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/**

* @name Ratio of jump-to-definitions computed

*/

import python

private import LegacyPointsTo

import analysis.DefinitionTracking

predicate want_to_have_definition(ExprWithPointsTo e) {

/* not builtin object like len, tuple, etc. */

not exists(Value builtin | e.pointsTo(builtin) and builtin.isBuiltin()) and

(

e instanceof Name and e.(Name).getCtx() instanceof Load

or

e instanceof Attribute and e.(Attribute).getCtx() instanceof Load

or

e instanceof ImportMember

or

e instanceof ImportExpr

)

}

from int yes, int no

where

yes = count(Expr e | want_to_have_definition(e) and exists(getUniqueDefinition(e))) and

no = count(Expr e | want_to_have_definition(e) and not exists(getUniqueDefinition(e)))

select yes, no, yes * 100 / (yes + no) + "%"