/* This file contains the definitions and documentation for the
additional tree codes used in the GNU C++ compiler (see tree.def
for the standard codes).
- Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998, 2003,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998, 2003, 2004, 2005,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2010, 2011
+ Free Software Foundation, Inc.
Hacked by Michael Tiemann (tiemann@cygnus.com)
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
-
/* An OFFSET_REF is used in two situations:
1. An expression of the form `A::m' where `A' is a class and `m' is
- a non-static data member. In this case, operand 0 will be a
- TYPE (corresponding to `A') and operand 1 will be a FIELD_DECL
- (corresponding to `m'.
+ a non-static member. In this case, operand 0 will be a TYPE
+ (corresponding to `A') and operand 1 will be a FIELD_DECL,
+ BASELINK, or TEMPLATE_ID_EXPR (corresponding to `m').
The expression is a pointer-to-member if its address is taken,
- but simply denotes a member of the object if its address isnot
- taken. In the latter case, resolve_offset_ref is used to
- convert it to a representation of the member referred to by the
- OFFSET_REF.
+ but simply denotes a member of the object if its address is not
+ taken.
+
+ This form is only used during the parsing phase; once semantic
+ analysis has taken place they are eliminated.
2. An expression of the form `x.*p'. In this case, operand 0 will
be an expression corresponding to `x' and operand 1 will be an
- expression with pointer-to-member type.
-
- OFFSET_REFs are only used during the parsing phase; once semantic
- analysis has taken place they are eliminated. */
-DEFTREECODE (OFFSET_REF, "offset_ref", 'r', 2)
+ expression with pointer-to-member type. */
+DEFTREECODE (OFFSET_REF, "offset_ref", tcc_reference, 2)
/* A pointer-to-member constant. For a pointer-to-member constant
`X::Y' The PTRMEM_CST_CLASS is the RECORD_TYPE for `X' and the
PTRMEM_CST_MEMBER is the _DECL for `Y'. */
-DEFTREECODE (PTRMEM_CST, "ptrmem_cst", 'c', 0)
+DEFTREECODE (PTRMEM_CST, "ptrmem_cst", tcc_constant, 0)
/* For NEW_EXPR, operand 0 is the placement list.
Operand 1 is the new-declarator.
- Operand 2 is the initializer. */
-DEFTREECODE (NEW_EXPR, "nw_expr", 'e', 3)
-DEFTREECODE (VEC_NEW_EXPR, "vec_nw_expr", 'e', 3)
+ Operand 2 is the number of elements in the array.
+ Operand 3 is the initializer. */
+DEFTREECODE (NEW_EXPR, "nw_expr", tcc_expression, 4)
+DEFTREECODE (VEC_NEW_EXPR, "vec_nw_expr", tcc_expression, 3)
/* For DELETE_EXPR, operand 0 is the store to be destroyed.
Operand 1 is the value to pass to the destroying function
saying whether the store should be deallocated as well. */
-DEFTREECODE (DELETE_EXPR, "dl_expr", 'e', 2)
-DEFTREECODE (VEC_DELETE_EXPR, "vec_dl_expr", 'e', 2)
+DEFTREECODE (DELETE_EXPR, "dl_expr", tcc_expression, 2)
+DEFTREECODE (VEC_DELETE_EXPR, "vec_dl_expr", tcc_expression, 2)
/* Value is reference to particular overloaded class method.
- Operand 0 is the class name (an IDENTIFIER_NODE);
- operand 1 is the field (also an IDENTIFIER_NODE).
+ Operand 0 is the class, operand 1 is the field
The COMPLEXITY field holds the class level (usually 0). */
-DEFTREECODE (SCOPE_REF, "scope_ref", 'r', 2)
+DEFTREECODE (SCOPE_REF, "scope_ref", tcc_reference, 2)
/* When composing an object with a member, this is the result.
