aboutsummaryrefslogtreecommitdiffstats
path: root/stmt.cc
blob: 44875d0ecb7baf3518462212f77ed46b869c4c2a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
// Copyright 2015 Google Inc. All rights reserved
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// +build ignore

#include "stmt.h"

#include "eval.h"
#include "expr.h"
#include "stringprintf.h"
#include "strutil.h"

Stmt::Stmt() {}

Stmt::~Stmt() {}

string RuleStmt::DebugString() const {
  return StringPrintf("RuleStmt(expr=%s term=%d after_term=%s loc=%s:%d)",
                      expr->DebugString().c_str(), term,
                      after_term->DebugString().c_str(), LOCF(loc()));
}

string AssignStmt::DebugString() const {
  const char* opstr = "???";
  switch (op) {
    case AssignOp::EQ:
      opstr = "EQ";
      break;
    case AssignOp::COLON_EQ:
      opstr = "COLON_EQ";
      break;
    case AssignOp::PLUS_EQ:
      opstr = "PLUS_EQ";
      break;
    case AssignOp::QUESTION_EQ:
      opstr = "QUESTION_EQ";
      break;
  }
  const char* dirstr = "???";
  switch (directive) {
    case AssignDirective::NONE:
      dirstr = "";
      break;
    case AssignDirective::OVERRIDE:
      dirstr = "override";
      break;
    case AssignDirective::EXPORT:
      dirstr = "export";
      break;
  }
  return StringPrintf(
      "AssignStmt(lhs=%s rhs=%s (%s) "
      "opstr=%s dir=%s loc=%s:%d)",
      lhs->DebugString().c_str(), rhs->DebugString().c_str(),
      NoLineBreak(orig_rhs.as_string()).c_str(), opstr, dirstr, LOCF(loc()));
}

Symbol AssignStmt::GetLhsSymbol(Evaluator* ev) const {
  if (!lhs->IsLiteral()) {
    string buf;
    lhs->Eval(ev, &buf);
    return Intern(buf);
  }

  if (!lhs_sym_cache_.IsValid()) {
    lhs_sym_cache_ = Intern(lhs->GetLiteralValueUnsafe());
  }
  return lhs_sym_cache_;
}

string CommandStmt::DebugString() const {
  return StringPrintf("CommandStmt(%s, loc=%s:%d)", expr->DebugString().c_str(),
                      LOCF(loc()));
}

string IfStmt::DebugString() const {
  const char* opstr = "???";
  switch (op) {
    case CondOp::IFEQ:
      opstr = "ifeq";
      break;
    case CondOp::IFNEQ:
      opstr = "ifneq";
      break;
    case CondOp::IFDEF:
      opstr = "ifdef";
      break;
    case CondOp::IFNDEF:
      opstr = "ifndef";
      break;
  }
  return StringPrintf("IfStmt(op=%s, lhs=%s, rhs=%s t=%zu f=%zu loc=%s:%d)",
                      opstr, lhs->DebugString().c_str(),
                      rhs->DebugString().c_str(), true_stmts.size(),
                      false_stmts.size(), LOCF(loc()));
}

string IncludeStmt::DebugString() const {
  return StringPrintf("IncludeStmt(%s, loc=%s:%d)", expr->DebugString().c_str(),
                      LOCF(loc()));
}

string ExportStmt::DebugString() const {
  return StringPrintf("ExportStmt(%s, %d, loc=%s:%d)",
                      expr->DebugString().c_str(), is_export, LOCF(loc()));
}

string ParseErrorStmt::DebugString() const {
  return StringPrintf("ParseErrorStmt(%s, loc=%s:%d)", msg.c_str(),
                      LOCF(loc()));
}

RuleStmt::~RuleStmt() {
  delete expr;
  delete after_term;
}

void RuleStmt::Eval(Evaluator* ev) const {
  ev->EvalRule(this);
}

AssignStmt::~AssignStmt() {
  delete lhs;
  delete rhs;
}

void AssignStmt::Eval(Evaluator* ev) const {
  ev->EvalAssign(this);
}

CommandStmt::~CommandStmt() {
  delete expr;
}

void CommandStmt::Eval(Evaluator* ev) const {
  ev->EvalCommand(this);
}

IfStmt::~IfStmt() {
  delete lhs;
  delete rhs;
}

void IfStmt::Eval(Evaluator* ev) const {
  ev->EvalIf(this);
}

IncludeStmt::~IncludeStmt() {
  delete expr;
}

void IncludeStmt::Eval(Evaluator* ev) const {
  ev->EvalInclude(this);
}

ExportStmt::~ExportStmt() {
  delete expr;
}

void ExportStmt::Eval(Evaluator* ev) const {
  ev->EvalExport(this);
}

ParseErrorStmt::~ParseErrorStmt() {}

void ParseErrorStmt::Eval(Evaluator* ev) const {
  ev->set_loc(loc());
  ev->Error(msg);
}