Test/triggers/splitting-triggers-yields-better-precondition-related-errors.dfy


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// RUN: %dafny /compile:0 /print:"%t.print" /dprint:"%t.dprint" /autoTriggers:1 /printTooltips "%s" > "%t"
// RUN: %diff "%s.expect" "%t"

// This tests shows that, since quantifiers are split, it becomes possible to know more precisely what part of a precondition did not hold at the call site.

method f()
  requires forall y :: y > 0 && y < 0 {
}

method g(x: int) {
  f();
}

function gf(): int
  requires forall y :: y > 0 && y < 0 {
    1
}

function gg(x: int): int {
  gf()
}