Operand 0 is the object. Operand 1 is the member (usually
a dereferenced pointer to member). */
-DEFTREECODE (MEMBER_REF, "member_ref", 'r', 2)
+DEFTREECODE (MEMBER_REF, "member_ref", tcc_reference, 2)
/* Type conversion operator in C++. TREE_TYPE is type that this
operator converts to. Operand is expression to be converted. */
-DEFTREECODE (TYPE_EXPR, "type_expr", 'e', 1)
+DEFTREECODE (TYPE_EXPR, "type_expr", tcc_expression, 1)
-/* For AGGR_INIT_EXPR, operand 0 is function which performs initialization,
- operand 1 is argument list to initialization function,
- and operand 2 is the slot which was allocated for this expression. */
-DEFTREECODE (AGGR_INIT_EXPR, "aggr_init_expr", 'e', 3)
+/* AGGR_INIT_EXPRs have a variably-sized representation similar to
+ that of CALL_EXPRs. Operand 0 is an INTEGER_CST node containing the
+ operand count, operand 1 is the function which performs initialization,
+ operand 2 is the slot which was allocated for this expression, and
+ the remaining operands are the arguments to the initialization function. */
+DEFTREECODE (AGGR_INIT_EXPR, "aggr_init_expr", tcc_vl_exp, 3)
+
+/* Initialization of an array from another array, expressed at a high level
+ so that it works with TARGET_EXPR. Operand 0 is the target, operand 1
+ is the initializer. */
+DEFTREECODE (VEC_INIT_EXPR, "vec_init_expr", tcc_expression, 2)
/* A throw expression. operand 0 is the expression, if there was one,
else it is NULL_TREE. */
-DEFTREECODE (THROW_EXPR, "throw_expr", 'e', 1)
+DEFTREECODE (THROW_EXPR, "throw_expr", tcc_expression, 1)
/* An empty class object. The TREE_TYPE gives the class type. We use
these to avoid actually creating instances of the empty classes. */
-DEFTREECODE (EMPTY_CLASS_EXPR, "empty_class_expr", 'e', 0)
-
-/* A DECL which is really just a placeholder for an expression. Used to
- implement non-class scope anonymous unions. */
-DEFTREECODE (ALIAS_DECL, "alias_decl", 'd', 0)
+DEFTREECODE (EMPTY_CLASS_EXPR, "empty_class_expr", tcc_expression, 0)
/* A reference to a member function or member functions from a base
class. BASELINK_FUNCTIONS gives the FUNCTION_DECL,
functions. BASELINK_BINFO gives the base from which the functions
come, i.e., the base to which the `this' pointer must be converted
before the functions are called. BASELINK_ACCESS_BINFO gives the
- base used to name the functions.
+ base used to name the functions.
A BASELINK is an expression; the TREE_TYPE of the BASELINK gives
the type of the expression. This type is either a FUNCTION_TYPE,
METHOD_TYPE, or `unknown_type_node' indicating that the function is
- overloaded. */
-DEFTREECODE (BASELINK, "baselink", 'x', 0)
+ overloaded. */
+DEFTREECODE (BASELINK, "baselink", tcc_exceptional, 0)
/* Template definition. The following fields have the specified uses,
although there are other macros in cp-tree.h that should be used for
accessing this data.
- DECL_ARGUMENTS template parm vector
- DECL_TEMPLATE_INFO template text &c
+ DECL_ARGUMENTS template parm vector
+ DECL_TEMPLATE_INFO template text &c
DECL_VINDEX list of instantiations already produced;
only done for functions so far
For class template:
- DECL_INITIAL associated templates (methods &c)
- DECL_TEMPLATE_RESULT null
+ DECL_INITIAL associated templates (methods &c)
+ DECL_TEMPLATE_RESULT null
For non-class templates:
TREE_TYPE type of object to be constructed
- DECL_TEMPLATE_RESULT decl for object to be created
- (e.g., FUNCTION_DECL with tmpl parms used)
+ DECL_TEMPLATE_RESULT decl for object to be created
+ (e.g., FUNCTION_DECL with tmpl parms used)
*/
-DEFTREECODE (TEMPLATE_DECL, "template_decl", 'd', 0)
+DEFTREECODE (TEMPLATE_DECL, "template_decl", tcc_declaration, 0)
/* Index into a template parameter list. The TEMPLATE_PARM_IDX gives
the index (from 0) of the parameter, while the TEMPLATE_PARM_LEVEL
gives the level (from 1) of the parameter.
