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00f93bc287
Markdown files in the docs/ directory can now be annotated to turn
fenced C code blocks into unit tests. The recognized syntax is:
[doctest]: # (name="test.c", test="run")
```c
// unit test code
```
The commit also fixes the issues revealed during the initial
annotation.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
1.2 KiB
1.2 KiB
Autorelease values
JERRYX_AR_VALUE_T
Summary
Macro for const jerry_value_t for which jerry_release_value() is
automatically called when the variable goes out of scope.
Note: The macro depends on compiler support. For GCC and LLVM/clang, the macro is implemented
using the __cleanup__ variable attribute. For other compilers, no support has been added yet.
Example
#include "jerryscript.h"
#include "jerryscript-ext/autorelease.h"
static void
foo (bool enable)
{
JERRYX_AR_VALUE_T bar = jerry_create_string ((const jerry_char_t *) "...");
if (enable)
{
JERRYX_AR_VALUE_T baz = jerry_get_global_object ();
/* bar and baz can now be used. */
/*
* jerry_release_value (baz) and jerry_release_value (bar) is called automatically before
* returning, because `baz` and `bar` go out of scope.
*/
return;
}
/*
* jerry_release_value (bar) is called automatically when the function returns,
* because `bar` goes out of scope.
*/
}
See also