mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 22:02:33 +01:00
Richard Smith
dd7cfdb149
Implement the alias rules from proposal #5389, wherein an alias is permitted so long as the target has a constant value. While that proposal is not yet accepted, this seems like a reasonable basis for further iteration, and will be useful for the examples we're currently pursuing.
101 lines
5.3 KiB
Plaintext
101 lines
5.3 KiB
Plaintext
// 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
|
|
//
|
|
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/destroy.carbon
|
|
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
|
|
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
|
|
//
|
|
// AUTOUPDATE
|
|
// TIP: To test this file alone, run:
|
|
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/function/call/alias.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/call/alias.carbon
|
|
|
|
fn A() -> () { return (); }
|
|
|
|
alias B = A;
|
|
|
|
fn Main() {
|
|
var unused b: () = B();
|
|
}
|
|
|
|
// CHECK:STDOUT: --- alias.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
|
|
// CHECK:STDOUT: %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
|
|
// CHECK:STDOUT: %.262: Core.Form = init_form %empty_tuple.type [concrete]
|
|
// CHECK:STDOUT: %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
|
|
// CHECK:STDOUT: %A.type: type = fn_type @A [concrete]
|
|
// CHECK:STDOUT: %A: %A.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %Main.type: type = fn_type @Main [concrete]
|
|
// CHECK:STDOUT: %Main: %Main.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
|
|
// CHECK:STDOUT: %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
|
|
// CHECK:STDOUT: %Destroy.Op: %Destroy.Op.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: imports {
|
|
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
|
|
// CHECK:STDOUT: .Destroy = %Core.Destroy
|
|
// CHECK:STDOUT: import Core//prelude
|
|
// CHECK:STDOUT: import Core//prelude/...
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: file {
|
|
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
|
|
// CHECK:STDOUT: .Core = imports.%Core
|
|
// CHECK:STDOUT: .A = %A.decl
|
|
// CHECK:STDOUT: .B = %B
|
|
// CHECK:STDOUT: .Main = %Main.decl
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.import = import Core
|
|
// CHECK:STDOUT: %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
|
|
// CHECK:STDOUT: %return.param_patt: %pattern_type.cb1 = out_param_pattern [concrete]
|
|
// CHECK:STDOUT: %return.patt: %pattern_type.cb1 = return_slot_pattern %return.param_patt, %.loc15_12.2 [concrete]
|
|
// CHECK:STDOUT: } {
|
|
// CHECK:STDOUT: %.loc15_12.1: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %.loc15_12.2: type = converted %.loc15_12.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
|
|
// CHECK:STDOUT: %.loc15_12.3: Core.Form = init_form %.loc15_12.2 [concrete = constants.%.262]
|
|
// CHECK:STDOUT: %return.param: ref %empty_tuple.type = out_param call_param0
|
|
// CHECK:STDOUT: %return: ref %empty_tuple.type = return_slot %return.param
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %A.ref: %A.type = name_ref A, %A.decl [concrete = constants.%A]
|
|
// CHECK:STDOUT: %B: %A.type = alias_binding B, %A.ref [concrete = constants.%A]
|
|
// CHECK:STDOUT: %Main.decl: %Main.type = fn_decl @Main [concrete = constants.%Main] {} {}
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @A() -> out %return.param: %empty_tuple.type {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: %.loc15_24.1: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %.loc15_24.2: init %empty_tuple.type = tuple_init () [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %.loc15_25: init %empty_tuple.type = converted %.loc15_24.1, %.loc15_24.2 [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: return %.loc15_25
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @Main() {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: name_binding_decl {
|
|
// CHECK:STDOUT: %b.patt: %pattern_type.cb1 = ref_binding_pattern b [concrete]
|
|
// CHECK:STDOUT: %b.var_patt: %pattern_type.cb1 = var_pattern %b.patt [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %b.var: ref %empty_tuple.type = var %b.var_patt
|
|
// CHECK:STDOUT: %B.ref: %A.type = name_ref B, file.%B [concrete = constants.%A]
|
|
// CHECK:STDOUT: %A.call: init %empty_tuple.type = call %B.ref()
|
|
// CHECK:STDOUT: assign %b.var, %A.call
|
|
// CHECK:STDOUT: %.loc20_18.1: type = splice_block %.loc20_18.3 [concrete = constants.%empty_tuple.type] {
|
|
// CHECK:STDOUT: %.loc20_18.2: %empty_tuple.type = tuple_literal () [concrete = constants.%empty_tuple]
|
|
// CHECK:STDOUT: %.loc20_18.3: type = converted %.loc20_18.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %b: ref %empty_tuple.type = ref_binding b, %b.var
|
|
// CHECK:STDOUT: %Destroy.Op.bound: <bound method> = bound_method %b.var, constants.%Destroy.Op
|
|
// CHECK:STDOUT: %Destroy.Op.call: init %empty_tuple.type = call %Destroy.Op.bound(%b.var)
|
|
// CHECK:STDOUT: return
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @Destroy.Op(%self.param: ref %empty_tuple.type) = "no_op";
|
|
// CHECK:STDOUT:
|