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carbon-lang/toolchain/check/testdata/impl/lookup/instance_method.carbon
T
Richard SmithandJon Ross-Perkins efea072be3 Compute specific constant values. (#4128) 
When forming a specific (previously called a generic instance), evaluate
the eval block of the generic to determine the values of any constants
used in that specific. The majority of the work here is updating
eval.cpp so that it can use the results of prior evaluations in the same
block when computing later values.

Include the computed results in the formatted SemIR output.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-07-15 23:59:23 +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/lookup/instance_method.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/lookup/instance_method.carbon
class C;
interface I {
fn F[self: Self]() -> i32;
}
class C {
extend impl as I {
fn F[self: Self]() -> i32;
}
}
fn F(c: C) -> i32 {
return c.F();
}
// CHECK:STDOUT: --- instance_method.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [template]
// CHECK:STDOUT: %.1: type = interface_type @I [template]
// CHECK:STDOUT: %Self: %.1 = bind_symbolic_name Self 0 [symbolic]
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %.2: type = tuple_type () [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %F.type.1: type = fn_type @F.1 [template]
// CHECK:STDOUT: %F.1: %F.type.1 = struct_value () [template]
// CHECK:STDOUT: %.3: type = assoc_entity_type @I, %F.type.1 [template]
// CHECK:STDOUT: %.4: %.3 = assoc_entity element0, @I.%F.decl [template]
// CHECK:STDOUT: %F.type.2: type = fn_type @F.2 [template]
// CHECK:STDOUT: %F.2: %F.type.2 = struct_value () [template]
// CHECK:STDOUT: %.5: <witness> = interface_witness (%F.2) [template]
// CHECK:STDOUT: %.6: type = struct_type {} [template]
// CHECK:STDOUT: %F.type.3: type = fn_type @F.3 [template]
// CHECK:STDOUT: %F.3: %F.type.3 = struct_value () [template]
// CHECK:STDOUT: %.7: type = ptr_type %.6 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %import_ref.1: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: %import_ref.2: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: %import_ref.3: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = %Core
// CHECK:STDOUT: .C = %C.decl.loc11
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Core: <namespace> = namespace %Core.import, [template] {}
// CHECK:STDOUT: %C.decl.loc11: type = class_decl @C [template = constants.%C] {}
// CHECK:STDOUT: %I.decl: type = interface_decl @I [template = constants.%.1] {}
// CHECK:STDOUT: %C.decl.loc17: type = class_decl @C [template = constants.%C] {}
// CHECK:STDOUT: %F.decl: %F.type.3 = fn_decl @F.3 [template = constants.%F.3] {
// CHECK:STDOUT: %C.ref: type = name_ref C, %C.decl.loc11 [template = constants.%C]
// CHECK:STDOUT: %c.loc23_6.1: %C = param c
// CHECK:STDOUT: @F.3.%c: %C = bind_name c, %c.loc23_6.1
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc23_15.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc23_15.2: type = converted %int.make_type_32, %.loc23_15.1 [template = i32]
// CHECK:STDOUT: @F.3.%return: ref i32 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I {
// CHECK:STDOUT: %Self: %.1 = bind_symbolic_name Self 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {
// CHECK:STDOUT: %Self.ref: %.1 = name_ref Self, %Self [symbolic = %Self.ref (constants.%Self)]
// CHECK:STDOUT: %.loc14_14.1: type = facet_type_access %Self.ref [symbolic = %Self.ref (constants.%Self)]
// CHECK:STDOUT: %.loc14_14.2: type = converted %Self.ref, %.loc14_14.1 [symbolic = %Self.ref (constants.%Self)]
// CHECK:STDOUT: %self.loc14_8.1: @I.%Self.ref (%Self) = param self
// CHECK:STDOUT: %self.loc14_8.2: @I.%Self.ref (%Self) = bind_name self, %self.loc14_8.1
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc14_25.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc14_25.2: type = converted %int.make_type_32, %.loc14_25.1 [template = i32]
// CHECK:STDOUT: %return.var: ref i32 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc14_28: %.3 = assoc_entity element0, %F.decl [template = constants.%.4]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .F = %.loc14_28
// CHECK:STDOUT: witness = (%F.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl: %C as %.1 {
// CHECK:STDOUT: %F.decl: %F.type.2 = fn_decl @F.2 [template = constants.%F.2] {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%C [template = constants.%C]
// CHECK:STDOUT: %self.loc19_10.1: %C = param self
// CHECK:STDOUT: %self.loc19_10.2: %C = bind_name self, %self.loc19_10.1
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc19_27.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc19_27.2: type = converted %int.make_type_32, %.loc19_27.1 [template = i32]
// CHECK:STDOUT: %return.var: ref i32 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %.1: <witness> = interface_witness (%F.decl) [template = constants.%.5]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: witness = %.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: impl_decl @impl {
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [template = constants.%.1]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: extend name_scope2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.1[@I.%self.loc14_8.2: @I.%Self.ref (%Self)]() -> i32
// CHECK:STDOUT: generic [@I.%Self: %.1];
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2[@impl.%self.loc19_10.2: %C]() -> i32;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.3(%c: %C) -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %c.ref: %C = name_ref c, %c
// CHECK:STDOUT: %F.ref: %.3 = name_ref F, @I.%.loc14_28 [template = constants.%.4]
// CHECK:STDOUT: %.1: %F.type.1 = interface_witness_access @impl.%.1, element0 [template = constants.%F.2]
// CHECK:STDOUT: %.loc24_11: <bound method> = bound_method %c.ref, %.1
// CHECK:STDOUT: %F.call: init i32 = call %.loc24_11(%c.ref)
// CHECK:STDOUT: %.loc24_15.1: i32 = value_of_initializer %F.call
// CHECK:STDOUT: %.loc24_15.2: i32 = converted %F.call, %.loc24_15.1
// CHECK:STDOUT: return %.loc24_15.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @I.%F.decl(constants.%Self) {
// CHECK:STDOUT: declaration:
// CHECK:STDOUT: @I.%Self.ref => constants.%Self
// CHECK:STDOUT: }
// CHECK:STDOUT:
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