vala: Let methods return an unowned reference to internal collections

Correctly state ownership in documentation since those were never a copy.

35 files changed, 124 insertions, 124 deletions

diff --git a/vala/valaarraycreationexpression.vala b/vala/valaarraycreationexpression.vala
index c61e6bee0..841d8db42 100644
--- a/vala/valaarraycreationexpression.vala
+++ b/vala/valaarraycreationexpression.vala
@@ -92,7 +92,7 @@ public class Vala.ArrayCreationExpression : Expression {
 	/**
 	 * Get the sizes for all dimensions ascending from left to right.
 	 */
-	public List<Expression> get_sizes () {
+	public unowned List<Expression> get_sizes () {
 		return sizes;
 	}
 
diff --git a/vala/valabasicblock.vala b/vala/valabasicblock.vala
index 759bb9ce0..26648aed6 100644
--- a/vala/valabasicblock.vala
+++ b/vala/valabasicblock.vala
@@ -56,7 +56,7 @@ public class Vala.BasicBlock {
 		nodes.add (node);
 	}
 
-	public List<CodeNode> get_nodes () {
+	public unowned List<CodeNode> get_nodes () {
 		return nodes;
 	}
 
@@ -69,11 +69,11 @@ public class Vala.BasicBlock {
 		}
 	}
 
-	public List<weak BasicBlock> get_predecessors () {
+	public unowned List<weak BasicBlock> get_predecessors () {
 		return predecessors;
 	}
 
-	public List<weak BasicBlock> get_successors () {
+	public unowned List<weak BasicBlock> get_successors () {
 		return successors;
 	}
 
@@ -82,7 +82,7 @@ public class Vala.BasicBlock {
 		block.parent = this;
 	}
 
-	public List<weak BasicBlock> get_children () {
+	public unowned List<weak BasicBlock> get_children () {
 		return children;
 	}
 
@@ -90,7 +90,7 @@ public class Vala.BasicBlock {
 		df.add (block);
 	}
 
-	public Set<weak BasicBlock> get_dominator_frontier () {
+	public unowned Set<weak BasicBlock> get_dominator_frontier () {
 		return df;
 	}
 
@@ -98,7 +98,7 @@ public class Vala.BasicBlock {
 		phi_functions.add (phi);
 	}
 
-	public Set<PhiFunction> get_phi_functions () {
+	public unowned Set<PhiFunction> get_phi_functions () {
 		return phi_functions;
 	}
 }
diff --git a/vala/valablock.vala b/vala/valablock.vala
index 7419b5b9d..ae30c8b15 100644
--- a/vala/valablock.vala
+++ b/vala/valablock.vala
@@ -104,11 +104,11 @@ public class Vala.Block : Symbol, Statement {
 	}
 
 	/**
-	 * Returns a copy of the list of local variables.
+	 * Returns the list of local variables.
 	 *
 	 * @return variable declarator list
 	 */
-	public List<LocalVariable> get_local_variables () {
+	public unowned List<LocalVariable> get_local_variables () {
 		return local_variables;
 	}
 
@@ -130,7 +130,7 @@ public class Vala.Block : Symbol, Statement {
 	 *
 	 * @return constants list
 	 */
-	public List<Constant> get_local_constants () {
+	public unowned List<Constant> get_local_constants () {
 		return local_constants;
 	}
 
diff --git a/vala/valacallable.vala b/vala/valacallable.vala
index 5b29aa9ff..b8bf03632 100644
--- a/vala/valacallable.vala
+++ b/vala/valacallable.vala
@@ -41,5 +41,5 @@ public interface Vala.Callable : CodeNode {
 	/**
 	 * Returns the parameter list.
 	 */
-	public abstract List<Parameter> get_parameters ();
+	public abstract unowned List<Parameter> get_parameters ();
 }
diff --git a/vala/valaclass.vala b/vala/valaclass.vala
index 933a67c26..c8baeaab7 100644
--- a/vala/valaclass.vala
+++ b/vala/valaclass.vala
@@ -240,11 +240,11 @@ public class Vala.Class : ObjectTypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the base type list.
+	 * Returns the base type list.
 	 *
 	 * @return list of base types
 	 */
-	public List<DataType> get_base_types () {
+	public unowned List<DataType> get_base_types () {
 		return base_types;
 	}
 
