private static boolean whileStatementsAreEquivalent(
@NotNull GrWhileStatement statement1, @NotNull GrWhileStatement statement2) {
final GrExpression condition1 = (GrExpression) statement1.getCondition();
final GrExpression condition2 = (GrExpression) statement2.getCondition();
final GrStatement body1 = statement1.getBody();
final GrStatement body2 = statement2.getBody();
return expressionsAreEquivalent(condition1, condition2)
&& statementsAreEquivalent(body1, body2);
}
public void visitWhileStatement(GrWhileStatement whileStatement) {
final InstructionImpl instruction = startNode(whileStatement);
final GrCondition condition = whileStatement.getCondition();
if (condition != null) {
condition.accept(this);
}
if (!alwaysTrue(condition)) {
addPendingEdge(whileStatement, myHead); // break
}
final GrCondition body = whileStatement.getBody();
if (body != null) {
body.accept(this);
}
checkPending(instruction); // check for breaks targeted here
if (myHead != null) addEdge(myHead, instruction); // loop
interruptFlow();
finishNode(instruction);
}