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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/lang/wgsl/ast/helper_test.h"
#include "src/tint/lang/wgsl/reader/parser/helper_test.h"
namespace tint::wgsl::reader {
namespace {
TEST_F(WGSLParserTest, VariableIdentDecl_Parses) {
auto p = parser("my_var : f32");
auto decl = p->expect_ident_with_type_specifier("test");
ASSERT_FALSE(p->has_error()) << p->error();
ASSERT_FALSE(decl.errored);
ast::CheckIdentifier(decl->name, "my_var");
ASSERT_NE(decl->type, nullptr);
ast::CheckIdentifier(decl->type, "f32");
EXPECT_EQ(decl->name->source.range, (Source::Range{{1u, 1u}, {1u, 7u}}));
EXPECT_EQ(decl->type->source.range, (Source::Range{{1u, 10u}, {1u, 13u}}));
}
TEST_F(WGSLParserTest, VariableIdentDecl_Parses_AllowInferredType) {
auto p = parser("my_var : f32");
auto decl = p->expect_optionally_typed_ident("test");
ASSERT_FALSE(p->has_error()) << p->error();
ASSERT_FALSE(decl.errored);
ast::CheckIdentifier(decl->name, "my_var");
ASSERT_NE(decl->type, nullptr);
ast::CheckIdentifier(decl->type, "f32");
EXPECT_EQ(decl->name->source.range, (Source::Range{{1u, 1u}, {1u, 7u}}));
EXPECT_EQ(decl->type->source.range, (Source::Range{{1u, 10u}, {1u, 13u}}));
}
TEST_F(WGSLParserTest, VariableIdentDecl_Inferred_Parse_Failure) {
auto p = parser("my_var = 1.0");
auto decl = p->expect_ident_with_type_specifier("test");
ASSERT_TRUE(p->has_error());
ASSERT_EQ(p->error(), "1:8: expected ':' for test");
}
TEST_F(WGSLParserTest, VariableIdentDecl_Inferred_Parses_AllowInferredType) {
auto p = parser("my_var = 1.0");
auto decl = p->expect_optionally_typed_ident("test");
ASSERT_FALSE(p->has_error()) << p->error();
ASSERT_FALSE(decl.errored);
ast::CheckIdentifier(decl->name, "my_var");
ASSERT_EQ(decl->type, nullptr);
EXPECT_EQ(decl->name->source.range, (Source::Range{{1u, 1u}, {1u, 7u}}));
}
TEST_F(WGSLParserTest, VariableIdentDecl_MissingIdent) {
auto p = parser(": f32");
auto decl = p->expect_ident_with_type_specifier("test");
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(decl.errored);
ASSERT_EQ(p->error(), "1:1: expected identifier for test");
}
TEST_F(WGSLParserTest, VariableIdentDecl_MissingIdent_AllowInferredType) {
auto p = parser(": f32");
auto decl = p->expect_optionally_typed_ident("test");
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(decl.errored);
ASSERT_EQ(p->error(), "1:1: expected identifier for test");
}
TEST_F(WGSLParserTest, VariableIdentDecl_MissingType) {
auto p = parser("my_var :");
auto decl = p->expect_ident_with_type_specifier("test");
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(decl.errored);
ASSERT_EQ(p->error(), "1:9: invalid type for test");
}
TEST_F(WGSLParserTest, VariableIdentDecl_MissingType_AllowInferredType) {
auto p = parser("my_var :");
auto decl = p->expect_optionally_typed_ident("test");
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(decl.errored);
ASSERT_EQ(p->error(), "1:9: invalid type for test");
}
TEST_F(WGSLParserTest, VariableIdentDecl_InvalidIdent) {
auto p = parser("123 : f32");
auto decl = p->expect_ident_with_type_specifier("test");
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(decl.errored);
ASSERT_EQ(p->error(), "1:1: expected identifier for test");
}
TEST_F(WGSLParserTest, VariableIdentDecl_InvalidIdent_AllowInferredType) {
auto p = parser("123 : f32");
auto decl = p->expect_optionally_typed_ident("test");
ASSERT_TRUE(p->has_error());
ASSERT_TRUE(decl.errored);
ASSERT_EQ(p->error(), "1:1: expected identifier for test");
}
} // namespace
} // namespace tint::wgsl::reader