some memory management
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@@ -1,6 +0,0 @@
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void assert_type (Lisp_Object* node, Lisp_Object_Type type) {
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if (!node)
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create_error(Error_Type::Unknown_Error, nullptr);
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if (node->type == type) return;
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create_error(Error_Type::Type_Missmatch, node->sourceCodeLocation);
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}
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+69
-77
@@ -1,9 +1,3 @@
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Lisp_Object* eval_arguments(Lisp_Object* arguments, Environment* env, int *out_arguments_length);
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int list_length(Lisp_Object* node);
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Lisp_Object* eval_expr(Lisp_Object* node, Environment* env);
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bool is_truthy (Lisp_Object* expression, Environment* env);
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void parse_argument_list(Lisp_Object* arguments, Function* function);
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bool lisp_object_equal(Lisp_Object* n1, Lisp_Object* n2) {
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if (n1 == n2)
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return true;
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@@ -55,17 +49,17 @@ Lisp_Object* built_in_equals(Lisp_Object* arguments, Environment* env) {
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}
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if (arguments->type == Lisp_Object_Type::Nil)
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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Lisp_Object* first = arguments->value.pair->first;
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while (arguments->type == Lisp_Object_Type::Pair) {
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if (!lisp_object_equal(arguments->value.pair->first, first))
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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}
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Lisp_Object* built_in_greater(Lisp_Object* arguments, Environment* env) {
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@@ -82,13 +76,13 @@ Lisp_Object* built_in_greater(Lisp_Object* arguments, Environment* env) {
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}
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if (arguments->value.pair->first->value.number->value >= last_number)
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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last_number = arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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}
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Lisp_Object* built_in_greater_equal(Lisp_Object* arguments, Environment* env) {
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@@ -105,13 +99,13 @@ Lisp_Object* built_in_greater_equal(Lisp_Object* arguments, Environment* env) {
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}
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if (arguments->value.pair->first->value.number->value > last_number)
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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last_number = arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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}
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Lisp_Object* built_in_less(Lisp_Object* arguments, Environment* env) {
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@@ -128,13 +122,13 @@ Lisp_Object* built_in_less(Lisp_Object* arguments, Environment* env) {
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}
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if (arguments->value.pair->first->value.number->value <= last_number)
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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last_number = arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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}
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Lisp_Object* built_in_less_equal(Lisp_Object* arguments, Environment* env) {
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@@ -151,13 +145,13 @@ Lisp_Object* built_in_less_equal(Lisp_Object* arguments, Environment* env) {
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}
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if (arguments->value.pair->first->value.number->value < last_number)
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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last_number = arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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}
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Lisp_Object* built_in_add(Lisp_Object* arguments, Environment* env) {
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@@ -175,7 +169,7 @@ Lisp_Object* built_in_add(Lisp_Object* arguments, Environment* env) {
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_number(sum);
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return Memory::create_lisp_object_number(sum);
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}
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Lisp_Object* built_in_substract(Lisp_Object* arguments, Environment* env) {
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@@ -198,7 +192,7 @@ Lisp_Object* built_in_substract(Lisp_Object* arguments, Environment* env) {
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difference -= arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_number(difference);
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return Memory::create_lisp_object_number(difference);
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}
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Lisp_Object* built_in_multiply(Lisp_Object* arguments, Environment* env) {
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@@ -221,7 +215,7 @@ Lisp_Object* built_in_multiply(Lisp_Object* arguments, Environment* env) {
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product *= arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_number(product);
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return Memory::create_lisp_object_number(product);
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}
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Lisp_Object* built_in_divide(Lisp_Object* arguments, Environment* env) {
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@@ -244,7 +238,7 @@ Lisp_Object* built_in_divide(Lisp_Object* arguments, Environment* env) {
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quotient /= arguments->value.pair->first->value.number->value;
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arguments = arguments->value.pair->rest;
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}
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return create_lisp_object_number(quotient);
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return Memory::create_lisp_object_number(quotient);
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}
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Lisp_Object* built_in_exponentiate(Lisp_Object* arguments, Environment* env) {
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@@ -272,14 +266,14 @@ Lisp_Object* built_in_exponentiate(Lisp_Object* arguments, Environment* env) {
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double exponent = arguments->value.pair->first->value.number->value;
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return create_lisp_object_number(pow(base, exponent));
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return Memory::create_lisp_object_number(pow(base, exponent));
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}
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Lisp_Object* built_in_load(char* file_name, Environment* env) {
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char* file_content = read_entire_file(file_name);
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if (file_content) {
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Lisp_Object* result = create_lisp_object_nil();
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Lisp_Object* result = Memory::create_lisp_object_nil();
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Lisp_Object_Array_List* program;
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try {
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program = Parser::parse_program(file_name, file_content);
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@@ -308,8 +302,8 @@ void load_built_ins_into_environment(Environment* env) {
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auto defun = [&](char* name, std::function<Lisp_Object*(Lisp_Object*, Environment*)> fun) {
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define_symbol(
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create_lisp_object_symbol(name),
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create_lisp_object_cfunction(fun),
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Memory::create_lisp_object_symbol(name),
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Memory::create_lisp_object_cfunction(fun),
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env);
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};
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@@ -436,7 +430,7 @@ void load_built_ins_into_environment(Environment* env) {
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try {
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result = eval_expr(else_part->value.pair->first, env);
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}
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else return create_lisp_object_nil();
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else return Memory::create_lisp_object_nil();
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return result;
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});
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defun("quote", cLambda {
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@@ -466,7 +460,7 @@ void load_built_ins_into_environment(Environment* env) {
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unquoteSomeExpressions = [&unquoteSomeExpressions, &env] (Lisp_Object* expr) -> Lisp_Object* {
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// if it is an atom, return it
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if (expr->type != Lisp_Object_Type::Pair)
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return copy_lisp_object(expr);
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return Memory::copy_lisp_object(expr);
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// it is a pair!
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Lisp_Object* originalPair = expr->value.pair->first;
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@@ -486,7 +480,7 @@ void load_built_ins_into_environment(Environment* env) {
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// funciton, we can't jsut modify it because otherwise
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// we modify the body of the function and would bake
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// in the result...
