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carbon-lang/toolchain/check/testdata/impl/fail_impl_bad_interface.carbon
T
Geoff RomerandJon Ross-Perkins dc32aa2690 Initial support for binding patterns in SemIR (#4221) 
Introduces the `BindingPattern` and `SymbolicBindingPattern` insts, and
a separate stack of pattern blocks that they are emitted into. The
intent is to generate the corresponding pattern-matching insts (like
`BindName`) from them in a separate pass, but that is deferred to future
PRs.

See
[here](https://docs.google.com/document/d/1U_vQH17V893J9aF1LJXUnFYBNSs2MjKl4bJPaWCB2zo/edit?usp=sharing&resourcekey=0-w0xGYZ0An31Kpz-wvzSXwQ)
for the design this is based on, but note that during review we have
chosen to deviate from that design by putting the patterns in separate
blocks, and omitting the "forward references" from a `BindingPattern` to
its corresponding `BindName`. This in turn necessitates having separate
inst kinds for symbolic and non-symbolic binding patterns.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-09-25 19:12:58 +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_impl_bad_interface.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/fail_impl_bad_interface.carbon
// CHECK:STDERR: fail_impl_bad_interface.carbon:[[@LINE+10]]:1: error: semantics TODO: `impl as non-interface`
// CHECK:STDERR: impl i32 as false {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
// CHECK:STDERR: fail_impl_bad_interface.carbon:[[@LINE+6]]:13: error: cannot implicitly convert from `bool` to `type`
// CHECK:STDERR: impl i32 as false {}
// CHECK:STDERR: ^~~~~
// CHECK:STDERR: fail_impl_bad_interface.carbon:[[@LINE+3]]:13: note: type `bool` does not implement interface `ImplicitAs`
// CHECK:STDERR: impl i32 as false {}
// CHECK:STDERR: ^~~~~
impl i32 as false {}
// CHECK:STDOUT: --- fail_impl_bad_interface.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %.2: bool = bool_literal false [template]
// CHECK:STDOUT: %ImplicitAs.type: type = generic_interface_type @ImplicitAs [template]
// CHECK:STDOUT: %ImplicitAs: %ImplicitAs.type = struct_value () [template]
// CHECK:STDOUT: %Dest: type = bind_symbolic_name Dest 0 [symbolic]
// CHECK:STDOUT: %.3: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
// CHECK:STDOUT: %Self.1: @ImplicitAs.%.1 (%.3) = bind_symbolic_name Self 1 [symbolic]
// CHECK:STDOUT: %Self.2: %.3 = bind_symbolic_name Self 1 [symbolic]
// CHECK:STDOUT: %Convert.type.1: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic]
// CHECK:STDOUT: %Convert.1: %Convert.type.1 = struct_value () [symbolic]
// CHECK:STDOUT: %.4: type = assoc_entity_type %.3, %Convert.type.1 [symbolic]
// CHECK:STDOUT: %.5: %.4 = assoc_entity element0, imports.%import_ref.6 [symbolic]
// CHECK:STDOUT: %.6: type = interface_type @ImplicitAs, @ImplicitAs(type) [template]
// CHECK:STDOUT: %Convert.type.2: type = fn_type @Convert, @ImplicitAs(type) [template]
// CHECK:STDOUT: %Convert.2: %Convert.type.2 = struct_value () [template]
// CHECK:STDOUT: %.7: type = assoc_entity_type %.6, %Convert.type.2 [template]
// CHECK:STDOUT: %.8: %.7 = assoc_entity element0, imports.%import_ref.6 [template]
// CHECK:STDOUT: %.9: %.4 = assoc_entity element0, imports.%import_ref.7 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref.1
// CHECK:STDOUT: .ImplicitAs = %import_ref.2
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/operators
// CHECK:STDOUT: import Core//prelude/types
// CHECK:STDOUT: import Core//prelude/operators/arithmetic
// CHECK:STDOUT: import Core//prelude/operators/as
// CHECK:STDOUT: import Core//prelude/operators/bitwise
// CHECK:STDOUT: import Core//prelude/operators/comparison
// CHECK:STDOUT: import Core//prelude/types/bool
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref.1: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: %import_ref.2: %ImplicitAs.type = import_ref Core//prelude/operators/as, inst+40, loaded [template = constants.%ImplicitAs]
