/
consistentUnionSubtypeReduction.symbols
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consistentUnionSubtypeReduction.symbols
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=== tests/cases/compiler/consistentUnionSubtypeReduction.ts ===
// https://github.com/microsoft/TypeScript/issues/31155
declare const MyArray: {
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
isArray<T>(arg: T | {}): arg is T extends readonly any[] ? readonly any[] : any[];
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 3, 12))
>arg : Symbol(arg, Decl(consistentUnionSubtypeReduction.ts, 3, 15))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 3, 12))
>arg : Symbol(arg, Decl(consistentUnionSubtypeReduction.ts, 3, 15))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 3, 12))
};
declare const a: readonly string[] | string;
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 6, 13))
declare const b: string[] | string;
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 7, 13))
declare const c: unknown;
>c : Symbol(c, Decl(consistentUnionSubtypeReduction.ts, 8, 13))
if (MyArray.isArray(a)) {
>MyArray.isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 6, 13))
a; // readonly string[]
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 6, 13))
}
else {
a; // string
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 6, 13))
}
a; // readonly string[] | string;
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 6, 13))
if (MyArray.isArray(b)) {
>MyArray.isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 7, 13))
b; // string[] | string;
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 7, 13))
}
else {
b; // string
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 7, 13))
}
b; // string[] | string;
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 7, 13))
if (MyArray.isArray(c)) {
>MyArray.isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>c : Symbol(c, Decl(consistentUnionSubtypeReduction.ts, 8, 13))
c; // any[]
>c : Symbol(c, Decl(consistentUnionSubtypeReduction.ts, 8, 13))
}
function f<T>(x: T) {
>f : Symbol(f, Decl(consistentUnionSubtypeReduction.ts, 28, 1))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 31, 11))
>x : Symbol(x, Decl(consistentUnionSubtypeReduction.ts, 31, 14))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 31, 11))
const a: readonly T[] | string = null!;
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 32, 9))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 31, 11))
const b: T[] | string = null!;
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 33, 9))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 31, 11))
const c: T = null!;
>c : Symbol(c, Decl(consistentUnionSubtypeReduction.ts, 34, 9))
>T : Symbol(T, Decl(consistentUnionSubtypeReduction.ts, 31, 11))
if (MyArray.isArray(a)) {
>MyArray.isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 32, 9))
a; // readonly T[]
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 32, 9))
}
else {
a; // string
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 32, 9))
}
a; // readonly T[] | string;
>a : Symbol(a, Decl(consistentUnionSubtypeReduction.ts, 32, 9))
if (MyArray.isArray(b)) {
>MyArray.isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 33, 9))
b; // T[]
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 33, 9))
}
else {
b; // string
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 33, 9))
}
b;
>b : Symbol(b, Decl(consistentUnionSubtypeReduction.ts, 33, 9))
if (MyArray.isArray(c)) {
>MyArray.isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>MyArray : Symbol(MyArray, Decl(consistentUnionSubtypeReduction.ts, 2, 13))
>isArray : Symbol(isArray, Decl(consistentUnionSubtypeReduction.ts, 2, 24))
>c : Symbol(c, Decl(consistentUnionSubtypeReduction.ts, 34, 9))
c; // T & (T extends readonly any[] ? readonly any[] : any[])
>c : Symbol(c, Decl(consistentUnionSubtypeReduction.ts, 34, 9))
}
}