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dawn / tint / 77e2c6f0b2479d286406c2dc8802ba93c79ca5fb / . / src / clone_context_test.cc
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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 <unordered_set>
#include "gtest/gtest-spi.h"
#include "src/program_builder.h"
namespace tint {
namespace {
struct Allocator {
template <typename T, typename... ARGS>
T* Create(ARGS&&... args) {
return alloc.Create<T>(this, std::forward<ARGS>(args)...);
}
private:
BlockAllocator<Cloneable> alloc;
};
struct Node : public Castable<Node, Cloneable> {
Node(Allocator* alloc,
Symbol n,
const Node* node_a = nullptr,
const Node* node_b = nullptr,
const Node* node_c = nullptr)
: allocator(alloc), name(n), a(node_a), b(node_b), c(node_c) {}
Allocator* const allocator;
Symbol name;
const Node* a = nullptr;
const Node* b = nullptr;
const Node* c = nullptr;
std::vector<const Node*> vec;
Node* Clone(CloneContext* ctx) const override {
auto* out = allocator->Create<Node>(ctx->Clone(name));
out->a = ctx->Clone(a);
out->b = ctx->Clone(b);
out->c = ctx->Clone(c);
out->vec = ctx->Clone(vec);
return out;
}
};
struct Replaceable : public Castable<Replaceable, Node> {
Replaceable(Allocator* alloc,
Symbol n,
const Node* node_a = nullptr,
const Node* node_b = nullptr,
const Node* node_c = nullptr)
: Base(alloc, n, node_a, node_b, node_c) {}
};
struct Replacement : public Castable<Replacement, Replaceable> {
Replacement(Allocator* alloc, Symbol n) : Base(alloc, n) {}
};
struct NotANode : public Castable<NotANode, Cloneable> {
explicit NotANode(Allocator* alloc) : allocator(alloc) {}
Allocator* const allocator;
NotANode* Clone(CloneContext*) const override {
return allocator->Create<NotANode>();
}
};
struct ProgramNode : public Castable<ProgramNode, Cloneable> {
ProgramNode(Allocator* alloc, ProgramID id, ProgramID cloned_id)
: allocator(alloc), program_id(id), cloned_program_id(cloned_id) {}
Allocator* const allocator;
const ProgramID program_id;
const ProgramID cloned_program_id;
ProgramNode* Clone(CloneContext*) const override {
return allocator->Create<ProgramNode>(cloned_program_id, cloned_program_id);
}
};
ProgramID ProgramIDOf(const ProgramNode* node) {
return node->program_id;
}
using CloneContextNodeTest = ::testing::Test;
TEST_F(CloneContextNodeTest, Clone) {
Allocator alloc;
ProgramBuilder builder;
Node* original_root;
{
auto* a_b = alloc.Create<Node>(builder.Symbols().New("a->b"));
auto* a = alloc.Create<Node>(builder.Symbols().New("a"), nullptr, a_b);
auto* b_a = a; // Aliased
auto* b_b = alloc.Create<Node>(builder.Symbols().New("b->b"));
auto* b = alloc.Create<Node>(builder.Symbols().New("b"), b_a, b_b);
auto* c = b; // Aliased
original_root = alloc.Create<Node>(builder.Symbols().New("root"), a, b, c);
}
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// N <──────┐ N <───────────────┘
// ╭────┼────╮ │ ╭────┼────╮
// (a) (b) (c) │ (a) (b) (c)
// N └───┘ N
//
// N: Node
ProgramBuilder cloned;
auto* cloned_root = CloneContext(&cloned, &original).Clone(original_root);
EXPECT_NE(cloned_root->a, nullptr);
EXPECT_EQ(cloned_root->a->a, nullptr);
EXPECT_NE(cloned_root->a->b, nullptr);
EXPECT_EQ(cloned_root->a->c, nullptr);
EXPECT_NE(cloned_root->b, nullptr);
EXPECT_NE(cloned_root->b->a, nullptr);
EXPECT_NE(cloned_root->b->b, nullptr);
EXPECT_EQ(cloned_root->b->c, nullptr);
EXPECT_NE(cloned_root->c, nullptr);
EXPECT_NE(cloned_root->a, original_root->a);
EXPECT_NE(cloned_root->a->b, original_root->a->b);
EXPECT_NE(cloned_root->b, original_root->b);
EXPECT_NE(cloned_root->b->a, original_root->b->a);
EXPECT_NE(cloned_root->b->b, original_root->b->b);
EXPECT_NE(cloned_root->c, original_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->a->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->a->b->name, cloned.Symbols().Get("a->b"));