diff --git a/vala/valacodecontext.vala b/vala/valacodecontext.vala
index 412b20eeb..47c1cede4 100644
--- a/vala/valacodecontext.vala
+++ b/vala/valacodecontext.vala
@@ -285,20 +285,20 @@ public class Vala.CodeContext {
 	}
 
 	/**
-	 * Returns a copy of the list of source files.
+	 * Returns the list of source files.
 	 *
 	 * @return list of source files
 	 */
-	public List<SourceFile> get_source_files () {
+	public unowned List<SourceFile> get_source_files () {
 		return source_files;
 	}
 
 	/**
-	 * Returns a copy of the list of C source files.
+	 * Returns the list of C source files.
 	 *
 	 * @return list of C source files
 	 */
-	public List<string> get_c_source_files () {
+	public unowned List<string> get_c_source_files () {
 		return c_source_files;
 	}
 
@@ -337,11 +337,11 @@ public class Vala.CodeContext {
 	}
 
 	/**
-	 * Returns a copy of the list of used packages.
+	 * Returns the list of used packages.
 	 *
 	 * @return list of used packages
 	 */
-	public List<string> get_packages () {
+	public unowned List<string> get_packages () {
 		return packages;
 	}
 
diff --git a/vala/valadatatype.vala b/vala/valadatatype.vala
index 608178fde..2580eb6e8 100644
--- a/vala/valadatatype.vala
+++ b/vala/valadatatype.vala
@@ -71,11 +71,11 @@ public abstract class Vala.DataType : CodeNode {
 	}
 
 	/**
-	 * Returns a copy of the list of generic type arguments.
+	 * Returns the list of generic type arguments.
 	 *
 	 * @return type argument list
 	 */
-	public List<DataType> get_type_arguments () {
+	public unowned List<DataType> get_type_arguments () {
 		if (type_argument_list != null) {
 			return type_argument_list;
 		}
@@ -378,11 +378,11 @@ public abstract class Vala.DataType : CodeNode {
 	}
 
 	/**
-	 * Returns copy of the list of invocation parameters.
+	 * Returns the list of invocation parameters.
 	 *
 	 * @return parameter list
 	 */
-	public virtual List<Parameter>? get_parameters () {
+	public virtual unowned List<Parameter>? get_parameters () {
 		return null;
 	}
 
diff --git a/vala/valadelegate.vala b/vala/valadelegate.vala
index 4b4e7074a..813a73479 100644
--- a/vala/valadelegate.vala
+++ b/vala/valadelegate.vala
@@ -93,7 +93,7 @@ public class Vala.Delegate : TypeSymbol, Callable {
 		scope.add (p.name, p);
 	}
 
-	public List<TypeParameter> get_type_parameters () {
+	public unowned List<TypeParameter> get_type_parameters () {
 		return type_parameters;
 	}
 
@@ -123,11 +123,11 @@ public class Vala.Delegate : TypeSymbol, Callable {
 	}
 
 	/**
-	 * Return copy of parameter list.
+	 * Return the parameter list.
 	 *
 	 * @return parameter list
 	 */
-	public List<Parameter> get_parameters () {
+	public unowned List<Parameter> get_parameters () {
 		return parameters;
 	}
 
diff --git a/vala/valadelegatetype.vala b/vala/valadelegatetype.vala
index 0220b0168..cbf720b8a 100644
--- a/vala/valadelegatetype.vala
+++ b/vala/valadelegatetype.vala
@@ -43,7 +43,7 @@ public class Vala.DelegateType : CallableType {
 		return delegate_symbol.return_type;
 	}
 
