From: Rico Tzschichholz <ricotz@ubuntu.com>
Date: Thu, 8 Nov 2018 11:45:24 +0000 (+0100)
Subject: vala: Add CodeNode.copy_attribute_*() helper methods
X-Git-Tag: 0.43.1~123
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=295e31b22195c5fad4ae07ae0818e5ed287813fc;p=thirdparty%2Fvala.git

vala: Add CodeNode.copy_attribute_*() helper methods

Provides an easy way to copy a specific attribute argument from another
code node if the source has it set.
---

diff --git a/vala/valacodenode.vala b/vala/valacodenode.vala
index 216b5604f..a4002bf9a 100644
--- a/vala/valacodenode.vala
+++ b/vala/valacodenode.vala
@@ -295,6 +295,70 @@ public abstract class Vala.CodeNode {
 		a.add_argument (argument, value.to_string ());
 	}
 
+	/**
+	 * Copy the string value of the specified attribute argument if available.
+	 *
+	 * @param source    codenode to copy from
+	 * @param attribute attribute name
+	 * @param argument  argument name
+	 * @return          true if successful
+	 */
+	public bool copy_attribute_string (CodeNode source, string attribute, string argument) {
+		if (source.has_attribute_argument (attribute, argument)) {
+			set_attribute_string (attribute, argument, source.get_attribute_string (attribute, argument));
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Copy the integer value of the specified attribute argument if available.
+	 *
+	 * @param source    codenode to copy from
+	 * @param attribute attribute name
+	 * @param argument  argument name
+	 * @return          true if successful
+	 */
+	public bool copy_attribute_integer (CodeNode source, string attribute, string argument) {
+		if (source.has_attribute_argument (attribute, argument)) {
+			set_attribute_integer (attribute, argument, source.get_attribute_integer (attribute, argument));
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Copy the double value of the specified attribute argument if available.
+	 *
+	 * @param source    codenode to copy from
+	 * @param attribute attribute name
+	 * @param argument  argument name
+	 * @return          true if successful
+	 */
+	public bool copy_attribute_double (CodeNode source, string attribute, string argument) {
+		if (source.has_attribute_argument (attribute, argument)) {
+			set_attribute_double (attribute, argument, source.get_attribute_double (attribute, argument));
+			return true;
+		}
+		return false;
+	}
+
+	/**
+	 * Copy the boolean value of the specified attribute argument if available.
+	 *
+	 * @param source    codenode to copy from
+	 * @param attribute attribute name
+	 * @param argument  argument name
+	 * @return          true if successful
+	 */
+	public bool copy_attribute_bool (CodeNode source, string attribute, string argument) {
+		if (source.has_attribute_argument (attribute, argument)) {
+			set_attribute_bool (attribute, argument, source.get_attribute_bool (attribute, argument));
+			return true;
+		}
+		return false;
+	}
+
 	/**
 	 * Returns the attribute cache at the specified index.
 	 *