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carbon-lang/toolchain/check/testdata/array/fail_bound_negative.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/array/fail_bound_negative.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/fail_bound_negative.carbon
fn Negate(n: i32) -> i32 = "int.snegate";
// CHECK:STDERR: fail_bound_negative.carbon:[[@LINE+3]]:14: error: array bound of -1 is negative [ArrayBoundNegative]
// CHECK:STDERR: var a: [i32; Negate(1)];
// CHECK:STDERR: ^~~~~~~
var a: [i32; Negate(1)];
// CHECK:STDOUT: --- fail_bound_negative.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: %Negate.type: type = fn_type @Negate [template]
// CHECK:STDOUT: %Negate: %Negate.type = struct_value () [template]
// CHECK:STDOUT: %.2: Core.IntLiteral = int_value 1 [template]
// CHECK:STDOUT: %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
// CHECK:STDOUT: %Convert.type.6: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [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: %.26: <witness> = interface_witness (%Convert.14) [template]
// CHECK:STDOUT: %.27: <bound method> = bound_method %.2, %Convert.14 [template]
// CHECK:STDOUT: %.28: <specific function> = specific_function %.27, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.29: %i32 = int_value 1 [template]
// CHECK:STDOUT: %.30: %i32 = int_value -1 [template]
// CHECK:STDOUT: %Convert.type.15: type = fn_type @Convert.4, @impl.3(%.1) [template]
// CHECK:STDOUT: %Convert.15: %Convert.type.15 = struct_value () [template]
// CHECK:STDOUT: %.31: <witness> = interface_witness (%Convert.15) [template]
// CHECK:STDOUT: %.32: <bound method> = bound_method %.30, %Convert.15 [template]
// CHECK:STDOUT: %.33: <specific function> = specific_function %.32, @Convert.4(%.1) [template]
// CHECK:STDOUT: %.34: Core.IntLiteral = int_value -1 [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: .Negate = %Negate.decl
// CHECK:STDOUT: .a = %a
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Negate.decl: %Negate.type = fn_decl @Negate [template = constants.%Negate] {
// CHECK:STDOUT: %n.patt: %i32 = binding_pattern n
// CHECK:STDOUT: %n.param_patt: %i32 = value_param_pattern %n.patt, runtime_param0
// CHECK:STDOUT: %return.patt: %i32 = return_slot_pattern
// CHECK:STDOUT: %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc11_14.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc11_14: init type = call constants.%Int(%.loc11_14.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc11_14.2: type = value_of_initializer %int.make_type_signed.loc11_14 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_14.3: type = converted %int.make_type_signed.loc11_14, %.loc11_14.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_22.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed.loc11_22: init type = call constants.%Int(%.loc11_22.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc11_22.2: type = value_of_initializer %int.make_type_signed.loc11_22 [template = constants.%i32]
// CHECK:STDOUT: %.loc11_22.3: type = converted %int.make_type_signed.loc11_22, %.loc11_22.2 [template = constants.%i32]
// CHECK:STDOUT: %n.param: %i32 = value_param runtime_param0
// CHECK:STDOUT: %n: %i32 = bind_name n, %n.param
// CHECK:STDOUT: %return.param: ref %i32 = out_param runtime_param1
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc16_9.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed: init type = call constants.%Int(%.loc16_9.1) [template = constants.%i32]
// CHECK:STDOUT: %Negate.ref: %Negate.type = name_ref Negate, %Negate.decl [template = constants.%Negate]
// CHECK:STDOUT: %.loc16_21.1: Core.IntLiteral = int_value 1 [template = constants.%.2]
// CHECK:STDOUT: %.loc16_21.2: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc16_21.3: <bound method> = bound_method %.loc16_21.1, %.loc16_21.2 [template = constants.%.27]
// CHECK:STDOUT: %.loc16_21.4: <specific function> = specific_function %.loc16_21.3, @Convert.2(constants.%.1) [template = constants.%.28]
// CHECK:STDOUT: %int.convert_checked.loc16_21: init %i32 = call %.loc16_21.4(%.loc16_21.1) [template = constants.%.29]
// CHECK:STDOUT: %.loc16_21.5: %i32 = value_of_initializer %int.convert_checked.loc16_21 [template = constants.%.29]
// CHECK:STDOUT: %.loc16_21.6: %i32 = converted %.loc16_21.1, %.loc16_21.5 [template = constants.%.29]
// CHECK:STDOUT: %int.snegate: init %i32 = call %Negate.ref(%.loc16_21.6) [template = constants.%.30]
// CHECK:STDOUT: %.loc16_9.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
// CHECK:STDOUT: %.loc16_9.3: type = converted %int.make_type_signed, %.loc16_9.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc16_20.1: %Convert.type.6 = interface_witness_access constants.%.31, element0 [template = constants.%Convert.15]
// CHECK:STDOUT: %.loc16_20.2: <bound method> = bound_method %int.snegate, %.loc16_20.1 [template = constants.%.32]
// CHECK:STDOUT: %.loc16_20.3: <specific function> = specific_function %.loc16_20.2, @Convert.4(constants.%.1) [template = constants.%.33]
// CHECK:STDOUT: %.loc16_20.4: %i32 = value_of_initializer %int.snegate [template = constants.%.30]
// CHECK:STDOUT: %.loc16_20.5: %i32 = converted %int.snegate, %.loc16_20.4 [template = constants.%.30]
// CHECK:STDOUT: %int.convert_checked.loc16_20: init Core.IntLiteral = call %.loc16_20.3(%.loc16_20.5) [template = constants.%.34]
// CHECK:STDOUT: %.loc16_20.6: Core.IntLiteral = value_of_initializer %int.convert_checked.loc16_20 [template = constants.%.34]
// CHECK:STDOUT: %.loc16_20.7: Core.IntLiteral = converted %int.snegate, %.loc16_20.6 [template = constants.%.34]
// CHECK:STDOUT: %.loc16_23: type = array_type %.loc16_20.7, %i32 [template = <error>]
// CHECK:STDOUT: %a.var: ref <error> = var a
// CHECK:STDOUT: %a: ref <error> = bind_name a, %a.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Negate(%n.param_patt: %i32) -> %i32 = "int.snegate";
// CHECK:STDOUT:
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