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patterns: Fixed eval_depth default and preprocessor errors

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This commit is contained in:
WerWolv 2021-03-15 08:11:19 +01:00
parent 2326e090af
commit f34b946ea9
5 changed files with 26 additions and 20 deletions
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2
plugins/libimhex/include/hex/lang/evaluator.hpp
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@ -48,7 +48,7 @@ namespace hex::lang {
std::vector<std::vector<PatternData*>*> m_currMembers;
LogConsole m_console;
u32 m_recursionLimit = 16;
u32 m_recursionLimit;
u32 m_currRecursionDepth;

6
plugins/libimhex/include/hex/lang/pattern_language.hpp
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@ -39,9 +39,9 @@ namespace hex::lang {
Validator *m_validator;
Evaluator *m_evaluator;
prv::Provider *m_provider;
std::endian m_defaultEndian;
u32 m_recursionLimit;
prv::Provider *m_provider = nullptr;
std::endian m_defaultEndian = std::endian::native;
u32 m_recursionLimit = 32;
std::optional<std::pair<u32, std::string>> m_currError;
};

4
plugins/libimhex/include/hex/lang/preprocessor.hpp
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@ -32,8 +32,8 @@ namespace hex::lang {
std::unordered_map<std::string, std::function<bool(std::string)>> m_pragmaHandlers;
std::set<std::pair<std::string, std::string>> m_defines;
std::set<std::pair<std::string, std::string>> m_pragmas;
std::set<std::tuple<std::string, std::string, u32>> m_defines;
std::set<std::tuple<std::string, std::string, u32>> m_pragmas;
std::pair<u32, std::string> m_error;
};

18
plugins/libimhex/source/lang/evaluator.cpp
View File

@ -439,11 +439,17 @@ namespace hex::lang {
this->m_currMembers.push_back(&memberPatterns);
SCOPE_EXIT( this->m_currMembers.pop_back(); );
this->m_currRecursionDepth++;
if (this->m_currRecursionDepth > this->m_recursionLimit)
this->getConsole().abortEvaluation(hex::format("evaluation depth exceeds maximum of {0}. Use #pragma eval_depth <depth> to increase the maximum", this->m_recursionLimit));
auto startOffset = this->m_currOffset;
for (auto &member : node->getMembers()) {
this->evaluateMember(member, memberPatterns, true);
}
this->m_currRecursionDepth--;
return this->evaluateAttributes(node, new PatternDataStruct(startOffset, this->m_currOffset - startOffset, memberPatterns));
}
@ -455,10 +461,16 @@ namespace hex::lang {
auto startOffset = this->m_currOffset;
this->m_currRecursionDepth++;
if (this->m_currRecursionDepth > this->m_recursionLimit)
this->getConsole().abortEvaluation(hex::format("evaluation depth exceeds maximum of {0}. Use #pragma eval_depth <depth> to increase the maximum", this->m_recursionLimit));
for (auto &member : node->getMembers()) {
this->evaluateMember(member, memberPatterns, false);
}
this->m_currRecursionDepth--;
size_t size = 0;
for (const auto &pattern : memberPatterns)
size = std::max(size, pattern->getSize());
@ -538,10 +550,6 @@ namespace hex::lang {
PatternData *pattern;
this->m_currRecursionDepth++;
if (this->m_currRecursionDepth > this->m_recursionLimit)
this->getConsole().abortEvaluation(hex::format("evaluation depth exceeds maximum of {0}. Use #pragma eval_depth <depth> to increase the maximum", this->m_recursionLimit));
if (auto builtinTypeNode = dynamic_cast<ASTNodeBuiltinType*>(type); builtinTypeNode != nullptr)
return this->evaluateBuiltinType(builtinTypeNode);
else if (auto typeDeclNode = dynamic_cast<ASTNodeTypeDecl*>(type); typeDeclNode != nullptr)
@ -557,8 +565,6 @@ namespace hex::lang {
else
this->getConsole().abortEvaluation("type could not be evaluated");
this->m_currRecursionDepth--;
if (!node->getName().empty())
pattern->setTypeName(node->getName().data());

16
plugins/libimhex/source/lang/preprocessor.cpp
View File

@ -119,7 +119,7 @@ namespace hex::lang {
if (replaceValue.empty())
throwPreprocessorError("no value given in #define directive", lineNumber);
this->m_defines.emplace(defineName, replaceValue);
this->m_defines.emplace(defineName, replaceValue, lineNumber);
} else if (code.substr(offset, 6) == "pragma") {
offset += 6;
@ -151,7 +151,7 @@ namespace hex::lang {
if (pragmaValue.empty())
throwPreprocessorError("missing value in #pragma directive", lineNumber);
this->m_pragmas.emplace(pragmaKey, pragmaValue);
this->m_pragmas.emplace(pragmaKey, pragmaValue, lineNumber);
} else
throwPreprocessorError("unknown preprocessor directive", lineNumber);
} else if (code.substr(offset, 2) == "//") {
@ -181,13 +181,13 @@ namespace hex::lang {
if (initialRun) {
// Apply defines
std::vector<std::pair<std::string, std::string>> sortedDefines;
std::vector<std::tuple<std::string, std::string, u32>> sortedDefines;
std::copy(this->m_defines.begin(), this->m_defines.end(), std::back_inserter(sortedDefines));
std::sort(sortedDefines.begin(), sortedDefines.end(), [](const auto &left, const auto &right) {
return left.first.size() > right.first.size();
return std::get<0>(left).size() > std::get<0>(right).size();
});
for (const auto &[define, value] : sortedDefines) {
for (const auto &[define, value, defineLine] : sortedDefines) {
s32 index = 0;
while((index = output.find(define, index)) != std::string::npos) {
output.replace(index, define.length(), value);
@ -196,12 +196,12 @@ namespace hex::lang {
}
// Handle pragmas
for (const auto &[type, value] : this->m_pragmas) {
for (const auto &[type, value, pragmaLine] : this->m_pragmas) {
if (this->m_pragmaHandlers.contains(type)) {
if (!this->m_pragmaHandlers[type](value))
throwPreprocessorError(hex::format("invalid value provided to '{0}' #pragma directive", type.c_str()), lineNumber);
throwPreprocessorError(hex::format("invalid value provided to '{0}' #pragma directive", type.c_str()), pragmaLine);
} else
throwPreprocessorError(hex::format("no #pragma handler registered for type {0}", type.c_str()), lineNumber);
throwPreprocessorError(hex::format("no #pragma handler registered for type {0}", type.c_str()), pragmaLine);
}
}
} catch (PreprocessorError &e) {