-	public override List<Parameter>? get_parameters () {
+	public override unowned List<Parameter>? get_parameters () {
 		return delegate_symbol.get_parameters ();
 	}
 
diff --git a/vala/valaelementaccess.vala b/vala/valaelementaccess.vala
index b847e9515..90c718ff8 100644
--- a/vala/valaelementaccess.vala
+++ b/vala/valaelementaccess.vala
@@ -53,7 +53,7 @@ public class Vala.ElementAccess : Expression {
 		index.parent_node = this;
 	}
 
-	public List<Expression> get_indices () {
+	public unowned List<Expression> get_indices () {
 		return indices;
 	}
 
diff --git a/vala/valaenum.vala b/vala/valaenum.vala
index 508ef12ef..592e6e7a8 100644
--- a/vala/valaenum.vala
+++ b/vala/valaenum.vala
@@ -103,29 +103,29 @@ public class Vala.Enum : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the list of enum values.
+	 * Returns the list of enum values.
 	 *
 	 * @return list of enum values
 	 */
-	public List<EnumValue> get_values () {
+	public unowned List<EnumValue> get_values () {
 		return values;
 	}
 
 	/**
-	 * Returns a copy of the list of methods.
+	 * Returns the list of methods.
 	 *
 	 * @return list of methods
 	 */
-	public List<Method> get_methods () {
+	public unowned List<Method> get_methods () {
 		return methods;
 	}
 
 	/**
-	 * Returns a copy of the list of constants.
+	 * Returns the list of constants.
 	 *
 	 * @return list of constants
 	 */
-	public List<Constant> get_constants () {
+	public unowned List<Constant> get_constants () {
 		return constants;
 	}
 
diff --git a/vala/valaerrordomain.vala b/vala/valaerrordomain.vala
index 0b462849e..311f29975 100644
--- a/vala/valaerrordomain.vala
+++ b/vala/valaerrordomain.vala
@@ -72,20 +72,20 @@ public class Vala.ErrorDomain : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the list of error codes.
+	 * Returns the list of error codes.
 	 *
 	 * @return list of error codes
 	 */
-	public List<ErrorCode> get_codes () {
+	public unowned List<ErrorCode> get_codes () {
 		return codes;
 	}
 
 	/**
-	 * Returns a copy of the list of methods.
+	 * Returns the list of methods.
 	 *
 	 * @return list of methods
 	 */
-	public List<Method> get_methods () {
+	public unowned List<Method> get_methods () {
 		return methods;
 	}
 
diff --git a/vala/valaforstatement.vala b/vala/valaforstatement.vala
index aa70cee0b..19501c614 100644
--- a/vala/valaforstatement.vala
+++ b/vala/valaforstatement.vala
@@ -85,11 +85,11 @@ public class Vala.ForStatement : CodeNode, Statement {
 	}
 
 	/**
-	 * Returns a copy of the list of initializers.
+	 * Returns the list of initializers.
 	 *
 	 * @return initializer list
 	 */
-	public List<Expression> get_initializer () {
+	public unowned List<Expression> get_initializer () {
 		return initializer;
 	}
 
@@ -104,11 +104,11 @@ public class Vala.ForStatement : CodeNode, Statement {
 	}
 
 	/**
-	 * Returns a copy of the iterator.
+	 * Returns the iterator.
 	 *
 	 * @return iterator
 	 */
-	public List<Expression> get_iterator () {
+	public unowned List<Expression> get_iterator () {
 		return iterator;
 	}
 
diff --git a/vala/valainitializerlist.vala b/vala/valainitializerlist.vala
index a8cdea14d..cdafd0923 100644
--- a/vala/valainitializerlist.vala
+++ b/vala/valainitializerlist.vala
@@ -41,11 +41,11 @@ public class Vala.InitializerList : Expression {
 	}
 
