Block current_block;
Delegate current_delegate;
-
+
+ GenericMethod current_generic_method;
AnonymousMethodExpression current_anonymous_method;
/// <summary>
%token VIRTUAL
%token VOID
%token VOLATILE
+%token WHERE
%token WHILE
%token ARGLIST
%token PARTIAL
%token ARROW
+%token QUERY_FIRST_TOKEN
+%token FROM
+%token JOIN
+%token ON
+%token EQUALS
+%token SELECT
+%token GROUP
+%token BY
+%token LET
+%token ORDERBY
+%token ASCENDING
+%token DESCENDING
+%token INTO
+%token QUERY_LAST_TOKEN
/* C# keywords which are not really keywords */
%token GET "get"
%token OP_XOR_ASSIGN "^="
%token OP_OR_ASSIGN "|="
%token OP_PTR "->"
+%token OP_COALESCING "??"
/* Numbers */
%token LITERAL_INTEGER "int literal"
%token CLOSE_PARENS_NO_CAST
%token CLOSE_PARENS_OPEN_PARENS
%token CLOSE_PARENS_MINUS
+%token DEFAULT_OPEN_PARENS
+%token GENERIC_DIMENSION
+%token DEFAULT_COLON
/* Add precedence rules to solve dangling else s/r conflict */
%nonassoc LOWPREC
Report.Error(1671, name.Location, "A namespace declaration cannot have modifiers or attributes");
}
+ if (name.TypeArguments != null)
+ syntax_error (lexer.Location, "namespace name expected");
+
current_namespace = new NamespaceEntry (
current_namespace, file, name.GetName ());
current_class = current_namespace.SlaveDeclSpace;
;
namespace_name
- : namespace_or_type_name
+ : namespace_or_type_name {
+ MemberName name = (MemberName) $1;
+
+ if (name.TypeArguments != null)
+ syntax_error (lexer.Location, "namespace name expected");
+
+ $$ = name;
+ }
;
namespace_body
: attribute_name opt_attribute_arguments
{
MemberName mname = (MemberName) $1;
- object[] arguments = (object[]) $2;
+ if (mname.IsGeneric) {
+ Report.Error (404, lexer.Location,
+ "'<' unexpected: attributes cannot be generic");
+ }
+
+ object [] arguments = (object []) $2;
MemberName left = mname.Left;
string identifier = mname.Name;
opt_partial
STRUCT
{
+ lexer.ConstraintsParsing = true;
}
type_name
{
push_current_class (new Struct (current_namespace, current_class, name, (int) $2, (Attributes) $1), $3);
}
opt_class_base
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
+
+ current_class.SetParameterInfo ((ArrayList) $9);
+
if (RootContext.Documentation != null)
current_container.DocComment = Lexer.consume_doc_comment ();
}
current_container.AddMethod (method);
anonymous_host = null;
+ current_generic_method = null;
current_local_parameters = null;
if (RootContext.Documentation != null)
method_header
: opt_attributes
opt_modifiers
- type namespace_or_type_name
+ type member_name
open_parens
{
arglist_allowed = true;
}
- opt_formal_parameter_list CLOSE_PARENS
+ opt_formal_parameter_list CLOSE_PARENS
+ {
+ lexer.ConstraintsParsing = true;
+ }
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
arglist_allowed = false;
MemberName name = (MemberName) $4;
current_local_parameters = (Parameters) $7;
- Method method = new Method (current_class, null, (Expression) $3, (int) $2,
- false, name, current_local_parameters, (Attributes) $1);
+ if ($10 != null && name.TypeArguments == null)
+ Report.Error (80, lexer.Location,
+ "Constraints are not allowed on non-generic declarations");
+
+ Method method;
+
+ GenericMethod generic = null;
+ if (name.TypeArguments != null) {
+ generic = new GenericMethod (current_namespace, current_class, name,
+ (Expression) $3, current_local_parameters);
+
+ generic.SetParameterInfo ((ArrayList) $10);
+ }
+
+ method = new Method (current_class, generic, (Expression) $3, (int) $2, false,
+ name, current_local_parameters, (Attributes) $1);
anonymous_host = method;
+ current_generic_method = generic;
if (RootContext.Documentation != null)
method.DocComment = Lexer.consume_doc_comment ();
}
| opt_attributes
opt_modifiers
- VOID namespace_or_type_name
+ VOID member_name
open_parens
{
arglist_allowed = true;
}
- opt_formal_parameter_list CLOSE_PARENS
+ opt_formal_parameter_list CLOSE_PARENS
+ {
+ lexer.ConstraintsParsing = true;
+ }
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
arglist_allowed = false;
-
+
MemberName name = (MemberName) $4;
current_local_parameters = (Parameters) $7;
- Method method = new Method (current_class, null, TypeManager.system_void_expr,
- (int) $2, false, name, current_local_parameters,
- (Attributes) $1);
+ if ($10 != null && name.TypeArguments == null)
+ Report.Error (80, lexer.Location,
+ "Constraints are not allowed on non-generic declarations");
+
+ Method method;
+ GenericMethod generic = null;
+ if (name.TypeArguments != null) {
+ generic = new GenericMethod (current_namespace, current_class, name,
+ TypeManager.system_void_expr, current_local_parameters);
+
+ generic.SetParameterInfo ((ArrayList) $10);
+ }
+
+ method = new Method (current_class, generic, TypeManager.system_void_expr,
+ (int) $2, false, name, current_local_parameters, (Attributes) $1);
+
+ anonymous_host = method;
+ current_generic_method = generic;
+
+ if (RootContext.Documentation != null)
+ method.DocComment = Lexer.consume_doc_comment ();
+
+ $$ = method;
+ }
+ | opt_attributes
+ opt_modifiers
+ PARTIAL
+ VOID member_name
+ open_parens opt_formal_parameter_list CLOSE_PARENS
+ {
+ lexer.ConstraintsParsing = true;
+ }
+ opt_type_parameter_constraints_clauses
+ {
+ lexer.ConstraintsParsing = false;
+
+ MemberName name = (MemberName) $5;
+ current_local_parameters = (Parameters) $7;
+
+ if ($9 != null && name.TypeArguments == null)
+ Report.Error (80, lexer.Location,
+ "Constraints are not allowed on non-generic declarations");
+
+ Method method;
+ GenericMethod generic = null;
+ if (name.TypeArguments != null) {
+ generic = new GenericMethod (current_namespace, current_class, name,
+ TypeManager.system_void_expr, current_local_parameters);
+
+ generic.SetParameterInfo ((ArrayList) $10);
+ }
+
+ int modifiers = (int) $2;
+
+
+ const int invalid_partial_mod = Modifiers.Accessibility | Modifiers.ABSTRACT | Modifiers.EXTERN |
+ Modifiers.NEW | Modifiers.OVERRIDE | Modifiers.SEALED | Modifiers.VIRTUAL;
+
+ if ((modifiers & invalid_partial_mod) != 0) {
+ Report.Error (750, name.Location, "A partial method cannot define access modifier or " +
+ "any of abstract, extern, new, override, sealed, or virtual modifiers");
+ modifiers &= ~invalid_partial_mod;
+ }
+
+ if ((current_class.ModFlags & Modifiers.PARTIAL) == 0) {
+ Report.Error (751, name.Location, "A partial method must be declared within a " +
+ "partial class or partial struct");
+ }
+
+ modifiers |= Modifiers.PARTIAL | Modifiers.PRIVATE;
