X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gcc%2Fcp%2Fcp-tree.def;h=a43fa8253070a6ae451c39e6928159a6f58a18b7;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=3854525611413c4764ab482bdbc65f2a732027fc;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/cp/cp-tree.def b/gcc/cp/cp-tree.def index 38545256..a43fa825 100644 --- a/gcc/cp/cp-tree.def +++ b/gcc/cp/cp-tree.def @@ -1,110 +1,138 @@ /* 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, - 1999, 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998, 2003, 2004, 2005, + 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 + Free Software Foundation, Inc. Hacked by Michael Tiemann (tiemann@cygnus.com) -This file is part of GNU CC. +This file is part of GCC. -GNU CC is free software; you can redistribute it and/or modify +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. -GNU CC is distributed in the hope that it will be useful, +GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - - -/* Reference to the contents of an offset - (a value whose type is an OFFSET_TYPE). - Operand 0 is the object within which the offset is taken. - Operand 1 is the offset. The language independent OFFSET_REF - just won't work for us. */ -DEFTREECODE (OFFSET_REF, "offset_ref", 'r', 2) +along with GCC; see the file COPYING3. If not see +. */ + + +/* 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 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 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. */ +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', 2) +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) /* 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) +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, + TEMPLATE_DECL, OVERLOAD, or TEMPLATE_ID_EXPR corresponding to the + 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. + + 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", 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 // Index 0, Level 1. struct S { template // 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 @@ -118,149 +146,282 @@ DEFTREECODE (TEMPLATE_DECL, "template_decl", 'd', 0) struct S { template // 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', - /* The addition of (sizeof(tree) - 1) in the next expression - is to handle the case when padding pushes us past an even - multiple of sizeof(tree). */ - /* We used to try to calculate this using - 1+3*sizeof(HOST_WIDE_INT), but that fails if alignment - makes it bigger. */ - ((sizeof (template_parm_index) - sizeof (struct tree_common)) - + sizeof (tree) - 1) - / sizeof (tree)) - -/* 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, + It is used without template arguments like TT in C, 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. - 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. + 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. 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 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 directive. The operand is USING_STMT_NAMESPACE. */ -DEFTREECODE (USING_STMT, "using_directive", 'e', 1) +/* A using directive. The operand is USING_STMT_NAMESPACE. */ +DEFTREECODE (USING_STMT, "using_directive", tcc_statement, 1) -/* An un-parsed default argument. Looks like an IDENTIFIER_NODE. */ -DEFTREECODE (DEFAULT_ARG, "default_arg", 'x', 2) +/* 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) /* A template-id, like foo. 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. */ -DEFTREECODE (TEMPLATE_ID_EXPR, "template_id_expr", 'e', 2) - -/* An association between name and entity. Parameters are the scope - and the (non-type) value. TREE_TYPE indicates the type bound to - the name. */ -DEFTREECODE (CPLUS_BINDING, "binding", 'x', 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', 1) +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', 1) +/* 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) - -/* A SUBOBJECT statement marks the point at which a sub-object is - fully constructed. After this point, the SUBOBJECT_CLEANUP must be - run if an exception is thrown before the end of the enclosing - function. */ -DEFTREECODE (SUBOBJECT, "subobject", 'e', 1) -/* An CTOR_STMT marks the beginning (if CTOR_BEGIN_P holds) or end of - a constructor (if CTOR_END_P) holds. At the end of a constructor, - the cleanups associated with any SUBOBJECT_CLEANUPS need no longer - be run. */ -DEFTREECODE (CTOR_STMT, "ctor_stmt", 'e', 0) +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 (DOTSTAR_EXPR, "dotstar_expr", tcc_expression, 2) +DEFTREECODE (TYPEID_EXPR, "typeid_expr", tcc_expression, 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', 2) -DEFTREECODE (RETURN_INIT, "return_init", 'e', 2) -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) - -/* And some codes for expressing conversions for overload resolution. */ - -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) +DEFTREECODE (MUST_NOT_THROW_EXPR, "must_not_throw_expr", tcc_expression, 1) + +/* 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, 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, 3) + +/* 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, 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 and SWITCH_STMT_TYPE, respectively. */ +DEFTREECODE (SWITCH_STMT, "switch_stmt", tcc_statement, 3) + +/* 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) + +/* 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 + class tuple { ... }; + + tuple t; + + Values is a (template) parameter pack. When tuple is instantiated, the Values parameter pack is instantiated + with the argument pack . 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 + struct tied : tuple { + // ... + }; + + The derivation from tuple contains a TYPE_PACK_EXPANSION for the + template arguments. Its EXPR_PACK_EXPANSION 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, 1) + +/* 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) + +/* 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. */ +DEFTREECODE (DECLTYPE_TYPE, "decltype_type", tcc_type, 0) /* Local variables: