Example usage for org.antlr.v4.runtime WritableToken setText

Introduction

In this page you can find the example usage for org.antlr.v4.runtime WritableToken setText.

Prototype

public void setText(String text);

Source Link

Usage

From source file:org.eclipse.titan.common.parsers.cfg.ConfigTreeNodeUtilities.java

License:Open Source License

/**
 * Changes the text of a parse tree/*from   w  w  w . j a  va 2s. c  o m*/
 * @param aParseTree parse tree to modify
 * @param aText new text
 */
public static void setText(final ParseTree aParseTree, final String aText) {
    if (aParseTree == null) {
        ErrorReporter.INTERNAL_ERROR("ConfigTreeNodeUtilities.setText(): aParseTree == null");
        return;
    }
    if (aParseTree instanceof ParserRuleContext) {
        final ParserRuleContext rule = (ParserRuleContext) aParseTree;
        // in case of a rule we don't want to keep the original sub-tree structure,
        // just delete it and replace the children with an AddedParseTree
        if (rule.children != null) {
            rule.children.clear();
        } else {
            rule.children = new ArrayList<ParseTree>();
        }
        ParseTree newNode = new AddedParseTree(aText);
        addChild(rule, newNode);
    } else if (aParseTree instanceof AddedParseTree) {
        final AddedParseTree node = (AddedParseTree) aParseTree;
        node.setText(aText);
    } else if (aParseTree instanceof TerminalNodeImpl) {
        final TerminalNodeImpl node = (TerminalNodeImpl) aParseTree;
        final Token t = node.symbol;
        if (t instanceof WritableToken) {
            final WritableToken ct = (WritableToken) t;
            ct.setText(aText);
        } else {
            ErrorReporter.INTERNAL_ERROR("ConfigTreeNodeUtilities.setText(): unhandled token class type");
        }
    } else {
        ErrorReporter.INTERNAL_ERROR("ConfigTreeNodeUtilities.setText(): unhandled ParseTree class type");
    }
}

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