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191 lines
7.7 KiB
C++
191 lines
7.7 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
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//*************************************************************************
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// DESCRIPTION: Verilator: Error handling
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//
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// Code available from: http://www.veripool.org/verilator
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//
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//*************************************************************************
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//
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// Copyright 2003-2019 by Wilson Snyder. This program is free software; you can
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// redistribute it and/or modify it under the terms of either the GNU
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// Lesser General Public License Version 3 or the Perl Artistic License
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// Version 2.0.
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//
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// Verilator 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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//*************************************************************************
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#ifndef _V3FileLine_H_
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#define _V3FileLine_H_ 1
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#include "config_build.h"
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#include "verilatedos.h"
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#include "V3Error.h"
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#include "V3LangCode.h"
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#include <sstream>
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#include <bitset>
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#include <map>
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#include <set>
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#include <deque>
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//######################################################################
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class FileLine;
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//! Singleton class with tables of per-file data.
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//! This singleton class contains tables of data that are unchanging in each
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//! source file (each with its own unique filename number).
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class FileLineSingleton {
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// TYPES
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typedef std::map<string,int> FileNameNumMap;
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typedef std::map<string,V3LangCode> FileLangNumMap;
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// MEMBERS
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FileNameNumMap m_namemap; // filenameno for each filename
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std::deque<string> m_names; // filename text for each filenameno
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std::deque<V3LangCode> m_languages; // language for each filenameno
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// COSNTRUCTORS
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FileLineSingleton() { }
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~FileLineSingleton() { }
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protected:
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friend class FileLine;
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// METHODS
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int nameToNumber(const string& filename);
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const string numberToName(int filenameno) const { return m_names[filenameno]; }
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const V3LangCode numberToLang(int filenameno) const { return m_languages[filenameno]; }
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void numberToLang(int filenameno, const V3LangCode& l) { m_languages[filenameno] = l; }
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void clear() { m_namemap.clear(); m_names.clear(); m_languages.clear(); }
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void fileNameNumMapDumpXml(std::ostream& os);
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static const string filenameLetters(int fileno);
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};
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//! File and line number of an object, mostly for error reporting
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//! This class is instantiated for every source code line (potentially
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//! millions). To save space, per-file information (e.g. filename, source
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//! language is held in tables in the FileLineSingleton class.
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class FileLine {
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int m_lineno;
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int m_filenameno;
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std::bitset<V3ErrorCode::_ENUM_MAX> m_warnOn;
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private:
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struct EmptySecret {};
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inline static FileLineSingleton& singleton() {
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static FileLineSingleton s;
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return s;
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}
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inline static FileLine& defaultFileLine() {
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static FileLine* defFilelinep = new FileLine(FileLine::EmptySecret());
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return *defFilelinep;
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}
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protected:
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// User routines should never need to change line numbers
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// We are storing pointers, so we CAN'T change them after initial reading.
