traxys/tree-sitter
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Remove reduction-specific collapse flags in favor of globally hidden symbols

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This commit is contained in:
Max Brunsfeld 2014-03-25 09:05:55 -07:00
parent 2df56f01c8
commit 25861b7f03
6 changed files with 378 additions and 311 deletions
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23
src/compiler/generate_code/c_code.cc
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@ -114,17 +114,6 @@ namespace tree_sitter {
return "!(" + condition_for_character_set(rule.complement()) + ")";
}
string collapse_flags(vector<bool> flags) {
string result;
bool started = false;
for (auto flag : flags) {
if (started) result += ", ";
result += (flag ? "1" : "0");
started = true;
}
return result;
}
string code_for_parse_actions(const rules::Symbol &symbol, const ParseAction &action) {
string sym_id = symbol_id(symbol);
switch (action.type) {
@ -136,8 +125,7 @@ namespace tree_sitter {
return "REDUCE(" +
sym_id + ", " +
symbol_id(action.symbol) + ", " +
to_string(action.child_flags.size()) + ", " +
"COLLAPSE({" + collapse_flags(action.child_flags) + "}))";
to_string(action.child_flags.size()) + ")";
default:
return "";
}
@ -206,6 +194,14 @@ namespace tree_sitter {
result += indent(string("\"") + symbol.name) + "\",\n";
return result + "};";
}
string hidden_symbol_flags() {
string result = "HIDDEN_SYMBOL_FLAGS = {\n";
for (auto &symbol : parse_table.symbols)
if (!symbol.is_built_in())
result += indent(symbol.is_hidden() ? "1" : "0") + ",\n";
return result + "};";
}
string includes() {
return "#include \"tree_sitter/parser.h\"";
@ -265,6 +261,7 @@ namespace tree_sitter {
symbol_count(),
symbol_enum(),
rule_names_list(),
hidden_symbol_flags(),
lex_function(),
parse_table_function(),
parser_export(),