clang/unittests/AST/ASTVectorTest.cpp

   1 //===- unittests/AST/DeclTest.cpp --- Declaration tests -------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // Unit tests for the ASTVector container.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "clang/AST/ASTVector.h"
  14 #include "clang/AST/ASTContext.h"
  15 #include "clang/Basic/Builtins.h"
  16 #include "clang/Basic/FileManager.h"
  17 #include "clang/Basic/SourceManager.h"
  18 #include "gtest/gtest.h"
  19
  20 using namespace clang;
  21
  22 namespace clang {
  23 namespace ast {
  24
  25 namespace {
  26 class ASTVectorTest : public ::testing::Test {
  27 protected:
  28   ASTVectorTest()
  29       : FileMgr(FileMgrOpts), DiagID(new DiagnosticIDs()),
  30         Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()),
  31         SourceMgr(Diags, FileMgr), Idents(LangOpts, nullptr),
  32         Ctxt(LangOpts, SourceMgr, Idents, Sels, Builtins, TU_Complete) {}
  33
  34   FileSystemOptions FileMgrOpts;
  35   FileManager FileMgr;
  36   IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
  37   DiagnosticsEngine Diags;
  38   SourceManager SourceMgr;
  39   LangOptions LangOpts;
  40   IdentifierTable Idents;
  41   SelectorTable Sels;
  42   Builtin::Context Builtins;
  43   ASTContext Ctxt;
  44 };
  45 } // unnamed namespace
  46
  47 TEST_F(ASTVectorTest, Compile) {
  48   ASTVector<int> V;
  49   V.insert(Ctxt, V.begin(), 0);
  50 }
  51
  52 TEST_F(ASTVectorTest, InsertFill) {
  53   ASTVector<double> V;
  54
  55   // Ensure returned iterator points to first of inserted elements
  56   auto I = V.insert(Ctxt, V.begin(), 5, 1.0);
  57   ASSERT_EQ(V.begin(), I);
  58
  59   // Check non-empty case as well
  60   I = V.insert(Ctxt, V.begin() + 1, 5, 1.0);
  61   ASSERT_EQ(V.begin() + 1, I);
  62
  63   // And insert-at-end
  64   I = V.insert(Ctxt, V.end(), 5, 1.0);
  65   ASSERT_EQ(V.end() - 5, I);
  66 }
  67
  68 TEST_F(ASTVectorTest, InsertEmpty) {
  69   ASTVector<double> V;
  70
  71   // Ensure no pointer overflow when inserting empty range
  72   int Values[] = { 0, 1, 2, 3 };
  73   ArrayRef<int> IntVec(Values);
  74   auto I = V.insert(Ctxt, V.begin(), IntVec.begin(), IntVec.begin());
  75   ASSERT_EQ(V.begin(), I);
  76   ASSERT_TRUE(V.empty());
  77
  78   // Non-empty range
  79   I = V.insert(Ctxt, V.begin(), IntVec.begin(), IntVec.end());
  80   ASSERT_EQ(V.begin(), I);
  81
  82   // Non-Empty Vector, empty range
  83   I = V.insert(Ctxt, V.end(), IntVec.begin(), IntVec.begin());
  84   ASSERT_EQ(V.begin() + IntVec.size(), I);
  85
  86   // Non-Empty Vector, non-empty range
  87   I = V.insert(Ctxt, V.end(), IntVec.begin(), IntVec.end());
  88   ASSERT_EQ(V.begin() + IntVec.size(), I);
  89 }
  90
  91 } // end namespace ast
  92 } // end namespace clang