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carbon-lang/toolchain/check/testdata/array/fail_bound_overflow.carbon
T
Dana Jansensandzygoloid 24bde46181 Change array syntax from [T; N] to array(T, N) (#4981)
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>
2025-02-20 22:42:47 +00:00

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// 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/array/fail_bound_overflow.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/fail_bound_overflow.carbon
// CHECK:STDERR: fail_bound_overflow.carbon:[[@LINE+4]]:19: error: array bound of 39999999999999999993 is too large [ArrayBoundTooLarge]
// CHECK:STDERR: var a: array(i32, 39999999999999999993);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
var a: array(i32, 39999999999999999993);
// CHECK:STDERR: fail_bound_overflow.carbon:[[@LINE+7]]:14: error: cannot implicitly convert from `Core.IntLiteral` to `type` [ImplicitAsConversionFailure]
// CHECK:STDERR: var b: array(1, 39999999999999999993);
// CHECK:STDERR: ^
// CHECK:STDERR: fail_bound_overflow.carbon:[[@LINE+4]]:14: note: type `Core.IntLiteral` does not implement interface `Core.ImplicitAs(type)` [MissingImplInMemberAccessNote]
// CHECK:STDERR: var b: array(1, 39999999999999999993);
// CHECK:STDERR: ^
// CHECK:STDERR:
var b: array(1, 39999999999999999993);
// CHECK:STDOUT: --- fail_bound_overflow.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %int_39999999999999999993: Core.IntLiteral = int_value 39999999999999999993 [concrete]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .a = %a
// CHECK:STDOUT: .b = %b
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %a.patt: <error> = binding_pattern a
// CHECK:STDOUT: %.loc15_1: <error> = var_pattern %a.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %a.var: ref <error> = var a
// CHECK:STDOUT: %.loc15_39: type = splice_block %array_type.loc15 [concrete = <error>] {
// 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: %int_39999999999999999993.loc15: Core.IntLiteral = int_value 39999999999999999993 [concrete = constants.%int_39999999999999999993]
// CHECK:STDOUT: %array_type.loc15: type = array_type %int_39999999999999999993.loc15, %i32 [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: %a: <error> = bind_name a, <error>
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %b.patt: <error> = binding_pattern b
// CHECK:STDOUT: %.loc24_1: <error> = var_pattern %b.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %b.var: ref <error> = var b
// CHECK:STDOUT: %.loc24_37: type = splice_block %array_type.loc24 [concrete = <error>] {
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
// CHECK:STDOUT: %int_39999999999999999993.loc24: Core.IntLiteral = int_value 39999999999999999993 [concrete = constants.%int_39999999999999999993]
// CHECK:STDOUT: %.loc24_14: type = converted %int_1, <error> [concrete = <error>]
// CHECK:STDOUT: %array_type.loc24: type = array_type %int_39999999999999999993.loc24, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: %b: <error> = bind_name b, <error>
// CHECK:STDOUT: }
// CHECK:STDOUT: