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/*******************************************************************************
* Copyright (c) 2004, 2016 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM - Initial API and implementation
* Ed Swartz (Nokia)
* Anton Leherbauer (Wind River Systems)
* Markus Schorn (Wind River Systems)
* Sergey Prigogin (Google)
* Richard Eames
*******************************************************************************/
package org.eclipse.cdt.core.dom.parser.cpp;
import java.util.Map;
import org.eclipse.cdt.core.dom.parser.GNUScannerExtensionConfiguration;
import org.eclipse.cdt.core.parser.GCCKeywords;
import org.eclipse.cdt.core.parser.IGCCToken;
import org.eclipse.cdt.core.parser.IScannerInfo;
import org.eclipse.cdt.core.parser.IToken;
import org.eclipse.cdt.core.parser.Keywords;
/**
* Configures the preprocessor for c++-sources as accepted by g++.
*/
public class GPPScannerExtensionConfiguration extends GNUScannerExtensionConfiguration {
private static enum CompilerType {
GCC, Clang, MSVC
}
private static final int VERSION_4_2 = version(4, 2);
private static final int VERSION_4_3 = version(4, 3);
private static final int VERSION_4_6 = version(4, 6);
private static final int VERSION_4_7 = version(4, 7);
private static final int VERSION_5_0 = version(5, 0);
private static final int VERSION_8_0 = version(8, 0);
private static GPPScannerExtensionConfiguration CONFIG = new GPPScannerExtensionConfiguration();
private static GPPScannerExtensionConfiguration CONFIG_4_2 = new GPPScannerExtensionConfiguration(VERSION_4_2);
private static GPPScannerExtensionConfiguration CONFIG_4_3 = new GPPScannerExtensionConfiguration(VERSION_4_3);
private static GPPScannerExtensionConfiguration CONFIG_4_6 = new GPPScannerExtensionConfiguration(VERSION_4_6);
private static GPPScannerExtensionConfiguration CONFIG_4_7 = new GPPScannerExtensionConfiguration(VERSION_4_7);
private static GPPScannerExtensionConfiguration CONFIG_5_0 = new GPPScannerExtensionConfiguration(VERSION_5_0);
private static GPPScannerExtensionConfiguration CONFIG_8_0 = new GPPScannerExtensionConfiguration(VERSION_8_0);
private static GPPScannerExtensionConfiguration CONFIG_CLANG = new GPPScannerExtensionConfiguration(
CompilerType.Clang, 0 /* version is ignored for now */);
private static GPPScannerExtensionConfiguration CONFIG_MSVC = new GPPScannerExtensionConfiguration(
CompilerType.MSVC, 0 /* version is ignored for now */);
public static GPPScannerExtensionConfiguration getInstance() {
return CONFIG;
}
/**
* @since 5.4
*/
public static GPPScannerExtensionConfiguration getInstance(IScannerInfo info) {
if (info != null) {
try {
final Map<String, String> definedSymbols = info.getDefinedSymbols();
// Clang. Needs to be checked first since it pretends to be GCC too.
String clang = definedSymbols.get("__clang__"); //$NON-NLS-1$
if (clang != null && Integer.valueOf(clang) > 0) {
return CONFIG_CLANG;
}
String mscVer = definedSymbols.get("_MSC_VER"); //$NON-NLS-1$
if (mscVer != null && Integer.valueOf(mscVer) > 0) {
return CONFIG_MSVC;
}
// GCC
int major = Integer.valueOf(definedSymbols.get("__GNUC__")); //$NON-NLS-1$
int minor = Integer.valueOf(definedSymbols.get("__GNUC_MINOR__")); //$NON-NLS-1$
int version = version(major, minor);
if (version >= VERSION_8_0) {
return CONFIG_8_0;
}
if (version >= VERSION_5_0) {
return CONFIG_5_0;
}
if (version >= VERSION_4_7) {
return CONFIG_4_7;
}
if (version >= VERSION_4_6) {
return CONFIG_4_6;
}
if (version >= VERSION_4_3) {
return CONFIG_4_3;
}
if (version >= VERSION_4_2) {
return CONFIG_4_2;
}
} catch (Exception e) {
// Fall-back to the default configuration.