EXPECT_EQ(cloned_root->b->name, cloned.Symbols().Get("b"));
EXPECT_EQ(cloned_root->b->b->name, cloned.Symbols().Get("b->b"));
EXPECT_NE(cloned_root->b->a, cloned_root->a); // De-aliased
EXPECT_NE(cloned_root->c, cloned_root->b); // De-aliased
EXPECT_EQ(cloned_root->b->a->name, cloned_root->a->name);
EXPECT_EQ(cloned_root->c->name, cloned_root->b->name);
}
TEST_F(CloneContextNodeTest, CloneWithReplaceAll_Cloneable) {
Allocator alloc;
ProgramBuilder builder;
Node* original_root;
{
auto* a_b = alloc.Create<Replaceable>(builder.Symbols().New("a->b"));
auto* a = alloc.Create<Node>(builder.Symbols().New("a"), nullptr, a_b);
auto* b_a = a; // Aliased
auto* b =
alloc.Create<Replaceable>(builder.Symbols().New("b"), b_a, nullptr);
auto* c = b; // Aliased
original_root = alloc.Create<Node>(builder.Symbols().New("root"), a, b, c);
}
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// N <──────┐ R <───────────────┘
// ╭────┼────╮ │ ╭────┼────╮
// (a) (b) (c) │ (a) (b) (c)
// R └───┘
//
// N: Node
// R: Replaceable
ProgramBuilder cloned;
CloneContext ctx(&cloned, &original);
ctx.ReplaceAll([&](const Replaceable* in) {
auto out_name = cloned.Symbols().Register(
"replacement:" + original.Symbols().NameFor(in->name));
auto b_name = cloned.Symbols().Register(
"replacement-child:" + original.Symbols().NameFor(in->name));
auto* out = alloc.Create<Replacement>(out_name);
out->b = alloc.Create<Node>(b_name);
out->c = ctx.Clone(in->a);
return out;
});
auto* cloned_root = ctx.Clone(original_root);
// root
// ╭─────────────────┼──────────────────╮
// (a) (b) (c)
// N <──────┐ R <───────────────┘
// ╭────┼────╮ │ ╭────┼────╮
// (a) (b) (c) │ (a) (b) (c)
// R │ N |
// ╭────┼────╮ └────────────┘
// (a) (b) (c)
// N
//
// N: Node
// R: Replacement
EXPECT_NE(cloned_root->a, nullptr);
EXPECT_EQ(cloned_root->a->a, nullptr);
EXPECT_NE(cloned_root->a->b, nullptr); // Replaced
EXPECT_EQ(cloned_root->a->b->a, nullptr); // From replacement
EXPECT_NE(cloned_root->a->b->b, nullptr); // From replacement
EXPECT_EQ(cloned_root->a->b->c, nullptr); // From replacement
EXPECT_EQ(cloned_root->a->c, nullptr);
EXPECT_NE(cloned_root->b, nullptr);
EXPECT_EQ(cloned_root->b->a, nullptr); // From replacement
EXPECT_NE(cloned_root->b->b, nullptr); // From replacement
EXPECT_NE(cloned_root->b->c, nullptr); // From replacement
EXPECT_NE(cloned_root->c, nullptr);
EXPECT_NE(cloned_root->a, original_root->a);
EXPECT_NE(cloned_root->a->b, original_root->a->b);
EXPECT_NE(cloned_root->b, original_root->b);
EXPECT_NE(cloned_root->b->a, original_root->b->a);
EXPECT_NE(cloned_root->c, original_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->a->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->a->b->name, cloned.Symbols().Get("replacement:a->b"));
EXPECT_EQ(cloned_root->a->b->b->name,
cloned.Symbols().Get("replacement-child:a->b"));
EXPECT_EQ(cloned_root->b->name, cloned.Symbols().Get("replacement:b"));
EXPECT_EQ(cloned_root->b->b->name,
cloned.Symbols().Get("replacement-child:b"));
EXPECT_NE(cloned_root->b->c, cloned_root->a); // De-aliased
EXPECT_NE(cloned_root->c, cloned_root->b); // De-aliased
EXPECT_EQ(cloned_root->b->c->name, cloned_root->a->name);
EXPECT_EQ(cloned_root->c->name, cloned_root->b->name);
EXPECT_FALSE(Is<Replacement>(cloned_root->a));
EXPECT_TRUE(Is<Replacement>(cloned_root->a->b));
EXPECT_FALSE(Is<Replacement>(cloned_root->a->b->b));
EXPECT_TRUE(Is<Replacement>(cloned_root->b));
EXPECT_FALSE(Is<Replacement>(cloned_root->b->b));
}
TEST_F(CloneContextNodeTest, CloneWithReplaceAll_Symbols) {
Allocator alloc;
ProgramBuilder builder;
Node* original_root;
{
auto* a_b = alloc.Create<Node>(builder.Symbols().New("a->b"));
auto* a = alloc.Create<Node>(builder.Symbols().New("a"), nullptr, a_b);
auto* b_a = a; // Aliased
auto* b_b = alloc.Create<Node>(builder.Symbols().New("b->b"));
auto* b = alloc.Create<Node>(builder.Symbols().New("b"), b_a, b_b);
