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c006ed7b10
Moved sequences files to shared in order to allow the system to compile without the app sequence. Change-Id: Ia8349814a72776244acc41af964059f24e58cff0
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
#include "cache_context.h"
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#include "sequence.h"
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#include "sequence_store.h"
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#include "../shared/poincare_helpers.h"
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#include <poincare/serialization_helper.h>
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#include <cmath>
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using namespace Poincare;
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namespace Shared {
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template<typename T>
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CacheContext<T>::CacheContext(Context * parentContext) :
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ContextWithParent(parentContext),
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m_values{{NAN, NAN},{NAN, NAN},{NAN,NAN}}
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{
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}
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template<typename T>
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const Expression CacheContext<T>::expressionForSymbolAbstract(const SymbolAbstract & symbol, bool clone) {
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// [u|v|w](n(+1)?)
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if (symbol.type() == ExpressionNode::Type::Sequence) {
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Symbol s = const_cast<Symbol &>(static_cast<const Symbol &>(symbol));
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if (s.childAtIndex(0).type() == ExpressionNode::Type::Symbol) {
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return Float<T>::Builder(m_values[nameIndexForSymbol(s)][0]);
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} else if (s.childAtIndex(0).type() == ExpressionNode::Type::Addition) {
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return Float<T>::Builder(m_values[nameIndexForSymbol(s)][1]);
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} else {
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Sequence seq = m_sequenceContext->sequenceStore()->sequenceAtIndex(nameIndexForSymbol(s));
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// In case the sequence referenced is not defined, return NAN
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if (seq.fullName() == nullptr) {
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return Float<T>::Builder(NAN);
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}
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Expression rank = symbol.childAtIndex(0);
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if (rank.isNumber()) {
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return Float<T>::Builder(seq.valueAtRank<T>(rank.approximateToScalar<double>(this, Poincare::Preferences::ComplexFormat::Cartesian, Poincare::Preferences::AngleUnit::Radian), m_sequenceContext));
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} else {
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return Float<T>::Builder(NAN);
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}
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}
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}
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return ContextWithParent::expressionForSymbolAbstract(symbol, clone);
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}
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template<typename T>
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void CacheContext<T>::setValueForSymbol(T value, const Poincare::Symbol & symbol) {
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m_values[nameIndexForSymbol(symbol)][rankIndexForSymbol(symbol)] = value;
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}
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template<typename T>
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int CacheContext<T>::nameIndexForSymbol(const Poincare::Symbol & symbol) {
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assert(symbol.name()[0] >= 'u' && symbol.name()[0] <= 'w'); // [u|v|w]
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char name = symbol.name()[0];
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assert(name >= SequenceStore::k_sequenceNames[0][0] && name <= SequenceStore::k_sequenceNames[MaxNumberOfSequences-1][0]); // u, v or w
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return name - 'u';
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}
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template<typename T>
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int CacheContext<T>::rankIndexForSymbol(const Poincare::Symbol & symbol) {
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assert(strcmp(symbol.name()+1, "(n)") == 0 || strcmp(symbol.name()+1, "(n+1)") == 0); // u(n) or u(n+1)
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if (symbol.name()[3] == ')') { // (n)
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return 0;
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}
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// (n+1)
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return 1;
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}
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template class CacheContext<float>;
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template class CacheContext<double>;
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}
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