mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-04 22:02:52 +01:00
Geoff RomerandRichard Smith
43ffd721a4
The issue of whether/how to include `ref` tags in the textual and in-memory SemIR (see discussion [here](https://discord.com/channels/655572317891461132/655578254970716160/1431316355742961805)) is left as future work. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
97 lines
4.0 KiB
Plaintext
97 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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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
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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/let/ref.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/let/ref.carbon
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// --- local.carbon
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library "[[@TEST_NAME]]";
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fn F(a: i32) {
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var b: i32 = a;
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//@dump-sem-ir-begin
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let ref c: i32 = b;
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let (ref d: i32, ref e: i32) = (b, c);
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//@dump-sem-ir-end
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}
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// --- fail_ref_to_value.carbon
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library "[[@TEST_NAME]]";
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fn F(a: i32) {
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// CHECK:STDERR: fail_ref_to_value.carbon:[[@LINE+4]]:20: error: cannot bind durable reference to non-reference value of type `i32` [ConversionFailureNonRefToRef]
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// CHECK:STDERR: let ref b: i32 = a;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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let ref b: i32 = a;
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}
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// --- fail_ref_to_temporary.carbon
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library "[[@TEST_NAME]]";
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fn G() -> i32;
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fn F() {
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// CHECK:STDERR: fail_ref_to_temporary.carbon:[[@LINE+4]]:20: error: cannot bind durable reference to non-reference value of type `i32` [ConversionFailureNonRefToRef]
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// CHECK:STDERR: let ref a: i32 = G();
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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let ref a: i32 = G();
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}
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// CHECK:STDOUT: --- local.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: %i32: type = class_type @Int, @Int(%int_32) [concrete]
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// CHECK:STDOUT: %pattern_type.7ce: type = pattern_type %i32 [concrete]
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// CHECK:STDOUT: %tuple.type.d07: type = tuple_type (%i32, %i32) [concrete]
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// CHECK:STDOUT: %pattern_type.511: type = pattern_type %tuple.type.d07 [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: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F(%a.param: %i32) {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %c.patt: %pattern_type.7ce = ref_binding_pattern c [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %b.ref.loc7: ref %i32 = name_ref b, %b
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// CHECK:STDOUT: %.loc7: type = splice_block %i32.loc7 [concrete = constants.%i32] {
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// CHECK:STDOUT: %int_32.loc7: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc7: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %c: ref %i32 = ref_binding c, %b.ref.loc7
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %d.patt: %pattern_type.7ce = ref_binding_pattern d [concrete]
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// CHECK:STDOUT: %e.patt: %pattern_type.7ce = ref_binding_pattern e [concrete]
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// CHECK:STDOUT: %.loc8_30: %pattern_type.511 = tuple_pattern (%d.patt, %e.patt) [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %b.ref.loc8: ref %i32 = name_ref b, %b
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// CHECK:STDOUT: %c.ref: ref %i32 = name_ref c, %c
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// CHECK:STDOUT: %.loc8_39: %tuple.type.d07 = tuple_literal (%b.ref.loc8, %c.ref)
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// CHECK:STDOUT: %.loc8_15: type = splice_block %i32.loc8_15 [concrete = constants.%i32] {
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// CHECK:STDOUT: %int_32.loc8_15: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc8_15: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %d: ref %i32 = ref_binding d, %b.ref.loc8
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// CHECK:STDOUT: %.loc8_27: type = splice_block %i32.loc8_27 [concrete = constants.%i32] {
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// CHECK:STDOUT: %int_32.loc8_27: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
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// CHECK:STDOUT: %i32.loc8_27: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %e: ref %i32 = ref_binding e, %c.ref
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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