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a23631f360
Previously we walked the global variables defined by the current file and emitted an LLVM global variable definition for each of them. Now instead, when emitting a constant reference to a global variable, we emit an LLVM global variable declaration, and we then subsequently walk the global variables defined by the current file and convert each of them from a declaration to a definition. In order to make import of names of global variables work, add support for import of `var`, as well as support for importing `tuple_access` and `tuple_pattern` in the case where the `var` has a tuple pattern in its declaration. Also treat `bind_name`s that are reference bindings to `var`s as having the same constant reference value as their `var` so that we can properly import and lower them. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com> Co-authored-by: Carbon Infra Bot <carbon-external-infra@google.com>
68 lines
3.6 KiB
Plaintext
68 lines
3.6 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/struct/fail_too_few_values.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/struct/fail_too_few_values.carbon
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// CHECK:STDERR: fail_too_few_values.carbon:[[@LINE+4]]:29: error: cannot initialize struct with 2 fields from struct with 1 field [StructInitElementCountMismatch]
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// CHECK:STDERR: var x: {.a: i32, .b: i32} = {.a = 1};
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// CHECK:STDERR: ^~~~~~~~
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// CHECK:STDERR:
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var x: {.a: i32, .b: i32} = {.a = 1};
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// CHECK:STDOUT: --- fail_too_few_values.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: %struct_type.a.b: type = struct_type {.a: %i32, .b: %i32} [concrete]
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// CHECK:STDOUT: %pattern_type.851: type = pattern_type %struct_type.a.b [concrete]
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// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete]
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// CHECK:STDOUT: %struct_type.a: type = struct_type {.a: Core.IntLiteral} [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.851 = binding_pattern x [concrete]
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// CHECK:STDOUT: %x.var_patt: %pattern_type.851 = var_pattern %x.patt [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %x.var: ref %struct_type.a.b = var %x.var_patt [concrete]
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// CHECK:STDOUT: %.loc15: type = splice_block %struct_type.a.b [concrete = constants.%struct_type.a.b] {
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// CHECK:STDOUT: %int_32.loc15_13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc15_13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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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: %struct_type.a.b: type = struct_type {.a: %i32, .b: %i32} [concrete = constants.%struct_type.a.b]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %x: ref %struct_type.a.b = bind_name x, %x.var [concrete = %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: %.loc15: %struct_type.a = struct_literal (%int_1)
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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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