Catch errors during replace and output to console.

[cycript.git] / sig / parse.cpp

diff --git a/sig/parse.cpp b/sig/parse.cpp
index 436e3cda9947d30a38cd9614374c3460a6697d0c..62d99cff314e0ad22806614d672755765c22203a 100644 (file)
--- a/sig/parse.cpp
+++ b/sig/parse.cpp
@@ -1,21 +1,21 @@
 /* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2013  Jay Freeman (saurik)
+ * Copyright (C) 2009-2015  Jay Freeman (saurik)
 */
 
-/* GNU General Public License, Version 3 {{{ */
+/* GNU Affero General Public License, Version 3 {{{ */
 /*
- * Cycript is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published
- * by the Free Software Foundation, either version 3 of the License,
- * or (at your option) any later version.
- *
- * Cycript is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+ * GNU Affero General Public License for more details.
+
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 **/
 /* }}} */
 
@@ -25,6 +25,7 @@
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
+#include <sstream>
 
 namespace sig {
 
@@ -83,8 +84,6 @@ void Parse_(CYPool &pool, struct Signature *signature, const char **name, char e
 
 Type *Parse_(CYPool &pool, const char **name, char eos, bool named, Callback callback) {
     char next = *(*name)++;
-    if (next == '?')
-        return NULL;
 
     Type *type(new(pool) Type());
     _assert(type != NULL);
@@ -92,6 +91,7 @@ Type *Parse_(CYPool &pool, const char **name, char eos, bool named, Callback cal
 
   parse:
     switch (next) {
+        case '?': type->primitive = unknown_P; break;
         case '#': type->primitive = typename_P; break;
 
         case '(':
@@ -148,14 +148,11 @@ Type *Parse_(CYPool &pool, const char **name, char eos, bool named, Callback cal
 
         case '^':
             type->primitive = pointer_P;
-            if (**name == '"') {
+            if (**name == '"')
+                // XXX: why is this here?
                 type->data.data.type = NULL;
-            } else {
+            else
                 type->data.data.type = Parse_(pool, name, eos, named, callback);
-                sig::Type *&target(type->data.data.type);
-                if (target != NULL && target->primitive == void_P)
-                    target = NULL;
-            }
         break;
 
         case 'b':
@@ -247,6 +244,20 @@ const char *Unparse(CYPool &pool, struct Signature *signature) {
 
 const char *Unparse_(CYPool &pool, struct Type *type) {
     switch (type->primitive) {
+        case function_P: {
+            if (type->data.signature.count == 0)
+                return "?";
+            std::ostringstream out;
+            for (size_t i(0); i != type->data.signature.count; ++i) {
+                Element &element(type->data.signature.elements[i]);
+                out << Unparse(pool, element.type);
+                if (element.offset != _not(size_t))
+                    out << pool.itoa(element.offset);
+            }
+            return pool.strdup(out.str().c_str());
+        } break;
+
+        case unknown_P: return "?";
         case typename_P: return "#";
         case union_P: return pool.strcat("(", Unparse(pool, &type->data.signature), ")", NULL);
         case string_P: return "*";
@@ -265,7 +276,15 @@ const char *Unparse_(CYPool &pool, struct Type *type) {
             return pool.strcat("[", pool.itoa(type->data.data.size), value, "]", NULL);
         } break;
 
-        case pointer_P: return pool.strcat("^", type->data.data.type == NULL ? "v" : Unparse(pool, type->data.data.type), NULL);
+        case pointer_P: {
+            // XXX: protect against the weird '"' check in Parse_
+            _assert(type->data.data.type != NULL);
+            if (type->data.data.type->primitive == function_P)
+                return "^?";
+            else
+                return pool.strcat("^", Unparse(pool, type->data.data.type), NULL);
+        } break;
+
         case bit_P: return pool.strcat("b", pool.itoa(type->data.data.size), NULL);
         case char_P: return "c";
         case double_P: return "d";