+
+ method = new Method (current_class, generic, TypeManager.system_void_expr,
+ modifiers, false, name, current_local_parameters, (Attributes) $1);
anonymous_host = method;
+ current_generic_method = generic;
if (RootContext.Documentation != null)
method.DocComment = Lexer.consume_doc_comment ();
| opt_attributes
opt_modifiers
type
- modifiers namespace_or_type_name open_parens opt_formal_parameter_list CLOSE_PARENS
+ modifiers member_name open_parens opt_formal_parameter_list CLOSE_PARENS
{
MemberName name = (MemberName) $5;
Report.Error (1585, name.Location,
| fixed_parameters COMMA fixed_parameter
{
ArrayList pars = (ArrayList) $1;
-
- pars.Add ($3);
+ Parameter p = (Parameter)$3;
+ if (p != null) {
+ if ((p.modFlags & Parameter.Modifier.This) != 0)
+ Report.Error (1100, p.Location, "The parameter modifier `this' can only be used on the first parameter");
+ pars.Add (p);
+ }
$$ = $1;
}
;
if (((Parameter.Modifier)$1 & p2) == p2) {
Error_DuplicateParameterModifier (lexer.Location, p2);
} else {
- Report.Error (1108, lexer.Location, "A parameter cannot have specified more than one modifier");
+ switch (mod & ~Parameter.Modifier.This) {
+ case Parameter.Modifier.REF:
+ Report.Error (1101, lexer.Location, "The parameter modifiers `this' and `ref' cannot be used altogether");
+ break;
+ case Parameter.Modifier.OUT:
+ Report.Error (1102, lexer.Location, "The parameter modifiers `this' and `out' cannot be used altogether");
+ break;
+ default:
+ Report.Error (1108, lexer.Location, "A parameter cannot have specified more than one modifier");
+ break;
+ }
}
$$ = mod;
}
{
if (parameter_modifiers_not_allowed)
Error_ParameterModifierNotValid ("this", (Location)$1);
+
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "extension methods");
$$ = Parameter.Modifier.This;
}
MemberName name = (MemberName) $4;
- prop = new Property (current_class, (Expression) $3, (int) $2,
- false, name, (Attributes) $1, get_block, set_block, accessors.declared_in_reverse);
-
+ if (name.TypeArguments != null)
+ syntax_error (lexer.Location, "a property can't have type arguments");
+
+ prop = new Property (current_class, (Expression) $3, (int) $2, false,
+ name, (Attributes) $1, get_block, set_block, accessors.declared_in_reverse, current_block);
+
current_container.AddProperty (prop);
implicit_value_parameter_type = null;
opt_partial
INTERFACE
{
+ lexer.ConstraintsParsing = true;
}
type_name
{
push_current_class (new Interface (current_namespace, current_class, name, (int) $2, (Attributes) $1), $3);
}
opt_class_base
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
+
+ current_class.SetParameterInfo ((ArrayList) $9);
+
if (RootContext.Documentation != null) {
current_container.DocComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.Allowed;
}
;
+interface_method_declaration_body
+ : OPEN_BRACE
+ {
+ Report.Error (531, (Location)$1,
+ "`{0}.{1}{2}': interface members cannot have a definition",
+ current_class.GetSignatureForError (),
+ ((MemberName) $-0).ToString (),
+ ((Parameters)$-4).GetSignatureForError ());
+
+ lexer.ConstraintsParsing = false;
+ }
+ opt_statement_list CLOSE_BRACE
+ {
+ $$ = null;
+ }
+ | SEMICOLON
+ ;
+
interface_method_declaration
: opt_attributes opt_new type namespace_or_type_name
- OPEN_PARENS opt_formal_parameter_list CLOSE_PARENS
- SEMICOLON
+ open_parens opt_formal_parameter_list CLOSE_PARENS
+ {
+ lexer.ConstraintsParsing = true;
+ }
+ opt_type_parameter_constraints_clauses
+ {
+ // Refer to the name as $-1 in interface_method_declaration_body
+ $$ = $4;
+ }
+ interface_method_declaration_body
{
- $$ = new Method (current_class, null, (Expression) $3, (int) $2, true,
- (MemberName) $4, (Parameters) $6, (Attributes) $1);
+ lexer.ConstraintsParsing = false;
+
+ MemberName name = (MemberName) $4;
+
+ if ($9 != null && name.TypeArguments == null)
+ Report.Error (80, lexer.Location,
+ "Constraints are not allowed on non-generic declarations");
+
+ GenericMethod generic = null;
+ if (name.TypeArguments != null) {
+ generic = new GenericMethod (current_namespace, current_class, name,
+ (Expression) $3, (Parameters) $6);
+
+ generic.SetParameterInfo ((ArrayList) $9);
+ }
+
+ $$ = new Method (current_class, generic, (Expression) $3, (int) $2, true, name,
+ (Parameters) $6, (Attributes) $1);
if (RootContext.Documentation != null)
((Method) $$).DocComment = Lexer.consume_doc_comment ();
}
- | opt_attributes opt_new type namespace_or_type_name
- OPEN_PARENS opt_formal_parameter_list CLOSE_PARENS
- OPEN_BRACE opt_statement_list CLOSE_BRACE
+ | opt_attributes opt_new VOID namespace_or_type_name
+ open_parens opt_formal_parameter_list CLOSE_PARENS
+ {
+ lexer.ConstraintsParsing = true;
+ }
+ opt_type_parameter_constraints_clauses
+ {
+ $$ = $4;
+ }
+ interface_method_declaration_body
{
- $$ = new Method (current_class, null, (Expression) $3, (int) $2, true,
- (MemberName) $4, (Parameters) $6, (Attributes) $1);
+ lexer.ConstraintsParsing = false;
+
+ MemberName name = (MemberName) $4;
+
+ if ($9 != null && name.TypeArguments == null)
+ Report.Error (80, lexer.Location,
+ "Constraints are not allowed on non-generic declarations");
+
+ GenericMethod generic = null;
+ if (name.TypeArguments != null) {
+ generic = new GenericMethod (current_namespace, current_class, name,
+ TypeManager.system_void_expr, (Parameters) $6);
+
+ generic.SetParameterInfo ((ArrayList) $9);
+ }
- Report.Error (531, lexer.Location, "`{0}': interface members cannot have a definition",
- ((Method)$$).GetSignatureForError ());
+ $$ = new Method (current_class, generic, TypeManager.system_void_expr, (int) $2,
+ true, name, (Parameters) $6, (Attributes) $1);
+ if (RootContext.Documentation != null)
+ ((Method) $$).DocComment = Lexer.consume_doc_comment ();
}
;
IDENTIFIER OPEN_PARENS CLOSE_PARENS block
{
LocatedToken lt = (LocatedToken) $5;
- if (lt.Value != current_container.Basename){
+ if (lt.Value != current_container.MemberName.Name){
Report.Error (574, lt.Location, "Name of destructor must match name of class");
} else if (current_container.Kind != Kind.Class){
Report.Error (575, lt.Location, "Only class types can contain destructor");
$$ = null;
} else {
Accessors accessors = (Accessors) $8;
+
+ if (name.TypeArguments != null)
+ syntax_error (lexer.Location, "an event can't have type arguments");
+
if (accessors.get_or_add == null || accessors.set_or_remove == null)
// CS0073 is already reported, so no CS0065 here.
