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Template literal types for template literal expressions #41891

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Merged
ahejlsberg merged 11 commits into from
Dec 12, 2020
Merged

Template literal types for template literal expressions #41891

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eda291d
Infer template literal types for template literal expressions
ahejlsberg Dec 8, 2020
4acf495
Update test
ahejlsberg Dec 8, 2020
537fd37
Update another test
ahejlsberg Dec 9, 2020
e88ceca
Accept new baselines
ahejlsberg Dec 9, 2020
e35c42e
Minor fixes
ahejlsberg Dec 9, 2020
dfd760d
Add tests
ahejlsberg Dec 9, 2020
54c3be9
Accept new baselines
ahejlsberg Dec 9, 2020
afcfd9c
Make new TypeFlags internal
ahejlsberg Dec 9, 2020
96885c3
Accept new API baselines
ahejlsberg Dec 9, 2020
b3cdbf3
Ensure template literals assignable to String, Object, {}, etc.
ahejlsberg Dec 9, 2020
5cf670b
Add tests
ahejlsberg Dec 9, 2020
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Minor fixes
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@ahejlsberg
ahejlsberg committed Dec 9, 2020
commit e35c42ec6f307db3baa813926b0474afcd7443bf
1 change: 1 addition & 0 deletions src/compiler/types.ts
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Expand Up @@ -4991,6 +4991,7 @@ namespace ts {

/* @internal */
export type FreshableLiteralType = LiteralType | TemplateLiteralType;
/* @internal */
export type FreshableType = FreshableLiteralType | FreshableIntrinsicType;

// String literal types (TypeFlags.StringLiteral)
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1 change: 0 additions & 1 deletion tests/baselines/reference/api/tsserverlibrary.d.ts
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Expand Up @@ -2511,7 +2511,6 @@ declare namespace ts {
aliasSymbol?: Symbol;
aliasTypeArguments?: readonly Type[];
}
export type FreshableType = FreshableLiteralType | FreshableIntrinsicType;
export interface LiteralType extends Type {
value: string | number | PseudoBigInt;
freshType: LiteralType;
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1 change: 0 additions & 1 deletion tests/baselines/reference/api/typescript.d.ts
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Expand Up @@ -2511,7 +2511,6 @@ declare namespace ts {
aliasSymbol?: Symbol;
aliasTypeArguments?: readonly Type[];
}
export type FreshableType = FreshableLiteralType | FreshableIntrinsicType;
export interface LiteralType extends Type {
value: string | number | PseudoBigInt;
freshType: LiteralType;
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