auto* c = b; // Aliased
original_root = alloc.Create<Node>(builder.Symbols().New("root"), a, b, c);
}
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// N <──────┐ N <───────────────┘
// ╭────┼────╮ │ ╭────┼────╮
// (a) (b) (c) │ (a) (b) (c)
// N └───┘ N
//
// N: Node
ProgramBuilder cloned;
auto* cloned_root = CloneContext(&cloned, &original, false)
.ReplaceAll([&](Symbol sym) {
auto in = original.Symbols().NameFor(sym);
auto out = "transformed<" + in + ">";
return cloned.Symbols().New(out);
})
.Clone(original_root);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("transformed<root>"));
EXPECT_EQ(cloned_root->a->name, cloned.Symbols().Get("transformed<a>"));
EXPECT_EQ(cloned_root->a->b->name, cloned.Symbols().Get("transformed<a->b>"));
EXPECT_EQ(cloned_root->b->name, cloned.Symbols().Get("transformed<b>"));
EXPECT_EQ(cloned_root->b->b->name, cloned.Symbols().Get("transformed<b->b>"));
}
TEST_F(CloneContextNodeTest, CloneWithoutTransform) {
Allocator a;
ProgramBuilder builder;
auto* original_node = a.Create<Node>(builder.Symbols().New("root"));
Program original(std::move(builder));
ProgramBuilder cloned;
CloneContext ctx(&cloned, &original);
ctx.ReplaceAll([&](const Node*) {
return a.Create<Replacement>(builder.Symbols().New("<unexpected-node>"));
});
auto* cloned_node = ctx.CloneWithoutTransform(original_node);
EXPECT_NE(cloned_node, original_node);
EXPECT_EQ(cloned_node->name, cloned.Symbols().Get("root"));
}
TEST_F(CloneContextNodeTest, CloneWithReplacePointer) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().New("root"));
original_root->a = a.Create<Node>(builder.Symbols().New("a"));
original_root->b = a.Create<Node>(builder.Symbols().New("b"));
original_root->c = a.Create<Node>(builder.Symbols().New("c"));
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// Replaced
ProgramBuilder cloned;
auto* replacement = a.Create<Node>(cloned.Symbols().New("replacement"));
auto* cloned_root = CloneContext(&cloned, &original)
.Replace(original_root->b, replacement)
.Clone(original_root);
EXPECT_NE(cloned_root->a, replacement);
EXPECT_EQ(cloned_root->b, replacement);
EXPECT_NE(cloned_root->c, replacement);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->a->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->b->name, cloned.Symbols().Get("replacement"));
EXPECT_EQ(cloned_root->c->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneWithReplaceFunction) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().New("root"));
original_root->a = a.Create<Node>(builder.Symbols().New("a"));
original_root->b = a.Create<Node>(builder.Symbols().New("b"));
original_root->c = a.Create<Node>(builder.Symbols().New("c"));
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// Replaced
ProgramBuilder cloned;
auto* replacement = a.Create<Node>(cloned.Symbols().New("replacement"));
auto* cloned_root =
CloneContext(&cloned, &original)
.Replace(original_root->b, [=] { return replacement; })
.Clone(original_root);
EXPECT_NE(cloned_root->a, replacement);
EXPECT_EQ(cloned_root->b, replacement);
EXPECT_NE(cloned_root->c, replacement);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->a->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->b->name, cloned.Symbols().Get("replacement"));
EXPECT_EQ(cloned_root->c->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneWithRemove) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->a = a.Create<Node>(builder.Symbols().Register("a"));
original_root->b = a.Create<Node>(builder.Symbols().Register("b"));
original_root->c = a.Create<Node>(builder.Symbols().Register("c"));
original_root->vec = {original_root->a, original_root->b, original_root->c};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* cloned_root = CloneContext(&cloned, &original)
.Remove(original_root->vec, original_root->b)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 2u);
