language: Add expression literals

Add expression literals, so you can set properties of type
Gtk.Expression.

blueprintcompiler/formatter.py

@@ -146,8 +146,10 @@ def format(data, tab_size=2, insert_space=True):
                 is_child_type = False
 
             elif str_item in CLOSING_TOKENS:
-                if str_item == "]" and last_not_whitespace != ",":
+                if str_item == "]" and str(last_not_whitespace) != "[":
                     current_line = current_line[:-1]
+                    if str(last_not_whitespace) != ",":
+                        current_line += ","
                     commit_current_line()
                     current_line = "]"
                 elif str(last_not_whitespace) in OPENING_TOKENS:

blueprintcompiler/language/gobject_signal.py

@@ -143,12 +143,13 @@ class Signal(AstNode):
 
     @property
     def document_symbol(self) -> DocumentSymbol:
+        detail = self.ranges["detail_start", "detail_end"]
         return DocumentSymbol(
             self.full_name,
             SymbolKind.Event,
             self.range,
             self.group.tokens["name"].range,
-            self.ranges["detail_start", "detail_end"].text,
+            detail.text if detail is not None else None,
         )
 
     def get_reference(self, idx: int) -> T.Optional[LocationLink]:

blueprintcompiler/language/values.py

@@ -487,6 +487,14 @@ class ArrayValue(AstNode):
                                 range=quoted_literal.range,
                             )
                         )
+                elif isinstance(value.child, Translated):
+                    errors.append(
+                        CompileError(
+                            "Arrays can't contain translated strings",
+                            range=value.child.range,
+                        )
+                    )
+
             if len(errors) > 0:
                 raise MultipleErrors(errors)
 

blueprintcompiler/lsp.py

@@ -118,6 +118,7 @@ class LanguageServer:
         self.client_capabilities = {}
         self.client_supports_completion_choice = False
         self._open_files: T.Dict[str, OpenFile] = {}
+        self._exited = False
 
     def run(self):
         # Read <doc> tags from gir files. During normal compilation these are
@@ -125,7 +126,7 @@ class LanguageServer:
         xml_reader.PARSE_GIR.add("doc")
 
         try:
-            while True:
+            while not self._exited:
                 line = ""
                 content_len = -1
                 while content_len == -1 or (line != "\n" and line != "\r\n"):
@@ -221,6 +222,14 @@ class LanguageServer:
             },
         )
 
+    @command("shutdown")
+    def shutdown(self, id, params):
+        self._send_response(id, None)
+
+    @command("exit")
+    def exit(self, id, params):
+        self._exited = True
+
     @command("textDocument/didOpen")
     def didOpen(self, id, params):
         doc = params.get("textDocument")

tests/formatting/lists_in.blp

@@ -0,0 +1,21 @@
+using Gtk 4.0;
+
+Box {
+  styles []
+}
+
+Box {
+  styles ["a"]
+}
+
+Box {
+  styles ["a",]
+}
+
+Box {
+  styles ["a", "b"]
+}
+
+Box {
+  styles ["a", "b",]
+}

tests/formatting/lists_out.blp

@@ -0,0 +1,31 @@
+using Gtk 4.0;
+
+Box {
+  styles []
+}
+
+Box {
+  styles [
+    "a",
+  ]
+}
+
+Box {
+  styles [
+    "a",
+  ]
+}
+
+Box {
+  styles [
+    "a",
+    "b",
+  ]
+}
+
+Box {
+  styles [
+    "a",
+    "b",
+  ]
+}

tests/formatting/out.blp

@@ -11,7 +11,7 @@ Overlay {
     notify::icon-name => $on_icon_name_changed(label) swapped;
 
     styles [
-      "destructive"
+      "destructive",
     ]
   }
 

tests/sample_errors/incomplete_signal.blp

@@ -0,0 +1,5 @@
+using Gtk 4.0;
+
+Label {
+  notify::
+}

tests/sample_errors/incomplete_signal.err

@@ -0,0 +1,2 @@
+5,1,0,Expected a signal detail name
+4,9,3,Unexpected tokens

tests/sample_errors/translated_string_array.blp

@@ -0,0 +1,7 @@
+using Gtk 4.0;
+
+StringList {
+  strings: [
+    _("Test")
+  ];
+}

tests/sample_errors/translated_string_array.err

@@ -0,0 +1 @@
+5,5,9,Arrays can't contain translated strings

tests/samples/string_array.blp

@@ -5,6 +5,6 @@ AboutDialog about {
 
   authors: [
     "Jane doe <jane-doe@email.com>",
-    "Jhonny D <jd@email.com>"
+    "Jhonny D <jd@email.com>",
   ];
 }

tests/samples/style.blp

@@ -3,6 +3,6 @@ using Gtk 4.0;
 Label {
   styles [
     "class-1",
-    "class-2"
+    "class-2",
   ]
 }

tests/test_formatter.py

@@ -47,3 +47,4 @@ class TestFormatter(unittest.TestCase):
         self.assert_format_test("correct1.blp", "correct1.blp")
         self.assert_format_test("string_in.blp", "string_out.blp")
         self.assert_format_test("comment_in.blp", "comment_out.blp")
+        self.assert_format_test("lists_in.blp", "lists_out.blp")