cql-execution
Version:
An execution framework for the Clinical Quality Language (CQL)
76 lines • 2.46 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.TupleElementDefinition = exports.TupleElement = exports.Tuple = exports.Property = void 0;
const expression_1 = require("./expression");
const builder_1 = require("./builder");
class Property extends expression_1.Expression {
constructor(json) {
super(json);
this.scope = json.scope;
this.source = (0, builder_1.build)(json.source);
this.path = json.path;
}
async exec(ctx) {
let obj = this.scope != null ? ctx.get(this.scope) : this.source;
if (obj instanceof expression_1.Expression) {
obj = await obj.execute(ctx);
}
let val = getPropertyFromObject(obj, this.path);
if (val == null) {
const parts = this.path.split('.');
let curr_obj = obj;
for (const part of parts) {
const _obj = getPropertyFromObject(curr_obj, part);
curr_obj = _obj instanceof Function ? _obj.call(curr_obj) : _obj;
}
val = curr_obj != null ? curr_obj : null; // convert undefined to null
}
if (val instanceof Function) {
return val.call(obj);
}
else {
return val;
}
}
}
exports.Property = Property;
function getPropertyFromObject(obj, path) {
let val;
if (obj != null) {
val = obj[path];
if (val === undefined && typeof obj.get === 'function') {
val = obj.get(path);
}
}
return val;
}
class Tuple extends expression_1.Expression {
constructor(json) {
super(json);
const elements = json.element != null ? json.element : [];
this.elements = elements.map((el) => {
return {
name: el.name,
value: (0, builder_1.build)(el.value)
};
});
}
get isTuple() {
return true;
}
async exec(ctx) {
const val = {};
for (const el of this.elements) {
val[el.name] = el.value != null ? await el.value.execute(ctx) : undefined;
}
return val;
}
}
exports.Tuple = Tuple;
class TupleElement extends expression_1.UnimplementedExpression {
}
exports.TupleElement = TupleElement;
class TupleElementDefinition extends expression_1.UnimplementedExpression {
}
exports.TupleElementDefinition = TupleElementDefinition;
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