public Interpreter(AbstractSyntaxTree ast)
{
this.ast = ast;
rootEnv = new InterpreterEnvironment();
// Register built-in functions as symbols in the root environment
DefineBuiltInFunctions();
}
private static void ProcessFiles(string[] filePaths)
{
// Load all the source files
List <string> sourceFiles = new List <string>();
foreach (string filePath in filePaths)
{
// File exists
// Read it
if (File.Exists(filePath))
{
sourceFiles.Add(File.ReadAllText(filePath));
}
// File does not exist
// Print an error and stop execution
else
{
throw new FatalException($"Source file \"{filePath}\" does not exist");
}
}
// Tokenize all the source code
IEnumerable <Token> tokens = sourceFiles.SelectMany(x => Lexer.Tokenize(x));
// No tokens
// All source files are empty
if (tokens.Count() == 0)
{
throw new FatalException("No source code provided (all source files are empty)");
}
// Parse the AST
AbstractSyntaxTree ast = Parser.ParseAST(tokens);
// Execute the program based on the parsed AST
Interpreter inter = new Interpreter(ast);
inter.Run();
}
