protected void compileTypes(File dir) throws ToolsException {
Compiler compiler = new Compiler();
List<String> fileNames = new ArrayList<String>();
for (File f : javaFiles) {
fileNames.add(f.getPath());
}
compiler.compile(fileNames.toArray(new String[fileNames.size()]), dir);
}
public void initCompiler(Compiler compiler) {
this.compiler = compiler;
jobs = new HashMap();
worklist = new LinkedList();
// Register the extension with the compiler.
compiler.addExtension(this);
currentJob = null;
// Create the type system and node factory.
typeSystem();
nodeFactory();
initTypeSystem();
}
public static void main(String[] args) {
// initialize student and class configuration data
int studentNumber = 0;
int runNumber = 1;
String studentName = "blank";
String studentHandle = "000000";
String className = "242-1/";
String configFileName = "./configSingle.txt";
System.out.println("configFileName: " + configFileName);
String path = "C:/java/jdk1.7.0_71/bin";
// set fixed paths and file names:
String sourcePath = "./src/src-output";
String testDataPath = "./src";
String argsFileName = testDataPath + "/args.txt";
String testInputFileName = testDataPath + "/TestInput.txt";
/* make sure set correctly
System.out.println("sourcePath: " + sourcePath);
System.out.println("testDataPath: " + testDataPath);
System.out.println("argsFileName: " + argsFileName);
System.out.println("testInputFileName: " + testInputFileName);
*/
try {
/* config file contains:
- path to Java jdk (enclosed in quotes) on first line
e.g. - "C:/Program Files/Java/jdk1.7.0_25/bin"
- student name (lowercase lastnamefm) on second line
e.g. - smithjq for John Q. Smith
- random 6-digit handle on third line
e.g. - 543890 - use the one given to you in class
*/
File configFile = new File(configFileName);
Scanner in = new Scanner(configFile);
String line = in.nextLine();
Scanner inLine = new Scanner(line);
path = inLine.next();
line = in.nextLine();
inLine = new Scanner(line);
studentName = inLine.next();
line = in.nextLine();
inLine = new Scanner(line);
studentHandle = inLine.next();
// set paths and file names:
String classPath = "/java/bin/" + className + studentName;
String studentPath = sourcePath + "/" + studentName;
String inputFileStub = studentPath + "/input";
String outputFileName = studentPath + "/output-" + studentName + ".txt";
System.out.println("classPath: " + classPath);
System.out.println("studentPath: " + studentPath);
System.out.println("inputFileStub: " + inputFileStub);
System.out.println("outputFileName: " + outputFileName);
System.out.println(
"run #: "
+ runNumber
+ " ; studentNumber: "
+ studentNumber
+ "; Name: "
+ studentName
+ "; Handle: "
+ studentHandle);
System.out.println("Output goes to: " + outputFileName);
// run javac compiler - returns 0 on success
// Compiler Constructor:
// public Compiler(int numbr, String nme, String hndl, String pth, String clsPath,
// String srcPath, String stdPath, String outFileName)
Compiler c =
new Compiler(
runNumber,
studentName,
studentHandle,
path,
classPath,
sourcePath,
studentPath,
outputFileName);
int success = c.compileJava();
// Print whether or not compile successful
if (success == 0) {
System.out.println("Compiled Successfully");
} else {
System.out.println("Compile Exception");
}
// Run the test cases
// TestRunner consructor:
// public TestRunner(int numbr, String nme, String hndl, String pth, String clsPath,
// String srcPath, String stdPath, String tstDataPath, String argFileName,
// String tstInputFileName, String inputFileName, String outFileName)
TestRunner r =
new TestRunner(
runNumber,
studentName,
studentHandle,
path,
classPath,
sourcePath,
studentPath,
testDataPath,
argsFileName,
testInputFileName,
inputFileStub,
outputFileName);
r.runJava();
runNumber++;
System.out.println();
} catch (IOException ioe) {
System.out.println("main IOException");
}
}
/**
* compile the project passed as parameter to the constructor. The basic packages of Cyan, stored
* in project <code>cyanLangPackageProject</code>, are added to the project. Currently there is
* only one basic package of the language: "cyan.lang". This should be included in every
* compilation.