Here's an example:
-
+
template <class T> // Index 0, Level 1.
struct S
{
template <class U, // Index 0, Level 2.
- class V> // Index 1, Level 2.
+ class V> // Index 1, Level 2.
void f();
- };
+ };
The DESCENDANTS will be a chain of TEMPLATE_PARM_INDEXs descended
from this one. The first descendant will have the same IDX, but
struct S<int>
{
template <class U, // Index 0, Level 1, Orig Level 2
- class V> // Index 1, Level 1, Orig Level 2
+ class V> // Index 1, Level 1, Orig Level 2
void f();
};
-
+
The LEVEL is the level of the parameter when we are worrying about
the types of things; the ORIG_LEVEL is the level when we are
worrying about instantiating things. */
-DEFTREECODE (TEMPLATE_PARM_INDEX, "template_parm_index", 'x', 0)
-
-/* Index into a template parameter list. This parameter must be a type.
- The TYPE_FIELDS value will be a TEMPLATE_PARM_INDEX. */
-DEFTREECODE (TEMPLATE_TYPE_PARM, "template_type_parm", 't', 0)
+DEFTREECODE (TEMPLATE_PARM_INDEX, "template_parm_index", tcc_exceptional, 0)
/* Index into a template parameter list for template template parameters.
- This parameter must be a type. The TYPE_FIELDS value will be a
+ This parameter must be a type. The TYPE_FIELDS value will be a
TEMPLATE_PARM_INDEX.
- It is used without template arguments like TT in C<TT>,
+ It is used without template arguments like TT in C<TT>,
TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO is NULL_TREE
and TYPE_NAME is a TEMPLATE_DECL. */
-DEFTREECODE (TEMPLATE_TEMPLATE_PARM, "template_template_parm", 't', 0)
+DEFTREECODE (TEMPLATE_TEMPLATE_PARM, "template_template_parm", tcc_type, 0)
-/* Like TEMPLATE_TEMPLATE_PARM it is used with bound template arguments
- like TT<int>.
- In this case, TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO contains the
- template name and its bound arguments. TYPE_NAME is a TYPE_DECL. */
-DEFTREECODE (BOUND_TEMPLATE_TEMPLATE_PARM, "bound_template_template_parm", 't', 0)
+/* The ordering of the following codes is optimized for the checking
+ macros in tree.h. Changing the order will degrade the speed of the
+ compiler. TEMPLATE_TYPE_PARM, TYPENAME_TYPE, TYPEOF_TYPE,
+ BOUND_TEMPLATE_TEMPLATE_PARM. */
+
+/* Index into a template parameter list. This parameter must be a type.
+ The type.values field will be a TEMPLATE_PARM_INDEX. */
+DEFTREECODE (TEMPLATE_TYPE_PARM, "template_type_parm", tcc_type, 0)
/* A type designated by `typename T::t'. TYPE_CONTEXT is `T',
TYPE_NAME is an IDENTIFIER_NODE for `t'. If the type was named via
template-id, TYPENAME_TYPE_FULLNAME will hold the TEMPLATE_ID_EXPR.
- If TREE_TYPE is present, this type was generated by the implicit
- typename extension, and the TREE_TYPE is a _TYPE from a baseclass
- of `T'. */
-DEFTREECODE (TYPENAME_TYPE, "typename_type", 't', 0)
+ TREE_TYPE is always NULL. */
+DEFTREECODE (TYPENAME_TYPE, "typename_type", tcc_type, 0)
+
+/* A type designated by `__typeof (expr)'. TYPEOF_TYPE_EXPR is the
+ expression in question. */
+DEFTREECODE (TYPEOF_TYPE, "typeof_type", tcc_type, 0)
+
+/* Like TEMPLATE_TEMPLATE_PARM it is used with bound template arguments
+ like TT<int>.
+ In this case, TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO contains the
+ template name and its bound arguments. TYPE_NAME is a TYPE_DECL. */
+DEFTREECODE (BOUND_TEMPLATE_TEMPLATE_PARM, "bound_template_template_parm",
+ tcc_type, 0)
/* For template template argument of the form `T::template C'.