 	/**
-	 * Returns a copy of the expression
+	 * Returns the initalizer expression list
 	 *
 	 * @return expression list
 	 */
-	public List<Expression> get_initializers () {
+	public unowned List<Expression> get_initializers () {
 		return initializers;
 	}
 
diff --git a/vala/valainterface.vala b/vala/valainterface.vala
index f6c503641..6b715356f 100644
--- a/vala/valainterface.vala
+++ b/vala/valainterface.vala
@@ -53,11 +53,11 @@ public class Vala.Interface : ObjectTypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the base type list.
+	 * Returns the base type list.
 	 *
 	 * @return list of base types
 	 */
-	public List<DataType> get_prerequisites () {
+	public unowned List<DataType> get_prerequisites () {
 		return prerequisites;
 	}
 
diff --git a/vala/valalambdaexpression.vala b/vala/valalambdaexpression.vala
index a22497e70..8a930ef61 100644
--- a/vala/valalambdaexpression.vala
+++ b/vala/valalambdaexpression.vala
@@ -82,11 +82,11 @@ public class Vala.LambdaExpression : Expression {
 	}
 
 	/**
-	 * Returns copy of parameter list.
+	 * Returns the parameter list.
 	 *
 	 * @return parameter list
 	 */
-	public List<Parameter> get_parameters () {
+	public unowned List<Parameter> get_parameters () {
 		return parameters;
 	}
 
diff --git a/vala/valamemberaccess.vala b/vala/valamemberaccess.vala
index 132f72d05..fdc336f78 100644
--- a/vala/valamemberaccess.vala
+++ b/vala/valamemberaccess.vala
@@ -107,11 +107,11 @@ public class Vala.MemberAccess : Expression {
 	}
 
 	/**
-	 * Returns a copy of the list of generic type arguments.
+	 * Returns the list of generic type arguments.
 	 *
 	 * @return type argument list
 	 */
-	public List<DataType> get_type_arguments () {
+	public unowned List<DataType> get_type_arguments () {
 		return type_argument_list;
 	}
 
diff --git a/vala/valamethod.vala b/vala/valamethod.vala
index 29e7171a2..71c3a4787 100644
--- a/vala/valamethod.vala
+++ b/vala/valamethod.vala
@@ -228,7 +228,7 @@ public class Vala.Method : Subroutine, Callable {
 		scope.add (param.name, param);
 	}
 
-	public List<Parameter> get_parameters () {
+	public unowned List<Parameter> get_parameters () {
 		return parameters;
 	}
 
@@ -451,11 +451,11 @@ public class Vala.Method : Subroutine, Callable {
 	}
 
 	/**
-	 * Returns a copy of the type parameter list.
+	 * Returns the type parameter list.
 	 *
 	 * @return list of type parameters
 	 */
-	public List<TypeParameter> get_type_parameters () {
+	public unowned List<TypeParameter> get_type_parameters () {
 		if (type_parameters != null) {
 			return type_parameters;
 		}
@@ -498,11 +498,11 @@ public class Vala.Method : Subroutine, Callable {
 	}
 
 	/**
-	 * Returns a copy of the list of preconditions of this method.
+	 * Returns the list of preconditions of this method.
 	 *
 	 * @return list of preconditions
 	 */
-	public List<Expression> get_preconditions () {
+	public unowned List<Expression> get_preconditions () {
 		if (preconditions != null) {
 			return preconditions;
 		}
@@ -526,11 +526,11 @@ public class Vala.Method : Subroutine, Callable {
 	}
 
 	/**
-	 * Returns a copy of the list of postconditions of this method.
+	 * Returns the list of postconditions of this method.
 	 *
 	 * @return list of postconditions
 	 */
-	public List<Expression> get_postconditions () {
+	public unowned List<Expression> get_postconditions () {
 		if (postconditions != null) {
 			return postconditions;
 		}
diff --git a/vala/valamethodcall.vala b/vala/valamethodcall.vala
index c1b034fa3..0a9d7465a 100644
--- a/vala/valamethodcall.vala
+++ b/vala/valamethodcall.vala
@@ -75,11 +75,11 @@ public class Vala.MethodCall : Expression {
 	}
 
