public ParseTree getPatternTree() {
		return patternTree;
	}
Get the tree pattern as a {@link ParseTree}. The rule and token tags from
the pattern are present in the parse tree as terminal nodes with a symbol
of type {@link RuleTagToken} or {@link TokenTagToken}.

@return The tree pattern as a {@link ParseTree}.
runtime/Java/src/org/antlr/v4/runtime/tree/pattern/ParseTreePattern.java