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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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6
src/compiler/rules/metadata.cc
View file

@ -51,6 +51,12 @@ Metadata Metadata::prec_right(int precedence, const Rule &rule) {
return Metadata{rule, params};
}
Metadata Metadata::prec_dynamic(int dynamic_precedence, const Rule &rule) {
MetadataParams params;
params.dynamic_precedence = dynamic_precedence;
return Metadata{rule, params};
}
Metadata Metadata::separator(const Rule &rule) {
MetadataParams params;
params.has_precedence = true;

9
src/compiler/rules/metadata.h
View file

@ -14,6 +14,7 @@ enum Associativity {
struct MetadataParams {
int precedence;
int dynamic_precedence;
Associativity associativity;
bool has_precedence;
bool has_associativity;
@ -23,8 +24,8 @@ struct MetadataParams {
bool is_main_token;
inline MetadataParams() :
precedence{0}, associativity{AssociativityNone}, has_precedence{false},
has_associativity{false}, is_token{false}, is_string{false},
precedence{0}, dynamic_precedence{0}, associativity{AssociativityNone},
has_precedence{false}, has_associativity{false}, is_token{false}, is_string{false},
is_active{false}, is_main_token{false} {}
inline bool operator==(const MetadataParams &other) const {
@ -33,6 +34,7 @@ struct MetadataParams {
associativity == other.associativity &&
has_precedence == other.has_precedence &&
has_associativity == other.has_associativity &&
dynamic_precedence == other.dynamic_precedence &&
is_token == other.is_token &&
is_string == other.is_string &&
is_active == other.is_active &&
@ -54,6 +56,7 @@ struct Metadata {
static Metadata prec(int precedence, const Rule &rule);
static Metadata prec_left(int precedence, const Rule &rule);
static Metadata prec_right(int precedence, const Rule &rule);
static Metadata prec_dynamic(int precedence, const Rule &rule);
static Metadata separator(const Rule &rule);
static Metadata main_token(const Rule &rule);
@ -63,4 +66,4 @@ struct Metadata {
} // namespace rules
} // namespace tree_sitter
#endif // COMPILER_RULES_METADATA_H_
#endif // COMPILER_RULES_METADATA_H_