 	/**
-	 * Returns a copy of the argument list.
+	 * Returns the argument list.
 	 *
 	 * @return argument list
 	 */
-	public List<Expression> get_argument_list () {
+	public unowned List<Expression> get_argument_list () {
 		return argument_list;
 	}
 
diff --git a/vala/valamethodtype.vala b/vala/valamethodtype.vala
index a2effdec6..a10e61b12 100644
--- a/vala/valamethodtype.vala
+++ b/vala/valamethodtype.vala
@@ -40,7 +40,7 @@ public class Vala.MethodType : CallableType {
 		return method_symbol.return_type;
 	}
 
-	public override List<Parameter>? get_parameters () {
+	public override unowned List<Parameter>? get_parameters () {
 		return method_symbol.get_parameters ();
 	}
 
diff --git a/vala/valanamespace.vala b/vala/valanamespace.vala
index c53fda830..a413f07f6 100644
--- a/vala/valanamespace.vala
+++ b/vala/valanamespace.vala
@@ -68,11 +68,11 @@ public class Vala.Namespace : Symbol {
 	}
 
 	/**
-	 * Returns a copy of the list of namespaces.
+	 * Returns the list of namespaces.
 	 *
 	 * @return comment list
 	 */
-	public List<Comment> get_comments () {
+	public unowned List<Comment> get_comments () {
 		return comments;
 	}
 
@@ -141,11 +141,11 @@ public class Vala.Namespace : Symbol {
 	}
 
 	/**
-	 * Returns a copy of the list of namespaces.
+	 * Returns the list of namespaces.
 	 *
 	 * @return namespace list
 	 */
-	public List<Namespace> get_namespaces () {
+	public unowned List<Namespace> get_namespaces () {
 		return namespaces;
 	}
 
@@ -275,83 +275,83 @@ public class Vala.Namespace : Symbol {
 	}
 
 	/**
-	 * Returns a copy of the list of structs.
+	 * Returns the list of structs.
 	 *
 	 * @return struct list
 	 */
-	public List<Struct> get_structs () {
+	public unowned List<Struct> get_structs () {
 		return structs;
 	}
 
 	/**
-	 * Returns a copy of the list of classes.
+	 * Returns the list of classes.
 	 *
 	 * @return class list
 	 */
-	public List<Class> get_classes () {
+	public unowned List<Class> get_classes () {
 		return classes;
 	}
 
 	/**
-	 * Returns a copy of the list of interfaces.
+	 * Returns the list of interfaces.
 	 *
 	 * @return interface list
 	 */
-	public List<Interface> get_interfaces () {
+	public unowned List<Interface> get_interfaces () {
 		return interfaces;
 	}
 
 	/**
-	 * Returns a copy of the list of enums.
+	 * Returns the list of enums.
 	 *
 	 * @return enum list
 	 */
-	public List<Enum> get_enums () {
+	public unowned List<Enum> get_enums () {
 		return enums;
 	}
 
 	/**
-	 * Returns a copy of the list of error domains.
+	 * Returns the list of error domains.
 	 *
 	 * @return error domain list
 	 */
-	public List<ErrorDomain> get_error_domains () {
+	public unowned List<ErrorDomain> get_error_domains () {
 		return error_domains;
 	}
 
 	/**
-	 * Returns a copy of the list of fields.
+	 * Returns the list of fields.
 	 *
 	 * @return field list
 	 */
-	public List<Field> get_fields () {
+	public unowned List<Field> get_fields () {
 		return fields;
 	}
 
 	/**
-	 * Returns a copy of the list of constants.
+	 * Returns the list of constants.
 	 *
 	 * @return constant list
 	 */
-	public List<Constant> get_constants () {
+	public unowned List<Constant> get_constants () {
 		return constants;
 	}
 
 	/**
-	 * Returns a copy of the list of delegates.
+	 * Returns the list of delegates.
 	 *
 	 * @return delegate list
 	 */
-	public List<Delegate> get_delegates () {
+	public unowned List<Delegate> get_delegates () {
 		return delegates;
 	}
 
