Skip to content

Defer checking call and new expressions with context sensitive arguments #62381

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

Draft
wants to merge 3 commits into
base: main
Choose a base branch
from
+707 −3
Draft

Defer checking call and new expressions with context sensitive arguments #62381

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
215335b
Defer checking call and new expressions with context sensitive arguments
Andarist Sep 2, 2025
02a447d
only defer in `CheckMode.Inferential`
Andarist Sep 3, 2025
48acd8b
try with `CheckMode.Contextual`
Andarist Sep 3, 2025
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: 9 additions & 1 deletion src/compiler/checker.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21141,6 +21141,9 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
const { expression } = node as JsxExpression;
return !!expression && isContextSensitive(expression);
}
case SyntaxKind.NewExpression:
case SyntaxKind.CallExpression:
return some((node as NewExpression | CallExpression).arguments, isContextSensitive);
}

return false;
Expand Down Expand Up @@ -36999,7 +37002,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
// use the resolvingSignature singleton to indicate that we deferred processing. This result will be
// propagated out and eventually turned into silentNeverType (a type that is assignable to anything and
// from which we never make inferences).
if (checkMode & CheckMode.SkipGenericFunctions && !node.typeArguments && callSignatures.some(isGenericFunctionReturningFunction)) {
if (!node.typeArguments && (checkMode & CheckMode.SkipGenericFunctions && callSignatures.some(isGenericFunctionReturningFunction) || ((checkMode & (CheckMode.Contextual | CheckMode.SkipContextSensitive)) === (CheckMode.Contextual | CheckMode.SkipContextSensitive)) && isContextSensitive(node))) {
skippedGenericFunction(node, checkMode);
return resolvingSignature;
}
Expand Down Expand Up @@ -37054,6 +37057,11 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
return resolveUntypedCall(node);
}

if (!node.typeArguments && ((checkMode & (CheckMode.Contextual | CheckMode.SkipContextSensitive)) === (CheckMode.Contextual | CheckMode.SkipContextSensitive)) && isContextSensitive(node)) {
skippedGenericFunction(node, checkMode);
return resolvingSignature;
}

// Technically, this signatures list may be incomplete. We are taking the apparent type,
// but we are not including construct signatures that may have been added to the Object or
// Function interface, since they have none by default. This is a bit of a leap of faith
Expand Down
229 changes: 229 additions & 0 deletions tests/baselines/reference/contextSensitiveCallNewArguments1.symbols
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,229 @@
//// [tests/cases/compiler/contextSensitiveCallNewArguments1.ts] ////

=== contextSensitiveCallNewArguments1.ts ===
// https://github.com/microsoft/TypeScript/issues/62380

class Foo<T> {
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>T : Symbol(T, Decl(contextSensitiveCallNewArguments1.ts, 2, 10))

constructor(public inner: T) {}
>inner : Symbol(Foo.inner, Decl(contextSensitiveCallNewArguments1.ts, 3, 14))
>T : Symbol(T, Decl(contextSensitiveCallNewArguments1.ts, 2, 10))
}

class BarClass<T> {
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>T : Symbol(T, Decl(contextSensitiveCallNewArguments1.ts, 6, 15))

constructor(public accessor: (state: T) => boolean) {}
>accessor : Symbol(BarClass.accessor, Decl(contextSensitiveCallNewArguments1.ts, 7, 14))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 7, 32))
>T : Symbol(T, Decl(contextSensitiveCallNewArguments1.ts, 6, 15))
}

{
class Container<C, F> {
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 10, 1))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 11, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 11, 20))

constructor(
public ctx: C,
>ctx : Symbol(Container.ctx, Decl(contextSensitiveCallNewArguments1.ts, 12, 16))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 11, 18))

public fooFactory: (ctx: C) => F,
>fooFactory : Symbol(Container.fooFactory, Decl(contextSensitiveCallNewArguments1.ts, 13, 20))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 14, 26))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 11, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 11, 20))

public bars: BarClass<F>[],
>bars : Symbol(Container.bars, Decl(contextSensitiveCallNewArguments1.ts, 14, 39))
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 11, 20))

) {}
}

const container = new Container(42, (ctx) => new Foo({ answer: ctx }), [
>container : Symbol(container, Decl(contextSensitiveCallNewArguments1.ts, 19, 7))
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 10, 1))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 19, 39))
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>answer : Symbol(answer, Decl(contextSensitiveCallNewArguments1.ts, 19, 56))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 19, 39))

new BarClass((state) => true),
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 20, 18))

]);
}

{
class Container<C, F> {
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 24, 1))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 25, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 25, 20))

constructor(
public ctx: C,
>ctx : Symbol(Container.ctx, Decl(contextSensitiveCallNewArguments1.ts, 26, 16))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 25, 18))

public fooFactory: (ctx: C) => F,
>fooFactory : Symbol(Container.fooFactory, Decl(contextSensitiveCallNewArguments1.ts, 27, 20))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 28, 26))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 25, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 25, 20))

public bar: BarClass<F>,
>bar : Symbol(Container.bar, Decl(contextSensitiveCallNewArguments1.ts, 28, 39))
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 25, 20))

