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7ccc1e0144a6454bf31c94a0d0d0566186921280
carbon-lang/toolchain/check/testdata/for/basic.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/for.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/for/basic.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/for/basic.carbon
// --- fail_not_range.carbon
library "[[@TEST_NAME]]";
fn Run() {
// TODO: These diagnostics could be better. If nothing else, we should only diagnose once.
// CHECK:STDERR: fail_not_range.carbon:[[@LINE+8]]:7: error: cannot access member of interface `Core.Iterate` in type `{}` that does not implement that interface [MissingImplInMemberAccess]
// CHECK:STDERR: for (c: {} in {}) {
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
// CHECK:STDERR: fail_not_range.carbon:[[@LINE+4]]:7: error: cannot access member of interface `Core.Iterate` in type `{}` that does not implement that interface [MissingImplInMemberAccess]
// CHECK:STDERR: for (c: {} in {}) {
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
for (c: {} in {}) {
}
}
// --- trivial.carbon
library "[[@TEST_NAME]]";
class TrivialRange {
impl as Core.Iterate where .CursorType = () and .ElementType = () {
fn NewCursor[self: Self]() {}
fn Next[self: Self](cursor: ()*) -> Core.Optional(()) {
return Core.Optional(()).None();
}
}
}
fn Body();
fn AfterLoop();
fn Run() {
//@dump-sem-ir-begin
for (_: () in {} as TrivialRange) {
Body();
}
AfterLoop();
//@dump-sem-ir-end
}
// CHECK:STDOUT: --- trivial.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %TrivialRange: type = class_type @TrivialRange [concrete]
// CHECK:STDOUT: %Iterate.type: type = facet_type <@Iterate> [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %Iterate.NewCursor.type: type = fn_type @Iterate.NewCursor [concrete]
// CHECK:STDOUT: %Iterate.Next.type: type = fn_type @Iterate.Next [concrete]
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %Optional.HasValue.type.a15: type = fn_type @Optional.HasValue, @Optional(%T) [symbolic]
// CHECK:STDOUT: %Optional.HasValue.73f: %Optional.HasValue.type.a15 = struct_value () [symbolic]
// CHECK:STDOUT: %Optional.Get.type.e03: type = fn_type @Optional.Get, @Optional(%T) [symbolic]
// CHECK:STDOUT: %Optional.Get.971: %Optional.Get.type.e03 = struct_value () [symbolic]
// CHECK:STDOUT: %Iterate.impl_witness: <witness> = impl_witness @TrivialRange.%Iterate.impl_witness_table [concrete]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.1: type = fn_type @TrivialRange.as.Iterate.impl.NewCursor.loc6_32.1 [concrete]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.NewCursor.c20a1c.1: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.1 = struct_value () [concrete]
// CHECK:STDOUT: %ptr.843: type = ptr_type %empty_tuple.type [concrete]
// CHECK:STDOUT: %Optional.f9a: type = class_type @Optional, @Optional(%empty_tuple.type) [concrete]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.Next.type: type = fn_type @TrivialRange.as.Iterate.impl.Next [concrete]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.Next: %TrivialRange.as.Iterate.impl.Next.type = struct_value () [concrete]
// CHECK:STDOUT: %Iterate.facet.d50: %Iterate.type = facet_value %TrivialRange, (%Iterate.impl_witness) [concrete]
