Initial self-hosting commit

This is the initial version of our tool that is able to
build itself. In can be bootstrapped by

  ./bin/bootstrap.py

Co-authored-by: Oliver Reiche <oliver.reiche@huawei.com>
Co-authored-by: Victor Moreno <victor.moreno1@huawei.com>

1 files changed, 89 insertions, 0 deletions

diff --git a/src/buildtool/build_engine/expression/expression_ptr.cpp b/src/buildtool/build_engine/expression/expression_ptr.cpp
new file mode 100644
index 00000000..97cdb138
--- /dev/null
+++ b/src/buildtool/build_engine/expression/expression_ptr.cpp
@@ -0,0 +1,89 @@
+#include <string>
+
+#include "src/buildtool/build_engine/expression/evaluator.hpp"
+#include "src/buildtool/build_engine/expression/expression.hpp"
+
+ExpressionPtr::ExpressionPtr() noexcept : ptr_{Expression::kNone.ptr_} {}
+
+auto ExpressionPtr::operator*() && -> Expression {
+    return *ptr_;
+}
+
+auto ExpressionPtr::operator[](
+    std::string const& key) const& -> ExpressionPtr const& {
+    return (*ptr_)[key];
+}
+
+auto ExpressionPtr::operator[](std::string const& key) && -> ExpressionPtr {
+    return (*ptr_)[key];
+}
+
+auto ExpressionPtr::operator[](
+    ExpressionPtr const& key) const& -> ExpressionPtr const& {
+    return (*ptr_)[key];
+}
+
+auto ExpressionPtr::operator[](ExpressionPtr const& key) && -> ExpressionPtr {
+    return (*ptr_)[key];
+}
+
+auto ExpressionPtr::operator[](size_t pos) const& -> ExpressionPtr const& {
+    return (*ptr_)[pos];
+}
+
+auto ExpressionPtr::operator[](size_t pos) && -> ExpressionPtr {
+    return (*ptr_)[pos];
+}
+
+auto ExpressionPtr::operator<(ExpressionPtr const& other) const -> bool {
+    return ptr_->ToHash() < other.ptr_->ToHash();
+}
+
+auto ExpressionPtr::operator==(ExpressionPtr const& other) const -> bool {
+    return ptr_ == other.ptr_ or (ptr_ and other.ptr_ and *ptr_ == *other.ptr_);
+}
+
+auto ExpressionPtr::Evaluate(
+    Configuration const& env,
+    FunctionMapPtr const& functions,
+    std::function<void(std::string const&)> const& logger,
+    std::function<void(void)> const& note_user_context) const noexcept
+    -> ExpressionPtr {
+    return Evaluator::EvaluateExpression(
+        *this, env, functions, logger, note_user_context);
+}
+
+auto ExpressionPtr::IsCacheable() const noexcept -> bool {
+    return ptr_ and ptr_->IsCacheable();
+}
+
+auto ExpressionPtr::ToIdentifier() const noexcept -> std::string {
+    return ptr_ ? ptr_->ToIdentifier() : std::string{};
+}
+
+auto ExpressionPtr::ToJson() const noexcept -> nlohmann::json {
+    return ptr_ ? ptr_->ToJson() : nlohmann::json::object();
+}
+
+auto ExpressionPtr::IsNotNull() const noexcept -> bool {
+    // ExpressionPtr is nullptr in error case and none_t default empty case.
+    return static_cast<bool>(ptr_) and not(ptr_->IsNone());
+}
+
+auto ExpressionPtr::LinkedMap() const& -> ExpressionPtr::linked_map_t const& {
+    return ptr_->Map();
+}
+
+auto ExpressionPtr::Make(linked_map_t&& map) -> ExpressionPtr {
+    return ExpressionPtr{std::move(map)};
+}
+
+auto operator+(ExpressionPtr const& lhs, ExpressionPtr const& rhs)
+    -> ExpressionPtr {
+    return ExpressionPtr{*lhs + *rhs};
+}
+
+auto std::hash<ExpressionPtr>::operator()(ExpressionPtr const& p) const noexcept
+    -> std::size_t {
+    return std::hash<Expression>{}(*p);
+}