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ValueFlow: extracted valueFlowSameExpressions() into separate file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /* | ||
| * Cppcheck - A tool for static C/C++ code analysis | ||
| * Copyright (C) 2007-2024 Cppcheck team. | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| #include "vf_sameexpressions.h" | ||
|
|
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| #include "astutils.h" | ||
| #include "token.h" | ||
| #include "tokenlist.h" | ||
| #include "vfvalue.h" | ||
|
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| #include "vf_settokenvalue.h" | ||
|
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| #include <utility> | ||
|
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| namespace ValueFlow | ||
| { | ||
| void analyzeSameExpressions(TokenList &tokenlist, const Settings& settings) | ||
| { | ||
| for (Token *tok = tokenlist.front(); tok; tok = tok->next()) { | ||
| if (tok->hasKnownIntValue()) | ||
| continue; | ||
|
|
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| if (!tok->astOperand1() || !tok->astOperand2()) | ||
| continue; | ||
|
|
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| if (tok->astOperand1()->isLiteral() || tok->astOperand2()->isLiteral()) | ||
| continue; | ||
|
|
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| if (!astIsIntegral(tok->astOperand1(), false) && !astIsIntegral(tok->astOperand2(), false)) | ||
| continue; | ||
|
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| Value val; | ||
|
|
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| if (Token::Match(tok, "==|>=|<=|/")) { | ||
| val = ValueFlow::Value(1); | ||
| val.setKnown(); | ||
| } | ||
|
|
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| if (Token::Match(tok, "!=|>|<|%|-")) { | ||
| val = ValueFlow::Value(0); | ||
| val.setKnown(); | ||
| } | ||
|
|
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| if (!val.isKnown()) | ||
| continue; | ||
|
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| if (isSameExpression(false, tok->astOperand1(), tok->astOperand2(), settings, true, true, &val.errorPath)) { | ||
| setTokenValue(tok, std::move(val), settings); | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| /* | ||
| * Cppcheck - A tool for static C/C++ code analysis | ||
| * Copyright (C) 2007-2024 Cppcheck team. | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
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| #ifndef vfSameExpressionsH | ||
| #define vfSameExpressionsH | ||
|
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| class TokenList; | ||
| class Settings; | ||
|
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| namespace ValueFlow | ||
| { | ||
| void analyzeSameExpressions(TokenList &tokenlist, const Settings& settings); | ||
| } | ||
|
|
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| #endif // vfSameExpressionsH |
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