protected override void ParseClassMember(
TokenStream tokens,
FileScope fileScope,
ClassDefinition classDef,
IList <FunctionDefinition> methodsOut,
IList <FieldDefinition> fieldsOut,
IList <PropertyDefinition> propertiesOutIgnored)
{
AnnotationCollection annotations = this.parser.AnnotationParser.ParseAnnotations(tokens);
ModifierCollection modifiers = ModifierCollection.Parse(tokens);
if (tokens.IsNext(this.parser.Keywords.FUNCTION))
{
methodsOut.Add(this.ParseFunction(tokens, classDef, fileScope, modifiers, annotations));
}
else if (tokens.IsNext(this.parser.Keywords.CONSTRUCTOR))
{
if (modifiers.HasStatic)
{
if (classDef.StaticConstructor != null)
{
throw new ParserException(tokens.Pop(), "Multiple static constructors are not allowed.");
}
classDef.StaticConstructor = this.ParseConstructor(tokens, classDef, modifiers, annotations);
}
else
{
if (classDef.Constructor != null)
{
throw this.parser.GenerateParseError(
ErrorMessages.CLASS_CANNOT_HAVE_MULTIPLE_CONSTRUCTORS,
tokens.Pop());
}
classDef.Constructor = this.ParseConstructor(tokens, classDef, modifiers, annotations);
}
}
else if (tokens.IsNext(this.parser.Keywords.FIELD))
{
fieldsOut.Add(this.ParseField(tokens, classDef, modifiers, annotations));
}
else if (tokens.IsNext(this.parser.Keywords.CLASS))
{
throw new ParserException(tokens.Pop(), "Nested classes are not currently supported.");
}
else
{
tokens.PopExpected("}");
}
TODO.CheckForUnusedAnnotations();
}
internal virtual TopLevelEntity Parse(
TokenStream tokens,
TopLevelEntity owner,
FileScope fileScope)
{
AnnotationCollection annotations = this.parser.AnnotationParser.ParseAnnotations(tokens);
ModifierCollection modifiers = ModifierCollection.Parse(tokens);
string value = tokens.PeekValue();
if (value == this.parser.Keywords.IMPORT)
{
throw this.parser.GenerateParseError(
ErrorMessages.ALL_IMPORTS_MUST_OCCUR_AT_BEGINNING_OF_FILE,
tokens.Pop());
}
// The returns are inline, so you'll have to refactor or put the check inside each parse call.
// Or maybe a try/finally.
TODO.CheckForUnusedAnnotations();
if (value == this.parser.Keywords.NAMESPACE)
{
return(this.ParseNamespace(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CONST)
{
return(this.ParseConst(tokens, owner, fileScope, modifiers, annotations));
}
if (value == this.parser.Keywords.FUNCTION)
{
return(this.ParseFunction(tokens, owner, fileScope, modifiers, annotations));
}
if (value == this.parser.Keywords.CLASS)
{
return(this.ParseClassDefinition(tokens, owner, fileScope, modifiers, annotations));
}
if (value == this.parser.Keywords.ENUM)
{
return(this.ParseEnumDefinition(tokens, owner, fileScope, modifiers, annotations));
}
if (value == this.parser.Keywords.CONSTRUCTOR && owner is ClassDefinition)
{
return(this.ParseConstructor(tokens, (ClassDefinition)owner, modifiers, annotations));
}
FunctionDefinition nullableFunctionDef = this.MaybeParseFunctionDefinition(tokens, owner, fileScope, annotations, modifiers);
if (nullableFunctionDef != null)
{
return(nullableFunctionDef);
}
Token token = tokens.Peek();
throw ParserException.ThrowException(
this.parser.CurrentLocale,
ErrorMessages.UNEXPECTED_TOKEN_NO_SPECIFIC_EXPECTATIONS,
token,
token.Value);
}
private ClassDefinition ParseClassDefinition(TokenStream tokens, TopLevelConstruct owner, Token staticToken, Token finalToken, FileScope fileScope, AnnotationCollection classAnnotations)
{
Token classToken = tokens.PopExpected(this.parser.Keywords.CLASS);
Token classNameToken = tokens.Pop();
this.parser.VerifyIdentifier(classNameToken);
List <Token> baseClassTokens = new List <Token>();
List <string> baseClassStrings = new List <string>();
if (tokens.PopIfPresent(":"))
{
if (baseClassTokens.Count > 0)
{
tokens.PopExpected(",");
}
Token baseClassToken = tokens.Pop();
string baseClassName = baseClassToken.Value;
this.parser.VerifyIdentifier(baseClassToken);
while (tokens.PopIfPresent("."))