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Lisp_Object* newPair = create_lisp_object_pair(nullptr, nullptr);
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Lisp_Object* newPair = Memory::create_lisp_object_pair(nullptr, nullptr);
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Lisp_Object* newPairHead = newPair;
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Lisp_Object* head = expr;
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while (head->type == Lisp_Object_Type::Pair) {
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@@ -495,12 +489,12 @@ void load_built_ins_into_environment(Environment* env) {
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if (head->value.pair->rest->type != Lisp_Object_Type::Pair)
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break;
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newPairHead->value.pair->rest = create_lisp_object_pair(nullptr, nullptr);
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newPairHead->value.pair->rest = Memory::create_lisp_object_pair(nullptr, nullptr);
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newPairHead = newPairHead->value.pair->rest;
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head = head->value.pair->rest;
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}
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newPairHead->value.pair->rest = create_lisp_object_nil();
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newPairHead->value.pair->rest = Memory::create_lisp_object_nil();
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return newPair;
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};
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@@ -522,10 +516,10 @@ void load_built_ins_into_environment(Environment* env) {
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}
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arguments = arguments->value.pair->rest;
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if (!result) return create_lisp_object_nil();
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if (!result) return Memory::create_lisp_object_nil();
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}
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return create_lisp_object_t();
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return Memory::create_lisp_object_t();
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});
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defun("or", cLambda {
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bool result = false;
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@@ -538,10 +532,10 @@ void load_built_ins_into_environment(Environment* env) {
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}
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arguments = arguments->value.pair->rest;
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if (result) return create_lisp_object_t();
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if (result) return Memory::create_lisp_object_t();
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}
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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});
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defun("not", cLambda {
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try {
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@@ -556,8 +550,8 @@ void load_built_ins_into_environment(Environment* env) {
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truthy = is_truthy(arguments->value.pair->first, env);
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}
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if (truthy)
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return create_lisp_object_nil();
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return create_lisp_object_t();
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return Memory::create_lisp_object_nil();
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return Memory::create_lisp_object_t();
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});
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defun("while", cLambda {
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try {
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@@ -570,7 +564,7 @@ void load_built_ins_into_environment(Environment* env) {
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Lisp_Object* condition_part = arguments->value.pair->first;
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Lisp_Object* condition;
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Lisp_Object* then_part = arguments->value.pair->rest;
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Lisp_Object* result = create_lisp_object_nil();
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Lisp_Object* result = Memory::create_lisp_object_nil();
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while (true) {
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try {
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@@ -595,7 +589,7 @@ void load_built_ins_into_environment(Environment* env) {
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if (arguments_length < 1)
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report_error(Error_Type::Wrong_Number_Of_Arguments);
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Environment* let_env = create_child_environment(env);
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Environment* let_env = Memory::create_child_environment(env);
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Lisp_Object* bindings = arguments->value.pair->first;
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while (true) {
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if (bindings->type == Lisp_Object_Type::Nil) {
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@@ -684,11 +678,11 @@ void load_built_ins_into_environment(Environment* env) {
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// we are now in the function body, just wrap it in an
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// implicit prog
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function->body = create_lisp_object_pair(
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create_lisp_object_symbol("prog"),
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function->body = Memory::create_lisp_object_pair(
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Memory::create_lisp_object_symbol("prog"),
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arguments);
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Lisp_Object* ret = new(Lisp_Object);
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Lisp_Object* ret = Memory::create_lisp_object();
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ret->type = Lisp_Object_Type::Function;
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ret->value.function = function;
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return ret;
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@@ -734,11 +728,11 @@ void load_built_ins_into_environment(Environment* env) {
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// we are now in the function body, just wrap it in an
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// implicit prog
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function->body = create_lisp_object_pair(
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create_lisp_object_symbol("prog"),
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function->body = Memory::create_lisp_object_pair(
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Memory::create_lisp_object_symbol("prog"),
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arguments);
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Lisp_Object* ret = new(Lisp_Object);
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Lisp_Object* ret = Memory::create_lisp_object();
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ret->type = Lisp_Object_Type::Function;
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ret->value.function = function;
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return ret;
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@@ -790,7 +784,7 @@ void load_built_ins_into_environment(Environment* env) {
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if (arguments_length != 2) {
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report_error(Error_Type::Wrong_Number_Of_Arguments);
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}
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return create_lisp_object_pair(evaluated_arguments->value.pair->first, evaluated_arguments->value.pair->rest->value.pair->first);
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return Memory::create_lisp_object_pair(evaluated_arguments->value.pair->first, evaluated_arguments->value.pair->rest->value.pair->first);
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});
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defun("first", cLambda {
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try {
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@@ -800,7 +794,7 @@ void load_built_ins_into_environment(Environment* env) {
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report_error(Error_Type::Wrong_Number_Of_Arguments);
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}
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if (evaluated_arguments->value.pair->first->type == Lisp_Object_Type::Nil)
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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if (evaluated_arguments->value.pair->first->type != Lisp_Object_Type::Pair)
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report_error(Error_Type::Type_Missmatch);
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@@ -814,7 +808,7 @@ void load_built_ins_into_environment(Environment* env) {
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report_error(Error_Type::Wrong_Number_Of_Arguments);
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}
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if (evaluated_arguments->value.pair->first->type == Lisp_Object_Type::Nil)
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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if (evaluated_arguments->value.pair->first->type != Lisp_Object_Type::Pair)
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report_error(Error_Type::Type_Missmatch);
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@@ -830,26 +824,26 @@ void load_built_ins_into_environment(Environment* env) {
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Lisp_Object_Type type = evaluated_arguments->value.pair->first->type;
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switch (type) {
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case Lisp_Object_Type::CFunction: return create_lisp_object_keyword("cfunction");
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case Lisp_Object_Type::CFunction: return Memory::create_lisp_object_keyword("cfunction");
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case Lisp_Object_Type::Function: {
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Function* fun = evaluated_arguments->value.pair->first->value.function;
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if (fun->type == Function_Type::Lambda)
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return create_lisp_object_keyword("lambda");
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return Memory::create_lisp_object_keyword("lambda");
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else if (fun->type == Function_Type::Special_Lambda)
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return create_lisp_object_keyword("special-lambda");
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return Memory::create_lisp_object_keyword("special-lambda");
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else if (fun->type == Function_Type::Macro)
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return create_lisp_object_keyword("macro");
