[Feature #19719] Universal Parser

Introduce Universal Parser mode for the parser.
This commit includes these changes:

* Introduce `UNIVERSAL_PARSER` macro. All of CRuby related functions
  are passed via `struct rb_parser_config_struct` when this macro is enabled.
* Add CI task with 'cppflags=-DUNIVERSAL_PARSER' for ubuntu.

1 files changed, 642 insertions, 0 deletions

diff --git a/rubyparser.h b/rubyparser.h
new file mode 100644
index 0000000000..c3e3d870e2
--- /dev/null
+++ b/rubyparser.h
@@ -0,0 +1,642 @@
+#ifndef RUBY_RUBYPARSER_H
+#define RUBY_RUBYPARSER_H 1
+/*
+ * This is a header file for librubyparser interface
+ */
+
+#ifdef UNIVERSAL_PARSER
+
+#define rb_encoding void
+#define OnigCodePoint unsigned int
+#include "parser_st.h"
+#include "parser_value.h"
+
+#else
+
+#include "ruby/encoding.h"
+
+#endif
+
+/*
+ * AST Node
+ */
+enum node_type {
+    NODE_SCOPE,
+    NODE_BLOCK,
+    NODE_IF,
+    NODE_UNLESS,
+    NODE_CASE,
+    NODE_CASE2,
+    NODE_CASE3,
+    NODE_WHEN,
+    NODE_IN,
+    NODE_WHILE,
+    NODE_UNTIL,
+    NODE_ITER,
+    NODE_FOR,
+    NODE_FOR_MASGN,
+    NODE_BREAK,
+    NODE_NEXT,
+    NODE_REDO,
+    NODE_RETRY,
+    NODE_BEGIN,
+    NODE_RESCUE,
+    NODE_RESBODY,
+    NODE_ENSURE,
+    NODE_AND,
+    NODE_OR,
+    NODE_MASGN,
+    NODE_LASGN,
+    NODE_DASGN,
+    NODE_GASGN,
+    NODE_IASGN,
+    NODE_CDECL,
+    NODE_CVASGN,
+    NODE_OP_ASGN1,
+    NODE_OP_ASGN2,
+    NODE_OP_ASGN_AND,
+    NODE_OP_ASGN_OR,
+    NODE_OP_CDECL,
+    NODE_CALL,
+    NODE_OPCALL,
+    NODE_FCALL,
+    NODE_VCALL,
+    NODE_QCALL,
+    NODE_SUPER,
+    NODE_ZSUPER,
+    NODE_LIST,
+    NODE_ZLIST,
+    NODE_VALUES,
+    NODE_HASH,
+    NODE_RETURN,
+    NODE_YIELD,
+    NODE_LVAR,
+    NODE_DVAR,
+    NODE_GVAR,
+    NODE_IVAR,
+    NODE_CONST,
+    NODE_CVAR,
+    NODE_NTH_REF,
+    NODE_BACK_REF,
+    NODE_MATCH,
+    NODE_MATCH2,
+    NODE_MATCH3,
+    NODE_LIT,
+    NODE_STR,
+    NODE_DSTR,
+    NODE_XSTR,
+    NODE_DXSTR,
+    NODE_EVSTR,
+    NODE_DREGX,
+    NODE_ONCE,
+    NODE_ARGS,
+    NODE_ARGS_AUX,
+    NODE_OPT_ARG,
+    NODE_KW_ARG,
+    NODE_POSTARG,
+    NODE_ARGSCAT,
+    NODE_ARGSPUSH,
+    NODE_SPLAT,
+    NODE_BLOCK_PASS,
+    NODE_DEFN,
+    NODE_DEFS,
+    NODE_ALIAS,
+    NODE_VALIAS,
+    NODE_UNDEF,
+    NODE_CLASS,
+    NODE_MODULE,
+    NODE_SCLASS,
+    NODE_COLON2,
+    NODE_COLON3,
+    NODE_DOT2,
+    NODE_DOT3,
+    NODE_FLIP2,
+    NODE_FLIP3,
+    NODE_SELF,
+    NODE_NIL,
+    NODE_TRUE,
+    NODE_FALSE,
+    NODE_ERRINFO,
+    NODE_DEFINED,
+    NODE_POSTEXE,
+    NODE_DSYM,
+    NODE_ATTRASGN,
+    NODE_LAMBDA,
+    NODE_ARYPTN,
+    NODE_HSHPTN,
+    NODE_FNDPTN,
+    NODE_ERROR,
+    NODE_LAST
+};
+
+
+#define nd_head  u1.node
+#define nd_alen  u2.argc