{
Token baseClassTokenNext = tokens.Pop();
this.parser.VerifyIdentifier(baseClassTokenNext);
baseClassName += "." + baseClassTokenNext.Value;
}
baseClassTokens.Add(baseClassToken);
baseClassStrings.Add(baseClassName);
}
ClassDefinition cd = new ClassDefinition(
classToken,
classNameToken,
baseClassTokens,
baseClassStrings,
owner,
parser.CurrentLibrary,
staticToken,
finalToken,
fileScope,
classAnnotations);
tokens.PopExpected("{");
List <FunctionDefinition> methods = new List <FunctionDefinition>();
List <FieldDeclaration> fields = new List <FieldDeclaration>();
ConstructorDefinition constructorDef = null;
ConstructorDefinition staticConstructorDef = null;
while (!tokens.PopIfPresent("}"))
{
AnnotationCollection annotations = this.parser.AnnotationParser.ParseAnnotations(tokens);
if (tokens.IsNext(this.parser.Keywords.FUNCTION) ||
tokens.AreNext(this.parser.Keywords.STATIC, this.parser.Keywords.FUNCTION))
{
methods.Add(this.parser.ExecutableParser.ParseFunction(tokens, cd, fileScope, annotations));
}
else if (tokens.IsNext(this.parser.Keywords.CONSTRUCTOR))
{
if (constructorDef != null)
{
throw this.parser.GenerateParseError(
ErrorMessages.CLASS_CANNOT_HAVE_MULTIPLE_CONSTRUCTORS,
tokens.Pop());
}
constructorDef = this.parser.ExecutableParser.ParseConstructor(tokens, cd, annotations);
}
else if (tokens.AreNext(this.parser.Keywords.STATIC, this.parser.Keywords.CONSTRUCTOR))
{
tokens.Pop(); // static token
if (staticConstructorDef != null)
{
throw new ParserException(tokens.Pop(), "Multiple static constructors are not allowed.");
}
staticConstructorDef = this.parser.ExecutableParser.ParseConstructor(tokens, cd, annotations);
}
else if (tokens.IsNext(this.parser.Keywords.FIELD) ||
tokens.AreNext(this.parser.Keywords.STATIC, this.parser.Keywords.FIELD))
{
fields.Add(this.parser.ExecutableParser.ParseField(tokens, cd, annotations));
}
else
{
tokens.PopExpected("}");
}
TODO.CheckForUnusedAnnotations();
}
cd.Methods = methods.ToArray();
cd.Constructor = constructorDef;
cd.StaticConstructor = staticConstructorDef;
cd.Fields = fields.ToArray();
return(cd);
}
public TopLevelConstruct ParseTopLevel(
TokenStream tokens,
TopLevelConstruct owner,
FileScope fileScope)
{
AnnotationCollection annotations = annotations = this.parser.AnnotationParser.ParseAnnotations(tokens);
string value = tokens.PeekValue();
// The returns are inline, so you'll have to refactor or put the check inside each parse call.
// Or maybe a try/finally.