 	/**
-	 * Returns a copy of the list of methods.
+	 * Returns the list of methods.
 	 *
 	 * @return method list
 	 */
-	public List<Method> get_methods () {
+	public unowned List<Method> get_methods () {
 		return methods;
 	}
 
diff --git a/vala/valaobjectcreationexpression.vala b/vala/valaobjectcreationexpression.vala
index 1f6d335fc..19063a9d0 100644
--- a/vala/valaobjectcreationexpression.vala
+++ b/vala/valaobjectcreationexpression.vala
@@ -85,11 +85,11 @@ public class Vala.ObjectCreationExpression : Expression {
 	}
 
 	/**
-	 * Returns a copy of the argument list.
+	 * Returns the argument list.
 	 *
 	 * @return argument list
 	 */
-	public List<Expression> get_argument_list () {
+	public unowned List<Expression> get_argument_list () {
 		return argument_list;
 	}
 
@@ -108,7 +108,7 @@ public class Vala.ObjectCreationExpression : Expression {
 	 *
 	 * @return member initializer list
 	 */
-	public List<MemberInitializer> get_object_initializer () {
+	public unowned List<MemberInitializer> get_object_initializer () {
 		return object_initializer;
 	}
 
diff --git a/vala/valaobjecttype.vala b/vala/valaobjecttype.vala
index 4683f2081..7e4c2b12d 100644
--- a/vala/valaobjecttype.vala
+++ b/vala/valaobjecttype.vala
@@ -86,7 +86,7 @@ public class Vala.ObjectType : ReferenceType {
 		}
 	}
 
-	public override List<Parameter>? get_parameters () {
+	public override unowned List<Parameter>? get_parameters () {
 		var cl = type_symbol as Class;
 		if (cl != null && cl.default_construction_method != null) {
 			return cl.default_construction_method.get_parameters ();
diff --git a/vala/valaobjecttypesymbol.vala b/vala/valaobjecttypesymbol.vala
index ad0de3ffe..c15be3e34 100644
--- a/vala/valaobjecttypesymbol.vala
+++ b/vala/valaobjecttypesymbol.vala
@@ -56,7 +56,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of members
 	 */
-	public List<Symbol> get_members () {
+	public unowned List<Symbol> get_members () {
 		return members;
 	}
 
@@ -65,7 +65,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of fields
 	 */
-	public List<Field> get_fields () {
+	public unowned List<Field> get_fields () {
 		return fields;
 	}
 
@@ -74,7 +74,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of methods
 	 */
-	public List<Method> get_methods () {
+	public unowned List<Method> get_methods () {
 		return methods;
 	}
 
@@ -83,7 +83,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of properties
 	 */
-	public List<Property> get_properties () {
+	public unowned List<Property> get_properties () {
 		return properties;
 	}
 
@@ -92,7 +92,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of signals
 	 */
-	public List<Signal> get_signals () {
+	public unowned List<Signal> get_signals () {
 		return signals;
 	}
 
@@ -152,7 +152,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of classes
 	 */
-	public List<Class> get_classes () {
+	public unowned List<Class> get_classes () {
 		return classes;
 	}
 
@@ -161,7 +161,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of structs
 	 */
-	public List<Struct> get_structs () {
+	public unowned List<Struct> get_structs () {
 		return structs;
 	}
 
@@ -170,7 +170,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of enums
 	 */
-	public List<Enum> get_enums () {
+	public unowned List<Enum> get_enums () {
 		return enums;
 	}
 
@@ -179,7 +179,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of delegates
 	 */
-	public List<Delegate> get_delegates () {
+	public unowned List<Delegate> get_delegates () {
 		return delegates;
 	}
 
@@ -238,7 +238,7 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	 *
 	 * @return list of constants
 	 */
-	public List<Constant> get_constants () {
+	public unowned List<Constant> get_constants () {
 		return constants;
 	}
 