// CHECK:STDOUT: %import_ref.3 = import_ref Core//prelude/operators/as, inst+45, unloaded
// CHECK:STDOUT: %import_ref.4: @ImplicitAs.%.2 (%.4) = import_ref Core//prelude/operators/as, inst+63, loaded [symbolic = @ImplicitAs.%.3 (constants.%.9)]
// CHECK:STDOUT: %import_ref.5 = import_ref Core//prelude/operators/as, inst+56, unloaded
// CHECK:STDOUT: %import_ref.6 = import_ref Core//prelude/operators/as, inst+56, unloaded
// CHECK:STDOUT: %import_ref.7 = import_ref Core//prelude/operators/as, inst+56, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %.loc21_13.1: type = interface_type @ImplicitAs, @ImplicitAs(type) [template = constants.%.6]
// CHECK:STDOUT: %.loc21_13.2: %.7 = specific_constant imports.%import_ref.4, @ImplicitAs(type) [template = constants.%.8]
// CHECK:STDOUT: %Convert.ref: %.7 = name_ref Convert, %.loc21_13.2 [template = constants.%.8]
// CHECK:STDOUT: %.loc21_13.3: type = converted @impl.%.loc21_13, <error> [template = <error>]
// CHECK:STDOUT: impl_decl @impl {} {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc21_6.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc21_6.2: type = converted %int.make_type_32, %.loc21_6.1 [template = i32]
// CHECK:STDOUT: %.loc21_13: bool = bool_literal false [template = constants.%.2]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @ImplicitAs(constants.%Dest: type) {
// CHECK:STDOUT: %Dest: type = bind_symbolic_name Dest 0 [symbolic = %Dest (constants.%Dest)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %.1: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %.1 (constants.%.3)]
// CHECK:STDOUT: %Self: %.3 = bind_symbolic_name Self 1 [symbolic = %Self (constants.%Self.2)]
// CHECK:STDOUT: %Convert.type: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
// CHECK:STDOUT: %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
// CHECK:STDOUT: %.2: type = assoc_entity_type @ImplicitAs.%.1 (%.3), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.2 (constants.%.4)]
// CHECK:STDOUT: %.3: @ImplicitAs.%.2 (%.4) = assoc_entity element0, imports.%import_ref.6 [symbolic = %.3 (constants.%.5)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%import_ref.3
// CHECK:STDOUT: .Convert = imports.%import_ref.4
// CHECK:STDOUT: witness = (imports.%import_ref.5)
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl: i32 as <error> {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Convert(constants.%Dest: type, constants.%Self.1: @ImplicitAs.%.1 (%.3)) {
// CHECK:STDOUT: %Dest: type = bind_symbolic_name Dest 0 [symbolic = %Dest (constants.%Dest)]
// CHECK:STDOUT: %.1: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %.1 (constants.%.3)]
// CHECK:STDOUT: %Self: %.3 = bind_symbolic_name Self 1 [symbolic = %Self (constants.%Self.2)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn[%self: @Convert.%Self (%Self.2)]() -> @Convert.%Dest (%Dest);
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ImplicitAs(constants.%Dest) {
// CHECK:STDOUT: %Dest => constants.%Dest
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ImplicitAs(@ImplicitAs.%Dest) {
// CHECK:STDOUT: %Dest => constants.%Dest
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ImplicitAs(@Convert.%Dest) {
// CHECK:STDOUT: %Dest => constants.%Dest
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Convert(constants.%Dest, constants.%Self.1) {
// CHECK:STDOUT: %Dest => constants.%Dest
// CHECK:STDOUT: %.1 => constants.%.3
// CHECK:STDOUT: %Self => constants.%Self.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @ImplicitAs(type) {
// CHECK:STDOUT: %Dest => type
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %.1 => constants.%.6
// CHECK:STDOUT: %Self => constants.%Self.2
// CHECK:STDOUT: %Convert.type => constants.%Convert.type.2
// CHECK:STDOUT: %Convert => constants.%Convert.2
// CHECK:STDOUT: %.2 => constants.%.7
// CHECK:STDOUT: %.3 => constants.%.8
// CHECK:STDOUT: }
// CHECK:STDOUT:
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