mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-01 16:35:53 +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.
64 lines
3.1 KiB
Plaintext
64 lines
3.1 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
|
|
//
|
|
// AUTOUPDATE
|
|
// TIP: To test this file alone, run:
|
|
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/struct/fail_assign_empty.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/struct/fail_assign_empty.carbon
|
|
|
|
// CHECK:STDERR: fail_assign_empty.carbon:[[@LINE+4]]:20: error: cannot initialize struct with 1 field from struct with 0 fields [StructInitElementCountMismatch]
|
|
// CHECK:STDERR: var x: {.a: i32} = {};
|
|
// CHECK:STDERR: ^~
|
|
// CHECK:STDERR:
|
|
var x: {.a: i32} = {};
|
|
|
|
// CHECK:STDOUT: --- fail_assign_empty.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
|
|
// CHECK:STDOUT: %Int.type: type = generic_class_type @Int [concrete]
|
|
// CHECK:STDOUT: %Int.generic: %Int.type = struct_value () [concrete]
|
|
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
|
|
// CHECK:STDOUT: %struct_type.a: type = struct_type {.a: %i32} [concrete]
|
|
// CHECK:STDOUT: %pattern_type.268: type = pattern_type %struct_type.a [concrete]
|
|
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: imports {
|
|
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
|
|
// CHECK:STDOUT: .Int = %Core.Int
|
|
// CHECK:STDOUT: import Core//prelude
|
|
// CHECK:STDOUT: import Core//prelude/...
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: file {
|
|
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
|
|
// CHECK:STDOUT: .Core = imports.%Core
|
|
// CHECK:STDOUT: .x = %x
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.import = import Core
|
|
// CHECK:STDOUT: name_binding_decl {
|
|
// CHECK:STDOUT: %x.patt: %pattern_type.268 = binding_pattern x [concrete]
|
|
// CHECK:STDOUT: %x.var_patt: %pattern_type.268 = var_pattern %x.patt [concrete]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %x.var: ref %struct_type.a = var %x.var_patt [concrete]
|
|
// CHECK:STDOUT: %.loc15: type = splice_block %struct_type.a [concrete = constants.%struct_type.a] {
|
|
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
|
|
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
|
|
// CHECK:STDOUT: %struct_type.a: type = struct_type {.a: %i32} [concrete = constants.%struct_type.a]
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %x: ref %struct_type.a = bind_name x, %x.var
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: fn @__global_init() {
|
|
// CHECK:STDOUT: !entry:
|
|
// CHECK:STDOUT: %.loc15: %empty_struct_type = struct_literal ()
|
|
// CHECK:STDOUT: assign file.%x.var, <error>
|
|
// CHECK:STDOUT: return
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|