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tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(2,13): error TS2300: Duplicate identifier 'a'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(2,17): error TS2300: Duplicate identifier 'a'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(2,21): error TS2300: Duplicate identifier 'b'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(2,27): error TS2300: Duplicate identifier 'b'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(3,14): error TS2300: Duplicate identifier 'a'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(3,17): error TS2300: Duplicate identifier 'a'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(4,14): error TS2300: Duplicate identifier 'b'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(4,19): error TS2300: Duplicate identifier 'b'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(5,14): error TS2300: Duplicate identifier 'c'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(5,18): error TS2300: Duplicate identifier 'c'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(5,24): error TS2300: Duplicate identifier 'c'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(6,14): error TS2300: Duplicate identifier 'd'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(6,21): error TS2300: Duplicate identifier 'd'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(7,14): error TS2300: Duplicate identifier 'e'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(7,21): error TS2300: Duplicate identifier 'e'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(7,27): error TS2300: Duplicate identifier 'e'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(7,35): error TS2300: Duplicate identifier 'e'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(7,40): error TS2300: Duplicate identifier 'e'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(7,49): error TS2300: Duplicate identifier 'e'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(8,14): error TS2300: Duplicate identifier 'f'.
tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts(8,20): error TS2300: Duplicate identifier 'f'.
==== tests/cases/compiler/duplicateIdentifierBindingElementInParameterDeclaration2.ts (21 errors) ====
"use strict"
function f0(a, [a, [b]], {b}) { }
~
!!! error TS2300: Duplicate identifier 'a'.
~
!!! error TS2300: Duplicate identifier 'a'.
~
!!! error TS2300: Duplicate identifier 'b'.
~
!!! error TS2300: Duplicate identifier 'b'.
function f1([a, a]) { }
~
!!! error TS2300: Duplicate identifier 'a'.
~
!!! error TS2300: Duplicate identifier 'a'.
function f2({b}, {b}) { }
~
!!! error TS2300: Duplicate identifier 'b'.
~
!!! error TS2300: Duplicate identifier 'b'.
function f3([c, [c], [[c]]]) { }
~
!!! error TS2300: Duplicate identifier 'c'.
~
!!! error TS2300: Duplicate identifier 'c'.
~
!!! error TS2300: Duplicate identifier 'c'.
function f4({d, d: {d}}) { }
~
!!! error TS2300: Duplicate identifier 'd'.
~
!!! error TS2300: Duplicate identifier 'd'.
function f5({e, e: {e}}, {e}, [d, e, [[e]]], ...e) { }
~
!!! error TS2300: Duplicate identifier 'e'.
~
!!! error TS2300: Duplicate identifier 'e'.
~
!!! error TS2300: Duplicate identifier 'e'.
~
!!! error TS2300: Duplicate identifier 'e'.
~
!!! error TS2300: Duplicate identifier 'e'.
~
!!! error TS2300: Duplicate identifier 'e'.
function f6([f, ...f]) { }
~
!!! error TS2300: Duplicate identifier 'f'.
~
!!! error TS2300: Duplicate identifier 'f'.
function f7(a, func = (a) => { return 1 }){ } // not error
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