) {}
}

const containerWithoutAnnotation = new Container(
>containerWithoutAnnotation : Symbol(containerWithoutAnnotation, Decl(contextSensitiveCallNewArguments1.ts, 33, 7))
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 24, 1))

42,
(ctx) => new Foo({ answer: ctx }),
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 35, 5))
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>answer : Symbol(answer, Decl(contextSensitiveCallNewArguments1.ts, 35, 22))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 35, 5))

new BarClass((state) => true),
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 36, 18))

);

const containerWithAnnotation = new Container(
>containerWithAnnotation : Symbol(containerWithAnnotation, Decl(contextSensitiveCallNewArguments1.ts, 39, 7))
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 24, 1))

42,
(ctx: number) => new Foo({ answer: ctx }),
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 41, 5))
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>answer : Symbol(answer, Decl(contextSensitiveCallNewArguments1.ts, 41, 30))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 41, 5))

new BarClass((state) => true),
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 42, 18))

);
}

{
class Container<C, F> {
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 46, 1))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 47, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 47, 20))

constructor(
public ctx: C,
>ctx : Symbol(Container.ctx, Decl(contextSensitiveCallNewArguments1.ts, 48, 16))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 47, 18))

public fooFactory: (ctx: C) => F,
>fooFactory : Symbol(Container.fooFactory, Decl(contextSensitiveCallNewArguments1.ts, 49, 20))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 50, 26))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 47, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 47, 20))

public barFactory: () => BarClass<F>,
>barFactory : Symbol(Container.barFactory, Decl(contextSensitiveCallNewArguments1.ts, 50, 39))
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 47, 20))

) {}
}

const container = new Container(
>container : Symbol(container, Decl(contextSensitiveCallNewArguments1.ts, 55, 7))
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 46, 1))

42,
(ctx) => new Foo({ answer: ctx }),
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 57, 5))
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>answer : Symbol(answer, Decl(contextSensitiveCallNewArguments1.ts, 57, 22))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 57, 5))

() => new BarClass((state) => true),
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 58, 24))

);
}

{
class Container<C, F> {
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 62, 1))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 63, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 63, 20))

constructor(
public ctx: C,
>ctx : Symbol(Container.ctx, Decl(contextSensitiveCallNewArguments1.ts, 64, 16))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 63, 18))

public fooFactory: (ctx: C) => F,
>fooFactory : Symbol(Container.fooFactory, Decl(contextSensitiveCallNewArguments1.ts, 65, 20))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 66, 26))
>C : Symbol(C, Decl(contextSensitiveCallNewArguments1.ts, 63, 18))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 63, 20))

public barFactory: (dummy: never) => BarClass<F>,
>barFactory : Symbol(Container.barFactory, Decl(contextSensitiveCallNewArguments1.ts, 66, 39))
>dummy : Symbol(dummy, Decl(contextSensitiveCallNewArguments1.ts, 67, 26))
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>F : Symbol(F, Decl(contextSensitiveCallNewArguments1.ts, 63, 20))

) {}
}

const containerWithDummy = new Container(
>containerWithDummy : Symbol(containerWithDummy, Decl(contextSensitiveCallNewArguments1.ts, 71, 7))
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 62, 1))

42,
(ctx) => new Foo({ answer: ctx }),
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 73, 5))
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>answer : Symbol(answer, Decl(contextSensitiveCallNewArguments1.ts, 73, 22))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 73, 5))

(dummy) => new BarClass((state) => true),
>dummy : Symbol(dummy, Decl(contextSensitiveCallNewArguments1.ts, 74, 5))
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 74, 29))

);

const containerWithWrongArity = new Container(
>containerWithWrongArity : Symbol(containerWithWrongArity, Decl(contextSensitiveCallNewArguments1.ts, 77, 7))
>Container : Symbol(Container, Decl(contextSensitiveCallNewArguments1.ts, 62, 1))

42,
(ctx) => new Foo({ answer: ctx }),
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 79, 5))
>Foo : Symbol(Foo, Decl(contextSensitiveCallNewArguments1.ts, 0, 0))
>answer : Symbol(answer, Decl(contextSensitiveCallNewArguments1.ts, 79, 22))
>ctx : Symbol(ctx, Decl(contextSensitiveCallNewArguments1.ts, 79, 5))

() => new BarClass((state) => true),
>BarClass : Symbol(BarClass, Decl(contextSensitiveCallNewArguments1.ts, 4, 1))
>state : Symbol(state, Decl(contextSensitiveCallNewArguments1.ts, 80, 24))

);
}

Loading
Loading