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#ifndef LLMR_STYLE_FILTER_EXPRESSION_PRIVATE
#define LLMR_STYLE_FILTER_EXPRESSION_PRIVATE
#include "filter_expression.hpp"
namespace llmr {
template <typename Extractor>
inline bool FilterComparison::compare(const Extractor &extractor) const {
const std::vector<Value> values = extractor.getValues(field);
// All instances are ANDed together.
for (const Instance &instance : instances) {
if (!instance.compare(values)) {
return false;
}
}
return true;
}
template <typename Extractor>
bool FilterExpression::compare(const Extractor &extractor) const {
if (type != GeometryType::Any && extractor.getType() != type && extractor.getType() != GeometryType::Any) {
return false;
}
switch (op) {
case Operator::And:
for (const FilterComparison &comparison : comparisons) {
if (!comparison.compare(extractor)) {
return false;
}
}
for (const FilterExpression &expression: expressions) {
if (!expression.compare(extractor)) {
return false;
}
}
return true;
case Operator::Or:
for (const FilterComparison &comparison : comparisons) {
if (comparison.compare(extractor)) {
return true;
}
}
for (const FilterExpression &expression: expressions) {
if (expression.compare(extractor)) {
return true;
}
}
return false;
case Operator::Xor: {
int count = 0;
for (const FilterComparison &comparison : comparisons) {
count += comparison.compare(extractor);
if (count > 1) {
return false;
}
}
for (const FilterExpression &expression: expressions) {
count += expression.compare(extractor);
if (count > 1) {
return false;
}
}
return count == 1;
}
case Operator::Nor:
for (const FilterComparison &comparison : comparisons) {
if (comparison.compare(extractor)) {
return false;
}
}
for (const FilterExpression &expression: expressions) {
if (expression.compare(extractor)) {
return false;
}
}
return true;
default:
return true;
}
}
}
#endif
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