public void atVariable(Variable v) throws CompileError {
Declarator d = v.getDeclarator();
exprType = d.getType();
arrayDim = d.getArrayDim();
className = d.getClassName();
int var = getLocalVar(d);
if (arrayDim > 0) bytecode.addAload(var);
else
switch (exprType) {
case CLASS:
bytecode.addAload(var);
break;
case LONG:
bytecode.addLload(var);
break;
case FLOAT:
bytecode.addFload(var);
break;
case DOUBLE:
bytecode.addDload(var);
break;
default: // BOOLEAN, BYTE, CHAR, SHORT, INT
bytecode.addIload(var);
break;
}
}
private void atPlusPlus(int token, ASTree oprand, Expr expr, boolean doDup) throws CompileError {
boolean isPost = oprand == null; // ++i or i++?
if (isPost) oprand = expr.oprand2();
if (oprand instanceof Variable) {
Declarator d = ((Variable) oprand).getDeclarator();
int t = exprType = d.getType();
arrayDim = d.getArrayDim();
int var = getLocalVar(d);
if (arrayDim > 0) badType(expr);
if (t == DOUBLE) {
bytecode.addDload(var);
if (doDup && isPost) bytecode.addOpcode(DUP2);
bytecode.addDconst(1.0);
bytecode.addOpcode(token == PLUSPLUS ? DADD : DSUB);
if (doDup && !isPost) bytecode.addOpcode(DUP2);
bytecode.addDstore(var);
} else if (t == LONG) {
bytecode.addLload(var);
if (doDup && isPost) bytecode.addOpcode(DUP2);
bytecode.addLconst((long) 1);
bytecode.addOpcode(token == PLUSPLUS ? LADD : LSUB);
if (doDup && !isPost) bytecode.addOpcode(DUP2);
bytecode.addLstore(var);
} else if (t == FLOAT) {
bytecode.addFload(var);
if (doDup && isPost) bytecode.addOpcode(DUP);
bytecode.addFconst(1.0f);
bytecode.addOpcode(token == PLUSPLUS ? FADD : FSUB);
if (doDup && !isPost) bytecode.addOpcode(DUP);
bytecode.addFstore(var);
} else if (t == BYTE || t == CHAR || t == SHORT || t == INT) {
if (doDup && isPost) bytecode.addIload(var);
int delta = token == PLUSPLUS ? 1 : -1;
if (var > 0xff) {
bytecode.addOpcode(WIDE);
bytecode.addOpcode(IINC);
bytecode.addIndex(var);
bytecode.addIndex(delta);
} else {
bytecode.addOpcode(IINC);
bytecode.add(var);
bytecode.add(delta);
}
if (doDup && !isPost) bytecode.addIload(var);
} else badType(expr);
} else {
if (oprand instanceof Expr) {
Expr e = (Expr) oprand;
if (e.getOperator() == ARRAY) {
atArrayPlusPlus(token, isPost, e, doDup);
return;
}
}
atFieldPlusPlus(token, isPost, oprand, expr, doDup);
}
}
