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Fix type parameter comparability to consistently allow comparisons on unconstrained type parameters (#48861)
* Fix type parameter comparability to consistently allow comparisons on unconstrained type parameters * Less elaboration, non-strict-mode fix
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Wesley Wigham authored and 
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-351
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+18
-4
@@ -19347,6 +19347,20 @@ namespace ts {
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}
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}
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}
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if (relation === comparableRelation && sourceFlags & TypeFlags.TypeParameter) {
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// This is a carve-out in comparability to essentially forbid comparing a type parameter
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// with another type parameter unless one extends the other. (Remember: comparability is mostly bidirectional!)
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let constraint = getConstraintOfTypeParameter(source);
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if (constraint && hasNonCircularBaseConstraint(source)) {
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while (constraint && constraint.flags & TypeFlags.TypeParameter) {
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if (result = isRelatedTo(constraint, target, RecursionFlags.Source, /*reportErrors*/ false)) {
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return result;
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}
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constraint = getConstraintOfTypeParameter(constraint);
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}
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}
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return Ternary.False;
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}
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}
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else if (targetFlags & TypeFlags.Index) {
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const targetType = (target as IndexType).type;
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@@ -19558,8 +19572,8 @@ namespace ts {
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if (sourceFlags & TypeFlags.TypeVariable) {
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// IndexedAccess comparisons are handled above in the `targetFlags & TypeFlage.IndexedAccess` branch
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if (!(sourceFlags & TypeFlags.IndexedAccess && targetFlags & TypeFlags.IndexedAccess)) {
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const constraint = getConstraintOfType(source as TypeVariable);
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if (!constraint || (sourceFlags & TypeFlags.TypeParameter && constraint.flags & TypeFlags.Any)) {
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const constraint = getConstraintOfType(source as TypeVariable) || unknownType;
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if (!getConstraintOfType(source as TypeVariable) || (sourceFlags & TypeFlags.TypeParameter && constraint.flags & TypeFlags.Any)) {
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// A type variable with no constraint is not related to the non-primitive object type.
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if (result = isRelatedTo(emptyObjectType, extractTypesOfKind(target, ~TypeFlags.NonPrimitive), RecursionFlags.Both)) {
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resetErrorInfo(saveErrorInfo);
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@@ -19567,12 +19581,12 @@ namespace ts {
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}
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}
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// hi-speed no-this-instantiation check (less accurate, but avoids costly `this`-instantiation when the constraint will suffice), see #28231 for report on why this is needed
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else if (result = isRelatedTo(constraint, target, RecursionFlags.Source, /*reportErrors*/ false, /*headMessage*/ undefined, intersectionState)) {
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if (result = isRelatedTo(constraint, target, RecursionFlags.Source, /*reportErrors*/ false, /*headMessage*/ undefined, intersectionState)) {
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resetErrorInfo(saveErrorInfo);
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return result;
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}
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// slower, fuller, this-instantiated check (necessary when comparing raw `this` types from base classes), see `subclassWithPolymorphicThisIsAssignable.ts` test for example
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else if (result = isRelatedTo(getTypeWithThisArgument(constraint, source), target, RecursionFlags.Source, reportErrors && !(targetFlags & sourceFlags & TypeFlags.TypeParameter), /*headMessage*/ undefined, intersectionState)) {
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else if (result = isRelatedTo(getTypeWithThisArgument(constraint, source), target, RecursionFlags.Source, reportErrors && constraint !== unknownType && !(targetFlags & sourceFlags & TypeFlags.TypeParameter), /*headMessage*/ undefined, intersectionState)) {
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resetErrorInfo(saveErrorInfo);
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return result;
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}
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+1
-337
@@ -6,121 +6,9 @@ tests/cases/conformance/expressions/binaryOperators/comparisonOperator/compariso
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(17,14): error TS2367: This condition will always return 'true' since the types 'T' and 'U' have no overlap.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(18,14): error TS2367: This condition will always return 'false' since the types 'T' and 'U' have no overlap.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(19,14): error TS2367: This condition will always return 'true' since the types 'T' and 'U' have no overlap.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(22,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(23,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(24,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(25,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(26,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(27,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(28,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(30,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(31,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(32,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(33,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(34,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(35,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(36,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(39,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(40,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(41,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(42,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(43,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(44,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(45,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(47,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(48,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(49,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(50,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(51,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(52,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(53,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(56,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(57,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(58,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(59,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(60,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(61,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(62,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(64,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(65,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(66,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(67,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(68,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(69,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(70,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(73,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(74,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(75,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(76,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(77,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(78,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(79,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(81,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(82,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(83,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(84,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(85,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(86,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(87,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(90,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(91,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(92,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(93,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(94,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(95,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(96,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(98,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