forked from JavaTX/JavaCompilerCore
626 lines
26 KiB
Java
626 lines
26 KiB
Java
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// ino.module.IfStmt.8632.package
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package mycompiler.mystatement;
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// ino.end
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// ino.module.IfStmt.8632.import
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import java.util.Enumeration;
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import java.util.Hashtable;
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import java.util.Iterator;
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import java.util.Vector;
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import mycompiler.mybytecode.ClassFile;
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import mycompiler.mybytecode.CodeAttribute;
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import mycompiler.mybytecode.JVMCode;
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import mycompiler.myclass.Class;
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import mycompiler.myexception.CTypeReconstructionException;
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import mycompiler.myexception.JVMCodeException;
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import mycompiler.myexception.SCExcept;
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import mycompiler.myexception.SCStatementException;
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import mycompiler.myoperator.LogOp;
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import mycompiler.myoperator.Operator;
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import mycompiler.myoperator.RelOp;
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import mycompiler.mytype.BooleanType;
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import mycompiler.mytype.GenericTypeVar;
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import mycompiler.mytype.Pair;
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import mycompiler.mytype.RefType;
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import mycompiler.mytype.Type;
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import mycompiler.mytype.TypePlaceholder;
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import mycompiler.mytype.Void;
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import mycompiler.mytypereconstruction.CSubstitution;
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import mycompiler.mytypereconstruction.CSupportData;
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import mycompiler.mytypereconstruction.CTriple;
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import mycompiler.mytypereconstruction.replacementlistener.CReplaceTypeEvent;
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import mycompiler.mytypereconstruction.set.CSubstitutionSet;
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import mycompiler.mytypereconstruction.set.CTripleSet;
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import mycompiler.mytypereconstruction.set.CTypeAssumptionSet;
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import mycompiler.mytypereconstruction.typeassumption.CTypeAssumption;
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import mycompiler.mytypereconstruction.unify.MUB;
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import mycompiler.mytypereconstruction.unify.Unify;
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import org.apache.log4j.Logger;
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// ino.end
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import sun.reflect.generics.reflectiveObjects.NotImplementedException;
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import typinferenz.JavaCodeResult;
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import typinferenz.SingleConstraint;
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import typinferenz.ConstraintsSet;
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import typinferenz.FreshTypeVariable;
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import typinferenz.ResultSet;
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import typinferenz.TypeAssumptions;
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// ino.class.IfStmt.25300.declaration
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public class IfStmt extends Statement
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// ino.end
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// ino.class.IfStmt.25300.body
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{
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// ino.method.IfStmt.25304.definition
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public IfStmt(int offset, int variableLength)
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// ino.end
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// ino.method.IfStmt.25304.body
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{
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super(offset,variableLength);
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}
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// ino.end
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// ino.attribute.hamaDebug.25307.declaration
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public boolean hamaDebug = true; //hama: Debug Ausgaben von mir ein- bzw. ausschalten
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// ino.end
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// ino.attribute.expr.25310.declaration
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public Expr expr;
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// ino.end
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// ino.attribute.then_block.25313.declaration
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public Statement then_block;
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// ino.end
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// ino.attribute.else_block.25316.declaration
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public Statement else_block;
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// ino.end
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// ino.attribute.parserlog.25319.declaration
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protected static Logger parserlog = Logger.getLogger("parser");
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// ino.end
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// ino.method.set_Expr.25322.definition
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public void set_Expr(Expr exp)
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// ino.end
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// ino.method.set_Expr.25322.body
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{
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this.expr = exp;
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}
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// ino.end
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// ino.method.set_Then_block.25325.definition
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public void set_Then_block(Statement blk)
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// ino.end
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// ino.method.set_Then_block.25325.body
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{
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this.then_block = blk;
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}
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// ino.end
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// ino.method.set_Else_block.25328.definition
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public void set_Else_block(Statement blk)
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// ino.end
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// ino.method.set_Else_block.25328.body
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{
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this.else_block = blk;
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}
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// ino.end
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// ino.method.sc_check.25331.definition
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void sc_check(Vector<Class> classname, Hashtable ch, Hashtable<String, String> bh, boolean ext, Hashtable parach, Hashtable<String, Hashtable> parabh)
