mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 08:56:55 +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
5.9 KiB
Plaintext
93 lines
5.9 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_assign_nested.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_assign_nested.carbon
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// CHECK:STDERR: fail_assign_nested.carbon:[[@LINE+4]]:36: error: cannot initialize tuple of 2 elements from tuple with 3 elements [TupleInitElementCountMismatch]
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// CHECK:STDERR: var x: ((i32, i32), (i32, i32)) = ((1, 2, 3), (4, 5, 6));
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// CHECK:STDERR: ^~~~~~~~~
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// CHECK:STDERR:
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var x: ((i32, i32), (i32, i32)) = ((1, 2, 3), (4, 5, 6));
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// CHECK:STDOUT: --- fail_assign_nested.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: %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.1c9: type = tuple_type (%tuple.type.24b, %tuple.type.24b) [concrete]
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// CHECK:STDOUT: %tuple.type.d07: type = tuple_type (%i32, %i32) [concrete]
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// CHECK:STDOUT: %tuple.type.ff1: type = tuple_type (%tuple.type.d07, %tuple.type.d07) [concrete]
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// CHECK:STDOUT: %pattern_type.72b: type = pattern_type %tuple.type.ff1 [concrete]
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// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete]
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// CHECK:STDOUT: %int_2: Core.IntLiteral = int_value 2 [concrete]
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// CHECK:STDOUT: %int_3: Core.IntLiteral = int_value 3 [concrete]
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// CHECK:STDOUT: %tuple.type.37f: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
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// CHECK:STDOUT: %int_4: Core.IntLiteral = int_value 4 [concrete]
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// CHECK:STDOUT: %int_5: Core.IntLiteral = int_value 5 [concrete]
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// CHECK:STDOUT: %int_6: Core.IntLiteral = int_value 6 [concrete]
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// CHECK:STDOUT: %tuple.type.e89: type = tuple_type (%tuple.type.37f, %tuple.type.37f) [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: .x = %x
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %x.patt: %pattern_type.72b = binding_pattern x [concrete]
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// CHECK:STDOUT: %x.var_patt: %pattern_type.72b = var_pattern %x.patt [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %x.var: ref %tuple.type.ff1 = var %x.var_patt [concrete]
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// CHECK:STDOUT: %.loc15_31.1: type = splice_block %.loc15_31.5 [concrete = constants.%tuple.type.ff1] {
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// CHECK:STDOUT: %int_32.loc15_10: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc15_10: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %int_32.loc15_15: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc15_15: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %.loc15_18: %tuple.type.24b = tuple_literal (%i32.loc15_10, %i32.loc15_15)
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// CHECK:STDOUT: %int_32.loc15_22: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc15_22: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %int_32.loc15_27: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc15_27: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: %.loc15_30: %tuple.type.24b = tuple_literal (%i32.loc15_22, %i32.loc15_27)
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// CHECK:STDOUT: %.loc15_31.2: %tuple.type.1c9 = tuple_literal (%.loc15_18, %.loc15_30)
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// CHECK:STDOUT: %.loc15_31.3: type = converted %.loc15_18, constants.%tuple.type.d07 [concrete = constants.%tuple.type.d07]
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// CHECK:STDOUT: %.loc15_31.4: type = converted %.loc15_30, constants.%tuple.type.d07 [concrete = constants.%tuple.type.d07]
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// CHECK:STDOUT: %.loc15_31.5: type = converted %.loc15_31.2, constants.%tuple.type.ff1 [concrete = constants.%tuple.type.ff1]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %x: ref %tuple.type.ff1 = bind_name x, %x.var
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// CHECK:STDOUT: }
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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: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
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// CHECK:STDOUT: %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2]
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// CHECK:STDOUT: %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3]
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// CHECK:STDOUT: %.loc15_44: %tuple.type.37f = tuple_literal (%int_1, %int_2, %int_3)
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// CHECK:STDOUT: %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4]
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// CHECK:STDOUT: %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5]
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// CHECK:STDOUT: %int_6: Core.IntLiteral = int_value 6 [concrete = constants.%int_6]
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// CHECK:STDOUT: %.loc15_55: %tuple.type.37f = tuple_literal (%int_4, %int_5, %int_6)
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// CHECK:STDOUT: %.loc15_56: %tuple.type.e89 = tuple_literal (%.loc15_44, %.loc15_55)
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// CHECK:STDOUT: assign file.%x.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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