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https://github.com/steveicarus/iverilog.git
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Lars-Peter Clausen
5f479cbad4
Several source and netlist objects inherit `LineInfo` while separately storing the lexical position associated with the same source location. This requires callers to copy the file, line, and lexical position independently. Add the lexical position to `LineInfo`. Have `set_line()` initialize it when it is unset, so new objects inherit the complete source location while later diagnostic location updates preserve their established declaration order. Initialize the field to `UINT_MAX` so zero remains available as a valid scanner position and missing initialization is distinguishable. Have `FILE_NAME()` preserve a more precise identifier position. Remove constructor parameters that duplicate the position supplied through `FILE_NAME()`. Use the shared field for identifiers, wires, events, event triggers, nets, and elaborated events. Assign static class property nets their declaration location since they previously relied on the standalone `NetNet` position defaulting to zero. Signed-off-by: Lars-Peter Clausen <[email protected]>
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
#ifndef IVL_LineInfo_H
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#define IVL_LineInfo_H
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/*
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* Copyright (c) 1999-2021 Stephen Williams ([email protected])
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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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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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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# include "StringHeap.h"
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# include <climits>
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# include <string>
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/*
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* This class holds line information for an internal object.
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*
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* Note that the file names are C-style strings that are allocated by
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* the lexor (which parses the line directives) and are never
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* deallocated. We can therefore safely store the pointer and never
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* delete the string, even if LineInfo objects are destroyed.
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*/
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class LineInfo {
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public:
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LineInfo();
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virtual ~LineInfo();
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// Get a fully formatted file/lineno
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std::string get_fileline() const;
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// Set the source location from another LineInfo object.
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void set_line(const LineInfo&that);
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// Access parts of LineInfo data
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void set_file(perm_string f);
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void set_lineno(unsigned n);
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void lexical_pos(unsigned int n);
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perm_string get_file() const { return file_; }
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unsigned get_lineno() const { return lineno_; }
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unsigned int lexical_pos() const { return lexical_pos_; }
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private:
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perm_string file_;
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unsigned lineno_;
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unsigned int lexical_pos_ = UINT_MAX;
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};
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#endif /* IVL_LineInfo_H */
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