TYPE_CONTEXT is `T', the template parameter dependent object.
TYPE_NAME is an IDENTIFIER_NODE for `C', the member class template. */
-DEFTREECODE (UNBOUND_CLASS_TEMPLATE, "unbound_class_template", 't', 0)
+DEFTREECODE (UNBOUND_CLASS_TEMPLATE, "unbound_class_template", tcc_type, 0)
-/* A type designated by `__typeof (expr)'. TYPE_FIELDS is the
- expression in question. */
-DEFTREECODE (TYPEOF_TYPE, "typeof_type", 't', 0)
+/* A using declaration. USING_DECL_SCOPE contains the specified
+ scope. In a member using decl, unless DECL_DEPENDENT_P is true,
+ USING_DECL_DECLS contains the _DECL or OVERLOAD so named. This is
+ not an alias, but is later expanded into multiple aliases. */
+DEFTREECODE (USING_DECL, "using_decl", tcc_declaration, 0)
-/* A using declaration. DECL_INITIAL contains the specified scope.
- This is not an alias, but is later expanded into multiple aliases. */
-DEFTREECODE (USING_DECL, "using_decl", 'd', 0)
+/* A using directive. The operand is USING_STMT_NAMESPACE. */
+DEFTREECODE (USING_STMT, "using_stmt", tcc_statement, 1)
-/* A using directive. The operand is USING_STMT_NAMESPACE. */
-DEFTREECODE (USING_STMT, "using_directive", 'e', 1)
+/* An un-parsed default argument. Holds a vector of input tokens and
+ a vector of places where the argument was instantiated before
+ parsing had occurred. */
+DEFTREECODE (DEFAULT_ARG, "default_arg", tcc_exceptional, 0)
-/* An un-parsed default argument. Looks like an IDENTIFIER_NODE. */
-DEFTREECODE (DEFAULT_ARG, "default_arg", 'x', 0)
+/* An uninstantiated noexcept-specification. DEFERRED_NOEXCEPT_PATTERN is
+ the pattern from the template, and DEFERRED_NOEXCEPT_ARGS are the
+ template arguments to substitute into the pattern when needed. */
+DEFTREECODE (DEFERRED_NOEXCEPT, "deferred_noexcept", tcc_exceptional, 0)
/* A template-id, like foo<int>. The first operand is the template.
- The second is the TREE_LIST or TREE_VEC of explicitly specified
- arguments. The template will be a FUNCTION_DECL, TEMPLATE_DECL, or
- an OVERLOAD. If the template-id refers to a member template, the
- template may be an IDENTIFIER_NODE. In an uninstantiated template,
- the template may be a LOOKUP_EXPR. */
-DEFTREECODE (TEMPLATE_ID_EXPR, "template_id_expr", 'e', 2)
-
-/* A list-like node for chaining overloading candidates. TREE_TYPE is
+ The second is NULL if there are no explicit arguments, or a
+ TREE_VEC of arguments. The template will be a FUNCTION_DECL,
+ TEMPLATE_DECL, or an OVERLOAD. If the template-id refers to a
+ member template, the template may be an IDENTIFIER_NODE. */
+DEFTREECODE (TEMPLATE_ID_EXPR, "template_id_expr", tcc_expression, 2)
+
+/* A list-like node for chaining overloading candidates. TREE_TYPE is
the original name, and the parameter is the FUNCTION_DECL. */
-DEFTREECODE (OVERLOAD, "overload", 'x', 0)
+DEFTREECODE (OVERLOAD, "overload", tcc_exceptional, 0)
-/* A generic wrapper for something not tree that we want to include in
- tree structure. */
-DEFTREECODE (WRAPPER, "wrapper", 'x', 0)
+/* A pseudo-destructor, of the form "OBJECT.~DESTRUCTOR" or
+ "OBJECT.SCOPE::~DESTRUCTOR. The first operand is the OBJECT. The
+ second operand (if non-NULL) is the SCOPE. The third operand is
+ the TYPE node corresponding to the DESTRUCTOR. The type of the
+ first operand will always be a scalar type.
