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#include "src/tint/lang/wgsl/program/program_builder.h"

#include "src/tint/lang/wgsl/ast/assignment_statement.h"
#include "src/tint/lang/wgsl/ast/call_statement.h"
#include "src/tint/lang/wgsl/ast/variable_decl_statement.h"
#include "src/tint/lang/wgsl/sem/type_expression.h"
#include "src/tint/lang/wgsl/sem/value_expression.h"
#include "src/tint/lang/wgsl/sem/variable.h"
#include "src/tint/utils/ice/ice.h"
#include "src/tint/utils/macros/compiler.h"
#include "src/tint/utils/rtti/switch.h"

using namespace tint::core::number_suffixes;  // NOLINT

namespace tint {

ProgramBuilder::ProgramBuilder() = default;

ProgramBuilder::ProgramBuilder(ProgramBuilder&& rhs)
    : Builder(std::move(rhs)),
      constants(std::move(rhs.constants)),
      sem_nodes_(std::move(rhs.sem_nodes_)),
      sem_(std::move(rhs.sem_)) {}

ProgramBuilder::~ProgramBuilder() = default;

ProgramBuilder& ProgramBuilder::operator=(ProgramBuilder&& rhs) {
    *static_cast<Builder*>(this) = std::move(rhs);
    constants = std::move(rhs.constants);
    sem_nodes_ = std::move(rhs.sem_nodes_);
    sem_ = std::move(rhs.sem_);
    return *this;
}

void ProgramBuilder::AssertNotMoved() const {
    TINT_ASSERT(!moved_) << "Attempting to use ProgramBuilder after it has been moved";
}

const core::type::Type* ProgramBuilder::TypeOf(const ast::Expression* expr) const {
    return tint::Switch(
        Sem().Get(expr),  //
        [](const sem::ValueExpression* e) { return e->Type(); },
        [](const sem::TypeExpression* e) { return e->Type(); });
}

const core::type::Type* ProgramBuilder::TypeOf(const ast::Variable* var) const {
    auto* sem = Sem().Get(var);
    return sem ? sem->Type() : nullptr;
}

const core::type::Type* ProgramBuilder::TypeOf(const ast::TypeDecl* type_decl) const {
    return Sem().Get(type_decl);
}

}  // namespace tint
