Add support for native bigints to type declarations

Author: danimoh

.travis.yml

@@ -1,11 +1,8 @@
 language: node_js
 node_js:
-  - "9"
-  - "8"
-  - "7"
-  - "6"
-  - "5"
-  - "4"
+  - "12"
+  - "11"
+  - "10"
 script:
  - npm test
  - cat ./coverage/lcov.info | ./node_modules/.bin/coveralls

BigInteger.d.ts

@@ -8,7 +8,7 @@ export as namespace bigInt;
 declare var bigInt: bigInt.BigIntegerStatic;
 
 declare namespace bigInt {
-    type BigNumber = number | string | BigInteger;
+    type BigNumber = number | bigint | string | BigInteger;
 
     interface BigIntegerStatic {
         /**
@@ -21,6 +21,11 @@ declare namespace bigInt {
          */
         (number: number): BigInteger;
 
+        /**
+         * Parse a Javascript native bigint into a bigInt.
+         */
+        (number: bigint): BigInteger;
+
         /**
          * Parse a string into a bigInt.
          * Default base is 10.

package.json

@@ -37,7 +37,7 @@
     "karma-jasmine": "^0.3.6",
     "karma-phantomjs-launcher": "^1.0.4",
     "lodash": "^4.17.11",
-    "typescript": "^2.9.2",
+    "typescript": "^3.6.3",
     "uglifyjs": "^2.4.10"
   },
   "license": "Unlicense",

spec/tsDefinitions.ts

@@ -106,6 +106,7 @@ if (removedInstanceFns.length) {
 // constructor tests
 const noArgument = bigInt();
 const numberArgument = bigInt(93);
+const nativeBigintArgument = bigInt(93n);
 const stringArgument = bigInt("75643564363473453456342378564387956906736546456235345");
 const baseArgumentInt = bigInt("101010", 2);
 const baseArgumentStr = bigInt("101010", "2");
@@ -131,62 +132,73 @@ isBigInteger = bigInt[0];
 isBigInteger = bigInt[999];
 
 isBigInteger = bigInt.fromArray([1, 2, 3]);
+isBigInteger = bigInt.fromArray([1n, 2n, 3n]);
 isBigInteger = bigInt.fromArray(['1', '2', '3']);
 isBigInteger = bigInt.fromArray([bigInt.one, bigInt.zero, bigInt(9)], 10, true);
 
 isBigInteger = bigInt.gcd(0, 1);
 isBoolean = bigInt.isInstance(x);
 isBigInteger = bigInt.lcm(0, 1);
 isBigInteger = bigInt.max(0, 1);
-isBigInteger = bigInt.gcd(0, 1);
+isBigInteger = bigInt.min(0, 1);
 isBigInteger = bigInt.randBetween(0, 1);
 
 // Instance methods
 isBigInteger = x.abs();
-isBigInteger = x.add(0).add(x).add("100");
-isBigInteger = x.and(0).and(x).and("100");
+isBigInteger = x.add(0).add(x).add("100").add(100n);
+isBigInteger = x.and(0).and(x).and("100").and(100n);
 
 isNumber = x.compare(0);
 isNumber = x.compare(x);
 isNumber = x.compare("100");
+isNumber = x.compare(100n);
 
 isNumber = x.compareAbs(0);
 isNumber = x.compareAbs(x);
 isNumber = x.compareAbs("100");
+isNumber = x.compareAbs(100n);
 
 isNumber = x.compareTo(0);
 isNumber = x.compareTo(x);
 isNumber = x.compareTo("100");
+isNumber = x.compareTo(100n);
 
-isBigInteger = x.divide(10).divide(x).divide('10');
+isBigInteger = x.divide(10).divide(x).divide('10').divide(10n);
 
 isDivmod = x.divmod(10);
 isDivmod = x.divmod(x);
 isDivmod = x.divmod("100");
+isDivmod = x.divmod(100n);
 
 isBoolean = x.eq(0);
 isBoolean = x.eq(x);
 isBoolean = x.eq("100");
+isBoolean = x.eq(100n);
 
 isBoolean = x.equals(0);
 isBoolean = x.equals(x);
 isBoolean = x.equals("100");
+isBoolean = x.equals(100n);
 
