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132 lines
4.7 KiB
Modula-2
132 lines
4.7 KiB
Modula-2
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/* Type codes for GDB.
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Copyright (C) 1992-2022 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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OP (TYPE_CODE_PTR) /**< Pointer type */
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/* * Array type with lower & upper bounds.
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Regardless of the language, GDB represents multidimensional
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array types the way C does: as arrays of arrays. So an
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instance of a GDB array type T can always be seen as a series
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of instances of T->target_type () laid out sequentially in
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memory.
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Row-major languages like C lay out multi-dimensional arrays so
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that incrementing the rightmost index in a subscripting
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expression results in the smallest change in the address of the
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element referred to. Column-major languages like Fortran lay
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them out so that incrementing the leftmost index results in the
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smallest change.
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This means that, in column-major languages, working our way
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from type to target type corresponds to working through indices
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from right to left, not left to right. */
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OP (TYPE_CODE_ARRAY)
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OP (TYPE_CODE_STRUCT) /**< C struct or Pascal record */
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OP (TYPE_CODE_UNION) /**< C union or Pascal variant part */
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OP (TYPE_CODE_ENUM) /**< Enumeration type */
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OP (TYPE_CODE_FLAGS) /**< Bit flags type */
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OP (TYPE_CODE_FUNC) /**< Function type */
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OP (TYPE_CODE_INT) /**< Integer type */
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/* * Floating type. This is *NOT* a complex type. */
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OP (TYPE_CODE_FLT)
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/* * Void type. The length field specifies the length (probably
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always one) which is used in pointer arithmetic involving
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pointers to this type, but actually dereferencing such a
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pointer is invalid; a void type has no length and no actual
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representation in memory or registers. A pointer to a void
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type is a generic pointer. */
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OP (TYPE_CODE_VOID)
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OP (TYPE_CODE_SET) /**< Pascal sets */
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OP (TYPE_CODE_RANGE) /**< Range (integers within spec'd bounds). */
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/* * A string type which is like an array of character but prints
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differently. It does not contain a length field as Pascal
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strings (for many Pascals, anyway) do; if we want to deal with
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such strings, we should use a new type code. */
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OP (TYPE_CODE_STRING)
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/* * Unknown type. The length field is valid if we were able to
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deduce that much about the type, or 0 if we don't even know
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that. */
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OP (TYPE_CODE_ERROR)
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/* C++ */
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OP (TYPE_CODE_METHOD) /**< Method type */
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/* * Pointer-to-member-function type. This describes how to access a
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particular member function of a class (possibly a virtual
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member function). The representation may vary between different
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C++ ABIs. */
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OP (TYPE_CODE_METHODPTR)
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/* * Pointer-to-member type. This is the offset within a class to
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some particular data member. The only currently supported
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representation uses an unbiased offset, with -1 representing
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NULL; this is used by the Itanium C++ ABI (used by GCC on all
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platforms). */
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OP (TYPE_CODE_MEMBERPTR)
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OP (TYPE_CODE_REF) /**< C++ Reference types */
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OP (TYPE_CODE_RVALUE_REF) /**< C++ rvalue reference types */
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OP (TYPE_CODE_CHAR) /**< *real* character type */
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/* * Boolean type. 0 is false, 1 is true, and other values are
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non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
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OP (TYPE_CODE_BOOL)
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/* Fortran */
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OP (TYPE_CODE_COMPLEX) /**< Complex float */
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OP (TYPE_CODE_TYPEDEF)
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OP (TYPE_CODE_NAMESPACE) /**< C++ namespace. */
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OP (TYPE_CODE_DECFLOAT) /**< Decimal floating point. */
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OP (TYPE_CODE_MODULE) /**< Fortran module. */
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/* * Internal function type. */
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OP (TYPE_CODE_INTERNAL_FUNCTION)
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/* * Methods implemented in extension languages. */
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OP (TYPE_CODE_XMETHOD)
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/* * Fixed Point type. */
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OP (TYPE_CODE_FIXED_POINT)
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/* * Fortran namelist is a group of variables or arrays that can be
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read or written.
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Namelist syntax: NAMELIST / groupname / namelist_items ...
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NAMELIST statement assign a group name to a collection of variables
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called as namelist items. The namelist items can be of any data type
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and can be variables or arrays.
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Compiler emit DW_TAG_namelist for group name and DW_TAG_namelist_item
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for each of the namelist items. GDB process these namelist dies
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and print namelist variables during print and ptype commands. */
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OP (TYPE_CODE_NAMELIST)
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