Block current_block;
Delegate current_delegate;
-
+
+ GenericMethod current_generic_method;
AnonymousMethodExpression current_anonymous_method;
/// <summary>
/// This is used by the unary_expression code to resolve
/// a name against a parameter.
/// </summary>
+
+ // FIXME: This is very ugly and it's very hard to reset it correctly
+ // on all places, especially when some parameters are autogenerated.
Parameters current_local_parameters;
/// <summary>
/// value parameter that is passed to the "set" and "get"accesor
/// methods (properties and indexers).
/// </summary>
- Expression implicit_value_parameter_type;
+ FullNamedExpression implicit_value_parameter_type;
Parameters indexer_parameters;
/// <summary>
/// Hack to help create non-typed array initializer
/// </summary>
- public static Expression current_array_type;
- Expression pushed_current_array_type;
+ public static FullNamedExpression current_array_type;
+ FullNamedExpression pushed_current_array_type;
/// <summary>
/// Used to determine if we are parsing the get/set pair
static public int yacc_verbose_flag;
- // Name of the file we are parsing
- public string name;
-
///
/// The current file.
///
- SourceFile file;
+ CompilationUnit file;
///
/// Temporary Xml documentation cache.
/// assembly and module attribute definitions are enabled
bool global_attrs_enabled = true;
bool has_get, has_set;
+ bool parameter_modifiers_not_allowed;
+ bool params_modifiers_not_allowed;
+ bool arglist_allowed;
%}
%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.FeatureIsNotAvailable (lt.Location, "external alias");
} else {
lt = (LocatedToken) $3;
- current_namespace.UsingExternalAlias (lt.Value, lt.Location);
+ current_namespace.AddUsingExternalAlias (lt.Value, lt.Location);
}
}
;
namespace_or_type_name SEMICOLON
{
LocatedToken lt = (LocatedToken) $2;
- current_namespace.UsingAlias (lt.Value, (MemberName) $4, (Location) $1);
+ current_namespace.AddUsingAlias (lt.Value, (MemberName) $4, (Location) $1);
}
| USING error {
CheckIdentifierToken (yyToken, GetLocation ($2));
using_namespace_directive
: USING namespace_name SEMICOLON
{
- current_namespace.Using ((MemberName) $2, (Location) $1);
- }
+ current_namespace.AddUsing ((MemberName) $2, (Location) $1);
+ }
;
//
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 ();
}
}
Const c = new Const (
- current_class, (Expression) $4, (string) constant.identifier,
+ current_class, (FullNamedExpression) $4, (string) constant.identifier,
(Expression) constant.expression_or_array_initializer, modflags,
(Attributes) $1, l);
variable_declarators
SEMICOLON
{
- Expression type = (Expression) $3;
+ FullNamedExpression type = (FullNamedExpression) $3;
int mod = (int) $2;
current_array_type = null;
fixed_variable_declarators
SEMICOLON
{
- Expression type = (Expression) $4;
+ FullNamedExpression type = (FullNamedExpression) $4;
int mod = (int) $2;
current_array_type = null;
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
- open_parens opt_formal_parameter_list CLOSE_PARENS
+ type member_name
+ open_parens
{
+ arglist_allowed = true;
+ }
+ 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;
+
+ 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,
+ (FullNamedExpression) $3, current_local_parameters);
- Method method = new Method (current_class, null, (Expression) $3, (int) $2,
- false, name, (Parameters) $6, (Attributes) $1);
+ generic.SetParameterInfo ((ArrayList) $10);
+ }
+
+ method = new Method (current_class, generic, (FullNamedExpression) $3, (int) $2, false,
+ name, current_local_parameters, (Attributes) $1);
anonymous_host = method;
- current_local_parameters = (Parameters) $6;
+ current_generic_method = generic;
if (RootContext.Documentation != null)
method.DocComment = Lexer.consume_doc_comment ();
}
| opt_attributes
opt_modifiers
- VOID namespace_or_type_name
- open_parens opt_formal_parameter_list CLOSE_PARENS
+ VOID member_name
+ open_parens
+ {
+ arglist_allowed = true;
+ }
+ 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, (Parameters) $6,
- (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_local_parameters = (Parameters) $6;
+ 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,
: /* empty */ { $$ = Parameters.EmptyReadOnlyParameters; }
| formal_parameter_list
;
+
+opt_parameter_list_no_mod
+ : /* empty */ { $$ = Parameters.EmptyReadOnlyParameters; }
+ |
+ {
+ parameter_modifiers_not_allowed = true;
+ }
+ formal_parameter_list
+ {
+ parameter_modifiers_not_allowed = false;
+ $$ = $2;
+ }
+ ;
formal_parameter_list
: fixed_parameters
$$ = new Parameters (pars);
}
- | fixed_parameters COMMA ARGLIST
+ | fixed_parameters COMMA arglist_modifier
{
ArrayList pars_list = (ArrayList) $1;
//pars_list.Add (new ArglistParameter (GetLocation ($3)));
Report.Error (231, ((Parameter) $3).Location, "A params parameter must be the last parameter in a formal parameter list");
$$ = null;
}
- | ARGLIST COMMA error
+ | arglist_modifier COMMA error
{
Report.Error (257, (Location) $1, "An __arglist parameter must be the last parameter in a formal parameter list");
$$ = null;
{
$$ = new Parameters (new Parameter[] { (Parameter) $1 } );
}
- | ARGLIST
+ | arglist_modifier
{
$$ = new Parameters (new Parameter[0], true);
}
| fixed_parameters COMMA fixed_parameter
{
ArrayList pars = (ArrayList) $1;
-
- pars.Add ($3);
+ Parameter p = (Parameter)$3;
+ if (p != null) {
+ if (p.HasExtensionMethodModifier)
+ Report.Error (1100, p.Location, "The parameter modifier `this' can only be used on the first parameter");
+ pars.Add (p);
+ }
$$ = $1;
}
;
IDENTIFIER
{
LocatedToken lt = (LocatedToken) $4;
- $$ = new Parameter ((Expression) $3, lt.Value, (Parameter.Modifier) $2, (Attributes) $1, lt.Location);
+ $$ = new Parameter ((FullNamedExpression) $3, lt.Value, (Parameter.Modifier) $2, (Attributes) $1, lt.Location);
}
| opt_attributes
opt_parameter_modifier
if (((Parameter.Modifier)$1 & p2) == p2) {
Error_DuplicateParameterModifier (lexer.Location, p2);
} else {
- Report.Error (1108, lexer.Location, "A parameter cannot have specified more than one modifier");
+ switch (mod & ~Parameter.Modifier.This) {
+ case Parameter.Modifier.REF:
+ Report.Error (1101, lexer.Location, "The parameter modifiers `this' and `ref' cannot be used altogether");
+ break;
+ case Parameter.Modifier.OUT:
+ Report.Error (1102, lexer.Location, "The parameter modifiers `this' and `out' cannot be used altogether");
+ break;
+ default:
+ Report.Error (1108, lexer.Location, "A parameter cannot have specified more than one modifier");
+ break;
+ }
}
$$ = mod;
}
;
parameter_modifier
- : REF { $$ = Parameter.Modifier.REF; }
- | OUT { $$ = Parameter.Modifier.OUT; }
- | THIS { $$ = Parameter.Modifier.This; }
+ : REF
+ {
+ if (parameter_modifiers_not_allowed)
+ Error_ParameterModifierNotValid ("ref", (Location)$1);
+
+ $$ = Parameter.Modifier.REF;
+ }
+ | OUT
+ {
+ if (parameter_modifiers_not_allowed)
+ Error_ParameterModifierNotValid ("out", (Location)$1);
+
+ $$ = Parameter.Modifier.OUT;
+ }
+ | THIS
+ {
+ if (parameter_modifiers_not_allowed)
+ Error_ParameterModifierNotValid ("this", (Location)$1);
+
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "extension methods");
+
+ $$ = Parameter.Modifier.This;
+ }
;
parameter_array
- : opt_attributes PARAMS type IDENTIFIER
+ : opt_attributes params_modifier type IDENTIFIER
{
LocatedToken lt = (LocatedToken) $4;
- $$ = new ParamsParameter ((Expression) $3, lt.Value, (Attributes) $1, lt.Location);
+ $$ = new ParamsParameter ((FullNamedExpression) $3, lt.Value, (Attributes) $1, lt.Location);
}
- | opt_attributes PARAMS PARAMS type IDENTIFIER
- {
- Error_DuplicateParameterModifier (lexer.Location, Parameter.Modifier.PARAMS);
+ | opt_attributes params_modifier type error {
+ CheckIdentifierToken (yyToken, GetLocation ($4));
$$ = null;
}
- | opt_attributes PARAMS parameter_modifier type IDENTIFIER
+ ;
+
+params_modifier
+ : PARAMS
+ {
+ if (params_modifiers_not_allowed)
+ Report.Error (1670, ((Location) $1), "The `params' modifier is not allowed in current context");
+ }
+ | PARAMS parameter_modifier
{
- Parameter.Modifier mod = (Parameter.Modifier)$3;
+ Parameter.Modifier mod = (Parameter.Modifier)$2;
if ((mod & Parameter.Modifier.This) != 0) {
- Report.Error (1104, lexer.Location, "The parameter modifiers `this' and `params' cannot be used altogether");
+ Report.Error (1104, (Location)$1, "The parameter modifiers `this' and `params' cannot be used altogether");
} else {
- Report.Error (1611, (Location) $2, "The params parameter cannot be declared as ref or out");
- }
- $$ = null;
+ Report.Error (1611, (Location)$1, "The params parameter cannot be declared as ref or out");
+ }
}
- | opt_attributes PARAMS type error {
- CheckIdentifierToken (yyToken, GetLocation ($4));
- $$ = null;
+ | PARAMS params_modifier
+ {
+ Error_DuplicateParameterModifier ((Location)$1, Parameter.Modifier.PARAMS);
+ }
+ ;
+
+arglist_modifier
+ : ARGLIST
+ {
+ if (!arglist_allowed)
+ Report.Error (1669, (Location) $1, "__arglist is not valid in this context");
}
;
}
OPEN_BRACE
{
- implicit_value_parameter_type = (Expression) $3;
+ implicit_value_parameter_type = (FullNamedExpression) $3;
lexer.PropertyParsing = true;
}
MemberName name = (MemberName) $4;
- prop = new Property (current_class, (Expression) $3, (int) $2,
- false, name, (Attributes) $1, get_block, set_block, accessors.declared_in_reverse);
-
+ if (name.TypeArguments != null)
+ syntax_error (lexer.Location, "a property can't have type arguments");
+
+ prop = new Property (current_class, (FullNamedExpression) $3, (int) $2, false,
+ name, (Attributes) $1, get_block, set_block, accessors.declared_in_reverse, current_block);
+
current_container.AddProperty (prop);
implicit_value_parameter_type = null;
opt_partial
INTERFACE
{
+ lexer.ConstraintsParsing = true;
}
type_name
{
push_current_class (new Interface (current_namespace, current_class, name, (int) $2, (Attributes) $1), $3);
}
opt_class_base
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
+
+ current_class.SetParameterInfo ((ArrayList) $9);
+
if (RootContext.Documentation != null) {
current_container.DocComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.Allowed;
}
;
+interface_method_declaration_body
+ : OPEN_BRACE
+ {
+ Report.Error (531, (Location)$1,
+ "`{0}.{1}{2}': interface members cannot have a definition",
+ current_class.GetSignatureForError (),
+ ((MemberName) $-0).GetSignatureForError (),
+ ((Parameters)$-4).GetSignatureForError ());
+
+ lexer.ConstraintsParsing = false;
+ }
+ opt_statement_list CLOSE_BRACE
+ {
+ $$ = 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
{
- $$ = new Method (current_class, null, (Expression) $3, (int) $2, true,
- (MemberName) $4, (Parameters) $6, (Attributes) $1);
+ // Refer to the name as $-1 in interface_method_declaration_body
+ $$ = $4;
+ }
+ interface_method_declaration_body
+ {
+ 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,
+ (FullNamedExpression) $3, (Parameters) $6);
+
+ generic.SetParameterInfo ((ArrayList) $9);
+ }
+
+ $$ = new Method (current_class, generic, (FullNamedExpression) $3, (int) $2, true, name,
+ (Parameters) $6, (Attributes) $1);
if (RootContext.Documentation != null)
((Method) $$).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
{
- $$ = new Method (current_class, null, (Expression) $3, (int) $2, true,
- (MemberName) $4, (Parameters) $6, (Attributes) $1);
+ $$ = $4;
+ }
+ interface_method_declaration_body
+ {
+ lexer.ConstraintsParsing = false;
+
+ MemberName name = (MemberName) $4;
- Report.Error (531, lexer.Location, "`{0}': interface members cannot have a definition",
- ((Method)$$).GetSignatureForError ());
+ if ($9 != null && name.TypeArguments == null)
+ Report.Error (80, lexer.Location,
+ "Constraints are not allowed on non-generic declarations");
+
+ GenericMethod generic = null;
+ if (name.TypeArguments != null) {
+ generic = new GenericMethod (current_namespace, current_class, name,
+ TypeManager.system_void_expr, (Parameters) $6);
+
+ generic.SetParameterInfo ((ArrayList) $9);
+ }
+
+ $$ = new Method (current_class, generic, TypeManager.system_void_expr, (int) $2,
+ true, name, (Parameters) $6, (Attributes) $1);
+ if (RootContext.Documentation != null)
+ ((Method) $$).DocComment = Lexer.consume_doc_comment ();
}
;
OPEN_BRACE
{
lexer.PropertyParsing = true;
- implicit_value_parameter_type = (Expression)$3;
+ implicit_value_parameter_type = (FullNamedExpression)$3;
}
accessor_declarations
{
Property p = null;
if ($7 == null) {
- p = new Property (current_class, (Expression) $3, (int) $2, true,
+ p = new Property (current_class, (FullNamedExpression) $3, (int) $2, true,
name, (Attributes) $1,
null, null, false);
}
Accessors accessor = (Accessors) $7;
- p = new Property (current_class, (Expression) $3, (int) $2, true,
+ p = new Property (current_class, (FullNamedExpression) $3, (int) $2, true,
name, (Attributes) $1,
accessor.get_or_add, accessor.set_or_remove, accessor.declared_in_reverse);
: opt_attributes opt_new EVENT type IDENTIFIER SEMICOLON
{
LocatedToken lt = (LocatedToken) $5;
- $$ = new EventField (current_class, (Expression) $4, (int) $2, true,
+ $$ = new EventField (current_class, (FullNamedExpression) $4, (int) $2, true,
new MemberName (lt.Value, lt.Location),
(Attributes) $1);
if (RootContext.Documentation != null)
}
| opt_attributes opt_new EVENT type IDENTIFIER OPEN_BRACE
{
- implicit_value_parameter_type = (Expression) $4;
+ implicit_value_parameter_type = (FullNamedExpression) $4;
lexer.EventParsing = true;
}
event_accessor_declarations
interface_indexer_declaration
: opt_attributes opt_new type THIS
- OPEN_BRACKET formal_parameter_list CLOSE_BRACKET
+ OPEN_BRACKET opt_parameter_list_no_mod CLOSE_BRACKET
OPEN_BRACE
{
lexer.PropertyParsing = true;
- implicit_value_parameter_type = (Expression)$3;
+ implicit_value_parameter_type = (FullNamedExpression)$3;
}
accessor_declarations
{
{
Indexer i = null;
if ($10 == null) {
- i = new Indexer (current_class, (Expression) $3,
+ i = new Indexer (current_class, (FullNamedExpression) $3,
new MemberName (TypeContainer.DefaultIndexerName, (Location) $4),
(int) $2, true, (Parameters) $6, (Attributes) $1,
null, null, false);
}
Accessors accessors = (Accessors) $10;
- i = new Indexer (current_class, (Expression) $3,
+ i = new Indexer (current_class, (FullNamedExpression) $3,
new MemberName (TypeContainer.DefaultIndexerName, (Location) $4),
(int) $2, true, (Parameters) $6, (Attributes) $1,
accessors.get_or_add, accessors.set_or_remove, accessors.declared_in_reverse);
break;
OperatorDeclaration decl = (OperatorDeclaration) $3;
-
- Parameter [] param_list = new Parameter [decl.arg2type != null ? 2 : 1];
-
- param_list[0] = new Parameter (decl.arg1type, decl.arg1name, Parameter.Modifier.NONE, null, decl.location);
- if (decl.arg2type != null)
- param_list[1] = new Parameter (decl.arg2type, decl.arg2name, Parameter.Modifier.NONE, null, decl.location);
-
Operator op = new Operator (
current_class, decl.optype, decl.ret_type, (int) $2,
- new Parameters (param_list),
+ current_local_parameters,
(ToplevelBlock) $5, (Attributes) $1, decl.location);
if (RootContext.Documentation != null) {
: block
| SEMICOLON { $$ = null; }
;
+
operator_declarator
