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add Opcode.smallInt()

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This commit is contained in:
Manuel Araoz 2014-12-04 10:45:10 -03:00
parent 4fae69807d
commit 7b54a53414
2 changed files with 23 additions and 4 deletions
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10
lib/opcode.js
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@ -46,6 +46,16 @@ Opcode.prototype.toString = function() {
return str; return str;
}; };
Opcode.smallInt = function(n) {
if (!(n >= 0 && n <= 16)) {
throw new Error('Invalid Argument: n must be between 0 and 16');
}
if (n === 0) {
return Opcode('OP_0');
}
return new Opcode(Opcode.map.OP_1 + n - 1);
};
Opcode.map = { Opcode.map = {
// push value // push value
OP_FALSE: 0, OP_FALSE: 0,

17
test/opcode.js
View File

@ -92,13 +92,22 @@ describe('Opcode', function() {
Opcode('OP_16') Opcode('OP_16')
]; ];
describe('@isSmallIntOp', function() { describe('@smallInt', function() {
var testSmallInt = function() { var testSmallInt = function(n, op) {
Opcode.isSmallIntOp(this).should.equal(true); Opcode.smallInt(n).toString().should.equal(op.toString());
}; };
for (var i = 0; i < smallints.length; i++) { for (var i = 0; i < smallints.length; i++) {
var op = smallints[i]; var op = smallints[i];
it('should work for small int ' + op, testSmallInt.bind(op)); it('should work for small int ' + op, testSmallInt.bind(null, i, op));
}
});
describe('@isSmallIntOp', function() {
var testIsSmallInt = function(op) {
Opcode.isSmallIntOp(op).should.equal(true);
};
for (var i = 0; i < smallints.length; i++) {
var op = smallints[i];
it('should work for small int ' + op, testIsSmallInt.bind(null, op));
} }
it('should work for non-small ints', function() { it('should work for non-small ints', function() {