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CGen.java
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CGen.java
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package org.overture.codegen.vdm2c;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.overture.ast.analysis.AnalysisException;
import org.overture.codegen.ir.CodeGenBase;
import org.overture.codegen.ir.IRConstants;
import org.overture.codegen.ir.IRStatus;
import org.overture.codegen.ir.IrNodeInfo;
import org.overture.codegen.ir.PIR;
import org.overture.codegen.ir.VdmNodeInfo;
import org.overture.codegen.ir.analysis.DepthFirstAnalysisAdaptor;
import org.overture.codegen.ir.declarations.ADefaultClassDeclIR;
import org.overture.codegen.ir.declarations.AFieldDeclIR;
import org.overture.codegen.ir.declarations.AFormalParamLocalParamIR;
import org.overture.codegen.ir.declarations.AMethodDeclIR;
import org.overture.codegen.ir.declarations.ARecordDeclIR;
import org.overture.codegen.ir.declarations.ASystemClassDeclIR;
import org.overture.codegen.ir.declarations.ATypeDeclIR;
import org.overture.codegen.ir.declarations.SClassDeclIR;
import org.overture.codegen.ir.expressions.AIdentifierVarExpIR;
import org.overture.codegen.ir.name.ATokenNameIR;
import org.overture.codegen.ir.statements.ABlockStmIR;
import org.overture.codegen.ir.types.AClassTypeIR;
import org.overture.codegen.ir.types.AMethodTypeIR;
import org.overture.codegen.utils.GeneratedData;
import org.overture.codegen.utils.GeneratedModule;
import org.overture.codegen.vdm2c.extast.declarations.AClassHeaderDeclIR;
import org.overture.codegen.vdm2c.sourceformat.ISourceFileFormatter;
import org.overture.codegen.vdm2c.transformations.AddFieldTrans;
import org.overture.codegen.vdm2c.utils.CTransUtil;
public class CGen extends CodeGenBase
{
private List<File> emittedFiles = new LinkedList<>();
private ISourceFileFormatter formatter;
public static Map<String, Boolean> hasTimeMap = null;
public CGen()
{
}
@Override
protected void preProcessAst(List<org.overture.ast.node.INode> ast)
throws AnalysisException
{
super.preProcessAst(ast);
hasTimeMap = TimeFinder.computeTimeMap(getClasses(ast));
}
public List<File> getEmittedFiles()
{
return emittedFiles;
}
public List<IRStatus<PIR>> makeRecsOuterClasses(List<IRStatus<PIR>> ast)
{
List<IRStatus<PIR>> extraClasses = new LinkedList<IRStatus<PIR>>();
for (IRStatus<ADefaultClassDeclIR> status : IRStatus.extract(ast, ADefaultClassDeclIR.class))
{
ADefaultClassDeclIR clazz = status.getIrNode();
List<ARecordDeclIR> recDecls = new LinkedList<ARecordDeclIR>();
for (ATypeDeclIR d : clazz.getTypeDecls())
{
if (d.getDecl() instanceof ARecordDeclIR)
{
recDecls.add((ARecordDeclIR) d.getDecl());
}
}
// Note that we do not remove the type declarations (or records) from the class.
