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Transform inner/anonymous constructors

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take care of DEBUG_CONSTRS


git-svn-id: https://svn.code.sf.net/p/jode/code/trunk@749 379699f6-c40d-0410-875b-85095c16579e
stable
jochen 26 years ago
parent 4965eaedb1
commit 0d643c08d5
1 changed files with 153 additions and 20 deletions
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  1. 173
      jode/jode/flow/TransformConstructors.java

173
jode/jode/flow/TransformConstructors.java
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@ -18,9 +18,12 @@
*/
package jode.flow;
import jode.GlobalOptions;
import jode.decompiler.Analyzer;
import jode.decompiler.ClassAnalyzer;
import jode.decompiler.MethodAnalyzer;
import jode.expr.*;
import jode.bytecode.ClassInfo;
/**
*
@ -28,9 +31,14 @@ import jode.expr.*;
*/
public class TransformConstructors {
public static boolean isThis(Expression thisExpr, ClassInfo clazz) {
return ((thisExpr instanceof ThisOperator)
&& (((ThisOperator)thisExpr).getClassInfo() == clazz));
}
public static void transform(ClassAnalyzer clazzAnalyzer,
boolean isStatic,
MethodAnalyzer[] cons) {
boolean isStatic, boolean isMember,
boolean isAnonymous, MethodAnalyzer[] cons) {
if (cons.length == 0)
return;
@ -41,7 +49,9 @@ public class TransformConstructors {
if (header == null || !header.hasNoJumps())
return;
sb[i] = cons[i].getMethodHeader().block;
// GlobalOptions.err.println("constr "+i+": "+sb[i]);
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("constr "+i+": "+sb[i]);
if (!isStatic) {
InstructionBlock ib;
if (sb[i] instanceof InstructionBlock)
@ -57,8 +67,9 @@ public class TransformConstructors {
if (!(instr instanceof ComplexExpression)
|| !(instr.getOperator() instanceof InvokeOperator)
|| !(((ComplexExpression)instr)
.getSubExpressions()[0].toString().equals("this")))
|| !isThis(((ComplexExpression)instr)
.getSubExpressions()[0],
clazzAnalyzer.getClazz()))
return;
InvokeOperator invoke = (InvokeOperator) instr.getOperator();
@ -69,7 +80,9 @@ public class TransformConstructors {
/* This constructor calls another constructor, so we
* can skip it.
*/
// GlobalOptions.err.println("skipping this()");
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("skipping this()");
cons[i] = cons[--constrCount];
continue;
}
@ -83,23 +96,125 @@ public class TransformConstructors {
sb[i] = sb[i].getSubBlocks()[1];
else
sb[i] = null;
// GlobalOptions.err.println("normal constructor");
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("normal constructor");
}
i++;
}
StructuredBlock[] start = new StructuredBlock[constrCount];
for (int i=0; i< constrCount; i++)
start[i] = sb[i];
if (isMember || isAnonymous) {
this_loop:
for (;;) {
StructuredBlock ib =
(sb[0] instanceof SequentialBlock)
? sb[0].getSubBlocks()[0]
: sb[0];
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("isMember: "+ib);
if (!(ib instanceof InstructionBlock))
break this_loop;
Expression instr
= ((InstructionBlock) ib).getInstruction().simplify();
if (!(instr instanceof ComplexExpression)
|| !(instr.getOperator() instanceof PutFieldOperator)
|| ((PutFieldOperator)instr.getOperator()).isStatic())
break this_loop;
PutFieldOperator pfo = (PutFieldOperator) instr.getOperator();
if (!pfo.isThis())
break this_loop;
Expression expr = ((ComplexExpression)instr)
.getSubExpressions()[isStatic ? 0 : 1];
if (isMember) {
if (!(expr instanceof ThisOperator))
break this_loop;
} else {
if (!(expr instanceof LocalLoadOperator))
break this_loop;
}
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("field "+pfo.getFieldName()