}
}
return CONFIG;
}
public GPPScannerExtensionConfiguration() {
this(CompilerType.GCC, 0);
}
/**
* @since 5.4
*/
public GPPScannerExtensionConfiguration(int version) {
this(CompilerType.GCC, version);
}
/**
* @since 6.3
*/
@SuppressWarnings("nls")
public GPPScannerExtensionConfiguration(CompilerType compiler, int version) {
addMacro("__null", "0");
addMacro("__builtin_offsetof(T,m)",
"(reinterpret_cast <size_t>(&reinterpret_cast <const volatile char &>(static_cast<T*> (0)->m)))");
addKeyword(Keywords.c_COMPLEX, IToken.t__Complex);
addKeyword(Keywords.c_IMAGINARY, IToken.t__Imaginary);
if (compiler == CompilerType.GCC) {
if (version >= VERSION_4_2) {
addKeyword(GCCKeywords.cp_decimal32, IGCCToken.t_decimal32);
addKeyword(GCCKeywords.cp_decimal64, IGCCToken.t_decimal64);
addKeyword(GCCKeywords.cp_decimal128, IGCCToken.t_decimal128);
}
// Type-traits supported by gcc 4.3
if (version >= VERSION_4_3) {
addKeyword(GCCKeywords.cp__has_nothrow_assign, IGCCToken.tTT_has_nothrow_assign);
addKeyword(GCCKeywords.cp__has_nothrow_constructor, IGCCToken.tTT_has_nothrow_constructor);
addKeyword(GCCKeywords.cp__has_nothrow_copy, IGCCToken.tTT_has_nothrow_copy);
addKeyword(GCCKeywords.cp__has_trivial_assign, IGCCToken.tTT_has_trivial_assign);
addKeyword(GCCKeywords.cp__has_trivial_constructor, IGCCToken.tTT_has_trivial_constructor);
addKeyword(GCCKeywords.cp__has_trivial_copy, IGCCToken.tTT_has_trivial_copy);
addKeyword(GCCKeywords.cp__has_trivial_destructor, IGCCToken.tTT_has_trivial_destructor);
addKeyword(GCCKeywords.cp__has_virtual_destructor, IGCCToken.tTT_has_virtual_destructor);
addKeyword(GCCKeywords.cp__is_abstract, IGCCToken.tTT_is_abstract);
addKeyword(GCCKeywords.cp__is_base_of, IGCCToken.tTT_is_base_of);
addKeyword(GCCKeywords.cp__is_class, IGCCToken.tTT_is_class);
addKeyword(GCCKeywords.cp__is_empty, IGCCToken.tTT_is_empty);
addKeyword(GCCKeywords.cp__is_enum, IGCCToken.tTT_is_enum);
addKeyword(GCCKeywords.cp__is_pod, IGCCToken.tTT_is_pod);
addKeyword(GCCKeywords.cp__is_polymorphic, IGCCToken.tTT_is_polymorphic);
addKeyword(GCCKeywords.cp__is_union, IGCCToken.tTT_is_union);
}
if (version >= VERSION_4_6) {
addKeyword(GCCKeywords.cp__is_literal_type, IGCCToken.tTT_is_literal_type);
addKeyword(GCCKeywords.cp__is_standard_layout, IGCCToken.tTT_is_standard_layout);
addKeyword(GCCKeywords.cp__is_trivial, IGCCToken.tTT_is_trivial);
}
if (version >= VERSION_4_7) {
addKeyword(GCCKeywords.cp__float128, IGCCToken.t__float128);
addKeyword(GCCKeywords.cp__int128, IGCCToken.t__int128);
addKeyword(GCCKeywords.cp__is_final, IGCCToken.tTT_is_final);
addKeyword(GCCKeywords.cp__underlying_type, IGCCToken.tTT_underlying_type);
}
if (version >= VERSION_5_0) {
addKeyword(GCCKeywords.cp__is_trivially_copyable, IGCCToken.tTT_is_trivially_copyable);
addKeyword(GCCKeywords.cp__is_trivially_constructible, IGCCToken.tTT_is_trivially_constructible);
addKeyword(GCCKeywords.cp__is_trivially_assignable, IGCCToken.tTT_is_trivially_assignable);
}
if (version >= VERSION_8_0) {
addKeyword(GCCKeywords.cp__is_constructible, IGCCToken.tTT_is_constructible);
}
} else if (compiler == CompilerType.Clang) {
// As documented at
// http://clang.llvm.org/docs/LanguageExtensions.html#checks-for-type-trait-primitives.
// For now we don't make it dependent on the version.
addKeyword(GCCKeywords.cp__has_nothrow_assign, IGCCToken.tTT_has_nothrow_assign);
addKeyword(GCCKeywords.cp__has_nothrow_constructor, IGCCToken.tTT_has_nothrow_constructor);
addKeyword(GCCKeywords.cp__has_nothrow_copy, IGCCToken.tTT_has_nothrow_copy);
addKeyword(GCCKeywords.cp__has_trivial_assign, IGCCToken.tTT_has_trivial_assign);
addKeyword(GCCKeywords.cp__has_trivial_constructor, IGCCToken.tTT_has_trivial_constructor);
addKeyword(GCCKeywords.cp__has_trivial_copy, IGCCToken.tTT_has_trivial_copy);
addKeyword(GCCKeywords.cp__has_trivial_destructor, IGCCToken.tTT_has_trivial_destructor);
addKeyword(GCCKeywords.cp__has_virtual_destructor, IGCCToken.tTT_has_virtual_destructor);
addKeyword(GCCKeywords.cp__is_abstract, IGCCToken.tTT_is_abstract);
addKeyword(GCCKeywords.cp__is_base_of, IGCCToken.tTT_is_base_of);
addKeyword(GCCKeywords.cp__is_class, IGCCToken.tTT_is_class);
addKeyword(GCCKeywords.cp__is_empty, IGCCToken.tTT_is_empty);
addKeyword(GCCKeywords.cp__is_enum, IGCCToken.tTT_is_enum);
addKeyword(GCCKeywords.cp__is_pod, IGCCToken.tTT_is_pod);
addKeyword(GCCKeywords.cp__is_polymorphic, IGCCToken.tTT_is_polymorphic);
addKeyword(GCCKeywords.cp__is_union, IGCCToken.tTT_is_union);
addKeyword(GCCKeywords.cp__is_final, IGCCToken.tTT_is_final);
addKeyword(GCCKeywords.cp__underlying_type, IGCCToken.tTT_underlying_type);
addKeyword(GCCKeywords.cp__is_trivially_constructible, IGCCToken.tTT_is_trivially_constructible);
addKeyword(GCCKeywords.cp__is_trivially_assignable, IGCCToken.tTT_is_trivially_assignable);
addKeyword(GCCKeywords.cp__is_constructible, IGCCToken.tTT_is_constructible);
} else if (compiler == CompilerType.MSVC) {
// As documented at
// https://docs.microsoft.com/en-us/cpp/extensions/compiler-support-for-type-traits-cpp-component-extensions?view=vs-2017
// For now we don't make it dependent on the version.