-/* Used to represent deferred name lookup for dependent names while
- parsing a template declaration. The first argument is an
- IDENTIFIER_NODE for the name in question. The TREE_TYPE is
- unused. */
-DEFTREECODE (LOOKUP_EXPR, "lookup_expr", 'e', 1)
+ The type of a PSEUDO_DTOR_EXPR is always "void", even though it can
+ be used as if it were a zero-argument function. We handle the
+ function-call case specially, and giving it "void" type prevents it
+ being used in expressions in ways that are not permitted. */
+DEFTREECODE (PSEUDO_DTOR_EXPR, "pseudo_dtor_expr", tcc_expression, 3)
/* A whole bunch of tree codes for the initial, superficial parsing of
templates. */
-DEFTREECODE (MODOP_EXPR, "modop_expr", 'e', 3)
-DEFTREECODE (CAST_EXPR, "cast_expr", '1', 1)
-DEFTREECODE (REINTERPRET_CAST_EXPR, "reinterpret_cast_expr", '1', 1)
-DEFTREECODE (CONST_CAST_EXPR, "const_cast_expr", '1', 1)
-DEFTREECODE (STATIC_CAST_EXPR, "static_cast_expr", '1', 1)
-DEFTREECODE (DYNAMIC_CAST_EXPR, "dynamic_cast_expr", '1', 1)
-DEFTREECODE (DOTSTAR_EXPR, "dotstar_expr", 'e', 2)
-DEFTREECODE (TYPEID_EXPR, "typeid_expr", 'e', 1)
-DEFTREECODE (PSEUDO_DTOR_EXPR, "pseudo_dtor_expr", 'e', 3)
+DEFTREECODE (MODOP_EXPR, "modop_expr", tcc_expression, 3)
+DEFTREECODE (CAST_EXPR, "cast_expr", tcc_unary, 1)
+DEFTREECODE (REINTERPRET_CAST_EXPR, "reinterpret_cast_expr", tcc_unary, 1)
+DEFTREECODE (CONST_CAST_EXPR, "const_cast_expr", tcc_unary, 1)
+DEFTREECODE (STATIC_CAST_EXPR, "static_cast_expr", tcc_unary, 1)
+DEFTREECODE (DYNAMIC_CAST_EXPR, "dynamic_cast_expr", tcc_unary, 1)
+DEFTREECODE (IMPLICIT_CONV_EXPR, "implicit_conv_expr", tcc_unary, 1)
+DEFTREECODE (DOTSTAR_EXPR, "dotstar_expr", tcc_expression, 2)
+DEFTREECODE (TYPEID_EXPR, "typeid_expr", tcc_expression, 1)
+DEFTREECODE (NOEXCEPT_EXPR, "noexcept_expr", tcc_unary, 1)
+
+/* A placeholder for an expression that is not type-dependent, but
+ does occur in a template. When an expression that is not
+ type-dependent appears in a larger expression, we must compute the
+ type of that larger expression. That computation would normally
+ modify the original expression, which would change the mangling of
+ that expression if it appeared in a template argument list. In
+ that situation, we create a NON_DEPENDENT_EXPR to take the place of
+ the original expression. The expression is the only operand -- it
+ is only needed for diagnostics. */
+DEFTREECODE (NON_DEPENDENT_EXPR, "non_dependent_expr", tcc_expression, 1)
/* CTOR_INITIALIZER is a placeholder in template code for a call to
setup_vtbl_pointer (and appears in all functions, not just ctors). */
-DEFTREECODE (CTOR_INITIALIZER, "ctor_initializer", 'e', 1)
-DEFTREECODE (TRY_BLOCK, "try_block", 'e', 2)
-DEFTREECODE (EH_SPEC_BLOCK, "eh_spec_block", 'e', 2)
+DEFTREECODE (CTOR_INITIALIZER, "ctor_initializer", tcc_expression, 1)
+
+DEFTREECODE (TRY_BLOCK, "try_block", tcc_statement, 2)
+
+DEFTREECODE (EH_SPEC_BLOCK, "eh_spec_block", tcc_statement, 2)
+
/* A HANDLER wraps a catch handler for the HANDLER_TYPE. If this is
CATCH_ALL_TYPE, then the handler catches all types. The declaration of
the catch variable is in HANDLER_PARMS, and the body block in
HANDLER_BODY. */
-DEFTREECODE (HANDLER, "handler", 'e', 2)
+DEFTREECODE (HANDLER, "handler", tcc_statement, 2)
/* A MUST_NOT_THROW_EXPR wraps an expression that may not
- throw, and must call terminate if it does. */
-DEFTREECODE (MUST_NOT_THROW_EXPR, "must_not_throw_expr", 'e', 1)
-
-DEFTREECODE (TAG_DEFN, "tag_defn", 'e', 0)
-
-/* The following codes are used to represent implicit conversion
- sequences, in the sense of [over.best.ics]. The conversion
- sequences are connected through their first operands, with the
- first conversion to be performed at the end of the chain.
