Function compile_parse

src/engine/function.cpp:2590–3082

}

static void compile_parse( PARSE * parse, compiler * c, int32_t result_location )
{
    compile_emit_debug(c, parse->line);
    if ( parse->type == PARSE_APPEND )
    {
        compile_append_chain( parse, c );
        adjust_result( c, RESULT_STACK, result_location );
    }
    else if ( parse->type == PARSE_EVAL )
    {
        /* FIXME: This is only needed because of the bizarre parsing of
         * conditions.
         */
        if ( parse->num == EXPR_EXISTS )
            compile_parse( parse->left, c, result_location );
        else
        {
            int32_t f = compile_new_label( c );
            int32_t end = compile_new_label( c );

            out_printf( "%s:%d: Conditional used as list (check operator "
                "precedence).\n", object_str( parse->file ), parse->line );

            /* Emit the condition */
            compile_condition( parse, c, 0, f );
            compile_emit( c, INSTR_PUSH_CONSTANT, compile_emit_constant( c,
                constant_true ) );
            compile_emit_branch( c, INSTR_JUMP, end );
            compile_set_label( c, f );
            compile_emit( c, INSTR_PUSH_EMPTY, 0 );
            compile_set_label( c, end );
            adjust_result( c, RESULT_STACK, result_location );
        }
    }
    else if ( parse->type == PARSE_FOREACH )
    {
        int32_t var = compile_emit_constant( c, parse->string );
        int32_t top = compile_new_label( c );
        int32_t end = compile_new_label( c );
        int32_t continue_ = compile_new_label( c );

        /*
         * Evaluate the list.
         */
        compile_parse( parse->left, c, RESULT_STACK );

        /* Localize the loop variable */
        if ( parse->num )
        {
            compile_emit( c, INSTR_PUSH_EMPTY, 0 );
            compile_emit( c, INSTR_PUSH_LOCAL, var );
            compile_emit( c, INSTR_SWAP, 1 );
            compile_push_cleanup( c, INSTR_POP_LOCAL, var );
        }

        compile_emit( c, INSTR_FOR_INIT, 0 );
        compile_set_label( c, top );
        compile_emit_branch( c, INSTR_FOR_LOOP, end );