/// <summary> /// Remove a <see cref="Variable"/> and its references /// </summary> /// <param name="expr"> <see cref="Expression"/> resulting in a <see cref="Variable"/></param> /// <returns> <see cref="NullVar"/> (equivalent of null/void)</returns> private static NullVar deleteVarFunction(Expression expr) { // evaluate every expression Variable variable = expr.evaluate(); string var_name = variable.getName(); // delete var Debugging.assert(Global.variableExistsInCurrentScope(var_name), new AquilaExceptions.NameError($"Variable name \"{var_name}\" does not exist in the current Context")); // remove the Tracer if is traced if (variable.isTraced()) { // remove from the usable variables Global.usable_variables.Remove(var_name); // Deletion Alteration var alter = new Alteration("delete_var", variable, null, new dynamic[] {}); // Update the tracer with the death event variable.tracer.update(new Event(alter)); // Remove the tracer Global.var_tracers.Remove(variable.tracer); } // remove from the dict Global.getCurrentDict().Remove(var_name); return(new NullVar()); }
/// <summary> /// Get the <see cref="Variable"/> from the current variable Dictionary. /// You an give the variable name with or without the "$" (<see cref="StringConstants.Other.VARIABLE_PREFIX"/>) prefix /// </summary> /// <param name="var_name"> The variable name (with or without the prefix)</param> /// <returns> the corresponding <see cref="Variable"/></returns> private static Variable variableFromName(string var_name) { if (var_name.StartsWith(StringConstants.Other.VARIABLE_PREFIX)) { var_name = var_name.Substring(1); } Debugging.print("Variable access: ", var_name); //Interpreter.processInterpreterInput("vars"); Debugging.assert(Global.variableExistsInCurrentScope(var_name), new AquilaExceptions.NameError($"Variable name \"{var_name}\" does not exist in the current Context")); return(Global.variableFromName(var_name)); }
public Declaration(int line_index, string var_name, Expression var_expr, string var_type = StringConstants.Types.AUTO_TYPE, bool assignment = true, bool safe_mode = false, bool overwrite = false, bool constant = false, bool global = false) { // mode: 0 -> new var (must not exist); 1 -> force overwrite (must exist); 2 -> safe overwrite (can exist) this.line_index = line_index; _var_name = var_name; _var_expr = var_expr; _var_type = var_type; _assignment = assignment; _constant = constant; _global = global; // check variable naming Debugging.assert(StringUtils.validObjectName(var_name), new AquilaExceptions.SyntaxExceptions.SyntaxError($"Invalid object name \"{var_name}\"")); // the declaration is not initiated in the right scope... cannot do this here bool var_exists = Global.variableExistsInCurrentScope(var_name); Debugging.print("new declaration: var_name = " + var_name + ", var_expr = ", var_expr.expr, ", var_type = ", var_type, ", assignment = ", assignment, ", mode = ", StringUtils.boolString(safe_mode, overwrite, _constant, _global), ", exists = ", var_exists); // should not check overwriting modes if this is true if (Global.getSetting("implicit declaration in assignment")) { Debugging.print("implicit declaration in assignments, so skipping var existence checks (var exists: ", var_exists, ")"); return; } if (safe_mode && var_exists) { Debugging.assert(!Global.variableFromName(var_name).isTraced()); } if (overwrite) { Debugging.assert(var_exists); } }
private static DataTree variableDataTree(string variable) { if (!Global.variableExistsInCurrentScope(variable)) { return(new DataTree(variable, null, new List <string> { $"The variable \"{variable}\" does not exist in the current scope" })); } Variable v = Global.variableFromName(variable); string var_type = v.getTypeString(); string value = v.ToString(); string is_const = v.isConst().ToString(); string is_traced = v.isTraced().ToString(); return(new DataTree(variable, null, new List <string> { "Name: " + variable, "Type: " + var_type, "Value: " + value, "Const: " + is_const, "Traced: " + is_traced })); }
