/home/uke/oil/cpp/pgen2.cc
Line | Count | Source (jump to first uncovered line) |
1 | | // pgen2.cc |
2 | | |
3 | | #include "pgen2.h" |
4 | | |
5 | | #include <vector> |
6 | | |
7 | | namespace pnode { |
8 | | |
9 | | PNode::PNode(int typ, syntax_asdl::Token* tok, List<PNode*>*) |
10 | 0 | : typ(typ), tok(tok), children() { |
11 | 0 | } |
12 | | |
13 | 0 | void PNode::AddChild(PNode* node) { |
14 | 0 | children.push_back(node); |
15 | 0 | } |
16 | | |
17 | 0 | PNode* PNode::GetChild(int i) { |
18 | 0 | int j = i; |
19 | 0 | if (j < 0) { |
20 | 0 | j += NumChildren(); |
21 | 0 | } |
22 | 0 | return children[j]; |
23 | 0 | } |
24 | | |
25 | 0 | int PNode::NumChildren() { |
26 | 0 | return children.size(); |
27 | 0 | } |
28 | | |
29 | 0 | PNodeAllocator::PNodeAllocator() : arena_(new std::vector<PNode>()) { |
30 | 0 | arena_->reserve(512); |
31 | 0 | } |
32 | | |
33 | 0 | PNode* PNodeAllocator::NewPNode(int typ, syntax_asdl::Token* tok) { |
34 | 0 | CHECK(arena_->size() < arena_->capacity()); |
35 | 0 | arena_->emplace_back(typ, tok, nullptr); |
36 | 0 | return arena_->data() + (arena_->size() - 1); |
37 | 0 | } |
38 | | |
39 | 0 | void PNodeAllocator::Clear() { |
40 | 0 | delete arena_; |
41 | 0 | arena_ = nullptr; |
42 | 0 | } |
43 | | |
44 | | } // namespace pnode |