71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
// Copyright 2015 Google Inc. All rights reserved
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef RULE_H_
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#define RULE_H_
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#include <functional>
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#include <string>
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#include <vector>
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#include "loc.h"
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#include "log.h"
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#include "stmt.h"
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#include "string_piece.h"
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#include "symtab.h"
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using namespace std;
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class Value;
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class Rule {
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public:
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Rule();
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Loc cmd_loc() const { return Loc(loc.filename, cmd_lineno); }
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string DebugString() const;
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vector<Symbol> outputs;
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vector<Symbol> inputs;
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vector<Symbol> order_only_inputs;
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vector<Symbol> output_patterns;
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bool is_double_colon;
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bool is_suffix_rule;
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vector<Value*> cmds;
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Loc loc;
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int cmd_lineno;
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private:
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void Error(const string& msg) {
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ERROR_LOC(loc, "%s", msg.c_str());
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}
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};
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struct RuleVarAssignment {
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vector<Symbol> outputs;
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StringPiece lhs;
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StringPiece rhs;
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AssignOp op;
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};
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// If |rule| is not NULL, |rule_var| is filled. If the expression
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// after the terminator |term| is needed (this happens only when
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// |term| is '='), |after_term_fn| will be called to obtain the right
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// hand side.
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void ParseRule(Loc& loc, StringPiece line, char term,
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const function<string()> &after_term_fn,
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Rule** rule, RuleVarAssignment* rule_var);
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#endif // RULE_H_
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