josh/propane
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Add position fields to AST nodes (not populated yet) - #27

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josh committed 2024-07-19 14:34:50 -04:00
1 parent eae2e17f41
commit f4ae1b8601
3 files changed
+38 -10
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assets/parser.d.erb
+19 -6
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@@ -8,6 +8,8 @@
module <%= @grammar.modulename %>;
<% end %>
import core.stdc.stdlib : malloc;
/**************************************************************************
* User code blocks
*************************************************************************/
@@ -86,11 +88,21 @@ public struct <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>
<%= @grammar.prefix %>position_t end_position;
}
/** Common AST node structure. */
private struct ASTNode
{
<%= @grammar.prefix %>position_t position;
<%= @grammar.prefix %>position_t end_position;
void *[0] fields;
}
<% @parser.rule_sets.each do |name, rule_set| %>
<% next if name.start_with?("$") %>
<% next if rule_set.optional? %>
public struct <%= @grammar.ast_prefix %><%= name %><%= @grammar.ast_suffix %>
{
<%= @grammar.prefix %>position_t position;
<%= @grammar.prefix %>position_t end_position;
<% rule_set.ast_fields.each do |fields| %>
union
{
@@ -1049,26 +1061,27 @@ public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * cont
}
else if (parser_reduce_table[reduce_index].n_states > 0)
{
void *[] node_fields = new void *[parser_reduce_table[reduce_index].rule_set_node_field_array_size];
foreach (i; 0..parser_reduce_table[reduce_index].rule_set_node_field_array_size)
size_t n_fields = parser_reduce_table[reduce_index].rule_set_node_field_array_size;
ASTNode * node = cast(ASTNode *)malloc(ASTNode.sizeof + n_fields * (void *).sizeof);
foreach (i; 0..n_fields)
{
node_fields[i] = null;
node.fields[i] = null;
}
if (parser_reduce_table[reduce_index].rule_set_node_field_index_map is null)
{
foreach (i; 0..parser_reduce_table[reduce_index].n_states)
{
node_fields[i] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].ast_node;
node.fields[i] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].ast_node;
}
}
else
{
foreach (i; 0..parser_reduce_table[reduce_index].n_states)
{
node_fields[parser_reduce_table[reduce_index].rule_set_node_field_index_map[i]] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].ast_node;
node.fields[parser_reduce_table[reduce_index].rule_set_node_field_index_map[i]] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].ast_node;
}
}
reduced_parser_node = node_fields.ptr;
reduced_parser_node = node;
}
else
{