X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/ecf94af80a71bb579df516d76181f696b8c11867..2ca4dab349cc3f91032b17ced6b76023b4e67115:/sig/parse.cpp?ds=sidebyside

diff --git a/sig/parse.cpp b/sig/parse.cpp
index 02e5429..f1e63ff 100644
--- a/sig/parse.cpp
+++ b/sig/parse.cpp
@@ -1,64 +1,46 @@
-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009  Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2014  Jay Freeman (saurik)
 */
 
-/* Modified BSD License {{{ */
+/* GNU Affero General Public License, Version 3 {{{ */
 /*
- *        Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the
- *    above copyright notice, this list of conditions
- *    and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the
- *    above copyright notice, this list of conditions
- *    and the following disclaimer in the documentation
- *    and/or other materials provided with the
- *    distribution.
- * 3. The name of the author may not be used to endorse
- *    or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ * 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 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/>.
+**/
 /* }}} */
 
-#include <apr_strings.h>
 #include "sig/parse.hpp"
 #include "Error.hpp"
 
 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
+#include <sstream>
 
 namespace sig {
 
-void Parse_(apr_pool_t *pool, struct Signature *signature, const char **name, char eos, Callback callback);
-struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, Callback callback);
+void Parse_(CYPool &pool, struct Signature *signature, const char **name, char eos, Callback callback);
+struct Type *Parse_(CYPool &pool, const char **name, char eos, bool named, Callback callback);
 
 
 /* XXX: I really screwed up this time */
-void *prealloc_(apr_pool_t *pool, void *odata, size_t osize, size_t nsize) {
-    void *ndata = apr_palloc(pool, nsize);
+void *prealloc_(CYPool &pool, void *odata, size_t osize, size_t nsize) {
+    void *ndata(pool.malloc<void>(nsize));
     memcpy(ndata, odata, osize);
     return ndata;
 }
 
-void Parse_(apr_pool_t *pool, struct Signature *signature, const char **name, char eos, Callback callback) {
+void Parse_(CYPool &pool, struct Signature *signature, const char **name, char eos, Callback callback) {
     _assert(*name != NULL);
 
     // XXX: this is just a stupid check :(
@@ -82,7 +64,7 @@ void Parse_(apr_pool_t *pool, struct Signature *signature, const char **name, ch
             element->name = NULL;
         else {
             const char *quote = strchr(++*name, '"');
-            element->name = apr_pstrmemdup(pool, *name, quote - *name);
+            element->name = pool.strmemdup(*name, quote - *name);
             *name = quote + 1;
         }
 
@@ -100,17 +82,16 @@ void Parse_(apr_pool_t *pool, struct Signature *signature, const char **name, ch
     }
 }
 
-struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, Callback callback) {
+Type *Parse_(CYPool &pool, const char **name, char eos, bool named, Callback callback) {
     char next = *(*name)++;
-    if (next == '?')
-        return NULL;
 
-    struct Type *type = (struct Type *) apr_palloc(pool, sizeof(struct Type));
+    Type *type(new(pool) Type());
     _assert(type != NULL);
-    memset(type, 0, sizeof(struct Type));
+    memset(type, 0, sizeof(Type));
 
   parse:
     switch (next) {
+        case '?': type->primitive = unknown_P; break;
         case '#': type->primitive = typename_P; break;
 
         case '(':
@@ -135,8 +116,11 @@ struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, C
 
                 if (next == '"') {
                     const char *quote = strchr(*name + 1, '"');
-                    if (!named || quote[1] == eos || quote[1] == '"') {
-                        type->name = apr_pstrmemdup(pool, *name + 1, quote - *name - 1);
+                    if (quote == NULL) {
+                        printf("unterminated specific id type {%s}\n", *name - 10);
+                        _assert(false);
+                    } else if (!named || quote[1] == eos || quote[1] == '"') {
+                        type->name = pool.strmemdup(*name + 1, quote - *name - 1);
                         *name = quote + 1;
                     }
                 }
@@ -164,14 +148,11 @@ struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, C
 
         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':
@@ -188,6 +169,12 @@ struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, C
         case 's': type->primitive = short_P; break;
         case 'v': type->primitive = void_P; break;
 
+#ifdef __LP64__
+        case 'F': type->primitive = double_P; break;
+#else
+        case 'F': type->primitive = float_P; break;
+#endif
+
         case '{':
             type->primitive = struct_P;
             next = '}';
@@ -203,7 +190,7 @@ struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, C
             );
             size_t length = *name - begin - 1;
             if (strncmp(begin, "?", length) != 0)
-                type->name = (char *) apr_pstrmemdup(pool, begin, length);
+                type->name = (char *) pool.strmemdup(begin, length);
             else
                 type->name = NULL;
 
