Test synthetic properties w/hasExcessProperties
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tests/cases/compiler/excessPropertyCheckWithSpread.ts(6,3): error TS2345: Argument of type '{ n: number; a: number; }' is not assignable to parameter of type '{ a: any; }'.
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Object literal may only specify known properties, and 'n' does not exist in type '{ a: any; }'.
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tests/cases/compiler/excessPropertyCheckWithSpread.ts(16,3): error TS2345: Argument of type '{ opt: string | number; a: number; }' is not assignable to parameter of type '{ a: any; }'.
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Object literal may only specify known properties, and 'opt' does not exist in type '{ a: any; }'.
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==== tests/cases/compiler/excessPropertyCheckWithSpread.ts (2 errors) ====
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declare function f({ a: number }): void
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interface I {
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readonly n: number;
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}
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declare let i: I;
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f({ a: 1, ...i });
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~~~~~~~~~~~~~~
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!!! error TS2345: Argument of type '{ n: number; a: number; }' is not assignable to parameter of type '{ a: any; }'.
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!!! error TS2345: Object literal may only specify known properties, and 'n' does not exist in type '{ a: any; }'.
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interface R {
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opt?: number
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}
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interface L {
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opt: string
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}
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declare let l: L;
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declare let r: R;
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f({ a: 1, ...l, ...r });
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~~~~~~~~~~~~~~~~~~~~
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!!! error TS2345: Argument of type '{ opt: string | number; a: number; }' is not assignable to parameter of type '{ a: any; }'.
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!!! error TS2345: Object literal may only specify known properties, and 'opt' does not exist in type '{ a: any; }'.
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tests/baselines/reference/excessPropertyCheckWithSpread.js
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30
tests/baselines/reference/excessPropertyCheckWithSpread.js
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//// [excessPropertyCheckWithSpread.ts]
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declare function f({ a: number }): void
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interface I {
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readonly n: number;
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}
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declare let i: I;
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f({ a: 1, ...i });
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interface R {
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opt?: number
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}
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interface L {
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opt: string
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}
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declare let l: L;
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declare let r: R;
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f({ a: 1, ...l, ...r });
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//// [excessPropertyCheckWithSpread.js]
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var __assign = (this && this.__assign) || Object.assign || function(t) {
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for (var s, i = 1, n = arguments.length; i < n; i++) {
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s = arguments[i];
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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t[p] = s[p];
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}
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return t;
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};
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f(__assign({ a: 1 }, i));
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f(__assign({ a: 1 }, l, r));
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16
tests/cases/compiler/excessPropertyCheckWithSpread.ts
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16
tests/cases/compiler/excessPropertyCheckWithSpread.ts
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declare function f({ a: number }): void
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interface I {
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readonly n: number;
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}
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declare let i: I;
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f({ a: 1, ...i });
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interface R {
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opt?: number
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}
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interface L {
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opt: string
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}
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declare let l: L;
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declare let r: R;
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f({ a: 1, ...l, ...r });
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