private static void appendClassSignature(final StringBuilder builder, final DartClass dartClass) {
if (dartClass.isEnum()) {
builder.append("enum <b>").append(dartClass.getName()).append("</b>");
return;
}
if (dartClass.isAbstract()) {
builder.append("abstract ");
}
builder.append("class <b>").append(dartClass.getName()).append("</b>");
appendTypeParams(builder, dartClass.getTypeParameters());
final List<DartType> mixins = dartClass.getMixinsList();
final DartType superClass = dartClass.getSuperClass();
if (superClass != null) {
builder.append(" extends ").append(StringUtil.escapeXml(superClass.getText()));
}
if (!mixins.isEmpty()) {
builder.append(" with ");
appendDartTypeList(builder, mixins);
}
final List<DartType> implementsList = dartClass.getImplementsList();
if (!implementsList.isEmpty()) {
builder.append(" implements ");
appendDartTypeList(builder, implementsList);
}
}
private static void appendVariableSignature(
final StringBuilder builder, final DartComponent component, final DartType type) {
if (type == null) {
builder.append("var ");
} else {
builder.append(type.getReferenceExpression().getText());
appendTypeArguments(builder, type);
builder.append(" ");
}
builder.append("<b>").append(component.getName()).append("</b>");
}
private static void appendTypeArguments(
final @NotNull StringBuilder builder, final @NotNull DartType type) {
final DartTypeArguments typeArguments = type.getTypeArguments();
if (typeArguments != null) {
final DartTypeList typeList = typeArguments.getTypeList();
final List<DartType> children = typeList.getTypeList();
if (!children.isEmpty()) {
builder.append("<");
for (Iterator<DartType> iter = children.iterator(); iter.hasNext(); ) {
DartType child = iter.next();
builder.append(child.getFirstChild().getText());
appendTypeArguments(builder, child);
if (iter.hasNext()) {
builder.append(", ");
}
}
builder.append(">");
}
}
}
@Override
public void showParameterInfo(@NotNull PsiElement element, CreateParameterInfoContext context) {
DartFunctionDescription functionDescription = null;
if (element instanceof DartCallExpression) {
functionDescription = DartFunctionDescription.tryGetDescription((DartCallExpression) element);
} else if (element instanceof DartNewExpression) {
final DartNewExpression newExpression = (DartNewExpression) element;
final DartType type = newExpression.getType();
final DartClassResolveResult classResolveResult = DartResolveUtil.resolveClassByType(type);
PsiElement psiElement = ((DartNewExpression) element).getReferenceExpression();
psiElement = psiElement == null && type != null ? type.getReferenceExpression() : psiElement;
final PsiElement target = psiElement != null ? ((DartReference) psiElement).resolve() : null;
if (target instanceof DartComponentName) {
functionDescription =
DartFunctionDescription.createDescription(
(DartComponent) target.getParent(), classResolveResult);
}
}
if (functionDescription != null && functionDescription.getParameters().length > 0) {
context.setItemsToShow(new Object[] {functionDescription});
context.showHint(element, element.getTextRange().getStartOffset(), this);
}
}