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carbon-lang/toolchain/check/testdata/struct/tuple_as_element.carbon
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josh11bJosh LRichard Smith
 67f2c9ce26 Add a FacetValue instruction (#4545) 
The new `FacetValue` instruction represents `C as I` for some type `C`
and facet type `I`. It is named `FacetValue` instead of just `Facet` to
parallel the `FacetType` instruction.

This PR uses this instruction represent the facet value `Self` in an
`impl` declaration. This instruction will be used in the future to also
support things like:

* `C as I` where `C` is a class; and
* forming a specific for a generic with a `T:! I` parameter where `T` is
being given a concrete value.

(Here `I` is an interface or other non-`type` facet type.)

Also do some renaming and add some comments to make things a bit more
clear.

* `FacetTypeAccess` -> `FacetAccessType` to clarify this is not access
of a facet type, but access of the type of a facet
* `.facet_id` -> `.facet_value_inst_id` to parallel the `FacetValue`
instruction

`FacetAccessWitness` will be in a future PR.

---------

Co-authored-by: Josh L <josh11b@users.noreply.github.com>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-11-21 22:29:53 +00:00

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// 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/struct/tuple_as_element.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/struct/tuple_as_element.carbon
var x: {.a: i32, .b: (i32,)} = {.a = 1, .b = (2,)};
var y: {.a: i32, .b: (i32,)} = x;
// CHECK:STDOUT: --- tuple_as_element.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.1: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT: %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT: %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT: %i32: type = int_type signed, %.1 [template]
// CHECK:STDOUT: %tuple.type.1: type = tuple_type (type) [template]
// CHECK:STDOUT: %tuple.type.2: type = tuple_type (%i32) [template]
// CHECK:STDOUT: %.2: type = struct_type {.a: %i32, .b: %tuple.type.2} [template]
// CHECK:STDOUT: %.4: Core.IntLiteral = int_value 1 [template]
// CHECK:STDOUT: %.5: Core.IntLiteral = int_value 2 [template]
// CHECK:STDOUT: %tuple.type.3: type = tuple_type (Core.IntLiteral) [template]
// CHECK:STDOUT: %.6: type = struct_type {.a: Core.IntLiteral, .b: %tuple.type.3} [template]
// CHECK:STDOUT: %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
// CHECK:STDOUT: %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.1) [template]
// CHECK:STDOUT: %Convert.14: %Convert.type.14 = struct_value () [template]
// CHECK:STDOUT: %.30: <witness> = interface_witness (%Convert.14) [template]
// CHECK:STDOUT: %.31: <bound method> = bound_method %.4, %Convert.14 [template]
// CHECK:STDOUT: %.32: <specific function> = specific_function %.31, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.33: %i32 = int_value 1 [template]
// CHECK:STDOUT: %.34: <bound method> = bound_method %.5, %Convert.14 [template]
// CHECK:STDOUT: %.35: <specific function> = specific_function %.34, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.36: %i32 = int_value 2 [template]
// CHECK:STDOUT: %tuple: %tuple.type.2 = tuple_value (%.36) [template]
// CHECK:STDOUT: %struct: %.2 = struct_value (%.33, %tuple) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int = %import_ref.1
// CHECK:STDOUT: .ImplicitAs = %import_ref.2
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .x = %x
// CHECK:STDOUT: .y = %y
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %.loc11_13.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc11_13: init type = call constants.%Int(%.loc11_13.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc11_13.2: type = value_of_initializer %int.make_type_signed.loc11_13 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_13.3: type = converted %int.make_type_signed.loc11_13, %.loc11_13.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_23: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc11_23: init type = call constants.%Int(%.loc11_23) [template = constants.%i32]
// CHECK:STDOUT: %.loc11_27.1: %tuple.type.1 = tuple_literal (%int.make_type_signed.loc11_23)
// CHECK:STDOUT: %.loc11_27.2: type = value_of_initializer %int.make_type_signed.loc11_23 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_27.3: type = converted %int.make_type_signed.loc11_23, %.loc11_27.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_27.4: type = converted %.loc11_27.1, constants.%tuple.type.2 [template = constants.%tuple.type.2]
// CHECK:STDOUT: %.loc11_28: type = struct_type {.a: %i32, .b: %tuple.type.2} [template = constants.%.2]
// CHECK:STDOUT: %x.var: ref %.2 = var x
// CHECK:STDOUT: %x: ref %.2 = bind_name x, %x.var
