public Expression inlineValue(Environment env, Context ctx) {
// inlineValue() should not end up being called when the index is
// null. If it is null, we let this method fail with a
// NullPointerException.
right = right.inlineValue(env, ctx);
index = index.inlineValue(env, ctx);
return this;
}
/** Inline */
public Expression inline(Environment env, Context ctx) {
// It isn't possible to simply replace an array access
// with a CommaExpression as happens with many binary
// operators, because array accesses may have side effects
// such as NullPointerException or IndexOutOfBoundsException.
right = right.inlineValue(env, ctx);
index = index.inlineValue(env, ctx);
return this;
}
/** Inline */
public Statement inline(Environment env, Context ctx) {
ctx = new Context(ctx, this);
cond = cond.inlineValue(env, ctx);
// The compiler currently needs to perform inlining on both
// branches of the if statement -- even if `cond' is a constant
// true or false. Why? The compiler will later try to compile
// all classes that it has seen; this includes classes that
// appear in dead code. If we don't inline the dead branch here
// then the compiler will never perform inlining on any local
// classes appearing on the dead code. When the compiler tries
// to compile an un-inlined local class with uplevel references,
// it dies. (bug 4059492)
//
// A better solution to this would be to walk the dead branch and
// mark any local classes appearing therein as unneeded. Then the
// compilation phase could skip these classes.
if (ifTrue != null) {
ifTrue = ifTrue.inline(env, ctx);
}
if (ifFalse != null) {
ifFalse = ifFalse.inline(env, ctx);
}
if (cond.equals(true)) {
return eliminate(env, ifTrue);
}
if (cond.equals(false)) {
return eliminate(env, ifFalse);
}
if ((ifTrue == null) && (ifFalse == null)) {
return eliminate(env, new ExpressionStatement(where, cond).inline(env, ctx));
}
if (ifTrue == null) {
cond = new NotExpression(cond.where, cond).inlineValue(env, ctx);
return eliminate(env, new IfStatement(where, cond, ifFalse, null));
}
return this;
}
/** Inline */
public Statement inline(Environment env, Context ctx) {
if (expr != null) {
expr = expr.inlineValue(env, ctx);
}
return this;
}