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Include precedence calculation in LexItemSet::transitions

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This commit is contained in:
Max Brunsfeld 2015-10-30 16:07:29 -07:00
parent e9be0ff24e
commit 73b3280fbb
11 changed files with 278 additions and 142 deletions
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10
src/compiler/precedence_range.cc
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@ -7,6 +7,9 @@ PrecedenceRange::PrecedenceRange() : min(0), max(0), empty(true) {}
PrecedenceRange::PrecedenceRange(int min, int max)
: min(min), max(max), empty(false) {}
PrecedenceRange::PrecedenceRange(int value)
: min(value), max(value), empty(false) {}
void PrecedenceRange::add(int new_value) {
if (empty) {
min = new_value;
@ -20,6 +23,13 @@ void PrecedenceRange::add(int new_value) {
}
}
void PrecedenceRange::add(const PrecedenceRange &other) {
if (!other.empty) {
add(other.min);
add(other.max);
}
}
bool PrecedenceRange::operator<(const PrecedenceRange &other) const {
if (empty)
return !other.empty;