Examples of com.intellij.psi.PsiElement.addBefore()

com.intellij.psi.PsiElement.addBefore()
Adds a child to this PSI element, before the specified anchor element. @param element the child element to add. @param anchor the anchor before which the child element is inserted (must be a child of this PSI element) @return the element which was actually added (either element or its copy). @throws IncorrectOperationException if the modification is not supported or not possible for some reason.

                                               List<PsiElement> occurrences,
                                               boolean replaceAll) {
    PsiElement anchor = replaceAll ? findAnchor(occurrences) : findAnchor(expression);
    assert anchor != null;
    final PsiElement parent = anchor.getParent();
    return parent.addBefore(declaration, anchor);
  }
}

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  private static PsiElement addDeclaration(@NotNull PsiElement declaration, @NotNull List<PsiElement> occurrences) {
    PsiElement anchor = findAnchor(occurrences);
    assert anchor != null;
    PsiElement parent = anchor.getParent();
    return parent.addBefore(declaration, anchor);
  }


  @Nullable
  private static PsiElement replaceLeftmostArgumentDefinition(@NotNull PsiElement declaration, @NotNull List<PsiElement> occurrences) {
    PsiElement argDef = extractLeftmostArgumentDefinition(occurrences);

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            PsiElement added = functionParent.addAfter(newFunction, function);
            functionParent.addBefore(newLine(), added);
            functionParent.addAfter(newLine(),  function);


            PsiElement parent = first.getParent();
            parent.addBefore(ErlangElementFactory.createExpressionFromText(getProject(), bindingsS + signature), first);
            parent.deleteChildRange(first, last);
          }


          private PsiElement newLine() {
            return ErlangElementFactory.createLeafFromText(project, "\n");

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