| 1 | //===--- StackExhaustionHandler.cpp - - A utility for warning once when close |
|---|---|
| 2 | // to out of stack space -------*- C++ -*-===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | /// |
| 10 | /// \file |
| 11 | /// Defines a utilitiy for warning once when close to out of stack space. |
| 12 | /// |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #include "clang/Basic/StackExhaustionHandler.h" |
| 16 | #include "clang/Basic/Stack.h" |
| 17 | |
| 18 | void clang::StackExhaustionHandler::runWithSufficientStackSpace( |
| 19 | SourceLocation Loc, llvm::function_ref<void()> Fn) { |
| 20 | clang::runWithSufficientStackSpace(Diag: [&] { warnStackExhausted(Loc); }, Fn); |
| 21 | } |
| 22 | |
| 23 | void clang::StackExhaustionHandler::warnOnStackNearlyExhausted( |
| 24 | SourceLocation Loc) { |
| 25 | if (isStackNearlyExhausted()) |
| 26 | warnStackExhausted(Loc); |
| 27 | } |
| 28 | |
| 29 | void clang::StackExhaustionHandler::warnStackExhausted(SourceLocation Loc) { |
| 30 | // Only warn about this once. |
| 31 | if (!WarnedStackExhausted) { |
| 32 | DiagsRef.Report(Loc, diag::DiagID: warn_stack_exhausted); |
| 33 | WarnedStackExhausted = true; |
| 34 | } |
| 35 | } |
| 36 |