edu.cornell.cs.cs4120.util

Class CodeWriterSExpPrinter

java.lang.Object

edu.cornell.cs.cs4120.util.CodeWriterSExpPrinter

All Implemented Interfaces:

SExpPrinter, java.lang.AutoCloseable

public class CodeWriterSExpPrinter
extends java.lang.Object
implements SExpPrinter

An SExpPrinter implementation designed to print ASTs through a provided CodeWriter.

Constructor Summary

Constructors

Constructor and Description
CodeWriterSExpPrinter(polyglot.util.CodeWriter writer) Constructs a new SExpPrinter instance that prints programs using the given CodeWriter.
CodeWriterSExpPrinter(java.io.OutputStream o) Deprecated.
CodeWriterSExpPrinter(java.io.PrintWriter w) Constructs a new SExpPrinter instance that prints programs using the given writer.

Method Summary

Modifier and Type	Method and Description
void	close() Flushes and closes both this printer and any underlying output stream to which it is attached.
void	endList() Prints the close parenthesis of an S-expression list.
void	flush() Flushes all formatted text to the underlying writer.
void	printAtom(java.lang.String atom) Prints an atom.
protected void	startElement()
protected void	startEveryList()
void	startList() Prints the open parenthesis of an S-expression list.
void	startUnifiedList() Prints the open parenthesis of an S-expression list, and requires that if a line break is required to separate any two elements of this list, then all elements of this list must be separated by a line break (optional operation).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CodeWriterSExpPrinter

public CodeWriterSExpPrinter(polyglot.util.CodeWriter writer)

Constructs a new SExpPrinter instance that prints programs using the given CodeWriter.

Parameters:

writer - the CodeWriter to print to

CodeWriterSExpPrinter

public CodeWriterSExpPrinter(java.io.PrintWriter w)

Constructs a new SExpPrinter instance that prints programs using the given writer. Output is kept to 80 columns if possible.

Parameters:

w - the writer to write to

CodeWriterSExpPrinter

@Deprecated
public CodeWriterSExpPrinter(java.io.OutputStream o)

Deprecated.

Constructs a new SExpPrinter instance that prints programs using the given stream. Output is kept to 80 columns if possible. Deprecated: use the previous constructor instead.

Parameters:

o - the output stream to print to

Method Detail

printAtom

public void printAtom(java.lang.String atom)

Description copied from interface: SExpPrinter

Prints an atom.

Specified by:

printAtom in interface SExpPrinter

Parameters:

atom - the atom to print

startList

public void startList()

Description copied from interface: SExpPrinter

Prints the open parenthesis of an S-expression list.

Specified by:

startList in interface SExpPrinter

startUnifiedList

public void startUnifiedList()

Description copied from interface: SExpPrinter

Prints the open parenthesis of an S-expression list, and requires that if a line break is required to separate any two elements of this list, then all elements of this list must be separated by a line break (optional operation).

Specified by:

startUnifiedList in interface SExpPrinter

startEveryList

protected void startEveryList()

endList

public void endList()

Description copied from interface: SExpPrinter

Prints the close parenthesis of an S-expression list.

Specified by:

endList in interface SExpPrinter

startElement

protected void startElement()

flush

public void flush()

Description copied from interface: SExpPrinter

Flushes all formatted text to the underlying writer. This method should be called when printing is complete.

Specified by:

flush in interface SExpPrinter

close

public void close()

Description copied from interface: SExpPrinter

Flushes and closes both this printer and any underlying output stream to which it is attached. It is an error to perform any subsequent operations on the same printer.

Specified by:

close in interface SExpPrinter

Specified by:

close in interface java.lang.AutoCloseable