Support for LOGICAL AND operator in DirectX backend (#232)

Signed-off-by: Jyotin Goel <[email protected]>

crosstl/backend/DirectX/DirectxLexer.py

@@ -50,7 +50,7 @@
     ("ASSIGN_OR", r"\|="),
     ("ASSIGN_AND", r"\&="),
     ("BITWISE_XOR", r"\^"),
-    ("AND", r"&&"),
+    ("LOGICAL_AND", r"&&"),
     ("LOGICAL_OR", r"\|\|"),
     ("BITWISE_OR", r"\|"),
     ("DOT", r"\."),

crosstl/backend/DirectX/DirectxParser.py

@@ -437,9 +437,9 @@ def parse_logical_or(self):
 
     def parse_logical_and(self):
         left = self.parse_equality()
-        while self.current_token[0] == "AND":
+        while self.current_token[0] == "LOGICAL_AND":
             op = self.current_token[1]
-            self.eat("AND")
+            self.eat("LOGICAL_AND")
             right = self.parse_equality()
             left = BinaryOpNode(left, op, right)
         return left

tests/test_backend/test_directx/test_lexer.py

@@ -193,5 +193,16 @@ def test_logical_or_tokenization():
         pytest.fail("logical_or tokenization is not implemented.")
 
 
+def test_logical_and_tokenization():
+    code = """
+        bool val_0 = true;
+        bool val_1 = val_0 && false;
+    """
+    try:
+        tokenize_code(code)
+    except SyntaxError:
+        pytest.fail("logical_and tokenization is not implemented.")
+
+
 if __name__ == "__main__":
     pytest.main()

tests/test_backend/test_directx/test_parser.py

@@ -282,5 +282,30 @@ def test_logical_or_ops_parsing():
         pytest.fail("logical_or_ops not implemented.")
 
 
+def test_logical_and_ops_parsing():
+    code = """
+            PSOutput PSMain(PSInput input) {
+                PSOutput output;
+                output.out_color = float4(0.0, 0.0, 0.0, 1.0);
+                // Test case for logical AND
+                bool condition1 = true; // First condition
+                bool condition2 = false; // Second condition
+                if (condition1 && condition2) {
+                    // both the condition is true
+                    output.out_color = float4(1.0, 0.0, 0.0, 1.0); // Set color to red
+                } else {
+                    // any one of the condition is false
+                    output.out_color = float4(0.0, 1.0, 0.0, 1.0); // Set color to green
+                }
+                return output;
+            }
+        """
+    try:
+        tokens = tokenize_code(code)
+        parse_code(tokens)
+    except SyntaxError:
+        pytest.fail("logical_and_ops not implemented.")
+
+
 if __name__ == "__main__":
     pytest.main()