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// Copyright (c) 2016-2018, Intel Corporation.
#ifdef BUILD_MODULE_CONSOLE
// ZJS includes
#include "zjs_common.h"
#include "zjs_error.h"
#include "zjs_util.h"
#ifdef ZJS_LINUX_BUILD
#include "zjs_linux_port.h"
#else
#include "zjs_zephyr_port.h"
#endif
#ifdef JERRY_DEBUGGER
#include "debugger.h"
#endif
#define MAX_STR_LENGTH 256
#ifdef ZJS_LINUX_BUILD
#define STDERR_PRINT(s, ...) fprintf(stderr, s, __VA_ARGS__)
#define STDOUT_PRINT(s, ...) fprintf(stdout, s, __VA_ARGS__)
#else
#define STDERR_PRINT(s, ...) ZJS_PRINT(s, __VA_ARGS__)
#define STDOUT_PRINT(s, ...) ZJS_PRINT(s, __VA_ARGS__)
#endif
#define IS_NUMBER 0
#define IS_INT 1
#define IS_UINT 2
static jerry_value_t gbl_time_obj;
static int is_int(jerry_value_t val)
{
int ret = 0;
double n = jerry_get_number_value(val);
ret = (n - (int)n == 0);
if (ret) {
// Integer type
if (n < 0) {
return IS_INT;
} else {
return IS_UINT;
}
} else {
return IS_NUMBER;
}
}
static bool value2str(const jerry_value_t value, char *buf, int maxlen,
bool quotes)
{
// requires: buf has at least maxlen characters
// effects: writes a string representation of the value to buf; when
// processing a string value, puts quotes around it if quotes
// is true
// returns: true if the representation was complete or false if it
// was abbreviated
ZVAL_MUTABLE str_val = ZJS_UNDEFINED;
bool is_string = false;
if (jerry_value_is_array(value)) {
u32_t len = jerry_get_array_length(value);
sprintf(buf, "[Array - length %u]", len);
return false;
} else if (jerry_value_is_boolean(value)) {
u8_t val = jerry_get_boolean_value(value);
sprintf(buf, (val) ? "true" : "false");
} else if (jerry_value_is_function(value)) {
sprintf(buf, "[Function]");
} else if (jerry_value_is_number(value)) {
int type = is_int(value);
if (type == IS_NUMBER) {
str_val = jerry_value_to_string(value);
is_string = true;
} else if (type == IS_UINT) {
unsigned int num = jerry_get_number_value(value);
sprintf(buf, "%u", num);
} else if (type == IS_INT) {
int num = jerry_get_number_value(value);
sprintf(buf, "%d", num);
}
} else if (jerry_value_is_null(value)) {
sprintf(buf, "null");
}
// NOTE: important that checks for function and array were above this
else if (jerry_value_is_object(value)) {
sprintf(buf, "[Object]");
} else if (jerry_value_is_string(value)) {
str_val = jerry_value_to_string(value);
is_string = true;
} else if (jerry_value_is_undefined(value)) {
sprintf(buf, "undefined");
} else {
// should never get this
sprintf(buf, "UNKNOWN");
}
if (is_string) {
jerry_size_t size = jerry_get_string_size(str_val);
if (size >= maxlen) {
sprintf(buf, "[String - length %u]", (unsigned int)size);
} else {
char buffer[++size];
zjs_copy_jstring(str_val, buffer, &size);
if (quotes) {
sprintf(buf, "\"%s\"", buffer);
} else {
sprintf(buf, "%s", buffer);
}
}
}
return true;
}
static void print_value(const jerry_value_t value, FILE *out, bool deep,
bool quotes)
{
char buf[MAX_STR_LENGTH];
if (!value2str(value, buf, MAX_STR_LENGTH, quotes) && deep) {
if (jerry_value_is_array(value)) {
u32_t len = jerry_get_array_length(value);
#ifdef JERRY_DEBUGGER
jerry_debugger_send_output((jerry_char_t *)"[", 1, JERRY_DEBUGGER_OUTPUT_OK);