// CHECK:STDOUT: %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.2: type = fn_type @TrivialRange.as.Iterate.impl.NewCursor.loc6_32.2 [concrete]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.NewCursor.c20a1c.2: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.2 = struct_value () [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %Optional.HasValue.type.b7a: type = fn_type @Optional.HasValue, @Optional(%empty_tuple.type) [concrete]
// CHECK:STDOUT: %Optional.HasValue.ada: %Optional.HasValue.type.b7a = struct_value () [concrete]
// CHECK:STDOUT: %Optional.Get.type.130: type = fn_type @Optional.Get, @Optional(%empty_tuple.type) [concrete]
// CHECK:STDOUT: %Optional.Get.6e8: %Optional.Get.type.130 = struct_value () [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.type.7e4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%Optional.f9a) [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.466: %T.as.Destroy.impl.Op.type.7e4 = struct_value () [concrete]
// CHECK:STDOUT: %ptr.511: type = ptr_type %Optional.f9a [concrete]
// CHECK:STDOUT: %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
// CHECK:STDOUT: %Body.type: type = fn_type @Body [concrete]
// CHECK:STDOUT: %Body: %Body.type = struct_value () [concrete]
// CHECK:STDOUT: %AfterLoop.type: type = fn_type @AfterLoop [concrete]
// CHECK:STDOUT: %AfterLoop: %AfterLoop.type = struct_value () [concrete]
// CHECK:STDOUT: %TrivialRange.val: %TrivialRange = struct_value () [concrete]
// CHECK:STDOUT: %.510: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet.d50 [concrete]
// CHECK:STDOUT: %.708: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet.d50 [concrete]
// CHECK:STDOUT: %Optional.HasValue.specific_fn: <specific function> = specific_function %Optional.HasValue.ada, @Optional.HasValue(%empty_tuple.type) [concrete]
// CHECK:STDOUT: %Optional.Get.specific_fn: <specific function> = specific_function %Optional.Get.6e8, @Optional.Get(%empty_tuple.type) [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.type.8d6: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%TrivialRange) [concrete]
// CHECK:STDOUT: %T.as.Destroy.impl.Op.90d: %T.as.Destroy.impl.Op.type.8d6 = struct_value () [concrete]
// CHECK:STDOUT: %ptr.41d: type = ptr_type %TrivialRange [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.cd6: @Optional.%Optional.HasValue.type (%Optional.HasValue.type.a15) = import_ref Core//prelude/parts/iterate, inst98 [indirect], loaded [symbolic = @Optional.%Optional.HasValue (constants.%Optional.HasValue.73f)]
// CHECK:STDOUT: %Core.import_ref.4fd: @Optional.%Optional.Get.type (%Optional.Get.type.e03) = import_ref Core//prelude/parts/iterate, inst99 [indirect], loaded [symbolic = @Optional.%Optional.Get (constants.%Optional.Get.971)]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Run() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %_.patt: %pattern_type.cb1 = binding_pattern _ [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc18_18.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %TrivialRange.ref: type = name_ref TrivialRange, file.%TrivialRange.decl [concrete = constants.%TrivialRange]
// CHECK:STDOUT: %.loc18_18.2: ref %TrivialRange = temporary_storage
// CHECK:STDOUT: %.loc18_18.3: init %TrivialRange = class_init (), %.loc18_18.2 [concrete = constants.%TrivialRange.val]
// CHECK:STDOUT: %.loc18_18.4: ref %TrivialRange = temporary %.loc18_18.2, %.loc18_18.3
// CHECK:STDOUT: %.loc18_20.1: ref %TrivialRange = converted %.loc18_18.1, %.loc18_18.4
// CHECK:STDOUT: %impl.elem2: %.510 = impl_witness_access constants.%Iterate.impl_witness, element2 [concrete = constants.%TrivialRange.as.Iterate.impl.NewCursor.c20a1c.2]
