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

Always create optional properties when spreading objects conditionally #40778

Merged
merged 6 commits into from
Oct 12, 2020
Merged

Always create optional properties when spreading objects conditionally #40778

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
17d996e
Revert 7181c2af
weswigham Sep 25, 2020
74779ba
Add test
weswigham Sep 25, 2020
4156662
Accept updated baseline
weswigham Sep 25, 2020
34fb470
Merge branch 'master' into spread-compact-literals
weswigham Oct 12, 2020
abaafe1
Delete duplicate test
weswigham Oct 12, 2020
e46a038
Fix baselines now that dupe test is gone
weswigham Oct 12, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 2 additions & 8 deletions src/compiler/checker.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14436,23 +14436,17 @@ namespace ts {
return isEmptyObjectType(type) || !!(type.flags & (TypeFlags.Null | TypeFlags.Undefined | TypeFlags.BooleanLike | TypeFlags.NumberLike | TypeFlags.BigIntLike | TypeFlags.StringLike | TypeFlags.EnumLike | TypeFlags.NonPrimitive | TypeFlags.Index));
}

function isSinglePropertyAnonymousObjectType(type: Type) {
return !!(type.flags & TypeFlags.Object) &&
!!(getObjectFlags(type) & ObjectFlags.Anonymous) &&
(length(getPropertiesOfType(type)) === 1 || every(getPropertiesOfType(type), p => !!(p.flags & SymbolFlags.Optional)));
}

function tryMergeUnionOfObjectTypeAndEmptyObject(type: UnionType, readonly: boolean): Type | undefined {
if (type.types.length === 2) {
const firstType = type.types[0];
const secondType = type.types[1];
if (every(type.types, isEmptyObjectTypeOrSpreadsIntoEmptyObject)) {
return isEmptyObjectType(firstType) ? firstType : isEmptyObjectType(secondType) ? secondType : emptyObjectType;
}
if (isEmptyObjectTypeOrSpreadsIntoEmptyObject(firstType) && isSinglePropertyAnonymousObjectType(secondType)) {
if (isEmptyObjectTypeOrSpreadsIntoEmptyObject(firstType)) {
return getAnonymousPartialType(secondType);
}
if (isEmptyObjectTypeOrSpreadsIntoEmptyObject(secondType) && isSinglePropertyAnonymousObjectType(firstType)) {
if (isEmptyObjectTypeOrSpreadsIntoEmptyObject(secondType)) {
return getAnonymousPartialType(firstType);
}
}
Expand Down
170 changes: 0 additions & 170 deletions tests/baselines/reference/objectSpreadRepeatedComplexity.errors.txt
View file
Open in desktop

This file was deleted.

4 changes: 2 additions & 2 deletions tests/baselines/reference/objectSpreadRepeatedComplexity.types
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
=== tests/cases/conformance/types/spread/objectSpreadRepeatedComplexity.ts ===
function f(cnd: Record<number, boolean>){
>f : (cnd: Record<number, boolean>) => any
>f : (cnd: Record<number, boolean>) => { prop20a?: number; prop20b?: number; prop19a?: number; prop19b?: number; prop18a?: number; prop18b?: number; prop17a?: number; prop17b?: number; prop16a?: number; prop16b?: number; prop15a?: number; prop15b?: number; prop14a?: number; prop14b?: number; prop13a?: number; prop13b?: number; prop12a?: number; prop12b?: number; prop11a?: number; prop11b?: number; prop10a?: number; prop10b?: number; prop9a?: number; prop9b?: number; prop8a?: number; prop8b?: number; prop7a?: number; prop7b?: number; prop6a?: number; prop6b?: number; prop5a?: number; prop5b?: number; prop4a?: number; prop4b?: number; prop3a?: number; prop3b?: number; prop0?: number; }
>cnd : Record<number, boolean>

