private boolean isAllowedNext(
final ITranslator<?, ?, ?, ?, ?, ?> current, final ITranslator<?, ?, ?, ?, ?, ?> next) {
// source is e.g. RcfgElement, target is e.g. BoogieASTNode
// meaning, source is the output of the tool, target the input
return current.getSourceExpressionClass() == next.getTargetExpressionClass()
&& current.getSourceTraceElementClass() == next.getTargetTraceElementClass();
}
private <SE> Stack<ITranslator<?, ?, ?, ?, ?, ?>> prepareExpressionStack(
final SE expression, final Class<SE> clazz) {
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> current = new Stack<ITranslator<?, ?, ?, ?, ?, ?>>();
boolean canTranslate = false;
for (final ITranslator<?, ?, ?, ?, ?, ?> trans : mTranslationSequence) {
current.push(trans);
if (trans.getSourceExpressionClass().isAssignableFrom(clazz)) {
canTranslate = true;
}
}
if (!canTranslate) {
throw new IllegalArgumentException(
"You cannot translate "
+ expression.getClass().getName()
+ " with this backtranslation service, as there is no compatible "
+ "ITranslator available. Available translators: "
+ toString());
}
if (!current.peek().getSourceExpressionClass().isAssignableFrom(clazz)) {
throw new IllegalArgumentException(
"You cannot translate "
+ expression.getClass().getName()
+ " with this backtranslation service, as the last ITranslator in "
+ "this chain is not compatible. Available translators: "
+ toString());
}
return current;
}
@Override
public <STE, SE> IProgramExecution<?, ?> translateProgramExecution(
final IProgramExecution<STE, SE> programExecution) {
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> current = new Stack<ITranslator<?, ?, ?, ?, ?, ?>>();
boolean canTranslate = false;
for (final ITranslator<?, ?, ?, ?, ?, ?> trans : mTranslationSequence) {
current.push(trans);
if (trans
.getSourceTraceElementClass()
.isAssignableFrom(programExecution.getTraceElementClass())
&& trans
.getSourceExpressionClass()
.isAssignableFrom(programExecution.getExpressionClass())) {
canTranslate = true;
}
}
if (!canTranslate) {
throw new IllegalArgumentException(
"You cannot translate "
+ programExecution
+ " with this backtranslation service, as there is no compatible ITranslator available");
}
if (!current
.peek()
.getSourceTraceElementClass()
.isAssignableFrom(programExecution.getTraceElementClass())
|| !current
.peek()
.getSourceExpressionClass()
.isAssignableFrom(programExecution.getExpressionClass())) {
throw new IllegalArgumentException(
"You cannot translate "
+ programExecution
+ " with this backtranslation service, as the last ITranslator in this chain is not compatible");
}
return translateProgramExecution(current, programExecution);
}