import-function-toPrimitive.js

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var counter = 0;

function f(stdlib, foreign)

  "use asm";

  var a = +foreign.a;

  var b = +foreign.b;

  function g() {}

  return g;

var foreign =

    a: function() {},

    b: /value that doesn't coerce purely/,

};

foreign.a[Symbol.toPrimitive] =

  function()

    counter++;

    return 0;

};

f(null, foreign);

assertEq(counter, 1);