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throws SCStatementException
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// ino.end
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// ino.method.sc_check.25331.body
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{
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if(ext)
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{
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parserlog.debug(" ---IfStmt---");
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}
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SCStatementException exc = null;
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try
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{
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expr.sc_check(classname,ch,bh,ext,parach, parabh);
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}
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catch(SCStatementException ex)
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{
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exc = ex;
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}
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try
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{
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then_block.sc_check(classname,ch,(Hashtable) bh.clone(), ext, parach, (Hashtable)parabh.clone());
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}
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catch(SCStatementException ex)
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{
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if(exc == null)
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{
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exc = ex;
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}
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else
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{
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Vector<SCExcept> v=ex.get_exlist();
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SCExcept hilfe;
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for(Enumeration<SCExcept> el = v.elements() ; el.hasMoreElements() ; )
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{
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hilfe=el.nextElement();
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exc.addException(hilfe);
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}
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}
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}
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if(else_block != null)
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{
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try
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{
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else_block.sc_check(classname,ch,(Hashtable) bh.clone(), ext, parach, (Hashtable)parabh.clone());
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}
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catch(SCStatementException ex)
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{
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if(exc == null)
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{
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exc=ex;
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}
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else
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{
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Vector<SCExcept> v=ex.get_exlist();
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SCExcept hilfe;
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for(Enumeration<SCExcept> el=v.elements() ; el.hasMoreElements() ; )
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{
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hilfe=el.nextElement();
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exc.addException(hilfe);
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}
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}
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}
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}
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if(exc != null)
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{
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throw exc;
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}
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}
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// ino.end
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// ino.method.codegen.25334.definition
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public void codegen(ClassFile classfile, CodeAttribute code, Vector paralist)
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throws JVMCodeException
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// ino.end
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// ino.method.codegen.25334.body
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{
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if_codegen(classfile, code, false, paralist);
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}
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// ino.end
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// ino.method.if_codegen.25337.definition
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public void if_codegen(ClassFile classfile, CodeAttribute code, boolean not, Vector paralist)
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throws JVMCodeException
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// ino.end
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// ino.method.if_codegen.25337.body
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{
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if(expr instanceof NotExpr)
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{
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expr = ((NotExpr)expr).get_Expr();
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if_codegen(classfile, code, !not, paralist);
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}
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else
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{
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if(expr instanceof Binary)
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{
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Operator op = ((Binary)expr).get_Operator();
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if(op instanceof LogOp)
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{
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((LogOp)op).if_codegen(classfile, code, not, expr, then_block, else_block, paralist);
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}
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else
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{
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if(op instanceof RelOp)
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{
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Expr expr1 = ((Binary)expr).get_Expr1();
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Expr expr2 = ((Binary)expr).get_Expr2();
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expr1.codegen(classfile, code, paralist);
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expr2.codegen(classfile, code, paralist);
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if(expr1 instanceof Null || expr2 instanceof Null)
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{
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((RelOp)op).if_codegen(classfile, code, "null", not);
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}
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else
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{
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((RelOp)op).if_codegen(classfile, code, expr1.getTypeName(), not);
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}
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int breakpoint1 = code.get_code_length();
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code.add_code_short(0);
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if(then_block!=null)
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{
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then_block.codegen(classfile, code, paralist);
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code.set_code_short(code.get_code_length() + 1 - breakpoint1, breakpoint1);
