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more bignum cleanup

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Fabrice Bellard
2025-03-19 11:43:31 +01:00
parent 96e7965cf4
commit 6de88859e7
9 changed files with 14 additions and 890 deletions
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206
repl.js
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@@ -41,11 +41,6 @@ import * as os from "os";
var isFinite = g.isFinite;
var parseFloat = g.parseFloat;
/* XXX: use preprocessor ? */
var config_numcalc = (typeof os.open === "undefined");
var has_jscalc = (typeof Fraction === "function");
var has_bignum = (typeof BigFloat === "function");
var colors = {
none: "\x1b[0m",
black: "\x1b[30m",
@@ -913,48 +908,6 @@ import * as os from "os";
}
}
function bigfloat_to_string(a, radix) {
var s;
if (!BigFloat.isFinite(a)) {
/* NaN, Infinite */
if (eval_mode !== "math") {
return "BigFloat(" + a.toString() + ")";
} else {
return a.toString();
}
} else {
if (a == 0) {
if (1 / a < 0)
s = "-0";
else
s = "0";
} else {
if (radix == 16) {
var s;
if (a < 0) {
a = -a;
s = "-";
} else {
s = "";
}
s += "0x" + a.toString(16);
} else {
s = a.toString();
}
}
if (typeof a === "bigfloat" && eval_mode !== "math") {
s += "l";
} else if (eval_mode !== "std" && s.indexOf(".") < 0 &&
((radix == 16 && s.indexOf("p") < 0) ||
(radix == 10 && s.indexOf("e") < 0))) {
/* add a decimal point so that the floating point type
is visible */
s += ".0";
}
return s;
}
}
function bigint_to_string(a, radix) {
var s;
if (radix == 16) {
@@ -988,14 +941,6 @@ import * as os from "os";
std.puts("[circular]");
} else if (a instanceof Date) {
std.puts("Date " + a.toGMTString().__quote());
} else if (has_jscalc && (a instanceof Fraction ||
a instanceof Complex ||
a instanceof Mod ||
a instanceof Polynomial ||
a instanceof PolyMod ||
a instanceof RationalFunction ||
a instanceof Series)) {
std.puts(a.toString());
} else {
stack.push(a);
if (Array.isArray(a)) {
@@ -1041,10 +986,6 @@ import * as os from "os";
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 === "bigfloat") {
std.puts(bigfloat_to_string(a, hex_mode ? 16 : 10));
} else if (type === "bigdecimal") {
std.puts(a.toString() + "m");
} else if (type === "symbol") {
std.puts(String(a));
} else if (type === "function") {
@@ -1085,75 +1026,10 @@ import * as os from "os";
hex_mode = false;
} else if (cmd === "t") {
show_time = !show_time;
} else if (has_bignum && cmd === "p") {
param = expr.substring(cmd.length + 1).trim().split(" ");
if (param.length === 1 && param[0] === "") {
std.puts("BigFloat precision=" + prec + " bits (~" +
Math.floor(prec / log2_10) +
" digits), exponent size=" + expBits + " bits\n");
} else if (param[0] === "f16") {
prec = 11;
expBits = 5;
} else if (param[0] === "f32") {
prec = 24;
expBits = 8;
} else if (param[0] === "f64") {
prec = 53;
expBits = 11;
} else if (param[0] === "f128") {
prec = 113;
expBits = 15;
} else {
prec1 = parseInt(param[0]);
if (param.length >= 2)
expBits1 = parseInt(param[1]);
else
expBits1 = BigFloatEnv.expBitsMax;
if (Number.isNaN(prec1) ||
prec1 < BigFloatEnv.precMin ||
prec1 > BigFloatEnv.precMax) {
std.puts("Invalid precision\n");
return false;
}
if (Number.isNaN(expBits1) ||
expBits1 < BigFloatEnv.expBitsMin ||
expBits1 > BigFloatEnv.expBitsMax) {
std.puts("Invalid exponent bits\n");
return false;
