71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
// Copyright (c) 2020-now by the Zeek Project. See LICENSE for details.
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#pragma once
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#include <memory>
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#include <utility>
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#include <hilti/ast/ctor.h>
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#include <hilti/ast/ctors/error.h>
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#include <hilti/ast/expression.h>
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#include <hilti/ast/expressions/ctor.h>
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#include <hilti/ast/type.h>
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#include <hilti/ast/types/auto.h>
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#include <hilti/ast/types/error.h>
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#include <hilti/ast/types/result.h>
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namespace hilti::ctor {
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/** AST node for a `optional` ctor. */
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class Result : public Ctor {
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public:
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QualifiedType* dereferencedType() const { return type()->type()->as<type::Result>()->dereferencedType(); }
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Expression* value() const {
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const auto& e = child<Expression>(1);
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if ( ! e->type()->type()->isA<type::Error>() )
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return e;
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else
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return {};
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}
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Expression* error() const {
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const auto& e = child<Expression>(1);
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if ( e->type()->type()->isA<type::Error>() )
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return e;
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else
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return {};
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}
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QualifiedType* type() const final { return child<QualifiedType>(0); }
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void setType(ASTContext* ctx, QualifiedType* t) { setChild(ctx, 0, t); }
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static auto create(ASTContext* ctx, Expression* expr, const Meta& meta = {}) {
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return ctx->make<Result>(ctx,
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{
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QualifiedType::createAuto(ctx, meta),
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expr,
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},
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meta);
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}
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static auto create(ASTContext* ctx, QualifiedType* type, const Meta& meta = {}) {
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return ctx->make<Result>(ctx,
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{
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type,
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expression::Ctor::create(ctx, ctor::Error::create(ctx, "<not set>", meta), meta),
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},
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meta);
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}
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protected:
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Result(ASTContext* ctx, Nodes children, Meta meta) : Ctor(ctx, NodeTags, std::move(children), std::move(meta)) {}
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HILTI_NODE_1(ctor::Result, Ctor, final);
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};
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} // namespace hilti::ctor
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