Clang: Add clang query

Clang query is mechanism to use AST matcher to search for code. Think about regular expression but in the context of AST. So you get a semantic search tool for C++. Change-Id: I72e882c5b53a0c52f352a3664847c4c3e4f6fc2e Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
2016-11-15 15:38:12 +01:00
parent 96187594b5
commit 9c7ff5199f
99 changed files with 4603 additions and 246 deletions
--- a/tests/unit/unittest/clangquery-test.cpp
+++ b/tests/unit/unittest/clangquery-test.cpp
@@ -0,0 +1,165 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "googletest.h"
+#include "sourcerangecontainer-matcher.h"
+#include "dynamicastmatcherdiagnosticcontainer-matcher.h"
+
+#include <clangquery.h>
+
+using ClangBackEnd::ClangQuery;
+
+using testing::IsEmpty;
+using testing::Not;
+using testing::AllOf;
+
+namespace {
+
+class ClangQuery : public ::testing::Test
+{
+protected:
+    void SetUp() override;
+
+protected:
+    ::ClangQuery simpleFunctionQuery;
+    ::ClangQuery simpleClassQuery;
+};
+
+
+TEST_F(ClangQuery, NoSourceRangesForDefaultConstruction)
+{
+    auto sourceRanges = simpleFunctionQuery.takeSourceRanges();
+
+    ASSERT_THAT(sourceRanges.sourceRangeWithTextContainers(), IsEmpty());
+}
+
+TEST_F(ClangQuery, SourceRangesForSimpleFunctionDeclarationAreNotEmpty)
+{
+    simpleFunctionQuery.setQuery("functionDecl()");
+
+    simpleFunctionQuery.findLocations();
+
+    ASSERT_THAT(simpleFunctionQuery.takeSourceRanges().sourceRangeWithTextContainers(), Not(IsEmpty()));
+}
+
+TEST_F(ClangQuery, RootSourceRangeForSimpleFunctionDeclarationRange)
+{
+    simpleFunctionQuery.setQuery("functionDecl()");
+
+    simpleFunctionQuery.findLocations();
+
+    ASSERT_THAT(simpleFunctionQuery.takeSourceRanges().sourceRangeWithTextContainers().at(0),
+                IsSourceRangeWithText(1, 1, 8, 1, "int function(int* pointer, int value) { if (pointer == nullptr) { return value + 1; } else { return value - 1; } }"));
+}
+
+TEST_F(ClangQuery, RootSourceRangeForSimpleFieldDeclarationRange)
+{
+    simpleClassQuery.setQuery("fieldDecl(hasType(isInteger()))");
+
+    simpleClassQuery.findLocations();
+
+    ASSERT_THAT(simpleClassQuery.takeSourceRanges().sourceRangeWithTextContainers().at(0),
+                IsSourceRangeWithText(4, 5, 4, 9, "int x"));
+}
+
+TEST_F(ClangQuery, NoSourceRangesForEmptyQuery)
+{
+    simpleClassQuery.findLocations();
+
+    ASSERT_THAT(simpleClassQuery.takeSourceRanges().sourceRangeWithTextContainers(), IsEmpty());
+}
+
+TEST_F(ClangQuery, NoSourceRangesForWrongQuery)
+{
+    simpleClassQuery.setQuery("wrongQuery()");
+
+    simpleClassQuery.findLocations();
+
+    ASSERT_THAT(simpleClassQuery.takeSourceRanges().sourceRangeWithTextContainers(), IsEmpty());
+}
+
+TEST_F(ClangQuery, NoDiagnosticsForDefaultConstruction)
+{
+    auto diagnostics = simpleFunctionQuery.takeDiagnosticContainers();
+
+    ASSERT_THAT(diagnostics, IsEmpty());
+}
+
+TEST_F(ClangQuery, DiagnosticsForEmptyQuery)
+{
+    simpleFunctionQuery.findLocations();
+
+    ASSERT_THAT(simpleFunctionQuery.takeDiagnosticContainers(),
+                Not(IsEmpty()));
+}
+
+TEST_F(ClangQuery, DiagnosticsForWrongQuery)
+{
+    simpleClassQuery.setQuery("wrongQuery()");
+
+    simpleClassQuery.findLocations();
+
+    ASSERT_THAT(simpleClassQuery.takeDiagnosticContainers(),
+                Not(IsEmpty()));
+}
+
+TEST_F(ClangQuery, NoDiagnosticsForAccurateQuery)
+{
+    simpleFunctionQuery.setQuery("functionDecl()");
+
+    simpleFunctionQuery.findLocations();
+
+    ASSERT_THAT(simpleFunctionQuery.takeDiagnosticContainers(),
+                IsEmpty());
+}
+
+TEST_F(ClangQuery, DiagnosticForWrongQuery)
+{
+    simpleClassQuery.setQuery("wrongQuery()");
+
+    simpleClassQuery.findLocations();
+
+    ASSERT_THAT(simpleClassQuery.takeDiagnosticContainers(),
+                HasDiagnosticMessage("RegistryMatcherNotFound", 1, 1, 1, 11));
+}
+
+TEST_F(ClangQuery, DiagnosticForWrongArgumenType)
+{
+    simpleFunctionQuery.setQuery("functionDecl(1)");
+
+    simpleFunctionQuery.findLocations();
+
+    ASSERT_THAT(simpleFunctionQuery.takeDiagnosticContainers(),
+                AllOf(HasDiagnosticMessage("RegistryWrongArgType", 1, 14, 1, 15),
+                      HasDiagnosticContext("MatcherConstruct", 1, 1, 1, 13)));
+}
+
+void ClangQuery::SetUp()
+{
+    simpleFunctionQuery.addFile(TESTDATA_DIR, "query_simplefunction.cpp", "", {"cc", "query_simplefunction.cpp", "-std=c++14"});
+    simpleClassQuery.addFile(TESTDATA_DIR, "query_simpleclass.cpp", "", {"cc", "query_simpleclass.cpp", "-std=c++14"});
+
+}
+}