Patched segault in parser

scripts/small.toy

@@ -1,50 +1,6 @@
-//test the standard library, under a number of different circumstances
+import compound;
-
+var arr: [int] = [1, 2, 3];
-//test basic import
+fn f(_, v: int): int { return v + 1; }
-{
+print arr.map(f);
-	import standard;
-
-	//this depends on external factors, so only check the length
-	assert clock().length() == 24, "import library failed";
-}
 
 
-//test import within a function
-{
-	fn f() {
-		import standard;
-
-		assert clock != null, "import library within function failed";
-
-		return clock;
-	}
-
-	//invoke
-	assert f()().length() == 24, "import library within function and return failed";
-}
-
-
-//test closing over standard library element
-{
-	import standard;
-
-	fn f() {
-		assert clock != null, "import library outside function failed";
-
-		return clock;
-	}
-
-	//invoke
-	assert f()().length() == 24, "import library outside function and return failed";
-}
-
-
-//test importing as an alias
-{
-	import standard as std;
-
-	assert std["clock"]().length() == 24, "import library as alias failed";
-}
-
-
-print "All good";

source/toy_parser.c

@@ -1220,7 +1220,7 @@ static void parsePrecedence(Toy_Parser* parser, Toy_ASTNode** nodeHandle, Preced
 		Toy_emitASTNodeBinary(nodeHandle, rhsNode, opcode);
 
 		//optimise away the constants
-		if (!calcStaticBinaryArithmetic(parser, nodeHandle)) {
+		if (!parser->panic && !calcStaticBinaryArithmetic(parser, nodeHandle)) {
 			return;
 		}
 	}

test/scripts/mustfail/arithmetic-without-operand.toy

@@ -0,0 +1 @@
+print "foo" + + "bar";

test/test_mustfail.c

@@ -96,6 +96,7 @@ int main() {
 		//run each file in tests/scripts/
 		char* filenames[] = {
 			"access-parent-directory.toy",
+			"arithmetic-without-operand.toy",
 			"bad-function-identifier.toy",
 			"declare-types-array.toy",
 			"declare-types-dictionary-key.toy",