ast: Add an IncrementDecrementStatement node
Bug: tint:1488
Change-Id: I9b307a7b53348055af873c137ad6eebbe1dbe5b0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86001
Reviewed-by: Ben Clayton <bclayton@google.com>
diff --git a/src/tint/ast/increment_decrement_statement_test.cc b/src/tint/ast/increment_decrement_statement_test.cc
new file mode 100644
index 0000000..ccb5f07
--- /dev/null
+++ b/src/tint/ast/increment_decrement_statement_test.cc
@@ -0,0 +1,68 @@
+// Copyright 2022 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/tint/ast/increment_decrement_statement.h"
+
+#include "gtest/gtest-spi.h"
+#include "src/tint/ast/test_helper.h"
+
+namespace tint::ast {
+namespace {
+
+using IncrementDecrementStatementTest = TestHelper;
+
+TEST_F(IncrementDecrementStatementTest, Creation) {
+ auto* expr = Expr("expr");
+
+ auto* i = create<IncrementDecrementStatement>(expr, true);
+ EXPECT_EQ(i->lhs, expr);
+ EXPECT_TRUE(i->increment);
+}
+
+TEST_F(IncrementDecrementStatementTest, Creation_WithSource) {
+ auto* expr = Expr("expr");
+ auto* i = create<IncrementDecrementStatement>(Source{Source::Location{20, 2}},
+ expr, true);
+ auto src = i->source;
+ EXPECT_EQ(i->lhs, expr);
+ EXPECT_TRUE(i->increment);
+ EXPECT_EQ(src.range.begin.line, 20u);
+ EXPECT_EQ(src.range.begin.column, 2u);
+}
+
+TEST_F(IncrementDecrementStatementTest, IsIncrementDecrement) {
+ auto* expr = Expr("expr");
+ auto* i = create<IncrementDecrementStatement>(expr, true);
+ EXPECT_TRUE(i->Is<IncrementDecrementStatement>());
+}
+
+TEST_F(IncrementDecrementStatementTest, Decrement) {
+ auto* expr = Expr("expr");
+ auto* i = create<IncrementDecrementStatement>(expr, false);
+ EXPECT_EQ(i->lhs, expr);
+ EXPECT_FALSE(i->increment);
+}
+
+TEST_F(IncrementDecrementStatementTest, Assert_DifferentProgramID_Expr) {
+ EXPECT_FATAL_FAILURE(
+ {
+ ProgramBuilder b1;
+ ProgramBuilder b2;
+ b1.create<IncrementDecrementStatement>(b2.Expr(true), true);
+ },
+ "internal compiler error");
+}
+
+} // namespace
+} // namespace tint::ast