addKeyword(GCCKeywords.cp__has_nothrow_assign, IGCCToken.tTT_has_nothrow_assign);
addKeyword(GCCKeywords.cp__has_nothrow_constructor, IGCCToken.tTT_has_nothrow_constructor);
addKeyword(GCCKeywords.cp__has_nothrow_copy, IGCCToken.tTT_has_nothrow_copy);
addKeyword(GCCKeywords.cp__has_trivial_assign, IGCCToken.tTT_has_trivial_assign);
addKeyword(GCCKeywords.cp__has_trivial_constructor, IGCCToken.tTT_has_trivial_constructor);
addKeyword(GCCKeywords.cp__has_trivial_copy, IGCCToken.tTT_has_trivial_copy);
addKeyword(GCCKeywords.cp__has_trivial_destructor, IGCCToken.tTT_has_trivial_destructor);
addKeyword(GCCKeywords.cp__has_virtual_destructor, IGCCToken.tTT_has_virtual_destructor);
addKeyword(GCCKeywords.cp__is_abstract, IGCCToken.tTT_is_abstract);
addKeyword(GCCKeywords.cp__is_base_of, IGCCToken.tTT_is_base_of);
addKeyword(GCCKeywords.cp__is_class, IGCCToken.tTT_is_class);
addKeyword(GCCKeywords.cp__is_empty, IGCCToken.tTT_is_empty);
addKeyword(GCCKeywords.cp__is_enum, IGCCToken.tTT_is_enum);
addKeyword(GCCKeywords.cp__is_pod, IGCCToken.tTT_is_pod);
addKeyword(GCCKeywords.cp__is_polymorphic, IGCCToken.tTT_is_polymorphic);
addKeyword(GCCKeywords.cp__is_union, IGCCToken.tTT_is_union);
// Missing from that reference page:
// - __has_assign
// - __has_copy
// - __has_finalizer
// - __has_user_destructor
// - __is_convertible_to
// - __is_delegate
// - __is_interface_class
// - __is_ref_array
// - __is_ref_class
// - __is_simple_value_class
// - __is_value_class
// These are according to:
// http://clang.llvm.org/docs/LanguageExtensions.html#checks-for-type-trait-primitives.
addKeyword(GCCKeywords.cp__is_final, IGCCToken.tTT_is_final);
addKeyword(GCCKeywords.cp__underlying_type, IGCCToken.tTT_underlying_type);
addKeyword(GCCKeywords.cp__is_trivially_constructible, IGCCToken.tTT_is_trivially_constructible);
addKeyword(GCCKeywords.cp__is_trivially_assignable, IGCCToken.tTT_is_trivially_assignable);
addKeyword(GCCKeywords.cp__is_constructible, IGCCToken.tTT_is_constructible);
// Missing from that page:
// - __is_assignable
// - __is_destructible
// - __is_nothrow_destructible
// - __is_nothrow_assignable
// - __is_nothrow_constructible
// Found by looking at some headers
addKeyword(GCCKeywords.cp__is_standard_layout, IGCCToken.tTT_is_standard_layout);
addKeyword(GCCKeywords.cp__is_literal_type, IGCCToken.tTT_is_literal_type);
addKeyword(GCCKeywords.cp__is_trivial, IGCCToken.tTT_is_trivial);
addKeyword(GCCKeywords.cp__is_trivially_copyable, IGCCToken.tTT_is_trivially_copyable);
// Missing:
// - __is_trivially_destructible
}
}
@Override
public boolean supportMinAndMaxOperators() {
return true;
}
/**
* @since 5.5
*/
@Override
public boolean supportRawStringLiterals() {
return true;
}
/**
* User Defined Literals
* @since 5.10
*/
@Override
public boolean supportUserDefinedLiterals() {
return true;
}
@Override
public boolean supportDigitSeparators() {
return true;
}
}
|
