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modules: add ability to clear cache (#2300)

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This adds the ability to remove a single module from the cache, or to
clear the entire module cache.

JerryScript-DCO-1.0-Signed-off-by: Gabriel Schulhof gabriel.schulhof@intel.com
This commit is contained in:
Gabriel "_|Nix|_" Schulhof
2018-05-03 21:12:17 -04:00
committed by yichoi
parent 369447aa09
commit 6dc2764a94
4 changed files with 186 additions and 62 deletions
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tests/unit-ext/module/jerry-module-test.c
+47 -4
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@@ -60,6 +60,24 @@ const char eval_string5[] =
" return x === y ? 1 : 0;"
"}) ();";
/* Make sure the result of a module load is removed from the cache. */
const char eval_string6[] =
"(function() {"
" var x = require('cache-check');"
" clear_require_cache('cache-check');"
" var y = require('cache-check');"
" return x !== y ? 1 : 0;"
"}) ();";
/* Make sure the entire cache is cleared. */
const char eval_string7[] =
"(function() {"
" var x = require('cache-check');"
" clear_require_cache(undefined);"
" var y = require('cache-check');"
" return x !== y ? 1 : 0;"
"}) ();";
/*
* Define a resolver for a module named "differently-handled-module" to check that custom resolvers work.
*/
@@ -119,6 +137,22 @@ static const jerryx_module_resolver_t *resolvers[3] =
&cache_check_resolver
};
static jerry_value_t
handle_clear_require_cache (const jerry_value_t js_function,
const jerry_value_t this_val,
const jerry_value_t args_p[],
const jerry_length_t args_count)
{
(void) js_function;
(void) this_val;
(void) args_count;
TEST_ASSERT (args_count == 1);
jerryx_module_clear_cache (args_p[0], resolvers, 3);
return 0;
} /* handle_clear_require_cache */
static jerry_value_t
handle_require (const jerry_value_t js_function,
const jerry_value_t this_val,
@@ -172,19 +206,28 @@ main (int argc, char **argv)
jerry_init (JERRY_INIT_EMPTY);
js_global = jerry_get_global_object ();
js_function = jerry_create_external_function (handle_require);
js_property_name = jerry_create_string ((const jerry_char_t *) "require");
jerry_set_property (js_global, js_property_name, js_function);
jerry_release_value (js_property_name);
jerry_release_value (js_function);
js_function = jerry_create_external_function (handle_clear_require_cache);
js_property_name = jerry_create_string ((const jerry_char_t *) "clear_require_cache");
jerry_set_property (js_global, js_property_name, js_function);
jerry_release_value (js_property_name);
jerry_release_value (js_function);
jerry_release_value (js_global);
eval_one (eval_string1, 42);
eval_one (eval_string2, 29);
eval_one (eval_string3, 1);
eval_one (eval_string4, 1);
eval_one (eval_string5, 1);
jerry_release_value (js_property_name);
jerry_release_value (js_function);
jerry_release_value (js_global);
eval_one (eval_string6, 1);
eval_one (eval_string7, 1);
jerry_cleanup ();
} /* main */