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// Copyright (c) 2016-2017, Intel Corporation.
#ifdef BUILD_MODULE_CONSOLE
#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
#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
if (jerry_value_is_array(value)) {
uint32_t len = jerry_get_array_length(value);
sprintf(buf, "[Array - length %lu]", len);
return false;
}
else if (jerry_value_is_boolean(value)) {
uint8_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) {
#ifdef ZJS_PRINT_FLOATS
double num = jerry_get_number_value(value);
sprintf(buf, "%f", num);
#else
int32_t num = (int32_t)jerry_get_number_value(value);
sprintf(buf, "[Float ~%li]", num);
#endif
} else if (type == IS_UINT) {
uint32_t num = (uint32_t)jerry_get_number_value(value);
sprintf(buf, "%lu", num);
} else if (type == IS_INT) {
int32_t num = (int32_t)jerry_get_number_value(value);
// Linux and Zephyr print int32_t's differently if %li is used
#ifdef ZJS_LINUX_BUILD
sprintf(buf, "%i", num);
#else
sprintf(buf, "%li", num);
#endif
}
}
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)) {
jerry_size_t size = jerry_get_string_size(value);
if (size >= maxlen) {
sprintf(buf, "[String - length %lu]", size);
}
else {
char buffer[++size];
zjs_copy_jstring(value, buffer, &size);
if (quotes) {
sprintf(buf, "\"%s\"", buffer);
}
else {
sprintf(buf, "%s", buffer);
}
}
}
else if (jerry_value_is_undefined(value)) {
sprintf(buf, "undefined");
}
else {
// should never get this
sprintf(buf, "UNKNOWN");
}
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)) {
uint32_t len = jerry_get_array_length(value);
fprintf(out, "[");
for (int i = 0; i < len; i++) {
if (i) {
fprintf(out, ", ");
}
jerry_value_t element = jerry_get_property_by_index(value, i);
print_value(element, out, false, true);
jerry_release_value(element);
}
fprintf(out, "]");
}
}
else {
fprintf(out, "%s", buf);
}
}
static jerry_value_t do_print(const jerry_value_t function_obj,
const jerry_value_t this,
const jerry_value_t argv[],
const jerry_length_t argc,
FILE* out)
{
for (int i = 0; i < argc; i++) {
if (i) {
// insert spaces between arguments
fprintf(out, " ");
}
print_value(argv[i], out, true, false);
}
fprintf(out, "\n");
return ZJS_UNDEFINED;
}
static jerry_value_t console_log(const jerry_value_t function_obj,
const jerry_value_t this,
const jerry_value_t argv[],
const jerry_length_t argc)
{
return do_print(function_obj, this, argv, argc, stdout);
}
static jerry_value_t console_error(const jerry_value_t function_obj,
const jerry_value_t this,
const jerry_value_t argv[],
const jerry_length_t argc)
{
return do_print(function_obj, this, argv, argc, stderr);
}
static jerry_value_t console_time(const jerry_value_t function_obj,
const jerry_value_t this,
const jerry_value_t argv[],
const jerry_length_t argc)
{
if (argc < 1 || !jerry_value_is_string(argv[0])) {
return TYPE_ERROR("invalid argument");
}
uint32_t start = zjs_port_timer_get_uptime();
jerry_value_t num = jerry_create_number(start);
jerry_set_property(gbl_time_obj, argv[0], num);
jerry_release_value(num);
return ZJS_UNDEFINED;
}
static jerry_value_t console_time_end(const jerry_value_t function_obj,
const jerry_value_t this,
const jerry_value_t argv[],
const jerry_length_t argc)
{
if (argc < 1 || !jerry_value_is_string(argv[0])) {
return TYPE_ERROR("invalid argument");
}
jerry_value_t num = jerry_get_property(gbl_time_obj, argv[0]);
jerry_delete_property(gbl_time_obj, argv[0]);
if (!jerry_value_is_number(num)) {
jerry_release_value(num);
return TYPE_ERROR("unexpected value");
}
uint32_t start = (uint32_t)jerry_get_number_value(num);
uint32_t milli = zjs_port_timer_get_uptime() - start;
jerry_release_value(num);
char *label = zjs_alloc_from_jstring(argv[0], NULL);
const char *const_label = "unknown";
if (label) {
const_label = label;
}
ZJS_PRINT("%s: %lums\n", const_label, milli);
zjs_free(label);
return ZJS_UNDEFINED;
}
static jerry_value_t console_assert(const jerry_value_t function_obj,
const jerry_value_t this,
const jerry_value_t argv[],
const jerry_length_t argc)
{
char message[MAX_STR_LENGTH];
if (!jerry_value_is_boolean(argv[0])) {
return TYPE_ERROR("invalid parameter");
}
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);
} else {
return zjs_custom_error("AssertionError", "console.assert");
}
}
return ZJS_UNDEFINED;
}
void zjs_console_init(void)
{
jerry_value_t console = jerry_create_object();
zjs_obj_add_function(console, console_log, "log");
zjs_obj_add_function(console, console_log, "info");
zjs_obj_add_function(console, console_error, "error");
zjs_obj_add_function(console, console_error, "warn");
zjs_obj_add_function(console, console_time, "time");
zjs_obj_add_function(console, console_time_end, "timeEnd");
zjs_obj_add_function(console, console_assert, "assert");
jerry_value_t global_obj = jerry_get_global_object();
zjs_set_property(global_obj, "console", console);
jerry_release_value(console);
jerry_release_value(global_obj);
// initialize the time object
gbl_time_obj = jerry_create_object();
}
void zjs_console_cleanup()
{
jerry_release_value(gbl_time_obj);
}
#endif // BUILD_MODULE_CONSOLE
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