str);
-  }
-
-  delete(name: string): void {
-    const [newname] = this._normalizeParams(name);
-    this[headerMap].delete(newname);
-  }
-
-  get(name: string): string | null {
-    const [newname] = this._normalizeParams(name);
-    const value = this[headerMap].get(newname);
-    return value || null;
-  }
-
-  has(name: string): boolean {
-    const [newname] = this._normalizeParams(name);
-    return this[headerMap].has(newname);
-  }
-
-  set(name: string, value: string): void {
-    const [newname, newvalue] = this._normalizeParams(name, value);
-    this[headerMap].set(newname, newvalue);
-  }
-}
-
-// @internal
-// tslint:disable-next-line:variable-name
-export const Headers = DomIterableMixin<string, string, typeof HeadersBase>(
-  HeadersBase,
-  headerMap
-);
+import { Headers } from "./headers";
 
 class FetchResponse implements domTypes.Response {
   readonly url: string = "";