+#define nd_next  u3.node
+
+#define nd_cond  u1.node
+#define nd_body  u2.node
+#define nd_else  u3.node
+
+#define nd_resq  u2.node
+#define nd_ensr  u3.node
+
+#define nd_1st   u1.node
+#define nd_2nd   u2.node
+
+#define nd_stts  u1.node
+
+#define nd_entry u3.id
+#define nd_vid   u1.id
+
+#define nd_var   u1.node
+#define nd_iter  u3.node
+
+#define nd_value u2.node
+#define nd_aid   u3.id
+
+#define nd_lit   u1.value
+
+#define nd_recv  u1.node
+#define nd_mid   u2.id
+#define nd_args  u3.node
+#define nd_ainfo u3.args
+
+#define nd_defn  u3.node
+
+#define nd_cpath u1.node
+#define nd_super u3.node
+
+#define nd_beg   u1.node
+#define nd_end   u2.node
+#define nd_state u3.state
+
+#define nd_nth   u2.argc
+
+#define nd_alias  u1.id
+#define nd_orig   u2.id
+#define nd_undef  u2.node
+
+#define nd_brace u2.argc
+
+#define nd_pconst     u1.node
+#define nd_pkwargs    u2.node
+#define nd_pkwrestarg u3.node
+
+#define nd_apinfo u3.apinfo
+
+#define nd_fpinfo u3.fpinfo
+
+// for NODE_SCOPE
+#define nd_tbl   u1.tbl
+
+// for NODE_ARGS_AUX
+#define nd_pid   u1.id
+#define nd_plen  u2.argc
+#define nd_cflag u2.id
+
+// for ripper
+#define nd_cval  u3.value
+#define nd_rval  u2.value
+#define nd_tag   u1.id
+
+#ifndef FLEX_ARY_LEN
+/* From internal/compilers.h */
+/* A macro for defining a flexible array, like: VALUE ary[FLEX_ARY_LEN]; */
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
+# define FLEX_ARY_LEN   /* VALUE ary[]; */
+#elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
+# define FLEX_ARY_LEN 0 /* VALUE ary[0]; */
+#else
+# define FLEX_ARY_LEN 1 /* VALUE ary[1]; */
+#endif
+#endif
+
+typedef struct rb_ast_id_table {
+    int size;
+    ID ids[FLEX_ARY_LEN];
+} rb_ast_id_table_t;
+
+typedef struct rb_code_position_struct {
+    int lineno;
+    int column;
+} rb_code_position_t;
+
+typedef struct rb_code_location_struct {
+    rb_code_position_t beg_pos;
+    rb_code_position_t end_pos;
+} rb_code_location_t;
+
+typedef struct RNode {
+    VALUE flags;
+    union {
+        struct RNode *node;
+        ID id;
+        VALUE value;
+        rb_ast_id_table_t *tbl;
+    } u1;
+    union {
+        struct RNode *node;
+        ID id;
+        long argc;
+        VALUE value;
+    } u2;
+    union {
+        struct RNode *node;
+        ID id;
+        long state;
+        struct rb_args_info *args;
+        struct rb_ary_pattern_info *apinfo;
+        struct rb_fnd_pattern_info *fpinfo;
+        VALUE value;
+    } u3;
+    rb_code_location_t nd_loc;
+    int node_id;
+} NODE;
+
+/* FL     : 0..4: T_TYPES, 5: KEEP_WB, 6: PROMOTED, 7: FINALIZE, 8: UNUSED, 9: UNUSED, 10: EXIVAR, 11: FREEZE */
+/* NODE_FL: 0..4: T_TYPES, 5: KEEP_WB, 6: PROMOTED, 7: NODE_FL_NEWLINE,
+ *          8..14: nd_type,
