Turn params.{docname,docdir} to DString

Author: Geod24

src/dmd/dmodule.d

@@ -656,7 +656,7 @@ extern (C++) final class Module : Package
 
     extern (D) void setDocfile()
     {
-        docfile = setOutfilename(global.params.docname.toDString, global.params.docdir.toDString, arg, global.doc_ext);
+        docfile = setOutfilename(global.params.docname, global.params.docdir, arg, global.doc_ext);
     }
 
     /**

src/dmd/globals.d

@@ -230,8 +230,8 @@ extern (C++) struct Param
     const(char)[] libname;               // .lib file output name
 
     bool doDocComments;                 // process embedded documentation comments
-    const(char)* docdir;                // write documentation file to docdir directory
-    const(char)* docname;               // write documentation file to docname
+    const(char)[] docdir;               // write documentation file to docdir directory
+    const(char)[] docname;              // write documentation file to docname
     Array!(const(char)*) ddocfiles;     // macro include files for Ddoc
 
     bool doHdrGeneration;               // process embedded documentation comments

src/dmd/globals.h

@@ -196,8 +196,8 @@ struct Param
     DString libname;   // .lib file output name
 
     bool doDocComments;  // process embedded documentation comments
-    const char *docdir;  // write documentation file to docdir directory
-    const char *docname; // write documentation file to docname
+    DString docdir;      // write documentation file to docdir directory
+    DString docname;     // write documentation file to docname
     Array<const char *> ddocfiles;  // macro include files for Ddoc
 
     bool doHdrGeneration;  // process embedded documentation comments

src/dmd/mars.d

@@ -2125,12 +2125,12 @@ bool parseCommandLine(const ref Strings arguments, const size_t argc, ref Param
             case 'd':               // https://dlang.org/dmd.html#switch-Dd
                 if (!p[3])
                     goto Lnoarg;
-                params.docdir = p + 3 + (p[3] == '=');
+                params.docdir = (p + 3 + (p[3] == '=')).toDString();
                 break;
             case 'f':               // https://dlang.org/dmd.html#switch-Df
                 if (!p[3])
                     goto Lnoarg;
-                params.docname = p + 3 + (p[3] == '=');
+                params.docname = (p + 3 + (p[3] == '=')).toDString();
                 break;
             case 0:
                 break;