EXPECT_NE(cloned_root->vec[0], cloned_root->a);
EXPECT_NE(cloned_root->vec[1], cloned_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->vec[1]->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertFront) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->a = a.Create<Node>(builder.Symbols().Register("a"));
original_root->b = a.Create<Node>(builder.Symbols().Register("b"));
original_root->c = a.Create<Node>(builder.Symbols().Register("c"));
original_root->vec = {original_root->a, original_root->b, original_root->c};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion = a.Create<Node>(cloned.Symbols().New("insertion"));
auto* cloned_root = CloneContext(&cloned, &original)
.InsertFront(original_root->vec, insertion)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 4u);
EXPECT_NE(cloned_root->vec[0], cloned_root->a);
EXPECT_NE(cloned_root->vec[1], cloned_root->b);
EXPECT_NE(cloned_root->vec[2], cloned_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("insertion"));
EXPECT_EQ(cloned_root->vec[1]->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->vec[2]->name, cloned.Symbols().Get("b"));
EXPECT_EQ(cloned_root->vec[3]->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertFront_Empty) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->vec = {};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion = a.Create<Node>(cloned.Symbols().New("insertion"));
auto* cloned_root = CloneContext(&cloned, &original)
.InsertFront(original_root->vec, insertion)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 1u);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("insertion"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertBack) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->a = a.Create<Node>(builder.Symbols().Register("a"));
original_root->b = a.Create<Node>(builder.Symbols().Register("b"));
original_root->c = a.Create<Node>(builder.Symbols().Register("c"));
original_root->vec = {original_root->a, original_root->b, original_root->c};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion = a.Create<Node>(cloned.Symbols().New("insertion"));
auto* cloned_root = CloneContext(&cloned, &original)
.InsertBack(original_root->vec, insertion)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 4u);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->vec[1]->name, cloned.Symbols().Get("b"));
EXPECT_EQ(cloned_root->vec[2]->name, cloned.Symbols().Get("c"));
EXPECT_EQ(cloned_root->vec[3]->name, cloned.Symbols().Get("insertion"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertBack_Empty) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->vec = {};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion = a.Create<Node>(cloned.Symbols().New("insertion"));
auto* cloned_root = CloneContext(&cloned, &original)
.InsertBack(original_root->vec, insertion)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 1u);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("insertion"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertFrontAndBack_Empty) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->vec = {};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion_front =
a.Create<Node>(cloned.Symbols().New("insertion_front"));
auto* insertion_back = a.Create<Node>(cloned.Symbols().New("insertion_back"));
auto* cloned_root = CloneContext(&cloned, &original)
.InsertBack(original_root->vec, insertion_back)
.InsertFront(original_root->vec, insertion_front)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 2u);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("insertion_front"));
EXPECT_EQ(cloned_root->vec[1]->name, cloned.Symbols().Get("insertion_back"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertBefore) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->a = a.Create<Node>(builder.Symbols().Register("a"));
