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// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/core/fluent_types.h"
#include "src/tint/lang/wgsl/ast/discard_statement.h"
#include "src/tint/lang/wgsl/ast/helper_test.h"
#include "src/tint/lang/wgsl/ast/stage_attribute.h"
#include "src/tint/lang/wgsl/ast/workgroup_attribute.h"
using namespace tint::core::number_suffixes; // NOLINT
using namespace tint::core::fluent_types; // NOLINT
namespace tint::ast {
namespace {
using FunctionTest = TestHelper;
TEST_F(FunctionTest, Creation_i32ReturnType) {
tint::Vector params{Param("var", ty.i32())};
auto i32 = ty.i32();
auto* var = params[0];
auto* f = Func("func", params, i32, tint::Empty);
EXPECT_EQ(f->name->symbol, Symbols().Get("func"));
ASSERT_EQ(f->params.Length(), 1u);
CheckIdentifier(f->return_type, "i32");
EXPECT_EQ(f->params[0], var);
}
TEST_F(FunctionTest, Creation_NoReturnType) {
tint::Vector params{Param("var", ty.i32())};
auto* var = params[0];
auto* f = Func("func", params, ty.void_(), tint::Empty);
EXPECT_EQ(f->name->symbol, Symbols().Get("func"));
ASSERT_EQ(f->params.Length(), 1u);
EXPECT_EQ(f->return_type, nullptr);
EXPECT_EQ(f->params[0], var);
}
TEST_F(FunctionTest, Creation_SingleParam) {
tint::Vector params{Param("var", ty.i32())};
auto* var = params[0];
auto* f = Func("func", params, ty.void_(), tint::Empty);
EXPECT_EQ(f->name->symbol, Symbols().Get("func"));
ASSERT_EQ(f->params.Length(), 1u);
EXPECT_EQ(f->return_type, nullptr);
EXPECT_EQ(f->params[0], var);
ASSERT_NE(f->body, nullptr);
ASSERT_EQ(f->body->statements.Length(), 0u);
}
TEST_F(FunctionTest, Creation_Body_Vector) {
auto* f = Func("func", tint::Empty, ty.void_(), tint::Vector{Discard(), Return()});
ASSERT_NE(f->body, nullptr);
ASSERT_EQ(f->body->statements.Length(), 2u);
EXPECT_TRUE(f->body->statements[0]->Is<DiscardStatement>());
EXPECT_TRUE(f->body->statements[1]->Is<ReturnStatement>());
}
TEST_F(FunctionTest, Creation_Body_Block) {
auto* f = Func("func", tint::Empty, ty.void_(), Block(Discard(), Return()));
ASSERT_NE(f->body, nullptr);
ASSERT_EQ(f->body->statements.Length(), 2u);
EXPECT_TRUE(f->body->statements[0]->Is<DiscardStatement>());
EXPECT_TRUE(f->body->statements[1]->Is<ReturnStatement>());
}
TEST_F(FunctionTest, Creation_Body_Stmt) {
auto* f = Func("func", tint::Empty, ty.void_(), Return());
ASSERT_NE(f->body, nullptr);
ASSERT_EQ(f->body->statements.Length(), 1u);
EXPECT_TRUE(f->body->statements[0]->Is<ReturnStatement>());
}
TEST_F(FunctionTest, Creation_Body_Nullptr) {
auto* f = Func("func", tint::Empty, ty.void_(), nullptr);
EXPECT_EQ(f->body, nullptr);
}
TEST_F(FunctionTest, Creation_WithSource) {
tint::Vector params{Param("var", ty.i32())};
auto* f = Func(Source{Source::Location{20, 2}}, "func", params, ty.void_(), tint::Empty);
auto src = f->source;
EXPECT_EQ(src.range.begin.line, 20u);
EXPECT_EQ(src.range.begin.column, 2u);
}
TEST_F(FunctionTest, Assert_NullName) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b;
b.Func(static_cast<Identifier*>(nullptr), tint::Empty, b.ty.void_(), tint::Empty);
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_TemplatedName) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b;
b.Func(b.Ident("a", "b"), tint::Empty, b.ty.void_(), tint::Empty);
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_NullParam) {
using ParamList = tint::Vector<const Parameter*, 2>;
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b;
ParamList params;
params.Push(b.Param("var", b.ty.i32()));
params.Push(nullptr);
b.Func("f", params, b.ty.void_(), tint::Empty);
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentGenerationID_Symbol) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func(b2.Sym("func"), tint::Empty, b1.ty.void_(), tint::Empty);
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentGenerationID_Param) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func",
tint::Vector{
b2.Param("var", b2.ty.i32()),
},
b1.ty.void_(), tint::Empty);
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentGenerationID_Attr) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func", tint::Empty, b1.ty.void_(), tint::Empty,
tint::Vector{
b2.WorkgroupSize(2_i, 4_i, 6_i),
});
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentGenerationID_ReturnType) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func", tint::Empty, b2.ty.i32(), tint::Empty);
},
"internal compiler error");
}
TEST_F(FunctionTest, Assert_DifferentGenerationID_ReturnAttr) {
EXPECT_DEATH_IF_SUPPORTED(
{
ProgramBuilder b1;
ProgramBuilder b2;
b1.Func("func", tint::Empty, b1.ty.void_(), tint::Empty, tint::Empty,
tint::Vector{
b2.WorkgroupSize(2_i, 4_i, 6_i),
});
},
"internal compiler error");
}
using FunctionListTest = TestHelper;
TEST_F(FunctionListTest, FindSymbol) {
auto* func = Func("main", tint::Empty, ty.f32(), tint::Empty);
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", tint::Empty, ty.f32(), tint::Empty,
tint::Vector{
Stage(PipelineStage::kFragment),
});
auto* vs = Func("main", tint::Empty, ty.f32(), tint::Empty,
tint::Vector{
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", tint::Empty, ty.f32(), tint::Empty,
tint::Vector{
Stage(PipelineStage::kFragment),
}));
EXPECT_EQ(nullptr, list.Find(Symbols().Register("main"), PipelineStage::kVertex));
}
TEST_F(FunctionListTest, HasStage) {
FunctionList list;
list.Add(Func("main", tint::Empty, ty.f32(), tint::Empty,
tint::Vector{
Stage(PipelineStage::kFragment),
}));
EXPECT_TRUE(list.HasStage(PipelineStage::kFragment));
EXPECT_FALSE(list.HasStage(PipelineStage::kVertex));
}
} // namespace
} // namespace tint::ast