mirror of
https://github.com/carbon-language/carbon-lang.git
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Geoff RomerandRichard Smith
a112cbde5c
This is a precondition for enabling the new pattern-matching subsystem to support binding patterns that have `if` expressions in the type position. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
38 lines
1.6 KiB
Plaintext
38 lines
1.6 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/tuple/no_prelude/fail_assign_empty.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/no_prelude/fail_assign_empty.carbon
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// CHECK:STDERR: fail_assign_empty.carbon:[[@LINE+3]]:16: error: cannot initialize tuple of 1 element from tuple with 0 elements [TupleInitElementCountMismatch]
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// CHECK:STDERR: var x: ((),) = ();
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// CHECK:STDERR: ^~
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var x: ((),) = ();
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// CHECK:STDOUT: --- fail_assign_empty.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [template]
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// CHECK:STDOUT: %tuple.type: type = tuple_type (%empty_tuple.type) [template]
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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 [template] {
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// CHECK:STDOUT: .x = %x
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %x.var: ref %tuple.type = var x
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// CHECK:STDOUT: %x: ref %tuple.type = 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: %.loc14: %empty_tuple.type = tuple_literal ()
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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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