public override void execute() { setContext(); // get variable value Variable variable_value = _var_expr.evaluate(); // is the value assigned ? (only relevant if other variable) variable_value.assertAssignment(); Variable variable = Variable.fromRawValue(variable_value.getRawValue()); // keep track of source vars -> should do something generic for lots of attributes ... if (variable is NumericalValue) { ((NumericalValue)variable).source_vars = new Dictionary <string, NumericalValue>(((NumericalValue)variable_value).source_vars); } variable.setName(_var_name); // explicit typing if (_var_type != StringConstants.Types.AUTO_TYPE) { Debugging.print("checking variable explicit type"); Expression default_value = Global.default_values_by_var_type[_var_type]; Debugging.assert(variable_value.hasSameParent(default_value.evaluate())); // TypeException } // constant if (_constant) { if (variable_value.isConst()) { variable.setConst(); } else { throw new AquilaExceptions.InvalidVariableClassifierException( "The \"const\" cannot be used when assigning to a non-const value"); } } // actually declare it to its value if (_global) { Global.addGlobalVariable(_var_name, variable); } else { Global.getCurrentDict()[_var_name] = variable; // overwriting is mandatory Debugging.print("variable exists ", Global.variableExistsInCurrentScope(_var_name)); if (_assignment) { variable.assign(); // should not need this, but doing anyway } else { variable.assigned = false; } } Debugging.print("finished declaration with value assignment: ", variable.assigned); // automatic tracing ? if (_assignment && Global.getSetting("auto trace")) { Debugging.print("Tracing variable: \"auto trace\" setting set to true"); // Does NOT work by simply doing "variable.startTracing()", and idk why Tracing tracing_instr = new RawInstruction($"trace ${_var_name}", line_index).toInstr() as Tracing; //Tracing tracing_instr = new Tracing(line_index, new List<Expression>{_var_expr}); // <- does not work either :( tracing_instr.execute(); } // update things 'n stuff Global.onElementaryInstruction(); // reset Context Context.reset(); }
/// <summary> /// Process the input from the interpreter. /// If the input is one of the interactive-mode-only commands, the command should not /// be executed by the interpreter but will be executed by this function manually. /// </summary> /// <param name="input"> command line from the interactive-mode</param> /// <returns> should the command be executed ?</returns> internal static bool processInterpreterInput(string input) { switch (input) { case "help": { Global.stdoutWriteLine("All existing interactive-mode-only commands:"); // ReSharper disable once RedundantExplicitArrayCreation foreach (string command in new string[] { "help", "exit", "reset_env", "clear", // base interactive-mode "exec", "exec_info", // exec "debug", "trace_debug", "parse_debug", // debugging (enable/disable) "eval %expr", // expr "var %var_name", "vars", "$%var_name", // variables // ReSharper disable once StringLiteralTypo "funcs", "df_funcs", // functions "type", // ? "trace_info", "trace_uniq_stacks", "rewind %n %var_name", "peek_trace $%traced_value", // trace "get_context", "set_status", "set_info_null", "reset_context", // context "scope_info", // scope "show-settings", // settings }) { Global.stdoutWriteLine(" -> " + command); } return(false); } case "clear": if (!Global.getSetting("redirect debug stout & stderr")) { Console.Clear(); } return(false); case "vars": { Global.stdoutWriteLine("Global Variables:"); foreach (var pair in Global.getGlobalVariables()) { Global.stdoutWriteLine("\t" + pair.Key + " : " + pair.Value); } int i = 0; Global.stdoutWriteLine("Local Scope Variables:"); foreach (var dict in Global.getCurrentDictList()) { i++; foreach (var pair in dict) { Global.stdoutWrite(new string('\t', i)); Global.stdoutWrite(pair.Key + " : "); Global.stdoutWriteLine(pair.Value.ToString()); } } return(false); } // ReSharper disable once StringLiteralTypo case "funcs": { Global.stdoutWriteLine("User defined functions:"); foreach (var pair in Functions.user_functions) { Global.stdoutWriteLine(" * " + pair.Key + (pair.Value.isRec() ? " : [rec] " : " : ") + "(" + pair.Value.func_args.Count + ") -> " + pair.Value.getType()); } return(false); } case "df_funcs": Global.stdoutWriteLine("Default (predefined) functions:"); foreach (var pair in Functions.functions_dict) { MethodInfo method = pair.Value.GetMethodInfo(); Global.stdoutWriteLine(" * " + pair.Key + " [?] : (" + method.GetParameters().Length + ") -> " + method.ReturnType); } return(false); case "debug": Global.setSetting("debug", !Global.getSetting("debug")); return(false); case "trace_debug": Global.setSetting("trace debug", !Global.getSetting("trace debug")); return(false); case "parse_debug": Global.setSetting("parse debug", !Global.getSetting("parse debug")); return(false); case "trace_info": { Global.stdoutWriteLine("var tracers:"); foreach (VarTracer tracer in Global.var_tracers) { Global.stdoutWriteLine(" - var : " + (tracer.getTracedObject() as Variable).getName()); Global.stdoutWriteLine(" - stack : " + tracer.getStackCount()); Global.stdoutWriteLine(" - updated : " + tracer.last_stack_count); } Global.stdoutWriteLine("func tracers:"); foreach (FuncTracer tracer in Global.func_tracers) { Global.stdoutWriteLine(" - func : " + tracer.getTracedObject()); Global.stdoutWriteLine(" - stack : " + tracer.getStackCount()); } return(false); } case "trace_uniq_stacks": Global.var_tracers[0].printEventStack(); return(false); case "reset_env": Global.resetEnv(); Global.stdoutWriteLine(" [!] Global Environment reset"); return(false); case "get_context": { int status = Context.getStatus(); Context.StatusEnum status_quote = (Context.StatusEnum)status; object info = Context.getInfo(); bool blocked = Context.isFrozen(); bool enabled = Global.getSetting("fail on context assertions"); Global.stdoutWriteLine("status : " + status); Global.stdoutWriteLine("quote : " + status_quote); Global.stdoutWriteLine("info : " + info); Global.stdoutWriteLine("blocked : " + blocked); Global.stdoutWriteLine("asserts : " + enabled); return(false); } case "set_info_null": Context.setInfo(null); return(false); case "reset_context": Context.reset(); return(false); case "type": Global.stdoutWriteLine("type of NullVar: " + typeof(NullVar)); Global.stdoutWriteLine("type of Variable: " + typeof(Variable)); Global.stdoutWriteLine("type of Integer: " + typeof(Integer)); return(false); case "scope_info": Global.stdoutWriteLine("local scope depth: " + Global.getLocalScopeDepth()); Global.stdoutWriteLine("main scope depth: " + Global.getMainScopeDepth()); return(false); case "show-settings": foreach (var pair in Global.getSettings()) { Global.stdoutWriteLine($" - {pair.Key} : {pair.Value}"); } return(false); } if (input[0] == '$' && Global.variableExistsInCurrentScope(input.Substring(1))) { Global.stdoutWriteLine(Global.variableFromName(input.Substring(1)).ToString()); return(false); } if (input.StartsWith("set_status ")) { int status = int.Parse(input.Substring(11)); Context.setStatus((Context.StatusEnum)status); return(false); } if (input.StartsWith("eval ")) { Variable var_ = Expression.parse(input.Substring(5)); Global.stdoutWriteLine(var_.ToString()); return(false); } if (input.StartsWith("var ")) { string var_name = input.Substring(4); var_name = StringUtils.normalizeWhiteSpaces(var_name); if (var_name == "") { return(false); } Variable var_ = Global.variableFromName(var_name); Global.stdoutWriteLine("name : " + var_.getName()); Global.stdoutWriteLine("type : " + var_.getTypeString()); Global.stdoutWriteLine("const : " + var_.isConst()); Global.stdoutWriteLine("assigned : " + var_.assigned); Global.stdoutWriteLine("value : " + var_); Global.stdoutWriteLine("traced : " + var_.isTraced()); Global.stdoutWriteLine("^ mode : " + var_.trace_mode); if (var_ is NumericalValue value) { Global.stdoutWriteLine("*source : " + StringUtils.dynamic2Str(value.source_vars)); } return(false); } if (input.StartsWith("rewind")) { string[] splitted = input.Split(' '); if (splitted.Length == 3) { if (!int.TryParse(splitted[1], out int n)) { Global.stdoutWriteLine("cannot read n"); return(false); } string var_name = splitted[2]; Variable var_ = Expression.parse(var_name); if (!var_.isTraced()) { Global.stdoutWriteLine("Variable is not traced! Use the \"trace\" instruction to start tracing variables"); return(false); } var_.tracer.rewind(n); return(false); } Global.stdoutWriteLine("split count does not match 3"); return(false); } if (input.StartsWith("peek_trace")) { if (input.Length < 11) { return(false); } Variable var_ = Expression.parse(input.Substring(11)); if (!var_.isTraced()) { Global.stdoutWriteLine("Variable is not traced! Use the \"trace\" instruction to start tracing variables"); return(false); } Alteration alter = var_.tracer.peekEvent().alter; Global.stdoutWriteLine("name : " + alter.name); Global.stdoutWriteLine("variable : " + alter.affected.getName()); Global.stdoutWriteLine("main value : " + StringUtils.dynamic2Str(alter.main_value)); Global.stdoutWriteLine("num minor : " + alter.minor_values.Length); Global.stdoutWriteLine("minor values : " + StringUtils.dynamic2Str(alter.main_value)); Global.stdoutWriteLine("stack count : " + var_.tracer.getStackCount()); Global.stdoutWriteLine("updated : " + var_.tracer.last_stack_count); return(false); } if (input.StartsWith("#")) { Global.stdoutWriteLine("Handling macro parameter"); if (!input.Contains(' ')) { Parser.handleMacro(input.Substring(1), null); return(false); } int index = input.IndexOf(' '); // extract the key & value pair string value = input.Substring(index); input = input.Substring(1, index); // purge pair value = StringUtils.normalizeWhiteSpaces(value); input = StringUtils.normalizeWhiteSpaces(input); Parser.handleMacro(input, value); return(false); } return(true); }