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Performance improvement

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This commit is contained in:
yhirose 2022-01-06 22:59:01 -05:00
parent 578eec705c
commit b85606ce2e
1 changed files with 22 additions and 12 deletions
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34
peglib.h
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@ -459,11 +459,15 @@ inline constexpr unsigned int operator"" _(const char *s, size_t l) {
/*
* Semantic values
*/
class Context;
struct SemanticValues : protected std::vector<std::any> {
SemanticValues() = default;
SemanticValues(Context *c): c_(c) {}
// Input text
const char *path = nullptr;
const char *ss = nullptr;
std::function<const std::vector<size_t> &()> source_line_index;
// Matched string
std::string_view sv() const { return sv_; }
@ -553,6 +557,9 @@ private:
friend class Holder;
friend class PrecedenceClimbing;
const std::vector<size_t> &source_line_index() const;
Context *c_ = nullptr;
std::string_view sv_;
size_t choice_count_ = 0;
size_t choice_ = 0;
@ -773,7 +780,6 @@ private:
/*
* Context
*/
class Context;
class Ope;
class Definition;
@ -882,7 +888,7 @@ public:
SemanticValues &push() {
assert(value_stack_size <= value_stack.size());
if (value_stack_size == value_stack.size()) {
value_stack.emplace_back(std::make_shared<SemanticValues>());
value_stack.emplace_back(std::make_shared<SemanticValues>(this));
} else {
auto &vs = *value_stack[value_stack_size];
if (!vs.empty()) {
@ -898,15 +904,6 @@ public:
auto &vs = *value_stack[value_stack_size++];
vs.path = path;
vs.ss = s;
vs.source_line_index = [&]() -> const std::vector<size_t> & {
if (source_line_index.empty()) {
for (size_t pos = 0; pos < l; pos++) {
if (s[pos] == '\n') { source_line_index.push_back(pos); }
}
source_line_index.push_back(l);
}
return source_line_index;
};
return vs;
}
@ -2469,6 +2466,19 @@ inline size_t parse_literal(const char *s, size_t n, SemanticValues &vs,
return i;
}
inline const std::vector<size_t> &SemanticValues::source_line_index() const {
if (!c_) {
std::vector<size_t>();
}
if (c_->source_line_index.empty()) {
for (size_t pos = 0; pos < c_->l; pos++) {
if (c_->s[pos] == '\n') { c_->source_line_index.push_back(pos); }
}
c_->source_line_index.push_back(c_->l);
}
return c_->source_line_index;
}
inline void Context::set_error_pos(const char *a_s, const char *literal) {
if (log) {
if (error_info.error_pos <= a_s) {