How to use

getBufferSequence

method

in

com.intellij.lexer.Lexer

@NotNull
public CharSequence getBufferSequence() {
  // elixirLexer only has a subsequence that is `eexLexer`'s
  return eexLexer.getBufferSequence();
}

@NotNull
@Override
public CharSequence getBufferSequence() {
 return myMainLexer.getBufferSequence();
}