Method execute

packages/compiler/src/typecheck/ops/references.ts:71–100

()

  override readonly optional = true;

  override execute(): TcbExpr {
    const id = new TcbExpr(this.tcb.allocateId());
    let initializer: TcbExpr =
      this.target instanceof Template || this.target instanceof Element
        ? this.scope.resolve(this.target)
        : this.scope.resolve(this.host, this.target);

    // The reference is either to an element, an <ng-template> node, or to a directive on an
    // element or template.
    if (
      (this.target instanceof Element && !this.tcb.env.config.checkTypeOfDomReferences) ||
      !this.tcb.env.config.checkTypeOfNonDomReferences
    ) {
      // References to DOM nodes are pinned to 'any' when `checkTypeOfDomReferences` is `false`.
      // References to `TemplateRef`s and directives are pinned to 'any' when
      // `checkTypeOfNonDomReferences` is `false`.
      initializer = new TcbExpr(`${initializer.print()} as any`);
    } else if (this.target instanceof Template) {
      // Direct references to an <ng-template> node simply require a value of type
      // `TemplateRef<any>`. To get this, an expression of the form
      // `(_t1 as any as TemplateRef<any>)` is constructed.
      const templateRef = this.tcb.env.referenceExternalSymbol('@angular/core', 'TemplateRef');
      initializer = new TcbExpr(`(${initializer.print()} as any as ${templateRef.print()}<any>)`);
    }
    initializer.addParseSpanInfo(this.node.sourceSpan);
    id.addParseSpanInfo(this.node.keySpan);

    this.scope.addStatement(new TcbExpr(`var ${id.print()} = ${initializer.print()}`));
    return id;
  }
}

/**