78 lines
2.6 KiB
Plaintext
78 lines
2.6 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.reflectionEquals = void 0;
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const reflection_info_1 = require("./reflection-info");
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/**
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* Determines whether two message of the same type have the same field values.
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* Checks for deep equality, traversing repeated fields, oneof groups, maps
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* and messages recursively.
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* Will also return true if both messages are `undefined`.
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*/
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function reflectionEquals(info, a, b) {
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if (a === b)
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return true;
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if (!a || !b)
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return false;
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for (let field of info.fields) {
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let localName = field.localName;
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let val_a = field.oneof ? a[field.oneof][localName] : a[localName];
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let val_b = field.oneof ? b[field.oneof][localName] : b[localName];
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switch (field.kind) {
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case "enum":
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case "scalar":
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let t = field.kind == "enum" ? reflection_info_1.ScalarType.INT32 : field.T;
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if (!(field.repeat
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? repeatedPrimitiveEq(t, val_a, val_b)
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: primitiveEq(t, val_a, val_b)))
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return false;
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break;
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case "map":
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if (!(field.V.kind == "message"
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? repeatedMsgEq(field.V.T(), objectValues(val_a), objectValues(val_b))
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: repeatedPrimitiveEq(field.V.kind == "enum" ? reflection_info_1.ScalarType.INT32 : field.V.T, objectValues(val_a), objectValues(val_b))))
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return false;
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break;
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case "message":
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let T = field.T();
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if (!(field.repeat
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? repeatedMsgEq(T, val_a, val_b)
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: T.equals(val_a, val_b)))
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return false;
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break;
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}
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}
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return true;
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}
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exports.reflectionEquals = reflectionEquals;
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const objectValues = Object.values;
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function primitiveEq(type, a, b) {
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if (a === b)
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return true;
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if (type !== reflection_info_1.ScalarType.BYTES)
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return false;
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let ba = a;
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let bb = b;
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if (ba.length !== bb.length)
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return false;
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for (let i = 0; i < ba.length; i++)
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if (ba[i] != bb[i])
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return false;
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return true;
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}
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function repeatedPrimitiveEq(type, a, b) {
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if (a.length !== b.length)
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return false;
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for (let i = 0; i < a.length; i++)
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if (!primitiveEq(type, a[i], b[i]))
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return false;
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return true;
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}
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function repeatedMsgEq(type, a, b) {
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if (a.length !== b.length)
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return false;
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for (let i = 0; i < a.length; i++)
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if (!type.equals(a[i], b[i]))
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return false;
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return true;
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}
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