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tests/cases/compiler/circularOptionalityRemoval.ts(2,14): error TS2502: 'x' is referenced directly or indirectly in its own type annotation.
tests/cases/compiler/circularOptionalityRemoval.ts(2,38): error TS2372: Parameter 'x' cannot reference itself.
tests/cases/compiler/circularOptionalityRemoval.ts(2,38): error TS18048: 'x' is possibly 'undefined'.
tests/cases/compiler/circularOptionalityRemoval.ts(2,46): error TS2372: Parameter 'x' cannot reference itself.
tests/cases/compiler/circularOptionalityRemoval.ts(5,14): error TS1015: Parameter cannot have question mark and initializer.
tests/cases/compiler/circularOptionalityRemoval.ts(5,14): error TS2502: 'x' is referenced directly or indirectly in its own type annotation.
tests/cases/compiler/circularOptionalityRemoval.ts(5,27): error TS2304: Cannot find name 'someCondition'.
tests/cases/compiler/circularOptionalityRemoval.ts(5,54): error TS2372: Parameter 'x' cannot reference itself.
==== tests/cases/compiler/circularOptionalityRemoval.ts (8 errors) ====
// Constructed repro
function fn1(x: number | undefined = x > 0 ? x : 0) { }
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2502: 'x' is referenced directly or indirectly in its own type annotation.
~
!!! error TS2372: Parameter 'x' cannot reference itself.
~
!!! error TS18048: 'x' is possibly 'undefined'.
~
!!! error TS2372: Parameter 'x' cannot reference itself.
// Report from user
function fn2(x?: string = someCondition ? 'value1' : x) { }
~
!!! error TS1015: Parameter cannot have question mark and initializer.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2502: 'x' is referenced directly or indirectly in its own type annotation.
~~~~~~~~~~~~~
!!! error TS2304: Cannot find name 'someCondition'.
~
!!! error TS2372: Parameter 'x' cannot reference itself.
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