From 6eaaf4cf80f2d31ab0524d2904ff2f5e1c81bafa Mon Sep 17 00:00:00 2001
From: dbaumgarten <mail@dbaumgarten.net>
Date: Wed, 4 Aug 2021 11:33:01 +0200
Subject: [PATCH] Disallow abs() on basic chips #68

---
 pkg/validators/available_ops.go      | 2 +-
 pkg/validators/available_ops_test.go | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkg/validators/available_ops.go b/pkg/validators/available_ops.go
index 5f3a8c7..40076de 100644
--- a/pkg/validators/available_ops.go
+++ b/pkg/validators/available_ops.go
@@ -23,7 +23,7 @@ var unavailableBinaryOps = map[string][]string{
 }
 
 var unavailableUnaryOps = map[string][]string{
-	ChipTypeBasic:        {"!", "sqrt", "sin", "cos", "tan", "asin", "acos", "atan"},
+	ChipTypeBasic:        {"!", "sqrt", "sin", "cos", "tan", "asin", "acos", "atan", "abs"},
 	ChipTypeAdvanced:     {"sin", "cos", "tan", "asin", "acos", "atan"},
 	ChipTypeProfessional: {},
 }
diff --git a/pkg/validators/available_ops_test.go b/pkg/validators/available_ops_test.go
index 1a7fcb0..5f2e4f7 100644
--- a/pkg/validators/available_ops_test.go
+++ b/pkg/validators/available_ops_test.go
@@ -126,6 +126,15 @@ func TestAvailableOps(t *testing.T) {
 			prog:     "x=sin(13)",
 			chiptype: validators.ChipTypeProfessional,
 		},
+		{
+			prog:      "x=abs(13)",
+			chiptype:  validators.ChipTypeBasic,
+			expectErr: true,
+		},
+		{
+			prog:     "x=abs(13)",
+			chiptype: validators.ChipTypeAdvanced,
+		},
 	}
 	for i, entry := range testdata {
 		parsed, err := parser.NewParser().Parse(entry.prog)