@Nullable
private String evaluate(PsiExpression expression, Map<String, Computable<String>> arguments) {
if (expression instanceof PsiPolyadicExpression) {
PsiPolyadicExpression binaryExpression = (PsiPolyadicExpression) expression;
if (binaryExpression.getOperationTokenType() == JavaTokenType.PLUS) {
String r = "";
for (PsiExpression op : binaryExpression.getOperands()) {
String lhs = evaluate(op, arguments);
if (lhs == null) return null;
r += lhs;
}
return r;
}
} else if (expression instanceof PsiLiteralExpression) {
final Object value = ((PsiLiteralExpression) expression).getValue();
if (value instanceof String) {
return (String) value;
}
} else if (expression instanceof PsiReferenceExpression) {
final PsiElement result = ((PsiReferenceExpression) expression).resolve();
if (result instanceof PsiParameter) {
final String name = ((PsiParameter) result).getName();
final Computable<String> arg = arguments.get(name);
return arg == null ? null : arg.compute();
}
if (result instanceof PsiVariable) {
final PsiExpression initializer = ((PsiVariable) result).getInitializer();
if (initializer != null) {
return evaluate(initializer, arguments);
}
}
} else if (expression instanceof PsiMethodCallExpression) {
final PsiMethodCallExpression methodCall = (PsiMethodCallExpression) expression;
final String callText = methodCall.getMethodExpression().getText();
if (callText.equals("getTestName")) {
final PsiExpression[] psiExpressions = methodCall.getArgumentList().getExpressions();
if (psiExpressions.length == 1) {
if ("true".equals(psiExpressions[0].getText()) && !StringUtil.isEmpty(myTestName)) {
return UsefulTestCase.lowercaseFirstLetter(myTestName, true);
}
return myTestName;
}
}
}
if (expression != null) {
myLogMessages.add("Failed to evaluate " + expression.getText());
}
return null;
}
@NotNull
public List<String> createConversions(
@NotNull PsiPolyadicExpression expression, PsiType expectedType) {
PsiExpression[] arguments = expression.getOperands();
int length = arguments.length;
List<String> conversions = new LinkedList<String>();
List<PsiType> expectedTypes = Collections.nCopies(length, expectedType);
List<PsiType> actualTypes = new LinkedList<PsiType>();
for (PsiExpression e : arguments) actualTypes.add(e.getType());
assert actualTypes.size() == expectedTypes.size() : "The type list must have the same length";
for (int i = 0; i < actualTypes.size(); i++)
conversions.add(i, createConversionForExpression(arguments[i], expectedTypes.get(i)));
return conversions;
}