/** Code */
void codeBranch(Environment env, Context ctx, Assembler asm, Label lbl, boolean whenTrue) {
left.codeValue(env, ctx, asm);
switch (left.type.getTypeCode()) {
case TC_INT:
if (!right.equals(0)) {
right.codeValue(env, ctx, asm);
asm.add(where, whenTrue ? opc_if_icmpgt : opc_if_icmple, lbl, whenTrue);
return;
}
break;
case TC_LONG:
right.codeValue(env, ctx, asm);
asm.add(where, opc_lcmp);
break;
case TC_FLOAT:
right.codeValue(env, ctx, asm);
asm.add(where, opc_fcmpl);
break;
case TC_DOUBLE:
right.codeValue(env, ctx, asm);
asm.add(where, opc_dcmpl);
break;
default:
throw new CompilerError("Unexpected Type");
}
asm.add(where, whenTrue ? opc_ifgt : opc_ifle, lbl, whenTrue);
}
/** Code */
public void codeValue(Environment env, Context ctx, Assembler asm) {
right.codeValue(env, ctx, asm);
if (type.isType(TC_INT)) {
asm.add(where, opc_ldc, -1);
asm.add(where, opc_ixor);
} else {
asm.add(where, opc_ldc2_w, -1L);
asm.add(where, opc_lxor);
}
}
/** Code */
public void code(Environment env, Context ctx, Assembler asm) {
if (expr == null) {
codeFinally(env, ctx, asm, null, null);
asm.add(where, opc_return);
} else {
expr.codeValue(env, ctx, asm);
codeFinally(env, ctx, asm, null, expr.type);
asm.add(where, opc_ireturn + expr.type.getTypeCodeOffset());
}
}
/** Code */
public void code(Environment env, Context ctx, Assembler asm) {
CodeContext newctx = new CodeContext(ctx, this);
Label l1 = new Label();
cond.codeBranch(env, newctx, asm, l1, false);
ifTrue.code(env, newctx, asm);
if (ifFalse != null) {
Label l2 = new Label();
asm.add(true, where, opc_goto, l2);
asm.add(l1);
ifFalse.code(env, newctx, asm);
asm.add(l2);
} else {
asm.add(l1);
}
asm.add(newctx.breakLabel);
}
/** Code */
public void codeValue(Environment env, Context ctx, Assembler asm) {
asm.add(where, opc_aconst_null);
}
