ripple-binary-codec
Version:
XRP Ledger binary codec
58 lines • 1.8 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.FieldLookup = void 0;
const bytes_1 = require("./bytes");
const serialized_type_1 = require("../types/serialized-type");
const constants_1 = require("./constants");
/*
* @brief: Serialize a field based on type_code and Field.nth
*/
function fieldHeader(type, nth) {
const header = [];
if (type < 16) {
if (nth < 16) {
header.push((type << 4) | nth);
}
else {
header.push(type << 4, nth);
}
}
else if (nth < 16) {
header.push(nth, type);
}
else {
header.push(0, type, nth);
}
return Uint8Array.from(header);
}
function buildField([name, info], typeOrdinal) {
const field = fieldHeader(typeOrdinal, info.nth);
return {
name: name,
nth: info.nth,
isVariableLengthEncoded: info.isVLEncoded,
isSerialized: info.isSerialized,
isSigningField: info.isSigningField,
ordinal: (typeOrdinal << 16) | info.nth,
type: new bytes_1.Bytes(info.type, typeOrdinal, constants_1.TYPE_WIDTH),
header: field,
associatedType: serialized_type_1.SerializedType, // For later assignment in ./types/index.js or Definitions.updateAll(...)
};
}
/*
* @brief: The collection of all fields as defined in definitions.json
*/
class FieldLookup {
constructor(fields, types) {
fields.forEach(([name, field_info]) => {
const typeOrdinal = types[field_info.type];
this[name] = buildField([name, field_info], typeOrdinal);
this[this[name].ordinal.toString()] = this[name];
});
}
fromString(value) {
return this[value];
}
}
exports.FieldLookup = FieldLookup;
//# sourceMappingURL=field.js.map