$$ = null;
: opt_attributes
opt_modifiers
DELEGATE
- {
- }
type type_name
open_parens opt_formal_parameter_list CLOSE_PARENS
{
- MemberName name = MakeName ((MemberName) $6);
- Parameters p = (Parameters) $8;
+ MemberName name = MakeName ((MemberName) $5);
+ Parameters p = (Parameters) $7;
- Delegate del = new Delegate (current_namespace, current_class, (Expression) $5,
+ Delegate del = new Delegate (current_namespace, current_class, (Expression) $4,
(int) $2, name, p, (Attributes) $1);
if (RootContext.Documentation != null) {
current_container.AddDelegate (del);
current_delegate = del;
+ lexer.ConstraintsParsing = true;
+ }
+ opt_type_parameter_constraints_clauses
+ {
+ lexer.ConstraintsParsing = false;
}
SEMICOLON
{
+ current_delegate.SetParameterInfo ((ArrayList) $10);
$$ = current_delegate;
current_delegate = null;
}
;
+opt_nullable
+ : /* empty */
+ {
+ lexer.CheckNullable (false);
+ $$ = false;
+ }
+ | INTERR
+ {
+ // FIXME: A hack with parsing conditional operator as nullable type
+ //if (RootContext.Version < LanguageVersion.ISO_2)
+ // Report.FeatureIsNotAvailable (lexer.Location, "nullable types");
+
+ lexer.CheckNullable (true);
+ $$ = true;
+ }
+ ;
+
namespace_or_type_name
- : member_name
- | IDENTIFIER DOUBLE_COLON IDENTIFIER {
+ : IDENTIFIER opt_type_argument_list
+ {
+ LocatedToken lt = (LocatedToken) $1;
+ $$ = new MemberName (lt.Value, (TypeArguments) $2, lt.Location);
+ }
+ | IDENTIFIER DOUBLE_COLON IDENTIFIER opt_type_argument_list {
LocatedToken lt1 = (LocatedToken) $1;
LocatedToken lt2 = (LocatedToken) $3;
- $$ = new MemberName (lt1.Value, lt2.Value, null, lt2.Location);
+ $$ = new MemberName (lt1.Value, lt2.Value, (TypeArguments) $4, lt2.Location);
}
- | namespace_or_type_name DOT IDENTIFIER {
+ | namespace_or_type_name DOT IDENTIFIER opt_type_argument_list {
LocatedToken lt = (LocatedToken) $3;
- $$ = new MemberName ((MemberName) $1, lt.Value);
+ $$ = new MemberName ((MemberName) $1, lt.Value, (TypeArguments) $4, lt.Location);
}
;
member_name
- : IDENTIFIER {
+ : IDENTIFIER opt_type_parameter_list
+ {
LocatedToken lt = (LocatedToken) $1;
- $$ = new MemberName (lt.Value, lt.Location);
+ $$ = new MemberName (lt.Value, (TypeArguments) $2, lt.Location);
+ }
+ | namespace_or_type_name DOT IDENTIFIER opt_type_parameter_list
+ {
+ LocatedToken lt = (LocatedToken) $3;
+ $$ = new MemberName ((MemberName) $1, lt.Value, (TypeArguments) $4, lt.Location);
}
;
type_name
- : member_name
+ : IDENTIFIER opt_type_parameter_list
+ {
+ LocatedToken lt = (LocatedToken) $1;
+ $$ = new MemberName (lt.Value, (TypeArguments)$2, lt.Location);
+ }
;
+//
+// Generics arguments (any type, without attributes)
+//
+
+opt_type_argument_list
+ : /* empty */ { $$ = null; }
+ | OP_GENERICS_LT type_arguments OP_GENERICS_GT
+ {
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "generics");
+
+ $$ = $2;
+ }
+ ;
+
+//
+// Generics parameters (identifiers only, with attributes), used in type, method declarations
+//
+
+opt_type_parameter_list
+ : /* empty */ { $$ = null; }
+ | OP_GENERICS_LT type_arguments OP_GENERICS_GT
+ {
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "generics");
+
+ $$ = $2;
+ }
+ ;
+
+type_arguments
+ : type_argument
+ {
+ TypeArguments type_args = new TypeArguments (lexer.Location);
+ type_args.Add ((Expression) $1);
+ $$ = type_args;
+ }
+ | type_arguments COMMA type_argument
+ {
+ TypeArguments type_args = (TypeArguments) $1;
+ type_args.Add ((Expression) $3);
+ $$ = type_args;
+ }
+ ;
+
+type_argument
+ : type
+ {
+ $$ = $1;
+ }
+ | attribute_sections type
+ {
+ SimpleName sn = $2 as SimpleName;
+ if (sn == null)
+ Error_TypeExpected (GetLocation ($2));
+ else
+ $2 = new TypeParameterName (sn.Name, (Attributes) $1, lexer.Location);
+ $$ = $2;
+ }
+ ;
+
/*
* Before you think of adding a return_type, notice that we have been
* using two rules in the places where it matters (one rule using type
* gets rid of a shift/reduce couple
*/
type
- : namespace_or_type_name
+ : namespace_or_type_name opt_nullable
{
MemberName name = (MemberName) $1;
- $$ = name.GetTypeExpression ();
+
+ if ((bool) $2) {
+ $$ = new ComposedCast (name.GetTypeExpression (), "?", lexer.Location);
+ } else {
+ if (RootContext.Version > LanguageVersion.ISO_2 && name.Name == "var")
+ $$ = new VarExpr (name.Location);
+ else
+ $$ = name.GetTypeExpression ();
+ }
+ }
+ | builtin_types opt_nullable
+ {
+ if ((bool) $2)
+ $$ = new ComposedCast ((Expression) $1, "?", lexer.Location);
}
- | builtin_types
| array_type
- | pointer_type
+ | pointer_type
;
-
pointer_type
: type STAR
{
;
non_expression_type
- : builtin_types
+ : builtin_types opt_nullable
+ {
+ if ((bool) $2)
+ $$ = new ComposedCast ((Expression) $1, "?", lexer.Location);
+ }
| non_expression_type rank_specifier
{
Location loc = GetLocation ($1);
;
array_type
- : type rank_specifiers
+ : type rank_specifiers opt_nullable
{
- $$ = current_array_type = new ComposedCast ((Expression) $1, (string) $2);
+ string rank_specifiers = (string) $2;
+ if ((bool) $3)
+ rank_specifiers += "?";
+
+ $$ = current_array_type = new ComposedCast ((Expression) $1, rank_specifiers);
}
;
{
// 7.5.1: Literals
}
- | member_name
