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carbon-lang/toolchain/check/testdata/impl/fail_call_invalid.carbon
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josh11bJosh LGeoff Romer
 a69c2630f9 Replace InterfaceType with FacetType (#4499) 
This does a few things:
* Replaces the single `TypeId` in the `FacetTypeInfo` struct with a
vector of `InterfaceId`, `SpecificId` pairs (sorted in id order)
representing the set of interface requirements of the facet type. This
will later be used to support facet types with multiple interface
requirements (as in `I & J` or `I where .Self impls J`).
* Replace `InterfaceType` instructions (used as the type of an
`InterfaceDecl` instruction) with `FacetType` instructions (introduced
in #4460) with a (newly introduced) `FacetTypeFromInterface()` function.
* Replace code that consumed `InterfaceType` values with code that
consumed `FaceType` values. I've generally left the assumption in the
code that it is dealing with a single interface, using the (newly
introduced) `FacetTypeInfo::TryAsSingleInterface`, and producing an
error otherwise. There isn't yet support for the `&` operator or `where
.Self impls`, so this is generally a good assumption for now, except you
can get a facet type with no associated interfaces from a `type
where`... expression. In some cases, the facet type value is pulled from
the evaluation of an `InterfaceDecl` instruction, where the single
interface assumption will hold permanently.
* Some related cleans up: nicer stringification and formatting of facet
types, suppression of some errors when there already was an error.

There is still a lot left to do, including:
* Type `type` should be a facet type with a reserved id, replacing the
built-in instruction.
* Code using `TryAsSingleInterface` should generally be upgraded to
handle more than (or less than) one interface. Name lookup should be
particularly exciting.
* Operator `&` should be defined on facet types, unioning their
interface and other requirements.
* Requirements from a `where` clause don't do anything yet.
* Impls and impl lookup need to resolve facet types, and do things like
determine if all the associated constants are given values.

---------

Co-authored-by: Josh L <josh11b@users.noreply.github.com>
Co-authored-by: Geoff Romer <gromer@google.com>
2024-11-11 18:01:50 +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/impl/fail_call_invalid.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/fail_call_invalid.carbon
interface Simple {
fn G[self: Self]();
}
impl i32 as Simple {
// CHECK:STDERR: fail_call_invalid.carbon:[[@LINE+3]]:14: error: name `Undeclared` not found [NameNotFound]
// CHECK:STDERR: fn G[self: Undeclared]();
// CHECK:STDERR: ^~~~~~~~~~
fn G[self: Undeclared]();
}
fn InstanceCall(n: i32) {
n.(Simple.G)();
}
// CHECK:STDOUT: --- fail_call_invalid.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Simple.type: type = facet_type <@Simple> [template]
// CHECK:STDOUT: %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %G.type.1: type = fn_type @G.1 [template]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [template]
// CHECK:STDOUT: %G.1: %G.type.1 = struct_value () [template]
// CHECK:STDOUT: %.1: type = assoc_entity_type %Simple.type, %G.type.1 [template]
// CHECK:STDOUT: %.2: %.1 = assoc_entity element0, @Simple.%G.decl [template]
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %G.type.2: type = fn_type @G.2 [template]
// CHECK:STDOUT: %G.2: %G.type.2 = struct_value () [template]
// CHECK:STDOUT: %InstanceCall.type: type = fn_type @InstanceCall [template]
// CHECK:STDOUT: %InstanceCall: %InstanceCall.type = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref: %Int32.type = import_ref Core//prelude/types, inst+15, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Simple = %Simple.decl
// CHECK:STDOUT: .InstanceCall = %InstanceCall.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Simple.decl: type = interface_decl @Simple [template = constants.%Simple.type] {} {}
// CHECK:STDOUT: impl_decl @impl [template] {} {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc15_6.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc15_6.2: type = converted %int.make_type_32, %.loc15_6.1 [template = i32]
// CHECK:STDOUT: %Simple.ref: type = name_ref Simple, file.%Simple.decl [template = constants.%Simple.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %InstanceCall.decl: %InstanceCall.type = fn_decl @InstanceCall [template = constants.%InstanceCall] {
// CHECK:STDOUT: %n.patt: i32 = binding_pattern n
// CHECK:STDOUT: %n.param_patt: i32 = value_param_pattern %n.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc22_20.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc22_20.2: type = converted %int.make_type_32, %.loc22_20.1 [template = i32]
// CHECK:STDOUT: %n.param: i32 = value_param runtime_param0
// CHECK:STDOUT: %n: i32 = bind_name n, %n.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Simple {
// CHECK:STDOUT: %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %G.decl: %G.type.1 = fn_decl @G.1 [template = constants.%G.1] {
// CHECK:STDOUT: %self.patt: @G.1.%Self (%Self) = binding_pattern self
// CHECK:STDOUT: %self.param_patt: @G.1.%Self (%Self) = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref: %Simple.type = name_ref Self, @Simple.%Self [symbolic = %Self (constants.%Self)]
// CHECK:STDOUT: %.loc12_14.1: type = facet_type_access %Self.ref [symbolic = %Self (constants.%Self)]
// CHECK:STDOUT: %.loc12_14.2: type = converted %Self.ref, %.loc12_14.1 [symbolic = %Self (constants.%Self)]
// CHECK:STDOUT: %self.param: @G.1.%Self (%Self) = value_param runtime_param0
// CHECK:STDOUT: %self: @G.1.%Self (%Self) = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc12: %.1 = assoc_entity element0, %G.decl [template = constants.%.2]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .G = %.loc12
// CHECK:STDOUT: witness = (%G.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl: %.loc15_6.2 as %Simple.ref {
// CHECK:STDOUT: %G.decl: %G.type.2 = fn_decl @G.2 [template = constants.%G.2] {
// CHECK:STDOUT: %self.patt: <error> = binding_pattern self
// CHECK:STDOUT: %self.param_patt: <error> = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Undeclared.ref: <error> = name_ref Undeclared, <error> [template = <error>]
// CHECK:STDOUT: %self.param: <error> = value_param runtime_param0
// CHECK:STDOUT: %self: <error> = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc15_20: <witness> = interface_witness (<error>) [template = <error>]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: witness = %.loc15_20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @G.1(@Simple.%Self: %Simple.type) {
// CHECK:STDOUT: %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn[%self.param_patt: @G.1.%Self (%Self)]();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G.2[%self.param_patt: <error>]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @InstanceCall(%n.param_patt: i32) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %n.ref: i32 = name_ref n, %n
// CHECK:STDOUT: %Simple.ref: type = name_ref Simple, file.%Simple.decl [template = constants.%Simple.type]
// CHECK:STDOUT: %G.ref: %.1 = name_ref G, @Simple.%.loc12 [template = constants.%.2]
// CHECK:STDOUT: %.loc23_4.1: %G.type.1 = interface_witness_access <error>, element0 [template = <error>]
// CHECK:STDOUT: %.loc23_4.2: <bound method> = bound_method %n.ref, %.loc23_4.1
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G.1(constants.%Self) {
// CHECK:STDOUT: %Self => constants.%Self
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G.1(i32) {
// CHECK:STDOUT: %Self => i32
// CHECK:STDOUT: }
// CHECK:STDOUT:
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