user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Don't allow assignment to mutable-wha?

Browse source
This commit is contained in:
Brian Anderson 2011-10-17 15:41:38 -07:00
parent 454333368c
commit 4d9d889dbf
6 changed files with 73 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/comp/middle/mut.rs
View file

@ -49,19 +49,19 @@ fn expr_root(tcx: ty::ctxt, ex: @expr, autoderef: bool) ->
alt copy ex.node {
expr_field(base, ident) {
let auto_unbox = maybe_auto_unbox(tcx, ty::expr_ty(tcx, base));
let mut = false;
let is_mut = false;
alt ty::struct(tcx, auto_unbox.t) {
ty::ty_rec(fields) {
for fld: ty::field in fields {
if str::eq(ident, fld.ident) {
mut = fld.mt.mut != imm;
is_mut = fld.mt.mut == mut;
break;
}
}
}
ty::ty_obj(_) { }
}
ds += [@{mut: mut, kind: field, outer_t: auto_unbox.t}];
ds += [@{mut: is_mut, kind: field, outer_t: auto_unbox.t}];
ds += auto_unbox.ds;
ex = base;
}
@ -70,7 +70,7 @@ fn expr_root(tcx: ty::ctxt, ex: @expr, autoderef: bool) ->
alt ty::struct(tcx, auto_unbox.t) {
ty::ty_vec(mt) {
ds +=
[@{mut: mt.mut != imm,
[@{mut: mt.mut == mut,
kind: index,
outer_t: auto_unbox.t}];
}
@ -84,15 +84,15 @@ fn expr_root(tcx: ty::ctxt, ex: @expr, autoderef: bool) ->
expr_unary(op, base) {
if op == deref {
let base_t = ty::expr_ty(tcx, base);
let mut = false;
let is_mut = false;
alt ty::struct(tcx, base_t) {
ty::ty_box(mt) { mut = mt.mut != imm; }
ty::ty_uniq(mt) { mut = mt.mut != imm; }
ty::ty_box(mt) { is_mut = mt.mut == mut; }
ty::ty_uniq(mt) { is_mut = mt.mut == mut; }
ty::ty_res(_, _, _) { }
ty::ty_tag(_, _) { }
ty::ty_ptr(mt) { mut = mt.mut != imm; }
ty::ty_ptr(mt) { is_mut = mt.mut == mut; }
}
ds += [@{mut: mut, kind: unbox, outer_t: base_t}];
ds += [@{mut: is_mut, kind: unbox, outer_t: base_t}];
ex = base;
} else { break; }
}