*
* @return <code>false</code> in error
*/
public boolean compile(HashSet<saci.CompilationInstruction> compInstSet) {
Compiler compiler;
try {
// list of non-generic prototypes of the programc
nonGenericCompilationUnitList = new ArrayList<CompilationUnit>();
// list of generic prototypes of the program
ArrayList<CompilationUnit> genericCompilationUnitList = new ArrayList<CompilationUnit>();
/* separates the compilation units (source files) that have generic prototypes from
those that don´t.
A prototype whose file has a digit after '(' is a generic prototype. For example,
Proto(1)(1).cyan has a generic prototype Proto<T><R>. And file
MyData<main.Person><Int> is put in file MyData(main.Person)(Int).cyan.
*/
for (CompilationUnit compilationUnit : program.getCompilationUnitList()) {
/*
// if the file name has a '(' character followed by a digit, then it is a
// generic prototype. Note that "Stack(Int).cyan" contains prototype "Stack<Int>"
// which is not considered generic
*
*/
String filename = compilationUnit.getFilename();
boolean foundDigit = false;
int ifn = 0;
int sizeFilename = filename.length();
while (ifn < sizeFilename) {
if (filename.charAt(ifn) == '(' && Character.isDigit(filename.charAt(ifn + 1))) {
foundDigit = true;
break;
}
++ifn;
}
if (foundDigit) {
compilationUnit.setHasGenericPrototype(true);
genericCompilationUnitList.add(compilationUnit);
} else nonGenericCompilationUnitList.add(compilationUnit);
/*
if ( indexOfLeftPar > 0 && Character.isDigit(compilationUnit.getFilename().charAt(indexOfLeftPar + 1)) )
genericCompilationUnitList.add(compilationUnit);
else
nonGenericCompilationUnitList.add(compilationUnit);
*/
}
/**
* delete all files from "tmp" directories. If a generic prototype is in a directory "D", the
* Compiler creates the generic instantiations in "D\tmp". For example, if "Stack<T>" is in
* directory "util", the Compiler creates prototypes "Stack<Int>" and "Stack<Person>"
* (assuming the program uses "Stack<Int>" and "Stack<Person>") in directory "util\tmp".
*/
Set<String> pathCompilationUnitTable = new HashSet<String>();
for (CompilationUnit c : genericCompilationUnitList) {
pathCompilationUnitTable.add(c.getPackageCanonicalPath());
c.getCyanPackage().setHasGenericPrototype(true);
}
for (String path : pathCompilationUnitTable) {
File dir = new File(path + NameServer.temporaryDirName);
if (dir.exists()) for (File file : dir.listFiles()) file.delete();
}
String dotExtension = "." + NameServer.cyanSourceFileExtension;
boolean hasCompilationError = false;
/**
* first of all, parse all generic prototypes. This is not allowed in step 7 of the
* compilation because all generic prototype instantiation should have been created before
* that.
*/
if (this.compilationStep.compareTo(CompilationStep.step_7) < 0) {
for (CompilationUnit compilationUnit : genericCompilationUnitList) {
compiler = new Compiler(compilationUnit, compInstSet, compilationStep, project, null);
compiler.parse();
/**
* print the errors found in the generic prototypes and apply all actions to them. An
* action is a small refactoring like insert a ";"
*/
if (compilationUnit.hasCompilationError()) {
// compilationUnit.printErrorList(printWriter);
hasCompilationError = true;
}
if (compilationUnit.getActionList().size() > 0) compilationUnit.doActionList(printWriter);
}
}
/* if ( hasCompilationError )
return false;
*/
/*
* in the first step of this while statement, all non-generic prototypes are compiled.
