public void init() {
super.init();
runtime
.bool("checkOnly", "optionCheckOnly", false, "Type check, but do not generate code.")
.bool("typesOnly", "optionTypesOnly", false, "Generate external type definitions.")
.word("o", "optionOutput", false, "Specify the base name of the generated checker.")
.bool("printAST", "printAST", false, "Print the AST of the of the pre-transformed program.")
.bool("printSymbolTable", "printSymbolTable", false, "Print the symbol table.")
.bool(
"printSource",
"printSource",
false,
"Print the java source code of the generated checker.")
.bool(
"Oswitch",
"optimizeMatch",
false,
"Use switch statements and type tags for pattern matches.")
.bool("Ofold-let", "optimizeFoldLet", false, "Collapse let expressions where possible.")
.bool("Olet", "optimizeLet", false, "Avoid creating a Let object if possible.")
.bool(
"Otype",
"optimizeType",
false,
"Eliminate type records, if attributes are not defined.")
.word("node", "optionNodeType", false, "Specify the name of the node type.");
}
public void init() {
super.init();
// Declare command line arguments.
runtime
.bool("printJavaAST", "printJavaAST", false, "Print Java AST.")
.bool("printJavaCode", "printJavaCode", false, "Print Java code.")
.bool("countMethods", "countMethods", false, "Count all Java methods.")
.bool("translate", "translate", false, "Translate from Java to C++.")
.bool(
"findDependencies",
"findDependencies",
false,
"Find all Dependencies of given Java file.");
}
/**
* Run this tool with the specified command line arguments. This method works as following:
*
* <ol>
* <li>It calls {@link #init()} to initialize this tool.
* <li>It prints the {@link #getName() name}, {@link #getVersion() version}, and {@link
* #getCopy() copyright} to the {@link Runtime#console() console}.
* <li>If this tool has been invoked without arguments, it prints a description of all command
* line {@link Runtime#printOptions() options} and, optionally, an {@link #getExplanation()
* explanation}. It then exits.
* <li>It {@link Runtime#process(String[]) processes} the specified command line arguments and
* {@link #prepare() prepares} for processing the files. If any errors have been {@link
* Runtime#seenError() reported} during the two method calls, it exits.
* <li>For each file name specified on the command line, it {@link #locate(String) locates} the
* file, {@link #parse(Reader,File) parses} the contents, and {@link #process(Node)
* processes} the resulting AST. If the <code>-performance</code> command line option has
* been specified, it repeatedly parses and processes each file, measuring both latency and
* heap utilization. It then exits.
* </ol>
*
* @param args The command line arguments.
*/
public void run(String[] args) {
// Initialize this tool.
init();
// Print the tool description and exit if there are no arguments.
if (0 == args.length) {
runtime.console().p(getName()).p(", v. ").p(getVersion()).p(", ").pln(getCopy());
runtime.console().pln().pln("Usage: <option>* <file-name>+").pln().pln("Options are:");
runtime.printOptions();
final String explanation = getExplanation();
if (null != explanation) {
runtime.console().pln().wrap(0, explanation).pln();
}
runtime.console().pln().flush();
if (runtime.hasValue("optionNoExit") && runtime.test("optionNoExit")) {
return;
} else {
runtime.exit();
}
}
// Process the command line arguments and print tool name.
int index = runtime.process(args);
if ((!runtime.hasValue("optionSilent")) || (!runtime.test("optionSilent"))) {
runtime.console().p(getName()).p(", v. ").p(getVersion()).p(", ").pln(getCopy()).flush();
}
final boolean diagnose =
runtime.hasValue("optionDiagnostics") && runtime.test("optionDiagnostics");
if (index >= args.length && !diagnose) {
runtime.error("no file names specified");
}
// Prepare for processing the files.
prepare();
// Print diagnostics.
if (diagnose) diagnose();
// Stop if there have been errors already.
if (runtime.seenError()) {
if (runtime.test("optionNoExit")) {
return;
} else {
runtime.exit();
}
}
// Process the files.
final boolean silent = runtime.test("optionSilent");
final boolean doGC = runtime.test("optionGC");
final boolean measure = runtime.test("optionPerformance");
final boolean parserOnly = runtime.test("optionMeasureParser");
final boolean processOnly = runtime.test("optionMeasureProcessing");
final int warmUp = measure ? runtime.getInt("runsWarmUp") : 0;
final int total = measure ? runtime.getInt("runsTotal") : 1;
final Statistics time = measure ? new Statistics() : null;
final Statistics memory = measure ? new Statistics() : null;
final Statistics fileSizes = measure ? new Statistics() : null;
final Statistics latencies = measure ? new Statistics() : null;
final Statistics heapSizes = measure ? new Statistics() : null;
// If measuring, we need to print a legend.
if (measure) {
runtime
.console()
.p("Legend: file, size, time (ave, med, stdev), ")
.pln("memory (ave, med, stdev)")
.pln()
.flush();
}
while (index < args.length) {
// If we are neither silent nor measuring, report on activity.
if ((!silent) && (!measure)) {
runtime.console().p("Processing ").p(args[index]).pln(" ...").flush();
}
// Locate the file.
File file = null;
try {
file = locate(args[index]);
} catch (IllegalArgumentException x) {
runtime.error(x.getMessage());
} catch (FileNotFoundException x) {
runtime.error(x.getMessage());
} catch (IOException x) {
if (null == x.getMessage()) {
runtime.error(args[index] + ": I/O error");
} else {
runtime.error(args[index] + ": " + x.getMessage());
}
} catch (Throwable x) {
runtime.error();
x.printStackTrace();
}
// Parse and process the file.
if (null != file) {
if (measure) {
time.reset();
memory.reset();
}
for (int i = 0; i < total; i++) {
Node ast = null;
boolean success = false;
// Perform GC if requested.
if (doGC) {
System.gc();
}
// Measure performance if requested.
long startTime = 0;
long startMemory = 0;
if (measure && (!processOnly)) {
startMemory = java.lang.Runtime.getRuntime().freeMemory();
startTime = System.currentTimeMillis();
}
// Parse the input.
Reader in = null;
try {
in = runtime.getReader(file);
ast = parse(in, file);
success = true;
} catch (IllegalArgumentException x) {
runtime.error(x.getMessage());
} catch (FileNotFoundException x) {
runtime.error(x.getMessage());
} catch (UnsupportedEncodingException x) {
runtime.error(x.getMessage());
} catch (IOException x) {
if (null == x.getMessage()) {
runtime.error(args[index] + ": I/O error");
} else {
runtime.error(args[index] + ": " + x.getMessage());
}
} catch (ParseException x) {
runtime.error();
System.err.print(x.getMessage());
} catch (Throwable x) {
runtime.error();
x.printStackTrace();
} finally {
if (null != in) {
try {
in.close();
} catch (IOException x) {
// Nothing to see here. Move on.
}
}
}
if (success && (null != ast) && (!parserOnly)) {
// Measure processing only if requested.
if (measure && processOnly) {
startMemory = java.lang.Runtime.getRuntime().freeMemory();
startTime = System.currentTimeMillis();
}
// Process the AST.
try {
process(ast);
} catch (VisitingException x) {
runtime.error();
x.getCause().printStackTrace();
} catch (Throwable x) {
runtime.error();
x.printStackTrace();
}
}
// Collect performance data for this run if requested.
if (measure) {
final long endTime = System.currentTimeMillis();
final long endMemory = java.lang.Runtime.getRuntime().freeMemory();
if (i >= warmUp) {
time.add(endTime - startTime);
memory.add(startMemory - endMemory);
}
}
}
// Collect performance data for all the file's runs if
// requested.
if (measure) {
final long fileSize = file.length();
final double latency = time.mean();
final double heapSize = memory.mean();
fileSizes.add(fileSize / 1024.0);
latencies.add(latency);
heapSizes.add(heapSize / 1024.0);
runtime
.console()
.p(args[index])
.p(' ')
.p(fileSize)
.p(' ')
.p(Statistics.round(latency))
.p(' ')
.p(time.median())
.p(' ')
.p(Statistics.round(time.stdev()))
.p(' ')
.p(Statistics.round(heapSize))
.p(' ')
.p(memory.median())
.p(' ')
.pln(Statistics.round(memory.stdev()))
.flush();
}
}
// Next file.
index++;
}
// Wrap up.
wrapUp();
// Print overall statistics, if requested.
if (measure) {
final double totalTime = latencies.sum();
final double totalMemory = heapSizes.sum();
final double throughput = 1000.0 / Statistics.fitSlope(fileSizes, latencies);
final double heapUtil = Statistics.fitSlope(fileSizes, heapSizes);
runtime
.console()
.pln()
.p("Total time : ")
.p(Statistics.round(totalTime))
.pln(" ms")
.p("Total memory : ")
.p(Statistics.round(totalMemory))
.pln(" KB")
.p("Average throughput : ")
.p(Statistics.round(throughput))
.pln(" KB/s")
.p("Average heap utilization : ")
.p(Statistics.round(heapUtil))
.pln(":1")
.flush();
}
// Done.
if (!runtime.test("optionNoExit")) runtime.exit();
}