pkg/_fe_analyzer_shared/test/flow_analysis/why_not_promoted/data/argument_type_not_assignable_nullability_error.dart

// Copyright (c) 2021, 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.

// This test contains a test case for each condition that can lead to the front
// end's `ArgumentTypeNotAssignableNullability` error, for which we wish to
// report "why not promoted" context information.

class C1 {
  int? bad;
  f(int i) {}
}

required_unnamed(C1 c) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C1.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C1.bad, type: int?))*/ bad);
}

class C2 {
  int? bad;
  f([int i = 0]) {}
}

optional_unnamed(C2 c) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C2.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C2.bad, type: int?))*/ bad);
}

class C3 {
  int? bad;
  f({required int i}) {}
}

required_named(C3 c) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C3.bad, type: int?))*/ i:
          c. /*cfe.notPromoted(propertyNotPromoted(target: member:C3.bad, type: int?))*/ bad);
}

class C4 {
  int? bad;
  f({int i = 0}) {}
}

optional_named(C4 c) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C4.bad, type: int?))*/ i:
          c. /*cfe.notPromoted(propertyNotPromoted(target: member:C4.bad, type: int?))*/ bad);
}

class C5 {
  List<int>? bad;
  f<T>(List<T> x) {}
}

type_inferred(C5 c) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C5.bad, type: List<int>?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C5.bad, type: List<int>?))*/ bad);
}

class C6 {
  int? bad;
  C6(int i);
}

C6? constructor_with_implicit_new(C6 c) {
  if (c.bad == null) return null;
  return C6(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C6.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C6.bad, type: int?))*/ bad);
}

class C7 {
  int? bad;
  C7(int i);
}

C7? constructor_with_explicit_new(C7 c) {
  if (c.bad == null) return null;
  return new C7(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C7.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C7.bad, type: int?))*/ bad);
}

class C8 {
  int? bad;
}

userDefinableBinaryOpRhs(C8 c) {
  if (c.bad == null) return;
  1 +
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C8.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C8.bad, type: int?))*/ bad;
}

class C9 {
  int? bad;
  f(int i) {}
}

questionQuestionRhs(C9 c, int? i) {
  // Note: "why not supported" functionality is currently not supported for the
  // RHS of `??` because it requires more clever reasoning than we currently do:
  // we would have to understand that the reason `i ?? c.bad` has a type of
  // `int?` rather than `int` is because `c.bad` was not promoted.  We currently
  // only support detecting non-promotion when the expression that had the wrong
  // type *is* the expression that wasn't promoted.
  if (c.bad == null) return;
  c.f(i ?? c.bad);
}

class C10 {
  D10? bad;
  f(bool b) {}
}

class D10 {
  bool operator ==(covariant D10 other) => true;
}

equalRhs(C10 c, D10 d) {
  if (c.bad == null) return;
  // Note: we don't report an error here because `==` always accepts `null`.
  c.f(d == c.bad);
  c.f(d != c.bad);
}

class C11 {
  bool? bad;
  f(bool b) {}
}

andOperand(C11 c, bool b) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C11.bad, type: bool?))*/ c
              . /*cfe.notPromoted(propertyNotPromoted(target: member:C11.bad, type: bool?))*/ bad &&
          b);
  c.f(b &&
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C11.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C11.bad, type: bool?))*/ bad);
}

class C12 {
  bool? bad;
  f(bool b) {}
}

orOperand(C12 c, bool b) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C12.bad, type: bool?))*/ c
              . /*cfe.notPromoted(propertyNotPromoted(target: member:C12.bad, type: bool?))*/ bad ||
          b);
  c.f(b ||
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C12.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C12.bad, type: bool?))*/ bad);
}

class C13 {
  bool? bad;
}

assertStatementCondition(C13 c) {
  if (c.bad == null) return;
  assert(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C13.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C13.bad, type: bool?))*/ bad);
}

class C14 {
  bool? bad;
  C14.assertInitializerCondition(C14 c)
      : bad = c.bad!,
        assert(
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C14.bad, type: bool?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C14.bad, type: bool?))*/ bad);
}

class C15 {
  bool? bad;
  f(bool b) {}
}

notOperand(C15 c) {
  if (c.bad == null) return;
  c.f(!
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C15.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C15.bad, type: bool?))*/ bad);
}

class C16 {
  bool? bad;
  f(bool b) {}
}

forLoopCondition(C16 c) {
  if (c.bad == null) return;
  for (;
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ bad;) {}
  [
    for (;
        /*analyzer.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ c
            . /*cfe.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ bad;)
      null
  ];
  ({
    for (;
        /*analyzer.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ c
            . /*cfe.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ bad;)
      null
  });
  ({
    for (;
        /*analyzer.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ c
            . /*cfe.notPromoted(propertyNotPromoted(target: member:C16.bad, type: bool?))*/ bad;)
      null: null
  });
}

