[vala] Generate <c:include/> tags

[Jürg Billeter <juergbi src gnome org>]

commit 40c913a452f3c95e8808f2715cb5680f42cbaebd
Author: Didier 'Ptitjes <ptitjes free fr>
Date:   Fri Mar 20 15:47:03 2009 +0100

    Generate <c:include/> tags
    
    Signed-off-by: Didier 'Ptitjes <ptitjes free fr>
---
 gobject/valagirwriter.vala |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/gobject/valagirwriter.vala b/gobject/valagirwriter.vala
index ad7582c..0c13c3e 100644
--- a/gobject/valagirwriter.vala
+++ b/gobject/valagirwriter.vala
@@ -68,6 +68,29 @@ public class Vala.GIRWriter : CodeVisitor {
 		stream = null;
 	}
 
+	private void write_c_includes (Namespace ns) {
+		// Collect C header filenames
+		Gee.Set<string> header_filenames = new Gee.HashSet<string> (str_hash, str_equal);
+		foreach (string c_header_filename in ns.get_cheader_filenames ()) {
+			header_filenames.add (c_header_filename);
+		}
+		foreach (Symbol symbol in ns.scope.get_symbol_table ().get_values ()) {
+			foreach (string c_header_filename in symbol.get_cheader_filenames ()) {
+				header_filenames.add (c_header_filename);
+			}
+		}
+
+		// Generate c:include tags
+		foreach (string c_header_filename in header_filenames) {
+			write_c_include (c_header_filename);
+		}
+	}
+
+	private void write_c_include (string name) {
+		write_indent ();
+		stream.printf ("<c:include name=\"%s\"/>\n", name);
+	}
+
 	public override void visit_namespace (Namespace ns) {
 		if (ns.external_package) {
 			return;
@@ -85,6 +108,8 @@ public class Vala.GIRWriter : CodeVisitor {
 			return;
 		}
 
+		write_c_includes (ns);
+
 		write_indent ();
 		stream.printf ("<namespace name=\"%s\" version=\"1.0\">\n", ns.name);
 		indent++;