/**
* Cannot call a function X if it is defined in or imported into a scope with a function X
* already defined
*
* <p>The third parameter indicates whether or not we should check that the definition to check
* is actually imported into the target scope (it may not be if there is a USE statement with a
* Rename or ONLY list).
*/
private void findAllPotentiallyConflictingDefinitionsInScope(
List<Conflict> conflicts,
ScopingNode importingScope,
boolean shouldCheckIfDefinitionImportedIntoScope) {
for (String newName : newNames) {
List<PhotranTokenRef> definitionsLocalToScope = collectLocalDefinitions(importingScope);
if (isProgramOrSubprogramOrModuleScope(importingScope)
&& shouldCheckIfDefinitionImportedIntoScope) {
// Cannot call a variable X inside a function named X
if (importingScope.isNamed(newName)) {
if (definitionToCheck == null
|| definitionsLocalToScope.contains(definitionToCheck.getTokenRef())) {
conflicts.add(new Conflict(newName, importingScope.getNameToken().getTokenRef()));
}
}
// Cannot call a variable X inside a function named Y inside a module named X
else {
ScopingNode parent = importingScope.findNearestAncestor(ScopingNode.class);
if (parent != null && parent.isNamed(newName)) {
List<PhotranTokenRef> definitionsLocalToParent = collectLocalDefinitions(parent);
if (definitionToCheck == null
|| definitionsLocalToParent.contains(definitionToCheck.getTokenRef())) {
conflicts.add(new Conflict(newName, parent.getNameToken().getTokenRef()));
}
}
}
}
// Cannot call a function X if it is defined in or imported into a scope with a function X
// already defined
Token newNameToken =
definitionToCheck == null
? new FakeToken(scopeOfDefinitionToCheck, newName)
: new FakeToken(definitionToCheck.getTokenRef().findToken(), newName);
for (PhotranTokenRef conflict : importingScope.manuallyResolveInLocalScope(newNameToken)) {
if (definitionsLocalToScope.contains(conflict)) {
if (shouldCheckIfDefinitionImportedIntoScope) {
if (definitionToCheck == null
|| definitionsLocalToScope.contains(definitionToCheck.getTokenRef())) {
conflicts.add(new Conflict(newName, conflict));
}
} else {
conflicts.add(new Conflict(newName, conflict));
}
}
}
}
}
/**
* Check whether the new definition will either conflict with or shadow an existing definition
*/
private List<PhotranTokenRef> findReferencesToShadowedDefinitions() {
List<PhotranTokenRef> referencesToShadowedDefinitions = new LinkedList<PhotranTokenRef>();
for (String newName : newNames) {
Token token =
definitionToCheck == null
? new FakeToken(scopeOfDefinitionToCheck, newName)
: new FakeToken(definitionToCheck.getTokenRef().findToken(), newName);
List<PhotranTokenRef> shadowedDefinitions = scopeOfDefinitionToCheck.manuallyResolve(token);
// TODO: Does not consider rename or only lists (need to tell if this SPECIFIC definition
// will be imported)
for (ScopingNode importingScope : scopeOfDefinitionToCheck.findImportingScopes()) {
pm.subTask(
Messages.bind(
Messages.FortranResourceRefactoring_CheckingForReferencesTo,
newName,
importingScope.describe()));
shadowedDefinitions.addAll(importingScope.manuallyResolve(token));
}
for (PhotranTokenRef def : shadowedDefinitions) {
Definition definition = PhotranVPG.getInstance().getDefinitionFor(def);
if (definition != null)
referencesToShadowedDefinitions.addAll(definition.findAllReferences(false));
}
}
return referencesToShadowedDefinitions;
}
public CheckForConflictBindings(
Definition definitionToCheck,
Collection<PhotranTokenRef> allReferences,
Collection<String> newNames) {
this.definitionToCheck = definitionToCheck;
this.scopeOfDefinitionToCheck =
definitionToCheck.getTokenRef().findToken().getEnclosingScope();
this.allReferences = allReferences;
this.newNames = newNames;
}
private void permuteSubroutineInInterfaceBlocks() {
for (Definition declaration : getInterfaceDeclarations()) {
ASTSubroutineStmtNode subroutineStmt =
declaration.getTokenRef().findToken().findNearestAncestor(ASTSubroutineStmtNode.class);
if (subroutineStmt != null
&& subroutineStmt.getSubroutinePars() != null
&& subroutineStmt.getSubroutinePars().size() == newParameterList.size())
permuteDummyArguments(subroutineStmt);
}
}
private List<Conflict> findAllPotentiallyConflictingDefinitions() {
List<Conflict> conflicts = new ArrayList<Conflict>();
if (definitionToCheck != null) {
// Cannot call a main program (or function, etc.) X if it has an internal subprogram named
// X,
// even if that subprogram is never used (in which case it wouldn't be caught below)
if (definitionToCheck.isMainProgram()
|| definitionToCheck.isSubprogram()
|| definitionToCheck.isModule()) {
findAllPotentiallyConflictingDefinitionsInScope(
conflicts,
definitionToCheck.getTokenRef().findToken().findNearestAncestor(ScopingNode.class),
false);
}
for (String newName : newNames) {
if (definitionToCheck.isInternalSubprogramDefinition()
&& scopeContainingInternalSubprogram().isNamed(newName)) {
conflicts.add(
new Conflict(
newName, scopeContainingInternalSubprogram().getNameToken().getTokenRef()));
}
}
}
for (ScopingNode importingScope :
scopeItselfAndAllScopesThatImport(scopeOfDefinitionToCheck)) {
pm.subTask(
Messages.bind(
Messages.FortranResourceRefactoring_CheckingForConflictingDefinitionsIn,
importingScope.describe()));
findAllPotentiallyConflictingDefinitionsInScope(conflicts, importingScope, true);
}
return conflicts;
}
private ScopingNode scopeContainingInternalSubprogram() {
return definitionToCheck.getTokenRef().findToken().getEnclosingScope();
}
private List<PhotranTokenRef> collectLocalDefinitions(ScopingNode importingScope) {
List<PhotranTokenRef> definitionsLocalToScope = new ArrayList<PhotranTokenRef>();
for (Definition def : importingScope.getAllDefinitions())
if (def != null && !def.isIntrinsic()) definitionsLocalToScope.add(def.getTokenRef());
return definitionsLocalToScope;
}