make native function support and start working on support for error catching

src/arobject.h

@@ -7,10 +7,13 @@
 #ifndef AROBJECT_H
 #define AROBJECT_H
 
+#include "dynamic_array/darray.h"
 #include "runtime/internals/dynamic_array_armem/darray_armem.h"
 #include "runtime/internals/hashmap/hashmap.h"
 #include <gmp.h>
 
+typedef struct ArErr ArErr; 
+
 typedef struct ArgonObject ArgonObject; // forward declaration
 
 typedef enum ArgonType {
@@ -40,6 +43,7 @@ struct argon_function_struct {
   size_t number_of_parameters;
   struct string_struct *parameters;
   char* path;
+  DArray source_locations;
   uint64_t line;
   uint64_t column;
 };
@@ -54,7 +58,7 @@ struct ArgonObject {
     mpq_t as_number;
     bool as_bool;
     struct string_struct as_str;
-    void *native_fn;
+    ArgonObject* (*native_fn)(size_t argc, ArgonObject**argv, ArErr*err);
     struct argon_function_struct argon_fn;
   } value;
 };

src/runtime/call/call.c

@@ -11,9 +11,8 @@
 #include <math.h>
 #include <stdbool.h>
 #include <stdio.h>
-#include <string.h>
 #include <stdlib.h>
-
+#include <string.h>
 
 #if defined(_WIN32)
 #include <psapi.h>
@@ -70,26 +69,29 @@ double get_memory_usage_mb() {
 }
 #endif
 
-void run_call(Translated *translated, RuntimeState *state) {
+ArErr run_call(Translated *translated, RuntimeState *state) {
   uint8_t from_register = pop_byte(translated, state);
   uint8_t source_location_index = pop_bytecode(translated, state);
-  ArgonObject *object = state->registers[from_register];
+  ArgonObject *original_object = state->registers[from_register];
-  if (object->type != TYPE_FUNCTION) {
+  ArgonObject *object = original_object;
-    ArgonObject *to_call = get_field(object,"__class__");
+  if (object->type != TYPE_FUNCTION && object->type != TYPE_NATIVE_FUNCTION) {
-    while (to_call) {
+    ArgonObject *call_method =
-      ArgonObject *call_object = get_field(to_call,"__call__");
+        get_field_for_class(get_field(object, "__class__", false), "__call__");
-      if (call_object) {
+    if (call_method) {
-        ArgonObject** new_call_args = malloc(sizeof(ArgonObject*)*(*state->call_args_length+1));
+      // Prepend the original object as first argument (self)
-        memcpy(new_call_args+1, *state->call_args, *state->call_args_length);
+      ArgonObject **new_call_args =
-        free(*state->call_args);
+          malloc(sizeof(ArgonObject *) * (*state->call_args_length + 1));
       new_call_args[0] = object;
+      if (*state->call_args_length > 0) {
+        memcpy(new_call_args + 1, *state->call_args, *state->call_args_length);
+      }
+      if (*state->call_args) {
+        free(*state->call_args);
+      }
       *state->call_args = new_call_args;
       (*state->call_args_length)++;
-        object = call_object;
+      object = call_method;
-        break;
     }
-      to_call = get_field(to_call,"__base__");
-    };
   }
   if (object->type == TYPE_FUNCTION) {
     Stack *scope = create_scope(object->value.argon_fn.stack);
@@ -104,18 +106,19 @@ void run_call(Translated *translated, RuntimeState *state) {
                               object->value.argon_fn.bytecode_length,
                               object->value.argon_fn.bytecode_length, false};
     StackFrame new_stackFrame = {
-        (Translated){translated->registerCount, NULL, bytecode_darray,
+        {translated->registerCount, NULL, bytecode_darray,
-                     translated->source_locations, translated->constants,
+                     object->value.argon_fn.source_locations, translated->constants,
                      object->value.argon_fn.path},
-        (RuntimeState){state->registers, 0, state->path,
+        {state->registers, 0, state->path,
                        state->currentStackFramePointer, state->call_args,
-                       state->call_args_length},
+                       state->call_args_length, {}},
         scope,
         *state->currentStackFramePointer,
-        no_err,
         (*state->currentStackFramePointer)->depth + 1};
-    if (((*state->currentStackFramePointer)->depth+1) % STACKFRAME_CHUNKS == 0) {
+    if (((*state->currentStackFramePointer)->depth + 1) % STACKFRAME_CHUNKS ==
-      *state->currentStackFramePointer = checked_malloc(sizeof(StackFrame) * STACKFRAME_CHUNKS);
+        0) {
+      *state->currentStackFramePointer =
+          checked_malloc(sizeof(StackFrame) * STACKFRAME_CHUNKS);
     } else {
       *state->currentStackFramePointer = *state->currentStackFramePointer + 1;
     }
@@ -133,11 +136,21 @@ void run_call(Translated *translated, RuntimeState *state) {
                 (*state->currentStackFramePointer)->depth);
         if (memoryUsage) {
           fprintf(stderr, ", memory usage at %f MB\n", memoryUsage);
-
         } else {
           fprintf(stderr, "\n");
         }
       }
     };
+    return no_err;
+  } else if (object->type == TYPE_NATIVE_FUNCTION) {
+    ArErr err = no_err;
+    state->registers[0] =
+        object->value.native_fn(*state->call_args_length, *state->call_args,
+                                &err);
+    return err;
   }
+  SourceLocation *source_location =
+      darray_get(&translated->source_locations, source_location_index);
+  ArgonObject *type_object_name = get_field_for_class(get_field(object, "__class__", false), "__name__");
+  return create_err(source_location->line, source_location->column, source_location->length, state->path, "Type Error", "'%.*s' object is not callable", (int)type_object_name->value.as_str.length, type_object_name->value.as_str.data);
 }