+ *          15..: nd_line
+ */
+#define NODE_FL_NEWLINE              (((VALUE)1)<<7)
+
+#define NODE_TYPESHIFT 8
+#define NODE_TYPEMASK  (((VALUE)0x7f)<<NODE_TYPESHIFT)
+
+#define nd_type(n) ((int) (((n)->flags & NODE_TYPEMASK)>>NODE_TYPESHIFT))
+#define nd_set_type(n,t) \
+    rb_node_set_type(n, t)
+#define nd_init_type(n,t) \
+    (n)->flags=(((n)->flags&~NODE_TYPEMASK)|((((unsigned long)(t))<<NODE_TYPESHIFT)&NODE_TYPEMASK))
+
+struct rb_args_info {
+    NODE *pre_init;
+    NODE *post_init;
+
+    int pre_args_num;  /* count of mandatory pre-arguments */
+    int post_args_num; /* count of mandatory post-arguments */
+
+    ID first_post_arg;
+
+    ID rest_arg;
+    ID block_arg;
+
+    NODE *kw_args;
+    NODE *kw_rest_arg;
+
+    NODE *opt_args;
+    unsigned int no_kwarg: 1;
+    unsigned int ruby2_keywords: 1;
+    unsigned int forwarding: 1;
+
+    VALUE imemo;
+};
+
+struct rb_ary_pattern_info {
+    NODE *pre_args;
+    NODE *rest_arg;
+    NODE *post_args;
+};
+
+struct rb_fnd_pattern_info {
+    NODE *pre_rest_arg;
+    NODE *args;
+    NODE *post_rest_arg;
+};
+
+typedef struct node_buffer_struct node_buffer_t;
+/* T_IMEMO/ast */
+typedef struct rb_ast_body_struct {
+    const NODE *root;
+    VALUE compile_option;
+    VALUE script_lines;
+    // script_lines is either:
+    // - a Fixnum that represents the line count of the original source, or
+    // - an Array that contains the lines of the original source
+} rb_ast_body_t;
+typedef struct rb_ast_struct {
+    VALUE flags;
+    node_buffer_t *node_buffer;
+    rb_ast_body_t body;
+} rb_ast_t;
+
+
+
+/*
+ * Parser Interface
+ */
+
+typedef struct parser_params rb_parser_t;
+typedef struct rb_imemo_tmpbuf_struct rb_imemo_tmpbuf_t;
+
+#ifdef UNIVERSAL_PARSER
+typedef struct rb_parser_config_struct {
+    /*
+     * Reference counter.
+     *   This is needed because both parser and ast refer
+     *   same config pointer.
+     *   We can remove this, once decuple parser and ast from Ruby GC.
+     */
+    int counter;
+
+    /* For parser_st */
+    st_functions_t st_functions;
+
+    /* Memory */
+    void *(*malloc)(size_t size);
+    void *(*calloc)(size_t number, size_t size);
+    void *(*realloc)(void *ptr, size_t newsiz);
+    void (*free)(void *ptr);
+    void *(*alloc_n)(size_t nelems, size_t elemsiz);
+    void *(*alloc)(size_t elemsiz);
+    void *(*realloc_n)(void *ptr, size_t newelems, size_t newsiz);
+    void *(*zalloc)(size_t elemsiz);
+    void *(*rb_memmove)(void *dest, const void *src, size_t t, size_t n);
+    void *(*nonempty_memcpy)(void *dest, const void *src, size_t t, size_t n);
+    void *(*xmalloc_mul_add)(size_t x, size_t y, size_t z);
+
+    /* imemo */
+    // TODO: Should it return `rb_strterm_t *'?
