tests/lib/mirrors/method_mirror_source_test.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// Note: This test relies on LF line endings in the source file.

import "dart:mirrors";
import "package:expect/expect.dart";
import "method_mirror_source_other.dart";

expectSource(Mirror mirror, String source) {
  MethodMirror methodMirror;
  if (mirror is ClosureMirror) {
    methodMirror = mirror.function;
  } else {
    methodMirror = mirror as MethodMirror;
  }
  Expect.isTrue(methodMirror is MethodMirror);
  Expect.equals(source, methodMirror.source);
}

foo1() {}
doSomething(e) => e;

int get x => 42;
set x(value) {}

class S {}

class C extends S {
  var _x;
  var _y;

  C(this._x, y) : _y = y, super();

  factory C.other(num z) => C(z, z);
  factory C.other2() => C(0, 0);
  factory C.other3() = C.other2;

  static dynamic foo() {
    // Happy foo.
  }

  // Some comment.

  void bar() {
    /* Not so happy bar. */
  }

  num get someX => 181;

  set someX(v) {
    // Discard this one.
  }
}

main() {
  // Top-level members
  LibraryMirror lib = reflectClass(C).owner as LibraryMirror;
  expectSource(lib.declarations[#foo1]!, "foo1() {}");
  expectSource(lib.declarations[#x]!, "int get x => 42;");
  expectSource(lib.declarations[const Symbol("x=")]!, "set x(value) {}");

  // Class members
  ClassMirror cm = reflectClass(C);
  expectSource(
    cm.declarations[#foo]!,
    "static dynamic foo() {\n"
    "    // Happy foo.\n"
    "  }",
  );
  expectSource(
    cm.declarations[#bar]!,
    "void bar() {\n"
    "    /* Not so happy bar. */\n"
    "  }",
  );
  expectSource(
    cm.declarations[#someX]!,
    "num get someX => 181;",
  );
  expectSource(
    cm.declarations[const Symbol("someX=")]!,
    "set someX(v) {\n"
    "    // Discard this one.\n"
    "  }",
  );
  expectSource(
    cm.declarations[#C]!,
    "C(this._x, y) : _y = y, super();",
  );
  expectSource(
    cm.declarations[#C.other]!,
    "factory C.other(num z) => C(z, z);",
  );
  expectSource(cm.declarations[#C.other3]!, "factory C.other3() = C.other2;");

  // Closures
  expectSource(reflect(() {}), "() {}");
  expectSource(
    reflect((x, y, z) {
      return x * y * z;
    }),
    "(x, y, z) {\n"
    "      return x * y * z;\n"
    "    }",
  );
  expectSource(reflect((e) => doSomething(e)), "(e) => doSomething(e)");

  namedClosure(x, y, z) => 1;
  var a = () {};
  expectSource(reflect(namedClosure), "namedClosure(x, y, z) => 1;");
  expectSource(reflect(a), "() {}");

  // Function at first line.
  LibraryMirror otherLib =
      reflectClass(SomethingInOther).owner as LibraryMirror;
  expectSource(otherLib.declarations[#main]!, """main() {
  print("Blah");
}""");
}