*
* In the second step of the while statement, the real prototypes created in the previous step
* are compiled. They may instantiate new generic prototypes. For example, Stack<Int> may
* declare a variable of type "Array<Int>". This new Cyan prototype should be created and
* compiled. The process continues till no new prototypes should be created.
*/
CompilationUnit compilationUnit;
int numCompilationUnitsAlreadyCompiled = 0;
int sizeNonGenericCompilationUnitList;
while (numCompilationUnitsAlreadyCompiled < nonGenericCompilationUnitList.size()) {
sizeNonGenericCompilationUnitList = nonGenericCompilationUnitList.size();
boolean thereWasErrors = false;
// parse of all source files that were not yet parsed. That may include some
// generic prototypes that were instantiated in the previous round of the above
// while statement.
for (int i = numCompilationUnitsAlreadyCompiled;
i < sizeNonGenericCompilationUnitList;
i++) {
compilationUnit = nonGenericCompilationUnitList.get(i);
// System.out.println("cc: " + compilationUnit.getFilename());
compiler = new Compiler(compilationUnit, compInstSet, compilationStep, project, null);
compiler.parse();
// if ( ! compilationUnit.hasCompilationError() ) {
// }
if (compilationUnit.hasCompilationError()) {
thereWasErrors = true;
// compilationUnit.printErrorList(printWriter);
} else if (compInstSet.contains(CompilationInstruction.createPrototypesForInterfaces)
&& compilationUnit.getPrototypeIsNotGeneric()
&& compilationUnit.getPublicPrototype() instanceof InterfaceDec) {
// if public program unit is an interface, create ProtoInterface
CompilationUnit newCompilationUnit = compilationUnit.createProtoInterface();
if (newCompilationUnit == null) {
if (compilationUnit.hasCompilationError()) {
thereWasErrors = true;
compilationUnit.printErrorList(printWriter);
}
} else {
CyanPackage thisCyanPackage = compilationUnit.getCyanPackage();
thisCyanPackage.addCompilationUnit(newCompilationUnit);
newCompilationUnit.setCyanPackage(thisCyanPackage);
nonGenericCompilationUnitList.add(newCompilationUnit);
String name = newCompilationUnit.getFilename();
int indexDotCyan = name.indexOf(dotExtension);
if (indexDotCyan > 0) name = name.substring(0, indexDotCyan);
program.addCompilationUnit(newCompilationUnit);
if (nameSet.contains(newCompilationUnit.getFilename()))
System.out.println("error: " + newCompilationUnit.getFilename());
else nameSet.add(newCompilationUnit.getFilename());
}
}
// if there was not any errors and there is a list of actions ...
/*if ( compilationUnit.getActionList().size() > 0 )
compilationUnit.doActionList(printWriter);
compilationUnit.clearErrorsActions(); */
}
if (thereWasErrors) {
return false;
}
numCompilationUnitsAlreadyCompiled = sizeNonGenericCompilationUnitList;
}
} catch (Exception e) {
System.out.println(
"Internal error at CompilerManager::compile(). e = " + e.getClass().getName());
e.printStackTrace();
return false;
}
project.printErrorList(printWriter);
return true;
}
/**
* Create an instantiation of a generic prototype given by parameter gt
*
* @param gt
* @param env
* @return
*/
private CompilationUnit createGenericPrototypeInstantiation(
ExprGenericPrototypeInstantiation gt, Env env) {
CompilationUnit genericProto = null;
/* if ( gt.getName().equals("generic02.gb.G1<X>") ) {
System.out.println("generic02.gb.G1<X>");
gt.ifPrototypeReturnsNameWithPackageAndType(env);
} */
String genSourceFileName = gt.getGenericSourceFileName();