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}
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int breakpoint2 = code.get_code_length();
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if(else_block != null)
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{
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code.add_code(JVMCode.goto_);
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code.add_code_short(0); // replaced later
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else_block.codegen(classfile, code, paralist);
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code.set_code_short(breakpoint2 + 4 - breakpoint1, breakpoint1);
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code.set_code_short(code.get_code_length() - breakpoint2, breakpoint2 + 1);
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}
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}
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else
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{
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throw new JVMCodeException("JVMCodeException: IfStmt: void if_codegen(ClassFile classfile, Code_attribute code, boolean not)");
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}
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}
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}
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else
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{
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expr.codegen(classfile, code, paralist);
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if(!not)
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{
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code.add_code(JVMCode.ifeq);
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}
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else
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{
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code.add_code(JVMCode.ifne);
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}
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int breakpoint1 = code.get_code_length();
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code.add_code_short(0);
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if(then_block!=null)
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{
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then_block.codegen(classfile, code, paralist);
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code.set_code_short(code.get_code_length() + 1 - breakpoint1, breakpoint1);
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}
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int breakpoint2 = code.get_code_length();
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if(!(else_block==null || else_block instanceof EmptyStmt))
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{
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//hama: Die zwei folgenen if-Abfragen wurden eingef<65>gt und beheben den Bug,
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//der zuerst im Use Case Toggle1 bemerkt wurde. Hier wird nun gepr<70>ft ob der
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//letzte Befehl in einem if-Block ein return war. Trifft dieser Fall zu,
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//so wird kein goto Befehl (f<>r das <20>berspringen des else-Blocks eingef<65>gt)
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//-> das verlangt die vm ->der code w<>re nicht erreichbar.
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//Allerdings k<>nnte das return-Statement nat<61>rlich auch an einer anderen
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//Stelle (nicht als letzter Befehl) stehen, f<>r diesen Fall d<>rfte die
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//Codegenerierung noch nicht funktionieren. Hab versucht diesen Fall mit
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//Toggle3 zu erzeugen - wird aber richtig generiert.
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//letztes Statement im Vector in s schreiben
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//Statement s = (Statement)(((Block)this.then_block).statements.lastElement());
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//Instanz von Return zum pr<70>fen anlegen
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Return r = new Return(getOffset(),getVariableLength());
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if( !(((Block)this.then_block).statements.lastElement()).getClass().equals(r.getClass()) )
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{
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code.add_code(JVMCode.goto_);
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code.add_code_short(0);
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}
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else_block.codegen(classfile, code, paralist);
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if( !(((Block)this.then_block).statements.lastElement()).getClass().equals(r.getClass()) )
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{
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code.set_code_short(breakpoint2 + 4 - breakpoint1, breakpoint1);
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code.set_code_short(code.get_code_length()-breakpoint2, breakpoint2 + 1);
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}
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}
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}
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}
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}
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// ino.end
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// ino.method.TRStatement.25340.defdescription type=javadoc
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/**
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* Implementierung des Algorithmus 5.21 von Martin Pl<EFBFBD>micke
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* <br/>Achtung Workaround: RefType "Boolean" durch BaseType \code{BooleanType}
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* ersetzen. <br>Author: J<EFBFBD>rg B<EFBFBD>uerle
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* @param sigma
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* @param V
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* @param supportData
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* @return
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*/
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// ino.end
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// ino.method.TRStatement.25340.definition
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public CTripleSet TRStatement(CSubstitutionSet sigma, CTypeAssumptionSet V, CSupportData supportData)
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throws CTypeReconstructionException
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// ino.end
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// ino.method.TRStatement.25340.body
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{
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CTripleSet returnSet = new CTripleSet();
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// --------------------------
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// Bedingungsausdruck rekonstruieren:
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// --------------------------
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CTripleSet exprTSet = this.expr.TRExp(sigma, V, supportData);
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// --------------------------
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// Bedingungs-Triple durchgehen:
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// --------------------------
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Iterator<CTriple> exprTIt = exprTSet.getIterator();
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while(exprTIt.hasNext()){
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CTriple exprTriple = exprTIt.next();
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// --------------------------
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// ReturnType mit Boolean unifizieren:
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// --------------------------
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// Sollte doch mit "boolean" statt "Boolean" unifiziert werden?
