Added fast lookup of objc type qualifiers.

src/shared/cplusplus/ObjectiveCTypeQualifiers.cpp

+/***************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+**
+** Non-Open Source Usage
+**
+** Licensees may use this file in accordance with the Qt Beta Version
+** License Agreement, Agreement version 2.2 provided with the Software or,
+** alternatively, in accordance with the terms contained in a written
+** agreement between you and Nokia.
+**
+** GNU General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the packaging
+** of this file.  Please review the following information to ensure GNU
+** General Public Licensing requirements will be met:
+**
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt GPL Exception
+** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
+**
+***************************************************************************/
+
+#include "ObjectiveCTypeQualifiers.h"
+
+CPLUSPLUS_BEGIN_NAMESPACE
+
+static inline int classify2(const char *s) {
+  if (s[0] == 'i') {
+    if (s[1] == 'n') {
+      return Token_in;
+    }
+  }
+  return Token_identifier;
+}
+
+static inline int classify3(const char *s) {
+  if (s[0] == 'o') {
+    if (s[1] == 'u') {
+      if (s[2] == 't') {
+        return Token_out;
+      }
+    }
+  }
+  return Token_identifier;
+}
+
+static inline int classify5(const char *s) {
+  if (s[0] == 'b') {
+    if (s[1] == 'y') {
+      if (s[2] == 'r') {
+        if (s[3] == 'e') {
+          if (s[4] == 'f') {
+            return Token_byref;
+          }
+        }
+      }
+    }
+  }
+  else if (s[0] == 'i') {
+    if (s[1] == 'n') {
+      if (s[2] == 'o') {
+        if (s[3] == 'u') {
+          if (s[4] == 't') {
+            return Token_inout;
+          }
+        }
+      }
+    }
+  }
+  return Token_identifier;
+}
+
+static inline int classify6(const char *s) {
+  if (s[0] == 'b') {
+    if (s[1] == 'y') {
+      if (s[2] == 'c') {
+        if (s[3] == 'o') {
+          if (s[4] == 'p') {
+            if (s[5] == 'y') {
+              return Token_bycopy;
+            }
+          }
+        }
+      }
+    }
+  }
+  else if (s[0] == 'o') {
+    if (s[1] == 'n') {
+      if (s[2] == 'e') {
+        if (s[3] == 'w') {
+          if (s[4] == 'a') {
+            if (s[5] == 'y') {
+              return Token_oneway;
+            }
+          }
+        }
+      }
+    }
+  }
+  return Token_identifier;
+}
+
+int classifyObjectiveCTypeQualifiers(const char *s, int n) {
+  switch (n) {
+    case 2: return classify2(s);
+    case 3: return classify3(s);
+    case 5: return classify5(s);
+    case 6: return classify6(s);
+    default: return Token_identifier;
+  } // switch
+}
+
+CPLUSPLUS_END_NAMESPACE

src/shared/cplusplus/ObjectiveCTypeQualifiers.h

+/***************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+**
+** Non-Open Source Usage
+**
+** Licensees may use this file in accordance with the Qt Beta Version
+** License Agreement, Agreement version 2.2 provided with the Software or,
+** alternatively, in accordance with the terms contained in a written
+** agreement between you and Nokia.
+**
+** GNU General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the packaging
+** of this file.  Please review the following information to ensure GNU
+** General Public Licensing requirements will be met:
+**
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt GPL Exception
+** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
+**
+***************************************************************************/
+#ifndef CPLUSPLUS_OBJC_TYPEQUALIFIERS_H
+#define CPLUSPLUS_OBJC_TYPEQUALIFIERS_H
+
+#include "CPlusPlusForwardDeclarations.h"
+
+CPLUSPLUS_BEGIN_HEADER
+CPLUSPLUS_BEGIN_NAMESPACE
+
+enum {
+  Token_in,
+  Token_out,
+  Token_byref,
+  Token_inout,
+  Token_bycopy,
+  Token_oneway,
+  Token_identifier
+};
+
+CPLUSPLUS_EXPORT int classifyObjectiveCTypeQualifiers(const char *s, int n);
+
+CPLUSPLUS_END_NAMESPACE
+CPLUSPLUS_END_HEADER
+
+#endif // CPLUSPLUS_OBJC_TYPEQUALIFIERS_H

src/shared/cplusplus/Parser.cpp

@@ -56,6 +56,7 @@
 #include "Control.h"
 #include "AST.h"
 #include "Literals.h"
+#include "ObjectiveCTypeQualifiers.h"
 #include <cstdlib>
 #include <cstring>
 #include <cassert>
@@ -4043,16 +4044,11 @@ bool Parser::parseObjCTypeQualifiers()
         return false;
 
     Identifier *id = tok().identifier;
-    if (! strcmp("in", id->chars())  ||
-        ! strcmp("out", id->chars()) ||
-        ! strcmp("inout", id->chars()) ||
-        ! strcmp("bycopy", id->chars()) ||
-        ! strcmp("byref", id->chars()) ||
-        ! strcmp("oneway", id->chars())) {
-        consumeToken();
-        return true;
-    }
-    return false;
+    const int k = classifyObjectiveCTypeQualifiers(id->chars(), id->size());
+    if (k == Token_identifier)
+        return false;
+    consumeToken();
+    return true;
 }
 
 // objc-end: T_AT_END

src/shared/cplusplus/cplusplus.pri

@@ -36,8 +36,8 @@ HEADERS += \
     $$PWD/TranslationUnit.h \
     $$PWD/Type.h \
     $$PWD/TypeVisitor.h \
-    $$PWD/PrettyPrinter.h
-
+    $$PWD/PrettyPrinter.h \
+    $$PWD/ObjectiveCTypeQualifiers.h
 
 SOURCES += \
     $$PWD/AST.cpp \
@@ -55,6 +55,7 @@ SOURCES += \
     $$PWD/FullySpecifiedType.cpp \
     $$PWD/Keywords.cpp \
     $$PWD/ObjectiveCAtKeywords.cpp \
+    $$PWD/ObjectiveCTypeQualifiers.cpp \
     $$PWD/Lexer.cpp \
     $$PWD/LiteralTable.cpp \
     $$PWD/Literals.cpp \