Method _askForLink

src/browser/Linkifier.ts:108–151

(position: IBufferCellPosition, useLineCache: boolean)

  }

  private _askForLink(position: IBufferCellPosition, useLineCache: boolean): void {
    if (!this._activeProviderReplies || !useLineCache) {
      this._activeProviderReplies?.forEach(reply => {
        reply?.forEach(linkWithState => {
          if (linkWithState.link.dispose) {
            linkWithState.link.dispose();
          }
        });
      });
      this._activeProviderReplies = new Map();
      this._activeLine = position.y;
    }
    let linkProvided = false;

    // There is no link cached, so ask for one
    for (const [i, linkProvider] of this._linkProviderService.linkProviders.entries()) {
      if (useLineCache) {
        const existingReply = this._activeProviderReplies?.get(i);
        // If there isn't a reply, the provider hasn't responded yet.

        // TODO: If there isn't a reply yet it means that the provider is still resolving. Ensuring
        // provideLinks isn't triggered again saves ILink.hover firing twice though. This probably
        // needs promises to get fixed
        if (existingReply) {
          linkProvided = this._checkLinkProviderResult(i, position, linkProvided);
        }
      } else {
        linkProvider.provideLinks(position.y, (links: ILink[] | undefined) => {
          if (this._isMouseOut) {
            return;
          }
          const linksWithState: ILinkWithState[] | undefined = links?.map(link  => ({ link }));
          this._activeProviderReplies?.set(i, linksWithState);
          linkProvided = this._checkLinkProviderResult(i, position, linkProvided);

          // If all providers have responded, remove lower priority links that intersect ranges of
          // higher priority links
          if (this._activeProviderReplies?.size === this._linkProviderService.linkProviders.length) {
            this._removeIntersectingLinks(position.y, this._activeProviderReplies);
          }
        });
      }
    }
  }

  private _removeIntersectingLinks(y: number, replies: Map<Number, ILinkWithState[] | undefined>): void {
    const occupiedCells = new Set<number>();