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DanielRosenwasserDanielRosenwasser
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Accepted baselines.
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‎tests/baselines/reference/showConfig/Shows tsconfig for single option/useUnknownInCatchVariables/tsconfig.json

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{
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"compilerOptions": {
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"useUnknownInCatchVariables": true
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}
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}

‎tests/baselines/reference/useUnknownInCatchVariables01.errors.txt

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tests/cases/compiler/useUnknownInCatchVariables01.ts(6,12): error TS2339: Property 'toUpperCase' does not exist on type 'unknown'.
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tests/cases/compiler/useUnknownInCatchVariables01.ts(7,10): error TS2356: An arithmetic operand must be of type 'any', 'number', 'bigint' or an enum type.
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tests/cases/compiler/useUnknownInCatchVariables01.ts(8,10): error TS2349: This expression is not callable.
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Type '{}' has no call signatures.
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==== tests/cases/compiler/useUnknownInCatchVariables01.ts (3 errors) ====
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try {
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// ...
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}
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catch (e) {
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// error!
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void e.toUpperCase();
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~~~~~~~~~~~
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!!! error TS2339: Property 'toUpperCase' does not exist on type 'unknown'.
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void e++;
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~
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!!! error TS2356: An arithmetic operand must be of type 'any', 'number', 'bigint' or an enum type.
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void e();
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~
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!!! error TS2349: This expression is not callable.
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!!! error TS2349: Type '{}' has no call signatures.
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if (typeof e === "string") {
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// works!
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// We've narrowed 'e' down to the type 'string'.
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console.log(e.toUpperCase());
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}
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if (e instanceof Error) {
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e.stack?.toUpperCase();
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}
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if (typeof e === "number") {
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e++;
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}
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}

‎tests/baselines/reference/useUnknownInCatchVariables01.js

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//// [useUnknownInCatchVariables01.ts]
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try {
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// ...
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}
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catch (e) {
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// error!
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void e.toUpperCase();
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void e++;
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void e();
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if (typeof e === "string") {
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// works!
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// We've narrowed 'e' down to the type 'string'.
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console.log(e.toUpperCase());
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}
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if (e instanceof Error) {
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e.stack?.toUpperCase();
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}
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if (typeof e === "number") {
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e++;
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}
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}
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//// [useUnknownInCatchVariables01.js]
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var _a;
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try {
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// ...
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}
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catch (e) {
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// error!
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void e.toUpperCase();
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void e++;
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void e();
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if (typeof e === "string") {
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// works!
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// We've narrowed 'e' down to the type 'string'.
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console.log(e.toUpperCase());
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}
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if (e instanceof Error) {
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(_a = e.stack) === null || _a === void 0 ? void 0 : _a.toUpperCase();
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}
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if (typeof e === "number") {
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e++;
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}
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}

‎tests/baselines/reference/useUnknownInCatchVariables01.symbols

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=== tests/cases/compiler/useUnknownInCatchVariables01.ts ===
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try {
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// ...
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}
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catch (e) {
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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// error!
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void e.toUpperCase();
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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void e++;
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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void e();
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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if (typeof e === "string") {
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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// works!
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// We've narrowed 'e' down to the type 'string'.
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console.log(e.toUpperCase());
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>e.toUpperCase : Symbol(String.toUpperCase, Decl(lib.es5.d.ts, --, --))
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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>toUpperCase : Symbol(String.toUpperCase, Decl(lib.es5.d.ts, --, --))
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}
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if (e instanceof Error) {
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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>Error : Symbol(Error, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
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e.stack?.toUpperCase();
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>e.stack?.toUpperCase : Symbol(String.toUpperCase, Decl(lib.es5.d.ts, --, --))
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>e.stack : Symbol(Error.stack, Decl(lib.es5.d.ts, --, --))
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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>stack : Symbol(Error.stack, Decl(lib.es5.d.ts, --, --))
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>toUpperCase : Symbol(String.toUpperCase, Decl(lib.es5.d.ts, --, --))
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}
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if (typeof e === "number") {
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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e++;
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>e : Symbol(e, Decl(useUnknownInCatchVariables01.ts, 3, 7))
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}
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}

‎tests/baselines/reference/useUnknownInCatchVariables01.types

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=== tests/cases/compiler/useUnknownInCatchVariables01.ts ===
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try {
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// ...
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}
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catch (e) {
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>e : unknown
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// error!
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void e.toUpperCase();
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>void e.toUpperCase() : undefined
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>e.toUpperCase() : any
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>e.toUpperCase : any
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>e : unknown
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>toUpperCase : any
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void e++;
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>void e++ : undefined
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>e++ : number
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>e : unknown
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void e();
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>void e() : undefined
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>e() : any
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>e : unknown
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if (typeof e === "string") {
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>typeof e === "string" : boolean
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>typeof e : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
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>e : unknown
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>"string" : "string"
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// works!
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// We've narrowed 'e' down to the type 'string'.
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console.log(e.toUpperCase());
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>console.log(e.toUpperCase()) : void
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>console.log : (...data: any[]) => void
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>console : Console
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>log : (...data: any[]) => void
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>e.toUpperCase() : string
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>e.toUpperCase : () => string
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>e : string
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>toUpperCase : () => string
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}
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if (e instanceof Error) {
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>e instanceof Error : boolean
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>e : unknown
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>Error : ErrorConstructor
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e.stack?.toUpperCase();
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>e.stack?.toUpperCase() : string
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>e.stack?.toUpperCase : () => string
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>e.stack : string
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>e : Error
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>stack : string
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>toUpperCase : () => string
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}
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if (typeof e === "number") {
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>typeof e === "number" : boolean
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>typeof e : "string" | "number" | "bigint" | "boolean" | "symbol" | "undefined" | "object" | "function"
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>e : unknown
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>"number" : "number"
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e++;
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>e++ : number
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>e : number
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}
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}

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