[clang-format] Missing space after cast in a macro

[MyDeveloperDay]

Summary

https://github.com/llvm/llvm-project/issues/52979

Though SpaceAfterCStyleCast is set to true, clang-format 13 does not add a space after (void *) here:

#define CONF_BOOL(conf, offset) (bool *) (void *)((char *) (conf) + (offset))

This patch addresses that

Fixes: #52979

[curdeius]

LGTM.

[owenpan]

LGTM except for the nit.

clang/lib/Format/TokenAnnotator.cpp

1887

Nit.

[MyDeveloperDay]

clang/lib/Format/TokenAnnotator.cpp

1887

of course my bad.. will make that change

[MyDeveloperDay]

Fix nit and add a few more tests just to be sure

clang/lib/Format/TokenAnnotator.cpp

if (!Style.isCSharp() && !Style.isCpp() &&
       return false;
 
     // Empty parens aren't casts and there are no casts at the end of the line.
     if (Tok.Previous == Tok.MatchingParen || !Tok.Next || !Tok.MatchingParen)
       return false;
 
     FormatToken *LeftOfParens = Tok.MatchingParen->getPreviousNonComment();
     if (LeftOfParens) {
-      // If there is a closing parenthesis left of the current parentheses,
-      // look past it as these might be chained casts.
-      if (LeftOfParens->is(tok::r_paren)) {
+      // If there is a closing parenthesis left of the current
+      // parentheses, look past it as these might be chained casts.
+      if (LeftOfParens->is(tok::r_paren) &&
+          LeftOfParens->isNot(TT_CastRParen)) {
         if (!LeftOfParens->MatchingParen ||
             !LeftOfParens->MatchingParen->Previous)
           return false;
         LeftOfParens = LeftOfParens->MatchingParen->Previous;
       }
 
       // If there is an identifier (or with a few exceptions a keyword) right
       // before the parentheses, this is unlikely to be a cast.

clang/unittests/Format/FormatTest.cpp

TEST_F(FormatTest, FormatsCasts) {
 
   verifyFormat("{ (void)F; }");
 
   // Don't break after a cast's
   verifyFormat("int aaaaaaaaaaaaaaaaaaaaaaaaaaa =\n"
                "    (aaaaaaaaaaaaaaaaaaaaaaaaaa *)(aaaaaaaaaaaaaaaaaaaaaa +\n"
                "                                   bbbbbbbbbbbbbbbbbbbbbb);");
 
+  verifyFormat("#define CONF_BOOL(x) (bool *)(void *)(x)");
+  verifyFormat("#define CONF_BOOL(x) (bool *)(x)");
+  verifyFormat("#define CONF_BOOL(x) (bool)(x)");
+  verifyFormat("bool *y = (bool *)(void *)(x);");
+  verifyFormat("#define CONF_BOOL(x) (bool *)(void *)(int)(x)");
+  verifyFormat("bool *y = (bool *)(void *)(int)(x);");
+  verifyFormat("#define CONF_BOOL(x) (bool *)(void *)(int)foo(x)");
+  verifyFormat("bool *y = (bool *)(void *)(int)foo(x);");
+
   // These are not casts.
   verifyFormat("void f(int *) {}");
   verifyFormat("f(foo)->b;");
   verifyFormat("f(foo).b;");
   verifyFormat("f(foo)(b);");
   verifyFormat("f(foo)[b];");
   verifyFormat("[](foo) { return 4; }(bar);");
   verifyFormat("(*funptr)(foo)[4];");
verifyFormat("do {\n"
                "  do_something(( int ) i);\n"
                "} while (something( ));",
                Spaces);
   verifyFormat("switch (x) {\n"
                "default:\n"
                "  break;\n"
                "}",
                Spaces);
+  verifyFormat("#define CONF_BOOL(x) ( bool * ) ( void * ) (x)", Spaces);
+  verifyFormat("#define CONF_BOOL(x) ( bool * ) (x)", Spaces);
+  verifyFormat("#define CONF_BOOL(x) ( bool ) (x)", Spaces);
+  verifyFormat("bool *y = ( bool * ) ( void * ) (x);", Spaces);
+  verifyFormat("bool *y = ( bool * ) (x);", Spaces);
 
   // Run subset of tests again with:
   Spaces.SpacesInCStyleCastParentheses = false;
   Spaces.SpaceAfterCStyleCast = true;
   verifyFormat("while ((bool) 1)\n"
                "  continue;",
                Spaces);
   verifyFormat("do {\n"
                "  do_something((int) i);\n"
                "} while (something( ));",
                Spaces);
 
   verifyFormat("size_t idx = (size_t) (ptr - ((char *) file));", Spaces);
   verifyFormat("size_t idx = (size_t) a;", Spaces);
   verifyFormat("size_t idx = (size_t) (a - 1);", Spaces);
   verifyFormat("size_t idx = (a->*foo)(a - 1);", Spaces);
   verifyFormat("size_t idx = (a->foo)(a - 1);", Spaces);
   verifyFormat("size_t idx = (*foo)(a - 1);", Spaces);
   verifyFormat("size_t idx = (*(foo))(a - 1);", Spaces);
+  verifyFormat("#define CONF_BOOL(x) (bool *) (void *) (x)", Spaces);
+  verifyFormat("#define CONF_BOOL(x) (bool *) (void *) (int) (x)", Spaces);
+  verifyFormat("bool *y = (bool *) (void *) (x);", Spaces);
+  verifyFormat("bool *y = (bool *) (void *) (int) (x);", Spaces);
+  verifyFormat("bool *y = (bool *) (void *) (int) foo(x);", Spaces);
   Spaces.ColumnLimit = 80;
   Spaces.IndentWidth = 4;
   Spaces.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
   verifyFormat("void foo( ) {\n"
                "    size_t foo = (*(function))(\n"
                "        Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong, "
                "BarrrrrrrrrrrrLong,\n"
                "        FoooooooooLooooong);\n"