// CHECK:STDOUT: %bound_method.loc18_35.1: <bound method> = bound_method %.loc18_20.1, %impl.elem2
// CHECK:STDOUT: %.loc18_20.2: %TrivialRange = bind_value %.loc18_20.1
// CHECK:STDOUT: %NewCursor.ref: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.1 = name_ref NewCursor, @TrivialRange.as.Iterate.impl.%TrivialRange.as.Iterate.impl.NewCursor.decl.loc6_32.1 [concrete = constants.%TrivialRange.as.Iterate.impl.NewCursor.c20a1c.1]
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.NewCursor.bound: <bound method> = bound_method %.loc18_20.2, %NewCursor.ref
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.NewCursor.call: init %empty_tuple.type = call %TrivialRange.as.Iterate.impl.NewCursor.bound(%.loc18_20.2)
// CHECK:STDOUT: %var: ref %empty_tuple.type = var invalid
// CHECK:STDOUT: assign %var, %TrivialRange.as.Iterate.impl.NewCursor.call
// CHECK:STDOUT: br !for.next
// CHECK:STDOUT:
// CHECK:STDOUT: !for.next:
// CHECK:STDOUT: %addr.loc18_35.1: %ptr.843 = addr_of %var
// CHECK:STDOUT: %impl.elem3: %.708 = impl_witness_access constants.%Iterate.impl_witness, element3 [concrete = constants.%TrivialRange.as.Iterate.impl.Next]
// CHECK:STDOUT: %bound_method.loc18_35.2: <bound method> = bound_method %.loc18_20.1, %impl.elem3
// CHECK:STDOUT: %.loc18_35.1: ref %Optional.f9a = temporary_storage
// CHECK:STDOUT: %.loc18_20.3: %TrivialRange = bind_value %.loc18_20.1
// CHECK:STDOUT: %TrivialRange.as.Iterate.impl.Next.call: init %Optional.f9a = call %bound_method.loc18_35.2(%.loc18_20.3, %addr.loc18_35.1) to %.loc18_35.1
// CHECK:STDOUT: %.loc18_35.2: ref %Optional.f9a = temporary %.loc18_35.1, %TrivialRange.as.Iterate.impl.Next.call
// CHECK:STDOUT: %.loc18_35.3: %Optional.HasValue.type.b7a = specific_constant imports.%Core.import_ref.cd6, @Optional(constants.%empty_tuple.type) [concrete = constants.%Optional.HasValue.ada]
// CHECK:STDOUT: %HasValue.ref: %Optional.HasValue.type.b7a = name_ref HasValue, %.loc18_35.3 [concrete = constants.%Optional.HasValue.ada]
// CHECK:STDOUT: %Optional.HasValue.bound: <bound method> = bound_method %.loc18_35.2, %HasValue.ref
// CHECK:STDOUT: %Optional.HasValue.specific_fn: <specific function> = specific_function %HasValue.ref, @Optional.HasValue(constants.%empty_tuple.type) [concrete = constants.%Optional.HasValue.specific_fn]
// CHECK:STDOUT: %bound_method.loc18_35.3: <bound method> = bound_method %.loc18_35.2, %Optional.HasValue.specific_fn
// CHECK:STDOUT: %.loc18_35.4: %Optional.f9a = bind_value %.loc18_35.2
// CHECK:STDOUT: %Optional.HasValue.call: init bool = call %bound_method.loc18_35.3(%.loc18_35.4)
// CHECK:STDOUT: %.loc18_35.5: bool = value_of_initializer %Optional.HasValue.call
// CHECK:STDOUT: %.loc18_35.6: bool = converted %Optional.HasValue.call, %.loc18_35.5
// CHECK:STDOUT: if %.loc18_35.6 br !for.body else br !for.done
// CHECK:STDOUT:
// CHECK:STDOUT: !for.body:
// CHECK:STDOUT: %.loc18_35.7: %Optional.Get.type.130 = specific_constant imports.%Core.import_ref.4fd, @Optional(constants.%empty_tuple.type) [concrete = constants.%Optional.Get.6e8]
// CHECK:STDOUT: %Get.ref: %Optional.Get.type.130 = name_ref Get, %.loc18_35.7 [concrete = constants.%Optional.Get.6e8]
// CHECK:STDOUT: %Optional.Get.bound: <bound method> = bound_method %.loc18_35.2, %Get.ref
// CHECK:STDOUT: %Optional.Get.specific_fn: <specific function> = specific_function %Get.ref, @Optional.Get(constants.%empty_tuple.type) [concrete = constants.%Optional.Get.specific_fn]