(99,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(100,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(101,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(102,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(103,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(104,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(107,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(108,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(109,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(110,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(111,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(112,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(113,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(115,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(116,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(117,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(118,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(119,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(120,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(121,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(124,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(125,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(126,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(127,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(128,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(129,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(130,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(132,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(133,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(134,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(135,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(136,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(137,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(138,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(141,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(142,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(143,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(144,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(145,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(146,16): error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(147,16): error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(149,16): error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
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tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(150,16): error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(151,16): error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(152,16): error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(153,16): error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(154,16): error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts(155,16): error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts (120 errors) ====
|
||||
==== tests/cases/conformance/expressions/binaryOperators/comparisonOperator/comparisonOperatorWithNoRelationshipTypeParameter.ts (8 errors) ====
|
||||
enum E { a, b, c }
|
||||
|
||||
var a: boolean;
|
||||
@@ -159,361 +47,137 @@ tests/cases/conformance/expressions/binaryOperators/comparisonOperator/compariso
|
||||
|
||||
// operator <
|
||||
var r1a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r1a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r1a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r1a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r1a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r1a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r1a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r1b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r1b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r1b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r1b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r1b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r1b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r1b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator >
|
||||
var r2a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r2a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r2a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r2a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r2a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r2a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r2a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r2b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r2b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r2b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r2b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r2b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r2b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r2b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator <=
|
||||
var r3a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r3a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r3a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r3a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r3a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r3a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r3a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r3b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r3b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r3b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r3b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r3b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r3b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r3b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator >=
|
||||
var r4a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r4a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r4a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r4a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r4a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r4a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r4a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r4b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r4b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r4b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r4b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r4b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r4b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r4b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator ==
|
||||
var r5a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r5a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r5a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r5a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r5a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r5a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r5a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r5b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r5b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r5b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r5b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r5b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r5b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r5b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator !=
|
||||
var r6a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r6a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r6a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r6a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r6a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r6a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r6a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r6b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r6b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r6b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r6b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r6b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r6b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r6b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator ===
|
||||
var r7a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r7a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r7a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r7a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r7a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r7a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r7a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r7b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r7b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r7b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r7b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r7b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r7b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r7b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
|
||||
// operator !==
|
||||
var r8a1 = t < a;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'boolean'.
|
||||
var r8a2 = t < b;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'number'.
|
||||
var r8a3 = t < c;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'string'.
|
||||
var r8a4 = t < d;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'void'.
|
||||
var r8a5 = t < e;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'E'.
|
||||
var r8a6 = t < f;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and '{ a: string; }'.
|
||||
var r8a7 = t < g;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'T' and 'any[]'.
|
||||
|
||||
var r8b1 = a < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'boolean' and 'T'.
|
||||
var r8b2 = b < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'number' and 'T'.
|
||||
var r8b3 = c < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'string' and 'T'.
|
||||
var r8b4 = d < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'void' and 'T'.
|
||||
var r8b5 = e < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'E' and 'T'.
|
||||
var r8b6 = f < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types '{ a: string; }' and 'T'.
