jerryscript/tests/unit-core/test-snapshot.c
Zoltan Herczeg 7b226f53e0
Rework snapshot generation API. (#2259)
Also remove eval context support. It provides no practical advantage.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
2018-04-05 13:43:55 +02:00

421 lines
16 KiB
C

/* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "jerryscript.h"
#include "test-common.h"
/**
* Maximum size of snapshots buffer
*/
#define SNAPSHOT_BUFFER_SIZE (256)
/**
* Magic strings
*/
static const jerry_char_ptr_t magic_strings[] =
{
(const jerry_char_ptr_t) " ",
(const jerry_char_ptr_t) "a",
(const jerry_char_ptr_t) "b",
(const jerry_char_ptr_t) "c",
(const jerry_char_ptr_t) "from",
(const jerry_char_ptr_t) "func",
(const jerry_char_ptr_t) "string",
(const jerry_char_ptr_t) "snapshot"
};
/**
* Magic string lengths
*/
static const jerry_length_t magic_string_lengths[] =
{
1, 1, 1, 1, 4, 4, 6, 8
};
static void test_function_snapshot (void)
{
/* function to snapshot */
if (!jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE)
|| !jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_EXEC))
{
return;
}
const jerry_init_flag_t flags = JERRY_INIT_EMPTY;
static uint32_t function_snapshot_buffer[SNAPSHOT_BUFFER_SIZE];
const char *args_p = "a, b";
const char *code_to_snapshot_p = "return a + b";
jerry_init (flags);
jerry_value_t generate_result;
generate_result = jerry_generate_function_snapshot (NULL,
0,
(const jerry_char_t *) code_to_snapshot_p,
strlen (code_to_snapshot_p),
(jerry_char_t *) args_p,
strlen (args_p),
0,
function_snapshot_buffer,
SNAPSHOT_BUFFER_SIZE);
TEST_ASSERT (!jerry_value_has_error_flag (generate_result)
&& jerry_value_is_number (generate_result));
size_t function_snapshot_size = (size_t) jerry_get_number_value (generate_result);
jerry_release_value (generate_result);
jerry_cleanup ();
jerry_init (flags);
jerry_value_t function_obj = jerry_load_function_snapshot_at (function_snapshot_buffer,
function_snapshot_size,
0,
false);
TEST_ASSERT (!jerry_value_has_error_flag (function_obj));
TEST_ASSERT (jerry_value_is_function (function_obj));
jerry_value_t this_val = jerry_create_undefined ();
jerry_value_t args[2];
args[0] = jerry_create_number (1.0);
args[1] = jerry_create_number (2.0);
jerry_value_t res = jerry_call_function (function_obj, this_val, args, 2);
TEST_ASSERT (!jerry_value_has_error_flag (res));
TEST_ASSERT (jerry_value_is_number (res));
double num = jerry_get_number_value (res);
TEST_ASSERT (num == 3);
jerry_release_value (args[0]);
jerry_release_value (args[1]);
jerry_release_value (res);
jerry_release_value (function_obj);
jerry_cleanup ();
} /* test_function_snapshot */
static void arguments_test_exec_snapshot (uint32_t *snapshot_p, size_t snapshot_size, bool copy_bytecode)
{
jerry_init (JERRY_INIT_EMPTY);
jerry_value_t res = jerry_exec_snapshot (snapshot_p,
snapshot_size,
copy_bytecode);
TEST_ASSERT (!jerry_value_has_error_flag (res));
TEST_ASSERT (jerry_value_is_number (res));
double raw_value = jerry_get_number_value (res);
TEST_ASSERT (raw_value == 15);
jerry_release_value (res);
jerry_cleanup ();
} /* arguments_test_exec_snapshot */
static void test_function_arguments_snapshot (void)
{
if (jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE)
&& jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_EXEC))
{
static uint32_t arguments_snapshot_buffer[SNAPSHOT_BUFFER_SIZE];
const char *code_to_snapshot_p = ("function f(a,b,c) {"
" arguments[0]++;"
" arguments[1]++;"
" arguments[2]++;"
" return a + b + c;"
"}"
"f(3,4,5);");
jerry_init (JERRY_INIT_EMPTY);
jerry_value_t generate_result;
generate_result = jerry_generate_snapshot (NULL,
0,
(jerry_char_t *) code_to_snapshot_p,
strlen (code_to_snapshot_p),
0,
arguments_snapshot_buffer,
SNAPSHOT_BUFFER_SIZE);
TEST_ASSERT (!jerry_value_has_error_flag (generate_result)