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// Vector<Vector<Pair>> unifierPossibilities1 = Unify.unify(exprTriple.getResultType(), new BooleanType()/*new RefType("Boolean")*/, supportData.getFiniteClosure());
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Vector<Vector<Pair>> unifierPossibilities1 = Unify.unify(exprTriple.getResultType(), new RefType("java.lang.Boolean",getOffset()), supportData.getFiniteClosure());
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|
|
// --------------------------
|
|||
|
|
// Wenn Unifier vorhanden, dann anwenden:
|
|||
|
|
// --------------------------
|
|||
|
|
if(unifierPossibilities1.size()!=0){
|
|||
|
|
// --------------------------
|
|||
|
|
// Alle m<>glichen Unifier anwenden:
|
|||
|
|
// --------------------------
|
|||
|
|
|
|||
|
|
Vector<CTypeReconstructionException> exceptions=new Vector<CTypeReconstructionException>();
|
|||
|
|
int successfulls=0;
|
|||
|
|
|
|||
|
|
for(int i=0; i<unifierPossibilities1.size(); i++){
|
|||
|
|
try{
|
|||
|
|
CSubstitutionSet unifier1 = new CSubstitutionSet(unifierPossibilities1.elementAt(i));
|
|||
|
|
CTriple boolTriple = exprTriple.cloneAndApplyUnify(unifier1);
|
|||
|
|
// --------------------------
|
|||
|
|
// Then-Zweig rekonstruieren:
|
|||
|
|
// --------------------------
|
|||
|
|
CTripleSet thenTSet = this.then_block.TRStatement(boolTriple.getSubstitutions(), boolTriple.getAssumptionSet(), supportData);
|
|||
|
|
// --------------------------
|
|||
|
|
// ReturnType <20>berpr<70>fen:
|
|||
|
|
// --------------------------
|
|||
|
|
boolean isThenBlockVoid = false;
|
|||
|
|
if(thenTSet.getCardinality()!=0){
|
|||
|
|
isThenBlockVoid = (thenTSet.getVector().firstElement().getResultType() instanceof Void);
|
|||
|
|
}
|
|||
|
|
// --------------------------
|
|||
|
|
// Then-Triples durchgehen:
|
|||
|
|
// --------------------------
|
|||
|
|
Iterator<CTriple> thenTIt = thenTSet.getIterator();
|
|||
|
|
while(thenTIt.hasNext()){
|
|||
|
|
CTriple thenTriple = thenTIt.next();
|
|||
|
|
// --------------------------
|
|||
|
|
// Else-Zweig rekonstruieren:
|
|||
|
|
// --------------------------
|
|||
|
|
if(this.else_block==null){
|
|||
|
|
returnSet.addElement(thenTriple);
|
|||
|
|
continue;
|
|||
|
|
}
|
|||
|
|
CTripleSet elseTSet = this.else_block.TRStatement(thenTriple.getSubstitutions(), thenTriple.getAssumptionSet(), supportData);
|
|||
|
|
// --------------------------
|
|||
|
|
// ReturnType <20>berpr<70>fen:
|
|||
|
|
// --------------------------
|
|||
|
|
//boolean isElseBlockVoid = false;
|
|||
|
|
if(elseTSet.getCardinality()!=0){
|
|||
|
|
///*isElseBlockVoid =*/ (((CTriple)elseTSet.getVector().firstElement()).getResultType() instanceof Void);
|
|||
|
|
}
|
|||
|
|
// --------------------------
|
|||
|
|
// Else-Triples durchgehen:
|
|||
|
|
// --------------------------
|
|||
|
|
Iterator<CTriple> elseTIt = elseTSet.getIterator();
|
|||
|
|
while(elseTIt.hasNext()){
|
|||
|
|
CTriple elseTriple = elseTIt.next();
|
|||
|
|
// --------------------------
|
|||
|
|
// Wenn Void, Typannahmen zur<75>ckliefern:
|
|||
|
|
// --------------------------
|
|||
|
|
if(isThenBlockVoid){
|
|||
|
|
/*
|
|||
|
|
Urspr<EFBFBD>nglich nach Pl<EFBFBD>micke:
