/*
* object
* : "object" SimpleName? ":" delegationSpecifier{","}? classBody?
* ;
*/
void parseObject(boolean named, boolean optionalBody) {
assert _at(OBJECT_KEYWORD);
advance(); // OBJECT_KEYWORD
if (named) {
PsiBuilder.Marker propertyDeclaration = mark();
if (!parseIdeTemplate()) {
expect(IDENTIFIER, "Expecting object name", TokenSet.create(LBRACE));
}
propertyDeclaration.done(OBJECT_DECLARATION_NAME);
} else {
if (at(IDENTIFIER)) {
error("An object expression cannot bind a name");
}
}
if (optionalBody) {
if (at(COLON)) {
advance(); // COLON
parseDelegationSpecifierList();
}
if (at(LBRACE)) {
parseClassBody();
}
} else {
if (at(LBRACE)) {
parseClassBody();
} else {
expect(COLON, "Expecting ':'", TokenSet.create(IDENTIFIER, PACKAGE_KEYWORD));
parseDelegationSpecifierList();
parseClassBody();
}
}
}
/*
* class
* : modifiers ("class" | "trait") SimpleName
* typeParameters?
* modifiers ("(" primaryConstructorParameter{","} ")")?
* (":" attributes delegationSpecifier{","})?
* typeConstraints
* (classBody? | enumClassBody)
* ;
*/
IElementType parseClass(boolean enumClass) {
assert _atSet(CLASS_KEYWORD, TRAIT_KEYWORD);
advance(); // CLASS_KEYWORD or TRAIT_KEYWORD
if (!parseIdeTemplate()) {
expect(IDENTIFIER, "Class name expected", CLASS_NAME_RECOVERY_SET);
}
boolean typeParametersDeclared = parseTypeParameterList(TYPE_PARAMETER_GT_RECOVERY_SET);
PsiBuilder.Marker beforeConstructorModifiers = mark();
boolean hasConstructorModifiers = parseModifierList(PRIMARY_CONSTRUCTOR_MODIFIER_LIST, false);
// Some modifiers found, but no parentheses following: class has already ended, and we are
// looking at something else
if (hasConstructorModifiers && !atSet(LPAR, LBRACE, COLON)) {
beforeConstructorModifiers.rollbackTo();
return CLASS;
}
// We are still inside a class declaration
beforeConstructorModifiers.drop();
if (at(LPAR)) {
parseValueParameterList(false, TokenSet.create(COLON, LBRACE));
} else if (hasConstructorModifiers) {
// A comprehensive error message for cases like:
// class A private : Foo
// or
// class A private {
error("Expecting primary constructor parameter list");
}
if (at(COLON)) {
advance(); // COLON
parseDelegationSpecifierList();
}
parseTypeConstraintsGuarded(typeParametersDeclared);
if (at(LBRACE)) {
if (enumClass) {
parseEnumClassBody();
} else {
parseClassBody();
}
}
return CLASS;
}
/*
* enumEntry
* : modifiers SimpleName (":" initializer{","})? classBody?
* ;
*/
private void parseEnumEntry() {
assert _at(IDENTIFIER);
PsiBuilder.Marker nameAsDeclaration = mark();
advance(); // IDENTIFIER
nameAsDeclaration.done(OBJECT_DECLARATION_NAME);
if (at(COLON)) {
advance(); // COLON
parseInitializerList();
}
if (at(LBRACE)) {
parseClassBody();
}
consumeIf(SEMICOLON);
}