josh/propane
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Allow user to specify AST node prefix or suffix

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Add ast_prefix and ast_suffix grammar statements.
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josh committed 2024-05-04 21:49:13 -04:00
1 parent d0f542cbd7
commit 153f9d28f8
10 files changed
+272 -53
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assets/parser.d.erb
+6 -6
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@@ -64,7 +64,7 @@ public union <%= @grammar.prefix %>value_t
<% if @grammar.ast %>
/** AST node types. @{ */
public struct Token
public struct <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>
{
<%= @grammar.prefix %>token_t token;
<%= @grammar.prefix %>value_t pvalue;
@@ -72,7 +72,7 @@ public struct Token
<% @parser.rule_sets.each do |name, rule_set| %>
<% next if name.start_with?("$") %>
public struct <%= name %>
public struct <%= @grammar.ast_prefix %><%= name %><%= @grammar.ast_suffix %>
{
<% rule_set.ast_fields.each do |fields| %>
union
@@ -144,7 +144,7 @@ public struct <%= @grammar.prefix %>context_t
/** Parse result value. */
<% if @grammar.ast %>
Start * parse_result;
<%= @grammar.ast_prefix %>Start<%= @grammar.ast_suffix %> * parse_result;
<% else %>
<%= @grammar.prefix %>value_t parse_result;
<% end %>
@@ -973,7 +973,7 @@ public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * cont
{
/* Successful parse. */
<% if @grammar.ast %>
context.parse_result = cast(Start *)statevalues[$-1].ast_node;
context.parse_result = cast(<%= @grammar.ast_prefix %>Start<%= @grammar.ast_suffix %> *)statevalues[$-1].ast_node;
<% else %>
context.parse_result = statevalues[$-1].pvalue;
<% end %>
@@ -988,7 +988,7 @@ public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * cont
{
/* We shifted a token, mark it consumed. */
<% if @grammar.ast %>
Token * token_ast_node = new Token(token, token_info.pvalue);
<%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %> * token_ast_node = new <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>(token, token_info.pvalue);
statevalues[$-1].ast_node = token_ast_node;
<% else %>
statevalues[$-1].pvalue = token_info.pvalue;
@@ -1075,7 +1075,7 @@ public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * cont
* @return Parse result value.
*/
<% if @grammar.ast %>
public Start * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
public <%= @grammar.ast_prefix %>Start<%= @grammar.ast_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
<% else %>
public <%= start_rule_type[1] %> <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
<% end %>