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896edb1d0a
Various places use xp.add_text (pp_formatted_text (&pp)) Add a helper function for this. No functional change intended. gcc/ChangeLog: * diagnostic-path-output.cc: Use xml::printer::add_text_from_pp. * diagnostic-show-locus.cc: Likewise. * xml-printer.h (xml::printer::add_text_from_pp): New decl. * xml.cc (xml::node_with_children::add_text_from_pp): New. (xml::printer::add_text_from_pp): New. * xml.h (xml::node_with_children::add_text_from_pp): New decl. Signed-off-by: David Malcolm <dmalcolm@redhat.com>
117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
/* Classes for creating XML trees by appending.
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Copyright (C) 2025 Free Software Foundation, Inc.
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Contributed by David Malcolm <dmalcolm@redhat.com>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_XML_PRINTER_H
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#define GCC_XML_PRINTER_H
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namespace xml {
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class node;
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class element;
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/* A class for creating XML trees by appending to an insertion
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point, with a stack of open tags. */
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class printer
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{
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public:
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printer (element &insertion_point, bool check_popped_tags = true);
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void push_tag (std::string name,
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bool preserve_whitespace = false);
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void push_tag_with_class (std::string name,
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std::string class_,
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bool preserve_whitespace = false);
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void pop_tag (const char *expected_name);
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void set_attr (const char *name, std::string value);
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void add_text (std::string text);
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void add_text_from_pp (pretty_printer &pp);
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void add_raw (std::string text);
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void push_element (std::unique_ptr<element> new_element);
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void append (std::unique_ptr<node> new_node);
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element *get_insertion_point () const;
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size_t get_num_open_tags () const { return m_open_tags.size (); }
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void DEBUG_FUNCTION dump () const;
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private:
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// borrowed ptrs:
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std::vector<element *> m_open_tags;
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bool m_check_popped_tags;
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};
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/* RAII class for ensuring that the tags nested correctly.
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Verify that within an instance's lifetime that any pushes
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to the printer's insertion point have been popped by the end. */
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class auto_check_tag_nesting
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{
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public:
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auto_check_tag_nesting (const printer &xp)
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: m_xp (xp),
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m_initial_insertion_element (xp.get_insertion_point ())
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{
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}
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~auto_check_tag_nesting ()
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{
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/* Verify that we didn't pop too many tags within the printer,
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or leave any tags open. */
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gcc_assert (m_initial_insertion_element == m_xp.get_insertion_point ());
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}
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private:
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const printer &m_xp;
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const element *m_initial_insertion_element;
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};
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// RAII for push/pop element on xml::printer
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class auto_print_element
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{
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public:
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auto_print_element (printer &printer,
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std::string name,
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bool preserve_whitespace = false)
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: m_printer (printer),
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m_name (std::move (name))
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{
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m_printer.push_tag (m_name, preserve_whitespace);
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}
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~auto_print_element ()
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{
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m_printer.pop_tag (m_name.c_str ());
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}
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private:
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printer &m_printer;
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std::string m_name;
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};
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} // namespace xml
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#endif /* GCC_XML_PRINTER_H. */
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