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carbon-lang/toolchain/check/testdata/function/generic/resolve_used.carbon
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Jon Ross-Perkins 7ccc1e0144 Expand naming for impls and functions (#5808) 
Change impls from `<interface>.impl` to `<self>.as.<interface>.impl`,
and *member* functions to `<parent scope>.<fn>` (non-member functions
exclude their parent scope). Stop special-casing builtin functions,
given the new naming scheme.

The purpose of this is to make it clearer when a member function is
being accessed and, if so, which member function. In particular, we
often access interface `Op` functions. The builtin function
special-casing was intended to help with that, but we still have lots of
`Op` functions. This particular approach should make the interactions
clearer.

This changes up queueing of block IDs a little because, in particular,
we need to process bodies of entities only after constants finish
processing. But, it should also result in less memory usage during
processing because it means we have less on the insts stack at any given
time, since we track a block rather than all instructions contained by
the block.
2025-07-21 18:45:07 +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
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.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/function/generic/resolve_used.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/generic/resolve_used.carbon
// CHECK:STDERR: min_prelude/parts/int.carbon:10:9: error: integer type width of 0 is not positive [IntWidthNotPositive]
// CHECK:STDERR: adapt MakeInt(N);
// CHECK:STDERR: ^~~~~~~~~~
// --- fail_todo_call_monomorphization_error.carbon
library "[[@TEST_NAME]]";
fn ErrorIfNIsZero(N:! Core.IntLiteral()) {
// Check that we resolve the definition of a used specific function by
// ensuring we produce an error when doing so. Notionally this error is
// produced as a result of instantiating the `Core.Int` template, although
// that's not how we currently model `Core.Int`.
// CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE+3]]:10: note: in `i0` used here [ResolvingSpecificHere]
// CHECK:STDERR: var v: Core.Int(N);
// CHECK:STDERR: ^~~~~~~~~~~
var v: Core.Int(N);
}
fn CallNegative() {
// CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE+4]]:3: note: in `ErrorIfNIsZero(0)` used here [ResolvingSpecificHere]
// CHECK:STDERR: ErrorIfNIsZero(0);
// CHECK:STDERR: ^~~~~~~~~~~~~~
// CHECK:STDERR:
ErrorIfNIsZero(0);
}
// CHECK:STDOUT: --- fail_todo_call_monomorphization_error.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %IntLiteral.type: type = fn_type @IntLiteral [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %IntLiteral: %IntLiteral.type = struct_value () [concrete]
// CHECK:STDOUT: %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.dc0: type = pattern_type Core.IntLiteral [concrete]
// CHECK:STDOUT: %ErrorIfNIsZero.type: type = fn_type @ErrorIfNIsZero [concrete]
// CHECK:STDOUT: %ErrorIfNIsZero: %ErrorIfNIsZero.type = struct_value () [concrete]
// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT: %Int.49d0e6.1: type = class_type @Int, @Int(%N) [symbolic]
// CHECK:STDOUT: %require_complete.b4f426.1: <witness> = require_complete_type %Int.49d0e6.1 [symbolic]
// CHECK:STDOUT: %pattern_type.8963eb.1: type = pattern_type %Int.49d0e6.1 [symbolic]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.type.bc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.46f: %T.as.Destroy.impl.Op.type.bc9 = struct_value () [symbolic]
// CHECK:STDOUT: %ptr.784: type = ptr_type %Int.49d0e6.1 [symbolic]
// CHECK:STDOUT: %require_complete.0f5: <witness> = require_complete_type %ptr.784 [symbolic]
// CHECK:STDOUT: %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %Int.49d0e6.1, @Destroy [symbolic]
// CHECK:STDOUT: %Destroy.facet.13d: %Destroy.type = facet_value %Int.49d0e6.1, (%Destroy.lookup_impl_witness) [symbolic]
// CHECK:STDOUT: %.bbc: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.13d [symbolic]
// CHECK:STDOUT: %impl.elem0.fe8: %.bbc = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
// CHECK:STDOUT: %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0.fe8, @Destroy.Op(%Destroy.facet.13d) [symbolic]