- : type OPERATOR overloadable_operator
- open_parens opt_attributes opt_parameter_modifier type IDENTIFIER CLOSE_PARENS
+ : type OPERATOR overloadable_operator open_parens
{
- // TODO: wrong location
- if ((Parameter.Modifier)$6 != Parameter.Modifier.NONE)
- Error_ParameterModifierNotValid ((Location) $2);
-
- LocatedToken lt = (LocatedToken) $8;
- Operator.OpType op = (Operator.OpType) $3;
- CheckUnaryOperator (op, lt.Location);
-
- if (op == Operator.OpType.Addition)
- op = Operator.OpType.UnaryPlus;
-
- if (op == Operator.OpType.Subtraction)
- op = Operator.OpType.UnaryNegation;
-
- Parameter [] pars = new Parameter [1];
- Expression type = (Expression) $7;
-
- pars [0] = new Parameter (type, lt.Value, Parameter.Modifier.NONE, (Attributes) $5, lt.Location);
-
- current_local_parameters = new Parameters (pars);
+ params_modifiers_not_allowed = true;
+ }
+ opt_parameter_list_no_mod CLOSE_PARENS
+ {
+ params_modifiers_not_allowed = false;
+ Location loc = (Location) $2;
+ Operator.OpType op = (Operator.OpType) $3;
+ current_local_parameters = (Parameters)$6;
+
+ int p_count = current_local_parameters.Count;
+ if (p_count == 1) {
+ if (op == Operator.OpType.Addition)
+ op = Operator.OpType.UnaryPlus;
+ else if (op == Operator.OpType.Subtraction)
+ op = Operator.OpType.UnaryNegation;
+ }
+
+ if (IsUnaryOperator (op)) {
+ if (p_count == 2) {
+ Report.Error (1020, loc, "Overloadable binary operator expected");
+ } else if (p_count != 1) {
+ Report.Error (1535, loc, "Overloaded unary operator `{0}' takes one parameter",
+ Operator.GetName (op));
+ }
+ } else {
+ if (p_count > 2) {
+ Report.Error (1534, loc, "Overloaded binary operator `{0}' takes two parameters",
+ Operator.GetName (op));
+ } else if (p_count != 2) {
+ Report.Error (1019, loc, "Overloadable unary operator expected");
+ }
+ }
+
if (RootContext.Documentation != null) {
tmpComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.NotAllowed;
}
- $$ = new OperatorDeclaration (op, (Expression) $1, type, lt.Value,
- null, null, (Location) $2);
+ $$ = new OperatorDeclaration (op, (FullNamedExpression) $1, loc);
}
- | type OPERATOR overloadable_operator
- open_parens
- opt_attributes opt_parameter_modifier type IDENTIFIER COMMA
- opt_attributes opt_parameter_modifier type IDENTIFIER
- CLOSE_PARENS
- {
- // TODO: wrong location
- if ((Parameter.Modifier)$6 != Parameter.Modifier.NONE || (Parameter.Modifier)$11 != Parameter.Modifier.NONE)
- Error_ParameterModifierNotValid ((Location) $2);
-
- LocatedToken ltParam1 = (LocatedToken) $8;
- LocatedToken ltParam2 = (LocatedToken) $13;
- CheckBinaryOperator ((Operator.OpType) $3, (Location) $2);
-
- Parameter [] pars = new Parameter [2];
-
- Expression typeL = (Expression) $7;
- Expression typeR = (Expression) $12;
-
- pars [0] = new Parameter (typeL, ltParam1.Value, Parameter.Modifier.NONE, (Attributes) $5, ltParam1.Location);
- pars [1] = new Parameter (typeR, ltParam2.Value, Parameter.Modifier.NONE, (Attributes) $10, ltParam2.Location);
-
- current_local_parameters = new Parameters (pars);
-
- if (RootContext.Documentation != null) {
- tmpComment = Lexer.consume_doc_comment ();
- Lexer.doc_state = XmlCommentState.NotAllowed;
- }
-
- $$ = new OperatorDeclaration ((Operator.OpType) $3, (Expression) $1,
- typeL, ltParam1.Value,
- typeR, ltParam2.Value, (Location) $2);
- }
| conversion_operator_declarator
- | type OPERATOR overloadable_operator
- open_parens
- opt_attributes opt_parameter_modifier type IDENTIFIER COMMA
- opt_attributes opt_parameter_modifier type IDENTIFIER COMMA error
- {
- Report.Error (1534, (Location) $2, "Overloaded binary operator `{0}' takes two parameters",
- Operator.GetName ((Operator.OpType) $3));
- $$ = null;
- }
- | type OPERATOR overloadable_operator
- open_parens CLOSE_PARENS
- {
- Report.Error (1535, (Location) $2, "Overloaded unary operator `{0}' takes one parameter",
- Operator.GetName ((Operator.OpType) $3));
- $$ = null;
- }
;
overloadable_operator
;
conversion_operator_declarator
- : IMPLICIT OPERATOR type open_parens opt_parameter_modifier type IDENTIFIER CLOSE_PARENS
+ : IMPLICIT OPERATOR type open_parens
{
- // TODO: wrong location
- if ((Parameter.Modifier)$5 != Parameter.Modifier.NONE)
- Error_ParameterModifierNotValid (GetLocation ($4));
-
- LocatedToken lt = (LocatedToken) $7;
- Parameter [] pars = new Parameter [1];
-
- pars [0] = new Parameter ((Expression) $6, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
+ params_modifiers_not_allowed = true;
+ }
+ opt_parameter_list_no_mod CLOSE_PARENS
+ {
+ params_modifiers_not_allowed = false;
- current_local_parameters = new Parameters (pars);
+ Location loc = (Location) $2;
+ current_local_parameters = (Parameters)$6;
if (RootContext.Documentation != null) {
tmpComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.NotAllowed;
}
- $$ = new OperatorDeclaration (Operator.OpType.Implicit, (Expression) $3, (Expression) $6, lt.Value,
- null, null, (Location) $2);
+ $$ = new OperatorDeclaration (Operator.OpType.Implicit, (FullNamedExpression) $3, loc);
}
- | EXPLICIT OPERATOR type open_parens opt_parameter_modifier type IDENTIFIER CLOSE_PARENS
+ | EXPLICIT OPERATOR type open_parens
{
- // TODO: wrong location
- if ((Parameter.Modifier)$5 != Parameter.Modifier.NONE)
- Error_ParameterModifierNotValid (GetLocation ($4));
-
- LocatedToken lt = (LocatedToken) $7;
- Parameter [] pars = new Parameter [1];
-
- pars [0] = new Parameter ((Expression) $6, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
-
- current_local_parameters = new Parameters (pars);
+ params_modifiers_not_allowed = true;
+ }
+ opt_parameter_list_no_mod CLOSE_PARENS
+ {
+ params_modifiers_not_allowed = false;
+
+ Location loc = (Location) $2;
+ current_local_parameters = (Parameters)$6;
if (RootContext.Documentation != null) {
tmpComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.NotAllowed;
}
- $$ = new OperatorDeclaration (Operator.OpType.Explicit, (Expression) $3, (Expression) $6, lt.Value,
- null, null, (Location) $2);
+ $$ = new OperatorDeclaration (Operator.OpType.Explicit, (FullNamedExpression) $3, loc);
}
| IMPLICIT error
{
c.Block = (ToplevelBlock) $4;
c.OptAttributes = (Attributes) $1;
int yield_method = c.ModFlags & Modifiers.METHOD_YIELDS;
- c.ModFlags = (int) $2;
-
+ int mods = (int) $2;
+
if (RootContext.Documentation != null)
c.DocComment = ConsumeStoredComment ();
- if (c.Name == current_container.Basename){
- if ((c.ModFlags & Modifiers.STATIC) != 0){
- if ((c.ModFlags & Modifiers.Accessibility) != 0){
- Report.Error (515, c.Location,
- "`{0}': access modifiers are not allowed on static constructors",
- c.GetSignatureForError ());
- }
-
- c.ModFlags = Modifiers.Check (Constructor.AllowedModifiers, (int) $2, Modifiers.PRIVATE, c.Location);
+ if ((mods & Modifiers.STATIC) != 0 && c.Name == current_container.Basename) {
+ if ((mods & Modifiers.Accessibility) != 0){
+ Report.Error (515, c.Location,
+ "`{0}': access modifiers are not allowed on static constructors",
+ c.GetSignatureForError ());
+ }
- if (c.Initializer != null){
- Report.Error (514, c.Location,
- "`{0}': static constructor cannot have an explicit `this' or `base' constructor call",
- c.GetSignatureForError ());
- }
- } else {
- c.ModFlags = Modifiers.Check (Constructor.AllowedModifiers, (int) $2, Modifiers.PRIVATE, c.Location);
+ if (c.Initializer != null){
+ Report.Error (514, c.Location,
+ "`{0}': static constructor cannot have an explicit `this' or `base' constructor call",
+ c.GetSignatureForError ());
}
- } else {
- // We let another layer check the validity of the constructor.