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else return create_lisp_object_keyword("unknown");
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return Memory::create_lisp_object_keyword("macro");
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else return Memory::create_lisp_object_keyword("unknown");
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}
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case Lisp_Object_Type::Keyword: return create_lisp_object_keyword("keyword");
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case Lisp_Object_Type::Nil: return create_lisp_object_keyword("nil");
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case Lisp_Object_Type::T: return create_lisp_object_keyword("t");
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case Lisp_Object_Type::Number: return create_lisp_object_keyword("number");
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case Lisp_Object_Type::Pair: return create_lisp_object_keyword("pair");
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case Lisp_Object_Type::String: return create_lisp_object_keyword("string");
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case Lisp_Object_Type::Symbol: return create_lisp_object_keyword("symbol");
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case Lisp_Object_Type::Keyword: return Memory::create_lisp_object_keyword("keyword");
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case Lisp_Object_Type::Nil: return Memory::create_lisp_object_keyword("nil");
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case Lisp_Object_Type::T: return Memory::create_lisp_object_keyword("t");
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case Lisp_Object_Type::Number: return Memory::create_lisp_object_keyword("number");
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case Lisp_Object_Type::Pair: return Memory::create_lisp_object_keyword("pair");
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case Lisp_Object_Type::String: return Memory::create_lisp_object_keyword("string");
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case Lisp_Object_Type::Symbol: return Memory::create_lisp_object_keyword("symbol");
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}
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return create_lisp_object_keyword("unknown");
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return Memory::create_lisp_object_keyword("unknown");
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});
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defun("info", cLambda {
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try {
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@@ -863,9 +857,9 @@ void load_built_ins_into_environment(Environment* env) {
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print(arguments->value.pair->first);
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Lisp_Object* type = eval_expr(
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create_lisp_object_pair(
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create_lisp_object_symbol("type"),
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create_lisp_object_pair(arguments->value.pair->first, create_lisp_object_nil())),
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Memory::create_lisp_object_pair(
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Memory::create_lisp_object_symbol("type"),
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Memory::create_lisp_object_pair(arguments->value.pair->first, Memory::create_lisp_object_nil())),
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env);
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if (type) {
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@@ -924,7 +918,7 @@ void load_built_ins_into_environment(Environment* env) {
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delete_error();
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}
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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});
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defun("print", cLambda {
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try {
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@@ -935,7 +929,7 @@ void load_built_ins_into_environment(Environment* env) {
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}
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print(evaluated_arguments->value.pair->first);
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// printf("\n");
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return create_lisp_object_nil();
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return Memory::create_lisp_object_nil();
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});
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defun("read", cLambda {
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try {
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@@ -954,7 +948,7 @@ void load_built_ins_into_environment(Environment* env) {
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print(evaluated_arguments->value.pair->first);
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}
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char* line = read_line();
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return create_lisp_object_string(line, (int)strlen(line));
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return Memory::create_lisp_object_string(line, (int)strlen(line));
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});
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defun("exit", cLambda {
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try {
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@@ -979,7 +973,11 @@ void load_built_ins_into_environment(Environment* env) {
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if_debug {
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__debugbreak();
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}
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||||
return create_lisp_object_nil();
|
||||
return Memory::create_lisp_object_nil();
|
||||
});
|
||||
defun("memstat", cLambda {
|
||||
Memory::print_status();
|
||||
return Memory::create_lisp_object_nil();
|
||||
});
|
||||
defun("try", cLambda {
|
||||
try {
|
||||
@@ -1039,7 +1037,7 @@ void load_built_ins_into_environment(Environment* env) {
|
||||
report_error(Error_Type::Type_Missmatch);
|
||||
}
|
||||
|
||||
Lisp_Object* target = new(Lisp_Object);
|
||||
Lisp_Object* target = Memory::create_lisp_object();
|
||||
Lisp_Object* source = evaluated_arguments->value.pair->first;
|
||||
|
||||
*target = *source;
|
||||
@@ -1074,7 +1072,7 @@ void load_built_ins_into_environment(Environment* env) {
|
||||
report_error(Error_Type::Type_Missmatch);
|
||||
}
|
||||
|
||||
return create_lisp_object_symbol(_strdup(source->value.string->value));
|
||||
return Memory::create_lisp_object_symbol(_strdup(source->value.string->value));
|
||||
});
|
||||
defun("symbol->string", cLambda {
|
||||
try {
|
||||
@@ -1092,7 +1090,7 @@ void load_built_ins_into_environment(Environment* env) {
|
||||
}
|
||||
|
||||
// TODO(Felix): this is not really fast what we are doing here:
|
||||
return create_lisp_object_string(_strdup(source->value.symbol->identifier), (int)strlen(source->value.symbol->identifier));
|
||||
return Memory::create_lisp_object_string(_strdup(source->value.symbol->identifier), (int)strlen(source->value.symbol->identifier));
|
||||
});
|
||||
defun("concat-strings", cLambda {
|
||||
try {
|
||||
@@ -1129,15 +1127,9 @@ void load_built_ins_into_environment(Environment* env) {
|
||||
|
||||
resulting_string[index_in_string] = '\0';
|
||||
|
||||
return create_lisp_object_string(resulting_string, resulting_string_len);
|
||||
return Memory::create_lisp_object_string(resulting_string, resulting_string_len);
|
||||
});
|
||||
|
||||
#undef report_error
|
||||
#undef cLambda
|
||||
}
|
||||
|
||||
Environment* create_built_ins_environment() {
|
||||
Environment* ret = create_child_environment(nullptr);
|
||||
load_built_ins_into_environment(ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
+3
-30
@@ -1,30 +1,3 @@
|
||||
struct Environment {
|
||||
struct Environment* parent;
|
||||
|
||||
int capacity;
|
||||
int next_index;
|
||||
// TODO(Felix): Use a hashmap here.
|
||||
char** keys;
|
||||
Lisp_Object** values;
|
||||
};
|
||||
|
||||
Environment* create_child_environment(Environment* parent) {
|
||||
Environment* env = new(Environment);
|
||||
|
||||
int start_capacity = 16;
|
||||
|
||||
env->parent = parent;
|
||||
env->capacity = start_capacity;
|
||||
env->next_index = 0;
|
||||
env->keys = (char**)malloc(start_capacity * sizeof(char*));
|
||||
env->values = (Lisp_Object**)malloc(start_capacity * sizeof(Lisp_Object*));
|
||||
|
||||
return env;
|
||||
}
|
||||
|
||||
Environment* create_empty_environment() {
|
||||
return create_child_environment(nullptr);
|
||||
}
|
||||
|
||||
void define_symbol(Lisp_Object* symbol, Lisp_Object* value, Environment* env) {
|
||||
// NOTE(Felix): right now we are simply adding the symol at the
|
||||
@@ -68,10 +41,10 @@ Lisp_Object* lookup_symbol(Lisp_Object* node, Environment* env) {
|
||||
}
|
||||
|
||||
if (string_equal(sym->identifier, "nil")) {
|
||||
return create_lisp_object_nil();
|
||||
return Memory::create_lisp_object_nil();
|
||||
}
|
||||
if (string_equal(sym->identifier, "t")) {
|
||||
return create_lisp_object_t();
|
||||
return Memory::create_lisp_object_t();
|
||||
}
|
||||
|
||||
create_error(Error_Type::Symbol_Not_Defined, node->sourceCodeLocation);
|
||||
@@ -87,8 +60,8 @@ void print_indent(int indent) {
|
||||
void print_environment_indent(Environment* env, int indent) {
|
||||
for (int i = 0; i < env->next_index; ++i) {
|
||||
print_indent(indent);
|
||||
printf("%s -> ", env->keys[i]);
|
||||
print(env->values[i]);
|
||||
printf(" %s", env->keys[i]);
|
||||
printf("\n");
|
||||
}
|
||||
if (env->parent) {
|
||||
|
||||
+8
-22
@@ -1,25 +1,3 @@
|
||||
enum struct Error_Type {
|
||||
Ill_Formed_Arguments,
|
||||
Ill_Formed_Lambda_List,
|
||||
Ill_Formed_List,
|
||||
Not_A_Function,
|
||||
Not_Yet_Implemented,
|
||||
Symbol_Not_Defined,
|
||||
Syntax_Error,
|
||||
Trailing_Garbage,
|
||||
Type_Missmatch,
|
||||
Unbalanced_Parenthesis,
|
||||
Unexpected_Eof,
|
||||
Unknown_Error,
|
||||
Unknown_Keyword_Argument,
|
||||
Wrong_Number_Of_Arguments,
|
||||
};
|
||||
|
||||
struct Error {
|
||||
Error_Type type;
|
||||
Source_Code_Location* location;
|
||||
};
|
||||
|
||||
Error* error;
|
||||
|
||||
void delete_error() {
|
||||
@@ -52,6 +30,14 @@ char* Error_Type_to_string(Error_Type type) {
|
||||
case Error_Type::Unexpected_Eof: return "Parsing-error: Unexpected EOF";
|
||||
case Error_Type::Unknown_Keyword_Argument: return "Evaluation-error: Unknown keyword argument";
|
||||
case Error_Type::Wrong_Number_Of_Arguments: return "Evaluation-error: Wrong number of arguments";
|
||||
case Error_Type::Out_Of_Memory: return "Runtime-error: Out of memory";
|
||||
default: return "Unknown Error";
|
||||
}
|
||||
}
|
||||
|
||||
void assert_type(Lisp_Object* node, Lisp_Object_Type type) {
|
||||
if (!node)
|
||||
create_error(Error_Type::Unknown_Error, nullptr);
|
||||
if (node->type == type) return;
|
||||
create_error(Error_Type::Type_Missmatch, node->sourceCodeLocation);
|
||||
}
|
||||
|
||||
+10
-11
@@ -1,7 +1,7 @@
|
||||
Lisp_Object* eval_expr(Lisp_Object*, Environment*);
|
||||
|
||||
Lisp_Object* apply_arguments_to_function(Lisp_Object* arguments, Function* function) {
|
||||
Environment* new_env = create_child_environment(function->parent_environment);
|
||||
Environment* new_env = Memory::create_child_environment(function->parent_environment);
|
||||
|
||||
// positional arguments
|
||||
for (int i = 0; i < function->positional_arguments->next_index; ++i) {
|
||||
@@ -10,7 +10,7 @@ Lisp_Object* apply_arguments_to_function(Lisp_Object* arguments, Function* funct
|
||||
// their identifiers but before we converted them to
|
||||
// strings from symbols... Wo maybe just use the symbols?
