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debuginfo: Fix regression in namespace handling for struct types. #33225

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May 6, 2016
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6 changes: 3 additions & 3 deletions src/librustc_trans/debuginfo/metadata.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1159,12 +1159,12 @@ fn prepare_struct_metadata<'a, 'tcx>(cx: &CrateContext<'a, 'tcx>,
let struct_name = compute_debuginfo_type_name(cx, struct_type, false);
let struct_llvm_type = type_of::in_memory_type_of(cx, struct_type);

let (variant, substs) = match struct_type.sty {
ty::TyStruct(def, substs) => (def.struct_variant(), substs),
let (struct_def_id, variant, substs) = match struct_type.sty {
ty::TyStruct(def, substs) => (def.did, def.struct_variant(), substs),
_ => bug!("prepare_struct_metadata on a non-struct")
};

let (containing_scope, _) = get_namespace_and_span_for_item(cx, variant.did);
let (containing_scope, _) = get_namespace_and_span_for_item(cx, struct_def_id);

let struct_metadata_stub = create_struct_stub(cx,
struct_llvm_type,
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70 changes: 70 additions & 0 deletions src/test/debuginfo/struct-namespace.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,70 @@
// Copyright 2013-2016 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.

// ignore-gdb
// compile-flags:-g
// min-lldb-version: 310

// Check that structs get placed in the correct namespace

// lldb-command:run
// lldb-command:p struct1
// lldb-check:(struct_namespace::Struct1) $0 = [...]
// lldb-command:p struct2
// lldb-check:(struct_namespace::Struct2) $1 = [...]

// lldb-command:p mod1_struct1
// lldb-check:(struct_namespace::mod1::Struct1) $2 = [...]
// lldb-command:p mod1_struct2
// lldb-check:(struct_namespace::mod1::Struct2) $3 = [...]

#![allow(unused_variables)]
#![allow(dead_code)]
#![feature(omit_gdb_pretty_printer_section)]
#![omit_gdb_pretty_printer_section]

struct Struct1 {
a: u32,
b: u64,
}

struct Struct2(u32);

mod mod1 {

pub struct Struct1 {
pub a: u32,
pub b: u64,
}

pub struct Struct2(pub u32);
}


fn main() {
let struct1 = Struct1 {
a: 0,
b: 1,
};

let struct2 = Struct2(2);

let mod1_struct1 = mod1::Struct1 {
a: 3,
b: 4,
};

let mod1_struct2 = mod1::Struct2(5);

zzz(); // #break
}

#[inline(never)]
fn zzz() {()}
98 changes: 51 additions & 47 deletions src/tools/compiletest/src/runtest.rs
Original file line number Diff line number Diff line change
Expand Up @@ -880,58 +880,62 @@ fn cleanup_debug_info_options(options: &Option<String>) -> Option<String> {

fn check_debugger_output(debugger_run_result: &ProcRes, check_lines: &[String]) {
let num_check_lines = check_lines.len();
if num_check_lines > 0 {

let mut check_line_index = 0;
for line in debugger_run_result.stdout.lines() {
if check_line_index >= num_check_lines {
break;
}

if check_single_line(line, &(check_lines[check_line_index])[..]) {
check_line_index += 1;
}
}
if check_line_index != num_check_lines && num_check_lines > 0 {
fatal_proc_rec(None, &format!("line not found in debugger output: {}",
check_lines[check_line_index]),
debugger_run_result);
}

fn check_single_line(line: &str, check_line: &str) -> bool {
// Allow check lines to leave parts unspecified (e.g., uninitialized
// bits in the wrong case of an enum) with the notation "[...]".
let check_fragments: Vec<Vec<String>> =
check_lines.iter().map(|s| {
s
.trim()
.split("[...]")
.map(str::to_owned)
.collect()
}).collect();
// check if each line in props.check_lines appears in the
// output (in order)
let mut i = 0;
for line in debugger_run_result.stdout.lines() {
let mut rest = line.trim();
let mut first = true;
let mut failed = false;
for frag in &check_fragments[i] {
let found = if first {
if rest.starts_with(frag) {
Some(0)
} else {
None
}
} else {
rest.find(frag)
};
match found {
None => {
failed = true;
break;
}
Some(i) => {
rest = &rest[(i + frag.len())..];
}
}
first = false;
}
if !failed && rest.is_empty() {
i += 1;
// bits in the wrong case of an enum) with the notation "[...]".
let line = line.trim();
let check_line = check_line.trim();
let can_start_anywhere = check_line.starts_with("[...]");
let can_end_anywhere = check_line.ends_with("[...]");

let check_fragments: Vec<&str> = check_line.split("[...]")
.filter(|frag| !frag.is_empty())
.collect();
if check_fragments.is_empty() {
return true;
}

let (mut rest, first_fragment) = if can_start_anywhere {
match line.find(check_fragments[0]) {
Some(pos) => (&line[pos + check_fragments[0].len() ..], 1),
None => return false
}
if i == num_check_lines {
// all lines checked
break;
} else {
(line, 0)
};

for fragment_index in first_fragment .. check_fragments.len() {
let current_fragment = check_fragments[fragment_index];
match rest.find(current_fragment) {
Some(pos) => {
rest = &rest[pos + current_fragment.len() .. ];
}
None => return false
}
}
if i != num_check_lines {
fatal_proc_rec(None, &format!("line not found in debugger output: {}",
check_lines.get(i).unwrap()),
debugger_run_result);

if !can_end_anywhere && !rest.is_empty() {
return false;
}

return true;
}
}

Expand Down