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Split Ast classes into separate files
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Souffle - A Datalog Compiler | ||
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved | ||
| * Licensed under the Universal Permissive License v 1.0 as shown at: | ||
| * - https://opensource.org/licenses/UPL | ||
| * - <souffle root>/licenses/SOUFFLE-UPL.txt | ||
| */ | ||
|
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| /************************************************************************ | ||
| * | ||
| * @file Aggregator.h | ||
| * | ||
| ***********************************************************************/ | ||
|
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| #pragma once | ||
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| #include "AggregateOp.h" | ||
| #include "SrcLocation.h" | ||
| #include "ast/Argument.h" | ||
| #include "ast/Literal.h" | ||
| #include "ast/Node.h" | ||
| #include "ast/NodeMapper.h" | ||
| #include "utility/ContainerUtil.h" | ||
| #include "utility/MiscUtil.h" | ||
| #include "utility/StreamUtil.h" | ||
| #include <memory> | ||
| #include <ostream> | ||
| #include <string> | ||
| #include <utility> | ||
| #include <vector> | ||
|
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| namespace souffle { | ||
|
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| /** | ||
| * An argument aggregating a value from a sub-query. | ||
| */ | ||
| class AstAggregator : public AstArgument { | ||
| public: | ||
| AstAggregator(AggregateOp fun, Own<AstArgument> expr = nullptr, VecOwn<AstLiteral> body = {}, | ||
| SrcLocation loc = {}) | ||
| : AstArgument(std::move(loc)), fun(fun), targetExpression(std::move(expr)), | ||
| body(std::move(body)) {} | ||
|
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| /** Get aggregate operator */ | ||
| AggregateOp getOperator() const { | ||
| return fun; | ||
| } | ||
|
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| /** Set aggregate operator */ | ||
| void setOperator(AggregateOp op) { | ||
| fun = op; | ||
| } | ||
|
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| /** Get target expression */ | ||
| const AstArgument* getTargetExpression() const { | ||
| return targetExpression.get(); | ||
| } | ||
|
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| /** Get body literals */ | ||
| std::vector<AstLiteral*> getBodyLiterals() const { | ||
| return toPtrVector(body); | ||
| } | ||
|
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| void setBody(VecOwn<AstLiteral> bodyLiterals) { | ||
| body = std::move(bodyLiterals); | ||
| } | ||
|
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| std::vector<const AstNode*> getChildNodes() const override { | ||
| auto res = AstArgument::getChildNodes(); | ||
| if (targetExpression) { | ||
| res.push_back(targetExpression.get()); | ||
| } | ||
| for (auto& cur : body) { | ||
| res.push_back(cur.get()); | ||
| } | ||
| return res; | ||
| } | ||
|
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| AstAggregator* clone() const override { | ||
| return new AstAggregator(fun, souffle::clone(targetExpression), souffle::clone(body), getSrcLoc()); | ||
| } | ||
|
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| void apply(const AstNodeMapper& map) override { | ||
| if (targetExpression) { | ||
| targetExpression = map(std::move(targetExpression)); | ||
| } | ||
| for (auto& cur : body) { | ||
| cur = map(std::move(cur)); | ||
| } | ||
| } | ||
|
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| protected: | ||
| void print(std::ostream& os) const override { | ||
| os << fun; | ||
| if (targetExpression) { | ||
| os << " " << *targetExpression; | ||
| } | ||
| os << " : { " << join(body) << " }"; | ||
| } | ||
|
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| bool equal(const AstNode& node) const override { | ||
| const auto& other = static_cast<const AstAggregator&>(node); | ||
| return fun == other.fun && equal_ptr(targetExpression, other.targetExpression) && | ||
| equal_targets(body, other.body); | ||
| } | ||
|
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| private: | ||
| /** Aggregation operator */ | ||
| AggregateOp fun; | ||
|
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| /** Aggregation expression */ | ||
| Own<AstArgument> targetExpression; | ||
|
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| /** Body literal of sub-query */ | ||
| VecOwn<AstLiteral> body; | ||
| }; | ||
|
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| } // end of namespace souffle |
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