|
|||
|
|
if(isElseBlockVoid){
|
|||
|
|
returnSet.addElement(new CTriple(elseTriple.getSubstitutions(), elseTriple.getResultType(), elseTriple.getAssumptionSet()));
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
throw new CTypeReconstructionException("IfStmt.TRStatement(): Typen nicht vereinbar - Then-Zweig hat ReturnType, Else-Zweig ist Void");
|
|||
|
|
} */ // Korrekt aber so:
|
|||
|
|
returnSet.addElement(new CTriple(elseTriple.getSubstitutions(), elseTriple.getResultType(), elseTriple.getAssumptionSet()));
|
|||
|
|
}
|
|||
|
|
// --------------------------+
|
|||
|
|
// Ansonsten ReturnTypes-unifizieren:
|
|||
|
|
// --------------------------
|
|||
|
|
else {
|
|||
|
|
// --------------------------
|
|||
|
|
// MUB berechen
|
|||
|
|
// --------------------------
|
|||
|
|
MUB mub = Unify.unify_Mub(thenTriple.getResultType(), elseTriple.getResultType(), supportData.getFiniteClosure());
|
|||
|
|
// --------------------------
|
|||
|
|
// Unifier anwenden:
|
|||
|
|
// --------------------------
|
|||
|
|
this.makeNewResult(mub, elseTriple, elseTriple.getAssumptionSet(), returnSet);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
successfulls++;
|
|||
|
|
}catch(CTypeReconstructionException tre){
|
|||
|
|
exceptions.addElement(tre);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if(successfulls==0){
|
|||
|
|
if(exceptions.size()==1){
|
|||
|
|
throw exceptions.elementAt(0);
|
|||
|
|
}
|
|||
|
|
throw new CTypeReconstructionException("IfStmt: Es konnte keine Assumption gefunden werden, die auf die Anforderung passt.",exceptions,this);
|
|||
|
|
}
|
|||
|
|
}else {
|
|||
|
|
throw new CTypeReconstructionException("IfStmt.TRStatement(): Bedingung muss boolean sein!",this);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return returnSet;
|
|||
|
|
}
|
|||
|
|
// ino.end
|
|||
|
|
|
|||
|
|
// ino.method.makeNewResult.25343.definition
|
|||
|
|
private void makeNewResult(MUB Mub, CTriple triple, CTypeAssumptionSet V, CTripleSet returnSet)
|
|||
|
|
throws CTypeReconstructionException
|
|||
|
|
// ino.end
|
|||
|
|
// ino.method.makeNewResult.25343.body
|
|||
|
|
{
|
|||
|
|
CSubstitutionSet unifier = new CSubstitutionSet(Mub.getUnifier());
|
|||
|
|
// --------------------------
|
|||
|
|
// Typannahmen bauen:
|
|||
|
|
// --------------------------
|
|||
|
|
CTypeAssumptionSet V_substituted = V.deepCopy();
|
|||
|
|
V_substituted.sub(unifier);
|
|||
|
|
// --------------------------
|
|||
|
|
// Substitutionen bauen:
|
|||
|
|
// --------------------------
|
|||
|
|
CSubstitutionSet substSet = triple.getSubstitutions().deepCopy();
|
|||
|
|
substSet.applyUnifier(unifier);
|
|||
|
|
substSet.unite(unifier);
|
|||
|
|
// --------------------------
|
|||
|
|
// R<>ckgabetyp bauen:
|
|||
|
|
// --------------------------
|
|||
|
|
Iterator<? extends Type> setMubIt = Mub.getMub().iterator();
|
|||
|
|
|
|||
|
|
while(setMubIt.hasNext()) {
|
|||
|
|
Type retType = setMubIt.next();
|
|||
|
|
Type retType2 = substSet.applyThisSubstitutionSet(retType.clone());
|
|||
|
|
// Muesste eigentlich cloneAndApplyUnify machen PL 06-03-18
|
|||
|
|
// If(Rettype Instanceof TypePlaceholders){
|
|||
|
|
// Iterator<Csubstitution> Pairit = Unifier.Getiterator();
