✨ assert-eqv! function.

lib/builtins.c

@@ -2,6 +2,7 @@
 #include "node.h"
 #include "path.h"
 #include "module.h"
+#include "moka.h"
 
 void register_builtins(struct moka* moka)
 {
@@ -9,6 +10,7 @@ void register_builtins(struct moka* moka)
     moka_decl_native(moka, "println", mk_println);
     moka_decl_native(moka, "define", mk_define);
     moka_decl_native(moka, "array", mk_array);
+    moka_decl_native(moka, "assert-eqv!", mk_assert_eqv_mut);
 }
 
 MOKA mk_println(struct moka* moka, struct vec* args)
@@ -64,3 +66,30 @@ MOKA mk_array(struct moka* moka, struct vec* args)
 
     return moka_top(moka);
 }
+
+MOKA mk_assert_eqv_mut(struct moka* moka, struct vec* args)
+{
+    assert(moka);
+    assert(args);
+
+    MOKA lhs = MK_EVAL((MOKA) args->data[0]);
+    MOKA rhs = MK_EVAL((MOKA) args->data[1]);
+    int line = moka_line(moka, lhs);
+
+    char lhs_buf[MK_STRLEN];
+    moka_str(moka, lhs, lhs_buf, MK_STRLEN);
+
+    char rhs_buf[MK_STRLEN];
+    moka_str(moka, rhs, rhs_buf, MK_STRLEN);
+
+    if (!moka_is_eqv(moka, lhs, rhs))
+    {
+        status_push(moka->status, STATUS_ERROR, line,
+                    "assertion failed\nlhs = %s\nrhs = %s",
+                    lhs_buf, rhs_buf);
+
+        return moka_push_bool(moka, false, line); 
+    }
+    
+    return moka_push_bool(moka, true, line); 
+}

lib/builtins.h

@@ -11,5 +11,6 @@ void register_builtins(struct moka* moka);
 MOKA mk_println(struct moka* moka, struct vec* args);
 MOKA mk_define(struct moka* moka, struct vec* args);
 MOKA mk_array(struct moka* moka, struct vec* args);
+MOKA mk_assert_eqv_mut(struct moka* moka, struct vec* args);
 
 #endif

lib/compiler.c

@@ -244,9 +244,6 @@ void compiler_quote(struct compiler* self,
 
     switch (node->kind)
     {
-        case NODE_INT: {
-            compiler_compile(self, node, prog, moka);
-        } break;
         case NODE_IDENT: {
             node->kind = NODE_SYMBOL;
             compiler_compile(self, node, prog, moka);
@@ -262,9 +259,7 @@ void compiler_quote(struct compiler* self,
                                  node->children.size);
         } break;
         default: {
-            fprintf(stderr, "cannot quote node <%s>\n",
+            compiler_compile(self, node, prog, moka);
-                    NodeKindStr[node->kind]);
-            abort();
         } break;
     }
 }

lib/exec.c

@@ -1,4 +1,5 @@
 #include "exec.h"
+#include "status.h"
 
 void exec_init(struct exec* self)
 {
@@ -24,6 +25,11 @@ void exec_prog(struct exec* self,
                    moka,
                    prog,
                    prog->instructions.data[self->pc]);
+
+        if (!status_is_ok(moka->status))
+        {
+            return;
+        }
     }
 }
 
@@ -44,6 +50,11 @@ void exec_instr(struct exec* self,
 
         case OP_CALL: {
             moka_call(moka, param);
+            if (!status_is_ok(moka->status))
+            {
+                return;
+            }
+
             self->pc++;
         } break;
 

lib/lexer.c

@@ -21,6 +21,7 @@ void lexer_init(struct lexer* self,
     str_push(&self->separators, ')');
     str_push(&self->separators, '[');
     str_push(&self->separators, ']');
+    str_push(&self->separators, '\'');
 }
 
 void lexer_free(struct lexer* self)
@@ -425,14 +426,8 @@ bool lexer_is_ident(struct lexer* self, size_t index)
     {
         return false;
     }
-    char c = self->source[index];
 
