forked from JavaTX/JavaCompilerCore
Bytecode kann für folgende Operationen +,-,*,/,% erzeugt werden
This commit is contained in:
Fayez Abu Alia
parent
6b57aacef0
commit
35b99a4095
@ -16,6 +16,7 @@ import de.dhbwstuttgart.exceptions.NotImplementedException;
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import de.dhbwstuttgart.syntaxtree.statement.*;
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import org.objectweb.asm.ClassWriter;
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import org.objectweb.asm.Handle;
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import org.objectweb.asm.Label;
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import org.objectweb.asm.MethodVisitor;
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import org.objectweb.asm.Opcodes;
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import org.objectweb.asm.Type;
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@ -107,7 +108,6 @@ public class BytecodeGenMethod implements StatementVisitor{
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@Override
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public void visit(Block block) {
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for(Statement stmt : block.getStatements()) {
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// System.out.println(where);
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stmt.accept(this);
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}
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}
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@ -116,15 +116,20 @@ public class BytecodeGenMethod implements StatementVisitor{
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public void visit(SuperCall superCall) {
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superCall.receiver.accept(this);
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superCall.arglist.accept(this);
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mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class), superCall.name, "()V",isInterface);
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mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class),
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superCall.name, "()V",isInterface);
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}
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// ??
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@Override
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public void visit(LocalVar localVar) {
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// wenn String + String zuerst wird ein StringBuilder initialisiert dann
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// wird die lokale Var geladen. Sonst wird zuerst die lokale Var geladen.
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mv.visitVarInsn(Opcodes.ALOAD, paramsAndLocals.get(localVar.name));
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if(isBinaryExp) {
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getVlaue(getResolvedType(localVar.getType()));
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getVlaueIns(getResolvedType(localVar.getType()));
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}
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}
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// ??
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@ -152,27 +157,175 @@ public class BytecodeGenMethod implements StatementVisitor{
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assign.rightSide.accept(this);
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}
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if(isBinaryExp) {
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doAssign(getResolvedType(assign.lefSide.getType()));
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getValueOfIns(getResolvedType(assign.lefSide.getType()));
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isBinaryExp = false;
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}
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assign.lefSide.accept(this);
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}
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/*
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* Die folgeneden Fälle müssen noch betrachtet werden:
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* - Long OPARATION Integer usw.
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* */
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@Override
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public void visit(BinaryExpr binary) {
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String typeOfBinary = getResolvedType(binary.getType());
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if(typeOfBinary.equals(Type.getInternalName(String.class))) {
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mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(StringBuilder.class));
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mv.visitInsn(Opcodes.DUP);
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mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(StringBuilder.class),
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"<init>", "()V", false);
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}
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binary.lexpr.accept(this);
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binary.rexpr.accept(this);
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switch (binary.operation.toString()) {
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case "ADD":
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mv.visitInsn(Opcodes.IADD);
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doVisitAddOpInsn(typeOfBinary);
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break;
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case "SUB":
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doVisitSubOpInsn(typeOfBinary);
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break;
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case "MUL":
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doVisitMulOpInsn(typeOfBinary);
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break;
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case "DIV":
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doVisitDivOpInsn(typeOfBinary);
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break;
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case "MOD":
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doVisitModOpInsn(typeOfBinary);
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break;
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case "LESSTHAN":
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doVisitLessOpInsn(typeOfBinary);
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break;
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default:
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break;
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}
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}
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// TODO
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private void doVisitLessOpInsn(String typeOfBinary) {
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switch (typeOfBinary) {
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case "java/lang/Long":
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mv.visitInsn(Opcodes.LCMP);
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break;
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case "java/lang/Double":
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mv.visitInsn(Opcodes.DCMPG);
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break;
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case "java/lang/Float":
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mv.visitInsn(Opcodes.FCMPG);
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break;
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default:
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Label greaterEq = new Label();
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mv.visitJumpInsn(Opcodes.IF_ICMPGE, greaterEq);
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mv.visitInsn(Opcodes.ICONST_1);
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Label lessThan = new Label();
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mv.visitJumpInsn(Opcodes.GOTO, lessThan);
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mv.visitLabel(greaterEq);
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mv.visitInsn(Opcodes.ICONST_0);
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mv.visitLabel(lessThan);
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break;
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}
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}
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private void doVisitModOpInsn(String typeOfBinary) {
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switch (typeOfBinary) {
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case "java/lang/Long":
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mv.visitInsn(Opcodes.LREM);
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break;
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case "java/lang/Double":
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mv.visitInsn(Opcodes.DREM);
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break;
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case "java/lang/Float":
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mv.visitInsn(Opcodes.FREM);
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break;
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default:
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mv.visitInsn(Opcodes.IREM);
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break;
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}
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}
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private void doVisitDivOpInsn(String typeOfBinary) {
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switch (typeOfBinary) {
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case "java/lang/Long":
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mv.visitInsn(Opcodes.LDIV);
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break;
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case "java/lang/Double":
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mv.visitInsn(Opcodes.DDIV);
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break;
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case "java/lang/Float":
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mv.visitInsn(Opcodes.FDIV);
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break;
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default:
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mv.visitInsn(Opcodes.IDIV);
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break;
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}
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}
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private void doVisitMulOpInsn(String typeOfBinary) {
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switch (typeOfBinary) {
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case "java/lang/Long":
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mv.visitInsn(Opcodes.LMUL);
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break;
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case "java/lang/Double":
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mv.visitInsn(Opcodes.DMUL);
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break;
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case "java/lang/Float":
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mv.visitInsn(Opcodes.FMUL);
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break;
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default:
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mv.visitInsn(Opcodes.IMUL);
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break;
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}
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}
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private void doVisitSubOpInsn(String typeOfBinary) {
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switch (typeOfBinary) {
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case "java/lang/Long":
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mv.visitInsn(Opcodes.LSUB);
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break;
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case "java/lang/Double":
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mv.visitInsn(Opcodes.DSUB);
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break;
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case "java/lang/Float":
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mv.visitInsn(Opcodes.FSUB);
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break;
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default:
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mv.visitInsn(Opcodes.ISUB);
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break;
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}
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}
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private void doVisitAddOpInsn(String typeOfBinary) {
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switch (typeOfBinary) {
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case "java/lang/Byte":
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mv.visitInsn(Opcodes.IADD);
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break;
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case "java/lang/Short":
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mv.visitInsn(Opcodes.IADD);
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break;
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case "java/lang/Integer":
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mv.visitInsn(Opcodes.IADD);
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break;
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case "java/lang/Long":
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mv.visitInsn(Opcodes.LADD);
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break;
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case "java/lang/Double":
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mv.visitInsn(Opcodes.DADD);
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break;
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case "java/lang/Float":
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mv.visitInsn(Opcodes.FADD);
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break;
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default:
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break;
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}
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}
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@Override
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public void visit(LambdaExpression lambdaExpression) {
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this.lamCounter++;
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@ -429,41 +582,45 @@ public class BytecodeGenMethod implements StatementVisitor{
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@Override
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public void visit(Literal literal) {
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Object value = literal.value;
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String typeOfLiteral = resultSet.resolveType(literal.getType()).resolvedType.acceptTV(new TypeToDescriptor());
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if(this.isBinaryExp) {
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getVlaue(typeOfLiteral);
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}else {
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doAssign(typeOfLiteral, value);
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}
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String typeOfLiteral = resultSet.resolveType(
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literal.getType()).resolvedType.acceptTV(new TypeToDescriptor());
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doAssign(typeOfLiteral, value);
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}
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private void getVlaue(String typeOfLiteral) {
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switch (typeOfLiteral) {
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private void getVlaueIns(String type) {
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switch (type) {
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case "java/lang/String":
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(StringBuilder.class),
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"append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
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break;
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case "java/lang/Boolean":
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break;
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case "java/lang/Byte":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Byte", "valueOf",
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"(B)Ljava/lang/Byte;", false);
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Byte", "byteValue",
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"()B", false);
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break;
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case "java/lang/Short":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Short", "valueOf",
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"(S)Ljava/lang/Short;", false);
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Short", "shortValue",
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"()S", false);
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break;
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case "java/lang/Integer":
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Integer", "intValue",
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"()I", false);
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break;
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case "java/lang/Long":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Long", "valueOf",
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"(J)Ljava/lang/Long;", false);
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Long", "longValue",
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"()J", false);
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break;
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case "java/lang/Float":
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Float", "floatValue",
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"()F", false);
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break;
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case "java/lang/Double":
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Double", "doubleValue",
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"()D", false);
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break;
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case "java/lang/Character":
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break;
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@ -482,24 +639,24 @@ public class BytecodeGenMethod implements StatementVisitor{
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break;
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case "java/lang/Byte":
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visitByteLiteral(((Double) value).byteValue(),false);
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Byte", "valueOf",
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"(B)Ljava/lang/Byte;", false);
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if(!this.isBinaryExp)
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getValueOfIns(type);
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break;
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case "java/lang/Short":
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visitShortLiteral(((Double) value).shortValue(),false);
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Short", "valueOf",
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"(S)Ljava/lang/Short;", false);
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if(!this.isBinaryExp)
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getValueOfIns(type);
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break;
