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// Copyright (c) 2019, 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.
// Tests that errors are given for internal name conflicts in extension methods.
// It is an error to have duplicate type parameter names.
extension E1<T, T> on int {
// ^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] A type variable can't have the same name as another.
}
extension E2 on int {}
// It is an error to have duplicate extension names.
extension E2 on int {}
// ^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'E2' is already declared in this scope.
class E2 {}
// ^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'E2' is already declared in this scope.
typedef E2 = int Function(int);
// ^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'E2' is already declared in this scope.
void E2(int x) {}
// ^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'E2' is already declared in this scope.
int E2 = 3;
// ^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'E2' is already declared in this scope.
////////////////////////////////////////////////////////////////////
// It is an error to have two static members with the same base name
// unless one is a setter and one is a getter.
//
// The next set of tests check various combinations of member name
// conflicts: first testing that members of the same kind (e.g.
// method/method) induce conflicts for the various combinations of
// static/instance; and then testing that members of different kind (e.g.
// method/getter) induce conflicts for the various combinations of
// static/instance.
////////////////////////////////////////////////////////////////////
// Check static members colliding with static members (of the same kind)
extension E3 on int {
static int method() => 0;
static int get property => 1;
static void set property(int value) {}
static int field = 3;
static int field2 = 4;
// ^
// [cfe] Conflicts with setter 'field2'.
static int method() => 0;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'method' is already declared in this scope.
static int get property => 1;
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'property' is already declared in this scope.
static void set property(int value) {}
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'property' is already declared in this scope.
static int field = 3;
// ^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'field' is already declared in this scope.
static int get field2 => 1;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'field2' is already declared in this scope.
static void set field2(int value) {}
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] Conflicts with the implicit setter of the field 'field2'.
}
// Check instance members colliding with instance members (of the same kind).
extension E4 on int {
int method() => 0;
int get property => 1;
void set property(int value) {}
int method() => 0;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'method' is already declared in this scope.
int get property => 1;
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'property' is already declared in this scope.
void set property(int value) {}
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'property' is already declared in this scope.
}
// Check static members colliding with static members (of the same kind).
extension E5 on int {
static int method() => 0;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
static int get property => 1;
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with setter 'property'.
static void set property(int value) {}
// ^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with member 'property'.
static int get property2 => 1;
// ^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with setter 'property2'.
static void set property3(int x) {}
// ^^^^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with member 'property3'.
static int field = 3;
// ^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with setter 'field'.
static int field2 = 3;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
int method() => 0;
// ^
// [cfe] 'method' is already declared in this scope.
int get property => 1;
// ^
// [cfe] 'property' is already declared in this scope.
// ^
// [cfe] Conflicts with setter 'property'.
void set property(int value) {}
// ^
// [cfe] 'property' is already declared in this scope.
// ^
// [cfe] Conflicts with member 'property'.
void set property2(int value) {}
// ^
// [cfe] Conflicts with member 'property2'.
int get property3 => 1;
// ^
// [cfe] Conflicts with setter 'property3'.
void set field(int value) {}
// ^
// [cfe] Conflicts with the implicit setter of the field 'field'.
int get field2 => 1;
// ^
// [cfe] 'field2' is already declared in this scope.
}
// Check a static method colliding with a static getter.
extension E6 on int {
static int method() => 0;
static int get method => 1;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'method' is already declared in this scope.
}
// Check a static method colliding with a static setter.
extension E7 on int {
static int method() => 0;
// ^
// [cfe] Conflicts with setter 'method'.
static void set method(int value) {}
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] Conflicts with member 'method'.
}
// Check a static method colliding with a static field.
extension E8 on int {
static int method() => 0;
static int method = 3;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'method' is already declared in this scope.
}
// Check an instance method colliding with an instance getter.
extension E9 on int {
int method() => 0;
int get method => 1;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] 'method' is already declared in this scope.
}
// Check an instance method colliding with an instance setter.
extension E10 on int {
int method() => 0;
// ^
// [cfe] Conflicts with setter 'method'.
void set method(int value) {}
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
// [cfe] Conflicts with member 'method'.
}
// Check a static method colliding with an instance getter.
extension E11 on int {
static int method() => 0;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
int get method => 1;
// ^
// [cfe] 'method' is already declared in this scope.
}
// Check a static method colliding with an instance setter.
extension E12 on int {
static int method() => 0;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with setter 'method'.
void set method(int value) {}
// ^
// [cfe] Conflicts with member 'method'.
}
// Check an instance method colliding with a static getter.
extension E13 on int {
int method() => 0;
static int get method => 1;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] 'method' is already declared in this scope.
}
// Check an instance method colliding with a static setter.
extension E14 on int {
int method() => 0;
// ^
// [cfe] Conflicts with setter 'method'.
static void set method(int value) {}
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] Conflicts with member 'method'.
}
// Check an instance method colliding with a static field.
extension E15 on int {
int method() => 0;
static int method = 3;
// ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
// [cfe] 'method' is already declared in this scope.
}
void main() {}