Method evaluateStatements

packages/compiler/src/output/output_jit.ts:33–48

* * @param sourceUrl The URL of the generated code. * @param statements An array of Angular statement AST nodes to be evaluated. * @param refResolver Resolves `o.ExternalReference`s into values. * @param createSourceMaps If true then create a source-map for the generated code and include

(
    sourceUrl: string,
    statements: o.Statement[],
    refResolver: ExternalReferenceResolver,
    createSourceMaps: boolean,
  )

   * @returns A map of all the variables in the generated code.
   */
  evaluateStatements(
    sourceUrl: string,
    statements: o.Statement[],
    refResolver: ExternalReferenceResolver,
    createSourceMaps: boolean,
  ): {[key: string]: any} {
    const converter = new JitEmitterVisitor(refResolver);
    const ctx = EmitterVisitorContext.createRoot();
    // Ensure generated code is in strict mode
    if (statements.length > 0 && !isUseStrictStatement(statements[0])) {
      statements = [o.literal('use strict').toStmt(), ...statements];
    }
    converter.visitAllStatements(statements, ctx);
    converter.createReturnStmt(ctx);
    return this.evaluateCode(sourceUrl, ctx, converter.getArgs(), createSourceMaps);
  }

  /**
   * Evaluate a piece of JIT generated code.