Reorganize makefile and scripts.

src/main.c

@@ -9,9 +9,6 @@
 // This is the source file for the standalone command line interpreter. It is
 // not needed if you are embedding Wren in an application.
 
-// TODO: Don't hardcode this.
-#define MAX_LINE 1024
-
 static void failIf(bool condition, int exitCode, const char* format, ...)
 {
   if (!condition) return;
@@ -66,8 +63,10 @@ static int runRepl(WrenVM* vm)
   for (;;)
   {
     printf("> ");
-    char line[MAX_LINE];
-    fgets(line, MAX_LINE, stdin);
+
+    char* line = NULL;
+    size_t size = 0;
+    getline(&line, &size, stdin);
 
     // If stdin was closed (usually meaning the used entered Ctrl-D), exit.
     if (feof(stdin))
@@ -77,7 +76,10 @@ static int runRepl(WrenVM* vm)
     }
 
     // TODO: Handle failure.
-    wrenInterpret(vm, "(repl)", line);
+    wrenInterpret(vm, "Prompt", line);
+
+    free(line);
+
     // TODO: Figure out how this should work with wren API.
     /*
     ObjFn* fn = compile(vm, line);

src/wren_vm.c

@@ -478,7 +478,8 @@ static bool runInterpreter(WrenVM* vm)
     &&code_CLASS,
     &&code_SUBCLASS,
     &&code_METHOD_INSTANCE,
-    &&code_METHOD_STATIC
+    &&code_METHOD_STATIC,
+    &&code_END
   };
 
   #define INTERPRET_LOOP    DISPATCH();
@@ -1022,7 +1023,8 @@ static bool runInterpreter(WrenVM* vm)
     CASE_CODE(END):
       // A CODE_END should always be preceded by a CODE_RETURN. If we get here,
       // the compiler generated wrong code.
-      ASSERT(0, "Should not execute past end of bytecode.");
+      UNREACHABLE();
+      DISPATCH();
   }
 
   ASSERT(0, "Should not reach end of interpret.");