Added basic implentation for where

src/parsers/BaseParser.py

@@ -2,8 +2,9 @@ from dataclasses import dataclass
 
 from core.builtin_concepts import BuiltinConcepts
 from core.concept import Concept
-from core.tokenizer import TokenKind, Keywords
+from core.tokenizer import TokenKind, Keywords, Token
 from core.sheerka_logger import get_logger
+import core.utils
 import logging
 
 
@@ -35,8 +36,34 @@ class ErrorNode(Node):
 @dataclass()
 class UnexpectedTokenErrorNode(ErrorNode):
     message: str
+    token: Token
     expected_tokens: list
 
+    def __eq__(self, other):
+        if id(other) == id(self):
+            return True
+
+        if not isinstance(other, UnexpectedTokenErrorNode):
+            return False
+
+        if self.message != other.message:
+            return False
+
+        if self.token.type != other.token.type or self.token.value != other.token.value:
+            return False
+
+        if len(self.expected_tokens) != len(other.expected_tokens):
+            return False
+
+        for i, t in enumerate(self.expected_tokens):
+            if t != other.expected_tokens[i]:
+                return False
+
+        return True
+
+    def __hash__(self):
+        return hash((self.message, self.token, self.expected_tokens))
+
 
 class BaseParser:
     PREFIX = "parsers."
@@ -108,7 +135,7 @@ class BaseParser:
 
         switcher = {
             TokenKind.KEYWORD: lambda t: Keywords(t.value).value,
-            TokenKind.CONCEPT: lambda t: "c:" + t.value + ":",
+            TokenKind.CONCEPT: lambda t: core.utils.str_concept(t.value),
         }
 
         if custom_switcher: