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=== tests/cases/conformance/jsdoc/a.js ===
/** @param {number=} a */
function f(a) {
>f : Symbol(f, Decl(a.js, 0, 0))
>a : Symbol(a, Decl(a.js, 1, 11))
a = 1
>a : Symbol(a, Decl(a.js, 1, 11))
a = null // should not be allowed
>a : Symbol(a, Decl(a.js, 1, 11))
a = undefined
>a : Symbol(a, Decl(a.js, 1, 11))
>undefined : Symbol(undefined)
}
f()
>f : Symbol(f, Decl(a.js, 0, 0))
f(null) // should not be allowed
>f : Symbol(f, Decl(a.js, 0, 0))
f(undefined)
>f : Symbol(f, Decl(a.js, 0, 0))
>undefined : Symbol(undefined)
f(1)
>f : Symbol(f, Decl(a.js, 0, 0))
/** @param {???!?number?=} a */
function g(a) {
>g : Symbol(g, Decl(a.js, 9, 4))
>a : Symbol(a, Decl(a.js, 12, 11))
a = 1
>a : Symbol(a, Decl(a.js, 12, 11))
a = null
>a : Symbol(a, Decl(a.js, 12, 11))
a = undefined
>a : Symbol(a, Decl(a.js, 12, 11))
>undefined : Symbol(undefined)
}
g()
>g : Symbol(g, Decl(a.js, 9, 4))
g(null)
>g : Symbol(g, Decl(a.js, 9, 4))
g(undefined)
>g : Symbol(g, Decl(a.js, 9, 4))
>undefined : Symbol(undefined)
g(1)
>g : Symbol(g, Decl(a.js, 9, 4))
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