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Fix trap offset lookup.

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This commit is contained in:
losfair 2019-07-13 00:17:33 +08:00
parent 450109e2bb
commit 977fd1e25e
1 changed files with 21 additions and 3 deletions
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24
lib/runtime-core/src/state.rs
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@ -111,7 +111,13 @@ impl ModuleStateMap {
.unwrap(); .unwrap();
match fsm.call_offsets.get(&(ip - base)) { match fsm.call_offsets.get(&(ip - base)) {
Some(x) => Some((fsm, fsm.diffs[x.diff_id].build_state(fsm))), Some(x) => {
if x.diff_id < fsm.diffs.len() {
Some((fsm, fsm.diffs[x.diff_id].build_state(fsm)))
} else {
None
}
}
None => None, None => None,
} }
} }
@ -132,7 +138,13 @@ impl ModuleStateMap {
.unwrap(); .unwrap();
match fsm.trappable_offsets.get(&(ip - base)) { match fsm.trappable_offsets.get(&(ip - base)) {
Some(x) => Some((fsm, fsm.diffs[x.diff_id].build_state(fsm))), Some(x) => {
if x.diff_id < fsm.diffs.len() {
Some((fsm, fsm.diffs[x.diff_id].build_state(fsm)))
} else {
None
}
}
None => None, None => None,
} }
} }
@ -149,7 +161,13 @@ impl ModuleStateMap {
.unwrap(); .unwrap();
match fsm.loop_offsets.get(&(ip - base)) { match fsm.loop_offsets.get(&(ip - base)) {
Some(x) => Some((fsm, fsm.diffs[x.diff_id].build_state(fsm))), Some(x) => {
if x.diff_id < fsm.diffs.len() {
Some((fsm, fsm.diffs[x.diff_id].build_state(fsm)))
} else {
None
}
}
None => None, None => None,
} }
} }