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Toolchains: Detect unspecified language version

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We checked the command line from the project manager for "-std=X" and
friends to figure out the language version to use. However, if such a
flag was not provided, we assumed the latest version we support. This
could conflict with the actual version of the compiler and its
predefined macros.

Figure out the version by inspecting __cplusplus/__STDC_VERSION__ in the
predefined macros of the toolchain. The MSVC compiler is an exception to
this, as it does not seem to properly set the value - check for
_MSVC_LANG if possible, otherwise simply assume some versions as before.

While at it, add also support for C17/C18 and the upcoming C++2a.

Task-number: QTCREATORBUG-20884
Task-number: QTCREATORBUG-21188
Change-Id: I464ffcd52d2120c0208275a050e82efda44fae1c
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
This commit is contained in:
Nikolai Kosjar
2018-09-27 10:18:44 +02:00
parent 9192b6b024
commit 5900766ecb
28 changed files with 317 additions and 208 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
src/plugins/cpptools/cppprojectinfogenerator.cpp
View File

@@ -30,6 +30,8 @@
#include <projectexplorer/headerpath.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <utils/qtcassert.h>
namespace CppTools {
namespace Internal {
@@ -39,9 +41,11 @@ class ToolChainEvaluator
{
public:
ToolChainEvaluator(ProjectPart &projectPart,
Language language,
const RawProjectPartFlags &flags,
const ToolChainInfo &tcInfo)
: m_projectPart(projectPart)
, m_language(language)
, m_flags(flags)
, m_tcInfo(tcInfo)
{
@@ -61,11 +65,20 @@ public:
if (m_projectPart.toolchainType == ProjectExplorer::Constants::COMPILATION_DATABASE_TOOLCHAIN_TYPEID)
m_projectPart.extraCodeModelFlags = m_flags.commandLineFlags;
mapLanguageVersion();
mapLanguageExtensions();
if (m_tcInfo.macroInspectionRunner) {
auto macroInspectionReport = m_tcInfo.macroInspectionRunner(m_flags.commandLineFlags);
m_projectPart.toolChainMacros = macroInspectionReport.macros;
m_projectPart.languageVersion = static_cast<ProjectPart::LanguageVersion>(
macroInspectionReport.languageVersion);
} else { // No compiler set in kit.
if (m_language == Language::C)
m_projectPart.languageVersion = ProjectPart::LanguageVersion::LatestCVersion;
if (m_language == Language::CXX)
m_projectPart.languageVersion = ProjectPart::LanguageVersion::LatestCxxVersion;
}
mapLanguageExtensions();
addHeaderPaths();
addDefines();
}
private:
@@ -76,27 +89,6 @@ private:
: ProjectPart::WordWidth32Bit;
}
void mapLanguageVersion()
{
using namespace ProjectExplorer;
const ToolChain::CompilerFlags &compilerFlags = m_flags.compilerFlags;
ProjectPart::LanguageVersion &languageVersion = m_projectPart.languageVersion;
if (compilerFlags & ToolChain::StandardC11)
languageVersion = ProjectPart::C11;
else if (compilerFlags & ToolChain::StandardC99)
languageVersion = ProjectPart::C99;
else if (compilerFlags & ToolChain::StandardCxx17)
languageVersion = ProjectPart::CXX17;
else if (compilerFlags & ToolChain::StandardCxx14)
languageVersion = ProjectPart::CXX14;
else if (compilerFlags & ToolChain::StandardCxx11)
languageVersion = ProjectPart::CXX11;
else if (compilerFlags & ToolChain::StandardCxx98)
languageVersion = ProjectPart::CXX98;
}
void mapLanguageExtensions()
{
using namespace ProjectExplorer;
@@ -133,16 +125,9 @@ private:
}
}
void addDefines()
{
if (!m_tcInfo.predefinedMacrosRunner)
return; // No compiler set in kit.
m_projectPart.toolChainMacros = m_tcInfo.predefinedMacrosRunner(m_flags.commandLineFlags);
}
private:
ProjectPart &m_projectPart;
const Language m_language;
const RawProjectPartFlags &m_flags;
const ToolChainInfo &m_tcInfo;
};
@@ -205,15 +190,12 @@ QVector<ProjectPart::Ptr> ProjectInfoGenerator::createProjectParts(const RawProj
const ProjectPart::Ptr part = projectPartFromRawProjectPart(rawProjectPart,
m_projectUpdateInfo.project);
ProjectPart::LanguageVersion defaultVersion = ProjectPart::LatestCxxVersion;
if (rawProjectPart.qtVersion == ProjectPart::Qt4_8_6AndOlder)
defaultVersion = ProjectPart::CXX11;
if (cat.hasCxxSources()) {
result << createProjectPart(rawProjectPart,
part,
cat.cxxSources(),
cat.partName("C++"),
defaultVersion,
Language::CXX,
ProjectPart::NoExtensions);
}
@@ -222,7 +204,7 @@ QVector<ProjectPart::Ptr> ProjectInfoGenerator::createProjectParts(const RawProj
part,
cat.objcxxSources(),
cat.partName("Obj-C++"),
defaultVersion,
Language::CXX,
ProjectPart::ObjectiveCExtensions);
}
@@ -231,7 +213,7 @@ QVector<ProjectPart::Ptr> ProjectInfoGenerator::createProjectParts(const RawProj
part,
cat.cSources(),
cat.partName("C"),
ProjectPart::LatestCVersion,
Language::C,
ProjectPart::NoExtensions);
}
@@ -240,7 +222,7 @@ QVector<ProjectPart::Ptr> ProjectInfoGenerator::createProjectParts(const RawProj
part,
cat.objcSources(),
cat.partName("Obj-C"),
ProjectPart::LatestCVersion,
Language::C,
ProjectPart::ObjectiveCExtensions);
}
}
@@ -251,17 +233,16 @@ ProjectPart::Ptr ProjectInfoGenerator::createProjectPart(const RawProjectPart &r
const ProjectPart::Ptr &templateProjectPart,
const ProjectFiles &projectFiles,
const QString &partName,
ProjectPart::LanguageVersion languageVersion,
Language language,
ProjectPart::LanguageExtensions languageExtensions)
{
ProjectPart::Ptr part(templateProjectPart->copy());
part->displayName = partName;
part->files = projectFiles;
part->languageVersion = languageVersion;
RawProjectPartFlags flags;
ToolChainInfo tcInfo;
if (languageVersion <= ProjectPart::LatestCVersion) {
if (language == Language::C) {
flags = rawProjectPart.flagsForC;
tcInfo = m_projectUpdateInfo.cToolChainInfo;
}
@@ -271,7 +252,7 @@ ProjectPart::Ptr ProjectInfoGenerator::createProjectPart(const RawProjectPart &r
tcInfo = m_projectUpdateInfo.cxxToolChainInfo;
}
// TODO: If no toolchain is set, show a warning
ToolChainEvaluator evaluator(*part.data(), flags, tcInfo);
ToolChainEvaluator evaluator(*part.data(), language, flags, tcInfo);
evaluator.evaluate();
part->languageExtensions |= languageExtensions;