|
|||
|
|
// While(Pairit.Hasnext()){
|
|||
|
|
// Csubstitution Pair = Pairit.Next();
|
|||
|
|
// If(Pair.Gettypevar().Getname().Equals(Rettype.Getname())){
|
|||
|
|
// Rettype = Pair.Gettype();
|
|||
|
|
// Break;
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
// --------------------------
|
|||
|
|
CTriple resultTriple = new CTriple(substSet, retType2, V_substituted);
|
|||
|
|
//CSubstitutionSet CSubstUnifier = new CSubstitutionSet(unifier);
|
|||
|
|
//CTriple resultTriple2 = retTriple.cloneAndApplyUnify(CSubstUnifier);
|
|||
|
|
// --------------------------
|
|||
|
|
// Triple zu R<>ckgabemenge hinzuf<75>gen
|
|||
|
|
// --------------------------
|
|||
|
|
if(!returnSet.contains(resultTriple)){
|
|||
|
|
returnSet.addElement(resultTriple);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// ino.end
|
|||
|
|
|
|||
|
|
|
|||
|
|
// ino.method.applyUnifier.25346.definition
|
|||
|
|
private void applyUnifier(Vector<Vector<Pair>> unifierPossibilities, CTriple triple, CTypeAssumptionSet V, CTripleSet returnSet)
|
|||
|
|
throws CTypeReconstructionException
|
|||
|
|
// ino.end
|
|||
|
|
// ino.method.applyUnifier.25346.body
|
|||
|
|
{
|
|||
|
|
// --------------------------
|
|||
|
|
// Wenn Unifier vorhanden, dann anwenden:
|
|||
|
|
// --------------------------
|
|||
|
|
if(unifierPossibilities.size()!=0){
|
|||
|
|
// --------------------------
|
|||
|
|
// Alle m<>glichen Unifier auf V_i,j anwenden:
|
|||
|
|
// --------------------------
|
|||
|
|
for(int k=0; k<unifierPossibilities.size(); k++){
|
|||
|
|
CSubstitutionSet unifier = new CSubstitutionSet(unifierPossibilities.elementAt(k));
|
|||
|
|
// --------------------------
|
|||
|
|
// Typannahmen bauen:
|
|||
|
|
// --------------------------
|
|||
|
|
CTypeAssumptionSet V_substituted = V.deepCopy();
|
|||
|
|
V_substituted.sub(unifier);
|
|||
|
|
// --------------------------
|
|||
|
|
// Substitutionen bauen:
|
|||
|
|
// --------------------------
|
|||
|
|
CSubstitutionSet substSet = triple.getSubstitutions().deepCopy();
|
|||
|
|
substSet.applyUnifier(unifier);
|
|||
|
|
substSet.unite(unifier);
|
|||
|
|
// --------------------------
|
|||
|
|
// R<>ckgabetyp bauen:
|
|||
|
|
// --------------------------
|
|||
|
|
Type retType = triple.getResultType();
|
|||
|
|
if(retType instanceof TypePlaceholder){
|
|||
|
|
Iterator<CSubstitution> pairIt = unifier.getIterator();
|
|||
|
|
while(pairIt.hasNext()){
|
|||
|
|
CSubstitution pair = pairIt.next();
|
|||
|
|
if(pair.getTypeVar().getName().equals(retType.getName())){
|
|||
|
|
retType = pair.getType();
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// --------------------------
|
|||
|
|
CTriple resultTriple = new CTriple(substSet, retType, V_substituted);
|
|||
|
|
// --------------------------
|
|||
|
|
// Triple zu R<>ckgabemenge hinzuf<75>gen
|
|||
|
|
// --------------------------
|
|||
|
|
if(!returnSet.contains(resultTriple)){
|
|||
|
|
returnSet.addElement(resultTriple);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// --------------------------
|
|||
|
|
// Ansonsten Fehlermeldung:
|
|||
|
|
// --------------------------
|
|||
|
|
else {
|
|||
|
|
