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// Copyright 2023 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/lang/wgsl/reader/parser/helper_test.h"
#include "src/tint/lang/wgsl/ast/diagnostic_control.h"
#include "src/tint/lang/wgsl/ast/helper_test.h"
namespace tint::wgsl::reader {
namespace {
TEST_F(WGSLParserTest, DiagnosticDirective_Name) {
auto p = parser("diagnostic(off, foo);");
p->diagnostic_directive();
EXPECT_FALSE(p->has_error()) << p->error();
auto& ast = p->builder().AST();
ASSERT_EQ(ast.DiagnosticDirectives().Length(), 1u);
auto* directive = ast.DiagnosticDirectives()[0];
EXPECT_EQ(directive->control.severity, wgsl::DiagnosticSeverity::kOff);
ASSERT_EQ(ast.GlobalDeclarations().Length(), 1u);
EXPECT_EQ(ast.GlobalDeclarations()[0], directive);
auto* r = directive->control.rule_name;
ASSERT_NE(r, nullptr);
EXPECT_EQ(r->category, nullptr);
ast::CheckIdentifier(r->name, "foo");
}
TEST_F(WGSLParserTest, DiagnosticDirective_CategoryName) {
auto p = parser("diagnostic(off, foo.bar);");
p->diagnostic_directive();
EXPECT_FALSE(p->has_error()) << p->error();
auto& ast = p->builder().AST();
ASSERT_EQ(ast.DiagnosticDirectives().Length(), 1u);
auto* directive = ast.DiagnosticDirectives()[0];
EXPECT_EQ(directive->control.severity, wgsl::DiagnosticSeverity::kOff);
ASSERT_EQ(ast.GlobalDeclarations().Length(), 1u);
EXPECT_EQ(ast.GlobalDeclarations()[0], directive);
auto* r = directive->control.rule_name;
ASSERT_NE(r, nullptr);
ast::CheckIdentifier(r->category, "foo");
ast::CheckIdentifier(r->name, "bar");
}
TEST_F(WGSLParserTest, DiagnosticDirective_MissingSemicolon) {
auto p = parser("diagnostic(off, foo)");
p->translation_unit();
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:21: expected ';' for diagnostic directive");
auto program = p->program();
auto& ast = program.AST();
EXPECT_EQ(ast.DiagnosticDirectives().Length(), 0u);
EXPECT_EQ(ast.GlobalDeclarations().Length(), 0u);
}
TEST_F(WGSLParserTest, DiagnosticDirective_FollowingOtherGlobalDecl) {
auto p = parser(R"(
var<private> t: f32 = 0f;
diagnostic(off, foo);
)");
p->translation_unit();
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "3:1: directives must come before all global declarations");
}
TEST_F(WGSLParserTest, DiagnosticDirective_FollowingEmptySemicolon) {
auto p = parser(R"(
;
diagnostic(off, foo);
)");
p->translation_unit();
// An empty semicolon is treated as a global declaration.
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "3:1: directives must come before all global declarations");
}
} // namespace
} // namespace tint::wgsl::reader