// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon

package User;

class C {};

impl C as Core.Inc {
  fn Op[ref self: C]();
}
impl C as Core.AddAssignWith(C) {
  fn Op[ref self: C](other: C);
}

fn TestIncNonRef(a: C) {
  // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE+7]]:5: error: value expression passed to reference parameter [ValueForRefParam]
  // CHECK:STDERR:   ++a;
  // CHECK:STDERR:     ^
  // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE-10]]:9: note: initializing function parameter [InCallToFunctionParam]
  // CHECK:STDERR:   fn Op[ref self: C]();
  // CHECK:STDERR:         ^~~~~~~~~~~
  // CHECK:STDERR:
  ++a;
}

fn TestAddAssignNonRef(a: C, b: C) {
  // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE+7]]:3: error: value expression passed to reference parameter [ValueForRefParam]
  // CHECK:STDERR:   a += b;
  // CHECK:STDERR:   ^
  // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE-18]]:9: note: initializing function parameter [InCallToFunctionParam]
  // CHECK:STDERR:   fn Op[ref self: C](other: C);
  // CHECK:STDERR:         ^~~~~~~~~~~
  // CHECK:STDERR:
  a += b;
}

// CHECK:STDOUT: --- fail_assign_non_ref.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %C: type = class_type @C [concrete]
// CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT:   %Inc.type: type = facet_type <@Inc> [concrete]
// CHECK:STDOUT:   %Inc.impl_witness: <witness> = impl_witness @C.as.Inc.impl.%Inc.impl_witness_table [concrete]
// CHECK:STDOUT:   %pattern_type.476: type = pattern_type %C [concrete]
// CHECK:STDOUT:   %C.as.Inc.impl.Op.type: type = fn_type @C.as.Inc.impl.Op [concrete]
// CHECK:STDOUT:   %C.as.Inc.impl.Op: %C.as.Inc.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %C, (%Inc.impl_witness) [concrete]
// CHECK:STDOUT:   %Inc.WithSelf.Op.type.700: type = fn_type @Inc.WithSelf.Op, @Inc.WithSelf(%Inc.facet) [concrete]
// CHECK:STDOUT:   %AddAssignWith.type.fc6: type = generic_interface_type @AddAssignWith [concrete]
// CHECK:STDOUT:   %AddAssignWith.generic: %AddAssignWith.type.fc6 = struct_value () [concrete]
// CHECK:STDOUT:   %AddAssignWith.type.16b: type = facet_type <@AddAssignWith, @AddAssignWith(%C)> [concrete]
// CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness @C.as.AddAssignWith.impl.%AddAssignWith.impl_witness_table [concrete]
// CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.type: type = fn_type @C.as.AddAssignWith.impl.Op [concrete]
// CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op: %C.as.AddAssignWith.impl.Op.type = struct_value () [concrete]
// CHECK:STDOUT:   %AddAssignWith.facet: %AddAssignWith.type.16b = facet_value %C, (%AddAssignWith.impl_witness) [concrete]
// CHECK:STDOUT:   %AddAssignWith.WithSelf.Op.type.2b1: type = fn_type @AddAssignWith.WithSelf.Op, @AddAssignWith.WithSelf(%C, %AddAssignWith.facet) [concrete]
// CHECK:STDOUT:   %TestIncNonRef.type: type = fn_type @TestIncNonRef [concrete]
// CHECK:STDOUT:   %TestIncNonRef: %TestIncNonRef.type = struct_value () [concrete]
// CHECK:STDOUT:   %.38a: type = fn_type_with_self_type %Inc.WithSelf.Op.type.700, %Inc.facet [concrete]
// CHECK:STDOUT:   %TestAddAssignNonRef.type: type = fn_type @TestAddAssignNonRef [concrete]
// CHECK:STDOUT:   %TestAddAssignNonRef: %TestAddAssignNonRef.type = struct_value () [concrete]
// CHECK:STDOUT:   %.168: type = fn_type_with_self_type %AddAssignWith.WithSelf.Op.type.2b1, %AddAssignWith.facet [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Inc = %Core.Inc
// CHECK:STDOUT:     .AddAssignWith = %Core.AddAssignWith
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Inc: type = import_ref Core//prelude/operators/arithmetic, Inc, loaded [concrete = constants.%Inc.type]
// CHECK:STDOUT:   %Core.AddAssignWith: %AddAssignWith.type.fc6 = import_ref Core//prelude/operators/arithmetic, AddAssignWith, loaded [concrete = constants.%AddAssignWith.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .C = %C.decl
// CHECK:STDOUT:     .TestIncNonRef = %TestIncNonRef.decl
// CHECK:STDOUT:     .TestAddAssignNonRef = %TestAddAssignNonRef.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT:   impl_decl @C.as.Inc.impl [concrete] {} {
// CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
// CHECK:STDOUT:     %Inc.ref: type = name_ref Inc, imports.%Core.Inc [concrete = constants.%Inc.type]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   impl_decl @C.as.AddAssignWith.impl [concrete] {} {
// CHECK:STDOUT:     %C.ref.loc22_6: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
// CHECK:STDOUT:     %AddAssignWith.ref: %AddAssignWith.type.fc6 = name_ref AddAssignWith, imports.%Core.AddAssignWith [concrete = constants.%AddAssignWith.generic]
// CHECK:STDOUT:     %C.ref.loc22_30: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %AddAssignWith.type: type = facet_type <@AddAssignWith, @AddAssignWith(constants.%C)> [concrete = constants.%AddAssignWith.type.16b]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %TestIncNonRef.decl: %TestIncNonRef.type = fn_decl @TestIncNonRef [concrete = constants.%TestIncNonRef] {