TODO.CheckForUnusedAnnotations();
Token staticToken = null;
Token finalToken = null;
while (value == this.parser.Keywords.STATIC || value == this.parser.Keywords.FINAL)
{
if (value == this.parser.Keywords.STATIC && staticToken == null)
{
staticToken = tokens.Pop();
value = tokens.PeekValue();
}
if (value == this.parser.Keywords.FINAL && finalToken == null)
{
finalToken = tokens.Pop();
value = tokens.PeekValue();
}
}
if (staticToken != null || finalToken != null)
{
if (value != this.parser.Keywords.CLASS)
{
if (staticToken != null)
{
throw ParserException.ThrowException(this.parser.CurrentLocale, ErrorMessages.ONLY_CLASSES_METHODS_FIELDS_MAY_BE_STATIC, staticToken);
}
else
{
throw ParserException.ThrowException(this.parser.CurrentLocale, ErrorMessages.ONLY_CLASSES_MAY_BE_FINAL, finalToken);
}
}
if (staticToken != null && finalToken != null)
{
throw ParserException.ThrowException(this.parser.CurrentLocale, ErrorMessages.CLASSES_CANNOT_BE_STATIC_AND_FINAL_SIMULTANEOUSLY, staticToken);
}
}
if (value == parser.Keywords.IMPORT)
{
Token importToken = tokens.PopExpected(parser.Keywords.IMPORT);
List <string> importPathBuilder = new List <string>();
while (!tokens.PopIfPresent(";"))
{
if (importPathBuilder.Count > 0)
{
tokens.PopExpected(".");
}
Token pathToken = tokens.Pop();
parser.VerifyIdentifier(pathToken);
importPathBuilder.Add(pathToken.Value);
}
string importPath = string.Join(".", importPathBuilder);
return(new ImportStatement(importToken, importPath, parser.CurrentLibrary, fileScope));
}
if (value == this.parser.Keywords.NAMESPACE)
{
return(this.ParseNamespace(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CONST)
{
return(this.ParseConst(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.FUNCTION)
{
return(this.ParseFunction(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CLASS)
{
return(this.ParseClassDefinition(tokens, owner, staticToken, finalToken, fileScope, annotations));
}
if (value == this.parser.Keywords.ENUM)
{
return(this.ParseEnumDefinition(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CONSTRUCTOR)
{
return(this.ParseConstructor(tokens, owner, annotations));
}
Token token = tokens.Peek();
throw ParserException.ThrowException(
this.parser.CurrentLocale,
ErrorMessages.UNEXPECTED_TOKEN_NO_SPECIFIC_EXPECTATIONS,
token,
token.Value);
}
public TopLevelConstruct ParseTopLevel(
TokenStream tokens,
TopLevelConstruct owner,
FileScope fileScope)
{
AnnotationCollection annotations = annotations = this.parser.AnnotationParser.ParseAnnotations(tokens);
string value = tokens.PeekValue();
// The returns are inline, so you'll have to refactor or put the check inside each parse call.
// Or maybe a try/finally.
