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76ed3c73cbc3f3251ebddad522b2737c93fff7cc
carbon-lang/toolchain/check/testdata/impl/compound.carbon
T
Jon Ross-PerkinsandRichard Smith 76ed3c73cb Promote FunctionType to a standard instruction. (#3931) 
This removes the builtin FunctionType, replacing it with a FunctionType
instruction. The constant for a FunctionDecl is now a StructValue with
type of FunctionType.

Note this means a function declaration produces _both_ a type, and a
value of the type. This has some consequences in terms of circularity,
and makes the importing of function declarations a little more complex.

It'll get particularly peculiar for imports because of the behavior of
the reference, but that's a known issue due to other things such as
`alias`. The impact will hopefully be contained to
ResolvePrevInstForMerge (and ImportRefs).

To note a small formatting change in diagnostics:

```
-  // CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated <function> in Interface>` is not callable.
+  // CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated F in Interface>` is not callable.

-  // CHECK:STDERR: fail_todo_facet_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated <function> in Interface>` is not callable.
+  // CHECK:STDERR: fail_todo_facet_lookup.carbon:[[@LINE+4]]:3: ERROR: Value of type `<associated F in Interface>` is not callable.
```

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-05-03 15:18:04 +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
interface Simple {
fn F();
fn G[self: Self]();
}
impl i32 as Simple {
fn F();
fn G[self: i32]();
}
fn NonInstanceCall(n: i32) {
n.(Simple.F)();
}
fn InstanceCall(n: i32) {
n.(Simple.G)();
}
fn NonInstanceCallIndirect(p: i32*) {
p->(Simple.F)();
}
fn InstanceCallIndirect(p: i32*) {
p->(Simple.G)();
}
// CHECK:STDOUT: --- compound.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.1: type = interface_type @Simple [template]
// CHECK:STDOUT: %Self: Simple = bind_symbolic_name Self 0 [symbolic]
// CHECK:STDOUT: %F.1: type = fn_type @F.1 [template]
// CHECK:STDOUT: %.2: type = tuple_type () [template]
// CHECK:STDOUT: %struct.1: F = struct_value () [template]
// CHECK:STDOUT: %.3: type = assoc_entity_type @Simple, F [template]
// CHECK:STDOUT: %.4: <associated F in Simple> = assoc_entity element0, @Simple.%F.decl [template]
// CHECK:STDOUT: %G.1: type = fn_type @G.1 [template]
// CHECK:STDOUT: %struct.2: G = struct_value () [template]
// CHECK:STDOUT: %.5: type = assoc_entity_type @Simple, G [template]
// CHECK:STDOUT: %.6: <associated G in Simple> = assoc_entity element1, @Simple.%G.decl [template]
// CHECK:STDOUT: %F.2: type = fn_type @F.2 [template]
// CHECK:STDOUT: %struct.3: F = struct_value () [template]
// CHECK:STDOUT: %G.2: type = fn_type @G.2 [template]
// CHECK:STDOUT: %struct.4: G = struct_value () [template]
// CHECK:STDOUT: %.7: <witness> = interface_witness (%struct.3, %struct.4) [template]
// CHECK:STDOUT: %NonInstanceCall: type = fn_type @NonInstanceCall [template]
// CHECK:STDOUT: %struct.5: NonInstanceCall = struct_value () [template]
// CHECK:STDOUT: %InstanceCall: type = fn_type @InstanceCall [template]
// CHECK:STDOUT: %struct.6: InstanceCall = struct_value () [template]
// CHECK:STDOUT: %.8: type = ptr_type i32 [template]
// CHECK:STDOUT: %NonInstanceCallIndirect: type = fn_type @NonInstanceCallIndirect [template]
// CHECK:STDOUT: %struct.7: NonInstanceCallIndirect = struct_value () [template]
// CHECK:STDOUT: %InstanceCallIndirect: type = fn_type @InstanceCallIndirect [template]
// CHECK:STDOUT: %struct.8: InstanceCallIndirect = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .Simple = %Simple.decl
// CHECK:STDOUT: .NonInstanceCall = %NonInstanceCall.decl
// CHECK:STDOUT: .InstanceCall = %InstanceCall.decl
// CHECK:STDOUT: .NonInstanceCallIndirect = %NonInstanceCallIndirect.decl
// CHECK:STDOUT: .InstanceCallIndirect = %InstanceCallIndirect.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core: <namespace> = namespace [template] {}
// CHECK:STDOUT: %Simple.decl: type = interface_decl @Simple [template = constants.%.1] {}
// CHECK:STDOUT: impl_decl @impl {
// CHECK:STDOUT: %Simple.ref: type = name_ref Simple, %Simple.decl [template = constants.%.1]
// CHECK:STDOUT: }
// CHECK:STDOUT: %NonInstanceCall.decl: NonInstanceCall = fn_decl @NonInstanceCall [template = constants.%struct.5] {
// CHECK:STDOUT: %n.loc17_20.1: i32 = param n
// CHECK:STDOUT: @NonInstanceCall.%n: i32 = bind_name n, %n.loc17_20.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %InstanceCall.decl: InstanceCall = fn_decl @InstanceCall [template = constants.%struct.6] {
// CHECK:STDOUT: %n.loc21_17.1: i32 = param n
// CHECK:STDOUT: @InstanceCall.%n: i32 = bind_name n, %n.loc21_17.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %NonInstanceCallIndirect.decl: NonInstanceCallIndirect = fn_decl @NonInstanceCallIndirect [template = constants.%struct.7] {
