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fdb188ccfd
Implementation of unused pattern bindings #2022, continued. Whereas previous PR #6460 took care of parsing, and PR #6479 prepared the stage by using _ in some test cases, this PR has the the actual implementation, using a simple dataflow analysis. --------- Co-authored-by: Burak Emir <bqe@google.com> Co-authored-by: jonmeow <jperkins@google.com>
51 lines
1.5 KiB
Plaintext
51 lines
1.5 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/function/generic/undefined.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/function/generic/undefined.carbon
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// --- call_defined.carbon
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library "[[@TEST_NAME]]";
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fn Defined[T:! type](unused x: T) {}
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fn CallDefined() {
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Defined(0 as i32);
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}
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// --- call_defined_late.carbon
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library "[[@TEST_NAME]]";
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fn Defined[T:! type](x: T);
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fn CallDefined() {
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Defined(0 as i32);
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}
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fn Defined[T:! type](unused x: T) {}
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// --- fail_call_undefined.carbon
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library "[[@TEST_NAME]]";
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fn Undefined[T:! type](x: T);
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fn CallUndefined() {
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// CHECK:STDERR: fail_call_undefined.carbon:[[@LINE+7]]:3: error: use of undefined generic function [MissingGenericFunctionDefinition]
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// CHECK:STDERR: Undefined(0 as i32);
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// CHECK:STDERR: ^~~~~~~~~
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// CHECK:STDERR: fail_call_undefined.carbon:[[@LINE-6]]:1: note: generic function declared here [MissingGenericFunctionDefinitionHere]
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// CHECK:STDERR: fn Undefined[T:! type](x: T);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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Undefined(0 as i32);
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}
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