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26ec78ec00cc00f7d6c4c6edf94b8f558100d4b8
carbon-lang/toolchain/check/testdata/function/call/prefer_unqualified_lookup.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/call/prefer_unqualified_lookup.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/call/prefer_unqualified_lookup.carbon
// --- prefer_unqualified_lookup.carbon
library "[[@TEST_NAME]]";
// F in the lexical scope.
class Class(F:! type) {
class Inner {
// F in a non-lexical scope.
fn F() -> i32 { return 0; }
fn G() -> i32;
}
}
fn Class(F:! type).Inner.G() -> i32 { return F(); }
// CHECK:STDOUT: --- prefer_unqualified_lookup.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %F: type = bind_symbolic_name F, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %Class.type: type = generic_class_type @Class [concrete]
// CHECK:STDOUT: %Class.generic: %Class.type = struct_value () [concrete]
// CHECK:STDOUT: %Class: type = class_type @Class, @Class(%F) [symbolic]
// CHECK:STDOUT: %Inner: type = class_type @Inner, @Inner(%F) [symbolic]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %Inner.F.type: type = fn_type @Inner.F, @Inner(%F) [symbolic]
// CHECK:STDOUT: %Inner.F: %Inner.F.type = struct_value () [symbolic]
// CHECK:STDOUT: %Inner.G.type: type = fn_type @Inner.G, @Inner(%F) [symbolic]
// CHECK:STDOUT: %Inner.G: %Inner.G.type = struct_value () [symbolic]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
// CHECK:STDOUT: %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT: %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
// CHECK:STDOUT: %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
// CHECK:STDOUT: %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
// CHECK:STDOUT: %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
// CHECK:STDOUT: %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT: %int_0.6a9: %i32 = int_value 0 [concrete]
// CHECK:STDOUT: %Inner.F.specific_fn: <specific function> = specific_function %Inner.F, @Inner.F(%F) [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT: %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
// CHECK:STDOUT: %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.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: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Class.decl: %Class.type = class_decl @Class [concrete = constants.%Class.generic] {
// CHECK:STDOUT: %F.patt: %pattern_type.98f = symbolic_binding_pattern F, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %F.loc5_13.2: type = bind_symbolic_name F, 0 [symbolic = %F.loc5_13.1 (constants.%F)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Inner.G.decl: %Inner.G.type = fn_decl @Inner.G [symbolic = constants.%Inner.G] {
// CHECK:STDOUT: %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %F.loc13_10: type = bind_symbolic_name F, 0 [symbolic = @Class.%F.loc5_13.1 (constants.%F)]
// CHECK:STDOUT: %int_32.loc13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: %return.param.loc13: ref %i32 = out_param call_param0
// CHECK:STDOUT: %return.loc13: ref %i32 = return_slot %return.param.loc13
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Class(%F.loc5_13.2: type) {
// CHECK:STDOUT: %F.loc5_13.1: type = bind_symbolic_name F, 0 [symbolic = %F.loc5_13.1 (constants.%F)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Inner: type = class_type @Inner, @Inner(%F.loc5_13.1) [symbolic = %Inner (constants.%Inner)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %Inner.decl: type = class_decl @Inner [symbolic = @Class.%Inner (constants.%Inner)] {} {}
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Class
// CHECK:STDOUT: .Inner = %Inner.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Inner(@Class.%F.loc5_13.2: type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %F: type = bind_symbolic_name F, 0 [symbolic = %F (constants.%F)]
// CHECK:STDOUT: %Inner.F.type: type = fn_type @Inner.F, @Inner(%F) [symbolic = %Inner.F.type (constants.%Inner.F.type)]
// CHECK:STDOUT: %Inner.F: @Inner.%Inner.F.type (%Inner.F.type) = struct_value () [symbolic = %Inner.F (constants.%Inner.F)]