- //Console.WriteLine ("{0} and {1}", c.Name, current_container.Basename);
}
- c.ModFlags |= yield_method;
+ c.ModFlags = Modifiers.Check (Constructor.AllowedModifiers, mods, Modifiers.PRIVATE, c.Location) | yield_method;
current_container.AddConstructor (c);
current_local_parameters = null;
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");
var.Location);
EventField e = new EventField (
- current_class, (Expression) $4, (int) $2, false, name,
+ current_class, (FullNamedExpression) $4, (int) $2, false, name,
(Attributes) $1);
e.Initializer = var.expression_or_array_initializer;
EVENT type namespace_or_type_name
OPEN_BRACE
{
- implicit_value_parameter_type = (Expression) $4;
+ implicit_value_parameter_type = (FullNamedExpression) $4;
lexer.EventParsing = true;
}
event_accessor_declarations
if ($8 == null){
Report.Error (65, (Location) $3, "`{0}.{1}': event property must have both add and remove accessors",
- current_container.Name, name.ToString ());
+ current_container.Name, name.GetSignatureForError ());
$$ = 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.
$$ = null;
else {
Event e = new EventProperty (
- current_class, (Expression) $4, (int) $2, false, name,
+ current_class, (FullNamedExpression) $4, (int) $2, false, name,
(Attributes) $1, accessors.get_or_add, accessors.set_or_remove);
if (RootContext.Documentation != null) {
e.DocComment = Lexer.consume_doc_comment ();
current_local_parameters = new Parameters (args);
lexer.EventParsing = false;
}
- block
+ block
{
$$ = new Accessor ((ToplevelBlock) $4, 0, (Attributes) $1, (Location) $2);
lexer.EventParsing = true;
+ current_local_parameters = null;
}
| opt_attributes REMOVE error {
Report.Error (73, (Location) $2, "An add or remove accessor must have a body");
;
indexer_declarator
- : type THIS OPEN_BRACKET opt_formal_parameter_list CLOSE_BRACKET
+ : type THIS OPEN_BRACKET opt_parameter_list_no_mod CLOSE_BRACKET
{
Parameters pars = (Parameters) $4;
- if (pars.HasArglist) {
- // "__arglist is not valid in this context"
- Report.Error (1669, (Location) $2, "__arglist is not valid in this context");
- } else if (pars.Empty){
+ if (pars.Empty){
Report.Error (1551, (Location) $2, "Indexers must have at least one parameter");
}
if (RootContext.Documentation != null) {
Lexer.doc_state = XmlCommentState.Allowed;
}
- $$ = new IndexerDeclaration ((Expression) $1, null, pars, (Location) $2);
+ $$ = new IndexerDeclaration ((FullNamedExpression) $1, null, pars, (Location) $2);
}
| type namespace_or_type_name DOT THIS OPEN_BRACKET opt_formal_parameter_list CLOSE_BRACKET
{
Parameters pars = (Parameters) $6;
-
- if (pars.HasArglist) {
- // "__arglist is not valid in this context"
- Report.Error (1669, (Location) $4, "__arglist is not valid in this context");
- } else if (pars.Empty){
+ if (pars.Empty){
Report.Error (1551, (Location) $4, "Indexers must have at least one parameter");
}
MemberName name = (MemberName) $2;
- $$ = new IndexerDeclaration ((Expression) $1, name, pars, (Location) $4);
+ $$ = new IndexerDeclaration ((FullNamedExpression) $1, name, pars, (Location) $4);
if (RootContext.Documentation != null) {
tmpComment = Lexer.consume_doc_comment ();
Location enum_location = lt.Location;
MemberName name = MakeName (new MemberName (lt.Value, enum_location));
- Enum e = new Enum (current_namespace, current_class, (Expression) $5, (int) $2,
+ Enum e = new Enum (current_namespace, current_class, (FullNamedExpression) $5, (int) $2,
name, (Attributes) $1);
if (RootContext.Documentation != 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;
- if (p.HasArglist) {
- // TODO: wrong location
- Report.Error (1669, name.Location, "__arglist is not valid in this context");
- }
+ 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, (FullNamedExpression) $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;
- $$ = new MemberName (lt1.Value, lt2.Value, null, lt2.Location);
+ if (RootContext.Version == LanguageVersion.ISO_1)
+ Report.FeatureIsNotAvailable (lt1.Location, "namespace alias qualifier");
+
+ $$ = new MemberName (lt1.Value, lt2.Value, (TypeArguments) $4, lt1.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;
+ $$ = new MemberName ((MemberName) $1, lt.Value, (TypeArguments) $4, lt.Location);
}
;
type_name
- : member_name
- ;
-
-/*
- * Before you think of adding a return_type, notice that we have been
- * using two rules in the places where it matters (one rule using type
- * and another identical one that uses VOID as the return type). This
- * gets rid of a shift/reduce couple
- */
-type
- : namespace_or_type_name
+ : IDENTIFIER opt_type_parameter_list
{
- MemberName name = (MemberName) $1;
- $$ = name.GetTypeExpression ();
+ LocatedToken lt = (LocatedToken) $1;
+ $$ = new MemberName (lt.Value, (TypeArguments)$2, lt.Location);
}
- | builtin_types
- | array_type
- | pointer_type
;
+//
+// Generics arguments (any type, without attributes)
+//
-pointer_type
- : type STAR
- {
- //
- // Note that here only unmanaged types are allowed but we
- // can't perform checks during this phase - we do it during
- // semantic analysis.
