/*
* Compiler.java
*
* This file is part of Tritonus: http://www.tritonus.org/
*/
/*
* Copyright (c) 2002 by Matthias Pfisterer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
|<--- this code is formatted to fit into 80 columns --->|
*/
package org.tritonus.saol.compiler;
import java.io.File;
import java.io.Reader;
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.PushbackReader;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.tritonus.share.TDebug;
import org.tritonus.saol.sablecc.parser.*;
import org.tritonus.saol.sablecc.lexer.*;
import org.tritonus.saol.sablecc.node.*;
public class Compiler
{
private static final boolean DEBUG = false;
private static final int ACTION_DUMP_TREE = 0;
private static final int ACTION_COMPILE_INSTRUMENTS = 1;
private static final int ACTION_GENERATE_MP4 = 2;
private File m_saolFile;
private int m_nAction;
private Map m_instrumentMap;
public Compiler(File saolFile)
{
this(saolFile, ACTION_COMPILE_INSTRUMENTS);
}
public Compiler(File saolFile, int nAction)
{
m_saolFile = saolFile;
m_nAction = nAction;
}
public void compile()
throws Exception
{
Reader reader = new FileReader(m_saolFile);
reader = new BufferedReader(reader);
PushbackReader pbReader = new PushbackReader(reader, 1024);
Lexer lexer = new Lexer(pbReader);
Parser parser = new Parser(lexer);
Start tree = parser.parse();
switch (m_nAction)
{
case ACTION_DUMP_TREE:
dumpTree(tree);
break;
case ACTION_COMPILE_INSTRUMENTS:
TDebug.out("compiling instruments...");
m_instrumentMap = compileInstruments(tree);
TDebug.out("IM: " + m_instrumentMap);
break;
}
}
/** Prints the tree of the given AST on standard output.
*/
private static void dumpTree(Start tree)
{
PrintWalker printWalker = new PrintWalker();
tree.apply(printWalker);
}
/**
Returns a Map: instrument names (String) -> instrument classes (Class)
*/
private static Map compileInstruments(Start tree)
{
InstrumentTable instrumentTable = new InstrumentTable();
UserOpcodeTable opcodeTable = new UserOpcodeTable();
TemplateTable templateTable = new TemplateTable();
Map instrumentMap = new HashMap();
NodeSemanticsTable nodeSemanticsTable = new NodeSemanticsTable();
/* Divide the AST into sections. There is one section
for global, and one for each instrument, opcode or template.
*/
TreeDivider treeDivider = new TreeDivider(instrumentTable,
opcodeTable,
templateTable);
tree.apply(treeDivider);
AGlobaldeclGlobaldecl globalNode = treeDivider.getGlobalNode();
/* Process the global section.
*/
SAOLGlobals saolGlobals = new SAOLGlobals();
if (globalNode != null)
{
GlobalsSearcher gsearcher = new GlobalsSearcher(saolGlobals);
globalNode.apply(gsearcher);
}
if (DEBUG)
{
TDebug.out("a-rate: " + saolGlobals.getARate());
TDebug.out("k-rate: " + saolGlobals.getKRate());
TDebug.out("inchannels: " + saolGlobals.getInChannels());
TDebug.out("outchannels: " + saolGlobals.getOutChannels());
TDebug.out("interp: " + saolGlobals.getInterp());
}
VariableTable globalVariableTable = new VariableTable();
/* Semantic check on instruments.
*/
Iterator instruments = instrumentTable.values().iterator();
while (instruments.hasNext())
{
InstrumentEntry entry = (InstrumentEntry) instruments.next();
AInstrdeclInstrdecl startNode = entry.getStartNode();
VariableTable localVariableTable = entry.getLocalVariableTable();
InstrumentSemanticsCheck isc = new InstrumentSemanticsCheck(globalVariableTable, localVariableTable, nodeSemanticsTable);
startNode.apply(isc);
}
// TODO: collection of variable tables, semantic checks
/* Compiling the instruments.
*/
InstrumentCompilation ic = new InstrumentCompilation(saolGlobals, instrumentMap);
instruments = instrumentTable.values().iterator();
while (instruments.hasNext())
{
InstrumentEntry entry = (InstrumentEntry) instruments.next();
AInstrdeclInstrdecl node = entry.getStartNode();
node.apply(ic);
}
if (DEBUG)
{
Iterator it = instrumentMap.keySet().iterator();
while (it.hasNext())
{
TDebug.out("" + it.next());
}
}
return instrumentMap;
}
public Map getInstrumentMap()
{
if (m_nAction != ACTION_COMPILE_INSTRUMENTS)
{
TDebug.out("I.M.: returning null");
return null;
}
TDebug.out("I.M.: " + m_instrumentMap);
return m_instrumentMap;
}
public static void main(String[] arguments)
{
int nAction = ACTION_COMPILE_INSTRUMENTS;
String strSaolFilename = arguments[0];
if (arguments[0].equals("-d"))
{
nAction = ACTION_DUMP_TREE;
strSaolFilename = arguments[1];
}
File saolFile = new File(strSaolFilename);
Compiler compiler = new Compiler(saolFile, nAction);
try
{
compiler.compile();
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
/*** Compiler.java ***/