String genSourceFileNameVaryingNumberOfParameters =
gt.getGenericSourceFileNameWithVaryingNumberOfParameters();
// if ( gt.getRealTypeListList().size() > 1 )
// System.out.println("3");
boolean isInterface = false;
if (NameServer.isPrototypeFromInterface(genSourceFileName)) {
// int sizePrefix = NameServer.prefixProtoInterface.length();
isInterface = true;
/*
genSourceFileName = genSourceFileName.substring(sizePrefix);
genSourceFileNameVaryingNumberOfParameters = genSourceFileNameVaryingNumberOfParameters.substring(sizePrefix);
*/
genSourceFileName = NameServer.prototypeFileNameFromInterfaceFileName(genSourceFileName);
genSourceFileNameVaryingNumberOfParameters =
NameServer.prototypeFileNameFromInterfaceFileName(
genSourceFileNameVaryingNumberOfParameters);
}
// something like util.Stack if gt is "util.Stack<Int>" or
// Stack if gt is Stack<Int>
ExprIdentStar typeIdent = gt.getTypeIdent();
if (typeIdent.getIdentSymbolArray().size() == 1) {
// no package preceding the generic prototype name as in "Stack<Int>"
ProgramUnit pu =
env.searchProgramUnitBySourceFileName(genSourceFileName, gt.getFirstSymbol(), false);
if (pu != null) {
genericProto = pu.getCompilationUnit();
ProgramUnit pu2 =
env.searchProgramUnitBySourceFileName(
genSourceFileNameVaryingNumberOfParameters, gt.getFirstSymbol(), false);
if (pu2 != null)
/* found both generic prototype and generic prototype with varying number of parameters
* Example: found both Tuple<T> and Tuple<T+>
*/
env.error(
gt.getFirstSymbol(),
"Ambiguity in creating a real prototype from a generic prototype. There is both "
+ pu.getCompilationUnit().getPackageName()
+ "."
+ genSourceFileName
+ " and "
+ pu2.getCompilationUnit().getPackageName()
+ "."
+ genSourceFileNameVaryingNumberOfParameters,
true);
}
if (genericProto == null) {
pu =
env.searchProgramUnitBySourceFileName(
genSourceFileNameVaryingNumberOfParameters, gt.getFirstSymbol(), false);
if (pu != null) genericProto = pu.getCompilationUnit();
}
} else {
// package preceding the generic prototype name as in "util.Stack<Int>"
int i = 0;
ArrayList<Symbol> symbolList = typeIdent.getIdentSymbolArray();
int sizeLessOne = symbolList.size() - 1;
String packageName = "";
while (i < sizeLessOne) {
packageName = packageName + symbolList.get(i).getSymbolString();
++i;
if (i < sizeLessOne) packageName += ".";
}
CyanPackage cyanPackage = env.getProject().searchPackage(packageName);
if (cyanPackage == null) {
env.error(typeIdent.getFirstSymbol(), "Package '" + packageName + "' was not found", true);
return null;
}
// first searches for something like "Stack(1)" in package 'util'
for (CompilationUnit cunit : cyanPackage.getCompilationUnitList()) {
if (genSourceFileName.equals(cunit.getFileNameWithoutExtension())) {
genericProto = cunit;
break;
}
}
CompilationUnit genericProto2 = null;
// searches for a generic prototype with varying number of parameters
// something like "Stack(1+)"
for (CompilationUnit cunit : cyanPackage.getCompilationUnitList()) {
if (genSourceFileNameVaryingNumberOfParameters.equals(
cunit.getFileNameWithoutExtension())) {
genericProto2 = cunit;
break;
}
}
if (genericProto != null && genericProto2 != null) {
env.error(
gt.getFirstSymbol(),
"Ambiguity in creating a real prototype from a generic prototype. There is both "
+ genericProto.getPackageName()
+ "."
+ genSourceFileName
+ " and "
+ genericProto2.getPackageName()
+ "."