|
||||
define_symbol(
|
||||
create_lisp_object_symbol(function->positional_arguments->identifiers[i]),
|
||||
Memory::create_lisp_object_symbol(function->positional_arguments->identifiers[i]),
|
||||
arguments->value.pair->first, new_env);
|
||||
} else {
|
||||
|
||||
@@ -71,7 +71,7 @@ Lisp_Object* apply_arguments_to_function(Lisp_Object* arguments, Function* funct
|
||||
|
||||
// if not set it and then add it to the array list
|
||||
define_symbol(
|
||||
create_lisp_object_symbol(arguments->value.pair->first->value.keyword->identifier),
|
||||
Memory::create_lisp_object_symbol(arguments->value.pair->first->value.keyword->identifier),
|
||||
arguments->value.pair->rest->value.pair->first,
|
||||
new_env);
|
||||
|
||||
@@ -110,8 +110,8 @@ Lisp_Object* apply_arguments_to_function(Lisp_Object* arguments, Function* funct
|
||||
// to use it or if the user supplied his own
|
||||
if (!was_set) {
|
||||
define_symbol(
|
||||
create_lisp_object_symbol(defined_keyword),
|
||||
copy_lisp_object(function->keyword_arguments->values->data[i]), new_env);
|
||||
Memory::create_lisp_object_symbol(defined_keyword),
|
||||
Memory::copy_lisp_object(function->keyword_arguments->values->data[i]), new_env);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -120,13 +120,13 @@ Lisp_Object* apply_arguments_to_function(Lisp_Object* arguments, Function* funct
|
||||
if (arguments->type == Lisp_Object_Type::Nil) {
|
||||
if (function->rest_argument) {
|
||||
define_symbol(
|
||||
create_lisp_object_symbol(function->rest_argument),
|
||||
create_lisp_object_nil(), new_env);
|
||||
Memory::create_lisp_object_symbol(function->rest_argument),
|
||||
Memory::create_lisp_object_nil(), new_env);
|
||||
}
|
||||
} else {
|
||||
if (function->rest_argument) {
|
||||
define_symbol(
|
||||
create_lisp_object_symbol(function->rest_argument),
|
||||
Memory::create_lisp_object_symbol(function->rest_argument),
|
||||
arguments, new_env);
|
||||
} else {
|
||||
// rest was not declared but additional arguments were found
|
||||
@@ -326,7 +326,7 @@ Lisp_Object* eval_arguments(Lisp_Object* arguments, Environment* env, int *out_a
|
||||
return arguments;
|
||||
}
|
||||
|
||||
Lisp_Object* evaluated_arguments = create_lisp_object_pair(nullptr, nullptr);
|
||||
Lisp_Object* evaluated_arguments = Memory::create_lisp_object_pair(nullptr, nullptr);
|
||||
Lisp_Object* evaluated_arguments_head = evaluated_arguments;
|
||||
Lisp_Object* current_head = arguments;
|
||||
while (current_head->type == Lisp_Object_Type::Pair) {
|
||||
@@ -337,7 +337,7 @@ Lisp_Object* eval_arguments(Lisp_Object* arguments, Environment* env, int *out_a
|
||||
current_head = current_head->value.pair->rest;
|
||||
|
||||
if (current_head->type == Lisp_Object_Type::Pair) {
|
||||
evaluated_arguments_head->value.pair->rest = create_lisp_object_pair(nullptr, nullptr);
|
||||
evaluated_arguments_head->value.pair->rest = Memory::create_lisp_object_pair(nullptr, nullptr);
|
||||
evaluated_arguments_head = evaluated_arguments_head->value.pair->rest;
|
||||
} else if (current_head->type == Lisp_Object_Type::Nil) {
|
||||
evaluated_arguments_head->value.pair->rest = current_head;
|
||||
@@ -360,7 +360,6 @@ Lisp_Object* eval_expr(Lisp_Object* node, Environment* env) {
|
||||
if (error)
|
||||
return nullptr;
|
||||
|
||||
Lisp_Object* ret = new(Lisp_Object);
|
||||
switch (node->type) {
|
||||
case Lisp_Object_Type::T:
|
||||
case Lisp_Object_Type::Nil:
|
||||
|
||||
@@ -0,0 +1,6 @@
|
||||
Lisp_Object* eval_arguments(Lisp_Object* arguments, Environment* env, int *out_arguments_length);
|
||||
Lisp_Object* eval_expr(Lisp_Object*, Environment*);
|
||||
bool is_truthy (Lisp_Object* expression, Environment* env);
|
||||
int list_length(Lisp_Object*);
|
||||
void load_built_ins_into_environment(Environment*);
|
||||
void parse_argument_list(Lisp_Object*, Function*);
|
||||
+1
-7
@@ -60,7 +60,7 @@ constexpr bool is_debug_build = false;
|
||||
} \
|
||||
\
|
||||
\
|
||||
name##_Array_List* create_##name##_array_list(int initial_capacity) { \
|
||||
name##_Array_List* create_##name##_array_list(int initial_capacity = 16) { \
|
||||
name##_Array_List* ret = new(name##_Array_List); \
|
||||
ret->data = (type*)malloc(initial_capacity * sizeof(type)); \
|
||||
ret->next_index = 0; \
|
||||
@@ -68,12 +68,6 @@ constexpr bool is_debug_build = false;
|
||||
return ret; \
|
||||
}
|
||||
|
||||
define_array_list(char*, String);
|
||||
|
||||
// int string_equal(char* a, char* b) {
|
||||
// return !strcmp(a, b);
|
||||
// }
|
||||
|
||||
int string_equal(char input[],char check[])
|
||||
{
|
||||
int i,result=1;
|
||||
|
||||
@@ -8,14 +8,6 @@
|
||||
#define console_green ""
|
||||
#define console_cyan ""
|
||||
|
||||
enum struct Log_Level {
|
||||
None,
|
||||
Critical,
|
||||
Warning,
|
||||
Info,
|
||||
Debug,
|
||||
};
|
||||
|
||||
Log_Level log_level = Log_Level::Debug;
|
||||
|
||||
void log_message(Log_Level type, char* message) {
|
||||
|
||||
@@ -1,19 +1,3 @@
|
||||
struct Lisp_Object;
|
||||
|
||||
define_array_list(Lisp_Object*, Lisp_Object);
|
||||
|
||||
enum struct Lisp_Object_Type {
|
||||
Nil,
|
||||
T,
|
||||
Symbol,
|
||||
Keyword,
|
||||
Number,
|
||||
String,
|
||||
Pair,
|
||||
Function,
|
||||
CFunction,
|
||||
};
|
||||
|
||||
char* Lisp_Object_Type_to_string(Lisp_Object_Type type) {
|
||||
switch (type) {
|
||||
case(Lisp_Object_Type::Nil): return "nil";
|
||||
@@ -29,46 +13,6 @@ char* Lisp_Object_Type_to_string(Lisp_Object_Type type) {
|
||||
return "unknown";
|
||||
}
|
||||
|
||||
struct Symbol {
|
||||
char* identifier;
|
||||
};
|
||||
|
||||
struct Keyword {
|
||||
char* identifier;
|
||||
};
|
||||
|
||||
struct Number {
|
||||
double value;
|
||||
};
|
||||
|
||||
struct String {
|
||||
char* value;
|
||||
int length;
|
||||
};
|
||||
|
||||
struct Pair {
|
||||
Lisp_Object* first;
|
||||
Lisp_Object* rest;
|
||||
};
|
||||
|
||||
struct Positional_Arguments {
|
||||
// TODO(Felix) use Lisp_Object_symbols here instead, so we don't have
|
||||
// to convert them to strings and back to symbols
|
||||
char** identifiers;
|
||||
int next_index;
|
||||
int length;
|
||||
};
|
||||
|
||||
struct Keyword_Arguments {
|
||||
char** identifiers;
|
||||
// NOTE(Felix): values[i] will be nullptr if no defalut value was
|
||||
// declared for key identifiers[i]
|
||||
Lisp_Object_Array_List* values;
|
||||
int next_index;
|
||||
int length;
|
||||
};
|
||||
|
||||
|
||||
Positional_Arguments* create_positional_argument_list(int initial_capacity) {
|
||||
Positional_Arguments* ret = new(Positional_Arguments);
|
||||
ret->identifiers = (char**)malloc(initial_capacity * sizeof(char*));
|
||||
@@ -106,125 +50,3 @@ void append_to_keyword_argument_list(Keyword_Arguments* args,
|
||||
args->identifiers[args->next_index++] = identifier;
|
||||
append_to_Lisp_Object_array_list(args->values, default_value);
|
||||
}
|
||||
|
||||
struct Environment;
|
||||
|
||||
enum struct Function_Type {
|
||||
Lambda,
|
||||
Special_Lambda,
|
||||
Macro
|
||||
};
|
||||
|
||||
struct Function {
|
||||
Function_Type type;
|
||||
char* docstring;
|
||||
Positional_Arguments* positional_arguments;
|
||||
Keyword_Arguments* keyword_arguments;
|
||||
// rest_argument will be nullptr if no rest argument is declared
|
||||
char* rest_argument;
|
||||
Lisp_Object* body; // implicit prog
|
||||
Environment* parent_environment; // we are doing closures now!!
|
||||
};
|
||||
|
||||
|
||||
struct CFunction {
|
||||
std::function<Lisp_Object* (Lisp_Object*, Environment*)> function;
|
||||
};
|
||||
|
||||
struct Lisp_Object {
|
||||
Source_Code_Location* sourceCodeLocation;
|
||||
Lisp_Object_Type type;
|
||||
union {
|
||||
Symbol* symbol;
|
||||
Keyword* keyword;
|
||||
Number* number;
|
||||
String* string;
|
||||
Pair* pair;
|
||||
Function* function;
|
||||
CFunction* cfunction;
|
||||
} value;
|
||||
};
|
||||
|
||||
struct Parsed_Arguments {
|
||||
Lisp_Object_Array_List* positional_arguments;
|
||||
// TODO(Felix): Really use hashmap (keyword[sting] ->
|
||||
// value[Lisp_Object*]) here
|
||||
Lisp_Object_Array_List* keyword_keys;
|
||||
Lisp_Object_Array_List* keyword_values;
|
||||
};
|
||||
|
||||
Lisp_Object* create_lisp_object() {
|
||||
Lisp_Object* node = new(Lisp_Object);
|
||||
node->sourceCodeLocation = nullptr;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_nil() {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Nil;
|
||||
node->value.pair = nullptr;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_t() {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::T;
|
||||
node->value.pair = nullptr;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_number(double number) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Number;
|
||||
node->value.number = new(Number);
|
||||
node->value.number->value = number;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_string(char* str, int length) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::String;
|
||||
node->value.string = new(String);
|
||||
node->value.string->value = str;
|
||||
node->value.string->length = length;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_symbol(char* identifier) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Symbol;
|
||||
node->value.symbol = new(Symbol);
|
||||
node->value.symbol->identifier = identifier;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_keyword(char* keyword) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Keyword;
|
||||
node->value.keyword = new(Keyword);
|
||||
node->value.keyword->identifier = keyword;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_cfunction(std::function<Lisp_Object*(Lisp_Object*, Environment*)> function) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::CFunction;
|
||||
node->value.cfunction = new(CFunction);
|
||||
node->value.cfunction->function = function;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_pair(Lisp_Object* first, Lisp_Object* rest) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Pair;
|
||||
node->value.pair = new(Pair);
|
||||
node->value.pair->first = first;
|
||||
node->value.pair->rest = rest;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* copy_lisp_object(Lisp_Object* n) {
|
||||
Lisp_Object* target = create_lisp_object();
|
||||
*target = *n;
|
||||
return target;
|
||||
}
|
||||
|
||||
+15
-10
@@ -9,10 +9,12 @@
|
||||
#include <functional>
|
||||
|
||||
#include "./helpers.cpp"
|
||||
#include "./structs.cpp"
|
||||
#include "./forward_decls.cpp"
|
||||
#include "./lisp_object.cpp"
|
||||
#include "./error.cpp"
|
||||
#include "./io.cpp"
|
||||
#include "./assert.cpp"
|
||||
#include "./memory.cpp"
|
||||
#include "./env.cpp"
|
||||
#include "./parse.cpp"
|
||||
#include "./built_ins.cpp"
|
||||
@@ -20,16 +22,17 @@
|
||||
#include "./testing.cpp"
|
||||
|
||||
Lisp_Object* interprete_file (char* file_name) {
|
||||
Memory::init();
|
||||
Environment* env = Memory::create_empty_environment();
|
||||
Parser::init(env);
|
||||
|
||||
char* file_content = read_entire_file(file_name);
|
||||
if (!file_content) {
|
||||
create_error(Error_Type::Unknown_Error, nullptr);
|
||||
}
|
||||
|
||||
Environment* env = create_empty_environment();
|
||||
load_built_ins_into_environment(env);
|
||||
|
||||
Parser::init(env);
|
||||
|
||||
try {
|
||||
built_in_load("pre.slime", env);
|
||||
}
|
||||
@@ -39,7 +42,7 @@ Lisp_Object* interprete_file (char* file_name) {
|
||||
program = Parser::parse_program(file_name, file_content);
|
||||
}
|
||||
|
||||
Lisp_Object* result = create_lisp_object_nil();
|
||||
Lisp_Object* result = Memory::create_lisp_object_nil();
|
||||
for (int i = 0; i < program->next_index; ++i) {
|
||||
try {
|
||||
result = eval_expr(program->data[i], env);
|
||||
@@ -50,12 +53,14 @@ Lisp_Object* interprete_file (char* file_name) {
|
||||
}
|
||||
|
||||
int interprete_stdin () {
|
||||
printf("Welcome to the lispy interpreter.\n");
|
||||
char* line;
|
||||
Environment* env = create_built_ins_environment();
|
||||
|
||||
Memory::init();
|
||||
Environment* env = Memory::create_built_ins_environment();
|
||||
Parser::init(env);
|
||||
|
||||
printf("Welcome to the lispy interpreter.\n");
|
||||
|
||||
char* line;
|
||||
|
||||
built_in_load("pre.slime", env);
|
||||
built_in_load("test.slime", env);
|
||||
|
||||
