[valadoc] libvaladoc: @parameter: check for existence

[Florian Brosch <flobrosch src gnome org>]

commit 921a85b1618ebc4a2f92c1c786b6b9b84f1ffb38
Author: Florian Brosch <flo brosch gmail com>
Date:   Fri Jan 6 16:26:31 2012 +0100

    libvaladoc: @parameter: check for existence

 icons/devhelpstyle.css                  |    4 ++++
 icons/style.css                         |    4 ++++
 icons/wikistyle.css                     |    4 ++++
 src/libvaladoc/html/htmlrenderer.vala   |    7 ++++++-
 src/libvaladoc/taglets/tagletparam.vala |   28 +++++++++++++++++++++++++++-
 5 files changed, 45 insertions(+), 2 deletions(-)
---
diff --git a/icons/devhelpstyle.css b/icons/devhelpstyle.css
index c52052a..d6c9443 100644
--- a/icons/devhelpstyle.css
+++ b/icons/devhelpstyle.css
@@ -202,6 +202,10 @@ h3.main_title {
 .main_parameter_table_text, .main_errordomain_table_text, .main_enum_table_text {
 }
 
+.main_parameter_table_unknown_parameter {
+	color: GREY;
+}
+
 .main_parameter_table_name, .main_errordomain_table_name, .main_enum_table_name {
 	vertical-align: top;
 	text-align: right;
diff --git a/icons/style.css b/icons/style.css
index c4b0c79..919fba6 100644
--- a/icons/style.css
+++ b/icons/style.css
@@ -217,6 +217,10 @@ h3.main_title {
 .main_parameter_table_text, .main_errordomain_table_text, .main_enum_table_text {
 }
 
+.main_parameter_table_unknown_parameter {
+	color: GREY;
+}
+
 .main_parameter_table_name, .main_errordomain_table_name, .main_enum_table_name {
 	vertical-align: top;
 	text-align: right;
diff --git a/icons/wikistyle.css b/icons/wikistyle.css
index a3d8e4b..d9aab37 100644
--- a/icons/wikistyle.css
+++ b/icons/wikistyle.css
@@ -203,6 +203,10 @@ h3.main_title {
 .main_parameter_table_text, .main_errordomain_table_text, .main_enum_table_text {
 }
 
+.main_parameter_table_unknown_parameter {
+	color: GREY;
+}
+
 .main_parameter_table_name, .main_errordomain_table_name, .main_enum_table_name {
 	vertical-align: top;
 	text-align: right;
diff --git a/src/libvaladoc/html/htmlrenderer.vala b/src/libvaladoc/html/htmlrenderer.vala
index 2235380..d0ea807 100755
--- a/src/libvaladoc/html/htmlrenderer.vala
+++ b/src/libvaladoc/html/htmlrenderer.vala
@@ -127,7 +127,12 @@ public class Valadoc.Html.HtmlRenderer : ContentRenderer {
 			taglets,
 			(taglet) => {
 				var param = taglet as Taglets.Param;
-				writer.start_tag ("tr");
+				string[]? unknown_parameter_css = null;
+				if (param.parameter == null) {
+					unknown_parameter_css = {"class", "main_parameter_table_unknown_parameter"};
+				}
+
+				writer.start_tag ("tr", unknown_parameter_css);
 				writer.start_tag ("td", {"class", "main_parameter_table_name"}).text (param.parameter_name).end_tag ("td");
 				writer.start_tag ("td");
 				param.accept_children (this);
diff --git a/src/libvaladoc/taglets/tagletparam.vala b/src/libvaladoc/taglets/tagletparam.vala
index ed5505e..db0d962 100755
--- a/src/libvaladoc/taglets/tagletparam.vala
+++ b/src/libvaladoc/taglets/tagletparam.vala
@@ -27,6 +27,8 @@ using Valadoc.Content;
 public class Valadoc.Taglets.Param : InlineContent, Taglet, Block {
 	public string parameter_name { internal set; get; }
 
+	public Api.Symbol? parameter { private set; get; }
+
 	public Rule? get_parser_rule (Rule run_rule) {
 		return Rule.seq ({
 			Rule.option ({ Rule.many ({ TokenType.SPACE }) }),
@@ -37,7 +39,31 @@ public class Valadoc.Taglets.Param : InlineContent, Taglet, Block {
 
 
 	public override void check (Api.Tree api_root, Api.Node container, ErrorReporter reporter, Settings settings) {
-		// TODO check for the existence of such a parameter
+		// Check for the existence of such a parameter
+
+		this.parameter = null;
+
+		if (parameter_name == "...") {
+			Gee.List<Api.Node> params = container.get_children_by_type (Api.NodeType.FORMAL_PARAMETER, false);
+			foreach (Api.Node param in params) {
+				if (((Api.FormalParameter) param).ellipsis) {
+					this.parameter = (Api.Symbol) param;
+					break;
+				}
+			}
+		} else {
+			Gee.List<Api.Node> params = container.get_children_by_types ({Api.NodeType.FORMAL_PARAMETER, Api.NodeType.TYPE_PARAMETER}, false);
+			foreach (Api.Node param in params) {
+				if (param.name == parameter_name) {
+					this.parameter = (Api.Symbol) param;
+					break;
+				}
+			}
+		}
+
+		if (this.parameter == null) {
+			reporter.simple_warning ("%s: Unknown parameter `%s'", container.get_full_name (), parameter_name);
+		}
 
 		base.check (api_root, container, reporter, settings);
 	}