TODO.CheckForUnusedAnnotations();
Token staticToken = null;
Token finalToken = null;
while (value == this.parser.Keywords.STATIC || value == this.parser.Keywords.FINAL)
{
if (value == this.parser.Keywords.STATIC && staticToken == null)
{
staticToken = tokens.Pop();
value = tokens.PeekValue();
}
if (value == this.parser.Keywords.FINAL && finalToken == null)
{
finalToken = tokens.Pop();
value = tokens.PeekValue();
}
}
if (staticToken != null || finalToken != null)
{
if (value != this.parser.Keywords.CLASS)
{
if (staticToken != null)
{
throw new ParserException(staticToken, "Only classes, methods, and fields may be marked as static");
}
else
{
throw new ParserException(finalToken, "Only classes may be marked as final.");
}
}
if (staticToken != null && finalToken != null)
{
throw new ParserException(staticToken, "Classes cannot be both static and final.");
}
}
if (value == parser.Keywords.IMPORT)
{
Token importToken = tokens.PopExpected(parser.Keywords.IMPORT);
List <string> importPathBuilder = new List <string>();
while (!tokens.PopIfPresent(";"))
{
if (importPathBuilder.Count > 0)
{
tokens.PopExpected(".");
}
Token pathToken = tokens.Pop();
parser.VerifyIdentifier(pathToken);
importPathBuilder.Add(pathToken.Value);
}
string importPath = string.Join(".", importPathBuilder);
return(new ImportStatement(importToken, importPath, parser.CurrentLibrary, fileScope));
}
if (value == this.parser.Keywords.NAMESPACE)
{
return(this.ParseNamespace(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CONST)
{
return(this.ParseConst(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.FUNCTION)
{
return(this.ParseFunction(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CLASS)
{
return(this.ParseClassDefinition(tokens, owner, staticToken, finalToken, fileScope, annotations));
}
if (value == this.parser.Keywords.ENUM)
{
return(this.ParseEnumDefinition(tokens, owner, fileScope, annotations));
}
if (value == this.parser.Keywords.CONSTRUCTOR)
{
return(this.ParseConstructor(tokens, owner, annotations));
}
throw new ParserException(tokens.Peek(), "Unrecognized token.");
}
protected override void ParseClassMember(
TokenStream tokens,
FileScope fileScope,
ClassDefinition classDef,
IList <FunctionDefinition> methodsOut,
IList <FieldDefinition> fieldsOut,
IList <PropertyDefinition> propertiesOut)
{
AnnotationCollection annotations = this.parser.AnnotationParser.ParseAnnotations(tokens);
ModifierCollection modifiers = ModifierCollection.Parse(tokens);
if (tokens.IsNext(this.parser.Keywords.CONSTRUCTOR))
{
if (modifiers.HasStatic)
{
if (classDef.StaticConstructor != null)
{
throw new ParserException(tokens.Pop(), "Multiple static constructors are not allowed.");
}
classDef.StaticConstructor = this.ParseConstructor(tokens, classDef, modifiers, annotations);
}
else
{
if (classDef.Constructor != null)
{
throw this.parser.GenerateParseError(
ErrorMessages.CLASS_CANNOT_HAVE_MULTIPLE_CONSTRUCTORS,
tokens.Pop());
}
classDef.Constructor = this.ParseConstructor(tokens, classDef, modifiers, annotations);
}
}
else if (tokens.IsNext(this.parser.Keywords.CLASS))
{
throw new ParserException(tokens.Pop(), "Nested classes are not currently supported.");
}
else
{
// Parsing the type and then throwing it away is a little wasteful, but feels less weird than parsing
// the type here and passing it into ParseFunction()/ParseField(). ParseX() should ParseX from the start.
TokenStream.StreamState fieldOrFunctionStart = tokens.RecordState();
AType fieldOrFunctionType = this.parser.TypeParser.TryParse(tokens);
Token tokenAfterName = fieldOrFunctionType != null?tokens.PeekAhead(1) : null;
tokens.RestoreState(fieldOrFunctionStart);
if (tokenAfterName == null)
{
tokens.PopExpected("}"); // intentionally induce error
}
switch (tokenAfterName.Value)
{
case "=":
case ";":
fieldsOut.Add(this.ParseField(tokens, classDef, modifiers, annotations));
break;
case "(":
methodsOut.Add(this.ParseFunction(tokens, classDef, fileScope, modifiers, annotations));
break;
case "{":
if (!this.parser.IsCSharpCompat)
{
// TODO(acrylic-convert): properties should be implemented in Acrylic, just not yet.
tokens.PopExpected("}"); // intentionally induce error
}
propertiesOut.Add(this.ParseProperty(tokens, classDef, fileScope, modifiers, annotations));
break;
default:
tokens.PopExpected("}"); // intentionally induce error
break;
}
}
TODO.CheckForUnusedAnnotations();
}
