public void test_removeChild() throws Exception {
this.addNodeById("8150353254540236423");
this.addNodeById("8150353254540236549");
this.addNodeById("4195712261513743410");
SNode sNode =
SNodeOperations.cast(
this.getNodeById("8150353254540236424"),
"jetbrains.mps.baseLanguage.structure.BlockStatement");
SNode child =
SNodeOperations.cast(
this.getNodeById("8150353254540236551"),
"jetbrains.mps.baseLanguage.structure.LocalVariableDeclarationStatement");
child.getParent().removeChild(child);
sNode.addChild("", child);
StatCountNodeReadAccessInEditorListener listener =
new StatCountNodeReadAccessInEditorListener(sNode);
NodeReadAccessCasterInEditor.setCellBuildNodeReadAccessListener(listener);
sNode.removeChild(child);
this.assertMethod(
"public void jetbrains.mps.smodel.SNode.removeChild(org.jetbrains.mps.openapi.model.SNode)",
listener.getResults().o1);
}
// todo: this method can be called from inference rules - by calling behavior methods,
// todo: in which there are no typechecking context(
public static SNode copyIfNecessary(SNode node) {
if (node != null
&& (node.getParent() != null || node.getModel() != null && node.getModel().isRoot(node))) {
// this copies all the atributes, because can be used in migration scripts
SNode copy = CopyUtil.copy(node, new THashMap<SNode, SNode>(1), true);
return copy;
} else {
return node;
}
}
private boolean canPasteBefore(EditorCell selectedCell, List<SNode> pasteNodes) {
if (!selectedCell.isFirstPositionInBigCell()) return false;
SNode anchor = selectedCell.getSNode();
if (anchor.getParent() == null) return false;
NodeAndRole nodeAndRole =
new NodePaster(pasteNodes).getActualAnchorNode(anchor, anchor.getRoleInParent());
if (nodeAndRole == null) return false;
EditorCell targetCell = selectedCell.getEditor().findNodeCell(nodeAndRole.myNode);
return targetCell != null
&& targetCell.getFirstLeaf(CellConditions.SELECTABLE) == selectedCell
&& new NodePaster(pasteNodes).canPasteRelative(nodeAndRole.myNode);
}
public static SNode copyIfNecessary(SNode node, TypeCheckingContext typeCheckingContext) {
if (node != null
&& (node.getParent() != null || node.getModel() != null && node.getModel().isRoot(node))) {
// this method is used only when quotations create a type
// so it should not copy attributes, for instance generator macros of a certain type
SNode copy = CopyUtil.copy(node, new THashMap<SNode, SNode>(1), false);
if (typeCheckingContext != null) {
if (isRuntimeTypeVariable(copy)) {
typeCheckingContext.registerTypeVariable(copy);
}
}
return copy;
} else {
return node;
}
}