3 files changed, 30 insertions, 3 deletions

diff --git a/include/ast.h b/include/ast.h
index fb0f275..05bb6ee 100644
--- a/include/ast.h
+++ b/include/ast.h
@@ -5,6 +5,7 @@
 #include "std/buffer.h"
 #include "std/misc.h"
 #include "std/scoped_allocator.h"
+#include "binop_type.h"
 
 typedef struct FunctionDecl FunctionDecl;
 typedef struct FunctionCall FunctionCall;
@@ -13,6 +14,7 @@ typedef struct Import Import;
 typedef struct String String;
 typedef struct Variable Variable;
 typedef struct Number Number;
+typedef struct Binop Binop;
 
 typedef union {
     FunctionDecl *func_decl;
@@ -22,6 +24,7 @@ typedef union {
     String *string;
     Number *number;
     Variable *variable;
+    Binop *binop;
 } AstValue;
 
 typedef enum {
@@ -32,7 +35,8 @@ typedef enum {
     AST_IMPORT,
     AST_STRING,
     AST_NUMBER,
-    AST_VARIABLE
+    AST_VARIABLE,
+    AST_BINOP
 } AstType;
 
 typedef struct {
@@ -52,6 +56,7 @@ struct FunctionCall {
 
 struct LhsExpr {
     int isConst;
+    BufferView type_name;
     BufferView var_name;
     Ast rhs_expr;
 };
@@ -76,6 +81,12 @@ struct Variable {
     BufferView name;
 };
 
+struct Binop {
+    Ast lhs;
+    Ast rhs;
+    BinopType type;
+};
+
 Ast ast_none();
 
 CHECK_RESULT int funcdecl_init(FunctionDecl *self, ScopedAllocator *allocator);
@@ -85,5 +96,6 @@ void lhsexpr_init(LhsExpr *self, int isConst, BufferView var_name);
 void import_init(Import *self, BufferView path);
 CHECK_RESULT int string_init(String *self, BufferView str);
 void number_init(Number *self, i64 value, bool is_integer);
+void binop_init(Binop *self);
 
 #endif
diff --git a/include/binop_type.h b/include/binop_type.h
new file mode 100644
index 0000000..d04f9d7
--- /dev/null
+++ b/include/binop_type.h
@@ -0,0 +1,12 @@
+#ifndef AMALGAM_BINOP_TYPE_H
+#define AMALGAM_BINOP_TYPE_H
+
+typedef enum {
+    BINOP_ADD,
+    BINOP_SUB,
+    BINOP_MUL,
+    BINOP_DIV,
+    BINOP_DOT
+} BinopType;
+
+#endif
\ No newline at end of file
diff --git a/include/tokenizer.h b/include/tokenizer.h
index c58917f..21e93ee 100644
--- a/include/tokenizer.h
+++ b/include/tokenizer.h
@@ -3,6 +3,7 @@
 
 #include "std/buffer_view.h"
 #include "std/misc.h"
+#include "binop_type.h"
 
 #define TOKENIZER_OK 0
 /* General error */
@@ -25,8 +26,9 @@ typedef enum {
     TOK_CLOSING_BRACE,
     TOK_IMPORT,
     TOK_NUMBER,
-    TOK_DOT,
-    TOK_SEMICOLON
+    TOK_SEMICOLON,
+    TOK_COLON,
+    TOK_BINOP
 } Token;
 
 typedef struct {
@@ -47,6 +49,7 @@ typedef struct {
         BufferView string;
         i64 integer;
         f64 floating;
+        BinopType binop_type;
     } value;
     bool number_is_integer;
 } Tokenizer;