Add support for typed dictionaries, fixes #322

Author: Scony

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Added
  - Added support for multi-statement lambdas (#191)
+ - Added support for typed dictionaries (#322)
 
 ### Changed
  - Removed `private-method-call` linter check due to false positives when calling `super._foo()`

gdtoolkit/parser/gdscript.lark

@@ -288,8 +288,9 @@ eq_dict_element: NAME "=" type_cast
 
 SET: "set"
 GET: "get"
+// TODO: fix whitespaces
 TYPE: NAME ([" "] "." [" "] NAME)*
-TYPE_HINT: NAME ([" "] "." [" "] NAME)* ["[" NAME ([" "] "." [" "] NAME)* "]"]
+TYPE_HINT: TYPE ["[" TYPE [[" "] "," [" "] TYPE] "]"]
 NUMBER: ["+"|"-"] (FLOAT | INT)
 FLOAT: INT _EXP | DECIMAL _EXP?
 _EXP: ("e"|"E") SIGNED_INT

tests/formatter/input-output-pairs/typed_dicts.in.gd

@@ -0,0 +1,4 @@
+func foo():
+	var d : Dictionary[String, int]
+	var d2 :Dictionary[int, int] = { 1: 2 }
+	var d3 :Dictionary[int, int] = { 1: 2,2:3,3:4,4:5,5:6,6:7,7:8,8:9,9:10,10:11,11:12,12:13,13:14,14:15,15:16 }

tests/formatter/input-output-pairs/typed_dicts.out.gd

@@ -0,0 +1,20 @@
+func foo():
+	var d: Dictionary[String, int]
+	var d2: Dictionary[int, int] = {1: 2}
+	var d3: Dictionary[int, int] = {
+		1: 2,
+		2: 3,
+		3: 4,
+		4: 5,
+		5: 6,
+		6: 7,
+		7: 8,
+		8: 9,
+		9: 10,
+		10: 11,
+		11: 12,
+		12: 13,
+		13: 14,
+		14: 15,
+		15: 16
+	}

tests/valid-gd-scripts/typed_dicts.gd

@@ -0,0 +1,4 @@
+func foo():
+	var d : Dictionary[String, int]
+	var d2 :Dictionary[int, int] = { 1: 2 }
+	var d3 :Dictionary[int, int] = { 1: 2,2:3,3:4,4:5,5:6,6:7,7:8,8:9,9:10,10:11,11:12,12:13,13:14,14:15,15:16 }