148 lines
3.4 KiB
C++
148 lines
3.4 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2025, Parallax Software, Inc.
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//
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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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//
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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, see <https://www.gnu.org/licenses/>.
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//
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// The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software.
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//
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// Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// This notice may not be removed or altered from any source distribution.
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#include "FuncExpr.hh"
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#include <iostream>
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#include <sstream>
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#include "Report.hh"
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#include "StringUtil.hh"
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#include "Liberty.hh"
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#include "LibExprReaderPvt.hh"
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#include "LibExprScanner.hh"
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namespace sta {
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FuncExpr *
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parseFuncExpr(const char *func,
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LibertyCell *cell,
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const char *error_msg,
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Report *report)
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{
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if (func != nullptr && func[0] != '\0') {
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std::string func1(func);
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std::istringstream stream(func);
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LibExprReader reader(func, cell, error_msg, report);
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LibExprScanner scanner(stream);
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LibExprParse parser(&scanner, &reader);
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parser.parse();
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FuncExpr *expr = reader.result();
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return expr;
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}
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else
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return nullptr;
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}
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LibExprReader::LibExprReader(const char *func,
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LibertyCell *cell,
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const char *error_msg,
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Report *report) :
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func_(func),
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cell_(cell),
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error_msg_(error_msg),
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report_(report),
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result_(nullptr)
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{
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}
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// defined in LibertyReader.cc
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LibertyPort *
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libertyReaderFindPort(LibertyCell *cell,
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const char *port_name);
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FuncExpr *
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LibExprReader::makeFuncExprPort(const char *port_name)
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{
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FuncExpr *expr = nullptr;
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LibertyPort *port = libertyReaderFindPort(cell_, port_name);
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if (port)
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expr = FuncExpr::makePort(port);
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else
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report_->warn(1130, "%s references unknown port %s.",
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error_msg_, port_name);
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stringDelete(port_name);
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return expr;
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}
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FuncExpr *
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LibExprReader::makeFuncExprNot(FuncExpr *arg)
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{
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if (arg)
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return FuncExpr::makeNot(arg);
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else
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return nullptr;
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}
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FuncExpr *
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LibExprReader::makeFuncExprXor(FuncExpr *arg1,
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FuncExpr *arg2)
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{
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if (arg1 && arg2)
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return FuncExpr::makeXor(arg1, arg2);
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else
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return nullptr;
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}
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FuncExpr *
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LibExprReader::makeFuncExprAnd(FuncExpr *arg1,
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FuncExpr *arg2)
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{
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if (arg1 && arg2)
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return FuncExpr::makeAnd(arg1, arg2);
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else
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return nullptr;
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}
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FuncExpr *
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LibExprReader::makeFuncExprOr(FuncExpr *arg1,
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FuncExpr *arg2)
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{
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if (arg1 && arg2)
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return FuncExpr::makeOr(arg1, arg2);
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else
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return nullptr;
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}
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void
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LibExprReader::setResult(FuncExpr *result)
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{
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result_ = result;
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}
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void
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LibExprReader::parseError(const char *msg)
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{
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report_->error(1131, "%s %s.", error_msg_, msg);
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}
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////////////////////////////////////////////////////////////////
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LibExprScanner::LibExprScanner(std::istringstream &stream) :
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yyFlexLexer(&stream)
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{
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}
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} // namespace
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