| is_obj(r, st), st[r0 -- _type] .type ≤ fs .type, fs ' ∈ instfields(st[r -- _type] .type .class), junkrefs(str, r1 ' + acc, ty, st[r -- fs ', refval(r0)]), ∀ str, ty, st, r0, r, fs. ¬ junkrefs(str, acc, ty, st) ∧ ¬ junkref(str, r0, st) ∧ is_obj(r, st) ∧ st[r0 -- _type] .type ≤ fs .type ∧ r0 ≠ jvmref ∧ fs ' ∈ instfields(st[r -- _type] .type .class) → ¬ junkrefs(str, acc, ty, st[r -- fs ', refval(r0)]) ⊦ r0 = jvmref, junkref(str, r0, st), junkrefs(str, r1 ' + acc, ty, st) |
fs = mkfs(class, ty0, fieldvar), is_obj(r, st), st[r0 -- _type] .type ≤ ty0, fs ' ∈ instfields(st[r -- _type] .type .class), junkrefs(str, r1 ' + acc, ty, st[r -- fs ', refval(r0)]), ∀ str, ty, st, r0, r, fs. ¬ junkrefs(str, acc, ty, st) ∧ ¬ junkref(str, r0, st) ∧ is_obj(r, st) ∧ st[r0 -- _type] .type ≤ fs .type ∧ r0 ≠ jvmref ∧ fs ' ∈ instfields(st[r -- _type] .type .class) → ¬ junkrefs(str, acc, ty, st[r -- fs ', refval(r0)]) ⊦ r0 = jvmref, junkref(str, r0, st), junkrefs(str, r1 ' + acc, ty, st)
[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ class = fs .class ∧ ty = fs .type ∧ fieldvar = fs .field ↔ fs = mkfs(class, ty, fieldvar)])], [EXTRATERMS : (fs, class, ty0, fieldvar)]]