2b92962aa2
- Make `extern fn()` assignable to any closure type, rather than a subtype. - Remove unused int_ty_set and float_ty_set - Refactor variable unification and make it more DRY - Do fn sub/lub/glb on the level of fn_sig - Rename infer::to_str::ToStr to infer::to_str::InferStr - Capitalize names of various types - Correct hashing of FnMeta - Convert various records-of-fns into structs-of-fns. This is both eliminating use of deprecated features and more forwards compatible with fn reform. r=pcwalton
24 lines
750 B
Rust
24 lines
750 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Make sure that fn-to-block coercion isn't incorrectly lifted over
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// other tycons.
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fn main() {
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fn f(f: extern fn(extern fn(extern fn()))) {
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}
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fn g(f: extern fn(fn())) {
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}
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f(g);
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//~^ ERROR mismatched types: expected `extern fn(extern fn(extern fn()))`
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}
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