// CHECK:STDOUT:     %a.patt: %pattern_type.476 = value_binding_pattern a [concrete]
// CHECK:STDOUT:     %a.param_patt: %pattern_type.476 = value_param_pattern %a.patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %a.param: %C = value_param call_param0
// CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %a: %C = value_binding a, %a.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %TestAddAssignNonRef.decl: %TestAddAssignNonRef.type = fn_decl @TestAddAssignNonRef [concrete = constants.%TestAddAssignNonRef] {
// CHECK:STDOUT:     %a.patt: %pattern_type.476 = value_binding_pattern a [concrete]
// CHECK:STDOUT:     %a.param_patt: %pattern_type.476 = value_param_pattern %a.patt [concrete]
// CHECK:STDOUT:     %b.patt: %pattern_type.476 = value_binding_pattern b [concrete]
// CHECK:STDOUT:     %b.param_patt: %pattern_type.476 = value_param_pattern %b.patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %a.param: %C = value_param call_param0
// CHECK:STDOUT:     %C.ref.loc37_27: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %a: %C = value_binding a, %a.param
// CHECK:STDOUT:     %b.param: %C = value_param call_param1
// CHECK:STDOUT:     %C.ref.loc37_33: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %b: %C = value_binding b, %b.param
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.Inc.impl: %C.ref as %Inc.ref {
// CHECK:STDOUT:   %C.as.Inc.impl.Op.decl: %C.as.Inc.impl.Op.type = fn_decl @C.as.Inc.impl.Op [concrete = constants.%C.as.Inc.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.476 = ref_binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.476 = ref_param_pattern %self.patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: ref %C = ref_param call_param0
// CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %self: ref %C = ref_binding self, %self.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Inc.impl_witness_table = impl_witness_table (%C.as.Inc.impl.Op.decl), @C.as.Inc.impl [concrete]
// CHECK:STDOUT:   %Inc.impl_witness: <witness> = impl_witness %Inc.impl_witness_table [concrete = constants.%Inc.impl_witness]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .C = <poisoned>
// CHECK:STDOUT:   .Op = %C.as.Inc.impl.Op.decl
// CHECK:STDOUT:   witness = %Inc.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.AddAssignWith.impl: %C.ref.loc22_6 as %AddAssignWith.type {
// CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.decl: %C.as.AddAssignWith.impl.Op.type = fn_decl @C.as.AddAssignWith.impl.Op [concrete = constants.%C.as.AddAssignWith.impl.Op] {
// CHECK:STDOUT:     %self.patt: %pattern_type.476 = ref_binding_pattern self [concrete]
// CHECK:STDOUT:     %self.param_patt: %pattern_type.476 = ref_param_pattern %self.patt [concrete]
// CHECK:STDOUT:     %other.patt: %pattern_type.476 = value_binding_pattern other [concrete]
// CHECK:STDOUT:     %other.param_patt: %pattern_type.476 = value_param_pattern %other.patt [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %self.param: ref %C = ref_param call_param0
// CHECK:STDOUT:     %C.ref.loc23_19: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %self: ref %C = ref_binding self, %self.param
// CHECK:STDOUT:     %other.param: %C = value_param call_param1
// CHECK:STDOUT:     %C.ref.loc23_29: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT:     %other: %C = value_binding other, %other.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %AddAssignWith.impl_witness_table = impl_witness_table (%C.as.AddAssignWith.impl.Op.decl), @C.as.AddAssignWith.impl [concrete]
// CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness %AddAssignWith.impl_witness_table [concrete = constants.%AddAssignWith.impl_witness]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .C = <poisoned>
// CHECK:STDOUT:   .Op = %C.as.AddAssignWith.impl.Op.decl
// CHECK:STDOUT:   witness = %AddAssignWith.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT:   complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%C
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.Inc.impl.Op(%self.param: ref %C);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.AddAssignWith.impl.Op(%self.param: ref %C, %other.param: %C);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @TestIncNonRef(%a.param: %C) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
// CHECK:STDOUT:   %impl.elem0: %.38a = impl_witness_access constants.%Inc.impl_witness, element0 [concrete = constants.%C.as.Inc.impl.Op]
// CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
// CHECK:STDOUT:   %C.as.Inc.impl.Op.call: init %empty_tuple.type = call %bound_method(<error>)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @TestAddAssignNonRef(%a.param: %C, %b.param: %C) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
// CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
// CHECK:STDOUT:   %impl.elem0: %.168 = impl_witness_access constants.%AddAssignWith.impl_witness, element0 [concrete = constants.%C.as.AddAssignWith.impl.Op]
// CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
// CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(<error>, %b.ref)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
