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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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10
src/compiler/build_tables/build_parse_table.cc
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@ -55,7 +55,8 @@ class ParseTableBuilder {
Symbol::non_terminal(0);
Production start_production{
ProductionStep{start_symbol, 0, rules::AssociativityNone},
{ProductionStep{start_symbol, 0, rules::AssociativityNone}},
0
};
// Placeholder for error state
@ -281,9 +282,10 @@ class ParseTableBuilder {
for (ParseAction &action : actions) {
if (action.type == ParseActionTypeReduce) {
if (has_fragile_production(action.production))
if (has_fragile_production(action.production)) {
action.fragile = true;
action.production = NULL;
}
action.production = nullptr;
}
}
@ -586,7 +588,7 @@ class ParseTableBuilder {
}
description += " (" + symbol_name(action.symbol);
for (const ProductionStep &step : *action.production) {
for (const ProductionStep &step : action.production->steps) {
description += " " + symbol_name(step.symbol);
}
description += ")";