|
||||
var r8b7 = g < t;
|
||||
~~~~~
|
||||
!!! error TS2365: Operator '<' cannot be applied to types 'any[]' and 'T'.
|
||||
}
|
||||
@@ -0,0 +1,37 @@
|
||||
tests/cases/compiler/genericWithNoConstraintComparableWithCurlyCurly.ts(23,5): error TS2352: Conversion of type '{}' to type 'T' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
|
||||
'T' could be instantiated with an arbitrary type which could be unrelated to '{}'.
|
||||
|
||||
|
||||
==== tests/cases/compiler/genericWithNoConstraintComparableWithCurlyCurly.ts (1 errors) ====
|
||||
function foo<T>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function bar<T extends unknown>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function baz<T extends {}>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function bat<T extends object>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function no<T extends null | undefined>() {
|
||||
let x = {};
|
||||
x as T; // should error
|
||||
~~~~~~
|
||||
!!! error TS2352: Conversion of type '{}' to type 'T' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
|
||||
!!! error TS2352: 'T' could be instantiated with an arbitrary type which could be unrelated to '{}'.
|
||||
}
|
||||
|
||||
function yes<T extends object | null | undefined>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
//// [genericWithNoConstraintComparableWithCurlyCurly.ts]
|
||||
function foo<T>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function bar<T extends unknown>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function baz<T extends {}>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function bat<T extends object>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function no<T extends null | undefined>() {
|
||||
let x = {};
|
||||
x as T; // should error
|
||||
}
|
||||
|
||||
function yes<T extends object | null | undefined>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
//// [genericWithNoConstraintComparableWithCurlyCurly.js]
|
||||
"use strict";
|
||||
function foo() {
|
||||
var x = {};
|
||||
x;
|
||||
}
|
||||
function bar() {
|
||||
var x = {};
|
||||
x;
|
||||
}
|
||||
function baz() {
|
||||
var x = {};
|
||||
x;
|
||||
}
|
||||
function bat() {
|
||||
var x = {};
|
||||
x;
|
||||
}
|
||||
function no() {
|
||||
var x = {};
|
||||
x; // should error
|
||||
}
|
||||
function yes() {
|
||||
var x = {};
|
||||
x;
|
||||
}
|
||||
@@ -0,0 +1,72 @@
|
||||
=== tests/cases/compiler/genericWithNoConstraintComparableWithCurlyCurly.ts ===
|
||||
function foo<T>() {
|
||||
>foo : Symbol(foo, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 0, 0))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 0, 13))
|
||||
|
||||
let x = {};
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 1, 7))
|
||||
|
||||
x as T;
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 1, 7))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 0, 13))
|
||||
}
|
||||
|
||||
function bar<T extends unknown>() {
|
||||
>bar : Symbol(bar, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 3, 1))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 5, 13))
|
||||
|
||||
let x = {};
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 6, 7))
|
||||
|
||||
x as T;
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 6, 7))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 5, 13))
|
||||
}
|
||||
|
||||
function baz<T extends {}>() {
|
||||
>baz : Symbol(baz, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 8, 1))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 10, 13))
|
||||
|
||||
let x = {};
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 11, 7))
|
||||
|
||||
x as T;
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 11, 7))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 10, 13))
|
||||
}
|
||||
|
||||
function bat<T extends object>() {
|
||||
>bat : Symbol(bat, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 13, 1))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 15, 13))
|
||||
|
||||
let x = {};
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 16, 7))
|
||||
|
||||
x as T;
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 16, 7))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 15, 13))