&& jerry_value_is_number (generate_result));
size_t snapshot_size = (size_t) jerry_get_number_value (generate_result);
jerry_release_value (generate_result);
jerry_cleanup ();
arguments_test_exec_snapshot (arguments_snapshot_buffer, snapshot_size, false);
arguments_test_exec_snapshot (arguments_snapshot_buffer, snapshot_size, true);
}
} /* test_function_arguments_snapshot */
static void test_exec_snapshot (uint32_t *snapshot_p, size_t snapshot_size, bool copy_bytecode)
{
char string_data[32];
jerry_init (JERRY_INIT_EMPTY);
jerry_register_magic_strings (magic_strings,
sizeof (magic_string_lengths) / sizeof (jerry_length_t),
magic_string_lengths);
jerry_value_t res = jerry_exec_snapshot (snapshot_p,
snapshot_size,
copy_bytecode);
TEST_ASSERT (!jerry_value_has_error_flag (res));
TEST_ASSERT (jerry_value_is_string (res));
jerry_size_t sz = jerry_get_string_size (res);
TEST_ASSERT (sz == 20);
sz = jerry_string_to_char_buffer (res, (jerry_char_t *) string_data, sz);
TEST_ASSERT (sz == 20);
jerry_release_value (res);
TEST_ASSERT (!strncmp (string_data, "string from snapshot", (size_t) sz));
jerry_cleanup ();
} /* test_exec_snapshot */
int
main (void)
{
static uint32_t snapshot_buffer[SNAPSHOT_BUFFER_SIZE];
TEST_INIT ();
/* Dump / execute snapshot */
if (jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE)
&& jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_EXEC))
{
const char *code_to_snapshot_p = "(function () { return 'string from snapshot'; }) ();";
jerry_init (JERRY_INIT_EMPTY);
jerry_value_t generate_result;
generate_result = jerry_generate_snapshot (NULL,
0,
(const jerry_char_t *) code_to_snapshot_p,
strlen (code_to_snapshot_p),
0,
snapshot_buffer,
SNAPSHOT_BUFFER_SIZE);
TEST_ASSERT (!jerry_value_has_error_flag (generate_result)
&& jerry_value_is_number (generate_result));
size_t snapshot_size = (size_t) jerry_get_number_value (generate_result);
jerry_release_value (generate_result);
/* Check the snapshot data. Unused bytes should be filled with zeroes */
const uint8_t expected_data[] =
{
0x4A, 0x52, 0x52, 0x59, 0x0B, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00,
0x03, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
0x00, 0x00, 0x00, 0x01, 0x18, 0x00, 0x00, 0x00,
0x28, 0x00, 0xB7, 0x46, 0x00, 0x00, 0x00, 0x00,
0x03, 0x00, 0x01, 0x00, 0x41, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x01, 0x07, 0x00, 0x00, 0x00,
0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x14, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67,
0x20, 0x66, 0x72, 0x6F, 0x6D, 0x20, 0x73, 0x6E,
0x61, 0x70, 0x73, 0x68, 0x6F, 0x74
};
TEST_ASSERT (sizeof (expected_data) == snapshot_size);
TEST_ASSERT (0 == memcmp (expected_data, snapshot_buffer, sizeof (expected_data)));
jerry_cleanup ();
test_exec_snapshot (snapshot_buffer, snapshot_size, false);
test_exec_snapshot (snapshot_buffer, snapshot_size, true);
}
/* Static snapshot */
if (jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE)
&& jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_EXEC))
{
const char *code_to_snapshot_p = ("function func(a, b, c) {"
" c = 'snapshot';"
" return arguments[0] + ' ' + b + ' ' + arguments[2];"
"};"
"func('string', 'from');");
jerry_init (JERRY_INIT_EMPTY);
jerry_register_magic_strings (magic_strings,
sizeof (magic_string_lengths) / sizeof (jerry_length_t),
magic_string_lengths);
jerry_value_t generate_result;
generate_result = jerry_generate_snapshot (NULL,
0,
(jerry_char_t *) code_to_snapshot_p,
strlen (code_to_snapshot_p),
JERRY_SNAPSHOT_SAVE_STATIC,
snapshot_buffer,
SNAPSHOT_BUFFER_SIZE);
TEST_ASSERT (!jerry_value_has_error_flag (generate_result)
&& jerry_value_is_number (generate_result));
size_t snapshot_size = (size_t) jerry_get_number_value (generate_result);
jerry_release_value (generate_result);
jerry_cleanup ();
