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JS: Lots of fix for Amount parsing.

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This commit is contained in:
Arthur Britto
2012-10-18 20:00:02 -07:00
committed by Stefan Thomas
parent 09b29f7ab3
commit c020f14c19
1 changed files with 41 additions and 27 deletions
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68
js/amount.js
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@@ -37,7 +37,7 @@ UInt160.prototype.copyTo = function(d) {
return d;
};
// value === NaN on error.
// value = NaN on error.
UInt160.prototype.parse_json = function (j) {
// Canonicalize and validate
@@ -126,7 +126,7 @@ Currency.prototype.copyTo = function(d) {
return d;
};
// this.value === NaN on error.
// this.value = NaN on error.
Currency.prototype.parse_json = function(j) {
if ("" === j || "0" === j || "XNS" === j) {
this.value = 0;
@@ -194,12 +194,12 @@ Amount.prototype.copyTo = function(d) {
// YYY Might also provide is_valid_json.
Amount.prototype.is_valid = function() {
return NaN !== this.value;
return !isNaN(this.value);
};
// Convert only value to JSON wire format.
Amount.prototype.to_text = function(allow_nan) {
if (NaN === this.value) {
if (isNaN(this.value)) {
// Never should happen.
return allow_nan ? NaN : "0";
}
@@ -240,7 +240,7 @@ Amount.prototype.to_text = function(allow_nan) {
};
Amount.prototype.canonicalize = function() {
if (NaN === this.value || !this.currency) {
if (isNaN(this.value) || !this.currency) {
// nothing
}
else if (this.value.equals(BigInteger.ZERO)) {
@@ -285,7 +285,7 @@ Amount.prototype.to_json = function() {
};
Amount.prototype.to_text_full = function() {
return this.value === NaN
return isNaN(this.value)
? NaN
: this.is_native
? this.to_text() + "/XNS"
@@ -335,44 +335,55 @@ Amount.prototype.parse_native = function(j) {
// Parse a non-native value.
Amount.prototype.parse_value = function(j) {
this.is_native = false;
if ('number' === typeof j) {
this.is_negative = j < 0;
if (this.is_negative) j = -j;
this.value = new BigInteger(j);
this.offset = 0;
this.is_native = false;
this.is_negative = j < 0;
this.canonicalize();
}
else if ('string' === typeof j) {
var e = j.match(/^(-?\d+)e(\d+)/);
var d = j.match(/^(-?\d+)\.(\d+)/);
var i = j.match(/^(-?)(\d+)$/);
var d = !i && j.match(/^(-?)(\d+)\.(\d*)$/);
var e = !e && j.match(/^(-?)(\d+)e(\d+)$/);
if (e) {
// e notation
this.value = new BigInteger(e[1]);
this.offset = parseInt(e[2]);
this.value = new BigInteger(e[2]);
this.offset = parseInt(e[3]);
this.is_negative = !!e[1];
this.canonicalize();
}
else if (d) {
// float notation
var integer = new BigInteger(d[1]);
var fraction = new BigInteger(d[2]);
this.value = integer.multiply(exports.consts.bi_10.clone().pow(d[2].length)).add(fraction);
this.offset = -d[2].length;
var integer = new BigInteger(d[2]);
var fraction = new BigInteger(d[3]);
var precision = d[3].length;
this.value = integer.multiply(exports.consts.bi_10.clone().pow(precision)).add(fraction);
this.offset = -precision;
this.is_negative = !!d[1];
this.canonicalize();
}
else
{
else if (i) {
// integer notation
this.value = new BigInteger(j);
this.offset = 0;
this.value = new BigInteger(i[2]);
this.offset = 0;
this.is_negative = !!i[1];
this.canonicalize();
}
else {
this.value = NaN;
}
this.is_native = false;
this.is_negative = undefined;
this.canonicalize();
}
else if (j.constructor == BigInteger) {
this.value = j.clone();
@@ -401,7 +412,10 @@ Amount.prototype.parse_json = function(j) {
this.issuer = new UInt160();
}
}
else if ('object' === typeof j && j.currency) {
else if ('object' === typeof j && j.constructor == Amount) {
j.copyTo(this);
}
else if ('object' === typeof j && 'value' in j) {
// Parse the passed value to sanitize and copy it.
this.parse_value(j.value);
@@ -409,7 +423,7 @@ Amount.prototype.parse_json = function(j) {
this.issuer.parse_json(j.issuer);
}
else {
this.value = NaN;
this.value = NaN;
}
return this;