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case "java/lang/Integer":
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//zweite Argument isLong
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visitIntegerLiteral(((Double) value).intValue(), false);
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Integer", "valueOf",
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"(I)Ljava/lang/Integer;", false);
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if(!this.isBinaryExp)
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getValueOfIns(type);
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break;
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case "java/lang/Long":
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visitLongLiteral(((Double) value).longValue(), true);
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Long", "valueOf",
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"(J)Ljava/lang/Long;", false);
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if(!this.isBinaryExp)
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getValueOfIns(type);
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break;
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case "java/lang/Float":
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visitFloatLiteral(((Double) value).floatValue());
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@ -515,11 +672,15 @@ public class BytecodeGenMethod implements StatementVisitor{
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}
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}
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private void doAssign(String type) {
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private void getValueOfIns(String type) {
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switch (type) {
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case "java/lang/String":
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mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString",
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"()Ljava/lang/String;", false);
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break;
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case "java/lang/Boolean":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Boolean", "valueOf",
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"(Z)Ljava/lang/Boolean;", false);
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break;
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case "java/lang/Byte":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Byte", "valueOf",
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@ -538,10 +699,16 @@ public class BytecodeGenMethod implements StatementVisitor{
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"(J)Ljava/lang/Long;", false);
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break;
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case "java/lang/Float":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Float", "valueOf",
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"(F)Ljava/lang/Float;", false);
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break;
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case "java/lang/Double":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Double", "valueOf",
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"(D)Ljava/lang/Double;", false);
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break;
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case "java/lang/Character":
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Character", "valueOf",
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"(C)Ljava/lang/Character;", false);
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break;
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default:
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break;
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@ -550,8 +717,8 @@ public class BytecodeGenMethod implements StatementVisitor{
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private void visitCharLiteral(Character value) {
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mv.visitIntInsn(Opcodes.BIPUSH, (int) value);
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Character", "valueOf",
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"(C)Ljava/lang/Character;", false);
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if(!this.isBinaryExp)
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getValueOfIns(Type.getInternalName(Character.class));
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}
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private void visitDoubleLiteral(Double value) {
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@ -562,8 +729,8 @@ public class BytecodeGenMethod implements StatementVisitor{
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}else {
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mv.visitLdcInsn(value);
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}
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Double", "valueOf",
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"(D)Ljava/lang/Double;", false);
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if(!this.isBinaryExp)
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getValueOfIns(Type.getInternalName(Double.class));
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}
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private void visitFloatLiteral(Float value) {
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@ -573,8 +740,8 @@ public class BytecodeGenMethod implements StatementVisitor{
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}else {
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mv.visitLdcInsn(value);
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}
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Float", "valueOf",
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"(F)Ljava/lang/Float;", false);
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if(!this.isBinaryExp)
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getValueOfIns(Type.getInternalName(Float.class));
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}
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private void visitLongLiteral(Long value, boolean isLong) {
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@ -622,6 +789,7 @@ public class BytecodeGenMethod implements StatementVisitor{
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}else {
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mv.visitInsn(Opcodes.ICONST_0);
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}
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// muss noch getestet werden.
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mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Boolean", "valueOf",
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"(Z)Ljava/lang/Boolean;", false);
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}
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@ -1,12 +1,46 @@
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import java.lang.Integer;
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import java.lang.String;
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import java.lang.Long;
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import java.lang.Float;
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import java.lang.Double;
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import java.lang.Boolean;
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class Op {
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m(Integer a, Integer b) {
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Integer c = a+b;
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// d = a-b;
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// e = a*b;
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// f = a/b;
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addInt(Integer a, Integer b) {
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Integer c = a+b;
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return c;
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}
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addString(String a, String b) {
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String c = a+b;
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return c;
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}
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addLong(Long a, Long b) {
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Long c = a+b;
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return c;
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}
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addFloat(Float a, Float b) {
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Float c = a+b;
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return c;
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}
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addDouble(Double a, Double b) {
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Double c = a+b;
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return c;
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}
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subInt(Integer a, Integer b) {
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Integer c = a-b;
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return c;
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}
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subLong(Long a, Long b) {
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Long c = a-b;
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return c;
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}
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subFloat(Float a, Float b) {
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Float c = a-b;
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return c;
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}
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subDouble(Double a, Double b) {
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Double c = a-b;
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return c;
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}
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}
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