Method _consumeDirective

packages/compiler/src/ml_parser/parser.ts:706–751

(nameToken: DirectiveNameToken)

  }

  private _consumeDirective(nameToken: DirectiveNameToken): html.Directive {
    const attributes: html.Attribute[] = [];
    let startSourceSpanEnd: ParseLocation = nameToken.sourceSpan.end;
    let endSourceSpan: ParseSourceSpan | null = null;
    this._advance();

    if (this._peek.type === TokenType.DIRECTIVE_OPEN) {
      // Capture the opening token in the start span.
      startSourceSpanEnd = this._peek.sourceSpan.end;
      this._advance();

      // Cast here is necessary, because TS doesn't know that `_advance` changed `_peek`.
      while ((this._peek as Token).type === TokenType.ATTR_NAME) {
        attributes.push(this._consumeAttr(this._advance<AttributeNameToken>()));
      }

      if ((this._peek as Token).type === TokenType.DIRECTIVE_CLOSE) {
        endSourceSpan = this._peek.sourceSpan;
        this._advance();
      } else {
        this.errors.push(
          TreeError.create(null, nameToken.sourceSpan, 'Unterminated directive definition'),
        );
      }
    }

    const startSourceSpan = new ParseSourceSpan(
      nameToken.sourceSpan.start,
      startSourceSpanEnd,
      nameToken.sourceSpan.fullStart,
    );

    const sourceSpan = new ParseSourceSpan(
      startSourceSpan.start,
      endSourceSpan === null ? nameToken.sourceSpan.end : endSourceSpan.end,
      startSourceSpan.fullStart,
    );

    return new html.Directive(
      nameToken.parts[0],
      attributes,
      sourceSpan,
      startSourceSpan,
      endSourceSpan,
    );
  }

  private _consumeBlockOpen(token: BlockOpenStartToken) {
    const parameters: html.BlockParameter[] = [];