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added context for standalone interpreter
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487a70388f
commit
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@ -188,7 +188,8 @@ endif()
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option(BUILD_MWINTERPRETER "build standalone Morrowind script code interpreter" ON)
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if (BUILD_MWINTERPRETER)
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set(TOOLS_MWINTERPRETER ${INTERPRETER} apps/mwinterpreter/main.cpp)
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set(TOOLS_MWINTERPRETER ${INTERPRETER} apps/mwinterpreter/main.cpp
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apps/mwinterpreter/context.cpp apps/mwinterpreter/context.hpp)
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add_executable(mwinterpreter ${TOOLS_MWINTERPRETER})
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endif()
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94
apps/mwinterpreter/context.cpp
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94
apps/mwinterpreter/context.cpp
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@ -0,0 +1,94 @@
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#include "context.hpp"
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#include <cassert>
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#include <fstream>
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#include <stdexcept>
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#include <iostream>
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namespace SAInterpreter
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{
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Context::Context (const std::string& filename)
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{
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std::ifstream file (filename.c_str());
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if (!file.is_open())
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throw std::runtime_error ("can't open locals file: " + filename);
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std::size_t shortSize, longSize, floatSize;
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file >> shortSize >> longSize >> floatSize;
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mShorts.resize (shortSize, 0);
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mLongs.resize (longSize, 0);
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mFloats.resize (floatSize, 0.0);
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std::size_t size = shortSize + longSize + floatSize;
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mNames.resize (size);
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for (std::size_t i=0; i<size; ++i)
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file >> mNames[i];
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}
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int Context::getLocalShort (int index) const
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{
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assert (index>=0);
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return mShorts.at (index);
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}
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int Context::getLocalLong (int index) const
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{
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assert (index>=0);
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return mLongs.at (index);
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}
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float Context::getLocalFloat (int index) const
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{
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assert (index>=0);
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return mFloats.at (index);
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}
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void Context::setLocalShort (int index, int value)
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{
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assert (index>=0);
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mShorts.at (index) = value;
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}
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void Context::setLocalLong (int index, int value)
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{
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assert (index>=0);
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mLongs.at (index) = value;
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}
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void Context::setLocalFloat (int index, float value)
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{
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assert (index>=0);
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mFloats.at (index) = value;
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}
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void Context::report()
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{
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std::size_t i = 0;
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std::cout << "local shorts:" << std::endl;
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for (std::vector<Interpreter::Type_Short>::const_iterator iter (mShorts.begin());
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iter!=mShorts.end(); ++iter)
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std::cout << mNames[i++] << ": " << *iter << std::endl;
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std::cout << "local longs:" << std::endl;
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for (std::vector<Interpreter::Type_Integer>::const_iterator iter (mLongs.begin());
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iter!=mLongs.end(); ++iter)
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std::cout << mNames[i++] << ": " << *iter << std::endl;
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std::cout << "local floats:" << std::endl;
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for (std::vector<Interpreter::Type_Float>::const_iterator iter (mFloats.begin());
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iter!=mFloats.end(); ++iter)
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std::cout << mNames[i++] << ": " << *iter << std::endl;
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}
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}
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43
apps/mwinterpreter/context.hpp
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43
apps/mwinterpreter/context.hpp
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@ -0,0 +1,43 @@
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#ifndef SAINTERPRETER_CONTEXT_H_INCLUDED
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#define SAINTERPRETER_CONTEXT_H_INCLUDED
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#include <string>
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#include <vector>
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#include <components/interpreter/context.hpp>
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#include <components/interpreter/types.hpp>
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namespace SAInterpreter
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{
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class Context : public Interpreter::Context
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{
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std::vector<Interpreter::Type_Short> mShorts;
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std::vector<Interpreter::Type_Integer> mLongs;
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std::vector<Interpreter::Type_Float> mFloats;
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std::vector<std::string> mNames;
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public:
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Context (const std::string& filename);
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///< Create context from file
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/// \note A context for an integreted interpreter will typically not
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/// configure at construction, but will offer a separate function.
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virtual int getLocalShort (int index) const;
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virtual int getLocalLong (int index) const;
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virtual float getLocalFloat (int index) const;
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virtual void setLocalShort (int index, int value);
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virtual void setLocalLong (int index, int value);
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virtual void setLocalFloat (int index, float value);
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void report();
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///< Write state to std::cout
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};
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}
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#endif
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@ -9,14 +9,18 @@
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#include <components/interpreter/context.hpp>
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#include <components/interpreter/types.hpp>
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#include "context.hpp"
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int main (int argc, char **argv)
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{
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try
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{
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Interpreter::Context context;
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Interpreter::Interpreter interpreter (context);
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{
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std::string filename = argc>1 ? argv[1] : "test.mwscript";
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std::string localfilename = filename + ".locals";
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SAInterpreter::Context context (localfilename);
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Interpreter::Interpreter interpreter (context);
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std::string codefilename = filename + ".code";
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@ -39,6 +43,8 @@ int main (int argc, char **argv)
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codefile.read (reinterpret_cast<char *> (&code[4]), size * sizeof (Interpreter::Type_Code));
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interpreter.run (&code[0], size+4);
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context.report();
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}
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catch (const std::exception &e)
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{
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@ -5,7 +5,21 @@ namespace Interpreter
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{
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class Context
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{
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public:
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virtual ~Context() {}
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virtual int getLocalShort (int index) const = 0;
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virtual int getLocalLong (int index) const = 0;
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virtual float getLocalFloat (int index) const = 0;
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virtual void setLocalShort (int index, int value) = 0;
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virtual void setLocalLong (int index, int value) = 0;
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virtual void setLocalFloat (int index, float value) = 0;
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};
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}
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@ -7,6 +7,8 @@ namespace Interpreter
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typedef unsigned int Type_Data; // 32 bit
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typedef short Type_Short; // 16 bit
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typedef int Type_Integer; // 32 bit
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typedef float Type_Float; // 32 bit
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