class C17 {
  bool? bad;
  f(int i) {}
}

conditionalExpressionCondition(C17 c) {
  if (c.bad == null) return;
  c.f(
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C17.bad, type: bool?))*/ c
              . /*cfe.notPromoted(propertyNotPromoted(target: member:C17.bad, type: bool?))*/ bad
          ? 1
          : 2);
}

class C18 {
  bool? bad;
}

doLoopCondition(C18 c) {
  if (c.bad == null) return;
  do {} while (
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C18.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C18.bad, type: bool?))*/ bad);
}

class C19 {
  bool? bad;
}

ifCondition(C19 c) {
  if (c.bad == null) return;
  if (
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ bad) {}
  [
    if (
    /*analyzer.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ c
        . /*cfe.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ bad)
      null
  ];
  ({
    if (
    /*analyzer.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ c
        . /*cfe.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ bad)
      null
  });
  ({
    if (
    /*analyzer.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ c
        . /*cfe.notPromoted(propertyNotPromoted(target: member:C19.bad, type: bool?))*/ bad)
      null: null
  });
}

class C20 {
  bool? bad;
}

whileCondition(C20 c) {
  if (c.bad == null) return;
  while (/*analyzer.notPromoted(propertyNotPromoted(target: member:C20.bad, type: bool?))*/ c
      . /*cfe.notPromoted(propertyNotPromoted(target: member:C20.bad, type: bool?))*/ bad) {}
}

class C21 {
  int? bad;
}

assignmentRhs(C21 c, int i) {
  if (c.bad == null) return;
  i =
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C21.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C21.bad, type: int?))*/ bad;
}

class C22 {
  int? bad;
}

variableInitializer(C22 c) {
  if (c.bad == null) return;
  int i =
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C22.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C22.bad, type: int?))*/ bad;
}

class C23 {
  int? bad;
  final int x;
  final int y;
  C23.constructorInitializer(C23 c)
      : x = c.bad!,
        y =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C23.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C23.bad, type: int?))*/ bad;
}

class C24 {
  int? bad;
}

forVariableInitializer(C24 c) {
  if (c.bad == null) return;
  for (int i =
          /*analyzer.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ c
              . /*cfe.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ bad;
      false;) {}
  [
    for (int i =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ bad;
        false;)
      null
  ];
  ({
    for (int i =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ bad;
        false;)
      null
  });
  ({
    for (int i =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C24.bad, type: int?))*/ bad;
        false;)
      null: null
  });
}

class C25 {
  int? bad;
}

forAssignmentInitializer(C25 c, int i) {
  if (c.bad == null) return;
  for (i =
          /*analyzer.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ c
              . /*cfe.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ bad;
      false;) {}
  [
    for (i =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ bad;
        false;)
      null
  ];
  ({
    for (i =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ bad;
        false;)
      null
  });
  ({
    for (i =
            /*analyzer.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ c
                . /*cfe.notPromoted(propertyNotPromoted(target: member:C25.bad, type: int?))*/ bad;
        false;)
      null: null
  });
}

class C26 {
  int? bad;
}

compoundAssignmentRhs(C26 c) {
  num n = 0;
  if (c.bad == null) return;
  n +=
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C26.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C26.bad, type: int?))*/ bad;
}

class C27 {
  int? bad;
}

indexGet(C27 c, List<int> values) {
  if (c.bad == null) return;
  values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C27.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C27.bad, type: int?))*/ bad];
}

class C28 {
  int? bad;
}

indexSet(C28 c, List<int> values) {
  if (c.bad == null) return;
  values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C28.bad, type: int?))*/ c
          . /*cfe.notPromoted(propertyNotPromoted(target: member:C28.bad, type: int?))*/ bad] = 0;
}

class C29 {
  int? bad;
}

indexSetCompound(C29 c, List<int> values) {
  // TODO(paulberry): get this to work with the CFE
  if (c.bad == null) return;
  values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C29.bad, type: int?))*/ c
          .bad] += 1;
}

class C30 {
  int? bad;
}

indexSetIfNull(C30 c, List<int?> values) {
  // TODO(paulberry): get this to work with the CFE
  if (c.bad == null) return;
  values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C30.bad, type: int?))*/ c
          .bad] ??= 1;
}

class C31 {
  int? bad;
}

indexSetPreIncDec(C31 c, List<int> values) {
  // TODO(paulberry): get this to work with the CFE
  if (c.bad == null) return;
  ++values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C31.bad, type: int?))*/ c
          .bad];
  --values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C31.bad, type: int?))*/ c
          .bad];
}

class C32 {
  int? bad;
}

indexSetPostIncDec(C32 c, List<int> values) {
  // TODO(paulberry): get this to work with the CFE
  if (c.bad == null) return;
  values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C32.bad, type: int?))*/ c
          .bad]++;
  values[
      /*analyzer.notPromoted(propertyNotPromoted(target: member:C32.bad, type: int?))*/ c
          .bad]--;
}