original_root->b = a.Create<Node>(builder.Symbols().Register("b"));
original_root->c = a.Create<Node>(builder.Symbols().Register("c"));
original_root->vec = {original_root->a, original_root->b, original_root->c};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion = a.Create<Node>(cloned.Symbols().New("insertion"));
auto* cloned_root =
CloneContext(&cloned, &original)
.InsertBefore(original_root->vec, original_root->b, insertion)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 4u);
EXPECT_NE(cloned_root->vec[0], cloned_root->a);
EXPECT_NE(cloned_root->vec[2], cloned_root->b);
EXPECT_NE(cloned_root->vec[3], cloned_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->vec[1]->name, cloned.Symbols().Get("insertion"));
EXPECT_EQ(cloned_root->vec[2]->name, cloned.Symbols().Get("b"));
EXPECT_EQ(cloned_root->vec[3]->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertAfter) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->a = a.Create<Node>(builder.Symbols().Register("a"));
original_root->b = a.Create<Node>(builder.Symbols().Register("b"));
original_root->c = a.Create<Node>(builder.Symbols().Register("c"));
original_root->vec = {original_root->a, original_root->b, original_root->c};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion = a.Create<Node>(cloned.Symbols().New("insertion"));
auto* cloned_root =
CloneContext(&cloned, &original)
.InsertAfter(original_root->vec, original_root->b, insertion)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 4u);
EXPECT_NE(cloned_root->vec[0], cloned_root->a);
EXPECT_NE(cloned_root->vec[1], cloned_root->b);
EXPECT_NE(cloned_root->vec[3], cloned_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->vec[1]->name, cloned.Symbols().Get("b"));
EXPECT_EQ(cloned_root->vec[2]->name, cloned.Symbols().Get("insertion"));
EXPECT_EQ(cloned_root->vec[3]->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneWithInsertBeforeAndAfterRemoved) {
Allocator a;
ProgramBuilder builder;
auto* original_root = a.Create<Node>(builder.Symbols().Register("root"));
original_root->a = a.Create<Node>(builder.Symbols().Register("a"));
original_root->b = a.Create<Node>(builder.Symbols().Register("b"));
original_root->c = a.Create<Node>(builder.Symbols().Register("c"));
original_root->vec = {original_root->a, original_root->b, original_root->c};
Program original(std::move(builder));
ProgramBuilder cloned;
auto* insertion_before =
a.Create<Node>(cloned.Symbols().New("insertion_before"));
auto* insertion_after =
a.Create<Node>(cloned.Symbols().New("insertion_after"));
auto* cloned_root =
CloneContext(&cloned, &original)
.InsertBefore(original_root->vec, original_root->b, insertion_before)
.InsertAfter(original_root->vec, original_root->b, insertion_after)
.Remove(original_root->vec, original_root->b)
.Clone(original_root);
EXPECT_EQ(cloned_root->vec.size(), 4u);
EXPECT_NE(cloned_root->vec[0], cloned_root->a);
EXPECT_NE(cloned_root->vec[3], cloned_root->c);
EXPECT_EQ(cloned_root->name, cloned.Symbols().Get("root"));
EXPECT_EQ(cloned_root->vec[0]->name, cloned.Symbols().Get("a"));
EXPECT_EQ(cloned_root->vec[1]->name,
cloned.Symbols().Get("insertion_before"));
EXPECT_EQ(cloned_root->vec[2]->name, cloned.Symbols().Get("insertion_after"));
EXPECT_EQ(cloned_root->vec[3]->name, cloned.Symbols().Get("c"));
}
TEST_F(CloneContextNodeTest, CloneIntoSameBuilder) {
ProgramBuilder builder;
CloneContext ctx(&builder);
Allocator allocator;
auto* original = allocator.Create<Node>(builder.Symbols().New());
auto* cloned_a = ctx.Clone(original);
auto* cloned_b = ctx.Clone(original);
EXPECT_NE(original, cloned_a);
EXPECT_NE(original, cloned_b);
EXPECT_NE(cloned_a, cloned_b);
}
TEST_F(CloneContextNodeTest, CloneWithReplaceAll_SameTypeTwice) {
std::string node_name = TypeInfo::Of<Node>().name;
EXPECT_FATAL_FAILURE(
{
ProgramBuilder cloned;
Program original;
