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javassist.compiler

public abstract Class CodeGen

extends Visitor
implements Opcode, TokenId
Class Inheritance
All Implemented Interfaces
javassist.compiler.TokenId, javassist.bytecode.Opcode
Known Direct Subclasses
javassist.compiler.MemberCodeGen
Imports
java.util.ArrayList, .Arrays, .List, javassist.bytecode.Bytecode, .Opcode, javassist.compiler.ast.ASTList, .ASTree, .ArrayInit, .AssignExpr, .BinExpr, .CallExpr, .CastExpr, .CondExpr, .Declarator, .DoubleConst, .Expr, .FieldDecl, .InstanceOfExpr, .IntConst, .Keyword, .Member, .MethodDecl, .NewExpr, .Pair, .Stmnt, .StringL, .Symbol, .Variable, .Visitor

Nested and Inner Type Summary

Modifier and TypeClass and Description
protected abstract static class
CodeGen.ReturnHook

doit() in ReturnHook is called from atReturn().

Field Summary

Modifier and TypeField and Description
protected int
arrayDim

pack-priv static final int[]
binOp

protected List<Integer>
breakList

protected Bytecode
bytecode

private static final int[]
castOp

protected String
className

protected List<Integer>
continueList

protected int
exprType

protected boolean
hasReturned

true if the last visited node is a return statement.

private static final int[]
ifOp

private static final int[]
ifOp2

public boolean
inStaticMethod

Must be true if compilation is for a static method.

pack-priv static final String
javaLangObject

pack-priv static final String
javaLangString

pack-priv static final String
jvmJavaLangObject

pack-priv static final String
jvmJavaLangString

private static final int
P_DOUBLE

private static final int
P_FLOAT

private static final int
P_INT

private static final int
P_LONG

private static final int
P_OTHER

protected CodeGen.ReturnHook
returnHooks

private int
tempVar

pack-priv TypeChecker
typeChecker

Constructor Summary

AccessConstructor and Description
public
CodeGen(Bytecode b)

Method Summary

Modifier and TypeMethod and Description
protected void
arrayAccess(ASTree array, ASTree index)

private void
atArithBinExpr(Expr expr, int token, int index, int type1)

private void
atArrayAssign(Expr expr, int op, Expr array, ASTree right, boolean doDup)

public abstract void
atArrayInit(ArrayInit init)

Overrides javassist.compiler.ast.Visitor.atArrayInit.

public void
atArrayPlusPlus(int token, boolean isPost, Expr expr, boolean doDup)

public void
atArrayRead(ASTree array, ASTree index)

protected abstract void
atArrayVariableAssign(ArrayInit init, int varType, int varArray, String varClass)

protected void
atAssignCore(Expr expr, int op, ASTree right, int type, int dim, String cname)

public void
atAssignExpr(AssignExpr expr)

Overrides javassist.compiler.ast.Visitor.atAssignExpr.

protected void
atAssignExpr(AssignExpr expr, boolean doDup)

public void
atASTList(ASTList n)

Overrides javassist.compiler.ast.Visitor.atASTList.

public void
atBinExpr(BinExpr expr)

Overrides javassist.compiler.ast.Visitor.atBinExpr.

private void
atBreakStmnt(Stmnt st, boolean notCont)

public abstract void
atCallExpr(CallExpr expr)

Overrides javassist.compiler.ast.Visitor.atCallExpr.

public void
atCastExpr(CastExpr expr)

Overrides javassist.compiler.ast.Visitor.atCastExpr.

public void
atClassObject(Expr expr)

protected void
atClassObject2(String cname)

public void
atCondExpr(CondExpr expr)

Overrides javassist.compiler.ast.Visitor.atCondExpr.

public void
atDeclarator(Declarator d)

Overrides javassist.compiler.ast.Visitor.atDeclarator.

public void
atDoubleConst(DoubleConst d)

Overrides javassist.compiler.ast.Visitor.atDoubleConst.

public void
atExpr(Expr expr)

Overrides javassist.compiler.ast.Visitor.atExpr.

protected abstract void
atFieldAssign(Expr expr, int op, ASTree left, ASTree right, boolean doDup)

public void
atFieldDecl(FieldDecl field)

Overrides javassist.compiler.ast.Visitor.atFieldDecl.

protected abstract void
atFieldPlusPlus(int token, boolean isPost, ASTree oprand, Expr expr, boolean doDup)

protected abstract void
atFieldRead(ASTree expr)

private void
atForStmnt(Stmnt st)

private void
atIfStmnt(Stmnt st)

public void
atInstanceOfExpr(InstanceOfExpr expr)

Overrides javassist.compiler.ast.Visitor.atInstanceOfExpr.

