Example usage for jdk.nashorn.internal.ir.debug PrintVisitor PrintVisitor

Introduction

In this page you can find the example usage for jdk.nashorn.internal.ir.debug PrintVisitor PrintVisitor.

Prototype

public PrintVisitor(final Node root) 

Source Link

Document

Constructor

Usage

From source file:org.kihara.util.JavascriptEngine.java

License:Open Source License

/**
 * Compiles the given script files in the command line
 *
 * @param context the nashorn context//  w  ww . ja va2s. co  m
 * @param global the global scope
 * @param files the list of script files to compile
 *
 * @return error code
 * @throws IOException when any script file read results in I/O error
 */
private static int compileScripts(final Context context, final ScriptObject global, final List<String> files)
        throws IOException {
    final ScriptObject oldGlobal = Context.getGlobal();
    final boolean globalChanged = (oldGlobal != global);
    final ScriptEnvironment env = context.getEnv();
    try {
        if (globalChanged) {
            Context.setGlobal(global);
        }
        final ErrorManager errors = context.getErrorManager();

        // For each file on the command line.
        for (final String fileName : files) {
            final FunctionNode functionNode = new Parser(env, Source.sourceFor(fileName, new File(fileName)),
                    errors, env._strict, 0, context.getLogger(Parser.class)).parse();

            if (errors.getNumberOfErrors() != 0) {
                return COMPILATION_ERROR;
            }

            new Compiler(context, env, null, //null - pass no code installer - this is compile only
                    functionNode.getSource(), context.getErrorManager(), env._strict | functionNode.isStrict())
                            .compile(functionNode, Compiler.CompilationPhases.COMPILE_ALL_NO_INSTALL); //*/

            /*
            Compiler.forNoInstallerCompilation(context,
                functionNode.getSource(),
                env._strict | functionNode.isStrict()).
                compile(functionNode, Compiler.CompilationPhases.COMPILE_ALL_NO_INSTALL);
            //*/

            if (env._print_ast) {
                context.getErr().println(new ASTWriter(functionNode));
            }

            if (env._print_parse) {
                context.getErr().println(new PrintVisitor(functionNode));
            }

            if (errors.getNumberOfErrors() != 0) {
                return COMPILATION_ERROR;
            }
        }
    } finally {
        env.getOut().flush();
        env.getErr().flush();
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return SUCCESS;
}

---