- //
- $$ = new ComposedCast ((Expression) $1, "*", Lexer.Location);
- }
- | VOID STAR
+opt_type_argument_list
+ : /* empty */ { $$ = null; }
+ | OP_GENERICS_LT type_arguments OP_GENERICS_GT
{
- $$ = new ComposedCast (TypeManager.system_void_expr, "*", (Location) $1);
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "generics");
+
+ $$ = $2;
}
;
-non_expression_type
- : builtin_types
+//
+// Generics parameters (identifiers only, with attributes), used in type, method declarations
+//
+
+opt_type_parameter_list
+ : /* empty */ { $$ = 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);
+ $$ = $2;
+ }
+ ;
+
+/*
+ * Before you think of adding a return_type, notice that we have been
+ * using two rules in the places where it matters (one rule using type
+ * and another identical one that uses VOID as the return type). This
+ * gets rid of a shift/reduce couple
+ */
+type
+ : namespace_or_type_name opt_nullable
+ {
+ MemberName name = (MemberName) $1;
+
+ if ((bool) $2) {
+ $$ = new ComposedCast (name.GetTypeExpression (), "?", lexer.Location);
+ } else {
+ if (RootContext.Version > LanguageVersion.ISO_2 && name.Left == null && name.Name == "var")
+ $$ = new VarExpr (name.Location);
+ else
+ $$ = name.GetTypeExpression ();
+ }
+ }
+ | builtin_types opt_nullable
+ {
+ if ((bool) $2)
+ $$ = new ComposedCast ((FullNamedExpression) $1, "?", lexer.Location);
+ }
+ | array_type
+ | pointer_type
+ ;
+
+pointer_type
+ : type STAR
+ {
+ //
+ // Note that here only unmanaged types are allowed but we
+ // can't perform checks during this phase - we do it during
+ // semantic analysis.
+ //
+ $$ = new ComposedCast ((FullNamedExpression) $1, "*", Lexer.Location);
+ }
+ | VOID STAR
+ {
+ $$ = new ComposedCast (TypeManager.system_void_expr, "*", (Location) $1);
+ }
+ ;
+
+non_expression_type
+ : builtin_types opt_nullable
+ {
+ if ((bool) $2)
+ $$ = new ComposedCast ((FullNamedExpression) $1, "?", lexer.Location);
+ }
| non_expression_type rank_specifier
{
Location loc = GetLocation ($1);
if (loc.IsNull)
loc = lexer.Location;
- $$ = new ComposedCast ((Expression) $1, (string) $2, loc);
+ $$ = new ComposedCast ((FullNamedExpression) $1, (string) $2, loc);
}
| non_expression_type STAR
{
Location loc = GetLocation ($1);
if (loc.IsNull)
loc = lexer.Location;
- $$ = new ComposedCast ((Expression) $1, "*", loc);
- }
- | expression rank_specifiers
- {
- $$ = new ComposedCast ((Expression) $1, (string) $2);
- }
- | expression STAR
- {
- $$ = new ComposedCast ((Expression) $1, "*");
+ $$ = new ComposedCast ((FullNamedExpression) $1, "*", loc);
}
//
//
| multiplicative_expression STAR
{
- $$ = new ComposedCast ((Expression) $1, "*");
+ FullNamedExpression e = $1 as FullNamedExpression;
+ if (e != null)
+ $$ = new ComposedCast (e, "*");
+ else
+ Error_TypeExpected (GetLocation ($1));
}
;
type_list
- : type
+ : base_type_name
{
- ArrayList types = new ArrayList (4);
-
+ ArrayList types = new ArrayList (2);
types.Add ($1);
$$ = types;
}
- | type_list COMMA type
+ | type_list COMMA base_type_name
{
ArrayList types = (ArrayList) $1;
-
types.Add ($3);
$$ = types;
}
;
+base_type_name
+ : type
+ {
+ if ($1 is ComposedCast)
+ Report.Error (1521, GetLocation ($1), "Invalid base type `{0}'", ((ComposedCast)$1).GetSignatureForError ());
+ $$ = $1;
+ }
+ ;
+
/*
* replaces all the productions for isolating the various
* simple types, but we need this to reuse it easily in local_variable_type
;
array_type
- : type rank_specifiers
+ : type rank_specifiers opt_nullable
{
- $$ = current_array_type = new ComposedCast ((Expression) $1, (string) $2);
+ string rank_specifiers = (string) $2;
+ if ((bool) $3)
+ rank_specifiers += "?";
+
+ $$ = current_array_type = new ComposedCast ((FullNamedExpression) $1, rank_specifiers);
}
;
{
// 7.5.1: Literals
}
- | member_name
+ | type_name
{
MemberName mn = (MemberName) $1;
$$ = mn.GetTypeExpression ();
}
- | IDENTIFIER DOUBLE_COLON IDENTIFIER
+ | IDENTIFIER DOUBLE_COLON IDENTIFIER opt_type_argument_list
{
LocatedToken lt1 = (LocatedToken) $1;
LocatedToken lt2 = (LocatedToken) $3;
- $$ = new QualifiedAliasMember (lt1.Value, lt2.Value, lt2.Location);
+ if (RootContext.Version == LanguageVersion.ISO_1)
+ Report.FeatureIsNotAvailable (lt1.Location, "namespace alias qualifier");
+
+ $$ = new QualifiedAliasMember (lt1.Value, lt2.Value, (TypeArguments) $4, lt1.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){
- $$ = new ComposedCast (expr, (string) $2);
- } else if (!(expr is SimpleName || expr is MemberAccess || expr is QualifiedAliasMember)){
- Error_ExpectingTypeName (expr);
- $$ = TypeManager.system_object_expr;
- } else {
+ $$ = new ComposedCast ((ComposedCast)expr, (string) $2);
+ } else if (expr is ATypeNameExpression){
//
// So we extract the string corresponding to the SimpleName
// or MemberAccess
//
- $$ = new ComposedCast (expr, (string) $2);
+ $$ = new ComposedCast ((ATypeNameExpression)expr, (string) $2);
+ } else {
+ Error_ExpectingTypeName (expr);
+ $$ = TypeManager.system_object_expr;
}
- current_array_type = (Expression)$$;
+
+ current_array_type = (FullNamedExpression)$$;
}
;
;
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
{
- $$ = new New ((Expression) $2, (ArrayList) $4, (Location) $1);
+ if ($6 != null) {
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "object initializers");
+
+ $$ = new NewInitialize ((Expression) $2, (ArrayList) $4, (CollectionOrObjectInitializers) $6, (Location) $1);
+ }
+ else
+ $$ = new New ((Expression) $2, (ArrayList) $4, (Location) $1);
+ }
+ | NEW type object_or_collection_initializer
+ {
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "collection initializers");
+
+ $$ = new NewInitialize ((Expression) $2, null, (CollectionOrObjectInitializers) $3, (Location) $1);
}
;
opt_rank_specifier
opt_array_initializer
{
- $$ = new ArrayCreation ((Expression) $2, (ArrayList) $4, (string) $6, (ArrayList) $7, (Location) $1);
+ $$ = new ArrayCreation ((FullNamedExpression) $2, (ArrayList) $4, (string) $6, (ArrayList) $7, (Location) $1);
}
| NEW type rank_specifiers array_initializer
{
- $$ = new ArrayCreation ((Expression) $2, (string) $3, (ArrayList) $4, (Location) $1);
+ $$ = new ArrayCreation ((FullNamedExpression) $2, (string) $3, (ArrayList) $4, (Location) $1);
+ }
+ | NEW rank_specifiers array_initializer
+ {
+ $$ = new ImplicitlyTypedArrayCreation ((string) $2, (ArrayList) $3, (Location) $1);
}
| NEW error
{
}
;
+anonymous_type_expression
+ : NEW OPEN_BRACE anonymous_type_parameters_opt_comma CLOSE_BRACE
+ {
+ if (RootContext.Version <= LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($1), "anonymous types");
+
+ $$ = new AnonymousTypeDeclaration ((ArrayList) $3, current_container, GetLocation ($1));
+ }
+ ;
+
+anonymous_type_parameters_opt_comma
+ : anonymous_type_parameters_opt
+ | anonymous_type_parameters COMMA
+ ;
+
+anonymous_type_parameters_opt