+ genSourceFileNameVaryingNumberOfParameters,
true);
}
if (genericProto == null) genericProto = genericProto2;
}
// genericProto = nameGenProtoUnitTable.get(genSourceFileName);
if (genericProto == null) {
env.error(
true,
gt.getFirstSymbol(),
"Prototype '" + gt.getName() + "' was not found",
gt.getName(),
ErrorKind.prototype_was_not_found_inside_method);
/*gt.getProgramUnit().getCompilationUnit().error(null,
"Internal error at CompilerManager::createInterfaceObjectFunctionAndArray: cannot create " + gt.getName()); */
return null;
} else {
/**
* if there was no compilation error in "Stack(1).cyan", then create an instance of the
* generic prototype
*/
if (isInterface) {
gt.removeProtoPrefix();
}
CompilationUnit newCompilationUnit = genericProto.createInstanceGenericPrototype(gt, env);
CompilationUnit interCompilationUnit = null;
/**
* if the package for this generic prototype instantiation was not created before, create it
* now.
*/
CyanPackage cyanPackage = genericProto.getCyanPackage();
cyanPackage.addCompilationUnit(newCompilationUnit);
newCompilationUnit.setCyanPackage(cyanPackage);
nonGenericCompilationUnitList.add(newCompilationUnit);
if (nameSet.contains(newCompilationUnit.getFullFileNamePath())) {
env.error(gt.getFirstSymbol(), "Internal error in CompilerManager");
gt.ifPrototypeReturnsNameWithPackageAndType(env);
} else nameSet.add(newCompilationUnit.getFullFileNamePath());
program.addCompilationUnit(newCompilationUnit);
newCompilationUnit.readSourceFile();
HashSet<saci.CompilationInstruction> compInstSet = new HashSet<>();
compInstSet.add(CompilationInstruction.dpa_actions);
compInstSet.add(CompilationInstruction.pp_addCode);
if (compilationStep.compareTo(CompilationStep.step_5) >= 0)
compInstSet.add(CompilationInstruction.new_addCode);
Compiler compiler =
new Compiler(newCompilationUnit, compInstSet, compilationStep, project, null);
compiler.parse();
if (newCompilationUnit.hasCompilationError()) {
// newCompilationUnit.printErrorList(printWriter);
env.setThereWasError(true);
throw new CompileErrorException();
} else if (compInstSet.contains(CompilationInstruction.createPrototypesForInterfaces)
&& newCompilationUnit.getPrototypeIsNotGeneric()
&& newCompilationUnit.getPublicPrototype() instanceof InterfaceDec) {
// if public program unit is an interface, create ProtoInterface
interCompilationUnit = newCompilationUnit.createProtoInterface();
if (interCompilationUnit != null) {
interCompilationUnit.setCyanPackage(cyanPackage);
cyanPackage.addCompilationUnit(interCompilationUnit);
newCompilationUnit.setCyanPackage(cyanPackage);
nonGenericCompilationUnitList.add(interCompilationUnit);
String nameInter = interCompilationUnit.getFilename();
if (nameInter.endsWith(NameServer.dotCyanSourceFileExtension))
nameInter =
nameInter.substring(
0, nameInter.length() - NameServer.sizeCyanSourceFileExtensionPlusOne);
// nameRealGenProtoUnitTable.put(nameInter, interCompilationUnit);
program.addCompilationUnit(interCompilationUnit);
interCompilationUnit.readSourceFile();
compiler =
new Compiler(interCompilationUnit, compInstSet, compilationStep, project, null);
compiler.parse();
if (interCompilationUnit.getActionList().size() > 0)
interCompilationUnit.doActionList(printWriter);
interCompilationUnit.clearErrorsActions();
}
}
// newCompilationUnit.clearErrorsActions();
if (isInterface) return interCompilationUnit;
else return newCompilationUnit;
}
}
/**
* @param args
* @param stream
* @param numChRead
* @param outError
* @param printWriter
* @throws IOException
*/
private void compileProgram(File file, String filename, PrintWriter outError) {
