private ExternalFunctionCreator AddExternalFunctions(FunctionDefinition[] functionDefinitions, AST ast)
{
List <FunctionDefinition> allFunctionDefinitions = new List <FunctionDefinition>();
allFunctionDefinitions.AddRange(builtInFunctions);
allFunctionDefinitions.AddRange(functionDefinitions);
// HasFunction requires a reference to the SprakRunner
FunctionDocumentation functionDoc_HasFunction =
new FunctionDocumentation("Check if a function exists on the object", new string[] { "The name of the function" });
allFunctionDefinitions.Add(new FunctionDefinition("bool", "HasFunction", new string[] { "string" }, new string[] { "functionName" }, new ExternalFunctionCreator.OnFunctionCall(API_hasFunction), functionDoc_HasFunction));
FunctionDocumentation functionDoc_ListFunctions =
new FunctionDocumentation("List all functions on the object", new string[] { });
allFunctionDefinitions.Add(new FunctionDefinition("array", "ListFunctions", new string[] { }, new string[] { }, new ExternalFunctionCreator.OnFunctionCall(API_listFunction), functionDoc_ListFunctions));
ExternalFunctionCreator externalFunctionCreator = new ExternalFunctionCreator(allFunctionDefinitions.ToArray());
AST functionList = ast.getChild(1);
foreach (AST externalFunction in externalFunctionCreator.FunctionASTs)
{
functionList.addChild(externalFunction);
}
return(externalFunctionCreator);
}
private void construct(TextReader stream, FunctionDefinition[] functionDefinitions, VariableDefinition[] variableDefinitions)
{
Debug.Assert(stream != null);
Debug.Assert(functionDefinitions != null);
m_compileTimeErrorHandler = new ErrorHandler();
m_runtimeErrorHandler = new ErrorHandler();
m_tokens = Tokenize(stream);
m_ast = Parse(m_tokens);
if (m_compileTimeErrorHandler.getErrors().Count > 0)
{
m_compileTimeErrorHandler.printErrorsToConsole(); return;
}
AddLocalVariables(m_ast, variableDefinitions);
ExternalFunctionCreator externalFunctionCreator = AddExternalFunctions(functionDefinitions, m_ast);
Scope globalScope = CreateScopeTree(m_ast);
if (m_compileTimeErrorHandler.getErrors().Count > 0)
{
m_compileTimeErrorHandler.printErrorsToConsole(); return;
}
m_interpreter = new InterpreterTwo(m_ast, globalScope, m_runtimeErrorHandler, externalFunctionCreator);
m_started = false;
//PaintAST(m_ast);
}
public Interpreter(AST ast, Scope globalScope, ErrorHandler errorHandler, ExternalFunctionCreator externalFunctionCreator)
{
m_ast = ast;
m_errorHandler = errorHandler;
m_globalScope = globalScope;
m_currentScope = m_globalScope;
m_externalFunctionCreator = externalFunctionCreator;
}
public Interpreter(AST ast, Scope globalScope, ErrorHandler errorHandler, ExternalFunctionCreator externalFunctionCreator)
{
m_ast = ast;
m_errorHandler = errorHandler;
m_globalScope = globalScope;
m_currentScope = m_globalScope;
m_externalFunctionCreator = externalFunctionCreator;
}
public FunctionDefinition(string pReturnType, string pFunctionName, string[] pParameterTypes, string[] pParameterNames, ExternalFunctionCreator.OnFunctionCall pCallback, FunctionDocumentation pFunctionDocumentation)
{
returnType = pReturnType;
functionName = pFunctionName;
parameterTypes = pParameterTypes;
parameterNames = pParameterNames;
callback = pCallback;
functionDocumentation = pFunctionDocumentation;
}
public InterpreterTwo(AST ast, Scope globalScope, ErrorHandler errorHandler, ExternalFunctionCreator externalFunctionCreator)
{
#if WRITE_DEBUG_INFO
Console.WriteLine("\nCreated Interpreter!!");
#endif
m_ast = ast;
m_errorHandler = errorHandler;
m_globalScope = globalScope;
m_currentScope = m_globalScope;
m_externalFunctionCreator = externalFunctionCreator;
Reset();
}
private ExternalFunctionCreator AddExternalFunctions(FunctionDefinition[] functionDefinitions, AST ast)
{
List <FunctionDefinition> allFunctionDefinitions = new List <FunctionDefinition>();
allFunctionDefinitions.AddRange(builtInFunctions);
allFunctionDefinitions.AddRange(functionDefinitions);
ExternalFunctionCreator externalFunctionCreator = new ExternalFunctionCreator(allFunctionDefinitions.ToArray());
AST functionList = ast.getChild(1);
foreach (AST externalFunction in externalFunctionCreator.FunctionASTs)
{
functionList.addChild(externalFunction);
}
return(externalFunctionCreator);
}
private void evaluateFunctionScope(AST tree)
{
// Define function name
ReturnValueType returnType = ExternalFunctionCreator.GetReturnTypeFromString(tree.getChild(0).getTokenString());
string functionName = tree.getChild(1).getTokenString();
Symbol functionScope = new FunctionSymbol(m_currentScope, functionName, returnType, tree);
m_globalScope.define(functionScope); // all functions are saved in the global scope
m_currentScope = (Scope)functionScope;
AST_FunctionDefinitionNode functionCallNode = (AST_FunctionDefinitionNode)(tree);
functionCallNode.setScope((Scope)functionScope);
#if WRITE_DEBUG_INFO
Console.WriteLine("\nDefined function with name " + functionName + " and return type " + returnType);
#endif
// Process the body of the function
evaluateScopeDeclarations(tree.getChild(3));
m_currentScope = m_currentScope.getEnclosingScope(); // pop scope
}
private ExternalFunctionCreator AddExternalFunctions(FunctionDefinition[] functionDefinitions, AST ast)
{
List<FunctionDefinition> allFunctionDefinitions = new List<FunctionDefinition>();
allFunctionDefinitions.AddRange(builtInFunctions);
allFunctionDefinitions.AddRange(functionDefinitions);
ExternalFunctionCreator externalFunctionCreator = new ExternalFunctionCreator(allFunctionDefinitions.ToArray());
AST functionList = ast.getChild(1);
foreach (AST externalFunction in externalFunctionCreator.FunctionASTs)
{
functionList.addChild(externalFunction);
}
return externalFunctionCreator;
}
private ExternalFunctionCreator AddExternalFunctions(FunctionDefinition[] functionDefinitions, AST ast)
{
List<FunctionDefinition> allFunctionDefinitions = new List<FunctionDefinition>();
allFunctionDefinitions.AddRange(builtInFunctions);
allFunctionDefinitions.AddRange(functionDefinitions);
// HasFunction requires a reference to the SprakRunner
FunctionDocumentation functionDoc_HasFunction =
new FunctionDocumentation("Check if a function exists on the object", new string[] { "The name of the function" });
allFunctionDefinitions.Add(new FunctionDefinition("bool", "HasFunction", new string[] { "string" }, new string[] { "functionName" }, new ExternalFunctionCreator.OnFunctionCall(API_hasFunction), functionDoc_HasFunction));
ExternalFunctionCreator externalFunctionCreator = new ExternalFunctionCreator(allFunctionDefinitions.ToArray());
AST functionList = ast.getChild(1);
foreach (AST externalFunction in externalFunctionCreator.FunctionASTs)
{
functionList.addChild(externalFunction);
}
return externalFunctionCreator;
}