Try a new (safer) mechanism to get object private.

[cycript.git] / Syntax.cpp

diff --git a/Syntax.cpp b/Syntax.cpp
index 9fa307440de014ace9fc228efb4380bb8575b459..c5681029cac2e2ce02a070b80e89aacb5dd9c7e7 100644 (file)
--- a/Syntax.cpp
+++ b/Syntax.cpp
@@ -1,5 +1,5 @@
-/* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2015  Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016  Jay Freeman (saurik)
 */
 
 /* GNU Affero General Public License, Version 3 {{{ */
@@ -24,6 +24,7 @@
 
 #include "Syntax.hpp"
 
+// XXX: this implementation will break if value[size] is a digit
 double CYCastDouble(const char *value, size_t size) {
     char *end;
     double number(strtod(value, &end));
@@ -36,9 +37,71 @@ double CYCastDouble(const char *value) {
     return CYCastDouble(value, strlen(value));
 }
 
+double CYCastDouble(CYUTF8String value) {
+    return CYCastDouble(value.data, value.size);
+}
+
 template <>
 ::pthread_key_t CYLocal<CYPool>::key_ = Key_();
 
 CYRange DigitRange_    (0x3ff000000000000LLU, 0x000000000000000LLU); // 0-9
 CYRange WordStartRange_(0x000001000000000LLU, 0x7fffffe87fffffeLLU); // A-Za-z_$
 CYRange WordEndRange_  (0x3ff001000000000LLU, 0x7fffffe87fffffeLLU); // A-Za-z_$0-9
+
+
+
+// XXX: this really should not be here ... :/
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "String.hpp"
+
+struct CYFile {
+    void *data_;
+    size_t size_;
+
+    CYFile(void *data, size_t size) :
+        data_(data),
+        size_(size)
+    {
+    }
+};
+
+static void CYFileExit(void *data) {
+    CYFile *file(reinterpret_cast<CYFile *>(data));
+    _syscall(munmap(file->data_, file->size_));
+}
+
+void *CYPoolFile(CYPool &pool, const char *path, size_t *psize) {
+    int fd(_syscall_(open(path, O_RDONLY), 1, ENOENT));
+    if (fd == -1)
+        return NULL;
+
+    struct stat stat;
+    _syscall(fstat(fd, &stat));
+    size_t size(stat.st_size);
+
+    *psize = size;
+
+    void *base;
+    if (size == 0)
+        base = pool.strndup("", 0);
+    else {
+        _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
+
+        CYFile *file(new (pool) CYFile(base, size));
+        pool.atexit(&CYFileExit, file);
+    }
+
+    _syscall(close(fd));
+    return base;
+}
+
+CYUTF8String CYPoolFileUTF8String(CYPool &pool, const char *path) {
+    CYUTF8String data;
+    data.data = reinterpret_cast<char *>(CYPoolFile(pool, path, &data.size));
+    return data;
+}