// CHECK:STDOUT: %CallNegative.type: type = fn_type @CallNegative [concrete]
// CHECK:STDOUT: %CallNegative: %CallNegative.type = struct_value () [concrete]
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete]
// CHECK:STDOUT: %ErrorIfNIsZero.specific_fn: <specific function> = specific_function %ErrorIfNIsZero, @ErrorIfNIsZero(%int_0) [concrete]
// CHECK:STDOUT: %i0: type = class_type @Int, @Int(%int_0) [concrete]
// CHECK:STDOUT: %complete_type.d94: <witness> = complete_type_witness <error> [concrete]
// CHECK:STDOUT: %pattern_type.47b: type = pattern_type %i0 [concrete]
// CHECK:STDOUT: %Destroy.impl_witness.404: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%i0) [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.type.1c2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%i0) [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.912: %T.as.Destroy.impl.Op.type.1c2 = struct_value () [concrete]
// CHECK:STDOUT: %ptr.3f1: type = ptr_type %i0 [concrete]
// CHECK:STDOUT: %complete_type.588: <witness> = complete_type_witness %ptr.3f1 [concrete]
// CHECK:STDOUT: %Destroy.facet.973: %Destroy.type = facet_value %i0, (%Destroy.impl_witness.404) [concrete]
// CHECK:STDOUT: %.9ab: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.973 [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.912, @T.as.Destroy.impl.Op(%i0) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .IntLiteral = %Core.IntLiteral
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .Destroy = %Core.Destroy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.IntLiteral: %IntLiteral.type = import_ref Core//prelude/parts/int_literal, IntLiteral, loaded [concrete = constants.%IntLiteral]
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: %Core.import_ref.0b9: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.46f)]
// CHECK:STDOUT: %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @T.as.Destroy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .ErrorIfNIsZero = %ErrorIfNIsZero.decl
// CHECK:STDOUT: .CallNegative = %CallNegative.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %ErrorIfNIsZero.decl: %ErrorIfNIsZero.type = fn_decl @ErrorIfNIsZero [concrete = constants.%ErrorIfNIsZero] {
// CHECK:STDOUT: %N.patt: %pattern_type.dc0 = symbolic_binding_pattern N, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc4_39.1: type = splice_block %.loc4_39.3 [concrete = Core.IntLiteral] {
// CHECK:STDOUT: %Core.ref.loc4: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
// CHECK:STDOUT: %IntLiteral.ref: %IntLiteral.type = name_ref IntLiteral, imports.%Core.IntLiteral [concrete = constants.%IntLiteral]
// CHECK:STDOUT: %IntLiteral.call: init type = call %IntLiteral.ref() [concrete = Core.IntLiteral]
// CHECK:STDOUT: %.loc4_39.2: type = value_of_initializer %IntLiteral.call [concrete = Core.IntLiteral]
// CHECK:STDOUT: %.loc4_39.3: type = converted %IntLiteral.call, %.loc4_39.2 [concrete = Core.IntLiteral]
// CHECK:STDOUT: }
// CHECK:STDOUT: %N.loc4_19.2: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N.loc4_19.1 (constants.%N)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %CallNegative.decl: %CallNegative.type = fn_decl @CallNegative [concrete = constants.%CallNegative] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @ErrorIfNIsZero(%N.loc4_19.2: Core.IntLiteral) {
// CHECK:STDOUT: %N.loc4_19.1: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N.loc4_19.1 (constants.%N)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Int.loc12_20.2: type = class_type @Int, @Int(%N.loc4_19.1) [symbolic = %Int.loc12_20.2 (constants.%Int.49d0e6.1)]
// CHECK:STDOUT: %require_complete.loc12_20: <witness> = require_complete_type %Int.loc12_20.2 [symbolic = %require_complete.loc12_20 (constants.%require_complete.b4f426.1)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %Int.loc12_20.2 [symbolic = %pattern_type (constants.%pattern_type.8963eb.1)]
// CHECK:STDOUT: %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %Int.loc12_20.2, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
// CHECK:STDOUT: %Destroy.facet: %Destroy.type = facet_value %Int.loc12_20.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.13d)]