+ " = " + expr);
if (!isThis(((ComplexExpression)instr)
.getSubExpressions()[0],
clazzAnalyzer.getClazz())) {
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("not this: "+instr);
break this_loop;
}
for (int i=1; i< constrCount; i++) {
ib = (sb[i] instanceof SequentialBlock)
? sb[i].getSubBlocks()[0]
: sb[i];
if (!(ib instanceof InstructionBlock)
|| !(((InstructionBlock)ib).getInstruction().simplify()
.equals(instr))) {
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("constr "+i+" differs: "
+ib);
break this_loop;
}
}
if (!(clazzAnalyzer
.getField(pfo.getFieldName(), pfo.getFieldType())
.setSpecial(expr))) {
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("setField failed");
break this_loop;
}
for (int i=0; i< constrCount; i++) {
if (sb[i] instanceof SequentialBlock)
sb[i] = sb[i].getSubBlocks()[1];
else
sb[i] = null;
}
for (int i=0; i< constrCount; i++) {
if (sb[i] == null) {
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("constr "+i+" is over");
break this_loop;
}
}
}
}
big_loop:
for (;;) {
StructuredBlock ib =
(sb[0] instanceof SequentialBlock)
? sb[0].getSubBlocks()[0]
: sb[0];
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("fieldInit: "+ib);
if (!(ib instanceof InstructionBlock))
break big_loop;
Expression instr = ((InstructionBlock) ib).getInstruction();
Expression instr
= ((InstructionBlock) ib).getInstruction().simplify();
if (!(instr instanceof ComplexExpression)
|| !(instr.getOperator() instanceof PutFieldOperator)
|| (((PutFieldOperator)instr.getOperator()).isStatic()
@ -112,17 +227,25 @@ public class TransformConstructors {
if (!pfo.isThis() || !expr.isConstant()) {
// GlobalOptions.err.println("not constant: "+expr);
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("not constant: "+expr);
break big_loop;
}
// GlobalOptions.err.println("field "+pfo.getFieldName()+ " = "+expr);
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("field "+pfo.getFieldName()+ " = "+expr);
if (!isStatic
&& !(((ComplexExpression)instr).getSubExpressions()[0]
.toString().equals("this"))) {
// GlobalOptions.err.println("not this: "+instr);
break big_loop;
if (!isStatic) {
if (!isThis(((ComplexExpression)instr)
.getSubExpressions()[0],
clazzAnalyzer.getClazz())) {
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("not this: "+instr);
break big_loop;
}
}
for (int i=1; i< constrCount; i++) {
@ -130,8 +253,11 @@ public class TransformConstructors {
? sb[i].getSubBlocks()[0]
: sb[i];
if (!(ib instanceof InstructionBlock)
|| !((InstructionBlock)ib).getInstruction().equals(instr)) {
// GlobalOptions.err.println("constr "+i+" differs: "+ib);
|| !(((InstructionBlock)ib).getInstruction().simplify()
.equals(instr))) {
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("constr "+i+" differs: "+ib);
break big_loop;
}
}
@ -140,7 +266,9 @@ public class TransformConstructors {
if (!(clazzAnalyzer
.getField(pfo.getFieldName(), pfo.getFieldType())
.setInitializer(expr))) {
// GlobalOptions.err.println("setField failed");
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("setField failed");
break big_loop;
}
@ -153,17 +281,22 @@ public class TransformConstructors {
}
for (int i=0; i< constrCount; i++)
if (sb[i] == null) {
// GlobalOptions.err.println("constr "+i+" is over");
if ((GlobalOptions.debuggingFlags
& GlobalOptions.DEBUG_CONSTRS) != 0)
GlobalOptions.err.println("constr "+i+" is over");
break big_loop;
}
}
for (int i=0; i< constrCount; i++) {
if (start[i] == null)
continue;
if (sb[i] == null)
start[i].removeBlock();
else
else {
sb[i].replace(start[i]);
sb[i].simplify();
}
}
}
}

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