CloneContext ctx(&cloned, &original);
ctx.ReplaceAll([](const Node*) { return nullptr; });
ctx.ReplaceAll([](const Node*) { return nullptr; });
},
"internal compiler error: ReplaceAll() called with a handler for type " +
node_name + " that is already handled by a handler for type " +
node_name);
}
TEST_F(CloneContextNodeTest, CloneWithReplaceAll_BaseThenDerived) {
std::string node_name = TypeInfo::Of<Node>().name;
std::string replaceable_name = TypeInfo::Of<Replaceable>().name;
EXPECT_FATAL_FAILURE(
{
ProgramBuilder cloned;
Program original;
CloneContext ctx(&cloned, &original);
ctx.ReplaceAll([](const Node*) { return nullptr; });
ctx.ReplaceAll([](const Replaceable*) { return nullptr; });
},
"internal compiler error: ReplaceAll() called with a handler for type " +
replaceable_name + " that is already handled by a handler for type " +
node_name);
}
TEST_F(CloneContextNodeTest, CloneWithReplaceAll_DerivedThenBase) {
std::string node_name = TypeInfo::Of<Node>().name;
std::string replaceable_name = TypeInfo::Of<Replaceable>().name;
EXPECT_FATAL_FAILURE(
{
ProgramBuilder cloned;
Program original;
CloneContext ctx(&cloned, &original);
ctx.ReplaceAll([](const Replaceable*) { return nullptr; });
ctx.ReplaceAll([](const Node*) { return nullptr; });
},
"internal compiler error: ReplaceAll() called with a handler for type " +
node_name + " that is already handled by a handler for type " +
replaceable_name);
}
TEST_F(CloneContextNodeTest, CloneWithReplacePointer_WithNotANode) {
EXPECT_FATAL_FAILURE(
{
Allocator allocator;
ProgramBuilder builder;
auto* original_root =
allocator.Create<Node>(builder.Symbols().New("root"));
original_root->a = allocator.Create<Node>(builder.Symbols().New("a"));
original_root->b = allocator.Create<Node>(builder.Symbols().New("b"));
original_root->c = allocator.Create<Node>(builder.Symbols().New("c"));
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// Replaced
ProgramBuilder cloned;
auto* replacement = allocator.Create<NotANode>();
CloneContext ctx(&cloned, &original);
ctx.Replace(original_root->b, replacement);
ctx.Clone(original_root);
},
"internal compiler error");
}
TEST_F(CloneContextNodeTest, CloneWithReplaceFunction_WithNotANode) {
EXPECT_FATAL_FAILURE(
{
Allocator allocator;
ProgramBuilder builder;
auto* original_root =
allocator.Create<Node>(builder.Symbols().New("root"));
original_root->a = allocator.Create<Node>(builder.Symbols().New("a"));
original_root->b = allocator.Create<Node>(builder.Symbols().New("b"));
original_root->c = allocator.Create<Node>(builder.Symbols().New("c"));
Program original(std::move(builder));
// root
// ╭──────────────────┼──────────────────╮
// (a) (b) (c)
// Replaced
ProgramBuilder cloned;
auto* replacement = allocator.Create<NotANode>();
CloneContext ctx(&cloned, &original);
ctx.Replace(original_root->b, [=] { return replacement; });
ctx.Clone(original_root);
},
"internal compiler error");
}
using CloneContextTest = ::testing::Test;
TEST_F(CloneContextTest, CloneWithReplaceAll_SymbolsTwice) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder cloned;
Program original;
CloneContext ctx(&cloned, &original);
ctx.ReplaceAll([](const Symbol s) { return s; });
ctx.ReplaceAll([](const Symbol s) { return s; });
},
"internal compiler error: ReplaceAll(const SymbolTransform&) called "
"multiple times on the same CloneContext");
}
TEST_F(CloneContextTest, CloneNewUnnamedSymbols) {
ProgramBuilder builder;
Symbol old_a = builder.Symbols().New();
Symbol old_b = builder.Symbols().New();
Symbol old_c = builder.Symbols().New();
EXPECT_EQ(builder.Symbols().NameFor(old_a), "tint_symbol");
EXPECT_EQ(builder.Symbols().NameFor(old_b), "tint_symbol_1");
EXPECT_EQ(builder.Symbols().NameFor(old_c), "tint_symbol_2");
Program original(std::move(builder));
ProgramBuilder cloned;
CloneContext ctx(&cloned, &original, false);