@@ -94,7 +99,7 @@ int main (int argc, char *argv[]) {
|
||||
return 1;
|
||||
}
|
||||
} else {
|
||||
run_all_tests();
|
||||
// run_all_tests();
|
||||
return interprete_stdin();
|
||||
}
|
||||
}
|
||||
|
||||
+138
@@ -0,0 +1,138 @@
|
||||
namespace Memory {
|
||||
|
||||
constexpr int maxLispObjects = 4096 * 1024; // == 98304kb == 96mb
|
||||
Int_Array_List* freeSpots;
|
||||
Lisp_Object* memory;
|
||||
int nextFreeSpot = 0;
|
||||
|
||||
void init() {
|
||||
memory = (Lisp_Object*)malloc(maxLispObjects * sizeof(Lisp_Object));
|
||||
freeSpots = create_Int_array_list();
|
||||
}
|
||||
|
||||
void print_status() {
|
||||
printf("Memory Status:\n"
|
||||
" - %f%% of the memory is used\n"
|
||||
" - %d of %d total Lisp_Objects are in use\n"
|
||||
" - %d holes in used memory (fragmentation)\n",
|
||||
(1.0*nextFreeSpot - freeSpots->next_index)/maxLispObjects,
|
||||
nextFreeSpot - freeSpots->next_index, maxLispObjects,
|
||||
freeSpots->next_index);
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object() {
|
||||
int index;
|
||||
// if we have no free spots then append at the end
|
||||
if (freeSpots->next_index == 0) {
|
||||
// if we still have space
|
||||
if (maxLispObjects == nextFreeSpot) {
|
||||
create_error(Error_Type::Out_Of_Memory, nullptr);
|
||||
return nullptr;
|
||||
}
|
||||
index = nextFreeSpot++;
|
||||
} else {
|
||||
// else fill a free spot
|
||||
index = freeSpots->data[freeSpots->next_index--];
|
||||
}
|
||||
Lisp_Object* object = memory+index;
|
||||
object->sourceCodeLocation = nullptr;
|
||||
return object;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_nil() {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Nil;
|
||||
node->value.pair = nullptr;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_t() {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::T;
|
||||
node->value.pair = nullptr;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_number(double number) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Number;
|
||||
node->value.number = new(Number);
|
||||
node->value.number->value = number;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_string(char* str, int length) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::String;
|
||||
node->value.string = new(String);
|
||||
node->value.string->value = str;
|
||||
node->value.string->length = length;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_symbol(char* identifier) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Symbol;
|
||||
node->value.symbol = new(Symbol);
|
||||
node->value.symbol->identifier = identifier;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_keyword(char* keyword) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Keyword;
|
||||
node->value.keyword = new(Keyword);
|
||||
node->value.keyword->identifier = keyword;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_cfunction(std::function<Lisp_Object*(Lisp_Object*, Environment*)> function) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::CFunction;
|
||||
node->value.cfunction = new(CFunction);
|
||||
node->value.cfunction->function = function;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* create_lisp_object_pair(Lisp_Object* first, Lisp_Object* rest) {
|
||||
Lisp_Object* node = create_lisp_object();
|
||||
node->type = Lisp_Object_Type::Pair;
|
||||
node->value.pair = new(Pair);
|
||||
node->value.pair->first = first;
|
||||
node->value.pair->rest = rest;
|
||||
return node;
|
||||
}
|
||||
|
||||
Lisp_Object* copy_lisp_object(Lisp_Object* n) {
|
||||
Lisp_Object* target = create_lisp_object();
|
||||
*target = *n;
|
||||
return target;
|
||||
}
|
||||
|
||||
// environments
|
||||
|
||||
Environment* create_child_environment(Environment* parent) {
|
||||
Environment* env = new(Environment);
|
||||
|
||||
int start_capacity = 16;
|
||||
|
||||
env->parent = parent;
|
||||
env->capacity = start_capacity;
|
||||
env->next_index = 0;
|
||||
env->keys = (char**)malloc(start_capacity * sizeof(char*));
|
||||
env->values = (Lisp_Object**)malloc(start_capacity * sizeof(Lisp_Object*));
|
||||
|
||||
return env;
|
||||
}
|
||||
|
||||
Environment* create_empty_environment() {
|
||||
return create_child_environment(nullptr);
|
||||
}
|
||||
|
||||
Environment* create_built_ins_environment() {
|
||||
Environment* ret = create_child_environment(nullptr);
|
||||
load_built_ins_into_environment(ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
}
|
||||
+23
-32
@@ -1,11 +1,3 @@
|
||||
// forward decls -- start
|
||||
void load_built_ins_into_environment(Environment*);
|
||||
Lisp_Object* eval_expr(Lisp_Object*, Environment*);
|
||||
void parse_argument_list(Lisp_Object*, Function*);
|
||||
int list_length(Lisp_Object*);
|
||||
// forward decls -- end
|
||||
|
||||
|
||||
namespace Parser {
|
||||
|
||||
#define inject_scl(_ret) \
|
||||
@@ -113,7 +105,7 @@ namespace Parser {
|
||||
double number;
|
||||
char* str_number = read_atom(text, index_in_text);
|
||||
sscanf(str_number, "%lf", &number);
|
||||
Lisp_Object* ret = create_lisp_object_number(number);
|
||||
Lisp_Object* ret = Memory::create_lisp_object_number(number);
|
||||
inject_scl(ret);
|
||||
return ret;
|
||||
}
|
||||
@@ -123,7 +115,7 @@ namespace Parser {
|
||||
++(*index_in_text);
|
||||
++parser_col;
|
||||
char* str_keyword = read_atom(text, index_in_text);
|
||||
Lisp_Object* ret = create_lisp_object_keyword(str_keyword);
|
||||
Lisp_Object* ret = Memory::create_lisp_object_keyword(str_keyword);
|
||||
inject_scl(ret);
|
||||
return ret;
|
||||
}
|
||||
@@ -131,7 +123,7 @@ namespace Parser {
|
||||
Lisp_Object* parse_symbol(char* text, int* index_in_text) {
|
||||
// we are now at the first char of the symbol
|
||||
char* str_symbol = read_atom(text, index_in_text);
|
||||
Lisp_Object* ret = create_lisp_object_symbol(str_symbol);
|
||||
Lisp_Object* ret = Memory::create_lisp_object_symbol(str_symbol);
|
||||
inject_scl(ret);
|
||||
return ret;
|
||||
}
|
||||
@@ -146,7 +138,7 @@ namespace Parser {
|
||||
if (text[*index_in_text] == '"') {
|
||||
char* str = new(char);
|
||||
*str = '\0';
|
||||
Lisp_Object* ret = create_lisp_object_string(str, 0);
|
||||