// Type is a union of 2^(n-1) members, where n is the number of spread objects
return {
>{ // Without this one, it collapses to {} ? ...(cnd[1] && cnd[2] && { prop0: 0, }), // With one prop each, it collapses to a single object (#34853?) ...(cnd[3] && { prop3a: 1, prop3b: 1, }), ...(cnd[4] && { prop4a: 1, prop4b: 1, }), ...(cnd[5] && { prop5a: 1, prop5b: 1, }), ...(cnd[6] && { prop6a: 1, prop6b: 1, }), ...(cnd[7] && { prop7a: 1, prop7b: 1, }), ...(cnd[8] && { prop8a: 1, prop8b: 1, }), ...(cnd[9] && { prop9a: 1, prop9b: 1, }), ...(cnd[10] && { prop10a: 1, prop10b: 1, }), ...(cnd[11] && { prop11a: 1, prop11b: 1, }), ...(cnd[12] && { prop12a: 1, prop12b: 1, }), ...(cnd[13] && { prop13a: 1, prop13b: 1, }), ...(cnd[14] && { prop14a: 1, prop14b: 1, }), ...(cnd[15] && { prop15a: 1, prop15b: 1, }), ...(cnd[16] && { prop16a: 1, prop16b: 1, }), ...(cnd[17] && { prop17a: 1, prop17b: 1, }), ...(cnd[18] && { prop18a: 1, prop18b: 1, }), ...(cnd[19] && { prop19a: 1, prop19b: 1, }), ...(cnd[20] && { prop20a: 1, prop20b: 1, }), } : any
>{ // Without this one, it collapses to {} ? ...(cnd[1] && cnd[2] && { prop0: 0, }), // With one prop each, it collapses to a single object (#34853?) ...(cnd[3] && { prop3a: 1, prop3b: 1, }), ...(cnd[4] && { prop4a: 1, prop4b: 1, }), ...(cnd[5] && { prop5a: 1, prop5b: 1, }), ...(cnd[6] && { prop6a: 1, prop6b: 1, }), ...(cnd[7] && { prop7a: 1, prop7b: 1, }), ...(cnd[8] && { prop8a: 1, prop8b: 1, }), ...(cnd[9] && { prop9a: 1, prop9b: 1, }), ...(cnd[10] && { prop10a: 1, prop10b: 1, }), ...(cnd[11] && { prop11a: 1, prop11b: 1, }), ...(cnd[12] && { prop12a: 1, prop12b: 1, }), ...(cnd[13] && { prop13a: 1, prop13b: 1, }), ...(cnd[14] && { prop14a: 1, prop14b: 1, }), ...(cnd[15] && { prop15a: 1, prop15b: 1, }), ...(cnd[16] && { prop16a: 1, prop16b: 1, }), ...(cnd[17] && { prop17a: 1, prop17b: 1, }), ...(cnd[18] && { prop18a: 1, prop18b: 1, }), ...(cnd[19] && { prop19a: 1, prop19b: 1, }), ...(cnd[20] && { prop20a: 1, prop20b: 1, }), } : { prop20a?: number; prop20b?: number; prop19a?: number; prop19b?: number; prop18a?: number; prop18b?: number; prop17a?: number; prop17b?: number; prop16a?: number; prop16b?: number; prop15a?: number; prop15b?: number; prop14a?: number; prop14b?: number; prop13a?: number; prop13b?: number; prop12a?: number; prop12b?: number; prop11a?: number; prop11b?: number; prop10a?: number; prop10b?: number; prop9a?: number; prop9b?: number; prop8a?: number; prop8b?: number; prop7a?: number; prop7b?: number; prop6a?: number; prop6b?: number; prop5a?: number; prop5b?: number; prop4a?: number; prop4b?: number; prop3a?: number; prop3b?: number; prop0?: number; }

// Without this one, it collapses to {} ?
...(cnd[1] &&
Expand Down
4 changes: 2 additions & 2 deletions tests/baselines/reference/spreadOverwritesPropertyStrict.types
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -78,14 +78,14 @@ function h(obj: { x: number } | { x: string }) {
>obj : { x: number; } | { x: string; }
}
function i(b: boolean, t: { command: string, ok: string }) {
>i : (b: boolean, t: { command: string; ok: string;}) => { command: string; ok: string; } | { command: string; }
>i : (b: boolean, t: { command: string; ok: string;}) => { command: string; ok?: string; }
>b : boolean
>t : { command: string; ok: string; }
>command : string
>ok : string

return { command: "hi", ...(b ? t : {}) } // ok
>{ command: "hi", ...(b ? t : {}) } : { command: string; ok: string; } | { command: string; }
>{ command: "hi", ...(b ? t : {}) } : { command: string; ok?: string; }
>command : string
>"hi" : "hi"
>(b ? t : {}) : { command: string; ok: string; } | {}
Expand Down