+ | type_name
{
MemberName mn = (MemberName) $1;
$$ = mn.GetTypeExpression ();
$$ = new QualifiedAliasMember (lt1.Value, lt2.Value, lt2.Location);
}
| parenthesized_expression
+ | default_value_expression
| member_access
| invocation_expression
| element_access
;
member_access
- : primary_expression DOT IDENTIFIER
+ : primary_expression DOT IDENTIFIER opt_type_argument_list
{
LocatedToken lt = (LocatedToken) $3;
- $$ = new MemberAccess ((Expression) $1, lt.Value);
+ $$ = new MemberAccess ((Expression) $1, lt.Value, (TypeArguments) $4, lt.Location);
}
- | predefined_type DOT IDENTIFIER
+ | predefined_type DOT IDENTIFIER opt_type_argument_list
{
LocatedToken lt = (LocatedToken) $3;
// TODO: Location is wrong as some predefined types doesn't hold a location
- $$ = new MemberAccess ((Expression) $1, lt.Value, lt.Location);
+ $$ = new MemberAccess ((Expression) $1, lt.Value, (TypeArguments) $4, lt.Location);
}
;
}
;
+opt_object_or_collection_initializer
+ : /* empty */ { $$ = null; }
+ | object_or_collection_initializer
+ ;
+
+object_or_collection_initializer
+ : OPEN_BRACE opt_member_initializer_list CLOSE_BRACE
+ {
+ if ($2 == null)
+ $$ = CollectionOrObjectInitializers.Empty;
+ else
+ $$ = new CollectionOrObjectInitializers ((ArrayList) $2, GetLocation ($1));
+ }
+ | OPEN_BRACE member_initializer_list COMMA CLOSE_BRACE
+ {
+ $$ = new CollectionOrObjectInitializers ((ArrayList) $2, GetLocation ($1));
+ }
+ ;
+
+opt_member_initializer_list
+ : /* empty */ { $$ = null; }
+ | member_initializer_list
+ {
+ $$ = $1;
+ }
+ ;
+
+member_initializer_list
+ : member_initializer
+ {
+ ArrayList a = new ArrayList ();
+ a.Add ($1);
+ $$ = a;
+ }
+ | member_initializer_list COMMA member_initializer
+ {
+ ArrayList a = (ArrayList)$1;
+ a.Add ($3);
+ $$ = a;
+ }
+ ;
+
+member_initializer
+ : IDENTIFIER ASSIGN initializer_value
+ {
+ LocatedToken lt = $1 as LocatedToken;
+ $$ = new ElementInitializer (lt.Value, (Expression)$3, lt.Location);
+ }
+ | non_assignment_expression
+ {
+ $$ = new CollectionElementInitializer ((Expression)$1);
+ }
+ | OPEN_BRACE expression_list CLOSE_BRACE
+ {
+ $$ = new CollectionElementInitializer ((ArrayList)$2, GetLocation ($1));
+ }
+ | OPEN_BRACE CLOSE_BRACE
+ {
+ Report.Error (1920, GetLocation ($1), "An element initializer cannot be empty");
+ }
+ ;
+
+initializer_value
+ : expression
+ | object_or_collection_initializer
+ ;
+
opt_argument_list
: /* empty */ { $$ = null; }
| argument_list
Expression expr = (Expression) $1;
if (expr is ComposedCast){
$$ = new ComposedCast (expr, (string) $2);
- } else if (!(expr is SimpleName || expr is MemberAccess || expr is QualifiedAliasMember)){
+ } else if (!(expr is SimpleName || expr is MemberAccess || expr is ConstructedType || expr is QualifiedAliasMember)){
Error_ExpectingTypeName (expr);
$$ = TypeManager.system_object_expr;
} else {
;
base_access
- : BASE DOT IDENTIFIER
+ : BASE DOT IDENTIFIER opt_type_argument_list
{
LocatedToken lt = (LocatedToken) $3;
- $$ = new BaseAccess (lt.Value, lt.Location);
+ $$ = new BaseAccess (lt.Value, (TypeArguments) $4, lt.Location);
}
| BASE OPEN_BRACKET expression_list CLOSE_BRACKET
{
new_expression
: object_or_delegate_creation_expression
| array_creation_expression
+ | anonymous_type_expression
;
object_or_delegate_creation_expression
- : NEW type OPEN_PARENS opt_argument_list CLOSE_PARENS
+ : NEW type OPEN_PARENS opt_argument_list CLOSE_PARENS opt_object_or_collection_initializer
+ {
+ if ($6 != null) {
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "object initializers");
+
+ $$ = new NewInitialize ((Expression) $2, (ArrayList) $4, (CollectionOrObjectInitializers) $6, (Location) $1);
+ }
+ else
+ $$ = new New ((Expression) $2, (ArrayList) $4, (Location) $1);
+ }
+ | NEW type object_or_collection_initializer
{
- $$ = new New ((Expression) $2, (ArrayList) $4, (Location) $1);
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "collection initializers");
+
+ $$ = new NewInitialize ((Expression) $2, null, (CollectionOrObjectInitializers) $3, (Location) $1);
}
;
{
$$ = new ArrayCreation ((Expression) $2, (string) $3, (ArrayList) $4, (Location) $1);
}
+ | NEW rank_specifiers array_initializer
+ {
+ $$ = new ImplicitlyTypedArrayCreation ((string) $2, (ArrayList) $3, (Location) $1);
+ }
| NEW error
{
Report.Error (1031, (Location) $1, "Type expected");
}
;
+anonymous_type_expression
+ : NEW OPEN_BRACE anonymous_type_parameters CLOSE_BRACE
+ {
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "anonymous types");
+
+ $$ = new AnonymousTypeDeclaration ((ArrayList) $3, current_container, GetLocation ($1));
+ }
+ ;
+
+anonymous_type_parameters
+ : { $$ = null; }
+ | anonymous_type_parameter
+ {
+ ArrayList a = new ArrayList (4);
+ a.Add ($1);
+ $$ = a;
+ }
+ | anonymous_type_parameters COMMA anonymous_type_parameter
+ {
+ ArrayList a = (ArrayList) $1;
+ a.Add ($3);
+ $$ = a;
+ }
+ ;
+
+anonymous_type_parameter
+ : IDENTIFIER ASSIGN variable_initializer
+ {
+ LocatedToken lt = (LocatedToken)$1;
+ $$ = new AnonymousTypeParameter ((Expression)$3, lt.Value, lt.Location);
+ }
+ | IDENTIFIER
+ {
+ LocatedToken lt = (LocatedToken)$1;
