src/resolver/call_test.cc

// Copyright 2021 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/resolver/resolver.h"

#include "gmock/gmock.h"
#include "src/ast/call_statement.h"
#include "src/resolver/resolver_test_helper.h"

namespace tint {
namespace resolver {
namespace {
// Helpers and typedefs
template <typename T>
using DataType = builder::DataType<T>;
template <int N, typename T>
using vec = builder::vec<N, T>;
template <typename T>
using vec2 = builder::vec2<T>;
template <typename T>
using vec3 = builder::vec3<T>;
template <typename T>
using vec4 = builder::vec4<T>;
template <int N, int M, typename T>
using mat = builder::mat<N, M, T>;
template <typename T>
using mat2x2 = builder::mat2x2<T>;
template <typename T>
using mat2x3 = builder::mat2x3<T>;
template <typename T>
using mat3x2 = builder::mat3x2<T>;
template <typename T>
using mat3x3 = builder::mat3x3<T>;
template <typename T>
using mat4x4 = builder::mat4x4<T>;
template <typename T, int ID = 0>
using alias = builder::alias<T, ID>;
template <typename T>
using alias1 = builder::alias1<T>;
template <typename T>
using alias2 = builder::alias2<T>;
template <typename T>
using alias3 = builder::alias3<T>;
using f32 = builder::f32;
using i32 = builder::i32;
using u32 = builder::u32;

using ResolverCallTest = ResolverTest;

struct Params {
  builder::ast_expr_func_ptr create_value;
  builder::ast_type_func_ptr create_type;
};

template <typename T>
constexpr Params ParamsFor() {
  return Params{DataType<T>::Expr, DataType<T>::AST};
}

static constexpr Params all_param_types[] = {
    ParamsFor<bool>(),         //
    ParamsFor<u32>(),          //
    ParamsFor<i32>(),          //
    ParamsFor<f32>(),          //
    ParamsFor<vec3<bool>>(),   //
    ParamsFor<vec3<i32>>(),    //
    ParamsFor<vec3<u32>>(),    //
    ParamsFor<vec3<f32>>(),    //
    ParamsFor<mat3x3<f32>>(),  //
    ParamsFor<mat2x3<f32>>(),  //
    ParamsFor<mat3x2<f32>>()   //
};

TEST_F(ResolverCallTest, Valid) {
  ast::VariableList params;
  ast::ExpressionList args;
  for (auto& p : all_param_types) {
    params.push_back(Param(Sym(), p.create_type(*this)));
    args.push_back(p.create_value(*this, 0));
  }

  auto* func = Func("foo", std::move(params), ty.f32(), {Return(1.23f)});
  auto* call_expr = Call("foo", std::move(args));
  WrapInFunction(call_expr);

  EXPECT_TRUE(r()->Resolve()) << r()->error();

  auto* call = Sem().Get(call_expr);
  EXPECT_NE(call, nullptr);
  EXPECT_EQ(call->Target(), Sem().Get(func));
}

TEST_F(ResolverCallTest, OutOfOrder) {
  auto* call_expr = Call("b");
  Func("a", {}, ty.void_(), {CallStmt(call_expr)});
  auto* b = Func("b", {}, ty.void_(), {});

  EXPECT_TRUE(r()->Resolve()) << r()->error();

  auto* call = Sem().Get(call_expr);
  EXPECT_NE(call, nullptr);
  EXPECT_EQ(call->Target(), Sem().Get(b));
}

}  // namespace
}  // namespace resolver
}  // namespace tint