mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-03 20:25:51 +01:00
Dana JansensandRichard Smith
0e8d354567
This allows us to import the table for a given impl only once, while we can import many ImplWitness instructions with different specifics for a generic impl. For example in convert_facet_value_to_narrowed_facet_type.carbon we see that a single witness table is imported for the BitAnd interface, with multiple witnesses (for different specifics) imported and sharing the same table. The ImplWitnessTable now contains a back-link to the Impl the witness is for, allowing inst namer to name that interface in the textual semir, and allowing the interface to be found when debugging from a witness. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
137 lines
7.6 KiB
Plaintext
137 lines
7.6 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/namespace/alias.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/namespace/alias.carbon
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namespace NS;
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alias ns = NS;
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fn NS.A() -> i32 { return 0; }
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fn B() -> i32 { return ns.A(); }
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alias C = NS.A;
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fn D() -> i32 { return C(); }
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// CHECK:STDOUT: --- alias.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %A.type: type = fn_type @A [concrete]
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// CHECK:STDOUT: %A: %A.type = struct_value () [concrete]
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// CHECK:STDOUT: %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
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// CHECK:STDOUT: %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
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// CHECK:STDOUT: %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
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// CHECK:STDOUT: %ImplicitAs.impl_witness_table.a2f = impl_witness_table (imports.%Core.import_ref.a5b), @impl.4f9 [concrete]
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// CHECK:STDOUT: %ImplicitAs.impl_witness.c75: <witness> = impl_witness %ImplicitAs.impl_witness_table.a2f, @impl.4f9(%int_32) [concrete]
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// CHECK:STDOUT: %Convert.type.035: type = fn_type @Convert.2, @impl.4f9(%int_32) [concrete]
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// CHECK:STDOUT: %Convert.956: %Convert.type.035 = struct_value () [concrete]
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// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
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// CHECK:STDOUT: %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
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// CHECK:STDOUT: %Convert.bound: <bound method> = bound_method %int_0.5c6, %Convert.956 [concrete]
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// CHECK:STDOUT: %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
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// CHECK:STDOUT: %bound_method: <bound method> = bound_method %int_0.5c6, %Convert.specific_fn [concrete]
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// CHECK:STDOUT: %int_0.6a9: %i32 = int_value 0 [concrete]
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// CHECK:STDOUT: %B.type: type = fn_type @B [concrete]
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// CHECK:STDOUT: %B: %B.type = struct_value () [concrete]
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// CHECK:STDOUT: %D.type: type = fn_type @D [concrete]
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// CHECK:STDOUT: %D: %D.type = struct_value () [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
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// CHECK:STDOUT: .Int = %Core.Int
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// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
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// CHECK:STDOUT: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .Core = imports.%Core
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// CHECK:STDOUT: .NS = %NS
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// CHECK:STDOUT: .ns = %ns
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// CHECK:STDOUT: .B = %B.decl
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// CHECK:STDOUT: .C = %C
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// CHECK:STDOUT: .D = %D.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %NS: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .A = %A.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %NS.ref.loc13: <namespace> = name_ref NS, %NS [concrete = %NS]
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// CHECK:STDOUT: %ns: <namespace> = bind_alias ns, %NS [concrete = %NS]
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// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
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// CHECK:STDOUT: %return.patt: %i32 = return_slot_pattern
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// CHECK:STDOUT: %return.param_patt: %i32 = out_param_pattern %return.patt, call_param0
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
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// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %B.decl: %B.type = fn_decl @B [concrete = constants.%B] {
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// CHECK:STDOUT: %return.patt: %i32 = return_slot_pattern
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// CHECK:STDOUT: %return.param_patt: %i32 = out_param_pattern %return.patt, call_param0
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
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// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %NS.ref.loc19: <namespace> = name_ref NS, %NS [concrete = %NS]
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// CHECK:STDOUT: %A.ref: %A.type = name_ref A, %A.decl [concrete = constants.%A]
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// CHECK:STDOUT: %C: %A.type = bind_alias C, %A.decl [concrete = constants.%A]
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// CHECK:STDOUT: %D.decl: %D.type = fn_decl @D [concrete = constants.%D] {
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// CHECK:STDOUT: %return.patt: %i32 = return_slot_pattern
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// CHECK:STDOUT: %return.param_patt: %i32 = out_param_pattern %return.patt, call_param0
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// CHECK:STDOUT: } {
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param0
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// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @A() -> %i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
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// CHECK:STDOUT: %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
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// CHECK:STDOUT: %bound_method.loc15_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Convert.bound]
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// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
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// CHECK:STDOUT: %bound_method.loc15_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
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// CHECK:STDOUT: %int.convert_checked: init %i32 = call %bound_method.loc15_28.2(%int_0) [concrete = constants.%int_0.6a9]
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// CHECK:STDOUT: %.loc15_28.1: %i32 = value_of_initializer %int.convert_checked [concrete = constants.%int_0.6a9]
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// CHECK:STDOUT: %.loc15_28.2: %i32 = converted %int_0, %.loc15_28.1 [concrete = constants.%int_0.6a9]
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// CHECK:STDOUT: return %.loc15_28.2
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @B() -> %i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %ns.ref: <namespace> = name_ref ns, file.%ns [concrete = file.%NS]
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// CHECK:STDOUT: %A.ref: %A.type = name_ref A, file.%A.decl [concrete = constants.%A]
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// CHECK:STDOUT: %A.call: init %i32 = call %A.ref()
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// CHECK:STDOUT: %.loc17_30.1: %i32 = value_of_initializer %A.call
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// CHECK:STDOUT: %.loc17_30.2: %i32 = converted %A.call, %.loc17_30.1
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// CHECK:STDOUT: return %.loc17_30.2
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @D() -> %i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %C.ref: %A.type = name_ref C, file.%C [concrete = constants.%A]
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// CHECK:STDOUT: %A.call: init %i32 = call %C.ref()
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// CHECK:STDOUT: %.loc21_27.1: %i32 = value_of_initializer %A.call
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// CHECK:STDOUT: %.loc21_27.2: %i32 = converted %A.call, %.loc21_27.1
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// CHECK:STDOUT: return %.loc21_27.2
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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