// For each of the records we will make a top-level class
for (ARecordDeclIR recDecl : recDecls)
{
ADefaultClassDeclIR recClass = new ADefaultClassDeclIR();
recClass.setMetaData(recDecl.getMetaData());
recClass.setAbstract(false);
recClass.setAccess(IRConstants.PUBLIC);
recClass.setSourceNode(recDecl.getSourceNode());
recClass.setStatic(false);
recClass.setName(recDecl.getName());
if (recDecl.getInvariant() != null)
{
recClass.setInvariant(recDecl.getInvariant().clone());
}
// Copy the record fields to the class
List<AFieldDeclIR> fields = new LinkedList<AFieldDeclIR>();
for (AFieldDeclIR f : recDecl.getFields())
{
AFieldDeclIR newField = f.clone();
fields.add(newField);
}
recClass.setFields(fields);
AClassTypeIR retType = new AClassTypeIR();
retType.setName(recClass.getName());
AMethodTypeIR ctorMethodType = new AMethodTypeIR();
ctorMethodType.setResult(retType);
ABlockStmIR ctorBody = new ABlockStmIR();
AMethodDeclIR ctor = new AMethodDeclIR();
ctor.setIsConstructor(true);
ctor.setAbstract(false);
ctor.setAccess(IRConstants.PUBLIC);
ctor.setName(recClass.getName());
ctor.setBody(ctorBody);
ctor.setMethodType(ctorMethodType);
for(AFieldDeclIR f : recClass.getFields())
{
AFormalParamLocalParamIR param = new AFormalParamLocalParamIR();
String name = "param_" + f.getName();
param.setPattern(CTransUtil.newIdentifierPattern(name));
param.setType(f.getType().clone());
ctor.getFormalParams().add(param);
ctorMethodType.getParams().add(f.getType().clone());
AIdentifierVarExpIR target = CTransUtil.newIdentifier(f.getName(), f.getSourceNode());
target.setType(f.getType().clone());
target.setIsLocal(false);
AIdentifierVarExpIR assignVal = CTransUtil.newIdentifier(name, f.getSourceNode());
assignVal.setType(f.getType().clone());
ctorBody.getStatements().add(CTransUtil.newAssignment(
target, assignVal));
}
recClass.getMethods().add(ctor);
extraClasses.add(new IRStatus<PIR>(recClass.getSourceNode().getVdmNode(), recClass.getName(), recClass, new HashSet<VdmNodeInfo>()));
}
}
return extraClasses;
}
@Override
protected GeneratedData genVdmToTargetLang(List<IRStatus<PIR>> statuses)
throws AnalysisException
{
List<GeneratedModule> genModules = new LinkedList<GeneratedModule>();
statuses = replaceSystemClassWithClass(statuses);
statuses = ignoreVDMUnitTests(statuses);
List<IRStatus<PIR>> recClasses = makeRecsOuterClasses(statuses);
statuses.addAll(recClasses);
for(IRStatus<ADefaultClassDeclIR> r : IRStatus.extract(recClasses, ADefaultClassDeclIR.class))
{
getInfo().getClasses().add(r.getIrNode());
}
List<IRStatus<PIR>> canBeGenerated = new LinkedList<>();
for (IRStatus<PIR> status : statuses)
{
if (status.canBeGenerated())
{
canBeGenerated.add(status);
} else
{
genModules.add(new GeneratedModule(status.getIrNodeName(), status.getUnsupportedInIr(), new HashSet<IrNodeInfo>(), isTestCase(status)));
}
}
for(IRStatus<ADefaultClassDeclIR> r : IRStatus.extract(canBeGenerated, ADefaultClassDeclIR.class))
{
try
{
generator.applyPartialTransformation(r, new AddFieldTrans(transAssistant));
} catch (org.overture.codegen.ir.analysis.AnalysisException e)
{
e.printStackTrace();
}
}
generateClassHeaders(canBeGenerated);
applyTransformations(canBeGenerated);
VTableGenerator.generate(IRStatus.extract(canBeGenerated, AClassHeaderDeclIR.class));
CFormat my_formatter = consFormatter(canBeGenerated);
for (IRStatus<PIR> status : canBeGenerated)
{
try {
genModules.add(genIrModule(my_formatter.GetMergeVisitor(), status));
} catch (org.overture.codegen.ir.analysis.AnalysisException e) {
log.error("Error generating code for class " + status.getIrNodeName() + ": " + e.getMessage());
log.error("Skipping class..");
e.printStackTrace();
}
}
GeneratedData data = new GeneratedData();
data.setClasses(genModules);
return data;
}
private List<IRStatus<PIR>> ignoreVDMUnitTests(
List<IRStatus<PIR>> statuses)
{
List<IRStatus<PIR>> newstatuses = new LinkedList<IRStatus<PIR>>();
for (IRStatus<PIR> irStatus : statuses)
{
newstatuses.add(irStatus);
//First remove all VDMUnited.vdmrt-related classes.
if (irStatus.getIrNode() instanceof ADefaultClassDeclIR)
{
if(irStatus.getIrNodeName().equals("Test") ||
irStatus.getIrNodeName().equals("TestCase") ||
irStatus.getIrNodeName().equals("TestSuite") ||
irStatus.getIrNodeName().equals("TestListener") ||
irStatus.getIrNodeName().equals("TestResult") ||
irStatus.getIrNodeName().equals("TestRunner") ||
irStatus.getIrNodeName().equals("Throwable") ||
irStatus.getIrNodeName().equals("Error") ||
irStatus.getIrNodeName().equals("AssertionFailedError") ||
irStatus.getIrNodeName().equals("Assert"))
{
newstatuses.remove(irStatus);
continue;
}
//Next remove all test cases.