Symbol new_x = cloned.Symbols().New();
Symbol new_a = ctx.Clone(old_a);
Symbol new_y = cloned.Symbols().New();
Symbol new_b = ctx.Clone(old_b);
Symbol new_z = cloned.Symbols().New();
Symbol new_c = ctx.Clone(old_c);
EXPECT_EQ(cloned.Symbols().NameFor(new_x), "tint_symbol");
EXPECT_EQ(cloned.Symbols().NameFor(new_a), "tint_symbol_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_y), "tint_symbol_2");
EXPECT_EQ(cloned.Symbols().NameFor(new_b), "tint_symbol_1_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_z), "tint_symbol_3");
EXPECT_EQ(cloned.Symbols().NameFor(new_c), "tint_symbol_2_1");
}
TEST_F(CloneContextTest, CloneNewSymbols) {
ProgramBuilder builder;
Symbol old_a = builder.Symbols().New("a");
Symbol old_b = builder.Symbols().New("b");
Symbol old_c = builder.Symbols().New("c");
EXPECT_EQ(builder.Symbols().NameFor(old_a), "a");
EXPECT_EQ(builder.Symbols().NameFor(old_b), "b");
EXPECT_EQ(builder.Symbols().NameFor(old_c), "c");
Program original(std::move(builder));
ProgramBuilder cloned;
CloneContext ctx(&cloned, &original, false);
Symbol new_x = cloned.Symbols().New("a");
Symbol new_a = ctx.Clone(old_a);
Symbol new_y = cloned.Symbols().New("b");
Symbol new_b = ctx.Clone(old_b);
Symbol new_z = cloned.Symbols().New("c");
Symbol new_c = ctx.Clone(old_c);
EXPECT_EQ(cloned.Symbols().NameFor(new_x), "a");
EXPECT_EQ(cloned.Symbols().NameFor(new_a), "a_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_y), "b");
EXPECT_EQ(cloned.Symbols().NameFor(new_b), "b_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_z), "c");
EXPECT_EQ(cloned.Symbols().NameFor(new_c), "c_1");
}
TEST_F(CloneContextTest, CloneNewSymbols_AfterCloneSymbols) {
ProgramBuilder builder;
Symbol old_a = builder.Symbols().New("a");
Symbol old_b = builder.Symbols().New("b");
Symbol old_c = builder.Symbols().New("c");
EXPECT_EQ(builder.Symbols().NameFor(old_a), "a");
EXPECT_EQ(builder.Symbols().NameFor(old_b), "b");
EXPECT_EQ(builder.Symbols().NameFor(old_c), "c");
Program original(std::move(builder));
ProgramBuilder cloned;
CloneContext ctx(&cloned, &original);
Symbol new_x = cloned.Symbols().New("a");
Symbol new_a = ctx.Clone(old_a);
Symbol new_y = cloned.Symbols().New("b");
Symbol new_b = ctx.Clone(old_b);
Symbol new_z = cloned.Symbols().New("c");
Symbol new_c = ctx.Clone(old_c);
EXPECT_EQ(cloned.Symbols().NameFor(new_x), "a_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_a), "a");
EXPECT_EQ(cloned.Symbols().NameFor(new_y), "b_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_b), "b");
EXPECT_EQ(cloned.Symbols().NameFor(new_z), "c_1");
EXPECT_EQ(cloned.Symbols().NameFor(new_c), "c");
}
TEST_F(CloneContextTest, ProgramIDs) {
ProgramBuilder dst;
Program src(ProgramBuilder{});
CloneContext ctx(&dst, &src);
Allocator allocator;
auto* cloned = ctx.Clone(allocator.Create<ProgramNode>(src.ID(), dst.ID()));
EXPECT_EQ(cloned->program_id, dst.ID());
}
TEST_F(CloneContextTest, ProgramIDs_Clone_ObjectNotOwnedBySrc) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder dst;
Program src(ProgramBuilder{});
CloneContext ctx(&dst, &src);
Allocator allocator;
ctx.Clone(allocator.Create<ProgramNode>(ProgramID::New(), dst.ID()));
},
R"(internal compiler error: TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(Clone, src, object))");
}
TEST_F(CloneContextTest, ProgramIDs_Clone_ObjectNotOwnedByDst) {
EXPECT_FATAL_FAILURE(
{
ProgramBuilder dst;
Program src(ProgramBuilder{});
CloneContext ctx(&dst, &src);
Allocator allocator;
ctx.Clone(allocator.Create<ProgramNode>(src.ID(), ProgramID::New()));
},
R"(internal compiler error: TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(Clone, dst, out))");
}
} // namespace
TINT_INSTANTIATE_TYPEINFO(Node);
TINT_INSTANTIATE_TYPEINFO(Replaceable);
TINT_INSTANTIATE_TYPEINFO(Replacement);
TINT_INSTANTIATE_TYPEINFO(NotANode);
TINT_INSTANTIATE_TYPEINFO(ProgramNode);
} // namespace tint