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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>
73 lines
2.3 KiB
Plaintext
73 lines
2.3 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/call/eval_musteval.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/call/eval_musteval.carbon
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// --- no_eval.carbon
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library "[[@TEST_NAME]]";
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fn Basic(unused n: i32) {}
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eval fn Eval(unused n: i32) {}
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fn RuntimeArg(n: i32) {
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Basic(n);
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Eval(n);
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}
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// --- fail_no_eval_musteval.carbon
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library "[[@TEST_NAME]]";
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musteval fn MustEval(unused n: i32) {}
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fn RuntimeArg(n: i32) {
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// CHECK:STDERR: fail_no_eval_musteval.carbon:[[@LINE+7]]:3: error: non-constant call to compile-time-only function [NonConstantCallToCompTimeOnlyFunction]
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// CHECK:STDERR: MustEval(n);
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// CHECK:STDERR: ^~~~~~~~~~~
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// CHECK:STDERR: fail_no_eval_musteval.carbon:[[@LINE-6]]:1: note: compile-time-only function declared here [CompTimeOnlyFunctionHere]
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// CHECK:STDERR: musteval fn MustEval(unused n: i32) {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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MustEval(n);
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}
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// --- eval.carbon
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library "[[@TEST_NAME]]";
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fn Basic(unused n: i32) {}
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eval fn Eval(unused n: i32) {}
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musteval fn MustEval(unused n: i32) {}
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fn CompileTimeArg() {
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Basic(1);
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Eval(1);
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MustEval(1);
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}
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// --- fail_todo_musteval_calls_musteval.carbon
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library "[[@TEST_NAME]]";
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musteval fn MustEval(unused n: i32) {}
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// TODO: This should be accepted.
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musteval fn CallMustEval(n: i32) {
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// CHECK:STDERR: fail_todo_musteval_calls_musteval.carbon:[[@LINE+7]]:3: error: non-constant call to compile-time-only function [NonConstantCallToCompTimeOnlyFunction]
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// CHECK:STDERR: MustEval(n);
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// CHECK:STDERR: ^~~~~~~~~~~
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// CHECK:STDERR: fail_todo_musteval_calls_musteval.carbon:[[@LINE-7]]:1: note: compile-time-only function declared here [CompTimeOnlyFunctionHere]
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// CHECK:STDERR: musteval fn MustEval(unused n: i32) {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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MustEval(n);
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}
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