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Retro68/Rez/ResourceCompiler.h

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#ifndef RESOURCECOMPILER_H
#define RESOURCECOMPILER_H
#include "Expression.h"
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#include "ResourceDefinitions.h"
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class Field;
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class RezWorld;
class Diagnostic;
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class Subscripts
{
std::vector<int> subscripts;
public:
Subscripts();
~Subscripts();
void addSubscript(int x);
void popSubscript();
bool operator<(const Subscripts& other) const;
bool empty() const { return subscripts.empty(); }
};
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class BinaryOutput
{
protected:
int currentOffset;
std::vector<unsigned char> data;
std::vector<unsigned char> prePassData;
bool verboseFlag;
bool prePass;
public:
BinaryOutput();
void reset(bool prePass);
std::string resourceData();
void reserve(int nBits) { write(nBits, 0); }
void write(int nBits, int value);
int tell() { return currentOffset; }
int peek(int bitPos, int size);
bool isPrePass() { return prePass; }
};
class ResourceCompiler : public BinaryOutput
{
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RezWorld& world;
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TypeDefinitionPtr typeDefinition;
CompoundExprPtr body;
std::map<std::pair<std::string, Subscripts>, ExprPtr> labelValues;
std::map<std::pair<std::string, Subscripts>, int> arrayCounts;
std::map<std::string, int> curArrayIndices;
Field* currentField;
Subscripts currentSubscripts;
void beginArrayScope(std::string& arrayName, int index);
public:
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ResourceCompiler(RezWorld& world, TypeDefinitionPtr type, CompoundExprPtr body, bool verboseFlag);
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ExprPtr lookupIdentifier(std::string name, const Subscripts& sub = Subscripts());
void defineLabel(const std::string& name);
void compile();
int getArrayCount(const std::string& arrayName);
int getArrayIndex(const std::string& arrayName);
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class FieldScope
{
ResourceCompiler *compiler;
public:
FieldScope(ResourceCompiler* compiler, Field *field)
: compiler(compiler) { compiler->currentField = field; }
~FieldScope() { compiler->currentField = nullptr; }
};
class ArrayScope
{
ResourceCompiler *compiler;
public:
ArrayScope(ResourceCompiler* compiler, std::string& arrayName, int index)
: compiler(compiler) { compiler->beginArrayScope(arrayName, index); }
~ArrayScope() { compiler->currentSubscripts.popSubscript(); }
};
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void problem(Diagnostic d);
};
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#endif // RESOURCECOMPILER_H