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carbon-lang/toolchain/check/testdata/class/partial.carbon
T
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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/partial.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/partial.carbon
// --- base.carbon
library "[[@TEST_NAME]]";
base class C { }
//@dump-sem-ir-begin
fn A(p: partial C);
//@dump-sem-ir-end
// --- abstract.carbon
library "[[@TEST_NAME]]";
abstract class C { }
//@dump-sem-ir-begin
fn A(p: partial C);
//@dump-sem-ir-end
// --- fail_partial_nondynamic.carbon
library "[[@TEST_NAME]]";
class C { }
//@dump-sem-ir-begin
// CHECK:STDERR: fail_partial_nondynamic.carbon:[[@LINE+4]]:9: error: `partial` applied to final type `C` [PartialOnFinal]
// CHECK:STDERR: fn G(p: partial C);
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR:
fn G(p: partial C);
//@dump-sem-ir-end
// --- fail_partial_final.carbon
library "[[@TEST_NAME]]";
base class Base { }
class Derived {
extend base: Base;
}
//@dump-sem-ir-begin
// CHECK:STDERR: fail_partial_final.carbon:[[@LINE+4]]:9: error: `partial` applied to final type `Derived` [PartialOnFinal]
// CHECK:STDERR: fn G(p: partial Derived);
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR:
fn G(p: partial Derived);
//@dump-sem-ir-end
// --- fail_partial_decl.carbon
library "[[@TEST_NAME]]";
class C;
// TODO: This diagnostic could be more specific - the type might be non-final,
// but since we only have a declaration, we don't know.
//@dump-sem-ir-begin
// applied to final type `C` [PartialOnFinal] CHECK:STDERR: fn G(p: partial C);
// CHECK:STDERR: fail_partial_decl.carbon:[[@LINE+4]]:9: error: `partial` applied to final type `C` [PartialOnFinal]
// CHECK:STDERR: fn G(p: partial C);
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR:
fn G(p: partial C);
//@dump-sem-ir-end
// --- fail_partial_tuple.carbon
library "[[@TEST_NAME]]";
class C;
//@dump-sem-ir-begin
// CHECK:STDERR: fail_partial_tuple.carbon:[[@LINE+4]]:9: error: `partial` applied to final type `(C, C)` [PartialOnFinal]
// CHECK:STDERR: fn G(p: partial (C, C));
// CHECK:STDERR: ^~~~~~~~~~~~~~
// CHECK:STDERR:
fn G(p: partial (C, C));
//@dump-sem-ir-end
// --- fail_partial_struct.carbon
library "[[@TEST_NAME]]";
class C;
//@dump-sem-ir-begin
// CHECK:STDERR: fail_partial_struct.carbon:[[@LINE+4]]:9: error: `partial` applied to final type `{.x: C}` [PartialOnFinal]
// CHECK:STDERR: fn G(p: partial {.x: C});
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR:
fn G(p: partial {.x: C});
//@dump-sem-ir-end
// --- fail_duplicate.carbon
library "[[@TEST_NAME]]";
base class C { }
//@dump-sem-ir-begin
// CHECK:STDERR: fail_duplicate.carbon:[[@LINE+4]]:9: error: `partial` applied to final type `partial C` [PartialOnFinal]
// CHECK:STDERR: fn F(p: partial (partial C));
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
fn F(p: partial (partial C));
//@dump-sem-ir-end
// --- fail_convert_to_nonpartial.carbon
library "[[@TEST_NAME]]";
base class C { }
fn G(p: partial C*) -> C* {
// CHECK:STDERR: fail_convert_to_nonpartial.carbon:[[@LINE+7]]:3: error: cannot implicitly convert expression of type `partial C*` to `C*` [ConversionFailure]
// CHECK:STDERR: return p;
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR: fail_convert_to_nonpartial.carbon:[[@LINE+4]]:3: note: type `partial C*` does not implement interface `Core.ImplicitAs(C*)` [MissingImplInMemberAccessNote]
// CHECK:STDERR: return p;
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR:
return p;
}
// --- fail_derive_from_partial.carbon
library "[[@TEST_NAME]]";
base class C { }
class Derived {
// CHECK:STDERR: fail_derive_from_partial.carbon:[[@LINE+4]]:16: error: deriving from final type `partial C`; base type must be an `abstract` or `base` class [BaseIsFinal]
// CHECK:STDERR: extend base: partial C;
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR:
extend base: partial C;
}
// --- fail_todo_partial_template_dependent.carbon
library "[[@TEST_NAME]]";
// TODO: This should be accepted because `T` might be final once we know what it
// is.
// CHECK:STDERR: fail_todo_partial_template_dependent.carbon:[[@LINE+4]]:28: error: `partial` applied to final type `T` [PartialOnFinal]
// CHECK:STDERR: fn G[template T:! type](p: partial T*);
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR:
fn G[template T:! type](p: partial T*);
// --- fail_partial_generic.carbon
library "[[@TEST_NAME]]";
// TODO: Maybe rephrase this to use some common/generic phrasing to refer to the
// generic type and its requirements, as distinct from the concrete type that
// might be used here in any specific.
// CHECK:STDERR: fail_partial_generic.carbon:[[@LINE+4]]:19: error: `partial` applied to final type `T` [PartialOnFinal]
// CHECK:STDERR: fn F[T:! type](p: partial T*);
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR:
fn F[T:! type](p: partial T*);
// CHECK:STDOUT: --- base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %.43f: type = partial_type %C [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.43f [concrete]
// CHECK:STDOUT: %A.type: type = fn_type @A [concrete]
// CHECK:STDOUT: %A: %A.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.43f = value_param call_param0
// CHECK:STDOUT: %.loc6_9.1: type = splice_block %.loc6_9.2 [concrete = constants.%.43f] {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %.loc6_9.2: type = partial_type %C.ref [concrete = constants.%.43f]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.43f = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @A(%p.param: %.43f);
// CHECK:STDOUT:
// CHECK:STDOUT: --- abstract.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %.43f: type = partial_type %C [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.43f [concrete]
// CHECK:STDOUT: %A.type: type = fn_type @A [concrete]
// CHECK:STDOUT: %A: %A.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.43f = value_param call_param0
// CHECK:STDOUT: %.loc6_9.1: type = splice_block %.loc6_9.2 [concrete = constants.%.43f] {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %.loc6_9.2: type = partial_type %C.ref [concrete = constants.%.43f]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.43f = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @A(%p.param: %.43f);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_partial_nondynamic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %.43f: type = partial_type %C [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.43f [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.43f = value_param call_param0
// CHECK:STDOUT: %.loc10_9.1: type = splice_block %.loc10_9.2 [concrete = constants.%.43f] {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %.loc10_9.2: type = partial_type %C.ref [concrete = constants.%.43f]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.43f = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%p.param: %.43f);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_partial_final.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT: %.604: type = partial_type %Derived [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.604 [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.604 = value_param call_param0
// CHECK:STDOUT: %.loc13_9.1: type = splice_block %.loc13_9.2 [concrete = constants.%.604] {
// CHECK:STDOUT: %Derived.ref: type = name_ref Derived, file.%Derived.decl [concrete = constants.%Derived]
// CHECK:STDOUT: %.loc13_9.2: type = partial_type %Derived.ref [concrete = constants.%.604]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.604 = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%p.param: %.604);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_partial_decl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %.43f: type = partial_type %C [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.43f [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.43f = value_param call_param0
// CHECK:STDOUT: %.loc13_9.1: type = splice_block %.loc13_9.2 [concrete = constants.%.43f] {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %.loc13_9.2: type = partial_type %C.ref [concrete = constants.%.43f]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.43f = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%p.param: %.43f);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_partial_tuple.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %tuple.type.24b: type = tuple_type (type, type) [concrete]
// CHECK:STDOUT: %tuple.type.56b: type = tuple_type (%C, %C) [concrete]
// CHECK:STDOUT: %.62c: type = partial_type %tuple.type.56b [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.62c [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.62c = value_param call_param0
// CHECK:STDOUT: %.loc10_9.1: type = splice_block %.loc10_9.3 [concrete = constants.%.62c] {
// CHECK:STDOUT: %C.ref.loc10_18: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %C.ref.loc10_21: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %.loc10_22: %tuple.type.24b = tuple_literal (%C.ref.loc10_18, %C.ref.loc10_21)
// CHECK:STDOUT: %.loc10_9.2: type = converted %.loc10_22, constants.%tuple.type.56b [concrete = constants.%tuple.type.56b]
// CHECK:STDOUT: %.loc10_9.3: type = partial_type %.loc10_9.2 [concrete = constants.%.62c]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.62c = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%p.param: %.62c);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_partial_struct.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %struct_type.x: type = struct_type {.x: %C} [concrete]
// CHECK:STDOUT: %.1ed: type = partial_type %struct_type.x [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.1ed [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.1ed = value_param call_param0
// CHECK:STDOUT: %.loc10_9.1: type = splice_block %.loc10_9.2 [concrete = constants.%.1ed] {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %struct_type.x: type = struct_type {.x: %C} [concrete = constants.%struct_type.x]
// CHECK:STDOUT: %.loc10_9.2: type = partial_type %struct_type.x [concrete = constants.%.1ed]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.1ed = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%p.param: %.1ed);
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_duplicate.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %.43f: type = partial_type %C [concrete]
// CHECK:STDOUT: %.a34: type = partial_type %.43f [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %.a34 [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT: %p.patt: %pattern_type = value_binding_pattern p [concrete]
// CHECK:STDOUT: %p.param_patt: %pattern_type = value_param_pattern %p.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %p.param: %.a34 = value_param call_param0
// CHECK:STDOUT: %.loc10_9.1: type = splice_block %.loc10_9.2 [concrete = constants.%.a34] {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %.loc10_18: type = partial_type %C.ref [concrete = constants.%.43f]
// CHECK:STDOUT: %.loc10_9.2: type = partial_type %.loc10_18 [concrete = constants.%.a34]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: %.a34 = value_binding p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%p.param: %.a34);
// CHECK:STDOUT:
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