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carbon-lang/toolchain/check/testdata/class/forward_declared.carbon
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Geoff Romer 09710d102f Separate binding insts for refs and values (#6235) 
This resolves a TODO in `expr_info.cpp` by using the inst kind rather
than the bound value to track the binding's category.

Since we're churning all the `bind_name` insts in testdata anyway, I'm
also taking this opportunity to align the inst naming with the design's
terminology, by calling these insts "bindings" (this aspect of the PR is
dependent on #6231 resolving an ambiguity in that terminology). For
consistency we'll need to rename several other insts as well (see the
TODO on `RefBinding`); I'm deferring that to a separate PR to minimize
the review load, but I think those name changes are in-scope for this
review.
2025-10-23 01:46:24 +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/convert.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/class/forward_declared.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/forward_declared.carbon
class Class;
fn F(p: Class*) -> Class* { return p; }
// CHECK:STDOUT: --- forward_declared.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Class: type = class_type @Class [concrete]
// CHECK:STDOUT: %ptr.e71: type = ptr_type %Class [concrete]
// CHECK:STDOUT: %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Copy.Op.type: type = fn_type @Copy.Op [concrete]
// CHECK:STDOUT: %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.type.31f: type = fn_type @ptr.as.Copy.impl.Op, @ptr.as.Copy.impl(%T.8b3) [symbolic]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.8a8: %ptr.as.Copy.impl.Op.type.31f = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.929: <witness> = impl_witness imports.%Copy.impl_witness_table.53c, @ptr.as.Copy.impl(%Class) [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.type.039: type = fn_type @ptr.as.Copy.impl.Op, @ptr.as.Copy.impl(%Class) [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.275: %ptr.as.Copy.impl.Op.type.039 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %ptr.e71, (%Copy.impl_witness.929) [concrete]
// CHECK:STDOUT: %.93e: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %ptr.as.Copy.impl.Op.275, @ptr.as.Copy.impl.Op(%Class) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Copy = %Core.Copy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
// CHECK:STDOUT: %Core.import_ref.0e4: @ptr.as.Copy.impl.%ptr.as.Copy.impl.Op.type (%ptr.as.Copy.impl.Op.type.31f) = import_ref Core//prelude/parts/copy, loc{{\d+_\d+}}, loaded [symbolic = @ptr.as.Copy.impl.%ptr.as.Copy.impl.Op (constants.%ptr.as.Copy.impl.Op.8a8)]
// CHECK:STDOUT: %Copy.impl_witness_table.53c = impl_witness_table (%Core.import_ref.0e4), @ptr.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// 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 [concrete = constants.%Class] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT: %p.patt: %pattern_type.796 = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type.796 = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: %return.patt: %pattern_type.796 = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: %pattern_type.796 = out_param_pattern %return.patt, call_param1 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Class.ref.loc17_20: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %ptr.loc17_25: type = ptr_type %Class.ref.loc17_20 [concrete = constants.%ptr.e71]
// CHECK:STDOUT: %p.param: %ptr.e71 = value_param call_param0
// CHECK:STDOUT: %.loc17: type = splice_block %ptr.loc17_14 [concrete = constants.%ptr.e71] {
// CHECK:STDOUT: %Class.ref.loc17_9: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %ptr.loc17_14: type = ptr_type %Class.ref.loc17_9 [concrete = constants.%ptr.e71]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %ptr.e71 = value_binding p, %p.param
// CHECK:STDOUT: %return.param: ref %ptr.e71 = out_param call_param1
// CHECK:STDOUT: %return: ref %ptr.e71 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%p.param: %ptr.e71) -> %ptr.e71 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %p.ref: %ptr.e71 = name_ref p, %p
// CHECK:STDOUT: %impl.elem0: %.93e = impl_witness_access constants.%Copy.impl_witness.929, element0 [concrete = constants.%ptr.as.Copy.impl.Op.275]
// CHECK:STDOUT: %bound_method.loc17_36.1: <bound method> = bound_method %p.ref, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @ptr.as.Copy.impl.Op(constants.%Class) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc17_36.2: <bound method> = bound_method %p.ref, %specific_fn
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call: init %ptr.e71 = call %bound_method.loc17_36.2(%p.ref)
// CHECK:STDOUT: return %ptr.as.Copy.impl.Op.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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