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// 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/struct_block_attribute.h"
#include "src/reader/wgsl/parser_impl_test_helper.h"
namespace tint {
namespace reader {
namespace wgsl {
namespace {
TEST_F(ParserImplTest, StructDecl_Parses) {
auto p = parser(R"(
struct S {
a : i32;
b : f32;
})");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_FALSE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 0u);
auto s = p->struct_decl(attrs.value);
EXPECT_FALSE(p->has_error());
EXPECT_FALSE(s.errored);
EXPECT_TRUE(s.matched);
ASSERT_NE(s.value, nullptr);
ASSERT_EQ(s->name, p->builder().Symbols().Register("S"));
ASSERT_EQ(s->members.size(), 2u);
EXPECT_EQ(s->members[0]->symbol, p->builder().Symbols().Register("a"));
EXPECT_EQ(s->members[1]->symbol, p->builder().Symbols().Register("b"));
}
TEST_F(ParserImplTest, StructDecl_ParsesWithAttribute) {
auto p = parser(R"(
[[block]] struct B {
a : f32;
b : f32;
})");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_TRUE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 1u);
auto s = p->struct_decl(attrs.value);
EXPECT_FALSE(p->has_error());
EXPECT_FALSE(s.errored);
EXPECT_TRUE(s.matched);
ASSERT_NE(s.value, nullptr);
ASSERT_EQ(s->name, p->builder().Symbols().Register("B"));
ASSERT_EQ(s->members.size(), 2u);
EXPECT_EQ(s->members[0]->symbol, p->builder().Symbols().Register("a"));
EXPECT_EQ(s->members[1]->symbol, p->builder().Symbols().Register("b"));
ASSERT_EQ(s->attributes.size(), 1u);
EXPECT_TRUE(s->attributes[0]->Is<ast::StructBlockAttribute>());
}
TEST_F(ParserImplTest, StructDecl_ParsesWithMultipleAttribute) {
auto p = parser(R"(
[[block]]
[[block]] struct S {
a : f32;
b : f32;
})");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_TRUE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 2u);
auto s = p->struct_decl(attrs.value);
EXPECT_FALSE(p->has_error());
EXPECT_FALSE(s.errored);
EXPECT_TRUE(s.matched);
ASSERT_NE(s.value, nullptr);
ASSERT_EQ(s->name, p->builder().Symbols().Register("S"));
ASSERT_EQ(s->members.size(), 2u);
EXPECT_EQ(s->members[0]->symbol, p->builder().Symbols().Register("a"));
EXPECT_EQ(s->members[1]->symbol, p->builder().Symbols().Register("b"));
ASSERT_EQ(s->attributes.size(), 2u);
EXPECT_TRUE(s->attributes[0]->Is<ast::StructBlockAttribute>());
EXPECT_TRUE(s->attributes[1]->Is<ast::StructBlockAttribute>());
}
TEST_F(ParserImplTest, StructDecl_EmptyMembers) {
auto p = parser("struct S {}");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_FALSE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 0u);
auto s = p->struct_decl(attrs.value);
EXPECT_FALSE(p->has_error());
EXPECT_FALSE(s.errored);
EXPECT_TRUE(s.matched);
ASSERT_NE(s.value, nullptr);
ASSERT_EQ(s->members.size(), 0u);
}
TEST_F(ParserImplTest, StructDecl_MissingIdent) {
auto p = parser("struct {}");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_FALSE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 0u);
auto s = p->struct_decl(attrs.value);
EXPECT_TRUE(s.errored);
EXPECT_FALSE(s.matched);
EXPECT_EQ(s.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:8: expected identifier for struct declaration");
}
TEST_F(ParserImplTest, StructDecl_MissingBracketLeft) {
auto p = parser("struct S }");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_FALSE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 0u);
auto s = p->struct_decl(attrs.value);
EXPECT_TRUE(s.errored);
EXPECT_FALSE(s.matched);
EXPECT_EQ(s.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:10: expected '{' for struct declaration");
}
// TODO(crbug.com/tint/1324): DEPRECATED: Remove when @block is removed.
TEST_F(ParserImplTest, StructDecl_InvalidAttributeDecl) {
auto p = parser("[[block struct S { a : i32; }");
auto attrs = p->attribute_list();
EXPECT_TRUE(attrs.errored);
EXPECT_FALSE(attrs.matched);
auto s = p->struct_decl(attrs.value);
EXPECT_FALSE(s.errored);
EXPECT_TRUE(s.matched);
EXPECT_NE(s.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(
p->error(),
R"(1:1: use of deprecated language feature: [[attribute]] style attributes have been replaced with @attribute style
1:3: use of deprecated language feature: [[block]] attributes have been removed from WGSL
1:9: expected ']]' for attribute list)");
}
// TODO(crbug.com/tint/1324): DEPRECATED: Remove when [[block]] is removed.
TEST_F(ParserImplTest, StructDecl_MissingStruct) {
auto p = parser("[[block]] S {}");
auto attrs = p->attribute_list();
EXPECT_FALSE(attrs.errored);
EXPECT_TRUE(attrs.matched);
ASSERT_EQ(attrs.value.size(), 1u);
auto s = p->struct_decl(attrs.value);
EXPECT_FALSE(s.errored);
EXPECT_FALSE(s.matched);
EXPECT_EQ(s.value, nullptr);
EXPECT_FALSE(p->has_error());
}
} // namespace
} // namespace wgsl
} // namespace reader
} // namespace tint