prefix expressions

2024-02-07 10:51:09 -05:00
parent dcc869a6e2
commit cff4375649
5 changed files with 84 additions and 0 deletions
--- a/compiler/compiler_test.go
+++ b/compiler/compiler_test.go
@@ -68,6 +68,15 @@ func TestIntegerArithmetic(t *testing.T) {
 				code.Make(code.OpPop),
 			},
 		},
+		{
+			input:             "-1",
+			expectedConstants: []interface{}{1},
+			expectedInstructions: []code.Instructions{
+				code.Make(code.OpConstant, 0),
+				code.Make(code.OpMinus),
+				code.Make(code.OpPop),
+			},
+		},
 	}

 	runCompilerTests(t, tests)
@@ -151,6 +160,15 @@ func TestBooleanExpressions(t *testing.T) {
 				code.Make(code.OpPop),
 			},
 		},
+		{
+			input:             "!true",
+			expectedConstants: []interface{}{},
+			expectedInstructions: []code.Instructions{
+				code.Make(code.OpTrue),
+				code.Make(code.OpBang),
+				code.Make(code.OpPop),
+			},
+		},
 	}

 	runCompilerTests(t, tests)