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debuginfo: Don't crash when encountering global variable with unknown source span.

This commit is contained in:
Michael Woerister 2014-07-10 15:38:57 +02:00
parent 6c35d513ce
commit 731f44de45
1 changed files with 7 additions and 6 deletions
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13
src/librustc/middle/trans/debuginfo.rs
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@ -798,15 +798,16 @@ pub fn create_global_var_metadata(cx: &CrateContext,
var_item).as_slice())
};
let filename = span_start(cx, span).file.name.clone();
let file_metadata = file_metadata(cx, filename.as_slice());
let (file_metadata, line_number) = if span != codemap::DUMMY_SP {
let loc = span_start(cx, span);
(file_metadata(cx, loc.file.name.as_slice()), loc.line as c_uint)
} else {
(UNKNOWN_FILE_METADATA, UNKNOWN_LINE_NUMBER)
};
let is_local_to_unit = is_node_local_to_unit(cx, node_id);
let loc = span_start(cx, span);
let variable_type = ty::node_id_to_type(cx.tcx(), node_id);
let type_metadata = type_metadata(cx, variable_type, span);
let namespace_node = namespace_for_item(cx, ast_util::local_def(node_id));
let var_name = token::get_ident(ident).get().to_string();
let linkage_name =
@ -821,7 +822,7 @@ pub fn create_global_var_metadata(cx: &CrateContext,
var_name,
linkage_name,
file_metadata,
loc.line as c_uint,
line_number,
type_metadata,
is_local_to_unit,
global,