public void
atIntConst(IntConst i)

Overrides javassist.compiler.ast.Visitor.atIntConst.

public void
atKeyword(Keyword k)

Overrides javassist.compiler.ast.Visitor.atKeyword.

public abstract void
atMember(Member n)

Overrides javassist.compiler.ast.Visitor.atMember.

public void
atMethodBody(Stmnt s, boolean
true if super() must be called. false if the method is a class initializer.
isCons, boolean isVoid)

public void
atMethodDecl(MethodDecl method)

Overrides javassist.compiler.ast.Visitor.atMethodDecl.

public abstract void
atNewExpr(NewExpr n)

Overrides javassist.compiler.ast.Visitor.atNewExpr.

pack-priv void
atNumCastExpr(int srcType, int destType)

public void
atPair(Pair n)

Overrides javassist.compiler.ast.Visitor.atPair.

private void
atPlusPlus(int token, ASTree oprand, Expr expr, boolean doDup)

protected void
atPlusPlusCore(int dup_code, boolean doDup, int token, boolean isPost, Expr expr)

protected void
atReturnStmnt(Stmnt st)

protected final void
atReturnStmnt2(ASTree result)

public void
atStmnt(Stmnt st)

Overrides javassist.compiler.ast.Visitor.atStmnt.

private void
atStringConcatExpr(Expr expr, int type1, int dim1, String cname1)

public void
atStringL(StringL s)

Overrides javassist.compiler.ast.Visitor.atStringL.

private void
atStringPlusEq(Expr expr, int type, int dim, String cname, ASTree right)

private void
atSwitchStmnt(Stmnt st)

public void
atSymbol(Symbol n)

Overrides javassist.compiler.ast.Visitor.atSymbol.

private void
atSyncStmnt(Stmnt st)

private void
atThrowStmnt(Stmnt st)

protected void
atTryStmnt(Stmnt st)

public void
atVariable(Variable v)

Overrides javassist.compiler.ast.Visitor.atVariable.

private void
atVariableAssign(Expr expr, int op, Variable var, Declarator d, ASTree right, boolean doDup)

private void
atWhileStmnt(Stmnt st, boolean notDo)

protected static void
badAssign(Expr expr)

protected static void
badType(Expr expr)

protected static void
badTypes(Expr expr)

private boolean
booleanExpr(boolean branchIf, ASTree expr)

private String
checkCastExpr(CastExpr expr, String name)

private void
compareExpr(boolean branchIf, int token, int type1, BinExpr expr)

public boolean
compileBooleanExpr(boolean branchIf, ASTree expr)

public void
compileExpr(ASTree expr)

private int
compileOprands(BinExpr expr)

private int
computeLabel(ASTree expr)

private int
computeStringLabel(ASTree expr, int tmpVar, List<Integer> gotoDefaults)

private void
convertOprandTypes(int type1, int type2, Expr expr)

private void
convToString(int type, int dim)

public void
doTypeCheck(ASTree expr)

protected static void
fatal()

protected static int
getArrayReadOp(int type, int dim)

protected static int
getArrayWriteOp(int type, int dim)

pack-priv static int
getCompOperator(ASTree expr)

private static int
getListSize(List<Integer> list)

protected int
getLocalVar(Declarator d)

public int
getMaxLocals()

protected abstract String
getSuperName()

Returns the JVM-internal representation of this super class name.

protected int
getTempVar()

Returns a local variable that single or double words can be stored in.

protected abstract String
getThisName()

Returns the JVM-internal representation of this class name.

protected void
incMaxLocals(int size)

protected abstract void
insertDefaultSuperCall()

private boolean
invalidDim(int srcType, int srcDim, String srcClass, int destType, int destDim, String destClass, boolean isCast)

public static boolean
is2word(int type, int dim)

private static boolean
isAlwaysBranch(ASTree expr, boolean branchIf)

pack-priv static boolean
isP_INT(int type)

private static boolean
isPlusPlusExpr(ASTree expr)

protected static boolean
isRefType(int type)

pack-priv static int
lookupBinOp(int token)

private boolean
needsSuperCall(Stmnt body)

protected void
patchGoto(List<Integer> list, int targetPc)

protected abstract String
resolveClassName(ASTList name)

protected abstract String
resolveClassName(String jvmClassName)

pack-priv static boolean
rightIsStrong(int type1, int type2)

public void
setMaxLocals(int n)

public void
setTypeChecker(TypeChecker checker)

protected static String
toJvmArrayName(String
the JVM-internal representation. name is not exapnded to java.lang.*.
name, int dim)

protected static String
toJvmTypeName(int type, int dim)

private static int
typePrecedence(int type)