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Rework the public API (#4829)

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Related to #4186.

Some notable changes:
  - The term 'Error' now strictly refers to native Error objects defined in
    the ECMA standard, which are ordinary objects. All other uses of
    'error' or 'error reference' where the term refers to a thrown value is
    now called 'exception'.

  - Simplified the naming scheme of many String API functions. These functions
    will now also take an 'encoding' argument to specify the desired
    encoding in which to operate.

  - Removed the substring-copy-to-buffer functions. These functions
    behaved awkwardly, as they use character index to specify the
    start/end positions, and were mostly used incorrectly with byte
    offsets instead. The functionality can still be replicated with
    other functions if necessary.

  - String-to-buffer functions will no longer fail if the buffer is not
    sufficiently large, the string will instead be cropped.

  - Fixed the usage of the '_sz' prefix in many API functions. The term
    'sz' means zero-terminated string in hungarian notation, this was
    used incorrectly in many cases.

  - Renamed most of the public API functions to have shorter, more on-point
    names, rather than the often too long descriptive names. Functions are now
    also grouped by the type of value they operate on, where this makes
    sense.

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
This commit is contained in:
Dániel Bátyai
2021-12-06 10:20:09 +01:00
committed by GitHub
parent 81d2319144
commit 9860d66a56
180 changed files with 10738 additions and 11025 deletions
Download Patch File Download Diff File Expand all files Collapse all files
targets/nuttx-stm32f4/jerry_main.c
+114 -133
View File
@@ -15,13 +15,14 @@
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <string.h>
#include "jerryscript-port.h"
#include "jerryscript.h"
#include "jerryscript-ext/debugger.h"
#include "jerryscript-ext/handler.h"
#include "jerryscript-port.h"
#include "setjmp.h"
/**
@@ -111,7 +112,7 @@ read_file (const char *file_name, /**< source code */
if (!bytes_read || bytes_read != script_len)
{
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: failed to read file: %s\n", file_name);
free ((void*) buffer);
free ((void *) buffer);
fclose (file);
return NULL;
@@ -132,7 +133,7 @@ static uint32_t
str_to_uint (const char *num_str_p, /**< string to convert */
char **out_p) /**< [out] end of the number */
{
assert (jerry_is_feature_enabled (JERRY_FEATURE_ERROR_MESSAGES));
assert (jerry_feature_enabled (JERRY_FEATURE_ERROR_MESSAGES));
uint32_t result = 0;
@@ -157,124 +158,111 @@ str_to_uint (const char *num_str_p, /**< string to convert */
static void
print_unhandled_exception (jerry_value_t error_value) /**< error value */
{
assert (jerry_value_is_error (error_value));
assert (jerry_value_is_exception (error_value));
error_value = jerry_get_value_from_error (error_value, false);
error_value = jerry_exception_value (error_value, false);
jerry_value_t err_str_val = jerry_value_to_string (error_value);
jerry_size_t err_str_size = jerry_get_utf8_string_size (err_str_val);
jerry_char_t err_str_buf[256];
jerry_release_value (error_value);
jerry_value_free (error_value);
if (err_str_size >= 256)
{
const char msg[] = "[Error message too long]";
err_str_size = sizeof (msg) / sizeof (char) - 1;
memcpy (err_str_buf, msg, err_str_size);
}
else
{
jerry_size_t sz = jerry_string_to_utf8_char_buffer (err_str_val, err_str_buf, err_str_size);
assert (sz == err_str_size);
err_str_buf[err_str_size] = 0;
jerry_size_t sz = jerry_string_to_buffer (err_str_val, JERRY_ENCODING_UTF8, err_str_buf, sizeof (err_str_buf) - 1);
err_str_buf[sz] = '\0';
if (jerry_is_feature_enabled (JERRY_FEATURE_ERROR_MESSAGES)
&& jerry_get_error_type (error_value) == JERRY_ERROR_SYNTAX)