@@ -253,11 +253,11 @@ public abstract class Vala.ObjectTypeSymbol : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the type parameter list.
+	 * Returns the type parameter list.
 	 *
 	 * @return list of type parameters
 	 */
-	public List<TypeParameter> get_type_parameters () {
+	public unowned List<TypeParameter> get_type_parameters () {
 		return type_parameters;
 	}
 
diff --git a/vala/valascope.vala b/vala/valascope.vala
index a2a946b09..1a59d24ea 100644
--- a/vala/valascope.vala
+++ b/vala/valascope.vala
@@ -127,7 +127,7 @@ public class Vala.Scope {
 		return false;
 	}
 
-	public Map<string,Symbol> get_symbol_table () {
+	public unowned Map<string,Symbol> get_symbol_table () {
 		return symbol_table;
 	}
 }
diff --git a/vala/valasignal.vala b/vala/valasignal.vala
index fa32cbe64..e7caf0bff 100644
--- a/vala/valasignal.vala
+++ b/vala/valasignal.vala
@@ -92,7 +92,7 @@ public class Vala.Signal : Symbol, Callable {
 		scope.add (param.name, param);
 	}
 
-	public List<Parameter> get_parameters () {
+	public unowned List<Parameter> get_parameters () {
 		return parameters;
 	}
 
diff --git a/vala/valasignaltype.vala b/vala/valasignaltype.vala
index f9a67e90c..9f016c1a1 100644
--- a/vala/valasignaltype.vala
+++ b/vala/valasignaltype.vala
@@ -44,7 +44,7 @@ public class Vala.SignalType : CallableType {
 		return signal_symbol.return_type;
 	}
 
-	public override List<Parameter>? get_parameters () {
+	public override unowned List<Parameter>? get_parameters () {
 		return signal_symbol.get_parameters ();
 	}
 
diff --git a/vala/valasourcefile.vala b/vala/valasourcefile.vala
index 4dca01224..2e270a06c 100644
--- a/vala/valasourcefile.vala
+++ b/vala/valasourcefile.vala
@@ -163,11 +163,11 @@ public class Vala.SourceFile {
 	}
 
 	/**
-	 * Returns a copy of the list of header comments.
+	 * Returns the list of header comments.
 	 *
 	 * @return list of comments
 	 */
-	public List<Comment> get_comments () {
+	public unowned List<Comment> get_comments () {
 		return comments;
 	}
 
@@ -201,11 +201,11 @@ public class Vala.SourceFile {
 	}
 
 	/**
-	 * Returns a copy of the list of code nodes.
+	 * Returns the list of code nodes.
 	 *
 	 * @return code node list
 	 */
-	public List<CodeNode> get_nodes () {
+	public unowned List<CodeNode> get_nodes () {
 		return nodes;
 	}
 
diff --git a/vala/valastruct.vala b/vala/valastruct.vala
index c96632805..7b8232dba 100644
--- a/vala/valastruct.vala
+++ b/vala/valastruct.vala
@@ -179,11 +179,11 @@ public class Vala.Struct : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the type parameter list.
+	 * Returns the type parameter list.
 	 *
 	 * @return list of type parameters
 	 */
-	public List<TypeParameter> get_type_parameters () {
+	public unowned List<TypeParameter> get_type_parameters () {
 		return type_parameters;
 	}
 
@@ -210,20 +210,20 @@ public class Vala.Struct : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the list of fields.
+	 * Returns the list of fields.
 	 *
 	 * @return list of fields
 	 */
-	public List<Field> get_fields () {
+	public unowned List<Field> get_fields () {
 		return fields;
 	}
 
 	/**
-	 * Returns a copy of the list of constants.
+	 * Returns the list of constants.
 	 *
 	 * @return list of constants
 	 */
-	public List<Constant> get_constants () {
+	public unowned List<Constant> get_constants () {
 		return constants;
 	}
 