-
- The innermost conversion (i.e, the one at the end of the chain) is
- always an IDENTITY_CONV, corresponding to the identity conversion. */
-
-DEFTREECODE (IDENTITY_CONV, "identity_conv", 'e', 1)
-DEFTREECODE (LVALUE_CONV, "lvalue_conv", 'e', 1)
-DEFTREECODE (QUAL_CONV, "qual_conv", 'e', 1)
-DEFTREECODE (STD_CONV, "std_conv", 'e', 1)
-DEFTREECODE (PTR_CONV, "ptr_conv", 'e', 1)
-DEFTREECODE (PMEM_CONV, "pmem_conv", 'e', 1)
-DEFTREECODE (BASE_CONV, "base_conv", 'e', 1)
-DEFTREECODE (REF_BIND, "ref_bind", 'e', 1)
-DEFTREECODE (USER_CONV, "user_conv", 'e', 2)
-DEFTREECODE (AMBIG_CONV, "ambig_conv", 'e', 1)
-DEFTREECODE (RVALUE_CONV, "rvalue_conv", 'e', 1)
+ throw, and must call terminate if it does. The second argument
+ is a condition, used in templates to express noexcept (condition). */
+DEFTREECODE (MUST_NOT_THROW_EXPR, "must_not_throw_expr", tcc_expression, 2)
+
+/* A CLEANUP_STMT marks the point at which a declaration is fully
+ constructed. The CLEANUP_EXPR is run on behalf of CLEANUP_DECL
+ when CLEANUP_BODY completes. */
+DEFTREECODE (CLEANUP_STMT, "cleanup_stmt", tcc_statement, 3)
+
+/* Represents an 'if' statement. The operands are IF_COND,
+ THEN_CLAUSE, and ELSE_CLAUSE, and the current scope, respectively. */
+/* ??? It is currently still necessary to distinguish between IF_STMT
+ and COND_EXPR for the benefit of templates. */
+DEFTREECODE (IF_STMT, "if_stmt", tcc_statement, 4)
+
+/* Used to represent a `for' statement. The operands are
+ FOR_INIT_STMT, FOR_COND, FOR_EXPR, and FOR_BODY, respectively. */
+DEFTREECODE (FOR_STMT, "for_stmt", tcc_statement, 5)
+
+/* Used to represent a range-based `for' statement. The operands are
+ RANGE_FOR_DECL, RANGE_FOR_EXPR, RANGE_FOR_BODY, and RANGE_FOR_SCOPE,
+ respectively. Only used in templates. */
+DEFTREECODE (RANGE_FOR_STMT, "range_for_stmt", tcc_statement, 4)
+
+/* Used to represent a 'while' statement. The operands are WHILE_COND
+ and WHILE_BODY, respectively. */
+DEFTREECODE (WHILE_STMT, "while_stmt", tcc_statement, 2)
+
+/* Used to represent a 'do' statement. The operands are DO_BODY and
+ DO_COND, respectively. */
+DEFTREECODE (DO_STMT, "do_stmt", tcc_statement, 2)
+
+/* Used to represent a 'break' statement. */
+DEFTREECODE (BREAK_STMT, "break_stmt", tcc_statement, 0)
+
+/* Used to represent a 'continue' statement. */
+DEFTREECODE (CONTINUE_STMT, "continue_stmt", tcc_statement, 0)
+
+/* Used to represent a 'switch' statement. The operands are
+ SWITCH_STMT_COND, SWITCH_STMT_BODY, SWITCH_STMT_TYPE, and
+ SWITCH_STMT_SCOPE, respectively. */
+DEFTREECODE (SWITCH_STMT, "switch_stmt", tcc_statement, 4)
+
+/* Used to represent an expression statement. Use `EXPR_STMT_EXPR' to
+ obtain the expression. */
+DEFTREECODE (EXPR_STMT, "expr_stmt", tcc_expression, 1)
+
+DEFTREECODE (TAG_DEFN, "tag_defn", tcc_expression, 0)
+
