This commit is contained in:
Max Brunsfeld 2017-03-01 22:15:26 -08:00
parent 686dc0997c
commit abf8a4f2c2
28 changed files with 313 additions and 356 deletions

View file

@ -23,13 +23,11 @@ enum ParseActionType {
ParseActionTypeRecover,
};
class ParseAction {
struct ParseAction {
ParseAction();
ParseAction(ParseActionType type, ParseStateId state_index,
rules::Symbol symbol, size_t consumed_symbol_count,
const Production *);
public:
ParseAction();
static ParseAction Accept();
static ParseAction Error();
static ParseAction Shift(ParseStateId state_index);
@ -39,7 +37,6 @@ class ParseAction {
static ParseAction ShiftExtra();
bool operator==(const ParseAction &) const;
bool operator<(const ParseAction &) const;
rules::Associativity associativity() const;
int precedence() const;
@ -47,30 +44,26 @@ class ParseAction {
bool extra;
bool fragile;
ParseStateId state_index;
rules::Symbol symbol;
size_t consumed_symbol_count;
const Production *production;
};
struct ParseTableEntry {
std::vector<ParseAction> actions;
bool reusable;
bool depends_on_lookahead;
ParseTableEntry();
ParseTableEntry(const std::vector<ParseAction> &, bool, bool);
bool operator==(const ParseTableEntry &other) const;
inline bool operator!=(const ParseTableEntry &other) const {
return !operator==(other);
}
std::vector<ParseAction> actions;
bool reusable;
bool depends_on_lookahead;
};
class ParseState {
public:
struct ParseState {
ParseState();
std::set<rules::Symbol> expected_inputs() const;
bool operator==(const ParseState &) const;
bool merge(const ParseState &);
void each_referenced_state(std::function<void(ParseStateId *)>);
@ -87,10 +80,7 @@ struct ParseTableSymbolMetadata {
bool structural;
};
class ParseTable {
public:
std::set<rules::Symbol> all_symbols() const;
ParseStateId add_state();
struct ParseTable {
ParseAction &add_terminal_action(ParseStateId state_id, rules::Symbol, ParseAction);
void set_nonterminal_action(ParseStateId, rules::Symbol::Index, ParseStateId);