private void addToExistingImport(PyImportElement src) {
final PyElementGenerator gen = PyElementGenerator.getInstance(myTarget.getProject());
// did user choose 'import' or 'from import'?
PsiElement parent = src.getParent();
if (parent instanceof PyFromImportStatement) {
// add another import element right after the one we got
PsiElement newImportElement = gen.createImportElement(LanguageLevel.getDefault(), myName);
parent.add(newImportElement);
} else { // just 'import'
// all we need is to qualify our target
myTarget.replace(
gen.createExpressionFromText(
LanguageLevel.forElement(myTarget), src.getVisibleName() + "." + myName));
}
}
/**
* Helper method that builds an import path, handling all these "import foo", "import foo as bar",
* "from bar import foo", etc. Either importPath or importSource must be not null.
*
* @param name what is ultimately imported.
* @param importPath known path to import the name.
* @param source known ImportElement to import the name; its 'as' clause is used if present.
* @return a properly qualified name.
*/
@NotNull
public static String getQualifiedName(
@NotNull String name, @Nullable QualifiedName importPath, @Nullable PyImportElement source) {
final StringBuilder sb = new StringBuilder();
if (source != null) {
final PsiElement parent = source.getParent();
if (parent instanceof PyFromImportStatement) {
sb.append(name);
} else {
sb.append(source.getVisibleName()).append(".").append(name);
}
} else {
if (importPath != null && importPath.getComponentCount() > 0) {
sb.append(importPath).append(".");
}
sb.append(name);
}
return sb.toString();
}
@NotNull
public String getPresentableText(@NotNull String myName) {
final StringBuilder sb = new StringBuilder(getQualifiedName(myName, myPath, myImportElement));
PsiElement parent = null;
if (myImportElement != null) {
parent = myImportElement.getParent();
}
if (myImportable instanceof PyFunction) {
sb.append(((PyFunction) myImportable).getParameterList().getPresentableText(false));
} else if (myImportable instanceof PyClass) {
final List<String> supers =
ContainerUtil.mapNotNull(
((PyClass) myImportable).getSuperClasses(),
new Function<PyClass, String>() {
@Override
public String fun(PyClass cls) {
return PyUtil.isObjectClass(cls) ? null : cls.getName();
}
});
if (!supers.isEmpty()) {
sb.append("(");
StringUtil.join(supers, ", ", sb);
sb.append(")");
}
}
if (parent instanceof PyFromImportStatement) {
sb.append(" from ");
final PyFromImportStatement fromImportStatement = (PyFromImportStatement) parent;
sb.append(StringUtil.repeat(".", fromImportStatement.getRelativeLevel()));
final PyReferenceExpression source = fromImportStatement.getImportSource();
if (source != null) {
sb.append(source.getReferencedName());
}
}
return sb.toString();
}