if (jerry_feature_enabled (JERRY_FEATURE_ERROR_MESSAGES) && jerry_error_type (error_value) == JERRY_ERROR_SYNTAX)
{
jerry_char_t *string_end_p = err_str_buf + sz;
uint32_t err_line = 0;
uint32_t err_col = 0;
char *path_str_p = NULL;
char *path_str_end_p = NULL;
/* 1. parse column and line information */
for (jerry_char_t *current_p = err_str_buf; current_p < string_end_p; current_p++)
{
jerry_char_t *string_end_p = err_str_buf + sz;
uint32_t err_line = 0;
uint32_t err_col = 0;
char *path_str_p = NULL;
char *path_str_end_p = NULL;
/* 1. parse column and line information */
for (jerry_char_t *current_p = err_str_buf; current_p < string_end_p; current_p++)
if (*current_p == '[')
{
if (*current_p == '[')
current_p++;
if (*current_p == '<')
{
current_p++;
if (*current_p == '<')
{
break;
}
path_str_p = (char *) current_p;
while (current_p < string_end_p && *current_p != ':')
{
current_p++;
}
path_str_end_p = (char *) current_p++;
err_line = str_to_uint ((char *) current_p, (char **) &current_p);
current_p++;
err_col = str_to_uint ((char *) current_p, NULL);
break;
}
} /* for */
if (err_line != 0 && err_col != 0)
{
uint32_t curr_line = 1;
bool is_printing_context = false;
uint32_t pos = 0;
/* Temporarily modify the error message, so we can use the path. */
*path_str_end_p = '\0';
size_t source_size;
const jerry_char_t *source_p = read_file (path_str_p, &source_size);
/* Revert the error message. */
*path_str_end_p = ':';
/* 2. seek and print */
while (source_p[pos] != '\0')
path_str_p = (char *) current_p;
while (current_p < string_end_p && *current_p != ':')
{
if (source_p[pos] == '\n')
{
curr_line++;
}
if (err_line < SYNTAX_ERROR_CONTEXT_SIZE
|| (err_line >= curr_line
&& (err_line - curr_line) <= SYNTAX_ERROR_CONTEXT_SIZE))
{
/* context must be printed */
is_printing_context = true;
}
if (curr_line > err_line)
{
break;
}
if (is_printing_context)
{
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "%c", source_p[pos]);
}
pos++;
current_p++;
}
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "\n");
path_str_end_p = (char *) current_p++;
while (--err_col)
{
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "~");
}
err_line = str_to_uint ((char *) current_p, (char **) &current_p);
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "^\n");
current_p++;
err_col = str_to_uint ((char *) current_p, NULL);
break;
}
} /* for */
if (err_line != 0 && err_col != 0)
{
uint32_t curr_line = 1;
bool is_printing_context = false;
uint32_t pos = 0;
/* Temporarily modify the error message, so we can use the path. */
*path_str_end_p = '\0';
size_t source_size;
const jerry_char_t *source_p = read_file (path_str_p, &source_size);
/* Revert the error message. */
*path_str_end_p = ':';
/* 2. seek and print */
while (source_p[pos] != '\0')
{
if (source_p[pos] == '\n')
{
curr_line++;
}
if (err_line < SYNTAX_ERROR_CONTEXT_SIZE
|| (err_line >= curr_line && (err_line - curr_line) <= SYNTAX_ERROR_CONTEXT_SIZE))
{
/* context must be printed */
is_printing_context = true;
}
if (curr_line > err_line)
{
break;
}
if (is_printing_context)
{
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "%c", source_p[pos]);
}
pos++;
}
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "\n");
while (--err_col)
{
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "~");
}
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "^\n");
}
}
jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Script Error: %s\n", err_str_buf);
jerry_release_value (err_str_val);
jerry_value_free (err_str_val);
} /* print_unhandled_exception */
/**
@@ -284,26 +272,27 @@ static void
register_js_function (const char *name_p, /**< name of the function */
jerry_external_handler_t handler_p) /**< function callback */
{
jerry_value_t result_val = jerryx_handler_register_global ((const jerry_char_t *) name_p, handler_p);
