File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
class Optional {
constructor(type, condition = true) {
this.type = type;
this.condition = condition;
}
decode(stream, parent) {
let { condition } = this;
if (typeof condition === 'function') {
condition = condition.call(parent, parent);
}
if (condition) {
return this.type.decode(stream, parent);
}
}
size(val, parent) {
let { condition } = this;
if (typeof condition === 'function') {
condition = condition.call(parent, parent);
}
if (condition) {
return this.type.size(val, parent);
} else {
return 0;
}
}
encode(stream, val, parent) {
let { condition } = this;
if (typeof condition === 'function') {
condition = condition.call(parent, parent);
}
if (condition) {
return this.type.encode(stream, val, parent);
}
}
}
module.exports = Optional;