src/runtime/call/call.h

@@ -8,6 +8,6 @@
 #define runtime_call_H
 #include "../runtime.h"
 
-void run_call(Translated *translated, RuntimeState *state);
+ArErr run_call(Translated *translated, RuntimeState *state);
 
 #endif // runtime_call_H

src/runtime/objects/functions/functions.c

@@ -23,6 +23,7 @@ void load_argon_function(Translated *translated, RuntimeState *state,
   uint64_t length = pop_bytecode(translated, state);
   add_field(object, "__name__", new_string_object(arena_get(&translated->constants, offset), length));
   object->value.argon_fn.path = translated->path;
+  object->value.argon_fn.source_locations = translated->source_locations;
   object->value.argon_fn.number_of_parameters = pop_bytecode(translated, state);
   object->value.argon_fn.parameters =
       ar_alloc(object->value.argon_fn.number_of_parameters * sizeof(struct string_struct));

src/runtime/objects/object.c

@@ -26,7 +26,29 @@ void add_field(ArgonObject *target, char *name, ArgonObject *object) {
                     object, 0);
 }
 
-ArgonObject *get_field(ArgonObject *target, char *name) {
+ArgonObject *get_field_for_class(ArgonObject *target, char *name) {
+  char *field = "__base__";
+  while (target) {
     uint64_t hash = siphash64_bytes(name, strlen(name), siphash_key);
-  return hashmap_lookup_GC(target->dict, hash);
+    ArgonObject *object = hashmap_lookup_GC(target->dict, hash);
+    if (object)
+      return object;
+    hash = siphash64_bytes(field, strlen(field), siphash_key);
+    target = hashmap_lookup_GC(target->dict, hash);
+  }
+  return NULL;
+}
+
+ArgonObject *get_field(ArgonObject *target, char *name, bool recursive) {
+  char *field = "__class__";
+  while (target) {
+    uint64_t hash = siphash64_bytes(name, strlen(name), siphash_key);
+    ArgonObject *object = hashmap_lookup_GC(target->dict, hash);
+    if (!recursive || object)
+      return object;
+    hash = siphash64_bytes(field, strlen(field), siphash_key);
+    target = hashmap_lookup_GC(target->dict, hash);
+    field = "__base__";
+  }
+  return NULL;
 }

src/runtime/objects/object.h

@@ -17,6 +17,8 @@ ArgonObject *new_object();
 
 void add_field(ArgonObject *target, char *name, ArgonObject *object);
 
