mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 22:02:51 +01:00
Richard Smith
5b884ae14d
- Track the `VarPattern` instruction on the `VarStorage` instruction so that it's available for name mangling. - Mangle global variables based on the first binding name within their pattern. - Give global variables external rather than internal linkage, except if they have no bindings whatsoever in their pattern. - To support lowering references to bindings nested within a global var, such as for `var (x: i32, b: i32)`, add some basic initial support for reference constant expressions. Treat a global `var` as a reference constant, and treat an aggregate access into a reference constant as a reference constant.
123 lines
5.6 KiB
Plaintext
123 lines
5.6 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/impl/impl_as.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/impl/impl_as.carbon
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interface Simple {
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fn F();
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}
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class C {
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impl as Simple {
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fn F() {
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// C is a complete type here.
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var c: C = {};
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}
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}
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}
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// CHECK:STDOUT: --- impl_as.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Simple.type: type = facet_type <@Simple> [concrete]
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// CHECK:STDOUT: %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic]
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// CHECK:STDOUT: %F.type.e2e: type = fn_type @F.1 [concrete]
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// CHECK:STDOUT: %F.df8: %F.type.e2e = struct_value () [concrete]
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// CHECK:STDOUT: %Simple.assoc_type: type = assoc_entity_type @Simple [concrete]
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// CHECK:STDOUT: %assoc0: %Simple.assoc_type = assoc_entity element0, @Simple.%F.decl [concrete]
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// CHECK:STDOUT: %C: type = class_type @C [concrete]
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// CHECK:STDOUT: %Simple.impl_witness: <witness> = impl_witness @C.%Simple.impl_witness_table [concrete]
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// CHECK:STDOUT: %F.type.e4b: type = fn_type @F.2 [concrete]
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// CHECK:STDOUT: %F.c94: %F.type.e4b = struct_value () [concrete]
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// CHECK:STDOUT: %Simple.facet: %Simple.type = facet_value %C, (%Simple.impl_witness) [concrete]
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// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
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// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
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// CHECK:STDOUT: %pattern_type: type = pattern_type %C [concrete]
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// CHECK:STDOUT: %C.val: %C = 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: 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: .Simple = %Simple.decl
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// CHECK:STDOUT: .C = %C.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %Simple.decl: type = interface_decl @Simple [concrete = constants.%Simple.type] {} {}
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// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @Simple {
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// CHECK:STDOUT: %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
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// CHECK:STDOUT: %F.decl: %F.type.e2e = fn_decl @F.1 [concrete = constants.%F.df8] {} {}
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// CHECK:STDOUT: %assoc0: %Simple.assoc_type = assoc_entity element0, %F.decl [concrete = constants.%assoc0]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: .F = %assoc0
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// CHECK:STDOUT: witness = (%F.decl)
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: %Self.ref as %Simple.ref {
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// CHECK:STDOUT: %F.decl: %F.type.e4b = fn_decl @F.2 [concrete = constants.%F.c94] {} {}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .F = %F.decl
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// CHECK:STDOUT: .C = <poisoned>
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// CHECK:STDOUT: witness = @C.%Simple.impl_witness
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @C {
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// CHECK:STDOUT: impl_decl @impl [concrete] {} {
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// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
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// CHECK:STDOUT: %Simple.ref: type = name_ref Simple, file.%Simple.decl [concrete = constants.%Simple.type]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Simple.impl_witness_table = impl_witness_table (@impl.%F.decl), @impl [concrete]
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// CHECK:STDOUT: %Simple.impl_witness: <witness> = impl_witness %Simple.impl_witness_table [concrete = constants.%Simple.impl_witness]
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// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
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// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
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// CHECK:STDOUT: complete_type_witness = %complete_type
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%C
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// CHECK:STDOUT: .Simple = <poisoned>
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// CHECK:STDOUT: .C = <poisoned>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: generic fn @F.1(@Simple.%Self: %Simple.type) {
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// CHECK:STDOUT: fn();
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F.2() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %c.patt: %pattern_type = binding_pattern c [concrete]
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// CHECK:STDOUT: %c.var_patt: %pattern_type = var_pattern %c.patt [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %c.var: ref %C = var %c.var_patt
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// CHECK:STDOUT: %.loc19_19.1: %empty_struct_type = struct_literal ()
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// CHECK:STDOUT: %.loc19_19.2: init %C = class_init (), %c.var [concrete = constants.%C.val]
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// CHECK:STDOUT: %.loc19_7: init %C = converted %.loc19_19.1, %.loc19_19.2 [concrete = constants.%C.val]
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// CHECK:STDOUT: assign %c.var, %.loc19_7
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// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
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// CHECK:STDOUT: %c: ref %C = bind_name c, %c.var
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @F.1(constants.%Self) {}
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @F.1(constants.%Simple.facet) {}
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// CHECK:STDOUT:
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