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Doc fixes for ParameterEnvironment #32521

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Merged
bors merged 2 commits into from
Mar 27, 2016
Merged

Doc fixes for ParameterEnvironment #32521

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157ba00
Clarify that ParameterEnvironment::for_item can take impl/trait items…
Manishearth Mar 27, 2016
a3fdf32
from_item is the old name
Manishearth Mar 27, 2016
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5 changes: 3 additions & 2 deletions src/librustc/ty/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1202,6 +1202,7 @@ impl<'a, 'tcx> ParameterEnvironment<'a, 'tcx> {
}
}

/// Construct a parameter environment given an item, impl item, or trait item
pub fn for_item(cx: &'a TyCtxt<'tcx>, id: NodeId) -> ParameterEnvironment<'a, 'tcx> {
match cx.map.find(id) {
Some(ast_map::NodeImplItem(ref impl_item)) => {
Expand Down Expand Up @@ -1341,7 +1342,7 @@ impl<'a, 'tcx> ParameterEnvironment<'a, 'tcx> {
}
_ => {
cx.sess.span_bug(item.span,
"ParameterEnvironment::from_item():
"ParameterEnvironment::for_item():
can't create a parameter \
environment for this kind of item")
}
Expand All @@ -1352,7 +1353,7 @@ impl<'a, 'tcx> ParameterEnvironment<'a, 'tcx> {
ParameterEnvironment::for_item(cx, cx.map.get_parent(id))
}
_ => {
cx.sess.bug(&format!("ParameterEnvironment::from_item(): \
cx.sess.bug(&format!("ParameterEnvironment::for_item(): \
`{}` is not an item",
cx.map.node_to_string(id)))
}
Expand Down