/**********************************************************************
 * Copyright (c) 2006 IBM Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ptp.pldt.openmp.analysis.PAST;

import java.util.LinkedList;

import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTPreprocessorPragmaStatement;
import org.eclipse.cdt.core.dom.ast.IASTStatement;
import org.eclipse.ptp.pldt.openmp.analysis.OpenMPError;
import org.eclipse.ptp.pldt.openmp.analysis.parser.OpenMPToken;

/**
 * 
 * @author pazel
 *
 */
public class PASTOMPPragma extends PASTPragma
{
    protected int ompType_ = OmpUnknown;
    
    // OmpParallel, OmpParallelFor, OmpParallelSections
    protected OpenMPToken [] sharedList_        = null;
    // OmpParallel, OmpFor, OmpSections, OmpSingle, OmpParallelFor, OmpParallelSections
    protected OpenMPToken [] privateList_       = null;
    // OmpParallel, OmpFor, OmpSections, OmpSingle, OmpParallelFor, OmpParallelSections
    protected OpenMPToken [] firstPrivateList_  = null;
    // OmpFor, OmpSections, OmpParallelFor, OmpParallelSections
    protected OpenMPToken [] lastPrivateList_   = null;
    // OmpParallel, OmpParallelFor, OmpParallelSections
    protected int            default_           = OmpShared;  // or OmpNone
    // OmpParallel, OmpFor, OmpSections, OmpParallelFor, OmpParallelSections
    protected int            reductionOperator_ = OmpOpUnknown;
    protected OpenMPToken [] reductionList_     = null;
    // OmpParallel, OmpParallelFor, OmpParallelSections
    protected OpenMPToken [] copyinList_        = null;
    // OmpParallel, OmpParallelFor, OmpParallelSections
    protected OpenMPToken [] ifExpression_            = null;
    // OmpFor, OmpParallelFor
    protected boolean        ordered_           = false;
    // OmpFor, OmpParallelFor
    protected int            scheduleKind_      = OmpSKUnknown;
    protected OpenMPToken [] chunkExpression_   = null;
    // OmpFor, OmpSections, OmpSingle
    protected boolean        nowait_            = false;

    // OmpThreadPrivate
    protected OpenMPToken [] threadPrivateList_ = null;
    // OmpParallel
    protected OpenMPToken [] numThreadsExpr_    = null;
    // OmpSingle
    protected OpenMPToken [] copyPrivateList_   = null;
    // OmpFlush
    protected OpenMPToken [] flushList_         = null;
    // Region
    protected IASTNode      region_  = null;
    protected String        regionFilename_ = null;
    protected int           regionOffset_   = 0;     // local to file (not acctg for includes)
    protected int           regionLength_   = 0;
    // Problem list for this omp pragma
    protected LinkedList    problemList_  = new LinkedList();  // of OpenMPError's
    
    protected IASTStatement locationNode_ = null;   // just preceding stmt - if cmpd stmt
    protected int           locationProximity_ = NoProximity;
    
    public static final int NoProximity       = -1;
    public static final int NeighborProximity = 0;  // cst indicating pragma at same level and succeeding pragma
    public static final int ChildProximity    = 1;  // cst indicating pragma is child of ast node

    
    public static final int OmpUnknown  = -1;
    public static final int OmpParallel = 0;
    public static final int OmpFor      = 1;
    public static final int OmpSection  = 2;
    public static final int OmpSections = 3;
    public static final int OmpSingle   = 4;
    public static final int OmpParallelFor      = 5;
    public static final int OmpParallelSections = 6;
    public static final int OmpMaster   = 7;
    public static final int OmpCritical = 8;
    public static final int OmpBarrier  = 9;
    public static final int OmpAtomic   = 10;
    public static final int OmpFlush    = 11;
    public static final int OmpOrdered  = 12;
    public static final int OmpThreadPrivate = 13;
    
    public static final int OmpShared   = 0;
    public static final int OmpNone     = 1;
    
    public static final int OmpOpUnknown = -1;
    public static final int OmpOpPlus    = 0;
    public static final int OmpOpMult    = 1;
    public static final int OmpOpMinus   = 2;
    public static final int OmpOpBAnd    = 3;
    public static final int OmpOpBXor    = 4;
    public static final int OmpOpBOr     = 5;
    public static final int OmpOpLAnd    = 6;
    public static final int OmpOpLOr     = 7;
    
    public static final int OmpSKUnknown = -1;
    public static final int OmpSKStatic  = 0;
    public static final int OmpSKDynamic = 1;
    public static final int OmpSKGuided  = 2;
    public static final int OmpSKRuntime = 3;
	
    /**
     * PASTOMPPragma - constructor using ASTPragma
     * @param pragma - ASTPragma
     */
	public PASTOMPPragma(IASTPreprocessorPragmaStatement pragma)
	{
		super(pragma);
		//pragma_ = pragma;
	}
    
