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| Next: <a href="Adding-new-DECL-node-types.html#Adding-new-DECL-node-types" accesskey="n" rel="next">Adding new DECL node types</a>, Up: <a href="Internal-structure.html#Internal-structure" accesskey="u" rel="up">Internal structure</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="Current-structure-hierarchy-1"></a> |
| <h4 class="subsubsection">10.4.2.1 Current structure hierarchy</h4> |
| |
| <dl compact="compact"> |
| <dt><code>struct tree_decl_minimal</code></dt> |
| <dd><p>This is the minimal structure to inherit from in order for common |
| <code>DECL</code> macros to work. The fields it contains are a unique ID, |
| source location, context, and name. |
| </p> |
| </dd> |
| <dt><code>struct tree_decl_common</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_minimal</code>. It |
| contains fields that most <code>DECL</code> nodes need, such as a field to |
| store alignment, machine mode, size, and attributes. |
| </p> |
| </dd> |
| <dt><code>struct tree_field_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_common</code>. It is |
| used to represent <code>FIELD_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_label_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_common</code>. It is |
| used to represent <code>LABEL_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_translation_unit_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_common</code>. It is |
| used to represent <code>TRANSLATION_UNIT_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_decl_with_rtl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_common</code>. It |
| contains a field to store the low-level RTL associated with a |
| <code>DECL</code> node. |
| </p> |
| </dd> |
| <dt><code>struct tree_result_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It is |
| used to represent <code>RESULT_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_const_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It is |
| used to represent <code>CONST_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_parm_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It is |
| used to represent <code>PARM_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_decl_with_vis</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_with_rtl</code>. It |
| contains fields necessary to store visibility information, as well as |
| a section name and assembler name. |
| </p> |
| </dd> |
| <dt><code>struct tree_var_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_with_vis</code>. It is |
| used to represent <code>VAR_DECL</code>. |
| </p> |
| </dd> |
| <dt><code>struct tree_function_decl</code></dt> |
| <dd><p>This structure inherits from <code>struct tree_decl_with_vis</code>. It is |
| used to represent <code>FUNCTION_DECL</code>. |
| </p> |
| </dd> |
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