misra: fix void parameter check

addons/cppcheckdata.py

@@ -202,6 +202,7 @@ class Token:
         isUnsigned         Is this token a unsigned type
         isSigned           Is this token a signed type
         isExpandedMacro    Is this token a expanded macro token
+        isRemovedVoidParameter  Has void parameter been removed?
         isSplittedVarDeclComma  Is this a comma changed to semicolon in a splitted variable declaration ('int a,b;' => 'int a; int b;')
         isSplittedVarDeclEq     Is this a '=' changed to semicolon in a splitted variable declaration ('int a=5;' => 'int a; a=5;')
         isImplicitInt      Is this token an implicit "int"?
@@ -254,6 +255,7 @@ class Token:
     isUnsigned = False
     isSigned = False
     isExpandedMacro = False
+    isRemovedVoidParameter = False
     isSplittedVarDeclComma = False
     isSplittedVarDeclEq = False
     isImplicitInt = False
@@ -318,6 +320,8 @@ class Token:
                 self.isLogicalOp = True
         if element.get('isExpandedMacro'):
             self.isExpandedMacro = True
+        if element.get('isRemovedVoidParameter'):
+            self.isRemovedVoidParameter = True
         if element.get('isSplittedVarDeclComma'):
             self.isSplittedVarDeclComma = True
         if element.get('isSplittedVarDeclEq'):

addons/misra.py

@@ -1863,15 +1863,8 @@ class MisraChecker:
             return following
 
         # Zero arguments should be in form ( void )
-        # TODO: Use rawTokens or add flag when void is removed
         def checkZeroArguments(func, startCall, endCall):
-            if (len(func.argument) == 0):
+            if not startCall.isRemovedVoidParameter and len(func.argument) == 0:
-                voidArg = startCall.next
-                while voidArg is not endCall:
-                    if voidArg.str == 'void':
-                        break
-                    voidArg = voidArg.next
-                if not voidArg.str == 'void':
                 if func.tokenDef.next:
                     self.reportError(func.tokenDef.next, 8, 2)
                 else:
@@ -1936,7 +1929,7 @@ class MisraChecker:
                 endCall = startCall.link
                 if endCall is None or endCall.str != ')':
                     continue
-                # checkZeroArguments(func, startCall, endCall)
+                checkZeroArguments(func, startCall, endCall)
                 checkDefinitionArgumentsViolations(func, startCall, endCall)
 
             # Check arguments in function declaration
@@ -1948,7 +1941,7 @@ class MisraChecker:
                 endCall = startCall.link
                 if endCall is None or endCall.str != ')':
                     continue
-                # checkZeroArguments(func, startCall, endCall)
+                checkZeroArguments(func, startCall, endCall)
                 if tokenImpl:
                     checkDeclarationArgumentsViolations(func, startCall, endCall)
                 else:

addons/test/misra/misra-test.c

@@ -337,7 +337,7 @@ const misra_8_1_a; // 8.1 8.4
 static int misra_8_2_a (int n, ...);
 extern int misra_8_2_b (int n);
 extern int misra_8_2_c (int); // 8.2
-static int misra_8_2_d (); // TODO: 8.2
+static int misra_8_2_d (); // 8.2
 static int misra_8_2_e (void);
 static int misra_8_2_f (vec, n )
 int *vec; // 8.2
@@ -345,13 +345,13 @@ int n; // 8.2
 {
     return vec[ n - 1 ];
 }
-static int misra_8_2_g ( /* comment */ ); // TODO: 8.2
+static int misra_8_2_g ( /* comment */ ); // 8.2
-static int misra_8_2_h ( /* comment 1 */ /* comment 2 */ ); // TODO: 8.2
+static int misra_8_2_h ( /* comment 1 */ /* comment 2 */ ); // 8.2
 static int misra_8_2_i ( /* comment */ void);
 static int misra_8_2_j ( /* comment */ void /* comment */);
 static int misra_8_2_k ( // 
  void);
-static int misra_8_2_l ( // TODO: 8.2
+static int misra_8_2_l ( // 8.2
 );
 static void misra_8_2_m(uint8_t * const x);
 static void misra_8_2_m(uint8_t * const x)
@@ -373,7 +373,7 @@ static int misra_8_2_p(
     const uint8_t *const a2
 );
 static int misra_8_2_q
-(); // TODO: 8.2
+(); // 8.2
 
 void misra_8_4_foo(void) {} // 8.4
 extern void misra_8_4_func(void);

lib/token.h

@@ -644,6 +644,13 @@ public:
         setFlag(fIsInline, b);
     }
 
+    bool isRemovedVoidParameter() const {
+        return getFlag(fIsRemovedVoidParameter);
+    }
+    void setRemovedVoidParameter(bool b) {
+        setFlag(fIsRemovedVoidParameter, b);
+    }
+
     bool isTemplate() const {
         return getFlag(fIsTemplate);
     }
@@ -1263,6 +1270,7 @@ private:
         fIsInline               = (1ULL << 32), // Is this a inline type
         fIsTemplate             = (1ULL << 33),
         fIsSimplifedScope       = (1ULL << 34), // scope added when simplifying e.g. if (int i = ...; ...)
+        fIsRemovedVoidParameter = (1ULL << 35), // A void function parameter has been removed
     };
 
     Token::Type mTokType;

lib/tokenize.cpp

@@ -3111,10 +3111,10 @@ void Tokenizer::simplifyArrayAccessSyntax()
 void Tokenizer::simplifyParameterVoid()
 {
     for (Token* tok = list.front(); tok; tok = tok->next()) {
-        if (Token::Match(tok, "sizeof|decltype|typeof"))
+        if (Token::Match(tok, "%name% ( void )") && !Token::Match(tok, "sizeof|decltype|typeof")) {
-            continue;
-        if (Token::Match(tok, "%name% ( void )"))
             tok->next()->deleteNext();
+            tok->next()->setRemovedVoidParameter(true);
+        }
     }
 }
 
@@ -5544,6 +5544,8 @@ void Tokenizer::dump(std::ostream &out) const
         }
         if (tok->isExpandedMacro())
             out << " isExpandedMacro=\"true\"";
+        if (tok->isRemovedVoidParameter())
+            out << " isRemovedVoidParameter=\"true\"";
         if (tok->isSplittedVarDeclComma())
             out << " isSplittedVarDeclComma=\"true\"";
         if (tok->isSplittedVarDeclEq())