+ $$ = new AnonymousTypeParameter (new SimpleName (lt.Value, lt.Location),
+ lt.Value, lt.Location);
+ }
+ | member_access
+ {
+ MemberAccess ma = (MemberAccess) $1;
+ $$ = new AnonymousTypeParameter (ma, ma.Identifier, ma.Location);
+ }
+ | error
+ {
+ Report.Error (746, lexer.Location, "Invalid anonymous type member declarator. " +
+ "Anonymous type members must be a member assignment, simple name or member access expression");
+ }
+ ;
+
opt_rank_specifier
: /* empty */
{
}
;
+opt_rank_specifier_or_nullable
+ : /* empty */
+ {
+ $$ = "";
+ }
+ | INTERR
+ {
+ $$ = "?";
+ }
+ | opt_nullable rank_specifiers
+ {
+ if ((bool) $1)
+ $$ = "?" + $2;
+ else
+ $$ = $2;
+ }
+ | opt_nullable rank_specifiers INTERR
+ {
+ if ((bool) $1)
+ $$ = "?" + $2 + "?";
+ else
+ $$ = $2 + "?";
+ }
+ ;
+
rank_specifiers
: rank_specifier opt_rank_specifier
{
: TYPEOF
{
pushed_current_array_type = current_array_type;
+ lexer.TypeOfParsing = true;
}
- OPEN_PARENS type CLOSE_PARENS
+ OPEN_PARENS typeof_type_expression CLOSE_PARENS
{
+ lexer.TypeOfParsing = false;
Expression type = (Expression)$4;
if (type == TypeManager.system_void_expr)
$$ = new TypeOfVoid ((Location) $1);
current_array_type = pushed_current_array_type;
}
;
+
+typeof_type_expression
+ : type
+ {
+ $$ = $1;
+ }
+ | unbound_type_name
+ {
+ $$ = new UnboundTypeExpression ((MemberName)$1, lexer.Location);
+ }
+ ;
+
+unbound_type_name
+ : IDENTIFIER GENERIC_DIMENSION
+ {
+ if (RootContext.Version < LanguageVersion.ISO_1)
+ Report.FeatureIsNotAvailable (lexer.Location, "generics");
+
+ LocatedToken lt = (LocatedToken) $1;
+ TypeArguments ta = new TypeArguments ((int)$2, lt.Location);
+
+ $$ = new MemberName (lt.Value, ta, lt.Location);
+ }
+ | IDENTIFIER DOUBLE_COLON IDENTIFIER GENERIC_DIMENSION
+ {
+ LocatedToken lt = (LocatedToken) $1;
+ MemberName left = new MemberName (lt.Value, lt.Location);
+ lt = (LocatedToken) $3;
+ TypeArguments ta = new TypeArguments ((int)$4, lt.Location);
+
+ $$ = new MemberName (left, lt.Value, ta, lt.Location);
+ }
+ | unbound_type_name DOT IDENTIFIER GENERIC_DIMENSION
+ {
+ LocatedToken lt = (LocatedToken) $3;
+ TypeArguments ta = new TypeArguments ((int)$4, lt.Location);
+
+ $$ = new MemberName ((MemberName)$1, lt.Value, ta, lt.Location);
+ }
+ | namespace_or_type_name DOT IDENTIFIER GENERIC_DIMENSION
+ {
+ LocatedToken lt = (LocatedToken) $3;
+ TypeArguments ta = new TypeArguments ((int)$4, lt.Location);
+
+ $$ = new MemberName ((MemberName)$1, lt.Value, ta, lt.Location);
+ }
+ ;
+
+
+sizeof_expression
+ : SIZEOF OPEN_PARENS type CLOSE_PARENS {
+ $$ = new SizeOf ((Expression) $3, (Location) $1);
+ }
+ ;
-sizeof_expression
- : SIZEOF OPEN_PARENS type CLOSE_PARENS {
- $$ = new SizeOf ((Expression) $3, (Location) $1);
- }
- ;
-
checked_expression
: CHECKED OPEN_PARENS expression CLOSE_PARENS
{
block
{
$$ = end_anonymous ((ToplevelBlock) $4, (Location) $1);
- }
+ }
;
opt_anonymous_method_signature
}
;
+default_value_expression
+ : DEFAULT_OPEN_PARENS type CLOSE_PARENS
+ {
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (lexer.Location, "default value expression");
+
+ $$ = new DefaultValueExpression ((Expression) $2, lexer.Location);
+ }
+ ;
+
unary_expression
: primary_expression
| BANG prefixed_unary_expression
{
$$ = new Cast ((Expression) $1, (Expression) $3);
}
+ | parenthesized_expression_0 CLOSE_PARENS_NO_CAST default_value_expression
+ {
+ $$ = new Cast ((Expression) $1, (Expression) $3);
+ }
| parenthesized_expression_0 CLOSE_PARENS_OPEN_PARENS cast_expression
{
$$ = new Cast ((Expression) $1, (Expression) $3);
}
;
-pre_increment_expression
- : OP_INC prefixed_unary_expression
- {
- $$ = new UnaryMutator (UnaryMutator.Mode.PreIncrement,
- (Expression) $2, (Location) $1);
- }
- ;
-
-pre_decrement_expression
- : OP_DEC prefixed_unary_expression
- {
- $$ = new UnaryMutator (UnaryMutator.Mode.PreDecrement,
- (Expression) $2, (Location) $1);
- }
- ;
-
multiplicative_expression
: prefixed_unary_expression
| multiplicative_expression STAR prefixed_unary_expression
}
;
+opt_error
+ : /* empty */
+ {
+ $$ = false;
+ }
+ | error
+ {
+ lexer.PutbackNullable ();
+ $$ = true;
+ }
+ ;
+
+nullable_type_or_conditional
+ : type opt_error
+ {
+ if (((bool) $2) && ($1 is ComposedCast))
+ $$ = ((ComposedCast) $1).RemoveNullable ();
+ else
+ $$ = $1;
+ }
+ ;
+
relational_expression
: shift_expression
| relational_expression OP_LT shift_expression
$$ = new Binary (Binary.Operator.GreaterThanOrEqual,
(Expression) $1, (Expression) $3);
}
- | relational_expression IS type
+ | relational_expression IS
{
- $$ = new Is ((Expression) $1, (Expression) $3, (Location) $2);
+ yyErrorFlag = 3;
+ } nullable_type_or_conditional
+ {
+ $$ = new Is ((Expression) $1, (Expression) $4, (Location) $2);
}
- | relational_expression AS type
+ | relational_expression AS
+ {
+ yyErrorFlag = 3;
+ } nullable_type_or_conditional
{
- $$ = new As ((Expression) $1, (Expression) $3, (Location) $2);
+ $$ = new As ((Expression) $1, (Expression) $4, (Location) $2);
}
;
{
$$ = new Conditional ((Expression) $1, (Expression) $3, (Expression) $5);
}
+ | conditional_or_expression OP_COALESCING expression
+ {
