From: Jürg Billeter <j@bitron.ch>
Date: Tue, 13 Jan 2009 18:41:04 +0000 (+0000)
Subject: Add -H command-line option to generate C header file for public API, stub
X-Git-Tag: VALA_0_5_6~51
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c386e09e1ef57320a114142faa27946fe6a3cac6;p=thirdparty%2Fvala.git

Add -H command-line option to generate C header file for public API, stub

2009-01-13  Jürg Billeter  <j@bitron.ch>

	* vala/valacodecontext.vala:
	* gobject/valaccodebasemodule.vala:
	* compiler/valacompiler.vala:

	Add -H command-line option to generate C header file for public
	API, stub implementation

svn path=/trunk/; revision=2336
---

diff --git a/ChangeLog b/ChangeLog
index 1bef8a003..780cc2c4d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2009-01-13  Jürg Billeter  <j@bitron.ch>
+
+	* vala/valacodecontext.vala:
+	* gobject/valaccodebasemodule.vala:
+	* compiler/valacompiler.vala:
+
+	Add -H command-line option to generate C header file for public
+	API, stub implementation
+
 2009-01-13  Thijs Vermeir  <thijsvermeir@gmail.com>
 
 	* vapi/packages/gstreamer-0.10/gstreamer-0.10.metadata:
diff --git a/compiler/valacompiler.vala b/compiler/valacompiler.vala
index 59b608c2d..2ac8f73ca 100644
--- a/compiler/valacompiler.vala
+++ b/compiler/valacompiler.vala
@@ -40,6 +40,7 @@ class Vala.Compiler {
 	static string target_glib;
 
 	static bool ccode_only;
+	static string header_filename;
 	static bool compile_only;
 	static string output;
 	static bool debug;
@@ -68,6 +69,7 @@ class Vala.Compiler {
 		{ "directory", 'd', 0, OptionArg.FILENAME, ref directory, "Output directory", "DIRECTORY" },
 		{ "version", 0, 0, OptionArg.NONE, ref version, "Display version number", null },
 		{ "ccode", 'C', 0, OptionArg.NONE, ref ccode_only, "Output C code", null },
+		{ "header", 'H', 0, OptionArg.FILENAME, ref header_filename, "Output C header file", "FILE" },
 		{ "compile", 'c', 0, OptionArg.NONE, ref compile_only, "Compile but do not link", null },
 		{ "output", 'o', 0, OptionArg.FILENAME, ref output, "Place output in file FILE", "FILE" },
 		{ "debug", 'g', 0, OptionArg.NONE, ref debug, "Produce debug information", null },
@@ -166,6 +168,7 @@ class Vala.Compiler {
 
 		context.ccode_only = ccode_only;
 		context.compile_only = compile_only;
+		context.header_filename = header_filename;
 		context.output = output;
 		if (basedir != null) {
 			context.basedir = realpath (basedir);
diff --git a/gobject/valaccodebasemodule.vala b/gobject/valaccodebasemodule.vala
index b8de1e695..5766d9ebb 100644
--- a/gobject/valaccodebasemodule.vala
+++ b/gobject/valaccodebasemodule.vala
@@ -631,6 +631,26 @@ public class Vala.CCodeBaseModule : CCodeModule {
 				file.accept (codegen);
 			}
 		}
+
+		// generate C header file for public API
+		if (context.header_filename != null) {
+			var writer = new CCodeWriter (context.header_filename);
+			if (!writer.open ()) {
+				Report.error (null, "unable to open `%s' for writing".printf (writer.filename));
+				return;
+			}
+			writer.write_newline ();
+			var once = new CCodeOnceSection (get_define_for_filename (writer.filename));
+			once.append (new CCodeNewline ());
+			once.append (new CCodeIdentifier ("G_BEGIN_DECLS"));
+			once.append (new CCodeNewline ());
+			once.append (new CCodeNewline ());
+			once.append (new CCodeIdentifier ("G_END_DECLS"));
+			once.append (new CCodeNewline ());
+			once.append (new CCodeNewline ());
+			once.write (writer);
+			writer.close ();
+		}
 	}
 
 	public override void visit_enum (Enum en) {
diff --git a/vala/valacodecontext.vala b/vala/valacodecontext.vala
index 33e72ef5c..08d7129da 100644
--- a/vala/valacodecontext.vala
+++ b/vala/valacodecontext.vala
@@ -75,6 +75,11 @@ public class Vala.CodeContext {
 	 */
 	public bool ccode_only { get; set; }
 
+	/**
+	 * Output C header file.
+	 */
+	public string header_filename { get; set; }
+
 	/**
 	 * Compile but do not link.
 	 */