jerry_value_t result_val = jerryx_handler_register_global (name_p, handler_p);
if (jerry_value_is_error (result_val))
if (jerry_value_is_exception (result_val))
{
jerry_port_log (JERRY_LOG_LEVEL_WARNING, "Warning: failed to register '%s' method.", name_p);
}
jerry_release_value (result_val);
jerry_value_free (result_val);
} /* register_js_function */
/**
* Main program.
*
* @return 0 if success, error code otherwise
*/
#ifdef CONFIG_BUILD_KERNEL
int main (int argc, FAR char *argv[])
int
main (int argc, FAR char *argv[])
#else /* !defined(CONFIG_BUILD_KERNEL) */
int jerry_main (int argc, char *argv[])
int
jerry_main (int argc, char *argv[])
#endif /* defined(CONFIG_BUILD_KERNEL) */
{
if (argc > JERRY_MAX_COMMAND_LINE_ARGS)
@@ -335,11 +324,6 @@ int jerry_main (int argc, char *argv[])
flags |= JERRY_INIT_MEM_STATS;
set_log_level (JERRY_LOG_LEVEL_DEBUG);
}
else if (!strcmp ("--mem-stats-separate", argv[i]))
{
flags |= JERRY_INIT_MEM_STATS_SEPARATE;
set_log_level (JERRY_LOG_LEVEL_DEBUG);
}
else if (!strcmp ("--show-opcodes", argv[i]))
{
flags |= JERRY_INIT_SHOW_OPCODES | JERRY_INIT_SHOW_REGEXP_OPCODES;
@@ -347,7 +331,7 @@ int jerry_main (int argc, char *argv[])
}
else if (!strcmp ("--log-level", argv[i]))
{
if (++i < argc && strlen (argv[i]) == 1 && argv[i][0] >='0' && argv[i][0] <= '3')
if (++i < argc && strlen (argv[i]) == 1 && argv[i][0] >= '0' && argv[i][0] <= '3')
{
set_log_level (argv[i][0] - '0');
}
@@ -383,15 +367,14 @@ int jerry_main (int argc, char *argv[])
if (start_debug_server)
{
jerryx_debugger_after_connect (jerryx_debugger_tcp_create (debug_port)
&& jerryx_debugger_ws_create ());
jerryx_debugger_after_connect (jerryx_debugger_tcp_create (debug_port) && jerryx_debugger_ws_create ());
}
register_js_function ("assert", jerryx_handler_assert);
register_js_function ("gc", jerryx_handler_gc);
register_js_function ("print", jerryx_handler_print);
jerry_value_t ret_value = jerry_create_undefined ();
jerry_value_t ret_value = jerry_undefined ();
if (files_counter == 0)
{
@@ -400,7 +383,7 @@ int jerry_main (int argc, char *argv[])
ret_value = jerry_parse (script, sizeof (script) - 1, NULL);
if (!jerry_value_is_error (ret_value))
if (!jerry_value_is_exception (ret_value))
{
ret_value = jerry_run (ret_value);
}
@@ -419,50 +402,48 @@ int jerry_main (int argc, char *argv[])
}
jerry_parse_options_t parse_options;
parse_options.options = JERRY_PARSE_HAS_RESOURCE;
parse_options.resource_name = jerry_create_string ((const jerry_char_t *) file_names[i]);
parse_options.options = JERRY_PARSE_HAS_SOURCE_NAME;
parse_options.source_name = jerry_string_sz (file_names[i]);
ret_value = jerry_parse (source_p,
source_size,
&parse_options);
jerry_release_value (parse_options.resource_name);
free ((void*) source_p);
ret_value = jerry_parse (source_p, source_size, &parse_options);
jerry_value_free (parse_options.source_name);
free ((void *) source_p);
if (!jerry_value_is_error (ret_value))
if (!jerry_value_is_exception (ret_value))
{
jerry_value_t func_val = ret_value;
ret_value = jerry_run (func_val);
jerry_release_value (func_val);
jerry_value_free (func_val);
}
if (jerry_value_is_error (ret_value))
if (jerry_value_is_exception (ret_value))
{
print_unhandled_exception (ret_value);
break;
}
jerry_release_value (ret_value);
ret_value = jerry_create_undefined ();
jerry_value_free (ret_value);
ret_value = jerry_undefined ();
}
}
int ret_code = JERRY_STANDALONE_EXIT_CODE_OK;
if (jerry_value_is_error (ret_value))
if (jerry_value_is_exception (ret_value))
{
ret_code = JERRY_STANDALONE_EXIT_CODE_FAIL;
}
jerry_release_value (ret_value);
jerry_value_free (ret_value);
ret_value = jerry_run_all_enqueued_jobs ();
ret_value = jerry_run_jobs ();
if (jerry_value_is_error (ret_value))
if (jerry_value_is_exception (ret_value))
{
ret_code = JERRY_STANDALONE_EXIT_CODE_FAIL;
}
jerry_release_value (ret_value);
jerry_value_free (ret_value);
jerry_cleanup ();
return ret_code;