/* // $Id: //guest/julian_hyde/saffron/src/main/saffron/rel/convert/ArrayConverter.java#1 $ // Saffron preprocessor and data engine // Copyright (C) 2002 Julian Hyde <julian.hyde@mail.com> // // This library 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 library 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 library; if not, write to the // Free Software Foundation, Inc., 59 Temple Place - Suite 330, // Boston, MA 02111-1307, USA. // // See the COPYING file located in the top-level-directory of // the archive of this library for complete text of license. */ package saffron.rel.convert; import openjava.mop.OJClass; import openjava.ptree.*; import saffron.opt.CallingConvention; import saffron.opt.Cluster; import saffron.opt.Implementor; import saffron.rel.Rel; import saffron.util.Util; /** * An <code>ArrayConverter</code> converts a plan from * <code>inConvention</code> to {@link CallingConvention#ARRAY}. **/ class ArrayConverter extends Converter { Variable var_v; ArrayConverter(Cluster cluster, Rel child, int inConvention) { super(cluster, child, inConvention); } // implement Rel public Object clone() { return new ArrayConverter(cluster, child, inConvention); } public int getConvention() { return CallingConvention.ARRAY; } public static boolean canConvert(int inConvention) { switch (inConvention) { case CallingConvention.COLLECTION: case CallingConvention.VECTOR: return true; default: return false; } } // implement Converter protected Object implementVector(Implementor implementor, int ordinal) { switch (ordinal) { case -1: // called from parent // Generate // saffron.runtime.SaffronUtil.copyInto( // (Vector) <<exp>>, new Type[0]) OJClass clazz = child.getRowType(); // "Rowtype" Object o = implementor.implementChild(this, 0, child); return new MethodCall( TypeName.forOJClass( OJClass.forClass(saffron.runtime.SaffronUtil.class)), "copyInto", new ExpressionList( new CastExpression( TypeName.forOJClass(Util.clazzVector), (Expression) o), new ArrayAllocationExpression( clazz, new ExpressionList(Literal.constantZero())))); default: throw Util.newInternal( "implement: ordinal=" + ordinal); } } // implement Converter protected Object implementCollection( Implementor implementor, int ordinal) { switch (ordinal) { case -1: // called from parent // Generate // saffron.runtime.SaffronUtil.copyInto(<<exp>>, new Type[0]) // if primitive, and // <<exp>>.toArray(new Type[0]) // otherwise OJClass clazz = child.getRowType(); // "Rowtype" Expression exp = (Expression) implementor.implementChild( this, 0, child); return clazz.isPrimitive() ? new MethodCall( TypeName.forOJClass( OJClass.forClass(saffron.runtime.SaffronUtil.class)), "copyInto", new ExpressionList( exp, new ArrayAllocationExpression( clazz, new ExpressionList(Literal.constantZero())))) : new MethodCall( exp, "toArray", new ExpressionList( new ArrayAllocationExpression( clazz, new ExpressionList(Literal.constantZero())))); default: throw Util.newInternal("implement: ordinal=" + ordinal); } } }
# | Change | User | Description | Committed | |
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#2 | 1474 | Julian Hyde |
saffron: Aggregations are working. Renamed 'aggregator' to 'aggregation'. |
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#1 | 1467 | Julian Hyde |
saffron: First saffron check-in; incorporate my changes to openjava. |