mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-01 07:45:01 +01:00
Dana Jansensandzygoloid
24bde46181
In line with the proposal in #4682, this changes the array syntax to be array(T, N). `array` is a builtin keyword which must be followed by parens containing two expressions and a separating comma. The array type expression is still fully builtin, it does not forward to a Core.Array library type yet. It merely adds the `ArrayType` instruction, as was done with the previous syntax. Followup work will change the instruction to reference to Core.Array, once the library type exists and can be used directly. --------- Co-authored-by: zygoloid <richard@metafoo.co.uk>
84 lines
4.0 KiB
Plaintext
84 lines
4.0 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/array/fail_incomplete_element.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/array/fail_incomplete_element.carbon
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class Incomplete;
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// CHECK:STDERR: fail_incomplete_element.carbon:[[@LINE+7]]:8: error: binding pattern has incomplete type `[Incomplete; 1]` in name binding declaration [IncompleteTypeInBindingDecl]
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// CHECK:STDERR: var a: array(Incomplete, 1);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_incomplete_element.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 a: array(Incomplete, 1);
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var p: Incomplete* = &a[0];
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// CHECK:STDOUT: --- fail_incomplete_element.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_1: Core.IntLiteral = int_value 1 [concrete]
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// CHECK:STDOUT: %array_type: type = array_type %int_1, %Incomplete [concrete]
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// CHECK:STDOUT: %ptr: type = ptr_type %Incomplete [concrete]
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// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [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: .Incomplete = %Incomplete.decl
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// CHECK:STDOUT: .a = %a
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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: %a.patt: <error> = binding_pattern a
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// CHECK:STDOUT: %.loc20_1: <error> = var_pattern %a.patt
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %a.var: ref <error> = var a
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// CHECK:STDOUT: %.loc20_27: type = splice_block %array_type [concrete = constants.%array_type] {
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// CHECK:STDOUT: %Incomplete.ref.loc20: type = name_ref Incomplete, %Incomplete.decl [concrete = constants.%Incomplete]
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// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
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// CHECK:STDOUT: %array_type: type = array_type %int_1, %Incomplete [concrete = constants.%array_type]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %a: <error> = bind_name a, <error>
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %p.patt: %ptr = binding_pattern p
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// CHECK:STDOUT: %.loc22_1: %ptr = var_pattern %p.patt
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %p.var: ref %ptr = var p
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// CHECK:STDOUT: %.loc22_18: 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 [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: %a.ref: <error> = name_ref a, file.%a
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// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
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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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