test_exec_snapshot (snapshot_buffer, snapshot_size, false);
}
/* Merge snapshot */
if (jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE)
&& jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_EXEC))
{
static uint32_t snapshot_buffer_0[SNAPSHOT_BUFFER_SIZE];
static uint32_t snapshot_buffer_1[SNAPSHOT_BUFFER_SIZE];
size_t snapshot_sizes[2];
static uint32_t merged_snapshot_buffer[SNAPSHOT_BUFFER_SIZE];
const char *code_to_snapshot_p = "123";
jerry_init (JERRY_INIT_EMPTY);
jerry_value_t generate_result;
generate_result = jerry_generate_snapshot (NULL,
0,
(const jerry_char_t *) code_to_snapshot_p,
strlen (code_to_snapshot_p),
0,
snapshot_buffer_0,
SNAPSHOT_BUFFER_SIZE);
TEST_ASSERT (!jerry_value_has_error_flag (generate_result)
&& jerry_value_is_number (generate_result));
snapshot_sizes[0] = (size_t) jerry_get_number_value (generate_result);
jerry_release_value (generate_result);
jerry_cleanup ();
code_to_snapshot_p = "456";
jerry_init (JERRY_INIT_EMPTY);
generate_result = jerry_generate_snapshot (NULL,
0,
(const jerry_char_t *) code_to_snapshot_p,
strlen (code_to_snapshot_p),
0,
snapshot_buffer_1,
SNAPSHOT_BUFFER_SIZE);
TEST_ASSERT (!jerry_value_has_error_flag (generate_result)
&& jerry_value_is_number (generate_result));
snapshot_sizes[1] = (size_t) jerry_get_number_value (generate_result);
jerry_release_value (generate_result);
jerry_cleanup ();
jerry_init (JERRY_INIT_EMPTY);
const char *error_p;
const uint32_t *snapshot_buffers[2];
snapshot_buffers[0] = snapshot_buffer_0;
snapshot_buffers[1] = snapshot_buffer_1;
size_t merged_size = jerry_merge_snapshots (snapshot_buffers,
snapshot_sizes,
2,
merged_snapshot_buffer,
SNAPSHOT_BUFFER_SIZE,
&error_p);
jerry_cleanup ();
jerry_init (JERRY_INIT_EMPTY);
jerry_value_t res = jerry_exec_snapshot_at (merged_snapshot_buffer, merged_size, 0, false);
TEST_ASSERT (!jerry_value_has_error_flag (res));
TEST_ASSERT (jerry_get_number_value (res) == 123);
jerry_release_value (res);
res = jerry_exec_snapshot_at (merged_snapshot_buffer, merged_size, 1, false);
TEST_ASSERT (!jerry_value_has_error_flag (res));
TEST_ASSERT (jerry_get_number_value (res) == 456);
jerry_release_value (res);
jerry_cleanup ();
}
/* Save literals */
if (jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE))
{
/* C format generation */
jerry_init (JERRY_INIT_EMPTY);
static uint32_t literal_buffer_c[SNAPSHOT_BUFFER_SIZE];
static const char *code_for_c_format_p = "var object = { aa:'fo o', Bb:'max', aaa:'xzy0' };";
size_t literal_sizes_c_format = jerry_parse_and_save_literals ((jerry_char_t *) code_for_c_format_p,
strlen (code_for_c_format_p),
false,
literal_buffer_c,
SNAPSHOT_BUFFER_SIZE,
true);
TEST_ASSERT (literal_sizes_c_format == 203);
static const char *expected_c_format = (
"jerry_length_t literal_count = 4;\n\n"
"jerry_char_ptr_t literals[4] =\n"
"{\n"
" \"Bb\",\n"
" \"aa\",\n"
" \"aaa\",\n"
" \"xzy0\"\n"
"};\n\n"
"jerry_length_t literal_sizes[4] =\n"
"{\n"
" 2 /* Bb */,\n"
" 2 /* aa */,\n"
" 3 /* aaa */,\n"
" 4 /* xzy0 */\n"
"};\n"
);
TEST_ASSERT (!strncmp ((char *) literal_buffer_c, expected_c_format, literal_sizes_c_format));
jerry_cleanup ();
/* List format generation */
jerry_init (JERRY_INIT_EMPTY);
static uint32_t literal_buffer_list[SNAPSHOT_BUFFER_SIZE];
static const char *code_for_list_format_p = "var obj = { a:'aa', bb:'Bb' };";
size_t literal_sizes_list_format = jerry_parse_and_save_literals ((jerry_char_t *) code_for_list_format_p,
strlen (code_for_list_format_p),
false,
literal_buffer_list,
SNAPSHOT_BUFFER_SIZE,
false);
TEST_ASSERT (literal_sizes_list_format == 25);
TEST_ASSERT (!strncmp ((char *) literal_buffer_list, "1 a\n2 Bb\n2 aa\n2 bb\n3 obj\n", literal_sizes_list_format));
jerry_cleanup ();
}
test_function_snapshot ();
test_function_arguments_snapshot ();
return 0;
} /* main */