mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 15:15:50 +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.
93 lines
4.9 KiB
Plaintext
93 lines
4.9 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/tuple/fail_nested_incomplete.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/tuple/fail_nested_incomplete.carbon
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class Incomplete;
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// CHECK:STDERR: fail_nested_incomplete.carbon:[[@LINE+7]]:8: error: binding pattern has incomplete type `(i32, Incomplete)` in name binding declaration [IncompleteTypeInBindingDecl]
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// CHECK:STDERR: var t: (i32, Incomplete);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_nested_incomplete.carbon:[[@LINE-5]]:1: note: class was forward declared here [ClassForwardDeclaredHere]
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// CHECK:STDERR: class Incomplete;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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var t: (i32, Incomplete);
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var p: Incomplete* = &t[1];
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// CHECK:STDOUT: --- fail_nested_incomplete.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %Incomplete: type = class_type @Incomplete [concrete]
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// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
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// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %tuple.type.24b: type = tuple_type (type, type) [concrete]
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// CHECK:STDOUT: %tuple.type.8a4: type = tuple_type (%i32, %Incomplete) [concrete]
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// CHECK:STDOUT: %ptr: type = ptr_type %Incomplete [concrete]
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// CHECK:STDOUT: %pattern_type.275: type = pattern_type %ptr [concrete]
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// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [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: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
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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: .Incomplete = %Incomplete.decl
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// CHECK:STDOUT: .t = %t
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// CHECK:STDOUT: .p = %p
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %Incomplete.decl: type = class_decl @Incomplete [concrete = constants.%Incomplete] {} {}
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %t.patt: <error> = binding_pattern t [concrete]
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// CHECK:STDOUT: %t.var_patt: <error> = var_pattern %t.patt [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %t.var: ref <error> = var %t.var_patt [concrete = <error>]
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// CHECK:STDOUT: %.loc20_24.1: type = splice_block %.loc20_24.3 [concrete = constants.%tuple.type.8a4] {
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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: %Incomplete.ref.loc20: type = name_ref Incomplete, %Incomplete.decl [concrete = constants.%Incomplete]
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// CHECK:STDOUT: %.loc20_24.2: %tuple.type.24b = tuple_literal (%i32, %Incomplete.ref.loc20)
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// CHECK:STDOUT: %.loc20_24.3: type = converted %.loc20_24.2, constants.%tuple.type.8a4 [concrete = constants.%tuple.type.8a4]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %t: <error> = bind_name t, <error>
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %p.patt: %pattern_type.275 = binding_pattern p [concrete]
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// CHECK:STDOUT: %p.var_patt: %pattern_type.275 = var_pattern %p.patt [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %p.var: ref %ptr = var %p.var_patt [concrete]
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// CHECK:STDOUT: %.loc22: type = splice_block %ptr [concrete = constants.%ptr] {
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// CHECK:STDOUT: %Incomplete.ref.loc22: type = name_ref Incomplete, %Incomplete.decl [concrete = constants.%Incomplete]
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// CHECK:STDOUT: %ptr: type = ptr_type %Incomplete.ref.loc22 [concrete = constants.%ptr]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %p: ref %ptr = bind_name p, %p.var
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @Incomplete;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @__global_init() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %t.ref: <error> = name_ref t, file.%t [concrete = <error>]
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// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
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// CHECK:STDOUT: %addr: <error> = addr_of <error> [concrete = <error>]
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// CHECK:STDOUT: assign file.%p.var, <error>
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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