+/* Represents an 'offsetof' expression during template expansion. */
+DEFTREECODE (OFFSETOF_EXPR, "offsetof_expr", tcc_expression, 1)
+
+/* Represents a 'sizeof' expression during template expansion. */
+DEFTREECODE (SIZEOF_EXPR, "sizeof_expr", tcc_expression, 1)
+
+/* Represents the -> operator during template expansion. */
+DEFTREECODE (ARROW_EXPR, "arrow_expr", tcc_expression, 1)
+
+/* Represents an '__alignof__' expression during template
+ expansion. */
+DEFTREECODE (ALIGNOF_EXPR, "alignof_expr", tcc_expression, 1)
+
+/* Represents an Objective-C++ '@encode' expression during template
+ expansion. */
+DEFTREECODE (AT_ENCODE_EXPR, "at_encode_expr", tcc_expression, 1)
+
+/* A STMT_EXPR represents a statement-expression during template
+ expansion. This is the GCC extension { ( ... ) }. The
+ STMT_EXPR_STMT is the statement given by the expression. */
+DEFTREECODE (STMT_EXPR, "stmt_expr", tcc_expression, 1)
+
+/* Unary plus. Operand 0 is the expression to which the unary plus
+ is applied. */
+DEFTREECODE (UNARY_PLUS_EXPR, "unary_plus_expr", tcc_unary, 1)
+
+/** C++0x extensions. */
+
+/* A static assertion. This is a C++0x extension.
+ STATIC_ASSERT_CONDITION contains the condition that is being
+ checked. STATIC_ASSERT_MESSAGE contains the message (a string
+ literal) to be displayed if the condition fails to hold. */
+DEFTREECODE (STATIC_ASSERT, "static_assert", tcc_exceptional, 0)
+
+/* Represents an argument pack of types (or templates). An argument
+ pack stores zero or more arguments that will be used to instantiate
+ a parameter pack.
+
+ ARGUMENT_PACK_ARGS retrieves the arguments stored in the argument
+ pack.
+
+ Example:
+ template<typename... Values>
+ class tuple { ... };
+
+ tuple<int, float, double> t;
+
+ Values is a (template) parameter pack. When tuple<int, float,
+ double> is instantiated, the Values parameter pack is instantiated
+ with the argument pack <int, float, double>. ARGUMENT_PACK_ARGS will
+ be a TREE_VEC containing int, float, and double. */
+DEFTREECODE (TYPE_ARGUMENT_PACK, "type_argument_pack", tcc_type, 0)
+
+/* Represents an argument pack of values, which can be used either for
+ non-type template arguments or function call arguments.
+
+ NONTYPE_ARGUMENT_PACK plays precisely the same role as
+ TYPE_ARGUMENT_PACK, but will be used for packing non-type template
+ arguments (e.g., "int... Dimensions") or function arguments ("const
+ Args&... args"). */
+DEFTREECODE (NONTYPE_ARGUMENT_PACK, "nontype_argument_pack", tcc_expression, 1)
+
+/* Represents a type expression that will be expanded into a list of
+ types when instantiated with one or more argument packs.
+
+ PACK_EXPANSION_PATTERN retrieves the expansion pattern. This is
+ the type or expression that we will substitute into with each
+ argument in an argument pack.
+
+ SET_PACK_EXPANSION_PATTERN sets the expansion pattern.