Program program;
FileReader stream;
int numChRead;
try {
stream = new FileReader(file);
} catch (FileNotFoundException e) {
String msg = "Something wrong: file does not exist anymore";
outError.println(msg);
return;
}
// one more character for '\0' at the end that will be added by the
// compiler
char[] input = new char[(int) file.length() + 1];
try {
numChRead = stream.read(input, 0, (int) file.length());
if (numChRead != file.length()) {
outError.println("Read error");
stream.close();
return;
}
stream.close();
} catch (IOException e) {
String msg = "Error reading file " + filename;
outError.println(msg);
try {
stream.close();
} catch (IOException e1) {
}
return;
}
Compiler compiler = new Compiler();
program = null;
// the generated code goes to a file and so are the errors
program = compiler.compile(input, outError);
callMetaobjects(filename, program, outError);
if (!program.hasCompilationErrors()) {
String outputFileName;
int lastIndex;
if ((lastIndex = filename.lastIndexOf('.')) == -1) lastIndex = filename.length();
outputFileName = filename.substring(0, lastIndex);
if ((lastIndex = filename.lastIndexOf('\\')) != -1)
outputFileName = filename.substring(lastIndex + 1);
FileOutputStream outputStream;
try {
outputStream = new FileOutputStream(outputFileName + ".c");
} catch (IOException e) {
String msg = "File " + outputFileName + " was not found";
outError.println(msg);
return;
}
PrintWriter printWriter = new PrintWriter(outputStream);
PW pw = new PW();
pw.set(printWriter);
program.genC(pw);
if (printWriter.checkError()) {
outError.println("There was an error in the output");
}
printWriter.close();
}
}
public static void main(String[] args) throws Exception {
Config.hadoop_mode = false;
if (args.length == 2 && args[0].equals("args")) // needed for mrql.flink script
args = args[1].substring(1).split("!");
for (String arg : args) {
Config.hadoop_mode |= arg.equals("-local") || arg.equals("-dist");
Config.bsp_mode |= arg.equals("-bsp");
Config.spark_mode |= arg.equals("-spark");
Config.flink_mode |= arg.equals("-flink");
}
;
Config.map_reduce_mode = !Config.bsp_mode && !Config.spark_mode && !Config.flink_mode;
initialize_evaluator();
if (Config.hadoop_mode) {
conf = Evaluator.evaluator.new_configuration();
GenericOptionsParser gop = new GenericOptionsParser(conf, args);
conf = gop.getConfiguration();
args = gop.getRemainingArgs();
}
;
Config.parse_args(args, conf);
Config.hadoop_mode = Config.local_mode || Config.distributed_mode;
if (!Config.info) {
for (Enumeration en = LogManager.getCurrentLoggers(); en.hasMoreElements(); )
((Logger) en.nextElement()).setLevel(Level.WARN);
LogManager.getRootLogger().setLevel(Level.WARN);
}
;
Evaluator.evaluator.init(conf);
new TopLevel();
System.out.print("Apache MRQL version " + version + " (");
if (Config.compile_functional_arguments) System.out.print("compiled ");
else System.out.print("interpreted ");
if (Config.hadoop_mode) {
if (Config.local_mode) System.out.print("local ");
else if (Config.distributed_mode) System.out.print("distributed ");
if (Config.spark_mode) System.out.println("Spark mode using " + Config.nodes + " tasks)");
else if (Config.flink_mode)
System.out.println("Flink mode using " + Config.nodes + " tasks)");
else if (Config.bsp_mode)
System.out.println("Hama BSP mode over " + Config.nodes + " BSP tasks)");
else if (Config.nodes > 0)
System.out.println("Hadoop MapReduce mode with " + Config.nodes + " reducers)");
else if (!Config.local_mode)
System.out.println("Hadoop MapReduce mode with 1 reducer, use -nodes to change it)");