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friend class FileLineSingleton;
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friend class V3ParseImp;
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friend class V3PreLex;
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friend class V3PreProcImp;
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friend class V3PreShellImp;
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void lineno(int num) { m_lineno = num; }
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void language(V3LangCode lang) { singleton().numberToLang(m_filenameno, lang); }
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void filename(const string& name) { m_filenameno = singleton().nameToNumber(name); }
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void lineDirective(const char* textp, int& enterExitRef);
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void linenoInc() { m_lineno++; }
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void linenoIncInPlace() { m_lineno++; }
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FileLine* copyOrSameFileLine();
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public:
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FileLine(const string& filename, int lineno) {
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m_lineno = lineno;
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m_filenameno = singleton().nameToNumber(filename);
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m_warnOn = defaultFileLine().m_warnOn;
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}
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explicit FileLine(FileLine* fromp) {
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m_lineno = fromp->m_lineno;
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m_filenameno = fromp->m_filenameno;
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m_warnOn = fromp->m_warnOn;
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}
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explicit FileLine(EmptySecret);
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~FileLine() { }
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FileLine* create(const string& filename, int lineno) { return new FileLine(filename, lineno); }
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FileLine* create(int lineno) { return create(filename(), lineno); }
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static void deleteAllRemaining();
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#ifdef VL_LEAK_CHECKS
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static void* operator new(size_t size);
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static void operator delete(void* obj, size_t size);
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#endif
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int lineno() const { return m_lineno; }
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V3LangCode language() const { return singleton().numberToLang(m_filenameno); }
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string ascii() const;
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const string filename() const { return singleton().numberToName(m_filenameno); }
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bool filenameIsGlobal() const { return (filename() == commandLineFilename()
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|| filename() == internalDefineFilename()); }
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const string filenameLetters() const { return singleton().filenameLetters(m_filenameno); }
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const string filebasename() const;
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const string filebasenameNoExt() const;
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const string profileFuncname() const;
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const string xml() const { return "fl=\""+filenameLetters()+cvtToStr(lineno())+"\""; }
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string lineDirectiveStrg(int enterExit) const;
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// Turn on/off warning messages on this line.
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void warnOn(V3ErrorCode code, bool flag) { m_warnOn.set(code, flag); }
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void warnOff(V3ErrorCode code, bool flag) { warnOn(code, !flag); }
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bool warnOff(const string& msg, bool flag); // Returns 1 if ok
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bool warnIsOff(V3ErrorCode code) const;
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void warnLintOff(bool flag);
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void warnStyleOff(bool flag);
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void warnStateFrom(const FileLine& from) { m_warnOn = from.m_warnOn; }
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void warnResetDefault() { warnStateFrom(defaultFileLine()); }
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// Specific flag ACCESSORS/METHODS
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bool coverageOn() const { return m_warnOn.test(V3ErrorCode::I_COVERAGE); }
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void coverageOn(bool flag) { warnOn(V3ErrorCode::I_COVERAGE, flag); }
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bool tracingOn() const { return m_warnOn.test(V3ErrorCode::I_TRACING); }
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void tracingOn(bool flag) { warnOn(V3ErrorCode::I_TRACING, flag); }
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// METHODS - Global
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static string commandLineFilename() { return "COMMAND_LINE"; }
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static string internalDefineFilename() { return "INTERNAL_VERILATOR_DEFINE"; }
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static void globalWarnLintOff(bool flag) {
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defaultFileLine().warnLintOff(flag); }
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static void globalWarnStyleOff(bool flag) {
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defaultFileLine().warnStyleOff(flag); }
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static void globalWarnOff(V3ErrorCode code, bool flag) {
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defaultFileLine().warnOff(code, flag); }
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static bool globalWarnOff(const string& code, bool flag) {
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return defaultFileLine().warnOff(code, flag); }
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static void fileNameNumMapDumpXml(std::ostream& os) {
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singleton().fileNameNumMapDumpXml(os); }
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// METHODS - Called from netlist
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// Merge warning disables from another fileline
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void modifyStateInherit(const FileLine* fromp);
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// Change the current fileline due to actions discovered after parsing
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// and may have side effects on other nodes sharing this FileLine.
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// Use only when this is intended
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void modifyWarnOff(V3ErrorCode code, bool flag) { warnOff(code, flag); }
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// OPERATORS
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void v3errorEnd(std::ostringstream& str);
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void v3errorEndFatal(std::ostringstream& str);
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string warnMore() const;
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inline bool operator==(FileLine rhs) const {
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return (m_lineno==rhs.m_lineno && m_filenameno==rhs.m_filenameno
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&& m_warnOn==rhs.m_warnOn);
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}
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private:
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void v3errorEndFatalGuts(std::ostringstream& str);
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};
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std::ostream& operator<<(std::ostream& os, FileLine* fileline);
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inline void FileLine::v3errorEndFatal(std::ostringstream& str) {
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v3errorEnd(str); assert(0); VL_UNREACHABLE
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}
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#endif // Guard
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