Zeubi

src/byte_defs.h

@@ -37,14 +37,6 @@ enum OpTypes {
   OP_vpsh  = 29
 };
 
-enum ValTypes {
-  T_null  = 0,
-  T_int   = 1,
-  T_fix   = 2,
-  T_float = 3,
-  T_str   = 4,
-  T_fn    = 5
-};
 
 enum TypeFlags {
   F_int   =  0x1,
@@ -64,6 +56,21 @@ typedef struct {
 
 } OpDef;
 
+typedef struct {
+
+  uint is_array :  1;
+  uint type     : 15;
+
+} PACKED Tag;
+
+typedef struct {
+
+   Tag params[8];
+   i32 n_param;
+
+
+} FnSignature;
+
 typedef struct {
 
   u8 type; // OpTypes
@@ -106,8 +113,7 @@ typedef struct {
     ValueArray varray;
   };
 
-  uint is_array :  1;
-  uint     type : 15;
+  Tag tag;
 
 } PACKED Value;
 

src/code_defs.h

@@ -1,4 +1,46 @@
+#include "byte_defs.h"
 #include "types.h"
+#include "hash.h"
 
 #pragma once
 
+#define SYMBOL_MAP_S (1024*16)
+
+enum StatementTypes {
+  ST_None    = 0, // Not processed yet
+  ST_Call    = 1, // Any kind of function call
+  ST_Builtin = 2, // All special builtins (var, declarations, control flow...)
+  ST_Const   = 3, // Constant
+  ST_Var     = 4  // Variable
+};
+
+enum BuiltinStatements {
+
+};
+
+struct Statement;
+
+typedef struct Statement {
+
+  i32 type;
+  i32 is_const; // Statement is constant, != is a constant
+  struct Statement *children;
+  i32 child_n;
+  enum {
+    i32 fn_id;
+    i32 builtin_type;
+    Value cons;
+  }
+
+} Statement;
+
+// In practice, this is allocated in parse.c
+typedef struct {
+
+  i32 stack_size;
+  i32 curr_statement;
+  HashMap *symbol_map;
+  char **pos_stack; // Pointers to text pos of statements, freed after parsing
+  Statement statements[];
+
+} ASTStack;

src/hash.h

@@ -21,9 +21,10 @@ typedef struct {
 
   MapItem *buffer;
   u32 *bit_free; // Bit map to track usage
-  i32 curr_len;
+  i32 curr_len; // In items
   i32 item_n;
   i32 curr_id;
+  i32 is_heap; // TODO
 
 } HashMap;
 

src/parser.c

@@ -0,0 +1,47 @@
+#include <stdio.h>
+
+#include "types.h"
+#include "byte_defs.h"
+#include "code_defs.h"
+#include "parser.h"
+#include "hash.h"
+
+ASTStack *make_stack(){
+  ASTStack *ret = malloc(sizeof(ASTStack)+sizeof(Statement)*2048);
+  if(!ret)
+    return NULL;
+  ret->pos_stack = malloc(sizeof(void*)*2048);
+  if(!ret->pos_stack)
+    return NULL;
+  ret->symbol_map = heap_hashmap(SYMBOL_MAP_S);
+  ret->stack_size = 2048;
+  return ret;
+}
+
+i32 parenth_stack[256];
+i32 parenth_d;
+
+// Does the final transformation -> recursion end
+int parse_statement_final(StatementStack *stack, Statement *parent, char *str){
+
+}
+
+// Recursively extracts statements
+int parse_statement(StatementStack *stack, Statement *parent, char *str){
+
+}
+
+ASTStack *parse(char *text){
+  ASTStack *stack = make_stack();
+  if(!stack){
+    printf("Couldn't allocate parse buffer !\n");
+    return NULL;
+  }
+
+  i32 ret = 0;
+  do {
+    ret = parse_statement(stack, NULL, text);
+  } while(!ret);
+
+  return stack;
+}

src/parser.h

@@ -0,0 +1,5 @@
+#include "types.h"
+#include "byte_defs.h"
+#include "code_defs.h"
+
+#pragma once

src/types.h

@@ -19,3 +19,12 @@ typedef unsigned int uint;
 #define PACKED __attribute__((__packed__))
 #endif
 
+enum ValTypes {
+  T_null  = 0,
+  T_int   = 1,
+  T_fix   = 2,
+  T_float = 3,
+  T_str   = 4,
+  T_fn    = 5
+};
+