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Add PREC_DYNAMIC rule for resolving runtime ambiguities

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This commit is contained in:
Max Brunsfeld 2017-07-06 15:20:11 -07:00
parent cb652239f6
commit d8e9d04fe7
24 changed files with 316 additions and 83 deletions
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21
src/compiler/syntax_grammar.h
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@ -11,8 +11,9 @@ namespace tree_sitter {
struct ProductionStep {
inline bool operator==(const ProductionStep &other) const {
return symbol == other.symbol && precedence == other.precedence &&
associativity == other.associativity;
return symbol == other.symbol &&
precedence == other.precedence &&
associativity == other.associativity;
}
rules::Symbol symbol;
@ -20,7 +21,21 @@ struct ProductionStep {
rules::Associativity associativity;
};
typedef std::vector<ProductionStep> Production;
struct Production {
std::vector<ProductionStep> steps;
int dynamic_precedence = 0;
inline bool operator==(const Production &other) const {
return steps == other.steps && dynamic_precedence == other.dynamic_precedence;
}
inline ProductionStep &back() { return steps.back(); }
inline const ProductionStep &back() const { return steps.back(); }
inline bool empty() const { return steps.empty(); }
inline size_t size() const { return steps.size(); }
inline const ProductionStep &operator[](int i) const { return steps[i]; }
inline const ProductionStep &at(int i) const { return steps[i]; }
};
struct SyntaxVariable {
std::string name;