#endif
fprintf(out, "[");
for (int i = 0; i < len; i++) {
if (i) {
#ifdef JERRY_DEBUGGER
jerry_debugger_send_output((jerry_char_t *)", ", 2, JERRY_DEBUGGER_OUTPUT_OK);
#endif
fprintf(out, ", ");
}
ZVAL element = jerry_get_property_by_index(value, i);
print_value(element, out, false, true);
}
#ifdef JERRY_DEBUGGER
jerry_debugger_send_output((jerry_char_t *)"]", 1, JERRY_DEBUGGER_OUTPUT_OK);
#endif
fprintf(out, "]");
}
} else {
#ifdef JERRY_DEBUGGER
jerry_debugger_send_output((jerry_char_t *)buf, strlen(buf), JERRY_DEBUGGER_OUTPUT_OK);
#endif
fprintf(out, "%s", buf);
}
}
static ZJS_DECL_FUNC_ARGS(do_print, FILE *out)
{
for (int i = 0; i < argc; i++) {
if (i) {
// insert spaces between arguments
#ifdef JERRY_DEBUGGER
jerry_debugger_send_output((jerry_char_t *)" ", 1, JERRY_DEBUGGER_OUTPUT_OK);
#endif
fprintf(out, " ");
}
print_value(argv[i], out, true, false);
}
fprintf(out, "\n");
return ZJS_UNDEFINED;
}
static ZJS_DECL_FUNC(console_log)
{
return ZJS_CHAIN_FUNC_ARGS(do_print, stdout);
}
static ZJS_DECL_FUNC(console_error)
{
return ZJS_CHAIN_FUNC_ARGS(do_print, stderr);
}
static ZJS_DECL_FUNC(console_time)
{
// args: label
ZJS_VALIDATE_ARGS(Z_STRING);
u32_t start = zjs_port_timer_get_uptime();
ZVAL num = jerry_create_number(start);
jerry_set_property(gbl_time_obj, argv[0], num);
return ZJS_UNDEFINED;
}
static ZJS_DECL_FUNC(console_time_end)
{
// args: label
ZJS_VALIDATE_ARGS(Z_STRING);
ZVAL num = jerry_get_property(gbl_time_obj, argv[0]);
jerry_delete_property(gbl_time_obj, argv[0]);
if (!jerry_value_is_number(num)) {
return TYPE_ERROR("unexpected value");
}
u32_t start = (u32_t)jerry_get_number_value(num);
unsigned int milli = zjs_port_timer_get_uptime() - start;
char *label = zjs_alloc_from_jstring(argv[0], NULL);
const char *const_label = "unknown";
if (label) {
const_label = label;
}
// this print is part of the expected behavior for the user, don't remove
ZJS_PRINT("%s: %ums\n", const_label, milli);
zjs_free(label);
return ZJS_UNDEFINED;
}
static ZJS_DECL_FUNC(console_assert)
{
// args: validity[, output]
ZJS_VALIDATE_ARGS(Z_BOOL, Z_OPTIONAL Z_ANY);
char message[MAX_STR_LENGTH];
bool b = jerry_get_boolean_value(argv[0]);
if (!b) {
if (argc > 1) {
value2str(argv[1], message, MAX_STR_LENGTH, false);
return zjs_custom_error("AssertionError", message, this,
function_obj);
} else {
return zjs_custom_error("AssertionError", "console.assert", this,
function_obj);
}
}
return ZJS_UNDEFINED;
}
void zjs_console_init(void)
{
ZVAL console = zjs_create_object();
zjs_obj_add_function(console, "log", console_log);
zjs_obj_add_function(console, "info", console_log);
zjs_obj_add_function(console, "error", console_error);
zjs_obj_add_function(console, "warn", console_error);
zjs_obj_add_function(console, "time", console_time);
zjs_obj_add_function(console, "timeEnd", console_time_end);
zjs_obj_add_function(console, "assert", console_assert);
ZVAL global_obj = jerry_get_global_object();
zjs_set_property(global_obj, "console", console);
// initialize the time object
gbl_time_obj = zjs_create_object();
}
void zjs_console_cleanup()
{
jerry_release_value(gbl_time_obj);
}
#endif // BUILD_MODULE_CONSOLE
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