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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 "gtest/gtest-spi.h"
#include "src/ast/discard_statement.h"
#include "src/ast/stage_decoration.h"
#include "src/ast/test_helper.h"
#include "src/ast/workgroup_decoration.h"
namespace tint {
namespace ast {
namespace {
using FunctionTest = TestHelper;
TEST_F(FunctionTest, Creation) {
VariableList params;
params.push_back(Param("var", ty.i32()));
auto* var = params[0];
auto* f = Func("func", params, ty.void_(), StatementList{}, DecorationList{});
EXPECT_EQ(f->symbol(), Symbols().Get("func"));
ASSERT_EQ(f->params().size(), 1u);
EXPECT_TRUE(f->return_type()->Is<ast::Void>());
EXPECT_EQ(f->params()[0], var);
}
TEST_F(FunctionTest, Creation_WithSource) {
VariableList params;
params.push_back(Param("var", ty.i32()));
auto* f = Func(Source{Source::Location{20, 2}}, "func", params, ty.void_(),
StatementList{}, DecorationList{});
auto src = f->source();
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(FunctionTest, Assert_InvalidName) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.Func("", VariableList{}, b.ty.void_(), StatementList{},
DecorationList{});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_Null_ReturnType) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
b.Func("f", VariableList{}, nullptr, StatementList{}, DecorationList{});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_Null_Param) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
VariableList params;
params.push_back(b.Param("var", b.ty.i32()));
params.push_back(nullptr);
b.Func("f", params, b.ty.void_(), StatementList{}, DecorationList{});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentProgramID_Symbol) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func(b2.Sym("func"), VariableList{}, b1.ty.void_(), StatementList{});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentProgramID_Param) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func", VariableList{b2.Param("var", b2.ty.i32())},
b1.ty.void_(), StatementList{});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentProgramID_Deco) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func", VariableList{}, b1.ty.void_(), StatementList{},
DecorationList{
b2.WorkgroupSize(2, 4, 6),
});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentProgramID_ReturnDeco) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func", VariableList{}, b1.ty.void_(), StatementList{},
DecorationList{},
DecorationList{
b2.WorkgroupSize(2, 4, 6),
});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_NonConstParam) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder b;
VariableList params;
params.push_back(b.Var("var", b.ty.i32(), ast::StorageClass::kNone));
b.Func("f", params, b.ty.void_(), StatementList{}, DecorationList{});
},
"internal compiler error");
}
TEST_F(FunctionTest, ToStr) {
auto* f = Func("func", VariableList{}, ty.void_(),
StatementList{
create<DiscardStatement>(),
},
DecorationList{});
EXPECT_EQ(str(f), R"(Function func -> __void
()
{
Discard{}
}
)");
}
TEST_F(FunctionTest, ToStr_WithDecoration) {
auto* f = Func("func", VariableList{}, ty.void_(),
StatementList{
create<DiscardStatement>(),
},
DecorationList{WorkgroupSize(2, 4, 6)});
EXPECT_EQ(str(f), R"(Function func -> __void
WorkgroupDecoration{
ScalarConstructor[not set]{2}
ScalarConstructor[not set]{4}
ScalarConstructor[not set]{6}
}
()
{
Discard{}
}
)");
}
TEST_F(FunctionTest, ToStr_WithParams) {
VariableList params;
params.push_back(Param("var", ty.i32()));
auto* f = Func("func", params, ty.void_(),
StatementList{
create<DiscardStatement>(),
},
DecorationList{});
EXPECT_EQ(str(f), R"(Function func -> __void
(
VariableConst{
var
none
undefined
__i32
}
)
{
Discard{}
}
)");
}
TEST_F(FunctionTest, TypeName) {
auto* f = Func("func", VariableList{}, ty.void_(), StatementList{},
DecorationList{});
EXPECT_EQ(f->type_name(), "__func__void");
}
TEST_F(FunctionTest, TypeName_WithParams) {
VariableList params;
params.push_back(Param("var1", ty.i32()));
params.push_back(Param("var2", ty.f32()));
auto* f = Func("func", params, ty.void_(), StatementList{}, DecorationList{});
EXPECT_EQ(f->type_name(), "__func__void__i32__f32");
}
TEST_F(FunctionTest, GetLastStatement) {
VariableList params;
auto* stmt = create<DiscardStatement>();
auto* f =
Func("func", params, ty.void_(), StatementList{stmt}, DecorationList{});
EXPECT_EQ(f->get_last_statement(), stmt);
}
TEST_F(FunctionTest, GetLastStatement_nullptr) {
VariableList params;
auto* f = Func("func", params, ty.void_(), StatementList{}, DecorationList{});
EXPECT_EQ(f->get_last_statement(), nullptr);
}
using FunctionListTest = TestHelper;
TEST_F(FunctionListTest, FindSymbol) {
auto* func = Func("main", VariableList{}, ty.f32(), StatementList{},
ast::DecorationList{});
FunctionList list;
list.Add(func);
EXPECT_EQ(func, list.Find(Symbols().Register("main")));
}
TEST_F(FunctionListTest, FindSymbolMissing) {
FunctionList list;
EXPECT_EQ(nullptr, list.Find(Symbols().Register("Missing")));
}
TEST_F(FunctionListTest, FindSymbolStage) {
auto* fs = Func("main", VariableList{}, ty.f32(), StatementList{},
ast::DecorationList{
Stage(PipelineStage::kFragment),
});
auto* vs = Func("main", VariableList{}, ty.f32(), StatementList{},
ast::DecorationList{
Stage(PipelineStage::kVertex),
});
FunctionList list;
list.Add(fs);
list.Add(vs);
EXPECT_EQ(fs,
list.Find(Symbols().Register("main"), PipelineStage::kFragment));
EXPECT_EQ(vs, list.Find(Symbols().Register("main"), PipelineStage::kVertex));
}
TEST_F(FunctionListTest, FindSymbolStageMissing) {
FunctionList list;
list.Add(Func("main", VariableList{}, ty.f32(), StatementList{},
ast::DecorationList{
Stage(PipelineStage::kFragment),
}));
EXPECT_EQ(nullptr,
list.Find(Symbols().Register("main"), PipelineStage::kVertex));
}
TEST_F(FunctionListTest, HasStage) {
FunctionList list;
list.Add(Func("main", VariableList{}, ty.f32(), StatementList{},
ast::DecorationList{
Stage(PipelineStage::kFragment),
}));
EXPECT_TRUE(list.HasStage(PipelineStage::kFragment));
EXPECT_FALSE(list.HasStage(PipelineStage::kVertex));
}
} // namespace
} // namespace ast
} // namespace tint