+ : { $$ = null; }
+ | anonymous_type_parameters
+ ;
+
+anonymous_type_parameters
+ : anonymous_type_parameter
+ {
+ ArrayList a = new ArrayList (4);
+ a.Add ($1);
+ $$ = 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.Name, 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
+ {
+ $$ = new UnboundTypeExpression ((MemberName)$1, lexer.Location);
+ }
+ ;
+
+unbound_type_name
+ : IDENTIFIER GENERIC_DIMENSION
+ {
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (lexer.Location, "generics");
+
+ LocatedToken lt = (LocatedToken) $1;
+ TypeArguments ta = new TypeArguments ((int)$2, lt.Location);
+
+ $$ = 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);
+
+ if (RootContext.Version == LanguageVersion.ISO_1)
+ Report.FeatureIsNotAvailable (lt.Location, "namespace alias qualifier");
+
+ $$ = new MemberName (left, lt.Value, ta, lt.Location);
+ }
+ | unbound_type_name DOT IDENTIFIER GENERIC_DIMENSION
+ {
+ LocatedToken lt = (LocatedToken) $3;
+ TypeArguments ta = new TypeArguments ((int)$4, lt.Location);
+
+ $$ = 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);
+
+ $$ = new MemberName ((MemberName)$1, lt.Value, ta, lt.Location);
+ }
+ ;
+
sizeof_expression
: SIZEOF OPEN_PARENS type CLOSE_PARENS {
Expression deref;
LocatedToken lt = (LocatedToken) $3;
- deref = new Unary (Unary.Operator.Indirection, (Expression) $1, lt.Location);
+ deref = new Indirection ((Expression) $1, lt.Location);
$$ = new MemberAccess (deref, lt.Value);
}
;
block
{
$$ = end_anonymous ((ToplevelBlock) $4, (Location) $1);
- }
+ }
;
opt_anonymous_method_signature
;
anonymous_method_signature
- : open_parens opt_anonymous_method_parameter_list CLOSE_PARENS
+ : open_parens
{
- if ($2 == null)
- $$ = Parameters.EmptyReadOnlyParameters;
- else {
- ArrayList par_list = (ArrayList) $2;
- Parameter [] pars = new Parameter [par_list.Count];
- par_list.CopyTo (pars);
- $$ = new Parameters (pars);
- }
+ params_modifiers_not_allowed = true;
}
- ;
-
-opt_anonymous_method_parameter_list
- : /* empty */ { $$ = null; }
- | anonymous_method_parameter_list { $$ = $1; }
- ;
-
-anonymous_method_parameter_list
- : anonymous_method_parameter
+ opt_formal_parameter_list CLOSE_PARENS
{
- ArrayList a = new ArrayList (4);
- a.Add ($1);
- $$ = a;
+ params_modifiers_not_allowed = false;
+ $$ = $3;
}
- | anonymous_method_parameter_list COMMA anonymous_method_parameter
+ ;
+
+default_value_expression
+ : DEFAULT_OPEN_PARENS type CLOSE_PARENS
{
- ArrayList a = (ArrayList) $1;
- a.Add ($3);
- $$ = a;
- }
- ;
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (lexer.Location, "default value expression");
-anonymous_method_parameter
- : opt_parameter_modifier type IDENTIFIER {
- LocatedToken lt = (LocatedToken) $3;
- $$ = new Parameter ((Expression) $2, lt.Value, (Parameter.Modifier) $1, null, lt.Location);
- }
- | PARAMS type IDENTIFIER {
- Report.Error (1670, ((LocatedToken) $3).Location, "The `params' modifier is not allowed in anonymous method declaration");
- $$ = null;
+ $$ = new DefaultValueExpression ((Expression) $2, lexer.Location);
}
;
{
$$ = 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);
}
| STAR prefixed_unary_expression
{
- $$ = new Unary (Unary.Operator.Indirection, (Expression) $2, (Location) $1);
+ $$ = new Indirection ((Expression) $2, (Location) $1);
}
| BITWISE_AND prefixed_unary_expression
{
}
;
-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
+ {
+ if (RootContext.Version < LanguageVersion.ISO_2)
+ Report.FeatureIsNotAvailable (GetLocation ($2), "null coalescing operator");
+
+ $$ = new Nullable.NullCoalescingOperator ((Expression) $1, (Expression) $3, lexer.Location);
+ }
+ // We'll be resolved into a `parenthesized_expression_0' later on.
+ | conditional_or_expression INTERR CLOSE_PARENS
+ {
+ $$ = new ComposedCast ((FullNamedExpression) $1, "?", lexer.Location);
+ lexer.PutbackCloseParens ();
+ }
;
assignment_expression
: prefixed_unary_expression ASSIGN expression
{
- $$ = new Assign ((Expression) $1, (Expression) $3);
+ $$ = new SimpleAssign ((Expression) $1, (Expression) $3);
}
| prefixed_unary_expression OP_MULT_ASSIGN 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;
- $$ = new Parameter ((Expression) $2, lt.Value, (Parameter.Modifier) $1, null, lt.Location);
+ $$ = new Parameter ((FullNamedExpression) $2, lt.Value, (Parameter.Modifier) $1, null, lt.Location);
}
| type IDENTIFIER
{
LocatedToken lt = (LocatedToken) $2;
- $$ = new Parameter ((Expression) $1, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
+ $$ = new Parameter ((FullNamedExpression) $1, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
+ }
+ | IDENTIFIER
+ {
+ LocatedToken lt = (LocatedToken) $1;
+ $$ = new ImplicitLambdaParameter (lt.Value, lt.Location);
}
- ;
-
-lambda_parameter_list
- : implicitly_typed_lambda_parameter_list { $$ = $1; }
- | explicitly_typed_lambda_parameter_list { $$ = $1; }
;
opt_lambda_parameter_list
- : /* empty */ { $$ = 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);
+ $$ = new Parameters ((Parameter[])pars_list.ToArray (typeof (Parameter)));
}
;
lambda_expression
: IDENTIFIER ARROW
{
- Parameter [] pars = new Parameter [1];
LocatedToken lt = (LocatedToken) $1;
- pars [0] = new Parameter ((Expression)null, lt.Value, Parameter.Modifier.NONE, null, lt.Location);
-
- Parameters parameters = new Parameters (pars);
-
- start_anonymous (true, parameters, (Location) $2);
+ Parameter p = new ImplicitLambdaParameter (lt.Value, lt.Location);
+ start_anonymous (true, new Parameters (p), (Location) $2);
}
lambda_expression_body
{
;
expression
+ : assignment_expression
+ | non_assignment_expression
+ ;
+
+non_assignment_expression
: conditional_expression
- | assignment_expression
| lambda_expression
+ | query_expression
;
constant_expression
opt_partial
CLASS
{
+ lexer.ConstraintsParsing = true;
}
type_name
{
push_current_class (new Class (current_namespace, current_class, name, (int) $2, (Attributes) $1), $3);
}
opt_class_base
+ opt_type_parameter_constraints_clauses
{
+ lexer.ConstraintsParsing = false;
+
+ current_class.SetParameterInfo ((ArrayList) $9);
+
if (RootContext.Documentation != null) {
current_container.DocComment = Lexer.consume_doc_comment ();
Lexer.doc_state = XmlCommentState.Allowed;
| UNSAFE { $$ = Modifiers.UNSAFE; }
;
-opt_class_base
- : /* empty */
- | class_base
+opt_class_base
+ : /* empty */
+ | class_base
+ ;
+
+class_base
+ : 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);
+ $$ = constraints;
+ }
;
-class_base
- : COLON type_list { current_container.AddBasesForPart (current_class, (ArrayList) $2); }
+type_parameter_constraint
+ : type
+ | NEW OPEN_PARENS CLOSE_PARENS {
+ $$ = SpecialConstraint.Constructor;
+ }
+ | CLASS {
+ $$ = SpecialConstraint.ReferenceType;
+ }
+ | STRUCT {
+ $$ = SpecialConstraint.ValueType;
+ }
;
//
* > 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.
