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;
}
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();
}
@Override
public <STE, SE> IBacktranslatedCFG<?, ?> translateCFG(final IBacktranslatedCFG<?, STE> cfg) {
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> current = new Stack<ITranslator<?, ?, ?, ?, ?, ?>>();
boolean canTranslate = false;
for (final ITranslator<?, ?, ?, ?, ?, ?> trans : mTranslationSequence) {
current.push(trans);
if (trans.getSourceTraceElementClass().isAssignableFrom(cfg.getTraceElementClass())) {
canTranslate = true;
}
}
if (!canTranslate) {
throw new IllegalArgumentException(
"You cannot translate "
+ cfg
+ " with this backtranslation service, as there is no compatible ITranslator available");
}
if (!current.peek().getSourceTraceElementClass().isAssignableFrom(cfg.getTraceElementClass())) {
throw new IllegalArgumentException(
"You cannot translate "
+ cfg
+ " with this backtranslation service, as the last ITranslator in this chain is not compatible");
}
return translateCFG(current, cfg);
}
@SuppressWarnings("unchecked")
private <TE, SE> TE translateExpression(
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> remaining, final SE expression) {
if (remaining.isEmpty()) {
return (TE) expression;
} else {
final ITranslator<?, ?, SE, TE, ?, ?> tmp = (ITranslator<?, ?, SE, TE, ?, ?>) remaining.pop();
return translateExpression(remaining, tmp.translateExpression(expression));
}
}
@SuppressWarnings("unchecked")
private <TTE, STE> List<TTE> translateTrace(
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> remaining, final List<STE> trace) {
if (remaining.isEmpty()) {
return (List<TTE>) trace;
} else {
final ITranslator<STE, TTE, ?, ?, ?, ?> translator =
(ITranslator<STE, TTE, ?, ?, ?, ?>) remaining.pop();
return translateTrace(remaining, translator.translateTrace(trace));
}
}
@SuppressWarnings("unchecked")
private <STE, TTE, SE, TE, SVL, TVL> IBacktranslatedCFG<TVL, TTE> translateCFG(
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> remaining,
final IBacktranslatedCFG<SVL, STE> cfg) {
if (remaining.isEmpty()) {
return (IBacktranslatedCFG<TVL, TTE>) cfg;
} else {
final ITranslator<STE, TTE, SE, TE, SVL, TVL> translator =
(ITranslator<STE, TTE, SE, TE, SVL, TVL>) remaining.pop();
final IBacktranslatedCFG<?, TTE> translated = translator.translateCFG(cfg);
return translateCFG(remaining, translated);
}
}
@SuppressWarnings("unchecked")
private <STE, TTE, SE, TE> IProgramExecution<TTE, TE> translateProgramExecution(
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> remaining,
final IProgramExecution<STE, SE> programExecution) {
if (remaining.isEmpty()) {
return (IProgramExecution<TTE, TE>) programExecution;
} else {
final ITranslator<STE, TTE, SE, TE, ?, ?> translator =
(ITranslator<STE, TTE, SE, TE, ?, ?>) remaining.pop();
final IProgramExecution<TTE, TE> translated =
translator.translateProgramExecution(programExecution);
return translateProgramExecution(remaining, translated);
}
}
@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);
}
private <STE> Stack<ITranslator<?, ?, ?, ?, ?, ?>> prepareTranslatorStack(
final Class<STE> clazz) {
final Stack<ITranslator<?, ?, ?, ?, ?, ?>> current = new Stack<ITranslator<?, ?, ?, ?, ?, ?>>();
boolean canTranslate = false;
for (final ITranslator<?, ?, ?, ?, ?, ?> trans : mTranslationSequence) {
current.push(trans);
if (trans.getSourceTraceElementClass().isAssignableFrom(clazz)) {
canTranslate = true;
}
}
if (!canTranslate) {
throw new IllegalArgumentException(
"You cannot translate "
+ clazz.getSimpleName()
+ " with this backtranslation service, as there is no compatible ITranslator available");
}
if (!current.peek().getSourceTraceElementClass().isAssignableFrom(clazz)) {
throw new IllegalArgumentException(
"You cannot translate "
+ clazz.getSimpleName()
+ " with this backtranslation service, as the last ITranslator in this chain is not compatible");
}
return current;
}
@SuppressWarnings("unchecked")
private <TE> String translateExpressionToString(
final TE expression, final ITranslator<?, ?, ?, ?, ?, ?> trans) {
final ITranslator<?, ?, ?, TE, ?, ?> last = (ITranslator<?, ?, ?, TE, ?, ?>) trans;
return last.targetExpressionToString(expression);
}
@SuppressWarnings("unchecked")
private <TTE> List<String> translateTraceToString(
final List<TTE> trace, final ITranslator<?, ?, ?, ?, ?, ?> trans) {
final ITranslator<?, TTE, ?, ?, ?, ?> last = (ITranslator<?, TTE, ?, ?, ?, ?>) trans;
return last.targetTraceToString(trace);
}