Fix dot-chain corner case, fixes #195

Author: Scony

gdtoolkit/formatter/expression_to_str.py

@@ -178,8 +178,17 @@ def expression_to_str(expression: Node) -> str:
 
 def _operator_chain_based_expression_to_str(expression: Tree) -> str:
     operator_expr_chain = zip(expression.children[1::2], expression.children[2::2])
+
+    def _padding(operator):
+        return "" if operator.value == "." else " "
+
     chain = [
-        f" {expression_to_str(operator)} {expression_to_str(expr)}"
+        "{}{}{}{}".format(
+            _padding(operator),
+            expression_to_str(operator),
+            _padding(operator),
+            expression_to_str(expr),
+        )
         for operator, expr in operator_expr_chain
     ]
     first_expr = expression.children[0]

tests/formatter/input-output-pairs/attribute-expressions.in.gd

@@ -1,5 +1,5 @@
 class X:
 	func foo(xxxxxxxxxxx):
 		var x = xxxxxxxxxxx.y.z
-		var y = xxxxxxxxxxx.yyyyyyyyyyyy.zzzzzzzzzzz.qqqqqqqqqqqqq.wwwwwwwwww.eeeeeeeeeeee.rrrrrrrrrrrrr
+		var y = xxxxxxxxxxx.yyyyyyyyyyyy.zzzzzzzzzzz.qqqqqqqqqqqqq.wwwwwwwwww.eeeeeeeeeeee.rrrrrrrrrrrrr.tttttt
 		var z = xxxxxxxxxxx[[1,]].y.z.x[[1,]].c

tests/formatter/input-output-pairs/attribute-expressions.out.gd

@@ -9,6 +9,7 @@ class X:
 			. wwwwwwwwww
 			. eeeeeeeeeeee
 			. rrrrrrrrrrrrr
+			. tttttt
 		)
 		var z = (
 			xxxxxxxxxxx[[

tests/formatter/input-output-pairs/bug-195-dot-chain-corner-case.in.gd

@@ -0,0 +1,4 @@
+func _start_building_placement(building_prototype, Constants):
+	var _active_blueprint_node = (
+		load(Constants.BUILDING_BLUEPRINTS[building_prototype.resource_path]) . instantiate()
+	)

tests/formatter/input-output-pairs/bug-195-dot-chain-corner-case.out.gd

@@ -0,0 +1,4 @@
+func _start_building_placement(building_prototype, Constants):
+	var _active_blueprint_node = (
+		load(Constants.BUILDING_BLUEPRINTS[building_prototype.resource_path]).instantiate()
+	)