|
||||
}
|
||||
|
||||
function no<T extends null | undefined>() {
|
||||
>no : Symbol(no, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 18, 1))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 20, 12))
|
||||
|
||||
let x = {};
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 21, 7))
|
||||
|
||||
x as T; // should error
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 21, 7))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 20, 12))
|
||||
}
|
||||
|
||||
function yes<T extends object | null | undefined>() {
|
||||
>yes : Symbol(yes, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 23, 1))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 25, 13))
|
||||
|
||||
let x = {};
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 26, 7))
|
||||
|
||||
x as T;
|
||||
>x : Symbol(x, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 26, 7))
|
||||
>T : Symbol(T, Decl(genericWithNoConstraintComparableWithCurlyCurly.ts, 25, 13))
|
||||
}
|
||||
@@ -0,0 +1,74 @@
|
||||
=== tests/cases/compiler/genericWithNoConstraintComparableWithCurlyCurly.ts ===
|
||||
function foo<T>() {
|
||||
>foo : <T>() => void
|
||||
|
||||
let x = {};
|
||||
>x : {}
|
||||
>{} : {}
|
||||
|
||||
x as T;
|
||||
>x as T : T
|
||||
>x : {}
|
||||
}
|
||||
|
||||
function bar<T extends unknown>() {
|
||||
>bar : <T extends unknown>() => void
|
||||
|
||||
let x = {};
|
||||
>x : {}
|
||||
>{} : {}
|
||||
|
||||
x as T;
|
||||
>x as T : T
|
||||
>x : {}
|
||||
}
|
||||
|
||||
function baz<T extends {}>() {
|
||||
>baz : <T extends {}>() => void
|
||||
|
||||
let x = {};
|
||||
>x : {}
|
||||
>{} : {}
|
||||
|
||||
x as T;
|
||||
>x as T : T
|
||||
>x : {}
|
||||
}
|
||||
|
||||
function bat<T extends object>() {
|
||||
>bat : <T extends object>() => void
|
||||
|
||||
let x = {};
|
||||
>x : {}
|
||||
>{} : {}
|
||||
|
||||
x as T;
|
||||
>x as T : T
|
||||
>x : {}
|
||||
}
|
||||
|
||||
function no<T extends null | undefined>() {
|
||||
>no : <T extends null | undefined>() => void
|
||||
>null : null
|
||||
|
||||
let x = {};
|
||||
>x : {}
|
||||
>{} : {}
|
||||
|
||||
x as T; // should error
|
||||
>x as T : T
|
||||
>x : {}
|
||||
}
|
||||
|
||||
function yes<T extends object | null | undefined>() {
|
||||
>yes : <T extends object | null | undefined>() => void
|
||||
>null : null
|
||||
|
||||
let x = {};
|
||||
>x : {}
|
||||
>{} : {}
|
||||
|
||||
x as T;
|
||||
>x as T : T
|
||||
>x : {}
|
||||
}
|
||||
@@ -59,11 +59,11 @@ function f4<T>(x: T & 1 | T & 2) {
|
||||
|
||||
case 1: x; break; // T & 1
|
||||
>1 : 1
|
||||
>x : T & 1
|
||||
>x : (T & 1) | (T & 2)
|
||||
|
||||
case 2: x; break; // T & 2
|
||||
>2 : 2
|
||||
>x : T & 2
|
||||
>x : (T & 1) | (T & 2)
|
||||
|
||||
default: x; // Should narrow to never
|
||||
>x : never
|
||||
|
||||
@@ -16,7 +16,6 @@ tests/cases/conformance/types/unknown/unknownType1.ts(112,9): error TS2322: Type
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(113,9): error TS2322: Type 'unknown' is not assignable to type '{}'.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(114,9): error TS2322: Type 'unknown' is not assignable to type '{} | null | undefined'.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(120,9): error TS2322: Type 'T' is not assignable to type 'object'.
|
||||
Type 'unknown' is not assignable to type 'object'.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(128,5): error TS2322: Type 'number[]' is not assignable to type '{ [x: string]: unknown; }'.
|
||||
Index signature for type 'string' is missing in type 'number[]'.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(129,5): error TS2322: Type 'number' is not assignable to type '{ [x: string]: unknown; }'.
|
||||
@@ -26,9 +25,7 @@ tests/cases/conformance/types/unknown/unknownType1.ts(150,17): error TS2355: A f
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(156,14): error TS2700: Rest types may only be created from object types.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(162,5): error TS2564: Property 'a' has no initializer and is not definitely assigned in the constructor.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(171,9): error TS2322: Type 'U' is not assignable to type '{}'.