-ArgonObject *get_field(ArgonObject *target, char *name);
+ArgonObject *get_field_for_class(ArgonObject *target, char *name);
+
+ArgonObject *get_field(ArgonObject *target, char *name, bool recursive);
 
 #endif // OBJECT_H

src/runtime/runtime.c

@@ -214,7 +214,7 @@ ArErr run_instruction(Translated *translated, RuntimeState *state,
         state->registers[to_register];
     break;
   case OP_CALL:
-    run_call(translated, state);
+    return run_call(translated, state);
     // ArgonObject *object = state->registers[from_register];
     // char *field = "__class__";
     // uint64_t hash = siphash64_bytes(field, strlen(field), siphash_key);
@@ -234,7 +234,6 @@ ArErr run_instruction(Translated *translated, RuntimeState *state,
     //   (int)class_name->value.as_str.length, class_name->value.as_str.data,
     //   object);
     // }
-    break;
   default:
     return create_err(0, 0, 0, NULL, "Runtime Error", "Invalid Opcode %#x",
                       opcode);
@@ -249,7 +248,8 @@ RuntimeState init_runtime_state(Translated translated, char *path) {
       path,
       NULL,
       NULL,
-      NULL};
+      0,
+      {}};
   return runtime;
 }
 
@@ -275,19 +275,18 @@ ArErr runtime(Translated translated, RuntimeState state, Stack *stack) {
 
   StackFrame *currentStackFrame =
       checked_malloc(sizeof(StackFrame) * STACKFRAME_CHUNKS);
-  *currentStackFrame = (StackFrame){translated, state, stack, NULL, no_err, 0};
+  *currentStackFrame = (StackFrame){translated, state, stack, NULL, 0};
   currentStackFrame->state.currentStackFramePointer = &currentStackFrame;
   ArErr err = no_err;
   while (currentStackFrame) {
     while (currentStackFrame->state.head <
                currentStackFrame->translated.bytecode.size &&
-           !currentStackFrame->err.exists) {
+           !err.exists) {
-      currentStackFrame->err =
+      err =
           run_instruction(&currentStackFrame->translated,
                           &currentStackFrame->state, &currentStackFrame->stack);
     }
     StackFrame *tempStackFrame = currentStackFrame;
-    err = currentStackFrame->err;
     currentStackFrame = currentStackFrame->previousStackFrame;
     if (tempStackFrame->depth % STACKFRAME_CHUNKS == 0) {
       free(tempStackFrame);

src/runtime/runtime.h

@@ -14,6 +14,12 @@
 typedef struct StackFrame StackFrame;
 typedef struct RuntimeState RuntimeState;
 
+typedef struct ErrorCatch {
+  size_t jump_to;
+  Stack *stack;
+  StackFrame *stackFrame;
+} ErrorCatch; 
+
 typedef struct RuntimeState {
   ArgonObject **registers;
   size_t head;
@@ -21,6 +27,7 @@ typedef struct RuntimeState {
   StackFrame **currentStackFramePointer;
   ArgonObject*** call_args;
   size_t* call_args_length;
+  DArray catch_errors; // ErrorCatch[]
 } RuntimeState;
 
 typedef struct StackFrame {
@@ -28,7 +35,6 @@ typedef struct StackFrame {
   RuntimeState state;
   Stack *stack;
   StackFrame *previousStackFrame;
-  ArErr err;
   uint64_t depth;
 } StackFrame;
 

testing.ar

@@ -1,5 +1,5 @@
 # SPDX-FileCopyrightText: 2025 William Bell
 
 # SPDX-License-Identifier: GPL-3.0-or-later
-let f()=f()
+let f(name)=""
-f()
+f("bruh")()