// CHECK:STDOUT: %.loc12_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc12_3.2 (constants.%.bbc)]
// CHECK:STDOUT: %impl.elem0.loc12_3.2: @ErrorIfNIsZero.%.loc12_3.2 (%.bbc) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc12_3.2 (constants.%impl.elem0.fe8)]
// CHECK:STDOUT: %specific_impl_fn.loc12_3.2: <specific function> = specific_impl_function %impl.elem0.loc12_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc12_3.2 (constants.%specific_impl_fn)]
// CHECK:STDOUT: %ptr: type = ptr_type %Int.loc12_20.2 [symbolic = %ptr (constants.%ptr.784)]
// CHECK:STDOUT: %require_complete.loc12_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc12_3 (constants.%require_complete.0f5)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %v.patt: @ErrorIfNIsZero.%pattern_type (%pattern_type.8963eb.1) = binding_pattern v [concrete]
// CHECK:STDOUT: %v.var_patt: @ErrorIfNIsZero.%pattern_type (%pattern_type.8963eb.1) = var_pattern %v.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %v.var: ref @ErrorIfNIsZero.%Int.loc12_20.2 (%Int.49d0e6.1) = var %v.var_patt
// CHECK:STDOUT: %.loc12_20: type = splice_block %Int.loc12_20.1 [symbolic = %Int.loc12_20.2 (constants.%Int.49d0e6.1)] {
// CHECK:STDOUT: %Core.ref.loc12: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
// CHECK:STDOUT: %Int.ref: %Int.type = name_ref Int, imports.%Core.Int [concrete = constants.%Int.generic]
// CHECK:STDOUT: %N.ref: Core.IntLiteral = name_ref N, %N.loc4_19.2 [symbolic = %N.loc4_19.1 (constants.%N)]
// CHECK:STDOUT: %Int.loc12_20.1: type = class_type @Int, @Int(constants.%N) [symbolic = %Int.loc12_20.2 (constants.%Int.49d0e6.1)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %v: ref @ErrorIfNIsZero.%Int.loc12_20.2 (%Int.49d0e6.1) = bind_name v, %v.var
// CHECK:STDOUT: %impl.elem0.loc12_3.1: @ErrorIfNIsZero.%.loc12_3.2 (%.bbc) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc12_3.2 (constants.%impl.elem0.fe8)]
// CHECK:STDOUT: %bound_method.loc12_3.1: <bound method> = bound_method %v.var, %impl.elem0.loc12_3.1
// CHECK:STDOUT: %specific_impl_fn.loc12_3.1: <specific function> = specific_impl_function %impl.elem0.loc12_3.1, @Destroy.Op(constants.%Destroy.facet.13d) [symbolic = %specific_impl_fn.loc12_3.2 (constants.%specific_impl_fn)]
// CHECK:STDOUT: %bound_method.loc12_3.2: <bound method> = bound_method %v.var, %specific_impl_fn.loc12_3.1
// CHECK:STDOUT: %addr: @ErrorIfNIsZero.%ptr (%ptr.784) = addr_of %v.var
// CHECK:STDOUT: %.loc12_3.1: init %empty_tuple.type = call %bound_method.loc12_3.2(%addr)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallNegative() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %ErrorIfNIsZero.ref: %ErrorIfNIsZero.type = name_ref ErrorIfNIsZero, file.%ErrorIfNIsZero.decl [concrete = constants.%ErrorIfNIsZero]
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
// CHECK:STDOUT: %ErrorIfNIsZero.specific_fn: <specific function> = specific_function %ErrorIfNIsZero.ref, @ErrorIfNIsZero(constants.%int_0) [concrete = constants.%ErrorIfNIsZero.specific_fn]
// CHECK:STDOUT: %ErrorIfNIsZero.call: init %empty_tuple.type = call %ErrorIfNIsZero.specific_fn()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ErrorIfNIsZero(constants.%N) {
// CHECK:STDOUT: %N.loc4_19.1 => constants.%N
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ErrorIfNIsZero(constants.%int_0) {
// CHECK:STDOUT: %N.loc4_19.1 => constants.%int_0
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Int.loc12_20.2 => constants.%i0
// CHECK:STDOUT: %require_complete.loc12_20 => constants.%complete_type.d94
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.47b
// CHECK:STDOUT: %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.404
// CHECK:STDOUT: %Destroy.facet => constants.%Destroy.facet.973
// CHECK:STDOUT: %.loc12_3.2 => constants.%.9ab
// CHECK:STDOUT: %impl.elem0.loc12_3.2 => constants.%T.as.Destroy.impl.Op.912
// CHECK:STDOUT: %specific_impl_fn.loc12_3.2 => constants.%T.as.Destroy.impl.Op.specific_fn
// CHECK:STDOUT: %ptr => constants.%ptr.3f1
// CHECK:STDOUT: %require_complete.loc12_3 => constants.%complete_type.588
// CHECK:STDOUT: }
// CHECK:STDOUT:
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