if(!((ADefaultClassDeclIR)irStatus.getIrNode()).getSuperNames().isEmpty())
{
for(ATokenNameIR i : ((ADefaultClassDeclIR)irStatus.getIrNode()).getSuperNames())
{
if(i.getName().equals("TestCase"))
{
newstatuses.remove(irStatus);
}
}
continue;
}
}
}
return newstatuses;
}
private List<IRStatus<PIR>> replaceSystemClassWithClass(
List<IRStatus<PIR>> statuses)
{
IRStatus<PIR> status = null;
for (IRStatus<PIR> irStatus : statuses)
{
if (irStatus.getIrNode() instanceof ASystemClassDeclIR)
{
status = irStatus;
}
}
if (status != null)
{
ASystemClassDeclIR systemDef = (ASystemClassDeclIR) status.getIrNode();
ADefaultClassDeclIR cDef = new ADefaultClassDeclIR();
cDef.setSourceNode(systemDef.getSourceNode());
cDef.setName(systemDef.getName());
for (AFieldDeclIR f : systemDef.getFields())
{
if (f.getType() instanceof AClassTypeIR)
{
AClassTypeIR type = (AClassTypeIR) f.getType();
if (type.getName().equals("CPU")
|| type.getName().equals("BUS"))
{
continue;
}
}
cDef.getFields().add(f.clone());
}
for(AMethodDeclIR i : systemDef.getMethods())
{
cDef.getMethods().add(i.clone());
}
status.setIrNode(cDef);
}
return statuses;
}
private void applyTransformations(final List<IRStatus<PIR>> statuses)
{
List<DepthFirstAnalysisAdaptor> transformations = new CTransSeries(this).consAnalyses();
for (DepthFirstAnalysisAdaptor trans : transformations)
{
for (IRStatus<ADefaultClassDeclIR> status : IRStatus.extract(statuses, ADefaultClassDeclIR.class))
{
try
{
generator.applyPartialTransformation(status, trans);
} catch (org.overture.codegen.ir.analysis.AnalysisException e)
{
log.error("Error when generating code for class "
+ status.getIrNodeName() + ": " + e.getMessage() + ". Skipping class..");
e.printStackTrace();
}
}
}
}
private CFormat consFormatter(final List<IRStatus<PIR>> statuses)
{
CFormat my_formatter = new CFormat(generator.getIRInfo(), new IHeaderFinder()
{
@Override
public AClassHeaderDeclIR getHeader(SClassDeclIR def)
{
for (IRStatus<PIR> irStatus : statuses)
{
if (irStatus.getIrNode() instanceof AClassHeaderDeclIR)
{
AClassHeaderDeclIR header = (AClassHeaderDeclIR) irStatus.getIrNode();
if (header.getOriginalDef() == def)
{
return header;
}
}
}
return null;
}
});
return my_formatter;
}
protected void generateClassHeaders(final List<IRStatus<PIR>> statuses)
{
try
{
statuses.addAll(new ClassHeaderGenerator().generateClassHeaders(IRStatus.extract(statuses, ADefaultClassDeclIR.class)));
} catch (org.overture.codegen.ir.analysis.AnalysisException e)
{
log.error("Could not generate class headers: " + e.getMessage());
e.printStackTrace();
}
}
public String getFileExtension(GeneratedModule generatedClass) {
String extension;
if (generatedClass.getIrNode() instanceof AClassHeaderDeclIR) {
extension = "h";
} else {
extension = "c";
}
return extension;
}
public void genCSourceFiles(File root,
List<GeneratedModule> generatedClasses) throws Exception, IOException
{
for (GeneratedModule classCg : generatedClasses)
{
if (classCg.canBeGenerated())
{
writeFile(classCg, root);
}
}
}
//TODO: PVJ use the emitCode method
public void writeFile(GeneratedModule module, File output_dir)
throws org.overture.codegen.ir.analysis.AnalysisException,
IOException
{
output_dir.mkdirs();
String fileName = module.getName() + "." + getFileExtension(module);
File file = new File(output_dir, fileName);
BufferedWriter output = new BufferedWriter(new FileWriter(file));
emittedFiles.add(new File(fileName));
output.write(module.getContent());
output.close();
if(formatter!=null)
{
formatter.format(file);
}
}
public void setSourceCodeFormatter(ISourceFileFormatter formatter)
{
this.formatter = formatter;
}
}