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Generate comments to annotate reduce table entries

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This commit is contained in:
Josh Holtrop 2025-04-04 15:24:07 -04:00
parent 659de44c31
commit 839174a635
3 changed files with 23 additions and 13 deletions
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17
assets/parser.c.erb
View File

@ -712,17 +712,22 @@ const uint16_t r_<%= rule.name.gsub("$", "_") %><%= rule.id %>_node_field_index_
/** Parser reduce table. */
static const reduce_t parser_reduce_table[] = {
<% @parser.reduce_table.each do |reduce| %>
{<%= reduce[:token_id] %>u, <%= reduce[:rule_id] %>u, <%= reduce[:rule_set_id] %>u, <%= reduce[:n_states] %>u
{
<%= reduce[:token_id] %>u, /* Token: <%= reduce[:token] ? reduce[:token].name : "(any)" %> */
<%= reduce[:rule_id] %>u, /* Rule ID */
<%= reduce[:rule_set_id] %>u, /* Rule set ID (<%= reduce[:rule].rule_set.name %>) */
<% if @grammar.ast %>
<%= reduce[:n_states] %>u, /* Number of states */
<% if reduce[:rule].flat_rule_set_node_field_index_map? %>
, NULL
NULL, /* No rule set node field index map (flat map) */
<% else %>
, &r_<%= reduce[:rule].name.gsub("$", "_") %><%= reduce[:rule].id %>_node_field_index_map[0]
&r_<%= reduce[:rule].name.gsub("$", "_") %><%= reduce[:rule].id %>_node_field_index_map[0], /* Rule set node field index map */
<% end %>
, <%= reduce[:rule].rule_set.ast_fields.size %>
, <%= reduce[:propagate_optional_target] %>
<%= reduce[:rule].rule_set.ast_fields.size %>, /* Number of AST fields */
<%= reduce[:propagate_optional_target] %>}, /* Propagate optional target? */
<% else %>
<%= reduce[:n_states] %>u},
<% end %>
},
<% end %>
};

17
assets/parser.d.erb
View File

@ -875,17 +875,22 @@ immutable ushort[<%= rule.rule_set_node_field_index_map.size %>] r_<%= rule.name
/** Parser reduce table. */
private immutable reduce_t[] parser_reduce_table = [
<% @parser.reduce_table.each do |reduce| %>
reduce_t(<%= reduce[:token_id] %>u, <%= reduce[:rule_id] %>u, <%= reduce[:rule_set_id] %>u, <%= reduce[:n_states] %>u
reduce_t(
<%= reduce[:token_id] %>u, /* Token: <%= reduce[:token] ? reduce[:token].name : "(any)" %> */
<%= reduce[:rule_id] %>u, /* Rule ID */
<%= reduce[:rule_set_id] %>u, /* Rule set ID (<%= reduce[:rule].rule_set.name %>) */
<% if @grammar.ast %>
<%= reduce[:n_states] %>u, /* Number of states */
<% if reduce[:rule].flat_rule_set_node_field_index_map? %>
, null
null, /* No rule set node field index map (flat map) */
<% else %>
, &r_<%= reduce[:rule].name.gsub("$", "_") %><%= reduce[:rule].id %>_node_field_index_map[0]
&r_<%= reduce[:rule].name.gsub("$", "_") %><%= reduce[:rule].id %>_node_field_index_map[0], /* Rule set node field index map */
<% end %>
, <%= reduce[:rule].rule_set.ast_fields.size %>
, <%= reduce[:propagate_optional_target] %>
<%= reduce[:rule].rule_set.ast_fields.size %>, /* Number of AST fields */
<%= reduce[:propagate_optional_target] %>), /* Propagate optional target? */
<% else %>
<%= reduce[:n_states] %>u), /* Number of states */
<% end %>
),
<% end %>
];

2
lib/propane/parser.rb
View File

@ -92,7 +92,7 @@ class Propane
propagate_optional_target: rule.optional? && rule.components.size == 1}]
elsif reduce_actions = item_set.reduce_actions
reduce_actions.map do |token, rule|
{token_id: token.id, rule_id: rule.id, rule: rule,
{token: token, token_id: token.id, rule_id: rule.id, rule: rule,
rule_set_id: rule.rule_set.id, n_states: rule.components.size,
propagate_optional_target: rule.optional? && rule.components.size == 1}
end