@Override
public Xobject cfold(Block block) {
if (Type().isFparameter() && fparam_value != null) {
// I don't know why but fparam_value is always in this form.
if (fparam_value.Nargs() == 2 && fparam_value.getArg(1) == null) {
Xobject value = fparam_value.getArg(0);
return value.cfold(block);
} else {
XmLog.fatal("Ident.cfold: unknown form of fparam_value");
}
}
if (declared_module != null) {
XobjectDefEnv xobjDefEnv = ((FunctionBlock) block).getEnv();
XobjectFile xobjFile = (XobjectFile) xobjDefEnv;
if (xobjFile.findVarIdent(declared_module) == null)
XmLog.fatal("Ident.cfold: not found module name in globalSymbols: " + declared_module);
for (XobjectDef punit : xobjFile.getDefs()) {
if (declared_module.equals(punit.getName())) {
// found the module that declares this ident
Ident ident2 = punit.getDef().findVarIdent(name);
return ident2.cfold(block);
}
}
}
return this.copy();
}
/**
* Fortran: create identifier.
*
* @param name symbol name
* @param t type
* @param isFcommon if is declare as common variable
* @param isDecl 1. copy type if type is function/subroutine which is not external if true. 2. add
* declaration if true.
* @param xobjFile XobjectFile in current context
* @return created identifier
*/
public static Ident Fident(
String name, Xtype t, boolean isFcommon, boolean isDecl, XobjectFile xobjFile) {
Xcode code;
StorageClass sclass;
if (t == null) {
code = null;
sclass = StorageClass.FCOMMON_NAME;
} else {
if (t.isFunction()) {
code = Xcode.FUNC_ADDR;
sclass = StorageClass.FFUNC;
if (!t.isFexternal()) {
if (isDecl) {
if (t.isFsubroutine()) t = Xtype.FexternalSubroutineType.copy();
else if (t.getRef().isBool()) t = Xtype.FexternalLogicalFunctionType.copy();
else if (t.getRef().isIntegral()) t = Xtype.FexternalIntFunctionType.copy();
else {
if (xobjFile == null) throw new IllegalStateException("xobjFile is null");
t = t.copy();
t.setIsFexternal(true);
t.generateId();
xobjFile.addType(t);
}
} else {
t = t.copy();
}
}
} else {
code = Xcode.VAR;
sclass = isFcommon ? StorageClass.FCOMMON : StorageClass.FLOCAL;
}
}
Xobject addr = null;
if (t == null || t.isFunction()) isFcommon = false;
if (code != null) {
addr = Xcons.Symbol(code, t, name);
addr.setIsDelayedDecl(isDecl);
addr.setIsToBeFcommon(isFcommon);
}
Ident id = new Ident(name, sclass, t, addr, VarScope.LOCAL, null);
id.setIsToBeFcommon(isFcommon);
return id;
}