X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/2f51d6ab2c7e56fade7ac6118cf02df9107ca3af..5a6d4d25db388006fc37491a1253b4a102461a6f:/Execute.cpp

diff --git a/Execute.cpp b/Execute.cpp
index e43cce6..13da508 100644
--- a/Execute.cpp
+++ b/Execute.cpp
@@ -1,40 +1,22 @@
-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009  Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2010  Jay Freeman (saurik)
 */
 
-/* Modified BSD License {{{ */
+/* GNU Lesser 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:
+ * Cycript is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
  *
- * 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.
+ * Cycript 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 Lesser General Public
+ * License for more details.
  *
- * 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.
-*/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+**/
 /* }}} */
 
 #include "Internal.hpp"
@@ -165,11 +147,15 @@ JSStringRef push_s;
 JSStringRef splice_s;
 JSStringRef toCYON_s;
 JSStringRef toJSON_s;
+JSStringRef toPointer_s;
+JSStringRef toString_s;
 
 static JSStringRef Result_;
 
 void CYFinalize(JSObjectRef object) {
-    delete reinterpret_cast<CYData *>(JSObjectGetPrivate(object));
+    CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
+    if (--internal->count_ == 0)
+        delete internal;
 }
 
 void Structor_(apr_pool_t *pool, sig::Type *&type) {
@@ -177,6 +163,7 @@ void Structor_(apr_pool_t *pool, sig::Type *&type) {
         type->primitive == sig::pointer_P &&
         type->data.data.type != NULL &&
         type->data.data.type->primitive == sig::struct_P &&
+        type->data.data.type->name != NULL &&
         strcmp(type->data.data.type->name, "_objc_class") == 0
     ) {
         type->primitive = sig::typename_P;
@@ -480,13 +467,37 @@ static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef
     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 } CYCatch }
 
+static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
+    CYPool pool;
+    std::ostringstream str;
+
+    CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
+    CYStringify(str, string.data, string.size);
+
+    std::string value(str.str());
+    return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
+} CYCatch }
+
 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, size_t length, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
     Pointer *internal(new Pointer(pointer, context, owner, length, type));
     return JSObjectMake(context, Pointer_, internal);
 }
 
-static JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), const char *type) {
-    cy::Functor *internal(new cy::Functor(type, function));
+static JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), const char *type, void **cache = NULL) {
+    cy::Functor *internal;
+
+    if (cache != NULL && *cache != NULL) {
+        internal = reinterpret_cast<cy::Functor *>(*cache);
+        ++internal->count_;
+    } else {
+        internal = new cy::Functor(type, function);
+
+        if (cache != NULL) {
+            *cache = internal;
+            ++internal->count_;
+        }
+    }
+
     return JSObjectMake(context, Functor_, internal);
 }
 
@@ -498,12 +509,19 @@ void *CYCastPointer_(JSContextRef context, JSValueRef value) {
     switch (JSValueGetType(context, value)) {
         case kJSTypeNull:
             return NULL;
-        /*case kJSTypeObject:
+        case kJSTypeObject: {
+            JSObjectRef object((JSObjectRef) value);
             if (JSValueIsObjectOfClass(context, value, Pointer_)) {
-                Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate((JSObjectRef) value)));
+                Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
                 return internal->value_;
-            }*/
-        default:
+            }
+            JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
+            if (CYIsCallable(context, toPointer)) {
+                JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
+                _assert(value != NULL);
+                return CYCastPointer_(context, value);
+            }
+        } default:
             double number(CYCastDouble(context, value));
             if (std::isnan(number))
                 throw CYJSError(context, "cannot convert value to pointer");
@@ -677,6 +695,15 @@ Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function,
     // XXX: in point of fact, this may /need/ to leak :(
     Closure_privateData *internal(new Closure_privateData(context, function, type));
 
+#if defined(__APPLE__) && defined(__arm__)
+    void *executable;
+    ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
+
+    ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, callback, internal, executable));
+    _assert(status == FFI_OK);
+
+    internal->value_ = executable;
+#else
     ffi_closure *closure((ffi_closure *) _syscall(mmap(
         NULL, sizeof(ffi_closure),
         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
@@ -689,6 +716,7 @@ Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function,
     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 
     internal->value_ = closure;
+#endif
 
     return internal;
 }
@@ -953,7 +981,7 @@ static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSSt
 
                 case '1':
                     if (void (*symbol)() = reinterpret_cast<void (*)()>(CYCastSymbol(name.data)))
-                        return CYMakeFunctor(context, symbol, entry->value_);
+                        return CYMakeFunctor(context, symbol, entry->value_, &entry->cache_);
                     else return NULL;
 
                 case '2':
@@ -1175,7 +1203,7 @@ JSObjectRef CYGetGlobalObject(JSContextRef context) {
     return JSContextGetGlobalObject(context);
 }
 
-const char *CYExecute(apr_pool_t *pool, const char *code) {
+const char *CYExecute(apr_pool_t *pool, CYUTF8String code) {
     JSContextRef context(CYGetJSContext());
     JSValueRef exception(NULL), result;
 
@@ -1278,6 +1306,7 @@ void CYInitializeDynamic() {
     Type_privateData::Class_ = JSClassCreate(&definition);
 
     definition = kJSClassDefinitionEmpty;
+    definition.className = "Global";
     //definition.getProperty = &Global_getProperty;
     Global_ = JSClassCreate(&definition);
 
@@ -1292,6 +1321,8 @@ void CYInitializeDynamic() {
     splice_s = JSStringCreateWithUTF8CString("splice");
     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
+    toPointer_s = JSStringCreateWithUTF8CString("toPointer");
+    toString_s = JSStringCreateWithUTF8CString("toString");
 
     Result_ = JSStringCreateWithUTF8CString("_");
 
@@ -1379,9 +1410,13 @@ extern "C" void CYSetupContext(JSGlobalContextRef context) {
 
     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
     CYSetProperty(context, cy, CYJSString("String"), String);
+
+    JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
+    CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
 /* }}} */
 
     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
+    CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
 
     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
@@ -1397,23 +1432,25 @@ extern "C" void CYSetupContext(JSGlobalContextRef context) {
     JSObjectRef all(JSObjectMake(context, All_, NULL));
     CYSetProperty(context, cycript, CYJSString("all"), all);
 
-    JSObjectRef last(NULL), curr(global);
+    if (true) {
+        JSObjectRef last(NULL), curr(global);
 
-    goto next; for (JSValueRef next;;) {
-        if (JSValueIsNull(context, next))
-            break;
-        last = curr;
-        curr = CYCastJSObject(context, next);
-      next:
-        next = JSObjectGetPrototype(context, curr);
-    }
+        goto next; for (JSValueRef next;;) {
+            if (JSValueIsNull(context, next))
+                break;
+            last = curr;
+            curr = CYCastJSObject(context, next);
+          next:
+            next = JSObjectGetPrototype(context, curr);
+        }
 
-    JSObjectSetPrototype(context, last, all);
+        JSObjectSetPrototype(context, last, all);
+    }
 
-    CYSetProperty(context, global, CYJSString("$cyq"), &$cyq);
+    CYSetProperty(context, global, CYJSString("$cyq"), &$cyq, kJSPropertyAttributeDontEnum);
 
     JSObjectRef System(JSObjectMake(context, NULL, NULL));
-    CYSetProperty(context, cy, CYJSString("System"), Function);
+    CYSetProperty(context, cy, CYJSString("System"), System);
 
     CYSetProperty(context, global, CYJSString("system"), System);
     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));