Fix #12602 false positive: syntaxError for variable @ address (#6263)

Author: chrchr-github

lib/tokenize.cpp

@@ -5499,6 +5499,9 @@ bool Tokenizer::simplifyTokenList1(const char FileName[])
 
     simplifySpaceshipOperator();
 
+    // @..
+    simplifyAt();
+
     // Bail out if code is garbage
     if (mTimerResults) {
         Timer t("Tokenizer::simplifyTokens1::simplifyTokenList1::findGarbageCode", mSettings.showtime, mTimerResults);
@@ -5710,9 +5713,6 @@ bool Tokenizer::simplifyTokenList1(const char FileName[])
     // Put ^{} statements in asm()
     simplifyAsm2();
 
-    // @..
-    simplifyAt();
-
     // When the assembly code has been cleaned up, no @ is allowed
     for (const Token *tok = list.front(); tok; tok = tok->next()) {
         if (tok->str() == "(") {
@@ -9599,9 +9599,9 @@ void Tokenizer::simplifyAt()
     std::set<std::string> var;
 
     for (Token *tok = list.front(); tok; tok = tok->next()) {
-        if (Token::Match(tok, "%name%|] @ %num%|%name%|(")) {
+        if (Token::Match(tok, "%name%|] @ %num%|%name%|%str%|(")) {
             const Token *end = tok->tokAt(2);
-            if (end->isNumber())
+            if (end->isLiteral())
                 end = end->next();
             else if (end->str() == "(") {
                 int par = 0;
@@ -9622,7 +9622,7 @@ void Tokenizer::simplifyAt()
             if (Token::Match(end, ": %num% ;"))
                 end = end->tokAt(2);
 
-            if (end && end->str() == ";") {
+            if (Token::Match(end, "[;=]")) {
                 if (tok->isName())
                     var.insert(tok->str());
                 tok->isAtAddress(true);

test/testtokenize.cpp

@@ -938,6 +938,8 @@ class TestTokenizer : public TestFixture {
         ASSERT_EQUALS("int x [ 10 ] ;", tokenizeAndStringify("int x[10]@0x100;"));
 
         ASSERT_EQUALS("interrupt@ f ( ) { }", tokenizeAndStringify("@interrupt f() {}"));
+
+        ASSERT_EQUALS("const short MyVariable = 0xF0F0 ;", tokenizeAndStringify("const short MyVariable @ \"MYOWNSECTION\" = 0xF0F0; ")); // #12602
     }
 
     void inlineasm() {