+ $$ = new Nullable.NullCoalescingOperator ((Expression) $1, (Expression) $3, lexer.Location);
+ }
+ // We'll be resolved into a `parenthesized_expression_0' later on.
+ | conditional_or_expression INTERR CLOSE_PARENS
+ {
+ $$ = new ComposedCast ((Expression) $1, "?", lexer.Location);
+ lexer.PutbackCloseParens ();
+ }
;
assignment_expression
}
;
-implicitly_typed_lambda_parameter_list
- : IDENTIFIER {
- LocatedToken lt = (LocatedToken) $1;
- ArrayList a = new ArrayList (4);
-
- a.Add (new Parameter ((Expression)null, lt.Value, Parameter.Modifier.NONE, null, lt.Location));
- $$ = a;
- }
- | implicitly_typed_lambda_parameter_list COMMA IDENTIFIER {
- LocatedToken lt = (LocatedToken) $3;
- ArrayList a = (ArrayList) $1;
- a.Add (new Parameter ((Expression)null, lt.Value, Parameter.Modifier.NONE, null, lt.Location));
- $$ = a;
- }
- ;
-
-explicitly_typed_lambda_parameter_list
- : explicitly_typed_lambda_parameter
+lambda_parameter_list
+ : lambda_parameter
{
ArrayList pars = new ArrayList (4);
pars.Add ($1);
$$ = pars;
}
- | explicitly_typed_lambda_parameter_list COMMA explicitly_typed_lambda_parameter
+ | lambda_parameter_list COMMA lambda_parameter
{
ArrayList pars = (ArrayList) $1;
- pars.Add ($3);
-
+ Parameter p = (Parameter)$3;
+ if (pars[0].GetType () != p.GetType ()) {
+ Report.Error (748, p.Location, "All lambda parameters must be typed either explicitly or implicitly");
+ }
+
+ pars.Add (p);
$$ = pars;
}
;
-explicitly_typed_lambda_parameter
+lambda_parameter
: parameter_modifier type IDENTIFIER
{
LocatedToken lt = (LocatedToken) $3;
$$ = new Parameter ((Expression) $1, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
}
- ;
-
-lambda_parameter_list
- : implicitly_typed_lambda_parameter_list { $$ = $1; }
- | explicitly_typed_lambda_parameter_list { $$ = $1; }
+ | IDENTIFIER
+ {
+ LocatedToken lt = (LocatedToken) $1;
+ $$ = new ImplicitLambdaParameter (lt.Value, lt.Location);
+ }
;
opt_lambda_parameter_list
- : /* empty */ { $$ = null; }
+ : /* empty */ { $$ = Parameters.EmptyReadOnlyParameters; }
| lambda_parameter_list {
ArrayList pars_list = (ArrayList) $1;
-
- Parameter [] pars = new Parameter [pars_list.Count];
- pars_list.CopyTo (pars);
- $$ = new Parameters (pars);
+ $$ = new Parameters ((Parameter[])pars_list.ToArray (typeof (Parameter)));
}
;
lambda_expression
: IDENTIFIER ARROW
{
- Parameter [] pars = new Parameter [1];
LocatedToken lt = (LocatedToken) $1;
- pars [0] = new Parameter ((Expression)null, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
-
- Parameters parameters = new Parameters (pars);
-
- start_anonymous (true, parameters, (Location) $2);
+ Parameter p = new ImplicitLambdaParameter (lt.Value, lt.Location);
+ start_anonymous (true, new Parameters (p), (Location) $2);
}
lambda_expression_body
{
;
expression
+ : assignment_expression
+ | non_assignment_expression
+ ;
+
+non_assignment_expression
: conditional_expression
- | assignment_expression
| lambda_expression
+ | query_expression
;
constant_expression
opt_partial
CLASS
{
+ lexer.ConstraintsParsing = true;
}
type_name
{
push_current_class (new Class (current_namespace, current_class, name, (int) $2, (Attributes) $1), $3);
}
opt_class_base
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
+
+ current_class.SetParameterInfo ((ArrayList) $9);
+
if (RootContext.Documentation != null) {
current_container.DocComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.Allowed;
: COLON type_list { current_container.AddBasesForPart (current_class, (ArrayList) $2); }
;
+opt_type_parameter_constraints_clauses
+ : /* empty */ { $$ = null; }
+ | type_parameter_constraints_clauses
+ { $$ = $1; }
+ ;
+
+type_parameter_constraints_clauses
+ : type_parameter_constraints_clause {
+ ArrayList constraints = new ArrayList (1);
+ constraints.Add ($1);
+ $$ = constraints;
+ }
+ | type_parameter_constraints_clauses type_parameter_constraints_clause {
+ ArrayList constraints = (ArrayList) $1;
+ Constraints new_constraint = (Constraints)$2;
+
+ foreach (Constraints c in constraints) {
+ if (new_constraint.TypeParameter == c.TypeParameter) {
+ Report.Error (409, new_constraint.Location, "A constraint clause has already been specified for type parameter `{0}'",
+ new_constraint.TypeParameter);
+ }
+ }
+
+ constraints.Add (new_constraint);
+ $$ = constraints;
+ }
+ ;
+
+type_parameter_constraints_clause
+ : WHERE IDENTIFIER COLON type_parameter_constraints {
+ LocatedToken lt = (LocatedToken) $2;
+ $$ = new Constraints (lt.Value, (ArrayList) $4, lt.Location);
+ }
+ ;
+
+type_parameter_constraints
+ : type_parameter_constraint {
+ ArrayList constraints = new ArrayList (1);
+ constraints.Add ($1);
+ $$ = constraints;
+ }
+ | type_parameter_constraints COMMA type_parameter_constraint {
+ ArrayList constraints = (ArrayList) $1;
+
+ constraints.Add ($3);
+ $$ = constraints;
+ }
+ ;
+
+type_parameter_constraint
+ : type
+ | NEW OPEN_PARENS CLOSE_PARENS {
+ $$ = SpecialConstraint.Constructor;
+ }
+ | CLASS {
+ $$ = SpecialConstraint.ReferenceType;
+ }
+ | STRUCT {
+ $$ = SpecialConstraint.ValueType;
+ }
+ ;
+
//
// Statements (8.2)
//
* > The expressions are converted into types during semantic analysis.
