github_mirrors/quickjs
3
0
Fork 1
mirror of https://github.com/bellard/quickjs.git synced 2025-09-30 15:04:24 +03:00
Code Issues Packages Projects Releases Wiki Activity

added JS_PrintValue() and use it in console.log(), print() and the REPL (#256)

Browse Source
This commit is contained in:
Fabrice Bellard
2025-04-30 13:40:15 +02:00
parent 30fe3de91d
commit be06b3e92b
5 changed files with 752 additions and 440 deletions
Download Patch File Download Diff File Expand all files Collapse all files

149
repl.js
View File

@@ -875,126 +875,19 @@ import * as os from "os";
}
var hex_mode = false;
var eval_mode = "std";
function number_to_string(a, radix) {
function number_to_string_hex(a) {
var s;
if (!isFinite(a)) {
/* NaN, Infinite */
return a.toString();
if (a < 0) {
a = -a;
s = "-";
} else {
if (a == 0) {
if (1 / a < 0)
s = "-0";
else
s = "0";
} else {
if (radix == 16 && a === Math.floor(a)) {
var s;
if (a < 0) {
a = -a;
s = "-";
} else {
s = "";
}
s += "0x" + a.toString(16);
} else {
s = a.toString();
}
}
return s;
s = "";
}
}
function bigint_to_string(a, radix) {
var s;
if (radix == 16) {
var s;
if (a < 0) {
a = -a;
s = "-";
} else {
s = "";
}
s += "0x" + a.toString(16);
} else {
s = a.toString();
}
if (eval_mode === "std")
s += "n";
s += "0x" + a.toString(16);
return s;
}
function print(a) {
var stack = [];
function print_rec(a) {
var n, i, keys, key, type, s;
type = typeof(a);
if (type === "object") {
if (a === null) {
std.puts(a);
} else if (stack.indexOf(a) >= 0) {
std.puts("[circular]");
} else if (a instanceof Date) {
std.puts("Date " + a.toGMTString().__quote());
} else {
stack.push(a);
if (Array.isArray(a)) {
n = a.length;
std.puts("[ ");
for(i = 0; i < n; i++) {
if (i !== 0)
std.puts(", ");
if (i in a) {
print_rec(a[i]);
} else {
std.puts("<empty>");
}
if (i > 20) {
std.puts("...");
break;
}
}
std.puts(" ]");
} else if (Object.__getClass(a) === "RegExp") {
std.puts(a.toString());
} else {
keys = Object.keys(a);
n = keys.length;
std.puts("{ ");
for(i = 0; i < n; i++) {
if (i !== 0)
std.puts(", ");
key = keys[i];
std.puts(key, ": ");
print_rec(a[key]);
}
std.puts(" }");
}
stack.pop(a);
}
} else if (type === "string") {
s = a.__quote();
if (s.length > 79)
s = s.substring(0, 75) + "...\"";
std.puts(s);
} else if (type === "number") {
std.puts(number_to_string(a, hex_mode ? 16 : 10));
} else if (type === "bigint") {
std.puts(bigint_to_string(a, hex_mode ? 16 : 10));
} else if (type === "symbol") {
std.puts(String(a));
} else if (type === "function") {
std.puts("function " + a.name + "()");
} else {
std.puts(a);
}
}
print_rec(a);
}
function extract_directive(a) {
var pos;
if (a[0] !== '\\')
@@ -1116,10 +1009,25 @@ import * as os from "os";
}
function print_eval_result(result) {
var default_print = true;
result = result.value;
eval_time = os.now() - eval_start_time;
std.puts(colors[styles.result]);
print(result);
if (hex_mode) {
if (typeof result == "number" &&
result === Math.floor(result)) {
std.puts(number_to_string_hex(result));
default_print = false;
} else if (typeof result == "bigint") {
std.puts(number_to_string_hex(result));
std.puts("n");
default_print = false;
}
}
if (default_print) {
std.__printObject(result);
}
std.puts("\n");
std.puts(colors.none);
/* set the last result */
@@ -1130,15 +1038,10 @@ import * as os from "os";
function print_eval_error(error) {
std.puts(colors[styles.error_msg]);
if (error instanceof Error) {
console.log(error);
if (error.stack) {
std.puts(error.stack);
}
} else {
if (!(error instanceof Error))
std.puts("Throw: ");
console.log(error);
}
std.__printObject(error);
std.puts("\n");
std.puts(colors.none);
handle_cmd_end();