}
prec = prec1;
expBits = expBits1;
}
return false;
} else if (has_bignum && cmd === "digits") {
param = expr.substring(cmd.length + 1).trim();
prec1 = Math.ceil(parseFloat(param) * log2_10);
if (prec1 < BigFloatEnv.precMin ||
prec1 > BigFloatEnv.precMax) {
std.puts("Invalid precision\n");
return false;
}
prec = prec1;
expBits = BigFloatEnv.expBitsMax;
return false;
} else if (has_bignum && cmd === "mode") {
param = expr.substring(cmd.length + 1).trim();
if (param === "") {
std.puts("Running mode=" + eval_mode + "\n");
} else if (param === "std" || param === "math") {
eval_mode = param;
} else {
std.puts("Invalid mode\n");
}
return false;
} else if (cmd === "clear") {
std.puts("\x1b[H\x1b[J");
} else if (cmd === "q") {
std.exit(0);
} else if (has_jscalc && cmd === "a") {
algebraicMode = true;
} else if (has_jscalc && cmd === "n") {
algebraicMode = false;
} else {
std.puts("Unknown directive: " + cmd + "\n");
return false;
@@ -1161,43 +1037,6 @@ import * as os from "os";
return true;
}
if (config_numcalc) {
styles = {
'default': 'black',
'comment': 'white',
'string': 'green',
'regex': 'cyan',
'number': 'green',
'keyword': 'blue',
'function': 'gray',
'type': 'bright_magenta',
'identifier': 'yellow',
'error': 'bright_red',
'result': 'black',
'error_msg': 'bright_red',
};
ps1 = "> ";
/* called by the GUI */
g.execCmd = function (cmd) {
switch(cmd) {
case "dec":
hex_mode = false;
break;
case "hex":
hex_mode = true;
break;
case "num":
algebraicMode = false;
break;
case "alg":
algebraicMode = true;
break;
}
}
}
function help() {
function sel(n) {
return n ? "*": " ";
@@ -1206,40 +1045,12 @@ import * as os from "os";
"\\x " + sel(hex_mode) + "hexadecimal number display\n" +
"\\d " + sel(!hex_mode) + "decimal number display\n" +
"\\t " + sel(show_time) + "toggle timing display\n" +
"\\clear clear the terminal\n");
if (has_jscalc) {
std.puts("\\a " + sel(algebraicMode) + "algebraic mode\n" +
"\\n " + sel(!algebraicMode) + "numeric mode\n");
}
if (has_bignum) {
std.puts("\\p [m [e]] set the BigFloat precision to 'm' bits\n" +
"\\digits n set the BigFloat precision to 'ceil(n*log2(10))' bits\n");
if (!has_jscalc) {
std.puts("\\mode [std|math] change the running mode (current = " + eval_mode + ")\n");
}
}
if (!config_numcalc) {
std.puts("\\q exit\n");
}
"\\clear clear the terminal\n" +
"\\q exit\n");
}
function cmd_start() {
if (!config_numcalc) {
if (has_jscalc)
std.puts('QJSCalc - Type "\\h" for help\n');
else
std.puts('QuickJS - Type "\\h" for help\n');
}
if (has_bignum) {
log2_10 = Math.log(10) / Math.log(2);
prec = 113;
expBits = 15;
if (has_jscalc) {
eval_mode = "math";
/* XXX: numeric mode should always be the default ? */
g.algebraicMode = config_numcalc;
}
}
std.puts('QuickJS - Type "\\h" for help\n');
cmd_readline_start();
}
@@ -1287,13 +1098,8 @@ import * as os from "os";
}
mexpr = "";
if (has_bignum) {
/* XXX: async is not supported in this case */
BigFloatEnv.setPrec(eval_and_print_start.bind(null, expr, false),
prec, expBits);
} else {
eval_and_print_start(expr, true);
}
eval_and_print_start(expr, true);
return true;
}
@@ -1301,8 +1107,6 @@ import * as os from "os";
var result;
try {
if (eval_mode === "math")
expr = '"use math"; void 0;' + expr;
eval_start_time = os.now();
/* eval as a script */
result = std.evalScript(expr, { backtrace_barrier: true, async: is_async });