Fix if-block parsing to handle newlines

schala-lang/src/eval.rs

@@ -535,7 +535,10 @@ if a { is 15 -> "x", is 10 -> "y" }
   fn boolean_pattern() {
     let source = r#"
 let a = true
-if a { is true -> "x", is false -> "y" }
+if a { 
+  is true -> "x",
+  is false -> "y"
+}
 "#;
     test_in_fresh_env!(source, "\"x\"");
   }

schala-lang/src/parsing.rs

@@ -694,7 +694,25 @@ impl Parser {
   });
 
   parse_method!(guard_block(&mut self) -> ParseResult<IfExpressionBody> {
-    let guards = delimited!(self, LCurlyBrace, guard_arm, Comma, RCurlyBrace);
+    //TODO - delimited! isn't sophisticated enough to do thisa
+    //let guards = delimited!(self, LCurlyBrace, guard_arm, Comma, RCurlyBrace);
+    expect!(self, LCurlyBrace);
+    let mut guards = vec![];
+    loop {
+      while let Newline = self.peek() {
+        self.next();
+      }
+      let guard_arm = self.guard_arm()?;
+      guards.push(guard_arm);
+      while let Newline = self.peek() {
+        self.next();
+      }
+      match self.peek() {
+        Comma => {self.next(); continue },
+        _ => break
+      }
+    }
+    expect!(self, RCurlyBrace);
     Ok(IfExpressionBody::GuardList(guards))
   });