Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Revert substitution type simplification #31400

Merged
merged 2 commits into from May 15, 2019
Merged

Revert substitution type simplification #31400

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
4b5968e
Revert change to substitution type simplification
ahejlsberg May 14, 2019
92a1547
Accept new baselines
ahejlsberg May 14, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
7 changes: 6 additions & 1 deletion src/compiler/checker.ts
View file
Open in desktop
Expand Up @@ -10196,7 +10196,6 @@ namespace ts {
function getSimplifiedType(type: Type, writing: boolean): Type {
return type.flags & TypeFlags.IndexedAccess ? getSimplifiedIndexedAccessType(<IndexedAccessType>type, writing) :
type.flags & TypeFlags.Conditional ? getSimplifiedConditionalType(<ConditionalType>type, writing) :
type.flags & TypeFlags.Substitution ? writing ? (<SubstitutionType>type).typeVariable : (<SubstitutionType>type).substitute :
type;
}

Expand Down Expand Up @@ -12432,6 +12431,12 @@ namespace ts {
if (isFreshLiteralType(target)) {
target = (<FreshableType>target).regularType;
}
if (source.flags & TypeFlags.Substitution) {
source = (<SubstitutionType>source).substitute;
}
if (target.flags & TypeFlags.Substitution) {
target = (<SubstitutionType>target).typeVariable;
}
if (source.flags & TypeFlags.Simplifiable) {
source = getSimplifiedType(source, /*writing*/ false);
}
Expand Down
2 changes: 1 addition & 1 deletion src/compiler/types.ts
View file
Open in desktop
Expand Up @@ -3967,7 +3967,7 @@ namespace ts {
/* @internal */
ObjectFlagsType = Nullable | Never | Object | Union | Intersection,
/* @internal */
Simplifiable = IndexedAccess | Conditional | Substitution,
Simplifiable = IndexedAccess | Conditional,
// 'Narrowable' types are types where narrowing actually narrows.
// This *should* be every type other than null, undefined, void, and never
Narrowable = Any | Unknown | StructuredOrInstantiable | StringLike | NumberLike | BigIntLike | BooleanLike | ESSymbol | UniqueESSymbol | NonPrimitive,
Expand Down
28 changes: 14 additions & 14 deletions tests/baselines/reference/conditionalTypes2.errors.txt
View file
Open in desktop
Expand Up @@ -10,13 +10,13 @@ tests/cases/conformance/types/conditional/conditionalTypes2.ts(24,5): error TS23
Type 'keyof B' is not assignable to type 'keyof A'.
Type 'string | number | symbol' is not assignable to type 'keyof A'.
Type 'string' is not assignable to type 'keyof A'.
Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
Type 'keyof B' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
Type 'string | number | symbol' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
Type 'keyof B' is not assignable to type 'keyof A'.
Type 'string | number | symbol' is not assignable to type 'keyof A'.
Type 'string' is not assignable to type 'keyof A'.
Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
Type 'keyof B' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
Type 'string | number | symbol' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
Type 'keyof B' is not assignable to type '"valueOf"'.
Type 'string | number | symbol' is not assignable to type '"valueOf"'.
Type 'string' is not assignable to type '"valueOf"'.
tests/cases/conformance/types/conditional/conditionalTypes2.ts(25,5): error TS2322: Type 'Invariant<A>' is not assignable to type 'Invariant<B>'.
Types of property 'foo' are incompatible.
Type 'A extends string ? keyof A : A' is not assignable to type 'B extends string ? keyof B : B'.
Expand Down Expand Up @@ -73,13 +73,13 @@ tests/cases/conformance/types/conditional/conditionalTypes2.ts(75,12): error TS2
!!! error TS2322: Type 'keyof B' is not assignable to type 'keyof A'.
!!! error TS2322: Type 'string | number | symbol' is not assignable to type 'keyof A'.
!!! error TS2322: Type 'string' is not assignable to type 'keyof A'.
!!! error TS2322: Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
!!! error TS2322: Type 'keyof B' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
!!! error TS2322: Type 'string | number | symbol' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
!!! error TS2322: Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf" | keyof A'.
!!! error TS2322: Type 'keyof B' is not assignable to type 'keyof A'.
!!! error TS2322: Type 'string | number | symbol' is not assignable to type 'keyof A'.
!!! error TS2322: Type 'string' is not assignable to type 'keyof A'.
!!! error TS2322: Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
!!! error TS2322: Type 'keyof B' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
!!! error TS2322: Type 'string | number | symbol' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
!!! error TS2322: Type 'string' is not assignable to type 'number | "toString" | "charAt" | "charCodeAt" | "concat" | "indexOf" | "lastIndexOf" | "localeCompare" | "match" | "replace" | "search" | "slice" | "split" | "substring" | "toLowerCase" | "toLocaleLowerCase" | "toUpperCase" | "toLocaleUpperCase" | "trim" | "length" | "substr" | "valueOf"'.
!!! error TS2322: Type 'keyof B' is not assignable to type '"valueOf"'.
!!! error TS2322: Type 'string | number | symbol' is not assignable to type '"valueOf"'.
!!! error TS2322: Type 'string' is not assignable to type '"valueOf"'.
b = a; // Error
~
!!! error TS2322: Type 'Invariant<A>' is not assignable to type 'Invariant<B>'.
Expand Down