    /**
     * PASTOMPPragma - constructor using PASTPragma
     * @param pragma - PASTPragma
     */
    public PASTOMPPragma(PASTPragma pragma)
    {
        super(pragma);
    }
    
    public String getType()
    {
        String t = "";
        switch(ompType_) {
            case OmpUnknown:
                t="--unknown==";
                break;
            case OmpParallel:
                t="parallel";
                break;
            case OmpFor:
                t="for";
                break;
            case OmpSections:
                t="sections";
                break;
            case OmpSection:
                t="section";
                break;
            case OmpSingle:
                t="single";
                break;
            case OmpParallelFor:
                t="parallel for";
                break;
            case OmpParallelSections:
                t="parallel sections";
                break;
            case OmpMaster:
                t="master";
                break;
            case OmpCritical:
                t="critical";
                break;
            case OmpBarrier:
                t="barrier";
                break;
            case OmpAtomic:
                t="atomic";
                break;
            case OmpFlush:
                t="flush";
                break;
            case OmpOrdered:
                t="ordered";
                break;
            case OmpThreadPrivate:
                t="thread private";
                break;
        }
        return "#pragma omp "+t;
    }
    
    /**
     * getOMPType - get the type code for the OpenMP directive
     * @return
     */
    public int getOMPType()
    {
        return ompType_;
    }
    
    public OpenMPToken [] getThreadPrivateList()
    {
        return threadPrivateList_;
    }
    
    public OpenMPToken [] getIfExpression()
    {
        return ifExpression_;
    }
    
    public OpenMPToken [] getPrivateList()
    {
        return privateList_;
    }
    
    public OpenMPToken [] getFirstPrivateList()
    {
        return firstPrivateList_;
    }
    
    public int getDefault()
    {
        return default_;
    }
    
    public OpenMPToken [] getSharedList()
    {
        return sharedList_;
    }

    
    public OpenMPToken [] getCopyinList()
    {
        return copyinList_;
    }
    
    public int getReductionOperator()
    {
        return reductionOperator_;
    }
    
    public OpenMPToken [] getReductionList()
    {
        return reductionList_;
    }
    
    public boolean getOrdered()
    {
        return ordered_;
    }
    
    public boolean getNoWait()
    {
        return nowait_;
    }
    
    public int getScheduleKind()
    {
        return scheduleKind_;
    }
    
    public OpenMPToken [] getChunkExpression()
    {
        return chunkExpression_;
    }
    
    public OpenMPToken [] getCopyPrivateList()
    {
        return copyPrivateList_;
    }
    
    public OpenMPToken [] getFlushList()
    {
        return flushList_;
    }
    
    public OpenMPToken [] getNumThreadsExpr()
    {
        return numThreadsExpr_;
    }
    
    public OpenMPToken [] getLastPrivateList()
    {
        return lastPrivateList_;
    }
    
    /**
     * getRegion - accessor
     * @return IASTNode
     */
    public IASTNode getRegion()
    {
        return region_;
    }
    
    public String getRegionFilename()
    { return regionFilename_; }
    
    public int getRegionOffset()
    {
        return regionOffset_;
    }
    
    public int getRegionLength()
    {
        return regionLength_;
    }
    
    public LinkedList getProblems()
    {
        return problemList_;
    }
    
    public IASTStatement getLocation()
    {
        return locationNode_;
    }

    public int getProximity()
    {
        return locationProximity_;
    }
    
    /**
     * setOMPType - set the OMP type code
     * @param type
     */
    protected void setOMPType(int type) { ompType_ = type; }
    
    /**
     * setThreadPrivateList - set the threadprivate list of variables
     * @param l
     */
    protected void setThreadPrivateList(OpenMPToken [] l) { threadPrivateList_ = l; }

    protected void setIfExpression(OpenMPToken [] l) { ifExpression_ = l; }
    
    protected void setPrivateList(OpenMPToken [] l) { privateList_ = l; }
    
    protected void setFirstPrivateList(OpenMPToken [] l) { firstPrivateList_ = l; }
    
    protected void setDefault(int sn) { default_ = sn; }
    
    protected void setSharedList(OpenMPToken [] l) { sharedList_ = l; }
    
    protected void setCopyinList(OpenMPToken [] l) { copyinList_ = l; }
    
    protected void setReductionOperator(int op) { reductionOperator_ = op; }

    protected void setReductionList(OpenMPToken [] l) { reductionList_ = l; }
    
    protected void setOrdered(boolean tf) { ordered_ = tf; }
    
    protected void setNoWait(boolean tf) { nowait_ = tf; }
    
    protected void setScheduleKind(int kind) { scheduleKind_ = kind; }
    
    protected void setChunkExpression(OpenMPToken [] expression) { chunkExpression_ = expression; }
    
    protected void setCopyPrivateList(OpenMPToken [] l) { copyPrivateList_ = l; }
    
    protected void setFlushList(OpenMPToken [] l) { flushList_ = l; }
    
    protected void setNumThreadsExpr(OpenMPToken [] l) { numThreadsExpr_ = l; }
    
    protected void setLastPrivateList(OpenMPToken [] l) { lastPrivateList_ = l; }
    
    protected void setRegion(IASTNode region) { region_ = region;  }
    
    protected void setRegionFilename(String filename) { regionFilename_ = filename; }
    
    protected void setRegionOffset(int offset)  { regionOffset_ = offset;  }
    
    protected void setRegionLength(int length)  { regionLength_ = length;  }
    
    public void addProblem(OpenMPError error)
    { problemList_.add(error); }

    public void setLocation(IASTStatement location, int proximity) 
    { locationNode_=location;   locationProximity_=proximity;  }
}