// Foo.Bar.Blah i;
// SimpleName is when you have
// Blah i;
-
+
Expression expr = (Expression) $1;
- if (!(expr is SimpleName || expr is MemberAccess || expr is ComposedCast || expr is QualifiedAliasMember)) {
- Error_ExpectingTypeName (expr);
- $$ = null;
- } else {
+ if (expr is ComposedCast){
+ $$ = new ComposedCast ((ComposedCast)expr, (string) $2);
+ } else if (expr is ATypeNameExpression){
//
// So we extract the string corresponding to the SimpleName
// or MemberAccess
- //
-
- if ((string) $2 == "")
- $$ = $1;
- else
- $$ = new ComposedCast ((Expression) $1, (string) $2);
+ //
+
+ if ((string) $2 == "") {
+ SimpleName sn = expr as SimpleName;
+ if (sn != null && RootContext.Version > LanguageVersion.ISO_2 && sn.Name == "var")
+ $$ = new VarExpr (sn.Location);
+ else
+ $$ = $1;
+ } else {
+ $$ = new ComposedCast ((ATypeNameExpression)expr, (string) $2);
+ }
+ } else {
+ Error_ExpectingTypeName (expr);
+ $$ = TypeManager.system_object_expr;
}
}
- | builtin_types opt_rank_specifier
+ | builtin_types opt_rank_specifier_or_nullable
{
if ((string) $2 == "")
$$ = $1;
else
- $$ = current_array_type = new ComposedCast ((Expression) $1, (string) $2, lexer.Location);
+ $$ = current_array_type = new ComposedCast ((FullNamedExpression) $1, (string) $2, lexer.Location);
}
;
local_variable_pointer_type
: primary_expression STAR
{
- Expression expr = (Expression) $1;
-
- if (!(expr is SimpleName || expr is MemberAccess || expr is ComposedCast || expr is QualifiedAliasMember)) {
- Error_ExpectingTypeName (expr);
+ ATypeNameExpression expr = $1 as ATypeNameExpression;
- $$ = null;
- } else
- $$ = new ComposedCast ((Expression) $1, "*");
+ if (expr != null) {
+ $$ = new ComposedCast (expr, "*");
+ } else {
+ Error_ExpectingTypeName ((Expression)$1);
+ $$ = expr;
+ }
}
| builtin_types STAR
{
- $$ = new ComposedCast ((Expression) $1, "*", lexer.Location);
+ $$ = new ComposedCast ((FullNamedExpression) $1, "*", lexer.Location);
}
| VOID STAR
{
}
| local_variable_pointer_type STAR
{
- $$ = new ComposedCast ((Expression) $1, "*");
+ $$ = new ComposedCast ((FullNamedExpression) $1, "*");
}
;
local_variable_declaration
: local_variable_type variable_declarators
{
- if ($1 != null)
+ if ($1 != null) {
+ VarExpr ve = $1 as VarExpr;
+ if (ve != null)
+ ve.VariableInitializer = (ArrayList)$2;
+
$$ = new DictionaryEntry ($1, $2);
- else
+ } else
$$ = null;
}
- | local_variable_pointer_type opt_rank_specifier variable_declarators
+ | local_variable_pointer_type opt_rank_specifier_or_nullable variable_declarators
{
if ($1 != null){
Expression t;
if ((string) $2 == "")
t = (Expression) $1;
else
- t = new ComposedCast ((Expression) $1, (string) $2);
+ t = new ComposedCast ((FullNamedExpression) $1, (string) $2);
$$ = new DictionaryEntry (t, $3);
} else
$$ = null;
}
;
-object_creation_expression
- : object_or_delegate_creation_expression
- { note ("complain if this is a delegate maybe?"); }
- ;
-
selection_statement
: if_statement
| switch_statement
switch_label
: CASE constant_expression COLON { $$ = 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),
var = new LocalVariableReference (assign_block, decl.identifier, l);
if (expr != null) {
- Assign a = new Assign (var, expr, decl.Location);
+ Assign a = new SimpleAssign (var, expr, decl.Location);
assign_block.AddStatement (new StatementExpression (a));
}
;
try_statement
- : TRY block catch_clauses
+ : TRY block catch_clauses
{
- Catch g = null;
-
- ArrayList c = (ArrayList)$3;
- for (int i = 0; i < c.Count; ++i) {
- Catch cc = (Catch) c [i];
- if (cc.IsGeneral) {
- if (i != c.Count - 1)
- Report.Error (1017, cc.loc, "Try statement already has an empty catch block");
- g = cc;
- c.RemoveAt (i);
- i--;
- }
- }
-
- // Now s contains the list of specific catch clauses
- // and g contains the general one.
-
- $$ = new Try ((Block) $2, c, g, null, ((Block) $2).loc);
+ $$ = new TryCatch ((Block) $2, (ArrayList) $3, (Location) $1, false);
}
- | TRY block opt_catch_clauses FINALLY block
+ | TRY block FINALLY block
{
- Catch g = null;
- ArrayList s = new ArrayList (4);
- ArrayList catch_list = (ArrayList) $3;
-
- if (catch_list != null){
- foreach (Catch cc in catch_list) {
- if (cc.IsGeneral)
- g = cc;
- else
- s.Add (cc);
- }
- }
-
- $$ = new Try ((Block) $2, s, g, (Block) $5, ((Block) $2).loc);
+ $$ = new TryFinally ((Statement) $2, (Block) $4, (Location) $1);
+ }
+ | TRY block catch_clauses FINALLY block
+ {
+ $$ = new TryFinally (new TryCatch ((Block) $2, (ArrayList) $3, (Location) $1, true), (Block) $5, (Location) $1);
}
| TRY block error
{
}
;
-opt_catch_clauses
- : /* empty */ { $$ = null; }
- | catch_clauses
- ;
-
catch_clauses
: catch_clause
{
opt_catch_args
: /* empty */ { $$ = null; }
- | catch_args
+ | catch_args
;
catch_args
- : open_parens type opt_identifier CLOSE_PARENS
- {
+ : OPEN_PARENS type opt_identifier CLOSE_PARENS
+ {
$$ = new DictionaryEntry ($2, $3);
}
- ;
-
+ | OPEN_PARENS CLOSE_PARENS
+ {
+ Report.Error (1015, GetLocation ($1), "A type that derives from `System.Exception', `object', or `string' expected");
+ }
+ ;
checked_statement
: CHECKED block
;
using_statement
- : USING open_parens resource_acquisition CLOSE_PARENS
+ : USING open_parens local_variable_declaration CLOSE_PARENS
{
start_block (lexer.Location);
Block assign_block = current_block;
- if ($3 is DictionaryEntry){
- DictionaryEntry de = (DictionaryEntry) $3;
- Location l = (Location) $1;
-
- Expression type = (Expression) de.Key;
- ArrayList var_declarators = (ArrayList) de.Value;
+ DictionaryEntry de = (DictionaryEntry) $3;
+ Location l = (Location) $1;
- ArrayList vars = new ArrayList (4);
+ Expression type = (Expression) de.Key;
+ ArrayList var_declarators = (ArrayList) de.Value;
- foreach (VariableDeclaration decl in var_declarators){
+ Stack vars = new Stack ();
- LocalInfo vi = current_block.AddVariable (type, decl.identifier, decl.Location);
- if (vi == null)
- continue;
- vi.SetReadOnlyContext (LocalInfo.ReadOnlyContext.Using);
+ foreach (VariableDeclaration decl in var_declarators) {
+ LocalInfo vi = current_block.AddVariable (type, decl.identifier, decl.Location);
+ if (vi == null)
+ continue;
+ vi.SetReadOnlyContext (LocalInfo.ReadOnlyContext.Using);
- Expression expr = decl.expression_or_array_initializer;
- if (expr == null) {
- Report.Error (210, l, "You must provide an initializer in a fixed or using statement declaration");
- }
+ Expression expr = decl.expression_or_array_initializer;
+ if (expr == null) {
+ Report.Error (210, l, "You must provide an initializer in a fixed or using statement declaration");
+ continue;
+ }
+ LocalVariableReference var;
- LocalVariableReference var;
+ // Get a writable reference to this read-only variable.
+ var = new LocalVariableReference (assign_block, decl.identifier, l, vi, false);
- // Get a writable reference to this read-only variable.
- var = new LocalVariableReference (assign_block, decl.identifier, l, vi, false);
+ // This is so that it is not a warning on using variables
+ vi.Used = true;
- // This is so that it is not a warning on using variables
- vi.Used = true;
+ vars.Push (new DictionaryEntry (var, expr));
- vars.Add (new DictionaryEntry (var, expr));
+ // Assign a = new SimpleAssign (var, expr, decl.Location);
+ // assign_block.AddStatement (new StatementExpression (a));
+ }
- // Assign a = new Assign (var, expr, decl.Location);
- // assign_block.AddStatement (new StatementExpression (a));
- }
+ // Note: the $$ here refers to the value of this code block and not of the LHS non-terminal.