@@ -237,34 +224,46 @@ struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named, C
     return type;
 }
 
-void Parse(apr_pool_t *pool, struct Signature *signature, const char *name, Callback callback) {
+void Parse(CYPool &pool, struct Signature *signature, const char *name, Callback callback) {
     const char *temp = name;
     Parse_(pool, signature, &temp, '\0', callback);
     _assert(temp[-1] == '\0');
 }
 
-const char *Unparse(apr_pool_t *pool, struct Signature *signature) {
+const char *Unparse(CYPool &pool, struct Signature *signature) {
     const char *value = "";
     size_t offset;
 
     for (offset = 0; offset != signature->count; ++offset) {
         const char *type = Unparse(pool, signature->elements[offset].type);
-        value = apr_pstrcat(pool, value, type, NULL);
+        value = pool.strcat(value, type, NULL);
     }
 
     return value;
 }
 
-const char *Unparse(apr_pool_t *pool, struct Type *type) {
-    if (type == NULL)
-        return "?";
-    else switch (type->primitive) {
+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 apr_psprintf(pool, "(%s)", Unparse(pool, &type->data.signature));
+        case union_P: return pool.strcat("(", Unparse(pool, &type->data.signature), ")", NULL);
         case string_P: return "*";
         case selector_P: return ":";
         case block_P: return "@?";
-        case object_P: return type->name == NULL ? "@" : apr_psprintf(pool, "@\"%s\"", type->name);
+        case object_P: return type->name == NULL ? "@" : pool.strcat("@\"", type->name, "\"", NULL);
         case boolean_P: return "B";
         case uchar_P: return "C";
         case uint_P: return "I";
@@ -274,11 +273,19 @@ const char *Unparse(apr_pool_t *pool, struct Type *type) {
 
         case array_P: {
             const char *value = Unparse(pool, type->data.data.type);
-            return apr_psprintf(pool, "[%"APR_SIZE_T_FMT"%s]", type->data.data.size, value);
+            return pool.strcat("[", pool.itoa(type->data.data.size), value, "]", NULL);
         } break;
 
-        case pointer_P: return apr_psprintf(pool, "^%s", type->data.data.type == NULL ? "v" : Unparse(pool, type->data.data.type));
-        case bit_P: return apr_psprintf(pool, "b%"APR_SIZE_T_FMT"", type->data.data.size);
+        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";
         case float_P: return "f";
@@ -287,11 +294,45 @@ const char *Unparse(apr_pool_t *pool, struct Type *type) {
         case longlong_P: return "q";
         case short_P: return "s";
         case void_P: return "v";
-        case struct_P: return apr_psprintf(pool, "{%s=%s}", type->name == NULL ? "?" : type->name, Unparse(pool, &type->data.signature));
+        case struct_P: return pool.strcat("{", type->name == NULL ? "?" : type->name, "=", Unparse(pool, &type->data.signature), "}", NULL);
     }
 
     _assert(false);
     return NULL;
 }
 
+const char *Unparse(CYPool &pool, struct Type *type) {
+    if (type == NULL)
+        return "?";
+
+    const char *base(Unparse_(pool, type));
+    if (type->flags == 0)
+        return base;
+
+    #define iovec_(base, size) \
+        (struct iovec) {const_cast<char *>(base), size}
+
+    size_t size(strlen(base));
+    char buffer[7 + size];
+    size_t offset(0);
+
+    if ((type->flags & JOC_TYPE_INOUT) != 0)
+        buffer[offset++] = 'N';
+    if ((type->flags & JOC_TYPE_IN) != 0)
+        buffer[offset++] = 'n';
+    if ((type->flags & JOC_TYPE_BYCOPY) != 0)
+        buffer[offset++] = 'O';
+    if ((type->flags & JOC_TYPE_OUT) != 0)
+        buffer[offset++] = 'o';
+    if ((type->flags & JOC_TYPE_BYREF) != 0)
+        buffer[offset++] = 'R';
+    if ((type->flags & JOC_TYPE_CONST) != 0)
+        buffer[offset++] = 'r';
+    if ((type->flags & JOC_TYPE_ONEWAY) != 0)
+        buffer[offset++] = 'V';
+
+    memcpy(buffer + offset, base, size);
+    return pool.strmemdup(buffer, offset + size);
+}
+
 }