-    return isalnum(c)
+    return !lexer_is_sep(self, index);
-    || c == '_'
-    || c == '!'
-    || c == '?'
-    || c == '-'
-    || c == ':';
 }
 
 struct token* lexer_try_new_text(struct lexer* self,

lib/module.c

@@ -109,6 +109,10 @@ int module_load_from_str(struct module* self, char const* source)
     exec_init(&exec);
 
     exec_prog(&exec, &self->moka, &self->prog);
+    if (!status_is_ok(self->moka.status))
+    {
+        status_dump(self->moka.status);
+    }
     exec_free(&exec);
 
 free_compiler:

lib/moka.c

@@ -229,6 +229,49 @@ MOKA moka_pop(struct moka* self)
     vec_pop(&frame->stack);
     return val;
 }
+
+int moka_line(struct moka* self, MOKA value)
+{
+    assert(self);
+    struct frame* frame = moka_frame(self);
+    struct value const* val = frame->local_values.data[value];
+    return val->line;
+}
+
+size_t moka_str(struct moka* self, MOKA value, 
+                char* buffer, size_t size)
+{
+    struct frame* frame = moka_frame(self);
+    struct value* val = frame->local_values.data[value];
+
+    if (moka_is(self, value, TY_REF))
+    {
+        val = self->global_values.data[val->data.ref];
+    }
+
+    return value_str(val, buffer, size, self);
+}
+
+bool moka_is_eqv(struct moka* self, MOKA mk_lhs, MOKA mk_rhs)
+{
+    struct frame* frame = moka_frame(self);
+    struct value* lhs = frame->local_values.data[mk_lhs];
+    struct value* rhs = frame->local_values.data[mk_rhs];
+
+    if (lhs->type != rhs->type)
+    {
+        return false;
+    }
+    
+    if (moka_is(self, mk_lhs, TY_REF))
+    {
+        lhs = self->global_values.data[lhs->data.ref];
+        rhs = self->global_values.data[rhs->data.ref];
+    }
+
+    return value_is_eqv(lhs, rhs, self);
+}
+
 bool moka_is(struct moka* self, MOKA value, TypeKind type)
 {
     return moka_type_of(self, value) == type;
@@ -264,7 +307,7 @@ void moka_dump(struct moka* self, MOKA value)
         else
         {
             char buffer[MK_STRLEN];
-            value_str(val, buffer, MK_STRLEN);
+            value_str(val, buffer, MK_STRLEN, self);
 
             printf("%s", buffer);
         }

lib/moka.h

@@ -58,6 +58,11 @@ bool moka_has_top(struct moka* self);
 MOKA moka_top(struct moka* self);
 MOKA moka_pop(struct moka* self);
 
+int moka_line(struct moka* self, MOKA value);
+size_t moka_str(struct moka* self, MOKA value, 
+                char* buffer, size_t size);
+bool moka_is_eqv(struct moka* self, MOKA mk_lhs, MOKA mk_rhs);
+
 bool moka_is(struct moka* self, MOKA value, TypeKind type);
 TypeKind moka_type_of(struct moka* self, MOKA value);
 

lib/value.c

@@ -1,5 +1,6 @@
 #include "value.h"
 #include "node.h"
+#include "moka.h"
 
 MK_ENUM_C(TypeKind, TYPE_KIND);
 
@@ -88,7 +89,10 @@ void value_init_array(struct value* self, struct vec* new_values, int line)
     self->line = line;
 }
 
