carbon-lang/toolchain/check/testdata/class/fail_init.carbon

// 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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/fail_init.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_init.carbon

class Class {
  var a: i32;
  var b: i32;
}

fn F() {
  // CHECK:STDERR: fail_init.carbon:[[@LINE+4]]:3: ERROR: Cannot initialize class with 2 field(s) from struct with 1 field(s).
  // CHECK:STDERR:   {.a = 1} as Class;
  // CHECK:STDERR:   ^~~~~~~~
  // CHECK:STDERR:
  {.a = 1} as Class;
  // CHECK:STDERR: fail_init.carbon:[[@LINE+4]]:3: ERROR: Missing value for field `b` in struct initialization.
  // CHECK:STDERR:   {.a = 1, .c = 2} as Class;
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~
  // CHECK:STDERR:
  {.a = 1, .c = 2} as Class;
  // CHECK:STDERR: fail_init.carbon:[[@LINE+3]]:3: ERROR: Cannot initialize class with 2 field(s) from struct with 3 field(s).
  // CHECK:STDERR:   {.a = 1, .b = 2, .c = 3} as Class;
  // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~
  {.a = 1, .b = 2, .c = 3} as Class;
}

// CHECK:STDOUT: --- fail_init.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Class: type = class_type @Class [template]
// CHECK:STDOUT:   %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT:   %.1: type = tuple_type () [template]
// CHECK:STDOUT:   %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT:   %.2: type = unbound_element_type %Class, i32 [template]
// CHECK:STDOUT:   %.3: type = struct_type {.a: i32, .b: i32} [template]
// CHECK:STDOUT:   %F.type: type = fn_type @F [template]
// CHECK:STDOUT:   %F: %F.type = struct_value () [template]
// CHECK:STDOUT:   %.4: i32 = int_literal 1 [template]
// CHECK:STDOUT:   %.5: type = struct_type {.a: i32} [template]
// CHECK:STDOUT:   %.6: type = ptr_type %.3 [template]
// CHECK:STDOUT:   %.7: i32 = int_literal 2 [template]
// CHECK:STDOUT:   %.8: type = struct_type {.a: i32, .c: i32} [template]
// CHECK:STDOUT:   %.9: i32 = int_literal 3 [template]
// CHECK:STDOUT:   %.10: type = struct_type {.a: i32, .b: i32, .c: i32} [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT:     .Int32 = %import_ref
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/operators
// CHECK:STDOUT:     import Core//prelude/types
// CHECK:STDOUT:     import Core//prelude/operators/arithmetic
// CHECK:STDOUT:     import Core//prelude/operators/bitwise
// CHECK:STDOUT:     import Core//prelude/operators/comparison
// CHECK:STDOUT:     import Core//prelude/types/bool
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %import_ref: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .Class = %Class.decl
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Class.decl: type = class_decl @Class [template = constants.%Class] {}
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class {
// CHECK:STDOUT:   %int.make_type_32.loc12: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT:   %.loc12_10.1: type = value_of_initializer %int.make_type_32.loc12 [template = i32]
// CHECK:STDOUT:   %.loc12_10.2: type = converted %int.make_type_32.loc12, %.loc12_10.1 [template = i32]
// CHECK:STDOUT:   %.loc12_8: %.2 = field_decl a, element0 [template]
// CHECK:STDOUT:   %int.make_type_32.loc13: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT:   %.loc13_10.1: type = value_of_initializer %int.make_type_32.loc13 [template = i32]
// CHECK:STDOUT:   %.loc13_10.2: type = converted %int.make_type_32.loc13, %.loc13_10.1 [template = i32]
// CHECK:STDOUT:   %.loc13_8: %.2 = field_decl b, element1 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = constants.%Class
// CHECK:STDOUT:   .a = %.loc12_8
// CHECK:STDOUT:   .b = %.loc13_8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %.loc21_9: i32 = int_literal 1 [template = constants.%.4]
// CHECK:STDOUT:   %.loc21_10.1: %.5 = struct_literal (%.loc21_9)
// CHECK:STDOUT:   %Class.ref.loc21: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT:   %.loc21_10.2: ref %Class = temporary_storage
// CHECK:STDOUT:   %.loc21_10.3: ref %Class = temporary %.loc21_10.2, <error>
// CHECK:STDOUT:   %.loc21_12: ref %Class = converted %.loc21_10.1, %.loc21_10.3
// CHECK:STDOUT:   %.loc26_9: i32 = int_literal 1 [template = constants.%.4]
// CHECK:STDOUT:   %.loc26_17: i32 = int_literal 2 [template = constants.%.7]
// CHECK:STDOUT:   %.loc26_18.1: %.8 = struct_literal (%.loc26_9, %.loc26_17)
// CHECK:STDOUT:   %Class.ref.loc26: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT:   %.loc26_18.2: ref %Class = temporary_storage
// CHECK:STDOUT:   %.loc26_18.3: ref i32 = class_element_access %.loc26_18.2, element0
// CHECK:STDOUT:   %.loc26_18.4: init i32 = initialize_from %.loc26_9 to %.loc26_18.3 [template = constants.%.4]
// CHECK:STDOUT:   %.loc26_18.5: ref %Class = temporary %.loc26_18.2, <error>
// CHECK:STDOUT:   %.loc26_20: ref %Class = converted %.loc26_18.1, %.loc26_18.5
// CHECK:STDOUT:   %.loc30_9: i32 = int_literal 1 [template = constants.%.4]
// CHECK:STDOUT:   %.loc30_17: i32 = int_literal 2 [template = constants.%.7]
// CHECK:STDOUT:   %.loc30_25: i32 = int_literal 3 [template = constants.%.9]
// CHECK:STDOUT:   %.loc30_26.1: %.10 = struct_literal (%.loc30_9, %.loc30_17, %.loc30_25)
// CHECK:STDOUT:   %Class.ref.loc30: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT:   %.loc30_26.2: ref %Class = temporary_storage
// CHECK:STDOUT:   %.loc30_26.3: ref %Class = temporary %.loc30_26.2, <error>
// CHECK:STDOUT:   %.loc30_28: ref %Class = converted %.loc30_26.1, %.loc30_26.3
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT: