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#ifndef WP_PARSER_C_H_
#define WP_PARSER_C_H_
#include "wp_parser_y.h"
#ifdef __cplusplus
extern "C" {
#endif
struct wp_parser* wp_c_parser_new (char const* function_body);
#ifdef __cplusplus
}
#endif
#ifdef __cplusplus
#include <set>
#include <string>
inline
double
wp_ast_eval (struct wp_node* node)
{
double result;
switch (node->type)
{
case WP_NUMBER:
result = ((struct wp_number*)node)->value;
break;
case WP_SYMBOL:
result = *(((struct wp_symbol*)node)->pointer);
break;
case WP_ADD:
result = wp_ast_eval(node->l) + wp_ast_eval(node->r);
break;
case WP_SUB:
result = wp_ast_eval(node->l) - wp_ast_eval(node->r);
break;
case WP_MUL:
result = wp_ast_eval(node->l) * wp_ast_eval(node->r);
break;
case WP_DIV:
result = wp_ast_eval(node->l) / wp_ast_eval(node->r);
break;
case WP_NEG:
result = -wp_ast_eval(node->l);
break;
case WP_F1:
result = wp_call_f1(((struct wp_f1*)node)->ftype,
wp_ast_eval(((struct wp_f1*)node)->l));
break;
case WP_F2:
result = wp_call_f2(((struct wp_f2*)node)->ftype,
wp_ast_eval(((struct wp_f2*)node)->l),
wp_ast_eval(((struct wp_f2*)node)->r));
break;
case WP_ADD_VP:
result = node->lvp.v + *(node->rp);
break;
case WP_ADD_PP:
result = *(node->lvp.p) + *(node->rp);
break;
case WP_SUB_VP:
result = node->lvp.v - *(node->rp);
break;
case WP_SUB_PP:
result = *(node->lvp.p) - *(node->rp);
break;
case WP_MUL_VP:
result = node->lvp.v * *(node->rp);
break;
case WP_MUL_PP:
result = *(node->lvp.p) * *(node->rp);
break;
case WP_DIV_VP:
result = node->lvp.v / *(node->rp);
break;
case WP_DIV_PP:
result = *(node->lvp.p) / *(node->rp);
break;
case WP_NEG_P:
result = -*(node->lvp.p);
break;
default:
yyerror("wp_ast_eval: unknown node type %d\n", node->type);
}
return result;
}
inline
void
wp_ast_get_symbols (struct wp_node* node, std::set<std::string>& symbols)
{
switch (node->type)
{
case WP_NUMBER:
break;
case WP_SYMBOL:
symbols.emplace(((struct wp_symbol*)node)->name);
break;
case WP_ADD:
case WP_SUB:
case WP_MUL:
case WP_DIV:
case WP_ADD_PP:
case WP_SUB_PP:
case WP_MUL_PP:
case WP_DIV_PP:
wp_ast_get_symbols(node->l, symbols);
wp_ast_get_symbols(node->r, symbols);
break;
case WP_NEG:
case WP_NEG_P:
wp_ast_get_symbols(node->l, symbols);
break;
case WP_F1:
wp_ast_get_symbols(((struct wp_f1*)node)->l, symbols);
break;
case WP_F2:
wp_ast_get_symbols(((struct wp_f2*)node)->l, symbols);
wp_ast_get_symbols(((struct wp_f2*)node)->r, symbols);
break;
case WP_ADD_VP:
case WP_SUB_VP:
case WP_MUL_VP:
case WP_DIV_VP:
wp_ast_get_symbols(node->r, symbols);
break;
default:
yyerror("wp_ast_get_symbols: unknown node type %d\n", node->type);
}
}
#endif
#endif
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