@NotNull
public static Modality resolveModalityFromModifiers(
@Nullable JetModifierList modifierList, @NotNull Modality defaultModality) {
if (modifierList == null) return defaultModality;
boolean hasAbstractModifier = modifierList.hasModifier(ABSTRACT_KEYWORD);
boolean hasOverrideModifier = modifierList.hasModifier(OVERRIDE_KEYWORD);
if (modifierList.hasModifier(SEALED_KEYWORD)) {
return Modality.SEALED;
}
if (modifierList.hasModifier(OPEN_KEYWORD)) {
if (hasAbstractModifier || defaultModality == Modality.ABSTRACT) {
return Modality.ABSTRACT;
}
return Modality.OPEN;
}
if (hasAbstractModifier) {
return Modality.ABSTRACT;
}
boolean hasFinalModifier = modifierList.hasModifier(FINAL_KEYWORD);
if (hasOverrideModifier && !hasFinalModifier && !(defaultModality == Modality.ABSTRACT)) {
return Modality.OPEN;
}
if (hasFinalModifier) {
return Modality.FINAL;
}
return defaultModality;
}
public static Visibility resolveVisibilityFromModifiers(
@Nullable JetModifierList modifierList, @NotNull Visibility defaultVisibility) {
if (modifierList == null) return defaultVisibility;
if (modifierList.hasModifier(PRIVATE_KEYWORD)) return Visibilities.PRIVATE;
if (modifierList.hasModifier(PUBLIC_KEYWORD)) return Visibilities.PUBLIC;
if (modifierList.hasModifier(PROTECTED_KEYWORD)) return Visibilities.PROTECTED;
if (modifierList.hasModifier(INTERNAL_KEYWORD)) return Visibilities.INTERNAL;
return defaultVisibility;
}
private void checkTraitModifiers(JetClass aClass) {
reportErrorIfHasIllegalModifier(aClass);
JetModifierList modifierList = aClass.getModifierList();
if (modifierList == null) return;
if (modifierList.hasModifier(JetTokens.FINAL_KEYWORD)) {
trace.report(Errors.TRAIT_CAN_NOT_BE_FINAL.on(aClass));
}
if (modifierList.hasModifier(JetTokens.SEALED_KEYWORD)) {
trace.report(Errors.TRAIT_CAN_NOT_BE_SEALED.on(aClass));
}
if (modifierList.hasModifier(JetTokens.ABSTRACT_KEYWORD)) {
trace.report(Errors.ABSTRACT_MODIFIER_IN_TRAIT.on(aClass));
}
if (modifierList.hasModifier(JetTokens.OPEN_KEYWORD)) {
trace.report(Errors.OPEN_MODIFIER_IN_TRAIT.on(aClass));
}
}
@NotNull
public Map<JetModifierKeywordToken, PsiElement> getTokensCorrespondingToModifiers(
@NotNull JetModifierList modifierList,
@NotNull Collection<JetModifierKeywordToken> possibleModifiers) {
Map<JetModifierKeywordToken, PsiElement> tokens = Maps.newHashMap();
for (JetModifierKeywordToken modifier : possibleModifiers) {
if (modifierList.hasModifier(modifier)) {
tokens.put(modifier, modifierList.getModifier(modifier));
}
}
return tokens;
}
public static boolean isInnerClass(@Nullable JetModifierList modifierList) {
return modifierList != null && modifierList.hasModifier(INNER_KEYWORD);
}