// CHECK:STDOUT: %.loc25: type = ptr_type i32 [template = constants.%.8]
// CHECK:STDOUT: %p.loc25_28.1: i32* = param p
// CHECK:STDOUT: @NonInstanceCallIndirect.%p: i32* = bind_name p, %p.loc25_28.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %InstanceCallIndirect.decl: InstanceCallIndirect = fn_decl @InstanceCallIndirect [template = constants.%struct.8] {
// CHECK:STDOUT: %.loc29: type = ptr_type i32 [template = constants.%.8]
// CHECK:STDOUT: %p.loc29_25.1: i32* = param p
// CHECK:STDOUT: @InstanceCallIndirect.%p: i32* = bind_name p, %p.loc29_25.1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Simple {
// CHECK:STDOUT: %Self: Simple = bind_symbolic_name Self 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %F.decl: F = fn_decl @F.1 [template = constants.%struct.1] {}
// CHECK:STDOUT: %.loc8: <associated F in Simple> = assoc_entity element0, %F.decl [template = constants.%.4]
// CHECK:STDOUT: %G.decl: G = fn_decl @G.1 [template = constants.%struct.2] {
// CHECK:STDOUT: %Self.ref: Simple = name_ref Self, %Self [symbolic = constants.%Self]
// CHECK:STDOUT: %.loc9_14.1: type = facet_type_access %Self.ref [symbolic = constants.%Self]
// CHECK:STDOUT: %.loc9_14.2: type = converted %Self.ref, %.loc9_14.1 [symbolic = constants.%Self]
// CHECK:STDOUT: %self.loc9_8.1: Self = param self
// CHECK:STDOUT: %self.loc9_8.2: Self = bind_name self, %self.loc9_8.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc9_21: <associated G in Simple> = assoc_entity element1, %G.decl [template = constants.%.6]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .F = %.loc8
// CHECK:STDOUT: .G = %.loc9_21
// CHECK:STDOUT: witness = (%F.decl, %G.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl: i32 as Simple {
// CHECK:STDOUT: %F.decl: F = fn_decl @F.2 [template = constants.%struct.3] {}
// CHECK:STDOUT: %G.decl: G = fn_decl @G.2 [template = constants.%struct.4] {
// CHECK:STDOUT: %self.loc14_8.1: i32 = param self
// CHECK:STDOUT: %self.loc14_8.2: i32 = bind_name self, %self.loc14_8.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %.1: <witness> = interface_witness (%F.decl, %G.decl) [template = constants.%.7]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: witness = %.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.1();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G.1[@Simple.%self.loc9_8.2: Self]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G.2[@impl.%self.loc14_8.2: i32]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @NonInstanceCall(%n: 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.%.1]
// CHECK:STDOUT: %F.ref: <associated F in Simple> = name_ref F, @Simple.%.loc8 [template = constants.%.4]
// CHECK:STDOUT: %.1: F = interface_witness_access @impl.%.1, element0 [template = constants.%struct.3]
// CHECK:STDOUT: %F.call: init () = call %.1()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @InstanceCall(%n: 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.%.1]
// CHECK:STDOUT: %G.ref: <associated G in Simple> = name_ref G, @Simple.%.loc9_21 [template = constants.%.6]
// CHECK:STDOUT: %.1: G = interface_witness_access @impl.%.1, element1 [template = constants.%struct.4]
// CHECK:STDOUT: %.loc22: <bound method> = bound_method %n.ref, %.1
// CHECK:STDOUT: %G.call: init () = call %.loc22(%n.ref)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @NonInstanceCallIndirect(%p: i32*) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %p.ref: i32* = name_ref p, %p
// CHECK:STDOUT: %Simple.ref: type = name_ref Simple, file.%Simple.decl [template = constants.%.1]
// CHECK:STDOUT: %F.ref: <associated F in Simple> = name_ref F, @Simple.%.loc8 [template = constants.%.4]
// CHECK:STDOUT: %.loc26: ref i32 = deref %p.ref
// CHECK:STDOUT: %.1: F = interface_witness_access @impl.%.1, element0 [template = constants.%struct.3]
// CHECK:STDOUT: %F.call: init () = call %.1()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @InstanceCallIndirect(%p: i32*) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %p.ref: i32* = name_ref p, %p
// CHECK:STDOUT: %Simple.ref: type = name_ref Simple, file.%Simple.decl [template = constants.%.1]
// CHECK:STDOUT: %G.ref: <associated G in Simple> = name_ref G, @Simple.%.loc9_21 [template = constants.%.6]
// CHECK:STDOUT: %.loc30_4.1: ref i32 = deref %p.ref
// CHECK:STDOUT: %.1: G = interface_witness_access @impl.%.1, element1 [template = constants.%struct.4]
// CHECK:STDOUT: %.loc30_4.2: <bound method> = bound_method %.loc30_4.1, %.1
// CHECK:STDOUT: %.loc30_4.3: i32 = bind_value %.loc30_4.1
// CHECK:STDOUT: %G.call: init () = call %.loc30_4.2(%.loc30_4.3)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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