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dfa: spare some minor cpu cycles

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This commit is contained in:
peter
2013-09-19 18:32:07 +02:00
parent c266bd2355
commit 2765dab243
1 changed files with 8 additions and 8 deletions
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java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/DfaMemoryStateImpl.java
+8 -8
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@@ -219,14 +219,15 @@ public class DfaMemoryStateImpl implements DfaMemoryState {
if (var == value) return;
flushVariable(var);
DfaVariableState varState = getVariableState(var);
if (value instanceof DfaUnknownValue) {
getVariableState(var).setNullable(false);
varState.setNullable(false);
return;
}
getVariableState(var).setValue(value);
varState.setValue(value);
if (value instanceof DfaTypeValue) {
getVariableState(var).setNullable(((DfaTypeValue)value).isNullable());
varState.setNullable(((DfaTypeValue)value).isNullable());
DfaRelationValue dfaInstanceof = myFactory.getRelationFactory().createRelation(var, value, JavaTokenType.INSTANCEOF_KEYWORD, false);
if (((DfaTypeValue)value).isNotNull()) {
applyCondition(dfaInstanceof);
@@ -240,15 +241,15 @@ public class DfaMemoryStateImpl implements DfaMemoryState {
applyCondition(dfaEqual);
if (value instanceof DfaVariableValue) {
myVariableStates.put(var, getVariableState((DfaVariableValue)value).clone());
myVariableStates.put(var, varState = getVariableState((DfaVariableValue)value).clone());
}
else if (value instanceof DfaBoxedValue) {
getVariableState(var).setNullable(false);
varState.setNullable(false);
applyCondition(compareToNull(var, true));
}
}
if (getVariableState(var).isNotNull()) {
if (varState.isNotNull()) {
applyCondition(compareToNull(var, true));
}
}
@@ -520,8 +521,7 @@ public class DfaMemoryStateImpl implements DfaMemoryState {
DfaVariableValue dfaVar = (DfaVariableValue)left;
DfaTypeValue dfaType = (DfaTypeValue)dfaCond.getRightOperand();
final DfaVariableState varState = getVariableState(dfaVar);
return isNull(dfaVar) || varState.setInstanceofValue(dfaType);
return isNull(dfaVar) || getVariableState(dfaVar).setInstanceofValue(dfaType);
}
@Override