Lisp_Object* ret = Memory::create_lisp_object_string(str, 0);
|
||||
inject_scl(ret);
|
||||
|
||||
// plus one because we want to go after the quotes
|
||||
@@ -187,7 +179,7 @@ namespace Parser {
|
||||
*index_in_text += string_length +1; // plus one because we want to
|
||||
// go after the quotes
|
||||
|
||||
Lisp_Object* ret = create_lisp_object_string(string, string_length);
|
||||
Lisp_Object* ret = Memory::create_lisp_object_string(string, string_length);
|
||||
inject_scl(ret);
|
||||
return ret;
|
||||
}
|
||||
@@ -246,17 +238,17 @@ namespace Parser {
|
||||
}
|
||||
|
||||
if (quoteType == '\'')
|
||||
return create_lisp_object_pair(
|
||||
create_lisp_object_symbol("quote"),
|
||||
create_lisp_object_pair(result, create_lisp_object_nil()));
|
||||
return Memory::create_lisp_object_pair(
|
||||
Memory::create_lisp_object_symbol("quote"),
|
||||
Memory::create_lisp_object_pair(result, Memory::create_lisp_object_nil()));
|
||||
else if (quoteType == '`')
|
||||
return create_lisp_object_pair(
|
||||
create_lisp_object_symbol("quasiquote"),
|
||||
create_lisp_object_pair(result, create_lisp_object_nil()));
|
||||
return Memory::create_lisp_object_pair(
|
||||
Memory::create_lisp_object_symbol("quasiquote"),
|
||||
Memory::create_lisp_object_pair(result, Memory::create_lisp_object_nil()));
|
||||
// it has to be an unquote
|
||||
return create_lisp_object_pair(
|
||||
create_lisp_object_symbol("unquote"),
|
||||
create_lisp_object_pair(result, create_lisp_object_nil()));
|
||||
return Memory::create_lisp_object_pair(
|
||||
Memory::create_lisp_object_symbol("unquote"),
|
||||
Memory::create_lisp_object_pair(result, Memory::create_lisp_object_nil()));
|
||||
}
|
||||
|
||||
|
||||
@@ -271,11 +263,11 @@ namespace Parser {
|
||||
if (text[(*index_in_text)] == ')') {
|
||||
++(*index_in_text);
|
||||
++parser_col;
|
||||
return create_lisp_object_nil();
|
||||
return Memory::create_lisp_object_nil();
|
||||
}
|
||||
|
||||
// okay there is something
|
||||
Lisp_Object* head = new(Lisp_Object);
|
||||
Lisp_Object* head = Memory::create_lisp_object();
|
||||
head->type = Lisp_Object_Type::Pair;
|
||||
head->value.pair = new(Pair);
|
||||
Lisp_Object* expression = head;
|
||||
@@ -303,7 +295,7 @@ namespace Parser {
|
||||
|
||||
|
||||
if (text[(*index_in_text)] == ')') {
|
||||
head->value.pair->rest = create_lisp_object_nil();
|
||||
head->value.pair->rest = Memory::create_lisp_object_nil();
|
||||
++parser_col;
|
||||
++(*index_in_text);
|
||||
break;
|
||||
@@ -325,7 +317,7 @@ namespace Parser {
|
||||
++(*index_in_text);
|
||||
break;
|
||||
} else {
|
||||
head->value.pair->rest = create_lisp_object_pair(nullptr, nullptr);
|
||||
head->value.pair->rest = Memory::create_lisp_object_pair(nullptr, nullptr);
|
||||
head = head->value.pair->rest;
|
||||
}
|
||||
}
|
||||
@@ -387,17 +379,17 @@ namespace Parser {
|
||||
|
||||
// we are now in the function body, just wrap it in an
|
||||
// implicit prog
|
||||
function->body = create_lisp_object_pair(
|
||||
create_lisp_object_symbol("prog"),
|
||||
function->body = Memory::create_lisp_object_pair(
|
||||
Memory::create_lisp_object_symbol("prog"),
|
||||
arguments);
|
||||
|
||||
Lisp_Object* macro = new(Lisp_Object);
|
||||
Lisp_Object* macro = Memory::create_lisp_object();
|
||||
macro->type = Lisp_Object_Type::Function;
|
||||
macro->value.function = function;
|
||||
define_symbol(symbol_for_macro, macro, environment_for_macros);
|
||||
|
||||
// print_environment(environment_for_macros);
|
||||
return create_lisp_object_nil();
|
||||
return Memory::create_lisp_object_nil();
|
||||
|
||||
} else if (string_equal("delete-syntax", expression->value.pair->first->value.symbol->identifier)) {
|
||||
/* --- deleting an existing macro --- */
|
||||
@@ -453,7 +445,7 @@ namespace Parser {
|
||||
Lisp_Object* result;
|
||||
eat_until_code(text, &index_in_text);
|
||||
if (text[(index_in_text)] == '\0')
|
||||
return create_lisp_object_nil();
|
||||
return Memory::create_lisp_object_nil();
|
||||
if (text[index_in_text] == '(' ||
|
||||
text[index_in_text] == '\'' ||
|
||||
text[index_in_text] == '`' ||
|
||||
@@ -536,5 +528,4 @@ namespace Parser {
|
||||
}
|
||||
|
||||
#undef inject_scl
|
||||
|
||||
}
|
||||
|
||||
+142
@@ -0,0 +1,142 @@
|
||||
struct Lisp_Object;
|
||||
struct Environment;
|
||||
|
||||
define_array_list(Lisp_Object*, Lisp_Object);
|
||||
define_array_list(char*, String);
|
||||
define_array_list(int, Int);
|
||||
|
||||
enum struct Lisp_Object_Type {
|
||||
Nil,
|
||||
T,
|
||||
Symbol,
|
||||
Keyword,
|
||||
Number,
|
||||
String,
|
||||
Pair,
|
||||
Function,
|
||||
CFunction,
|
||||
};
|
||||
|
||||
enum struct Log_Level {
|
||||
None,
|
||||
Critical,
|
||||
Warning,
|
||||
Info,
|
||||
Debug,
|
||||
};
|
||||
|
||||
struct Symbol {
|
||||
char* identifier;
|
||||
};
|
||||
|
||||
struct Keyword {
|
||||
char* identifier;
|
||||
};
|
||||
|
||||
struct Number {
|
||||
double value;
|
||||
};
|
||||
|
||||
struct String {
|
||||
char* value;
|
||||
int length;
|
||||
};
|
||||
|
||||
struct Pair {
|
||||
Lisp_Object* first;
|
||||
Lisp_Object* rest;
|
||||
};
|
||||
|
||||
struct Positional_Arguments {
|
||||
// TODO(Felix) use Lisp_Object_symbols here instead, so we don't have
|
||||
// to convert them to strings and back to symbols
|
||||
char** identifiers;
|
||||
int next_index;
|
||||
int length;
|
||||
};
|
||||
|
||||
struct Keyword_Arguments {
|
||||
char** identifiers;
|
||||
// NOTE(Felix): values[i] will be nullptr if no defalut value was
|
||||
// declared for key identifiers[i]
|
||||
Lisp_Object_Array_List* values;
|
||||
int next_index;
|
||||
int length;
|
||||
};
|
||||
|
||||
enum struct Function_Type {
|
||||
Lambda,
|
||||
Special_Lambda,
|
||||
Macro
|
||||
};
|
||||
|
||||
struct Function {
|
||||
Function_Type type;
|
||||
char* docstring;
|
||||
Positional_Arguments* positional_arguments;
|
||||
Keyword_Arguments* keyword_arguments;
|
||||
// rest_argument will be nullptr if no rest argument is declared
|
||||
char* rest_argument;
|
||||
Lisp_Object* body; // implicit prog
|
||||
Environment* parent_environment; // we are doing closures now!!
