forked from JavaTX/JavaCompilerCore
316 lines
11 KiB
Java
316 lines
11 KiB
Java
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// ino.module.WhileStmt.8659.package
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package mycompiler.mystatement;
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// ino.end
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// ino.module.WhileStmt.8659.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.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.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.ResultSet;
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import typinferenz.TypeAssumptions;
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// ino.class.WhileStmt.26326.declaration
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public class WhileStmt extends Statement
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// ino.end
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// ino.class.WhileStmt.26326.body
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{
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// ino.method.WhileStmt.26330.definition
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public WhileStmt(int offset, int variableLength)
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// ino.end
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// ino.method.WhileStmt.26330.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.expr.26333.declaration
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public Expr expr;
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// ino.end
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// ino.attribute.loop_block.26336.declaration
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public Statement loop_block;
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// ino.end
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// ino.attribute.parserlog.26339.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.26342.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.26342.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_Loop_block.26345.definition
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public void set_Loop_block(Statement blk)
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// ino.end
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// ino.method.set_Loop_block.26345.body
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{
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this.loop_block = blk;
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}
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// ino.end
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// ino.method.sc_check.26348.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.26348.body
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{
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if(ext)
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parserlog.debug(" ---WhileStmt---");
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SCStatementException exc=null;
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if(ext)
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{
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parserlog.debug("Semantik-Check ist in der Klasse WhileStmt");
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parserlog.debug("Semantik-Check ueberprueft While-Bedingung-Expression.");
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}
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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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loop_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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exc=ex;
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else
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{
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Vector<SCExcept> v;
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SCExcept hilf;
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v=ex.get_exlist();
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for(Enumeration<SCExcept> el=v.elements();el.hasMoreElements();)
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{
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hilf=el.nextElement();
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exc.addException(hilf);
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}
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}
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}
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if(exc!=null)
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throw exc;
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}
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// ino.end
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// ino.method.codegen.26351.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.26351.body
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{
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if(loop_block!=null && expr!=null) {
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code.add_code(JVMCode.goto_);
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int breakpoint = code.get_code_length();
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code.add_code_short(0);
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loop_block.codegen(classfile, code, paralist);
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code.set_code_short(code.get_code_length() + 1 - breakpoint, breakpoint);
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loop_codegen(classfile, code, breakpoint, false, paralist);
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}
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}
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// ino.end
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// ino.method.loop_codegen.26354.definition
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public void loop_codegen(ClassFile classfile, CodeAttribute code, int breakpoint, boolean not, Vector paralist)
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throws JVMCodeException
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// ino.end
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// ino.method.loop_codegen.26354.body
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{
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if(expr instanceof NotExpr) {
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expr = ((NotExpr)expr).get_Expr();
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loop_codegen(classfile, code, breakpoint, !not, paralist);
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}
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else if(expr instanceof Binary) {
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Operator op = ((Binary)expr).get_Operator();
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if(op instanceof LogOp) ((LogOp)op).loop_codegen(classfile, code, expr, breakpoint, !not, paralist);
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else if(op instanceof RelOp) {
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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) ((RelOp)op).if_codegen(classfile, code, "null", !not);
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else ((RelOp)op).if_codegen(classfile, code, expr1.getTypeName(), !not);
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code.add_code_short(breakpoint + 3 - code.get_code_length());
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}
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else throw new JVMCodeException("JVMCodeException: WhileStmt: void loop_codegen(ClassFile classfile, Code_attribute code, int breakpoint, boolean not)");
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}
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else {
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expr.codegen(classfile, code, paralist);
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if(!not) code.add_code(JVMCode.ifne);
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else code.add_code(JVMCode.ifeq);
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code.add_code_short(breakpoint + 3 - code.get_code_length());
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}
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}
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// ino.end
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// ino.method.TRStatement.26357.defdescription type=javadoc
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/**
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* Implementierung des Algorithmus 5.23 von Martin Pl<EFBFBD>micke
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* <br/>Achtung Workaround: RefType "Boolean" muss noch durch BaseType
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* "BooleanType" ersetzt werden.