else System.out.println("Hadoop MapReduce mode)");
} else if (Config.bsp_mode) System.out.println("in-memory BSP mode)");
else System.out.println("in-memory Java mode)");
if (Config.interactive) {
System.out.println("Type quit to exit");
ConsoleReader reader = new ConsoleReader();
reader.setBellEnabled(false);
History history = new History(new File(System.getProperty("user.home") + "/.mrqlhistory"));
reader.setHistory(history);
reader.setUseHistory(false);
try {
loop:
while (true) {
String line = "";
String s = "";
try {
if (Config.hadoop_mode && Config.bsp_mode) Config.write(Plan.conf);
do {
s = reader.readLine("> ");
if (s != null && (s.equals("quit") || s.equals("exit"))) break loop;
if (s != null) line += " " + s;
} while (s == null || s.indexOf(";") <= 0);
line = line.substring(1);
history.addToHistory(line);
parser = new MRQLParser(new MRQLLex(new StringReader(line)));
MRQLLex.reset();
parser.parse();
} catch (EOFException x) {
break;
} catch (Exception x) {
if (x.getMessage() != null) System.out.println(x);
} catch (Error x) {
System.out.println(x);
}
}
} finally {
if (Config.hadoop_mode) {
Plan.clean();
Evaluator.evaluator.shutdown(Plan.conf);
}
;
if (Config.compile_functional_arguments) Compiler.clean();
}
} else
try {
if (Config.hadoop_mode && Config.bsp_mode) Config.write(Plan.conf);
try {
parser = new MRQLParser(new MRQLLex(new FileInputStream(query_file)));
} catch (Exception e) {
// when the query file is in HDFS
Path path = new Path(query_file);
FileSystem fs = path.getFileSystem(conf);
parser = new MRQLParser(new MRQLLex(fs.open(path)));
}
;
parser.parse();
} finally {
if (Config.hadoop_mode) {
Plan.clean();
Evaluator.evaluator.shutdown(Plan.conf);
}
;
if (Config.compile_functional_arguments) Compiler.clean();
}
}
public static void main(String[] args) {
// read name of source file from command line
String simplfile = args[0];
// filename for output is basename.svml
StringTokenizer st = new StringTokenizer(simplfile, ".");
String classname = st.nextToken();
String svmlfile = classname + ".svml";
try {
// parse simPL expression
Expression simpl = Parse.fromFileName(simplfile);
try {
Type t = simpl.check(new TypeEnvironment());
System.out.println("Well-typed with type: " + t);
} catch (TypeError e) {
System.out.println(e);
}
/*
* simPL input: 'simpl' is a valid simpl program that has been type
* checked.
*/
INSTRUCTION[] ia = new Compiler(simpl).compile();
Compiler.displayInstructionArray(ia);
try {
// create object output stream
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(svmlfile));
// and write resulting instruction array to output stream
oos.writeObject(ia);
oos.close();
// indicate successful compilation to user
System.out.println("sVML code written to " + svmlfile);
} catch (Exception ex) {
System.out.println("\ncannot write virtual machine code " + ex);
}
}
// Lexical errors are treated nicely, giving an
// error message with line and character of the
// error (unfortunately, parse errors do not enjoy
// such treatment yet)
catch (SyntaxError e) {
try {
System.out.println(e);
FileReader fr = new FileReader(simplfile);
BufferedReader br = new BufferedReader(fr);
String record = null;
int line = e.line;
int column = e.column;
int lineCount = 0;
int columnCount = 0;
while ((record = br.readLine()) != null & lineCount++ < line) ;
System.out.println(record);
while (columnCount++ != column) System.out.print(" ");
System.out.println("^");
} catch (Exception ex) {
System.out.println(e);
}
} catch (FileNotFoundException e) {
System.out.println(e);
} catch (Exception e) {
System.out.println(e);
}
}