Initial commit
diff --git a/src/ast/literal.cc b/src/ast/literal.cc
new file mode 100644
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--- /dev/null
+++ b/src/ast/literal.cc
@@ -0,0 +1,52 @@
+// Copyright 2020 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "src/ast/literal.h"
+
+#include <assert.h>
+
+#include "src/ast/bool_literal.h"
+#include "src/ast/float_literal.h"
+#include "src/ast/int_literal.h"
+#include "src/ast/uint_literal.h"
+
+namespace tint {
+namespace ast {
+
+Literal::Literal() = default;
+
+Literal::~Literal() = default;
+
+BoolLiteral* Literal::AsBool() {
+ assert(IsBool());
+ return static_cast<BoolLiteral*>(this);
+}
+
+FloatLiteral* Literal::AsFloat() {
+ assert(IsFloat());
+ return static_cast<FloatLiteral*>(this);
+}
+
+IntLiteral* Literal::AsInt() {
+ assert(IsInt());
+ return static_cast<IntLiteral*>(this);
+}
+
+UintLiteral* Literal::AsUint() {
+ assert(IsUint());
+ return static_cast<UintLiteral*>(this);
+}
+
+} // namespace ast
+} // namespace tint
