write local variable declarations into a separate file

apps/mwcompiler/main.cpp

@@ -60,6 +60,10 @@ int main (int argc, char **argv)
             codeFile.write (reinterpret_cast<const char *> (&code[0]),
                 code.size()*sizeof (Interpreter::Type_Code));
             
+            std::ofstream localFile ((filename + ".locals").c_str());
+            
+            parser.getLocals().write (localFile);
+            
             return 0;
         }
         

components/compiler/fileparser.cpp

@@ -23,6 +23,11 @@ namespace Compiler
         mScriptParser.getCode (code);
     }
     
+    const Locals& FileParser::getLocals() const
+    {
+        return mLocals;
+    }
+
     bool FileParser::parseName (const std::string& name, const TokenLoc& loc,
         Scanner& scanner)
     {

components/compiler/fileparser.hpp

@@ -32,6 +32,9 @@ namespace Compiler
             void getCode (std::vector<Interpreter::Type_Code>& code) const;
             ///< store generated code in \æ code.
             
+            const Locals& getLocals() const;
+            ///< get local variable declarations.
+
             virtual bool parseName (const std::string& name, const TokenLoc& loc,
                 Scanner& scanner);
             ///< Handle a name token.

components/compiler/locals.cpp

@@ -4,6 +4,8 @@
 #include <cassert>
 #include <stdexcept>
 #include <algorithm>
+#include <ostream>
+#include <iterator>
 
 namespace Compiler
 {
@@ -52,6 +54,21 @@ namespace Compiler
         return ' ';
     }
     
+    void Locals::write (std::ostream& localFile) const
+    {
+        localFile
+            << get ('s').size() << ' '
+            << get ('l').size() << ' '
+            << get ('f').size() << std::endl;
+            
+        std::copy (get ('s').begin(), get ('s').end(),
+            std::ostream_iterator<std::string> (localFile, " "));
+        std::copy (get ('l').begin(), get ('l').end(),
+            std::ostream_iterator<std::string> (localFile, " "));
+        std::copy (get ('f').begin(), get ('f').end(),
+            std::ostream_iterator<std::string> (localFile, " "));
+    }
+    
     void Locals::declare (char type, const std::string& name)
     {
         get (type).push_back (name);

components/compiler/locals.hpp

@@ -3,6 +3,7 @@
 
 #include <vector>
 #include <string>
+#include <iosfwd>
 
 namespace Compiler
 {
@@ -25,6 +26,9 @@ namespace Compiler
             char getType (const std::string& name) const;
             ///< 's': short, 'l': long, 'f': float, ' ': does not exist.
             
+            void write (std::ostream& localFile) const;
+            ///< write declarations to file.
+            
             void declare (char type, const std::string& name);
             ///< declares a variable.