// CHECK:STDOUT: %bound_method.loc18_35.4: <bound method> = bound_method %.loc18_35.2, %Optional.Get.specific_fn
// CHECK:STDOUT: %.loc18_35.8: %Optional.f9a = bind_value %.loc18_35.2
// CHECK:STDOUT: %Optional.Get.call: init %empty_tuple.type = call %bound_method.loc18_35.4(%.loc18_35.8)
// CHECK:STDOUT: %.loc18_12.1: type = splice_block %.loc18_12.3 [concrete = constants.%empty_tuple.type] {
// CHECK:STDOUT: %.loc18_12.2: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc18_12.3: type = converted %.loc18_12.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc18_35.9: ref %empty_tuple.type = temporary_storage
// CHECK:STDOUT: %.loc18_35.10: ref %empty_tuple.type = temporary %.loc18_35.9, %Optional.Get.call
// CHECK:STDOUT: %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
// CHECK:STDOUT: %.loc18_35.11: %empty_tuple.type = converted %Optional.Get.call, %tuple [concrete = constants.%empty_tuple]
// CHECK:STDOUT: %_: %empty_tuple.type = bind_name _, %.loc18_35.11
// CHECK:STDOUT: %Body.ref: %Body.type = name_ref Body, file.%Body.decl [concrete = constants.%Body]
// CHECK:STDOUT: %Body.call: init %empty_tuple.type = call %Body.ref()
// CHECK:STDOUT: br !for.next
// CHECK:STDOUT:
// CHECK:STDOUT: !for.done:
// CHECK:STDOUT: %AfterLoop.ref: %AfterLoop.type = name_ref AfterLoop, file.%AfterLoop.decl [concrete = constants.%AfterLoop]
// CHECK:STDOUT: %AfterLoop.call: init %empty_tuple.type = call %AfterLoop.ref()
// CHECK:STDOUT: %T.as.Destroy.impl.Op.bound.loc18_35.1: <bound method> = bound_method %.loc18_35.9, constants.%T.as.Destroy.impl.Op.ea3
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc18_35.5: <bound method> = bound_method %.loc18_35.9, %T.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc18_35.2: %ptr.843 = addr_of %.loc18_35.9
// CHECK:STDOUT: %T.as.Destroy.impl.Op.call.loc18_35.1: init %empty_tuple.type = call %bound_method.loc18_35.5(%addr.loc18_35.2)
// CHECK:STDOUT: %T.as.Destroy.impl.Op.bound.loc18_35.2: <bound method> = bound_method %.loc18_35.1, constants.%T.as.Destroy.impl.Op.466
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc18_35.6: <bound method> = bound_method %.loc18_35.1, %T.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc18_35.3: %ptr.511 = addr_of %.loc18_35.1
// CHECK:STDOUT: %T.as.Destroy.impl.Op.call.loc18_35.2: init %empty_tuple.type = call %bound_method.loc18_35.6(%addr.loc18_35.3)
// CHECK:STDOUT: %T.as.Destroy.impl.Op.bound.loc18_35.3: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.ea3
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc18_35.7: <bound method> = bound_method %var, %T.as.Destroy.impl.Op.specific_fn.3
// CHECK:STDOUT: %addr.loc18_35.4: %ptr.843 = addr_of %var
// CHECK:STDOUT: %T.as.Destroy.impl.Op.call.loc18_35.3: init %empty_tuple.type = call %bound_method.loc18_35.7(%addr.loc18_35.4)
// CHECK:STDOUT: %T.as.Destroy.impl.Op.bound.loc18_18: <bound method> = bound_method %.loc18_18.2, constants.%T.as.Destroy.impl.Op.90d
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc18_18: <bound method> = bound_method %.loc18_18.2, %T.as.Destroy.impl.Op.specific_fn.4
// CHECK:STDOUT: %addr.loc18_18: %ptr.41d = addr_of %.loc18_18.2
// CHECK:STDOUT: %T.as.Destroy.impl.Op.call.loc18_18: init %empty_tuple.type = call %bound_method.loc18_18(%addr.loc18_18)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
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