[vala] girparser: More complete parsing of field information

[Rico Tzschichholz <ricotz src gnome org>]

commit 92d6204a1c153c73abba73abb826122619c864ee
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Oct 14 09:22:27 2016 +0200

    girparser: More complete parsing of field information
    
    Especially to retrieve available array-length information.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=772902

 vala/valagirparser.vala |   19 +++++++++++++++----
 1 files changed, 15 insertions(+), 4 deletions(-)
---
diff --git a/vala/valagirparser.vala b/vala/valagirparser.vala
index 2a0e18d..96ac8b3 100644
--- a/vala/valagirparser.vala
+++ b/vala/valagirparser.vala
@@ -526,6 +526,8 @@ public class Vala.GirParser : CodeVisitor {
                public UnresolvedSymbol gtype_struct_for;
                // alias-specific
                public DataType base_type;
+               // struct-specific
+               public int array_length_idx = -1;
 
                public bool deprecated = false;
                public uint64 deprecated_version = 0;
@@ -1082,10 +1084,15 @@ public class Vala.GirParser : CodeVisitor {
                                                Node array_length;
                                                if (metadata.has_argument (ArgumentType.ARRAY_LENGTH_FIELD)) {
                                                        array_length = parent.lookup (metadata.get_string 
(ArgumentType.ARRAY_LENGTH_FIELD));
+                                               } else if (array_length_idx > -1 && parent.members.size > 
array_length_idx) {
+                                                       array_length = parent.members[array_length_idx];
                                                } else {
                                                        array_length = parent.lookup ("n_%s".printf 
(field.name));
                                                        if (array_length == null) {
-                                                               array_length = parent.lookup 
("%s_length".printf (field.name));
+                                                               array_length = parent.lookup ("num_%s".printf 
(field.name));
+                                                               if (array_length == null) {
+                                                                       array_length = parent.lookup 
("%s_length".printf (field.name));
+                                                               }
                                                        }
                                                }
                                                if (array_length != null && array_length.symbol is Field) {
@@ -2878,9 +2885,10 @@ public class Vala.GirParser : CodeVisitor {
 
                var comment = parse_symbol_doc ();
 
-               var type = parse_type ();
-               bool no_array_length = true;
-               bool array_null_terminated = false;
+               bool no_array_length;
+               bool array_null_terminated;
+               int array_length_idx;
+               var type = parse_type (null, out array_length_idx, true, out no_array_length, out 
array_null_terminated);
                type = element_get_type (type, true, ref no_array_length, ref array_null_terminated);
 
                string name = current.name;
@@ -2893,6 +2901,9 @@ public class Vala.GirParser : CodeVisitor {
                        field.set_attribute_string ("CCode", "cname", cname);
                }
                if (type is ArrayType) {
+                       if (!no_array_length && !array_null_terminated && array_length_idx > -1) {
+                               current.array_length_idx = array_length_idx;
+                       }
                        if (no_array_length) {
                                field.set_attribute_bool ("CCode", "array_length", false);
                        }