Add AST generation - #22
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@@ -41,13 +41,44 @@ typedef uint32_t <%= @grammar.prefix %>code_point_t;
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/** User header code blocks. */
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<%= @grammar.code_blocks.fetch("header", "") %>
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<% if @grammar.ast %>
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/** Parser values type. */
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typedef <%= @grammar.ptype %> <%= @grammar.prefix %>value_t;
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<% else %>
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/** Parser values type(s). */
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typedef union
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{
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<% @grammar.ptypes.each do |name, typestring| %>
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<% @grammar.ptypes.each do |name, typestring| %>
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<%= typestring %> v_<%= name %>;
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<% end %>
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<% end %>
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} <%= @grammar.prefix %>value_t;
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<% end %>
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<% if @grammar.ast %>
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/** AST node types. @{ */
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typedef struct Token
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{
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<%= @grammar.prefix %>token_t token;
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<%= @grammar.prefix %>value_t pvalue;
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} Token;
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<% @parser.rule_sets.each do |name, rule_set| %>
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<% next if name.start_with?("$") %>
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struct <%= name %>;
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<% end %>
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<% @parser.rule_sets.each do |name, rule_set| %>
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<% next if name.start_with?("$") %>
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typedef struct <%= name %>
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{
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<% rule_set.ast_fields.each do |name, type| %>
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struct <%= type %> * <%= name %>;
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<% end %>
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} <%= name %>;
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<% end %>
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/** @} */
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<% end %>
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/**
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* A structure to keep track of parser position.
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@@ -107,7 +138,11 @@ typedef struct
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/* Parser context data. */
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/** Parse result value. */
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<% if @grammar.ast %>
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Start * parse_result;
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<% else %>
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<%= @grammar.prefix %>value_t parse_result;
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<% end %>
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/** Unexpected token received. */
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<%= @grammar.prefix %>token_t token;
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@@ -132,7 +167,11 @@ size_t <%= @grammar.prefix %>lex(<%= @grammar.prefix %>context_t * context, <%=
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size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context);
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<% if @grammar.ast %>
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Start * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context);
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<% else %>
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<%= start_rule_type[1] %> <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context);
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<% end %>
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<%= @grammar.prefix %>position_t <%= @grammar.prefix %>position(<%= @grammar.prefix %>context_t * context);
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