rust/src/test/ui/macros/macro-backtrace-invalid-internals.rs

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// Macros in statement vs expression position handle backtraces differently.

macro_rules! fake_method_stmt {
     () => {
          1.fake() //~ ERROR no method
     }
}

macro_rules! fake_field_stmt {
     () => {
          1.fake //~ ERROR doesn't have fields
     }
}

macro_rules! fake_anon_field_stmt {
     () => {
          (1).0 //~ ERROR doesn't have fields
     }
}

macro_rules! fake_method_expr {
     () => {
          1.fake() //~ ERROR no method
     }
}

macro_rules! fake_field_expr {
     () => {
          1.fake //~ ERROR doesn't have fields
     }
}

macro_rules! fake_anon_field_expr {
     () => {
          (1).0 //~ ERROR doesn't have fields
     }
}

macro_rules! real_method_stmt {
     () => {
          2.0.recip() //~ ERROR can't call method `recip` on ambiguous numeric type `{float}`
     }
}

macro_rules! real_method_expr {
     () => {
          2.0.recip() //~ ERROR can't call method `recip` on ambiguous numeric type `{float}`
     }
}

fn main() {
    fake_method_stmt!();
    fake_field_stmt!();
    fake_anon_field_stmt!();
    real_method_stmt!();

    let _ = fake_method_expr!();
    let _ = fake_field_expr!();
    let _ = fake_anon_field_expr!();
    let _ = real_method_expr!();
}