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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/tint/ast/test_helper.h"
#include "src/tint/reader/wgsl/parser_impl_test_helper.h"
namespace tint::reader::wgsl {
namespace {
TEST_F(ParserImplTest, VariableDecl_Parses) {
auto p = parser("var my_var : f32");
auto v = p->variable_decl();
EXPECT_FALSE(p->has_error());
EXPECT_TRUE(v.matched);
EXPECT_FALSE(v.errored);
ast::CheckIdentifier(v->name, "my_var");
EXPECT_NE(v->type, nullptr);
ast::CheckIdentifier(v->type, "f32");
EXPECT_EQ(v->source.range, (Source::Range{{1u, 5u}, {1u, 11u}}));
EXPECT_EQ(v->type->source.range, (Source::Range{{1u, 14u}, {1u, 17u}}));
}
TEST_F(ParserImplTest, VariableDecl_Unicode_Parses) {
const std::string ident = // "𝖎𝖉𝖊𝖓𝖙𝖎𝖋𝖎𝖊𝖗123"
"\xf0\x9d\x96\x8e\xf0\x9d\x96\x89\xf0\x9d\x96\x8a\xf0\x9d\x96\x93"
"\xf0\x9d\x96\x99\xf0\x9d\x96\x8e\xf0\x9d\x96\x8b\xf0\x9d\x96\x8e"
"\xf0\x9d\x96\x8a\xf0\x9d\x96\x97\x31\x32\x33";
auto p = parser("var " + ident + " : f32");
auto v = p->variable_decl();
EXPECT_FALSE(p->has_error());
EXPECT_TRUE(v.matched);
EXPECT_FALSE(v.errored);
ast::CheckIdentifier(v->name, ident);
EXPECT_NE(v->type, nullptr);
ast::CheckIdentifier(v->type, "f32");
EXPECT_EQ(v->source.range, (Source::Range{{1u, 5u}, {1u, 48u}}));
EXPECT_EQ(v->type->source.range, (Source::Range{{1u, 51u}, {1u, 54u}}));
}
TEST_F(ParserImplTest, VariableDecl_Inferred_Parses) {
auto p = parser("var my_var = 1.0");
auto v = p->variable_decl();
EXPECT_FALSE(p->has_error());
EXPECT_TRUE(v.matched);
EXPECT_FALSE(v.errored);
ast::CheckIdentifier(v->name, "my_var");
EXPECT_EQ(v->type, nullptr);
EXPECT_EQ(v->source.range, (Source::Range{{1u, 5u}, {1u, 11u}}));
}
TEST_F(ParserImplTest, VariableDecl_MissingVar) {
auto p = parser("my_var : f32");
auto v = p->variable_decl();
EXPECT_FALSE(v.matched);
EXPECT_FALSE(v.errored);
EXPECT_FALSE(p->has_error());
auto& t = p->next();
ASSERT_TRUE(t.IsIdentifier());
}
TEST_F(ParserImplTest, VariableDecl_WithAddressSpace) {
auto p = parser("var<private> my_var : f32");
auto v = p->variable_decl();
EXPECT_TRUE(v.matched);
EXPECT_FALSE(v.errored);
EXPECT_FALSE(p->has_error());
ast::CheckIdentifier(v->name, "my_var");
ast::CheckIdentifier(v->type, "f32");
ast::CheckIdentifier(v->address_space, "private");
EXPECT_EQ(v->source.range.begin.line, 1u);
EXPECT_EQ(v->source.range.begin.column, 14u);
EXPECT_EQ(v->source.range.end.line, 1u);
EXPECT_EQ(v->source.range.end.column, 20u);
}
TEST_F(ParserImplTest, VariableDecl_WithPushConstant) {
auto p = parser("var<push_constant> my_var : f32");
auto v = p->variable_decl();
EXPECT_TRUE(v.matched);
EXPECT_FALSE(v.errored);
EXPECT_FALSE(p->has_error());
ast::CheckIdentifier(v->name, "my_var");
ast::CheckIdentifier(v->type, "f32");
ast::CheckIdentifier(v->address_space, "push_constant");
}
} // namespace
} // namespace tint::reader::wgsl