CODEWITHSUNDEEP
dartdart-mirrors
Mike Mitterer
Mike Mitterer

Reputation: 7180

How do I get a MethodMirror for the current function

Say I have 

class RestSimulator {

@Path("/var")
void functionOne() {
  final Type type = this.runtimeType;
  final InstanceMirror instanceMirror = reflect(this);
  final ClassMirror classMirror = instanceMirror.type; 

  final MethodMirror methodMirror = ?????
  var metadata = methodMirror.metadata;
  var path = metadata.first.reflectee;

  print(path.toString()):
  }
}

How can I get the MethodMirror for the calling function???

[Update] I meant without doing something like 

final MethodMirror methodMirror = functions[const Symbol('functionOne')];

So probably the main question is: How do I get the Symbol for the calling / current function?

Upvotes: 1

Views: 296

Answers (1)

Alexandre Ardhuin
Alexandre Ardhuin

Reputation: 76253

AFAIK there's no simple way to get a reference on the current function at runtime.

I say simple because you can get the name from a StackTrace but it's really ugly and has horrible performances...

class A {
  m() {
    var functionName;
    try {
      throw '';
    } catch(e, s) {
      functionName = parseStackTraceToGetMethod(s.toString());
    }
    print(functionName); // displays A.m
  }
}
parseStackTraceToGetMethod(String s) =>
  s.substring(8, s.indexOf("("));

main() {
  new A().m();
}

Upvotes: 1

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