+
+ PACK_EXPANSION_PARAMETER_PACKS contains a TREE_LIST of the parameter
+ packs that are used in this pack expansion.
+
+ Example:
+ template<typename... Values>
+ struct tied : tuple<Values&...> {
+ // ...
+ };
+
+ The derivation from tuple contains a TYPE_PACK_EXPANSION for the
+ template arguments. Its PACK_EXPANSION_PATTERN is "Values&" and its
+ PACK_EXPANSION_PARAMETER_PACKS will contain "Values". */
+DEFTREECODE (TYPE_PACK_EXPANSION, "type_pack_expansion", tcc_type, 0)
+
+/* Represents an expression that will be expanded into a list of
+ expressions when instantiated with one or more argument packs.
+
+ EXPR_PACK_EXPANSION plays precisely the same role as TYPE_PACK_EXPANSION,
+ but will be used for expressions. */
+DEFTREECODE (EXPR_PACK_EXPANSION, "expr_pack_expansion", tcc_expression, 3)
+
+/* Selects the Ith parameter out of an argument pack. This node will
+ be used when instantiating pack expansions; see
+ tsubst_pack_expansion.
+
+ ARGUMENT_PACK_SELECT_FROM_PACK contains the *_ARGUMENT_PACK node
+ from which the argument will be selected.
+
+ ARGUMENT_PACK_SELECT_INDEX contains the index into the argument
+ pack that will be returned by this ARGUMENT_PACK_SELECT node. The
+ index is a machine integer. */
+DEFTREECODE (ARGUMENT_PACK_SELECT, "argument_pack_select", tcc_exceptional, 0)
+
+/** C++ extensions. */
+
+/* Represents a trait expression during template expansion. */
+DEFTREECODE (TRAIT_EXPR, "trait_expr", tcc_exceptional, 0)
+
+/* A lambda expression. This is a C++0x extension.
+ LAMBDA_EXPR_DEFAULT_CAPTURE_MODE is an enum for the default, which may be
+ none.
+ LAMBDA_EXPR_CAPTURE_LIST holds the capture-list, including `this'.
+ LAMBDA_EXPR_THIS_CAPTURE goes straight to the capture of `this', if it exists.
+ LAMBDA_EXPR_PENDING_PROXIES is a vector of capture proxies which need to
+ be pushed once scope returns to the lambda.
+ LAMBDA_EXPR_MUTABLE_P signals whether this lambda was declared mutable.
+ LAMBDA_EXPR_RETURN_TYPE holds the return type, if it was specified. */
+DEFTREECODE (LAMBDA_EXPR, "lambda_expr", tcc_exceptional, 0)
+
+/* The declared type of an expression. This is a C++0x extension.
+ DECLTYPE_TYPE_EXPR is the expression whose type we are computing.
+ DECLTYPE_TYPE_ID_EXPR_OR_MEMBER_ACCESS_P states whether the
+ expression was parsed as an id-expression or a member access
+ expression. When false, it was parsed as a full expression.
+ DECLTYPE_FOR_LAMBDA_CAPTURE is set if we want lambda capture semantics.
+ DECLTYPE_FOR_LAMBDA_RETURN is set if we want lambda return deduction. */
+DEFTREECODE (DECLTYPE_TYPE, "decltype_type", tcc_type, 0)
+
+/* A type designated by `__underlying_type (type)'.
+ UNDERLYING_TYPE_TYPE is the type in question. */
+DEFTREECODE (UNDERLYING_TYPE, "underlying_type", tcc_type, 0)
+
+/* A type designated by one of the bases type traits.
+ BASES_TYPE is the type in question. */
+DEFTREECODE (BASES, "bases", tcc_type, 0)
+
+/* Used to represent the template information stored by template
+ specializations.
+ The accessors are:
+ TI_TEMPLATE the template declaration associated to the specialization
+ TI_ARGS the arguments of the template specialization
+ TI_TYPEDEFS_NEEDING_ACCESS_CHECKING the vector of typedefs used in
+ the pattern of the template for which access check is needed at template
+ instantiation time. */
+DEFTREECODE (TEMPLATE_INFO, "template_info", tcc_exceptional, 0)
/*
Local variables: