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carbon-lang/toolchain/check/testdata/class/base_method.carbon
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josh11bJosh LRichard Smith
 67f2c9ce26 Add a FacetValue instruction (#4545) 
The new `FacetValue` instruction represents `C as I` for some type `C`
and facet type `I`. It is named `FacetValue` instead of just `Facet` to
parallel the `FacetType` instruction.

This PR uses this instruction represent the facet value `Self` in an
`impl` declaration. This instruction will be used in the future to also
support things like:

* `C as I` where `C` is a class; and
* forming a specific for a generic with a `T:! I` parameter where `T` is
being given a concrete value.

(Here `I` is an interface or other non-`type` facet type.)

Also do some renaming and add some comments to make things a bit more
clear.

* `FacetTypeAccess` -> `FacetAccessType` to clarify this is not access
of a facet type, but access of the type of a facet
* `.facet_id` -> `.facet_value_inst_id` to parallel the `FacetValue`
instruction

`FacetAccessWitness` will be in a future PR.

---------

Co-authored-by: Josh L <josh11b@users.noreply.github.com>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-11-21 22:29:53 +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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/base_method.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/base_method.carbon
base class Base {
var a: i32;
fn F[addr self: Self*]();
}
fn Base.F[addr self: Self*]() {
(*self).a = 1;
}
class Derived {
extend base: Base;
}
fn Call(p: Derived*) {
(*p).F();
}
// CHECK:STDOUT: --- base_method.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Base: type = class_type @Base [template]
// CHECK:STDOUT: %.1: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT: %Int.type: type = fn_type @Int [template]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [template]
// CHECK:STDOUT: %Int: %Int.type = struct_value () [template]
// CHECK:STDOUT: %i32: type = int_type signed, %.1 [template]
// CHECK:STDOUT: %.2: type = unbound_element_type %Base, %i32 [template]
// CHECK:STDOUT: %.3: type = ptr_type %Base [template]
// CHECK:STDOUT: %F.type: type = fn_type @F [template]
// CHECK:STDOUT: %F: %F.type = struct_value () [template]
// CHECK:STDOUT: %.4: type = struct_type {.a: %i32} [template]
// CHECK:STDOUT: %.5: <witness> = complete_type_witness %.4 [template]
// CHECK:STDOUT: %.7: Core.IntLiteral = int_value 1 [template]
// CHECK:STDOUT: %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
// CHECK:STDOUT: %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.1) [template]
// CHECK:STDOUT: %Convert.14: %Convert.type.14 = struct_value () [template]
// CHECK:STDOUT: %.31: <witness> = interface_witness (%Convert.14) [template]
// CHECK:STDOUT: %.32: <bound method> = bound_method %.7, %Convert.14 [template]
// CHECK:STDOUT: %.33: <specific function> = specific_function %.32, @Convert.2(%.1) [template]
// CHECK:STDOUT: %.34: %i32 = int_value 1 [template]
// CHECK:STDOUT: %Derived: type = class_type @Derived [template]
// CHECK:STDOUT: %.35: type = unbound_element_type %Derived, %Base [template]
// CHECK:STDOUT: %.36: type = struct_type {.base: %Base} [template]
// CHECK:STDOUT: %.37: <witness> = complete_type_witness %.36 [template]
// CHECK:STDOUT: %.38: type = ptr_type %Derived [template]
// CHECK:STDOUT: %Call.type: type = fn_type @Call [template]
// CHECK:STDOUT: %Call: %Call.type = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int = %import_ref.1
// CHECK:STDOUT: .ImplicitAs = %import_ref.2
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Base = %Base.decl
// CHECK:STDOUT: .Derived = %Derived.decl
// CHECK:STDOUT: .Call = %Call.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Base.decl: type = class_decl @Base [template = constants.%Base] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {
// CHECK:STDOUT: %self.patt: %.3 = binding_pattern self
// CHECK:STDOUT: %self.param_patt: %.3 = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: %.loc17_11: auto = addr_pattern %self.param_patt
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref.loc17: type = name_ref Self, constants.%Base [template = constants.%Base]
// CHECK:STDOUT: %.loc17_26: type = ptr_type %Base [template = constants.%.3]
// CHECK:STDOUT: %self.param.loc17: %.3 = value_param runtime_param0
// CHECK:STDOUT: %self.loc17: %.3 = bind_name self, %self.param.loc17
// CHECK:STDOUT: }
// CHECK:STDOUT: %Derived.decl: type = class_decl @Derived [template = constants.%Derived] {} {}
// CHECK:STDOUT: %Call.decl: %Call.type = fn_decl @Call [template = constants.%Call] {
// CHECK:STDOUT: %p.patt: %.38 = binding_pattern p
// CHECK:STDOUT: %p.param_patt: %.38 = value_param_pattern %p.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Derived.ref: type = name_ref Derived, file.%Derived.decl [template = constants.%Derived]
// CHECK:STDOUT: %.loc25: type = ptr_type %Derived [template = constants.%.38]
// CHECK:STDOUT: %p.param: %.38 = value_param runtime_param0
// CHECK:STDOUT: %p: %.38 = bind_name p, %p.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Base {
// CHECK:STDOUT: %.loc12_10.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
// CHECK:STDOUT: %int.make_type_signed: init type = call constants.%Int(%.loc12_10.1) [template = constants.%i32]
// CHECK:STDOUT: %.loc12_10.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
// CHECK:STDOUT: %.loc12_10.3: type = converted %int.make_type_signed, %.loc12_10.2 [template = constants.%i32]
// CHECK:STDOUT: %.loc12_8: %.2 = field_decl a, element0 [template]
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {
// CHECK:STDOUT: %self.patt: %.3 = binding_pattern self
// CHECK:STDOUT: %self.param_patt: %.3 = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: %.loc17_11: auto = addr_pattern %self.param_patt
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref.loc14: type = name_ref Self, constants.%Base [template = constants.%Base]
// CHECK:STDOUT: %.loc14: type = ptr_type %Base [template = constants.%.3]
// CHECK:STDOUT: %self.param.loc14: %.3 = value_param runtime_param0
// CHECK:STDOUT: %self.loc14: %.3 = bind_name self, %self.param.loc14
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc15: <witness> = complete_type_witness %.4 [template = constants.%.5]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Base
// CHECK:STDOUT: .a = %.loc12_8
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT: %Base.ref: type = name_ref Base, file.%Base.decl [template = constants.%Base]
// CHECK:STDOUT: %.loc22: %.35 = base_decl %Base, element0 [template]
// CHECK:STDOUT: %.loc23: <witness> = complete_type_witness %.36 [template = constants.%.37]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Derived
// CHECK:STDOUT: .base = %.loc22
// CHECK:STDOUT: extend %Base.ref
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F[addr %self.param_patt: %.3]() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %self.ref: %.3 = name_ref self, %self.loc17
// CHECK:STDOUT: %.loc18_4: ref %Base = deref %self.ref
// CHECK:STDOUT: %a.ref: %.2 = name_ref a, @Base.%.loc12_8 [template = @Base.%.loc12_8]
// CHECK:STDOUT: %.loc18_10: ref %i32 = class_element_access %.loc18_4, element0
// CHECK:STDOUT: %.loc18_15: Core.IntLiteral = int_value 1 [template = constants.%.7]
// CHECK:STDOUT: %.loc18_13.1: %Convert.type.2 = interface_witness_access constants.%.31, element0 [template = constants.%Convert.14]
// CHECK:STDOUT: %.loc18_13.2: <bound method> = bound_method %.loc18_15, %.loc18_13.1 [template = constants.%.32]
// CHECK:STDOUT: %.loc18_13.3: <specific function> = specific_function %.loc18_13.2, @Convert.2(constants.%.1) [template = constants.%.33]
// CHECK:STDOUT: %int.convert_checked: init %i32 = call %.loc18_13.3(%.loc18_15) [template = constants.%.34]
// CHECK:STDOUT: %.loc18_13.4: init %i32 = converted %.loc18_15, %int.convert_checked [template = constants.%.34]
// CHECK:STDOUT: assign %.loc18_10, %.loc18_13.4
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Call(%p.param_patt: %.38) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %p.ref: %.38 = name_ref p, %p
// CHECK:STDOUT: %.loc26_4.1: ref %Derived = deref %p.ref
// CHECK:STDOUT: %F.ref: %F.type = name_ref F, @Base.%F.decl [template = constants.%F]
// CHECK:STDOUT: %.loc26_7: <bound method> = bound_method %.loc26_4.1, %F.ref
// CHECK:STDOUT: %.loc26_4.2: %.38 = addr_of %.loc26_4.1
// CHECK:STDOUT: %.loc26_4.3: ref %Derived = deref %.loc26_4.2
// CHECK:STDOUT: %.loc26_4.4: ref %Base = class_element_access %.loc26_4.3, element0
// CHECK:STDOUT: %.loc26_4.5: %.3 = addr_of %.loc26_4.4
// CHECK:STDOUT: %.loc26_4.6: %.3 = converted %.loc26_4.2, %.loc26_4.5
// CHECK:STDOUT: %F.call: init %empty_tuple.type = call %.loc26_7(%.loc26_4.6)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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