// CHECK:STDOUT: %.loc12_13.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc12_13: init type = call constants.%Int(%.loc12_13.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc12_13.2: type = value_of_initializer %int.make_type_signed.loc12_13 [template = constants.%i32]
// CHECK:STDOUT: %.loc12_13.3: type = converted %int.make_type_signed.loc12_13, %.loc12_13.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc12_23: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc12_23: init type = call constants.%Int(%.loc12_23) [template = constants.%i32]
// CHECK:STDOUT: %.loc12_27.1: %tuple.type.1 = tuple_literal (%int.make_type_signed.loc12_23)
// CHECK:STDOUT: %.loc12_27.2: type = value_of_initializer %int.make_type_signed.loc12_23 [template = constants.%i32]
// CHECK:STDOUT: %.loc12_27.3: type = converted %int.make_type_signed.loc12_23, %.loc12_27.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc12_27.4: type = converted %.loc12_27.1, constants.%tuple.type.2 [template = constants.%tuple.type.2]
// CHECK:STDOUT: %.loc12_28: type = struct_type {.a: %i32, .b: %tuple.type.2} [template = constants.%.2]
// CHECK:STDOUT: %y.var: ref %.2 = var y
// CHECK:STDOUT: %y: ref %.2 = bind_name y, %y.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc11_38: Core.IntLiteral = int_value 1 [template = constants.%.4]
// CHECK:STDOUT: %.loc11_47: Core.IntLiteral = int_value 2 [template = constants.%.5]
// CHECK:STDOUT: %.loc11_49.1: %tuple.type.3 = tuple_literal (%.loc11_47)
// CHECK:STDOUT: %.loc11_50.1: %.6 = struct_literal (%.loc11_38, %.loc11_49.1)
// CHECK:STDOUT: %.loc11_50.2: %Convert.type.2 = interface_witness_access constants.%.30, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc11_50.3: <bound method> = bound_method %.loc11_38, %.loc11_50.2 [template = constants.%.31]
// CHECK:STDOUT: %.loc11_50.4: <specific function> = specific_function %.loc11_50.3, @Convert.2(constants.%.1) [template = constants.%.32]
// CHECK:STDOUT: %int.convert_checked.loc11_50: init %i32 = call %.loc11_50.4(%.loc11_38) [template = constants.%.33]
// CHECK:STDOUT: %.loc11_50.5: init %i32 = converted %.loc11_38, %int.convert_checked.loc11_50 [template = constants.%.33]
// CHECK:STDOUT: %.loc11_50.6: ref %i32 = struct_access file.%x.var, element0
// CHECK:STDOUT: %.loc11_50.7: init %i32 = initialize_from %.loc11_50.5 to %.loc11_50.6 [template = constants.%.33]
// CHECK:STDOUT: %.loc11_49.2: %Convert.type.2 = interface_witness_access constants.%.30, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc11_49.3: <bound method> = bound_method %.loc11_47, %.loc11_49.2 [template = constants.%.34]
// CHECK:STDOUT: %.loc11_49.4: <specific function> = specific_function %.loc11_49.3, @Convert.2(constants.%.1) [template = constants.%.35]
// CHECK:STDOUT: %int.convert_checked.loc11_49: init %i32 = call %.loc11_49.4(%.loc11_47) [template = constants.%.36]
// CHECK:STDOUT: %.loc11_49.5: init %i32 = converted %.loc11_47, %int.convert_checked.loc11_49 [template = constants.%.36]
// CHECK:STDOUT: %.loc11_50.8: ref %tuple.type.2 = struct_access file.%x.var, element1
// CHECK:STDOUT: %.loc11_49.6: init %tuple.type.2 = tuple_init (%.loc11_49.5) to %.loc11_50.8 [template = constants.%tuple]
// CHECK:STDOUT: %.loc11_50.9: init %tuple.type.2 = converted %.loc11_49.1, %.loc11_49.6 [template = constants.%tuple]
// CHECK:STDOUT: %.loc11_50.10: init %tuple.type.2 = initialize_from %.loc11_50.9 to %.loc11_50.8 [template = constants.%tuple]
// CHECK:STDOUT: %.loc11_50.11: init %.2 = struct_init (%.loc11_50.7, %.loc11_50.10) to file.%x.var [template = constants.%struct]
// CHECK:STDOUT: %.loc11_51: init %.2 = converted %.loc11_50.1, %.loc11_50.11 [template = constants.%struct]
// CHECK:STDOUT: assign file.%x.var, %.loc11_51
// CHECK:STDOUT: %x.ref: ref %.2 = name_ref x, file.%x
// CHECK:STDOUT: %.loc12_32.1: ref %i32 = struct_access %x.ref, element0
// CHECK:STDOUT: %.loc12_32.2: %i32 = bind_value %.loc12_32.1
// CHECK:STDOUT: %.loc12_32.3: ref %i32 = struct_access file.%y.var, element0
// CHECK:STDOUT: %.loc12_32.4: init %i32 = initialize_from %.loc12_32.2 to %.loc12_32.3
// CHECK:STDOUT: %.loc12_32.5: ref %tuple.type.2 = struct_access %x.ref, element1
// CHECK:STDOUT: %.loc12_32.6: ref %i32 = tuple_access %.loc12_32.5, element0
// CHECK:STDOUT: %.loc12_32.7: %i32 = bind_value %.loc12_32.6
// CHECK:STDOUT: %.loc12_32.8: ref %tuple.type.2 = struct_access file.%y.var, element1
// CHECK:STDOUT: %.loc12_32.9: init %tuple.type.2 = tuple_init (%.loc12_32.7) to %.loc12_32.8
// CHECK:STDOUT: %.loc12_32.10: init %tuple.type.2 = converted %.loc12_32.5, %.loc12_32.9
// CHECK:STDOUT: %.loc12_32.11: init %tuple.type.2 = initialize_from %.loc12_32.10 to %.loc12_32.8
// CHECK:STDOUT: %.loc12_32.12: init %.2 = struct_init (%.loc12_32.4, %.loc12_32.11) to file.%y.var
// CHECK:STDOUT: %.loc12_33: init %.2 = converted %x.ref, %.loc12_32.12
// CHECK:STDOUT: assign file.%y.var, %.loc12_33
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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