// Test rules governing higher-order pure fns. fn assign_to_pure(x: pure fn(), y: fn(), z: unsafe fn()) { let a: pure fn() = x; let b: pure fn() = y; //! ERROR expected pure fn but found impure fn let c: pure fn() = z; //! ERROR expected pure fn but found unsafe fn } fn assign_to_impure(x: pure fn(), y: fn(), z: unsafe fn()) { let h: fn() = x; let i: fn() = y; let j: fn() = z; //! ERROR expected impure fn but found unsafe fn } fn assign_to_unsafe(x: pure fn(), y: fn(), z: unsafe fn()) { let m: unsafe fn() = x; let n: unsafe fn() = y; let o: unsafe fn() = z; } fn assign_to_pure2(x: pure fn@(), y: fn@(), z: unsafe fn@()) { let a: pure fn() = x; let b: pure fn() = y; //! ERROR expected pure fn but found impure fn let c: pure fn() = z; //! ERROR expected pure fn but found unsafe fn let a: pure fn~() = x; //! ERROR closure protocol mismatch (fn~ vs fn@) let b: pure fn~() = y; //! ERROR closure protocol mismatch (fn~ vs fn@) let c: pure fn~() = z; //! ERROR closure protocol mismatch (fn~ vs fn@) let a: unsafe fn~() = x; //! ERROR closure protocol mismatch (fn~ vs fn@) let b: unsafe fn~() = y; //! ERROR closure protocol mismatch (fn~ vs fn@) let c: unsafe fn~() = z; //! ERROR closure protocol mismatch (fn~ vs fn@) } fn main() { }