 isBoolean = x.geq(0);
 isBoolean = x.geq(x);
 isBoolean = x.geq("100");
+isBoolean = x.geq(100n);
 
 isBoolean = x.greater(0);
 isBoolean = x.greater(x);
 isBoolean = x.greater("100");
+isBoolean = x.greater(100n);
 
 isBoolean = x.greaterOrEquals(0);
 isBoolean = x.greaterOrEquals(x);
 isBoolean = x.greaterOrEquals("100");
+isBoolean = x.greaterOrEquals(100n);
 
 isBoolean = x.gt(0);
 isBoolean = x.gt(x);
 isBoolean = x.gt("100");
+isBoolean = x.gt(100n);
 
 isBoolean = x.isDivisibleBy(x);
 isBoolean = x.isEven();
@@ -204,11 +216,11 @@ isBoolean = x.leq(x);
 isBoolean = x.lesser(0);
 isBoolean = x.lesserOrEquals(0);
 isBoolean = x.lt(0);
-isBigInteger = x.minus(0).minus(x).minus('0');
-isBigInteger = x.mod(10).mod(x).mod('10');
-isBigInteger = bigInt(3).modInv(11);
-isBigInteger = x.modPow(10, 2).modPow(x, x).modPow('10', '2');
-isBigInteger = x.multiply(0).multiply(x).multiply('0');
+isBigInteger = x.minus(0).minus(x).minus('0').minus(0n);
+isBigInteger = x.mod(10).mod(x).mod('10').mod(10n);
+isBigInteger = bigInt(3).modInv(11).modInv(11n);
+isBigInteger = x.modPow(10, 2).modPow(x, x).modPow('10', '2').modPow(10n, 2n);
+isBigInteger = x.multiply(0).multiply(x).multiply('0').multiply(0n);
 isBigInteger = x.negate();
 isBoolean = x.neq(x);
 isBigInteger = x.next();
@@ -217,18 +229,19 @@ isBigInteger = x.not();
 isBoolean = x.notEquals(0);
 isBoolean = x.notEquals(x);
 isBoolean = x.notEquals("100");
+isBoolean = x.notEquals(100n);
 
-isBigInteger = x.or(10).or(x).or('10');
-isBigInteger = x.over(10).over(x).over('10');
-isBigInteger = x.plus(0).plus(x).plus('0');
-isBigInteger = x.pow(0).pow(x).pow('0');
+isBigInteger = x.or(10).or(x).or('10').or(10n);
+isBigInteger = x.over(10).over(x).over('10').over(10n);
+isBigInteger = x.plus(0).plus(x).plus('0').plus(0n);
+isBigInteger = x.pow(0).pow(x).pow('0').pow(0n);
 isBigInteger = x.prev();
-isBigInteger = x.remainder(10).remainder(x).remainder('10');
-isBigInteger = x.shiftLeft(0).shiftLeft('0');
-isBigInteger = x.shiftRight(0).shiftRight('0');
+isBigInteger = x.remainder(10).remainder(x).remainder('10').remainder(10n);
+isBigInteger = x.shiftLeft(0).shiftLeft('0').shiftLeft(0n);
+isBigInteger = x.shiftRight(0).shiftRight('0').shiftRight(0n);
 isBigInteger = x.square();
-isBigInteger = x.subtract(0).subtract(x).subtract('0');
-isBigInteger = x.times(0).times(x).times('0');
+isBigInteger = x.subtract(0).subtract(x).subtract('0').subtract(0n);
+isBigInteger = x.times(0).times(x).times('0').times(0n);
 isNumber = x.toJSNumber();
 
 isBaseArray = x.toArray(10);
@@ -239,4 +252,4 @@ isString = x.toString(36);
 isString = x.toJSON();
 
 isNumber = x.valueOf();
-isBigInteger = x.xor(0).xor(x).xor('0');
+isBigInteger = x.xor(0).xor(x).xor('0').xor(0n);

tsconfig.json

@@ -1,5 +1,6 @@
 {
     "compilerOptions": {
+        "target": "esnext",
         "module": "commonjs",
         "lib": [
             "es6"
@@ -22,4 +23,4 @@
         "BigInteger.d.ts",
         "spec/tsDefinitions.ts"
     ]
-}
+}