throw new CTypeReconstructionException("IfStmt.TRStatement(): Block-Typen lassen sich nicht unifizieren.",this);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// ino.end
|
|||
|
|
// ino.method.wandleRefTypeAttributes2GenericAttributes.25349.definition
|
|||
|
|
public void wandleRefTypeAttributes2GenericAttributes(Vector<Type> paralist, Vector<GenericTypeVar> genericMethodParameters)
|
|||
|
|
// ino.end
|
|||
|
|
// ino.method.wandleRefTypeAttributes2GenericAttributes.25349.body
|
|||
|
|
{
|
|||
|
|
if(then_block!=null){
|
|||
|
|
then_block.wandleRefTypeAttributes2GenericAttributes(paralist,genericMethodParameters);
|
|||
|
|
}
|
|||
|
|
if(else_block!=null){
|
|||
|
|
else_block.wandleRefTypeAttributes2GenericAttributes(paralist,genericMethodParameters);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
// ino.end
|
|||
|
|
|
|||
|
|
public boolean addOffsetsToStatement(CTypeAssumption localAssumption, String NameVariable, boolean isMemberVariable)
|
|||
|
|
{
|
|||
|
|
expr.addOffsetsToExpression(localAssumption,NameVariable,isMemberVariable);
|
|||
|
|
else_block.addOffsetsToStatement(localAssumption,NameVariable,isMemberVariable);
|
|||
|
|
then_block.addOffsetsToStatement(localAssumption,NameVariable,isMemberVariable);
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
@Override
|
|||
|
|
public ConstraintsSet TYPEStmt(TypeAssumptions assumptions) {
|
|||
|
|
ConstraintsSet ret = new ConstraintsSet();
|
|||
|
|
this.setTypeVariable(TypePlaceholder.fresh(this));
|
|||
|
|
|
|||
|
|
ret.add(expr.TYPEExpr(assumptions)); // die Constraints f<>r (expressionDesIfStmt)
|
|||
|
|
ret.add(this.then_block.TYPEStmt(assumptions));
|
|||
|
|
if(else_block!=null){
|
|||
|
|
ret.add(this.else_block.TYPEStmt(assumptions));
|
|||
|
|
if(!(else_block.getTypeVariable() instanceof Void))ret.add(new SingleConstraint(else_block.getTypeVariable(),this.getTypeVariable()));
|
|||
|
|
}
|
|||
|
|
ret.add(new SingleConstraint(expr.getTypeVariable(),new RefType("boolean",0))); //(expressionDesIfStmt)<.boolean
|
|||
|
|
if(!(then_block.getTypeVariable() instanceof Void))ret.add(new SingleConstraint(then_block.getTypeVariable(),this.getTypeVariable()));
|
|||
|
|
if(then_block.getTypeVariable() instanceof Void &&
|
|||
|
|
(else_block == null || else_block.getTypeVariable() instanceof Void))this.setTypeVariable(new Void(this.getOffset()));
|
|||
|
|
return ret;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void replaceType(CReplaceTypeEvent e) {
|
|||
|
|
// TODO Auto-generated method stub
|
|||
|
|
throw new NotImplementedException();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public int getTypeLineNumber() {
|
|||
|
|
throw new NotImplementedException();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
@Override
|
|||
|
|
public JavaCodeResult printJavaCode(ResultSet resultSet) {
|
|||
|
|
JavaCodeResult ret = new JavaCodeResult("If(").attach(this.expr.printJavaCode(resultSet)).attach("){\n");
|
|||
|
|
if(this.then_block!=null)ret.attach(this.then_block.printJavaCode(resultSet));
|
|||
|
|
ret.attach("\n}else{\n");
|
|||
|
|
if(this.else_block!=null)ret.attach(this.else_block.printJavaCode(resultSet));
|
|||
|
|
ret.attach("\n}");
|
|||
|
|
return ret;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// ino.end
|