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* <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.26357.definition
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public CTripleSet TRStatement(CSubstitutionSet sigma, CTypeAssumptionSet V, CSupportData supportData)
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// ino.end
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// ino.method.TRStatement.26357.body
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{
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CTripleSet returnSet = new CTripleSet();
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CTripleSet tripleSet = expr.TRExp(sigma, V, supportData);
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Iterator<CTriple> exprTIt = tripleSet.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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Vector<Vector<Pair>> unifierPossibilities1 = Unify.unify(exprTriple.getResultType(), new RefType("java.lang.Boolean",getOffset()), supportData.getFiniteClosure());
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// --------------------------
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// Wenn Unifier vorhanden, dann anwenden:
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// --------------------------
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if(unifierPossibilities1.size()!=0){
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// --------------------------
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// Alle m<>glichen Unifier anwenden:
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// --------------------------
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int successfulls=0;
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Vector<CTypeReconstructionException> exceptions=new Vector<CTypeReconstructionException>();
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for(int i=0; i<unifierPossibilities1.size(); i++){
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try{
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CSubstitutionSet unifier1 = new CSubstitutionSet(unifierPossibilities1.elementAt(i));
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CTriple boolTriple = exprTriple.cloneAndApplyUnify(unifier1);
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returnSet.unite(this.loop_block.TRStatement(boolTriple.getSubstitutions(), boolTriple.getAssumptionSet(), supportData));
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successfulls++;
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}catch(CTypeReconstructionException tre){
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exceptions.addElement(tre);
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}
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if(successfulls==0){
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if(exceptions.size()==1){
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throw exceptions.elementAt(0);
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}
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throw new CTypeReconstructionException("WhileStmt: Es konnte keine Assumption gefunden werden, die auf die Anforderung passt.",exceptions,this);
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}
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}
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}
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else {
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throw new CTypeReconstructionException("WhileStmt.TRStatement(): Bedingung muss boolean sein!",this);
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}
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}
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return returnSet;
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}
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// ino.end
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// ino.method.toString.26360.defdescription type=javadoc
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/**
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* <br/>Author: Martin Pl<EFBFBD>micke
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* @return
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*/
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// ino.end
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// ino.method.toString.26360.definition
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public String toString()
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// ino.end
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// ino.method.toString.26360.body
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{
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return "WHILE " + loop_block.toString();
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}
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// ino.end
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// ino.method.wandleRefTypeAttributes2GenericAttributes.26363.definition
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public void wandleRefTypeAttributes2GenericAttributes(Vector<Type> paralist, Vector<GenericTypeVar> genericMethodParameters)
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// ino.end
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// ino.method.wandleRefTypeAttributes2GenericAttributes.26363.body
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{
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if(loop_block!=null){
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loop_block.wandleRefTypeAttributes2GenericAttributes(paralist,genericMethodParameters);
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}
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}
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// ino.end
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public boolean addOffsetsToStatement(CTypeAssumption localAssumption, String NameVariable, boolean isMemberVariable)
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{
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expr.addOffsetsToExpression(localAssumption,NameVariable,isMemberVariable);
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loop_block.addOffsetsToStatement(localAssumption,NameVariable,isMemberVariable);
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return true;
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}
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@Override
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public ConstraintsSet TYPEStmt(TypeAssumptions assumptions) {
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ConstraintsSet ret = new ConstraintsSet();
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ret.add(expr.TYPEExpr(assumptions));
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SingleConstraint exprMustBeBool = new SingleConstraint(expr.getTypeVariable(), new RefType("boolean", 0)); // while(expr){}; expr <. boolean
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ret.add(exprMustBeBool);
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ret.add(this.loop_block.TYPEStmt(assumptions));
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this.setTypeVariable(loop_block.getTypeVariable());
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return ret;
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}
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public void replaceType(CReplaceTypeEvent e) {
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// TODO Auto-generated method stub
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throw new NotImplementedException();
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}
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public int getTypeLineNumber() {
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throw new NotImplementedException();
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}
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@Override
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public JavaCodeResult printJavaCode(ResultSet resultSet) {
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return new JavaCodeResult().attach("while(").attach(this.expr.printJavaCode(resultSet)).attach(")").attach(this.loop_block.printJavaCode(resultSet));
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}
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}
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// ino.end
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