[vala/0.40] parser: Improve source-location for LocalVariable/DeclarationStatement

[Rico Tzschichholz <ricotz src gnome org>]

commit 60036e2679b56f0a17f8848b70cb8ae77d3b97d5
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Apr 10 14:12:21 2019 +0200

    parser: Improve source-location for LocalVariable/DeclarationStatement

 vala/valaparser.vala | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)
---
diff --git a/vala/valaparser.vala b/vala/valaparser.vala
index 382df65a7..3e92f5502 100644
--- a/vala/valaparser.vala
+++ b/vala/valaparser.vala
@@ -1793,16 +1793,18 @@ public class Vala.Parser : CodeVisitor {
        }
 
        void parse_local_variable_declarations (Block block) throws ParseError {
+               var begin = get_location ();
                DataType variable_type;
                if (accept (TokenType.VAR)) {
                        variable_type = null;
                } else {
                        variable_type = parse_type (true, true);
                }
+               bool is_first = true;
                do {
                        if (variable_type == null && accept (TokenType.OPEN_PARENS)) {
                                // tuple
-                               var begin = get_location ();
+                               begin = get_location ();
 
                                string[] identifiers = {};
                                do {
@@ -1826,12 +1828,18 @@ public class Vala.Parser : CodeVisitor {
                                continue;
                        }
 
+                       if (!is_first) {
+                               begin = get_location ();
+                       } else {
+                               is_first = false;
+                       }
+
                        DataType type_copy = null;
                        if (variable_type != null) {
                                type_copy = variable_type.copy ();
                        }
                        var local = parse_local_variable (type_copy);
-                       block.add_statement (new DeclarationStatement (local, local.source_reference));
+                       block.add_statement (new DeclarationStatement (local, get_src (begin)));
                } while (accept (TokenType.COMMA));
                expect (TokenType.SEMICOLON);
        }
@@ -1839,14 +1847,14 @@ public class Vala.Parser : CodeVisitor {
        LocalVariable parse_local_variable (DataType? variable_type) throws ParseError {
                var begin = get_location ();
                string id = parse_identifier ();
-
                var type = parse_inline_array_type (variable_type);
+               var src = get_src (begin);
 
                Expression initializer = null;
                if (accept (TokenType.ASSIGN)) {
                        initializer = parse_expression ();
                }
-               return new LocalVariable (type, id, initializer, get_src (begin));
+               return new LocalVariable (type, id, initializer, src);
        }
 
        void parse_local_constant_declarations (Block block) throws ParseError {