69 lines
2.0 KiB
TypeScript
69 lines
2.0 KiB
TypeScript
function assertUInt8(target: any, key: string) {
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return assertInteger(target, key, 0, 255);
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}
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function assertInt8(target: any, key: string) {
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return assertInteger(target, key, -128, 127);
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}
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function assertUInt16(target: any, key: string) {
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return assertInteger(target, key, 0, 65535);
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}
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function assertInt16(target: any, key: string) {
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return assertInteger(target, key, -32768, 32767);
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}
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function assertUInt32(target: any, key: string) {
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return assertInteger(target, key, 0, 4294967295);
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}
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function assertInt32(target: any, key: string) {
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return assertInteger(target, key, -2147483648, 2147483647);
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}
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function assertCompactLength(target: any, key: string) {
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return assertUInt16(target, key);
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}
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function assertInteger(target: any, key: string, min: number, max: number) {
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let val = this[key];
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if (delete this[key]) {
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Object.defineProperty(target, key, {
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get: function () {
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return val;
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},
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set: function (newVal) {
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if (newVal < min || newVal > max) {
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throw `${target.constructor.name}.${key}: ` +
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`Integer ${newVal} is outside the valid [${min}, ${max}] interval`;
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}
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val = newVal;
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},
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enumerable: true,
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configurable: true
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});
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}
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}
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function assertEnum<E>(enumerated: E) {
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return function(target: any, key: string) {
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let val = this[key];
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if (delete this[key]) {
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Object.defineProperty(target, key, {
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get: function () {
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return val;
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},
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set: function (newVal) {
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if (enumerated[newVal] === undefined) {
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throw `${target.constructor.name}.${key}: ${newVal} is not enum`;
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}
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val = newVal;
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},
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enumerable: true,
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configurable: true
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});
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}
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};
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}
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