+ // It can be referred to as $5 below.
+ $$ = vars;
+ }
+ embedded_statement
+ {
+ Statement stmt = (Statement) $6;
+ Stack vars = (Stack) $5;
+ Location l = (Location) $1;
- // Note: the $$ here refers to the value of this code block and not of the LHS non-terminal.
- // It can be referred to as $5 below.
- $$ = new DictionaryEntry (type, vars);
- } else {
- $$ = $3;
- }
- }
+ while (vars.Count > 0) {
+ DictionaryEntry de = (DictionaryEntry) vars.Pop ();
+ stmt = new Using ((Expression) de.Key, (Expression) de.Value, stmt, l);
+ }
+ current_block.AddStatement (stmt);
+ $$ = end_block (lexer.Location);
+ }
+ | USING open_parens expression CLOSE_PARENS
+ {
+ start_block (lexer.Location);
+ }
embedded_statement
{
- Using u = new Using ($5, (Statement) $6, (Location) $1);
- current_block.AddStatement (u);
+ current_block.AddStatement (new UsingTemporary ((Expression) $3, (Statement) $6, (Location) $1));
$$ = end_block (lexer.Location);
}
;
-resource_acquisition
- : local_variable_declaration
- | expression
+
+// LINQ
+
+query_expression
+ : first_from_clause
+ {
+ ++lexer.query_parsing;
+ }
+ query_body
+ {
+ if (--lexer.query_parsing == 1)
+ lexer.query_parsing = 0;
+
+ Linq.AQueryClause from = $1 as Linq.AQueryClause;
+
+ from.Tail.Next = (Linq.AQueryClause)$3;
+ $$ = 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;
// A class used to hold info about an indexer declarator
// </summary>
public class IndexerDeclaration {
- public Expression type;
+ public FullNamedExpression type;
public MemberName interface_type;
public Parameters param_list;
public Location location;
- public IndexerDeclaration (Expression type, MemberName interface_type,
+ public IndexerDeclaration (FullNamedExpression type, MemberName interface_type,
Parameters param_list, Location loc)
{
this.type = type;
public static readonly SimpleAnonymousHost Simple = new SimpleAnonymousHost ();
bool yields;
- ArrayList anonymous_methods;
public static SimpleAnonymousHost GetSimple () {
Simple.yields = false;
- Simple.anonymous_methods = null;
return Simple;
}
{
yields = true;
}
-
- public void AddAnonymousMethod (AnonymousMethodExpression anonymous)
- {
- if (anonymous_methods == null)
- anonymous_methods = new ArrayList ();
- anonymous_methods.Add (anonymous);
- }
-
+
public void Propagate (IAnonymousHost real_host)
{
if (yields)
real_host.SetYields ();
- if (anonymous_methods != null) {
- foreach (AnonymousMethodExpression ame in anonymous_methods)
- real_host.AddAnonymousMethod (ame);
- }
}
}
// <summary>
// A class used to hold info about an operator declarator
// </summary>
-public class OperatorDeclaration {
- public Operator.OpType optype;
- public Expression ret_type, arg1type, arg2type;
- public string arg1name, arg2name;
- public Location location;
+struct OperatorDeclaration {
+ public readonly Operator.OpType optype;
+ public readonly FullNamedExpression ret_type;
+ public readonly Location location;
- public OperatorDeclaration (Operator.OpType op, Expression ret_type,
- Expression arg1type, string arg1name,
- Expression arg2type, string arg2name, Location location)
+ public OperatorDeclaration (Operator.OpType op, FullNamedExpression ret_type, Location location)
{
optype = op;
this.ret_type = ret_type;
- this.arg1type = arg1type;
- this.arg1name = arg1name;
- this.arg2type = arg2type;
- this.arg2name = arg2name;
this.location = location;
}
-
}
void Error_ExpectingTypeName (Expression expr)
}
}
-public static void Error_ParameterModifierNotValid (Location loc)
+static void Error_ParameterModifierNotValid (string modifier, Location loc)
{
- Report.Error (631, loc, "The modifiers `ref' and `out' are not valid in this context");
+ Report.Error (631, loc, "The parameter modifier `{0}' is not valid in this context",
+ modifier);
}
static void Error_DuplicateParameterModifier (Location loc, Parameter.Modifier mod)
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)
LocalVariableReference var;
var = new LocalVariableReference (implicit_block, decl.identifier, loc);
- assign = new Assign (var, expr, decl.Location);
+ assign = new SimpleAssign (var, expr, decl.Location);
implicit_block.AddStatement (new StatementExpression (assign));
}
return string.Empty;
}
-void CheckUnaryOperator (Operator.OpType op, Location l)
+static bool IsUnaryOperator (Operator.OpType op)
{
switch (op) {
case Operator.OpType.Decrement:
case Operator.OpType.True:
case Operator.OpType.False:
- case Operator.OpType.Addition:
- case Operator.OpType.Subtraction:
-
- break;
-
- default :
- Report.Error (1019, l, "Overloadable unary operator expected");
- break;
-
- }
-}
-
-void CheckBinaryOperator (Operator.OpType op, Location l)
-{
- switch (op) {
-
- case Operator.OpType.Addition:
- case Operator.OpType.Subtraction:
- case Operator.OpType.Multiply:
- case Operator.OpType.Division:
- case Operator.OpType.Modulus:
- case Operator.OpType.BitwiseAnd:
- case Operator.OpType.BitwiseOr:
- case Operator.OpType.ExclusiveOr:
- case Operator.OpType.LeftShift:
- case Operator.OpType.RightShift:
- case Operator.OpType.Equality:
- case Operator.OpType.Inequality:
- case Operator.OpType.GreaterThan:
- case Operator.OpType.LessThan:
- case Operator.OpType.GreaterThanOrEqual:
- case Operator.OpType.LessThanOrEqual:
- break;
-
- default :
- Report.Error (1020, l, "Overloadable binary operator expected");
- break;
+ case Operator.OpType.UnaryPlus:
+ case Operator.OpType.UnaryNegation:
+ return true;
}
-
+ return false;
}
void syntax_error (Location l, string msg)
oob_stack = new Stack ();
}
-public CSharpParser (SeekableStreamReader reader, SourceFile file, ArrayList defines)
+public CSharpParser (SeekableStreamReader reader, CompilationUnit file, ArrayList defines)
{
- this.name = file.Name;
this.file = file;
current_namespace = new NamespaceEntry (null, file, null);
current_class = current_namespace.SlaveDeclSpace;
return lexer.Location;
}
-static GenericMethod current_generic_method = null;
-
void start_block (Location loc)
{
if (current_block == null || parsing_anonymous_method) {
current_local_parameters = parameters;
- ToplevelBlock top_current_block = current_block == null ? null : current_block.Toplevel;
-
current_anonymous_method = lambda
- ? new LambdaExpression (
- current_anonymous_method, current_generic_method, current_container,
- parameters, top_current_block, loc)
- : new AnonymousMethodExpression (
- current_anonymous_method, current_generic_method, current_container,
- parameters, top_current_block, loc);
+ ? new LambdaExpression (current_container, parameters, loc)
+ : new AnonymousMethodExpression (current_container, parameters, loc);
// Force the next block to be created as a ToplevelBlock
parsing_anonymous_method = true;
* Completes the anonymous method processing, if lambda_expr is null, this
* means that we have a Statement instead of an Expression embedded
*/
-AnonymousMethodExpression
-end_anonymous (ToplevelBlock anon_block, Location loc)
+AnonymousMethodExpression end_anonymous (ToplevelBlock anon_block, Location loc)
{
AnonymousMethodExpression retval;
retval = null;
} else {
current_anonymous_method.Block = anon_block;
- if ((anonymous_host != null) && (current_anonymous_method.Parent == null))
- anonymous_host.AddAnonymousMethod (current_anonymous_method);
-
retval = current_anonymous_method;
}
projects / mono.git / blobdiff