add validators to checkable classes
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@ -156,6 +156,25 @@ export namespace Checkable {
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}
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}
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export function ClassWithValidator(target: any) {
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target.checked = (v: any) => {
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let cv = checkValue(v, {
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propertyKey: "(root)",
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type: target,
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checker: checkValue
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}, ["(root)"]);
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let instance = new target();
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if (typeof instance.validate !== "function") {
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throw Error("invalid Checkable annotion: validate method required");
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}
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// May throw exception
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instance.validate.call(cv);
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return cv;
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};
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return target;
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}
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export function Value(type: any) {
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export function Value(type: any) {
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if (!type) {
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if (!type) {
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throw Error("Type does not exist yet (wrong order of definitions?)");
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throw Error("Type does not exist yet (wrong order of definitions?)");
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@ -360,8 +360,15 @@ interface Merchant {
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instance?: string;
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instance?: string;
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}
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}
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@Checkable.Class
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@Checkable.ClassWithValidator
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export class Contract {
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export class Contract {
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validate() {
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if (this.exchanges.length == 0) {
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throw Error("no exchanges in contract");
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}
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}
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@Checkable.String
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@Checkable.String
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H_wire: string;
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H_wire: string;
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