*/
local_variable_type
- : primary_expression opt_rank_specifier
+ : primary_expression opt_rank_specifier_or_nullable
{
// FIXME: Do something smart here regarding the composition of the type.
// SimpleName is when you have
// Blah i;
- Expression expr = (Expression) $1;
- if (!(expr is SimpleName || expr is MemberAccess || expr is ComposedCast || expr is QualifiedAliasMember)) {
+ Expression expr = (Expression) $1;
+ SimpleName sn = expr as SimpleName;
+ if (!(sn != null || expr is MemberAccess || expr is ComposedCast || expr is ConstructedType || expr is QualifiedAliasMember)) {
Error_ExpectingTypeName (expr);
$$ = null;
} else {
// or MemberAccess
//
- if ((string) $2 == "")
- $$ = $1;
- else
+ if ((string) $2 == "") {
+ if (sn != null && RootContext.Version > LanguageVersion.ISO_2 && sn.Name == "var")
+ $$ = new VarExpr (sn.Location);
+ else
+ $$ = $1;
+ } else
$$ = new ComposedCast ((Expression) $1, (string) $2);
}
}
- | builtin_types opt_rank_specifier
+ | builtin_types opt_rank_specifier_or_nullable
{
if ((string) $2 == "")
$$ = $1;
{
Expression expr = (Expression) $1;
- if (!(expr is SimpleName || expr is MemberAccess || expr is ComposedCast || expr is QualifiedAliasMember)) {
+ if (!(expr is SimpleName || expr is MemberAccess || expr is ComposedCast || expr is ConstructedType || expr is QualifiedAliasMember)) {
Error_ExpectingTypeName (expr);
$$ = null;
local_variable_declaration
: local_variable_type variable_declarators
{
- if ($1 != null)
+ if ($1 != null) {
+ VarExpr ve = $1 as VarExpr;
+ if (ve != null)
+ ve.VariableInitializer = (ArrayList)$2;
+
$$ = new DictionaryEntry ($1, $2);
- else
+ } else
$$ = null;
}
- | local_variable_pointer_type opt_rank_specifier variable_declarators
+ | local_variable_pointer_type opt_rank_specifier_or_nullable variable_declarators
{
if ($1 != null){
Expression t;
switch_label
: CASE constant_expression COLON { $$ = new SwitchLabel ((Expression) $2, (Location) $1); }
- | DEFAULT COLON { $$ = new SwitchLabel (null, (Location) $1); }
+ | DEFAULT_COLON { $$ = new SwitchLabel (null, (Location) $1); }
| error {
Report.Error (
1523, GetLocation ($1),
| expression
;
+
+// LINQ
+
+query_expression
+ : first_from_clause
+ {
+ ++lexer.query_parsing;
+ }
+ query_body
+ {
+ if (--lexer.query_parsing == 1)
+ lexer.query_parsing = 0;
+
+ Linq.AQueryClause from = $1 as Linq.AQueryClause;
+
+ from.Tail.Next = (Linq.AQueryClause)$3;
+ $$ = from;
+
+ current_block.SetEndLocation (lexer.Location);
+ current_block = current_block.Parent;
+ }
+ ;
+
+first_from_clause
+ : FROM IDENTIFIER IN expression
+ {
+ current_block = new Linq.QueryBlock (current_block, GetLocation ($1));
+ LocatedToken lt = (LocatedToken) $2;
+
+ current_block.AddVariable (Linq.ImplicitQueryParameter.ImplicitType.Instance, lt.Value, lt.Location);
+ $$ = new Linq.QueryExpression (lt, new Linq.QueryStartClause ((Expression)$4));
+ }
+ | FROM type IDENTIFIER IN expression
+ {
+ current_block = new Linq.QueryBlock (current_block, GetLocation ($1));
+ LocatedToken lt = (LocatedToken) $3;
+
+ Expression type = (Expression)$2;
+ current_block.AddVariable (type, lt.Value, lt.Location);
+ $$ = new Linq.QueryExpression (lt, new Linq.Cast (type, (Expression)$5));
+ }
+ ;
+
+from_clause
+ : FROM IDENTIFIER IN expression
+ {
+ LocatedToken lt = (LocatedToken) $2;
+
+ current_block.AddVariable (Linq.ImplicitQueryParameter.ImplicitType.Instance,
+ lt.Value, lt.Location);
+
+ $$ = new Linq.SelectMany (lt, (Expression)$4);
+ }
+ | FROM type IDENTIFIER IN expression
+ {
+ LocatedToken lt = (LocatedToken) $3;
+
+ Expression type = (Expression)$2;
+ current_block.AddVariable (type, lt.Value, lt.Location);
+ $$ = new Linq.SelectMany (lt, new Linq.Cast (type, (Expression)$5));
+ }
+ ;
+
+query_body
+ : opt_query_body_clauses select_or_group_clause opt_query_continuation
+ {
+ Linq.AQueryClause head = (Linq.AQueryClause)$2;
+
+ if ($3 != null)
+ head.Next = (Linq.AQueryClause)$3;
+
+ if ($1 != null) {
+ Linq.AQueryClause clause = (Linq.AQueryClause)$1;
+ clause.Tail.Next = head;
+ head = clause;
+ }
+
+ $$ = head;
+ }
+ ;
+
+select_or_group_clause
+ : SELECT expression
+ {
+ $$ = new Linq.Select ((Expression)$2, GetLocation ($1));
+ }
+ | GROUP expression BY expression
+ {
+ $$ = new Linq.GroupBy ((Expression)$2, (Expression)$4, GetLocation ($1));
+ }
+ ;
+
+opt_query_body_clauses