@@ -261,11 +261,11 @@ public class Vala.Struct : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the list of methods.
+	 * Returns the list of methods.
 	 *
 	 * @return list of methods
 	 */
-	public List<Method> get_methods () {
+	public unowned List<Method> get_methods () {
 		return methods;
 	}
 
@@ -288,11 +288,11 @@ public class Vala.Struct : TypeSymbol {
 	}
 
 	/**
-	 * Returns a copy of the list of properties.
+	 * Returns the list of properties.
 	 *
 	 * @return list of properties
 	 */
-	public List<Property> get_properties () {
+	public unowned List<Property> get_properties () {
 		return properties;
 	}
 
diff --git a/vala/valastructvaluetype.vala b/vala/valastructvaluetype.vala
index 556162789..7bdd44f87 100644
--- a/vala/valastructvaluetype.vala
+++ b/vala/valastructvaluetype.vala
@@ -48,7 +48,7 @@ public class Vala.StructValueType : ValueType {
 		}
 	}
 
-	public override List<Parameter>? get_parameters () {
+	public override unowned List<Parameter>? get_parameters () {
 		var st = type_symbol as Struct;
 		if (st != null && st.default_construction_method != null) {
 			return st.default_construction_method.get_parameters ();
diff --git a/vala/valaswitchsection.vala b/vala/valaswitchsection.vala
index 2b6bc60ab..aa57825a0 100644
--- a/vala/valaswitchsection.vala
+++ b/vala/valaswitchsection.vala
@@ -53,11 +53,11 @@ public class Vala.SwitchSection : Block {
 	}
 
 	/**
-	 * Returns a copy of the list of switch labels.
+	 * Returns the list of switch labels.
 	 *
 	 * @return switch label list
 	 */
-	public List<SwitchLabel> get_labels () {
+	public unowned List<SwitchLabel> get_labels () {
 		return labels;
 	}
 
diff --git a/vala/valaswitchstatement.vala b/vala/valaswitchstatement.vala
index 78cfa3d82..3a16872d7 100644
--- a/vala/valaswitchstatement.vala
+++ b/vala/valaswitchstatement.vala
@@ -65,11 +65,11 @@ public class Vala.SwitchStatement : CodeNode, Statement {
 	}
 
 	/**
-	 * Returns a copy of the list of switch sections.
+	 * Returns the list of switch sections.
 	 *
 	 * @return section list
 	 */
-	public List<SwitchSection> get_sections () {
+	public unowned List<SwitchSection> get_sections () {
 		return sections;
 	}
 
diff --git a/vala/valatemplate.vala b/vala/valatemplate.vala
index 5def6781b..26be05df9 100644
--- a/vala/valatemplate.vala
+++ b/vala/valatemplate.vala
@@ -43,7 +43,7 @@ public class Vala.Template : Expression {
 		expr.parent_node = this;
 	}
 
-	public List<Expression> get_expressions () {
+	public unowned List<Expression> get_expressions () {
 		return expression_list;
 	}
 
diff --git a/vala/valatrystatement.vala b/vala/valatrystatement.vala
index fcacfc7fb..43debfbaa 100644
--- a/vala/valatrystatement.vala
+++ b/vala/valatrystatement.vala
@@ -80,11 +80,11 @@ public class Vala.TryStatement : CodeNode, Statement {
 	}
 
 	/**
-	 * Returns a copy of the list of catch clauses.
+	 * Returns the list of catch clauses.
 	 *
 	 * @return list of catch clauses
 	 */
-	public List<CatchClause> get_catch_clauses () {
+	public unowned List<CatchClause> get_catch_clauses () {
 		return catch_clauses;
 	}
 
diff --git a/vala/valatuple.vala b/vala/valatuple.vala
index 87a0a9c4e..9064a1db8 100644
--- a/vala/valatuple.vala
+++ b/vala/valatuple.vala
@@ -49,7 +49,7 @@ public class Vala.Tuple : Expression {
 		expr.parent_node = this;
 	}
 
-	public List<Expression> get_expressions () {
+	public unowned List<Expression> get_expressions () {
 		return expression_list;
 	}