-size_t value_str(struct value* self, char* buffer, size_t size)
+size_t value_str(struct value* self, 
+                 char* buffer, 
+                 size_t size,
+                 struct moka* moka)
 {
     assert(self);
     assert(buffer);
@@ -132,7 +136,18 @@ size_t value_str(struct value* self, char* buffer, size_t size)
 
         case TY_ARRAY: {
             size_t sz = 0;
-            sz += snprintf(buffer + sz, size - sz, "[array]");
+            sz += snprintf(buffer + sz, size - sz, "[");
+            for (size_t i=0; i<self->data.array->values.size; i++)
+            {
+                if (i > 0)
+                {
+                    sz += snprintf(buffer + sz, size - sz, " ");
+                }
+
+                MOKA val = (MOKA) self->data.array->values.data[i];
+                sz += moka_str(moka, val, buffer + sz, size - sz);
+            }
+            sz += snprintf(buffer + sz, size - sz, "]");
             return sz;
         } break;
 
@@ -142,16 +157,77 @@ size_t value_str(struct value* self, char* buffer, size_t size)
             abort();
         } break;
     }
+}
 
-// void value_init_int(struct value* self, int value, int line);
+bool value_is_eqv(struct value* self,
-// void value_init_float(struct value* self, float value, int line);
+                  struct value* rhs,
-// void value_init_bool(struct value* self, bool value, int line);
+                  struct moka* moka)
-// void value_init_string(struct value* self, char const* value, int line);
+{
-// void value_init_symbol(struct value* self, char const* value, int line);
+    if (self->type != rhs->type)
-// void value_init_ref(struct value* self, size_t value, int line);
+    {
-// void value_init_native(struct value* self, struct native* value, int line);
+        return false;
-// void value_init_lazy(struct value* self, struct node* value, int line);
+    }
-// void value_init_array(struct value* self, struct vec* new_values, int line);
+
+    switch (self->type)
+    {
+        case TY_INT: {
+            return self->data.integer == rhs->data.integer;
+        } break;
+
+        case TY_FLOAT: {
+            return self->data.real == rhs->data.real;
+        } break;
+
+        case TY_BOOL: {
+            return self->data.boolean == rhs->data.boolean;
+        } break;
+
+        case TY_STRING: {
+            return strcmp(self->data.str, rhs->data.str) == 0;
+        } break;
+
+        case TY_SYMBOL: {
+            return strcmp(self->data.sym, rhs->data.sym) == 0;
+        } break;
+
+        case TY_REF: {
+            return self->data.ref == rhs->data.ref;
+        } break;
+
+        case TY_ARRAY: {
+            if (self->data.array->values.size
+                != rhs->data.array->values.size)
+            {
+                return false;
+            }
+
+            for (size_t i=0; i<self->data.array->values.size; i++)
+            {
+                MOKA first = (MOKA) self->data.array->values.data[i];
+                MOKA second = (MOKA) rhs->data.array->values.data[i];
+                if (!moka_is_eqv(moka, first, second))
+                {
+                    return false;
+                }
+            }
+
+            return true;
+        } break;
+
+        case TY_NATIVE: {
+            return false;
+        } break;
+
+        case TY_LAZY: {
+            return true;
+        } break;
+
+        default: {
+            fprintf(stderr, "cannot test eqv on type <%s>\n",
+                    TypeKindStr[self->type]);
+            abort();
+        } break;
+    }
 }
 
 void value_free(struct value* self)
@@ -180,3 +256,6 @@ void value_free(struct value* self)
         free(self->data.array);
     }
 }
+
+
+

lib/value.h

@@ -42,7 +42,14 @@ void value_init_native(struct value* self, struct native* value, int line);
 void value_init_lazy(struct value* self, struct node* value, int line);
 void value_init_array(struct value* self, struct vec* new_values, int line);
 
-size_t value_str(struct value* self, char* buffer, size_t size);
+size_t value_str(struct value* self, 
+                 char* buffer, 
+                 size_t size,
+                 struct moka* moka);
+
+bool value_is_eqv(struct value* self, 
+                  struct value* rhs, 
+                  struct moka* moka);
 
 void value_free(struct value* self);