|
||||
Type 'unknown' is not assignable to type '{}'.
|
||||
tests/cases/conformance/types/unknown/unknownType1.ts(181,5): error TS2322: Type 'T' is not assignable to type '{}'.
|
||||
Type 'unknown' is not assignable to type '{}'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/types/unknown/unknownType1.ts (27 errors) ====
|
||||
@@ -188,7 +185,6 @@ tests/cases/conformance/types/unknown/unknownType1.ts(181,5): error TS2322: Type
|
||||
let y: object = x; // Error
|
||||
~
|
||||
!!! error TS2322: Type 'T' is not assignable to type 'object'.
|
||||
!!! error TS2322: Type 'unknown' is not assignable to type 'object'.
|
||||
}
|
||||
|
||||
// Anything fresh but primitive assignable to { [x: string]: unknown }
|
||||
@@ -257,7 +253,6 @@ tests/cases/conformance/types/unknown/unknownType1.ts(181,5): error TS2322: Type
|
||||
let y: {} = u;
|
||||
~
|
||||
!!! error TS2322: Type 'U' is not assignable to type '{}'.
|
||||
!!! error TS2322: Type 'unknown' is not assignable to type '{}'.
|
||||
}
|
||||
|
||||
// Repro from #26796
|
||||
@@ -270,6 +265,5 @@ tests/cases/conformance/types/unknown/unknownType1.ts(181,5): error TS2322: Type
|
||||
return arg; // Error
|
||||
~~~~~~~~~~~
|
||||
!!! error TS2322: Type 'T' is not assignable to type '{}'.
|
||||
!!! error TS2322: Type 'unknown' is not assignable to type '{}'.
|
||||
}
|
||||
|
||||
@@ -44,7 +44,6 @@ tests/cases/conformance/types/tuple/variadicTuples2.ts(73,5): error TS2322: Type
|
||||
tests/cases/conformance/types/tuple/variadicTuples2.ts(74,5): error TS2322: Type '[number, ...T]' is not assignable to type '[number, ...number[]]'.
|
||||
Type at position 1 in source is not compatible with type at position 1 in target.
|
||||
Type 'T[number]' is not assignable to type 'number'.
|
||||
Type 'unknown' is not assignable to type 'number'.
|
||||
tests/cases/conformance/types/tuple/variadicTuples2.ts(107,16): error TS2345: Argument of type '[1, 2, 3, 4]' is not assignable to parameter of type '[...number[], (...values: number[]) => void]'.
|
||||
Type at position 3 in source is not compatible with type at position 1 in target.
|
||||
Type 'number' is not assignable to type '(...values: number[]) => void'.
|
||||
@@ -206,7 +205,6 @@ tests/cases/conformance/types/tuple/variadicTuples2.ts(130,25): error TS2345: Ar
|
||||
!!! error TS2322: Type '[number, ...T]' is not assignable to type '[number, ...number[]]'.
|
||||
!!! error TS2322: Type at position 1 in source is not compatible with type at position 1 in target.
|
||||
!!! error TS2322: Type 'T[number]' is not assignable to type 'number'.
|
||||
!!! error TS2322: Type 'unknown' is not assignable to type 'number'.
|
||||
}
|
||||
|
||||
// Inference
|
||||
|
||||
@@ -0,0 +1,30 @@
|
||||
// @strict: true
|
||||
function foo<T>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function bar<T extends unknown>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function baz<T extends {}>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function bat<T extends object>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
|
||||
function no<T extends null | undefined>() {
|
||||
let x = {};
|
||||
x as T; // should error
|
||||
}
|
||||
|
||||
function yes<T extends object | null | undefined>() {
|
||||
let x = {};
|
||||
x as T;
|
||||
}
|
||||
Reference in new issue
Block a user