// CHECK:STDOUT: %Inner.G.type: type = fn_type @Inner.G, @Inner(%F) [symbolic = %Inner.G.type (constants.%Inner.G.type)]
// CHECK:STDOUT: %Inner.G: @Inner.%Inner.G.type (%Inner.G.type) = struct_value () [symbolic = %Inner.G (constants.%Inner.G)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %Inner.F.decl: @Inner.%Inner.F.type (%Inner.F.type) = fn_decl @Inner.F [symbolic = @Inner.%Inner.F (constants.%Inner.F)] {
// CHECK:STDOUT: %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Inner.G.decl: @Inner.%Inner.G.type (%Inner.G.type) = fn_decl @Inner.G [symbolic = @Inner.%Inner.G (constants.%Inner.G)] {
// CHECK:STDOUT: %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %int_32.loc9: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc9: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: %return.param.loc9: ref %i32 = out_param call_param0
// CHECK:STDOUT: %return.loc9: ref %i32 = return_slot %return.param.loc9
// CHECK:STDOUT: }
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Inner
// CHECK:STDOUT: .F = %Inner.F.decl
// CHECK:STDOUT: .G = %Inner.G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Inner.F(@Class.%F.loc5_13.2: type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT: fn() -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
// CHECK:STDOUT: %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
// CHECK:STDOUT: %bound_method.loc8_29.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_29.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc8_29.2(%int_0) [concrete = constants.%int_0.6a9]
// CHECK:STDOUT: %.loc8_29.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
// CHECK:STDOUT: %.loc8_29.2: %i32 = converted %int_0, %.loc8_29.1 [concrete = constants.%int_0.6a9]
// CHECK:STDOUT: return %.loc8_29.2
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Inner.G(@Class.%F.loc5_13.2: type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %F.loc13_46: type = bind_symbolic_name F, 0 [symbolic = %F.loc13_46 (constants.%F)]
// CHECK:STDOUT: %Inner.F.type: type = fn_type @Inner.F, @Inner(%F.loc13_46) [symbolic = %Inner.F.type (constants.%Inner.F.type)]
// CHECK:STDOUT: %Inner.F: @Inner.G.%Inner.F.type (%Inner.F.type) = struct_value () [symbolic = %Inner.F (constants.%Inner.F)]
// CHECK:STDOUT: %Inner.F.specific_fn.loc13_46.2: <specific function> = specific_function %Inner.F, @Inner.F(%F.loc13_46) [symbolic = %Inner.F.specific_fn.loc13_46.2 (constants.%Inner.F.specific_fn)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn() -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc13_46: @Inner.G.%Inner.F.type (%Inner.F.type) = specific_constant @Inner.%Inner.F.decl, @Inner(constants.%F) [symbolic = %Inner.F (constants.%Inner.F)]
// CHECK:STDOUT: %F.ref: @Inner.G.%Inner.F.type (%Inner.F.type) = name_ref F, %.loc13_46 [symbolic = %Inner.F (constants.%Inner.F)]
// CHECK:STDOUT: %Inner.F.specific_fn.loc13_46.1: <specific function> = specific_function %F.ref, @Inner.F(constants.%F) [symbolic = %Inner.F.specific_fn.loc13_46.2 (constants.%Inner.F.specific_fn)]
// CHECK:STDOUT: %Inner.F.call: init %i32 = call %Inner.F.specific_fn.loc13_46.1()
// CHECK:STDOUT: %.loc13_49.1: %i32 = value_of_initializer %Inner.F.call
// CHECK:STDOUT: %.loc13_49.2: %i32 = converted %Inner.F.call, %.loc13_49.1
// CHECK:STDOUT: return %.loc13_49.2
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Class(constants.%F) {
// CHECK:STDOUT: %F.loc5_13.1 => constants.%F
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Inner => constants.%Inner
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Inner(constants.%F) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %F => constants.%F
// CHECK:STDOUT: %Inner.F.type => constants.%Inner.F.type
// CHECK:STDOUT: %Inner.F => constants.%Inner.F
// CHECK:STDOUT: %Inner.G.type => constants.%Inner.G.type
// CHECK:STDOUT: %Inner.G => constants.%Inner.G
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Inner.F(constants.%F) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Inner.G(constants.%F) {}
// CHECK:STDOUT:
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