+ : /* empty */
+ | query_body_clauses
+ ;
+
+query_body_clauses
+ : query_body_clause
+ | query_body_clauses query_body_clause
+ {
+ ((Linq.AQueryClause)$1).Tail.Next = (Linq.AQueryClause)$2;
+ $$ = $1;
+ }
+ ;
+
+query_body_clause
+ : from_clause
+ | let_clause
+ | where_clause
+ | join_clause
+ | orderby_clause
+ ;
+
+let_clause
+ : LET IDENTIFIER ASSIGN expression
+ {
+ LocatedToken lt = (LocatedToken) $2;
+ current_block.AddVariable (Linq.ImplicitQueryParameter.ImplicitType.Instance,
+ lt.Value, lt.Location);
+ $$ = new Linq.Let (lt, (Expression)$4, GetLocation ($1));
+ }
+ ;
+
+where_clause
+ : WHERE boolean_expression
+ {
+ $$ = new Linq.Where ((Expression)$2, GetLocation ($1));
+ }
+ ;
+
+join_clause
+ : JOIN IDENTIFIER IN expression ON expression EQUALS expression opt_join_into
+ {
+ Location loc = GetLocation ($1);
+ LocatedToken lt = (LocatedToken) $2;
+ current_block.AddVariable (Linq.ImplicitQueryParameter.ImplicitType.Instance,
+ lt.Value, lt.Location);
+
+ if ($9 == null) {
+ $$ = new Linq.Join (lt, (Expression)$4, (Expression)$6,
+ (Expression)$8, loc);
+ } else {
+ LocatedToken lt_into = (LocatedToken) $9;
+ $$ = new Linq.GroupJoin (lt, (Expression)$4, (Expression)$6,
+ (Expression)$8, lt_into, loc);
+ }
+ }
+ | JOIN type IDENTIFIER IN expression ON expression EQUALS expression opt_join_into
+ {
+ Location loc = GetLocation ($1);
+ LocatedToken lt = (LocatedToken) $3;
+ current_block.AddVariable ((Expression)$2, lt.Value, lt.Location);
+
+ Linq.Cast cast = new Linq.Cast ((Expression)$2, (Expression)$5);
+ if ($10 == null) {
+ $$ = new Linq.Join (lt, cast, (Expression)$7,
+ (Expression)$9, loc);
+ } else {
+ LocatedToken lt_into = (LocatedToken) $10;
+ $$ = new Linq.GroupJoin (lt, cast, (Expression)$7,
+ (Expression)$9, lt_into, loc);
+ }
+ }
+ ;
+
+opt_join_into
+ : /* empty */
+ | INTO IDENTIFIER
+ {
+ $$ = $2;
+ }
+ ;
+
+orderby_clause
+ : ORDERBY orderings
+ {
+ $$ = $2;
+ }
+ ;
+
+orderings
+ : order_by
+ | order_by COMMA orderings_then_by
+ {
+ ((Linq.AQueryClause)$1).Next = (Linq.AQueryClause)$3;
+ $$ = $1;
+ }
+ ;
+
+orderings_then_by
+ : then_by
+ {
+ $$ = $1;
+ }
+ | orderings_then_by COMMA then_by
+ {
+ ((Linq.AQueryClause)$1).Tail.Next = (Linq.AQueryClause)$3;
+ $$ = $1;
+ }
+ ;
+
+order_by
+ : expression
+ {
+ $$ = new Linq.OrderByAscending ((Expression)$1);
+ }
+ | expression ASCENDING
+ {
+ $$ = new Linq.OrderByAscending ((Expression)$1);
+ }
+ | expression DESCENDING
+ {
+ $$ = new Linq.OrderByDescending ((Expression)$1);
+ }
+ ;
+
+then_by
+ : expression
+ {
+ $$ = new Linq.ThenByAscending ((Expression)$1);
+ }
+ | expression ASCENDING
+ {
+ $$ = new Linq.ThenByAscending ((Expression)$1);
+ }
+ | expression DESCENDING
+ {
+ $$ = new Linq.ThenByDescending ((Expression)$1);
+ }
+ ;
+
+
+opt_query_continuation
+ : /* empty */
+ | INTO IDENTIFIER
+ {
+ // query continuation block is not linked with query block but with block
+ // before. This means each query can use same range variable names for
+ // different identifiers.
+
+ current_block.SetEndLocation (GetLocation ($1));
+ current_block = current_block.Parent;
+ current_block = new Linq.QueryBlock (current_block, GetLocation ($1));
+
+ LocatedToken lt = (LocatedToken) $2;
+ current_block.AddVariable (Linq.ImplicitQueryParameter.ImplicitType.Instance,
+ lt.Value, lt.Location);
+ }
+ query_body
+ {
+ $$ = new Linq.QueryExpression ((LocatedToken) $2,
+ (Linq.AQueryClause)$4);
+ }
+ ;
+
%%
// <summary>
{
this.identifier = lt.Value;
if (eoai is ArrayList) {
- if (CSharpParser.current_array_type == null)
- Report.Error (622, lt.Location,
- "Can only use array initializer expressions to assign to array types. Try using a new expression instead.");
this.expression_or_array_initializer = new ArrayCreation (CSharpParser.current_array_type, "", (ArrayList)eoai, lt.Location);
} else {
this.expression_or_array_initializer = (Expression)eoai;
Parameter.GetModifierSignature (mod));
}
+static void Error_TypeExpected (Location loc)
+{
+ Report.Error (1031, loc, "Type expected");
+}
+
void push_current_class (TypeContainer tc, object partial_token)
{
if (partial_token != null)
return lexer.Location;
}
-static GenericMethod current_generic_method = null;
-
void start_block (Location loc)
{
if (current_block == null || parsing_anonymous_method) {
projects / mono.git / blobdiff