clang-tools 10.0.0

ContextTests.cpp
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1 //===-- ContextTests.cpp - Context tests ------------------------*- C++ -*-===//
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 #include "Context.h"
10
11 #include "gtest/gtest.h"
12
13 namespace clang {
14 namespace clangd {
15
16 TEST(ContextTests, Simple) {
17 Key<int> IntParam;
18 Key<int> ExtraIntParam;
19
20 Context Ctx = Context::empty().derive(IntParam, 10).derive(ExtraIntParam, 20);
21
22 EXPECT_EQ(*Ctx.get(IntParam), 10);
23 EXPECT_EQ(*Ctx.get(ExtraIntParam), 20);
24 }
25
26 TEST(ContextTests, MoveOps) {
27 Key<std::unique_ptr<int>> Param;
28
29 Context Ctx = Context::empty().derive(Param, std::make_unique<int>(10));
30 EXPECT_EQ(**Ctx.get(Param), 10);
31
32 Context NewCtx = std::move(Ctx);
33 EXPECT_EQ(**NewCtx.get(Param), 10);
34 }
35
36 TEST(ContextTests, Builders) {
37 Key<int> ParentParam;
38 Key<int> ParentAndChildParam;
39 Key<int> ChildParam;
40
41 Context ParentCtx =
42 Context::empty().derive(ParentParam, 10).derive(ParentAndChildParam, 20);
43 Context ChildCtx =
44 ParentCtx.derive(ParentAndChildParam, 30).derive(ChildParam, 40);
45
46 EXPECT_EQ(*ParentCtx.get(ParentParam), 10);
47 EXPECT_EQ(*ParentCtx.get(ParentAndChildParam), 20);
48 EXPECT_EQ(ParentCtx.get(ChildParam), nullptr);
49
50 EXPECT_EQ(*ChildCtx.get(ParentParam), 10);
51 EXPECT_EQ(*ChildCtx.get(ParentAndChildParam), 30);
52 EXPECT_EQ(*ChildCtx.get(ChildParam), 40);
53 }
54
55 } // namespace clangd
56 } // namespace clang
clang::clangd::Key
Values in a Context are indexed by typed keys.
Definition: Context.h:40
Context.h
clang::clangd::Context::get
const Type * get(const Key< Type > &Key) const
Get data stored for a typed Key.
Definition: Context.h:100
Ctx
Context Ctx
Definition: TUScheduler.cpp:237
clang::clangd::TEST
TEST(BackgroundQueueTest, Priority)
Definition: BackgroundIndexTests.cpp:647
clang::clangd::Context
A context is an immutable container for per-request data that must be propagated through layers that ...
Definition: Context.h:69
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
clang::clangd::Context::derive
Context derive(const Key< Type > &Key, typename std::decay< Type >::type Value) const &
Derives a child context It is safe to move or destroy a parent context after calling derive()...
Definition: Context.h:121
clang::clangd::Context::empty
static Context empty()
Returns an empty root context that contains no data.
Definition: Context.cpp:15