showDiagnostics()

in src/executable-code/executable-fragment.js [569:631]

• 58 lines of code
• 8 McCabe index (conditional complexity)

  showDiagnostics(diagnostics) {
    this.removeStyles();
    if (diagnostics === undefined) {
      return;
    }
    diagnostics.forEach((diagnostic) => {
      const interval = diagnostic.interval;
      if (interval == undefined) {
        return;
      }
      interval.start = this.recalculatePosition(interval.start);
      interval.end = this.recalculatePosition(interval.end);

      const errorMessage = unEscapeString(diagnostic.message);
      const severity = diagnostic.severity;
      const containsSuggestions =
        !!diagnostic.imports && diagnostic.imports.length !== 0;

      this.arrayClasses.push(
        this.codemirror.markText(interval.start, interval.end, {
          className: 'cm__' + diagnostic.className,
          title: errorMessage,
        }),
      );

      // contains suggestions => red underline
      if (containsSuggestions) {
        this.importsSuggestions.push({
          interval: interval,
          imports: diagnostic.imports,
        });
        this.arrayClasses.push(
          this.codemirror.markText(interval.start, interval.end, {
            className: 'cm__IMPORT',
          }),
        );
      }

      if (
        this.codemirror.lineInfo(interval.start.line) != null &&
        this.codemirror.lineInfo(interval.start.line).gutterMarkers == null
      ) {
        const gutter = document.createElement('div');
        gutter.className = severity + SELECTORS.GUTTER;
        gutter.setAttribute(SELECTORS.LABEL, errorMessage);
        this.codemirror.setGutterMarker(
          interval.start.line,
          SELECTORS.ERROR_AND_WARNING_GUTTER,
          gutter,
        );
      } else {
        const gutter = this.codemirror.lineInfo(interval.start.line)
          .gutterMarkers[SELECTORS.ERROR_AND_WARNING_GUTTER];
        gutter.setAttribute(
          SELECTORS.LABEL,
          gutter.getAttribute(SELECTORS.LABEL) + `\n${errorMessage}`,
        );
        if (gutter.className.indexOf(SELECTORS.ERROR_GUTTER) === -1) {
          gutter.className = severity + SELECTORS.GUTTER;
        }
      }
    });
  }