rust/src/test/compile-fail/impure-pred.rs

// -*- rust -*-
// error-pattern: Pure function calls function not known to be pure

fn g() -> () {}

pred f(int q) -> bool {
  g();
  ret true;
}

fn main() {
  auto x = 0;

  check f(x);
}
Test cases for pred / check stuff 2011-05-04 13:32:06 -05:00			`// -- rust --`
Serialize constraints in types (literal arguments still not supported) This involved, in part, changing the ast::def type so that a def_fn has a "purity" field. This lets the typechecker determine whether functions defined in other crates are pure. It also required updating some error messages in tests. As a test for cross-crate constrained functions, I added a safe_slice function to std::str (slice(), with one of the asserts replaced with a function precondition) and some test cases (various versions of fn-constraint.rs) that call it. Also, I changed "fn" to "pred" for some of the boolean functions in std::uint. 2011-06-20 19:29:54 -05:00			`// error-pattern: Pure function calls function not known to be pure`
Test cases for pred / check stuff 2011-05-04 13:32:06 -05:00
			`fn g() -> () {}`

Prohibit trailing whitespace under 'tidy' script. Clean up all caught cases. 2011-07-13 17:44:09 -05:00			`pred f(int q) -> bool {`
Test cases for pred / check stuff 2011-05-04 13:32:06 -05:00			`g();`
			`ret true;`
			`}`

			`fn main() {`
			`auto x = 0;`

Prohibit trailing whitespace under 'tidy' script. Clean up all caught cases. 2011-07-13 17:44:09 -05:00			`check f(x);`
Test cases for pred / check stuff 2011-05-04 13:32:06 -05:00			`}`