|
||||
};
|
||||
|
||||
|
||||
struct CFunction {
|
||||
std::function<Lisp_Object* (Lisp_Object*, Environment*)> function;
|
||||
};
|
||||
|
||||
struct Lisp_Object {
|
||||
Source_Code_Location* sourceCodeLocation;
|
||||
Lisp_Object_Type type;
|
||||
union {
|
||||
Symbol* symbol;
|
||||
Keyword* keyword;
|
||||
Number* number;
|
||||
String* string;
|
||||
Pair* pair;
|
||||
Function* function;
|
||||
CFunction* cfunction;
|
||||
} value;
|
||||
};
|
||||
|
||||
struct Parsed_Arguments {
|
||||
Lisp_Object_Array_List* positional_arguments;
|
||||
// TODO(Felix): Really use hashmap (keyword[sting] ->
|
||||
// value[Lisp_Object*]) here
|
||||
Lisp_Object_Array_List* keyword_keys;
|
||||
Lisp_Object_Array_List* keyword_values;
|
||||
};
|
||||
|
||||
struct Environment {
|
||||
Environment* parent;
|
||||
|
||||
int capacity;
|
||||
int next_index;
|
||||
// TODO(Felix): Use a hashmap here.
|
||||
char** keys;
|
||||
Lisp_Object** values;
|
||||
};
|
||||
|
||||
enum struct Error_Type {
|
||||
Ill_Formed_Arguments,
|
||||
Ill_Formed_Lambda_List,
|
||||
Ill_Formed_List,
|
||||
Not_A_Function,
|
||||
Not_Yet_Implemented,
|
||||
Symbol_Not_Defined,
|
||||
Syntax_Error,
|
||||
Trailing_Garbage,
|
||||
Type_Missmatch,
|
||||
Unbalanced_Parenthesis,
|
||||
Unexpected_Eof,
|
||||
Unknown_Error,
|
||||
Unknown_Keyword_Argument,
|
||||
Wrong_Number_Of_Arguments,
|
||||
Out_Of_Memory,
|
||||
};
|
||||
|
||||
struct Error {
|
||||
Error_Type type;
|
||||
Source_Code_Location* location;
|
||||
};
|
||||
+15
-14
@@ -89,7 +89,7 @@ testresult test_eval_operands() {
|
||||
char operands_string[] = "((eval 1) (+ 1 2) \"okay\" (eval :haha))";
|
||||
Lisp_Object* operands = Parser::parse_single_expression(operands_string);
|
||||
int operands_length;
|
||||
operands = eval_arguments(operands, create_built_ins_environment(), &operands_length);
|
||||
operands = eval_arguments(operands, Memory::create_built_ins_environment(), &operands_length);
|
||||
|
||||
assert_no_error(error);
|
||||
assert_equal_int(list_length(operands), 4);
|
||||
@@ -233,7 +233,7 @@ testresult test_parse_expression() {
|
||||
testresult test_built_in_add() {
|
||||
char exp_string[] = "(+ 10 4)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -246,7 +246,7 @@ testresult test_built_in_add() {
|
||||
testresult test_built_in_substract() {
|
||||
char exp_string[] = "(- 10 4)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -260,7 +260,7 @@ testresult test_built_in_substract() {
|
||||
testresult test_built_in_multiply() {
|
||||
char exp_string[] = "(* 10 4)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -274,7 +274,7 @@ testresult test_built_in_multiply() {
|
||||
testresult test_built_in_divide() {
|
||||
char exp_string[] = "(/ 20 4)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_null(error);
|
||||
assert_not_null(result);
|
||||
@@ -288,7 +288,7 @@ testresult test_built_in_divide() {
|
||||
testresult test_built_in_if() {
|
||||
char exp_string1[] = "(if 1 4 5)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string1);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -297,7 +297,7 @@ testresult test_built_in_if() {
|
||||
|
||||
char exp_string2[] = "(if () 4 5)";
|
||||
expression = Parser::parse_single_expression(exp_string2);
|
||||
result = eval_expr(expression, create_built_ins_environment());
|
||||
result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -310,7 +310,7 @@ testresult test_built_in_if() {
|
||||
testresult test_built_in_and() {
|
||||
char exp_string1[] = "(and 1 \"asd\" 4)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string1);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -319,7 +319,7 @@ testresult test_built_in_and() {
|
||||
// a false case
|
||||
char exp_string2[] = "(and () \"asd\" 4)";
|
||||
expression = Parser::parse_single_expression(exp_string2);
|
||||
result = eval_expr(expression, create_built_ins_environment());
|
||||
result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -331,7 +331,7 @@ testresult test_built_in_and() {
|
||||
testresult test_built_in_or() {
|
||||
char exp_string1[] = "(or \"asd\" nil)";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string1);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -340,7 +340,7 @@ testresult test_built_in_or() {
|
||||
// a false case
|
||||
char exp_string2[] = "(or () ())";
|
||||
expression = Parser::parse_single_expression(exp_string2);
|
||||
result = eval_expr(expression, create_built_ins_environment());
|
||||
result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -353,7 +353,7 @@ testresult test_built_in_or() {
|
||||
testresult test_built_in_not() {
|
||||
char exp_string1[] = "(not ())";
|
||||
Lisp_Object* expression = Parser::parse_single_expression(exp_string1);
|
||||
Lisp_Object* result = eval_expr(expression, create_built_ins_environment());
|
||||
Lisp_Object* result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
// a true case
|
||||
assert_no_error(error);
|
||||
@@ -363,7 +363,7 @@ testresult test_built_in_not() {
|
||||
// a false case
|
||||
char exp_string2[] = "(not \"asd xD\")";
|
||||
expression = Parser::parse_single_expression(exp_string2);
|
||||
result = eval_expr(expression, create_built_ins_environment());
|
||||
result = eval_expr(expression, Memory::create_built_ins_environment());
|
||||
|
||||
assert_no_error(error);
|
||||
assert_not_null(result);
|
||||
@@ -374,7 +374,8 @@ testresult test_built_in_not() {
|
||||
|
||||
void run_all_tests() {
|
||||
log_level = Log_Level::None;
|
||||
Parser::init(create_built_ins_environment());
|
||||
Memory::init();
|
||||
Parser::init(Memory::create_built_ins_environment());
|
||||
|
||||
printf("-- Parsing --\n");
|
||||
invoke_test(test_parse_atom);
|
||||
|
||||
Reference in New Issue
Block a user