/*
* Copyright (c) 2007 BUSINESS OBJECTS SOFTWARE LIMITED
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Business Objects nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package org.openquark.cal.internal.machine;
import org.openquark.cal.compiler.ForeignTypeInfo;
import org.openquark.cal.compiler.QualifiedName;
import org.openquark.cal.compiler.TypeExpr;
import org.openquark.cal.compiler.UnableToResolveForeignEntityException;
import org.openquark.cal.internal.runtime.RuntimeEnvironment;
import org.openquark.cal.machine.MachineFunction;
import org.openquark.cal.machine.Program;
import org.openquark.cal.runtime.ResourceAccess;
/**
* A RuntimeEnvironment when the Program object is available.
* @author Bo Ilic
*/
public final class DynamicRuntimeEnvironment extends RuntimeEnvironment {
/** The program in which we are operating. */
private final Program program;
public DynamicRuntimeEnvironment(Program program, ResourceAccess resourceAccess) {
super(resourceAccess);
this.program = program;
}
/** {@inheritDoc} */
@Override
public final Class<?> getForeignClass(final String qualifiedTypeConsName, final String foreignName) throws UnableToResolveForeignEntityException {
final QualifiedName typeName = QualifiedName.makeFromCompoundName(qualifiedTypeConsName);
//fetch the Class object from the type's ForeignTypeInfo
final ForeignTypeInfo foreignTypeInfo =
program
.getModule(typeName.getModuleName())
.getModuleTypeInfo()
.getTypeConstructor(typeName.getUnqualifiedName())
.getForeignTypeInfo();
if (foreignTypeInfo != null) {
return foreignTypeInfo.getForeignType();
}
return null;
}
/** {@inheritDoc} */
@Override
public String[][] getArgNamesAndTypes(String qualifiedFunctionName) {
try {
MachineFunction mf = program.getCodeLabel(QualifiedName.makeFromCompoundName(qualifiedFunctionName));
if (mf != null && mf.getArity() > 0) {
String argNames[] = mf.getParameterNames();
TypeExpr argTypes[] = mf.getParameterTypes();
String argTypeStrings[] = new String[argTypes.length];
for (int i = 0; i < argTypeStrings.length; ++i) {
if (argTypes[i] == null) {
argTypeStrings[i] = "internal type";
} else {
argTypeStrings[i] = argTypes[i].toString();
}
}
return new String[][] {argNames, argTypeStrings};
} else {
return super.getArgNamesAndTypes(qualifiedFunctionName);
}
} catch (Exception e) {
//todoBI it is dubious to just place a catch-all Exception here. I'm not sure why it was put in.
return super.getArgNamesAndTypes(qualifiedFunctionName);
}
}
}