+    VALUE (*new_strterm)(VALUE v1, VALUE v2, VALUE v3, VALUE v0, int heredoc);
+    int (*strterm_is_heredoc)(VALUE strterm);
+    VALUE (*tmpbuf_auto_free_pointer)(void);
+    void *(*tmpbuf_set_ptr)(VALUE v, void *ptr);
+    rb_imemo_tmpbuf_t *(*tmpbuf_parser_heap)(void *buf, rb_imemo_tmpbuf_t *old_heap, size_t cnt);
+    rb_ast_t *(*ast_new)(VALUE nb);
+
+    // VALUE rb_suppress_tracing(VALUE (*func)(VALUE), VALUE arg);
+    VALUE (*compile_callback)(VALUE (*func)(VALUE), VALUE arg);
+    NODE *(*reg_named_capture_assign)(struct parser_params* p, VALUE regexp, const rb_code_location_t *loc);
+    int (*script_lines_defined)(void);
+    VALUE (*script_lines_get)(void);
+
+    /* Object */
+    VALUE (*obj_freeze)(VALUE obj);
+    VALUE (*obj_hide)(VALUE obj);
+    int (*obj_frozen)(VALUE obj);
+    int (*type_p)(VALUE, int);
+    void (*obj_freeze_raw)(VALUE obj);
+
+    int (*fixnum_p)(VALUE);
+    int (*symbol_p)(VALUE);
+
+    /* Variable */
+    VALUE (*attr_get)(VALUE obj, ID id);
+
+    /* Array */
+    VALUE (*ary_new)(void);
+    VALUE (*ary_push)(VALUE ary, VALUE elem);
+    VALUE (*ary_new_from_args)(long n, ...);
+    VALUE (*ary_pop)(VALUE ary);
+    VALUE (*ary_last)(int argc, const VALUE *argv, VALUE ary);
+    VALUE (*ary_unshift)(VALUE ary, VALUE item);
+    VALUE (*ary_new2)(long capa); // ary_new_capa
+    VALUE (*ary_entry)(VALUE ary, long offset);
+    VALUE (*ary_join)(VALUE ary, VALUE sep);
+    VALUE (*ary_reverse)(VALUE ary);
+    VALUE (*ary_clear)(VALUE ary);
+    long (*array_len)(VALUE a);
+    VALUE (*array_aref)(VALUE, long);
+
+    /* Symbol */
+    VALUE (*sym_intern_ascii_cstr)(const char *ptr);
+    ID (*make_temporary_id)(size_t n);
+    int (*is_local_id)(ID);
+    int (*is_attrset_id)(ID);
+    int (*is_global_name_punct)(const int c);
+    int (*id_type)(ID id);
+    ID (*id_attrset)(ID);
+    ID (*intern)(const char *name);
+    ID (*intern2)(const char *name, long len);
+    ID (*intern3)(const char *name, long len, rb_encoding *enc);
+    ID (*intern_str)(VALUE str);
+    int (*is_notop_id)(ID);
+    int (*enc_symname_type)(const char *name, long len, rb_encoding *enc, unsigned int allowed_attrset);
+    VALUE (*str_intern)(VALUE str);
+    const char *(*id2name)(ID id);
+    VALUE (*id2str)(ID id);
+    VALUE (*id2sym)(ID x);
+    ID (*sym2id)(VALUE sym);
+
+    /* String */
+    VALUE (*str_catf)(VALUE str, const char *format, ...);
+    VALUE (*str_cat_cstr)(VALUE str, const char *ptr);
+    VALUE (*str_subseq)(VALUE str, long beg, long len);
+    VALUE (*str_dup)(VALUE str);
+    VALUE (*str_new_frozen)(VALUE orig);
+    VALUE (*str_buf_new)(long capa);
+    VALUE (*str_buf_cat)(VALUE, const char*, long);
+    void (*str_modify)(VALUE str);
+    void (*str_set_len)(VALUE str, long len);
+    VALUE (*str_cat)(VALUE str, const char *ptr, long len);
+    VALUE (*str_resize)(VALUE str, long len);
+    VALUE (*str_new)(const char *ptr, long len);
+    VALUE (*str_new_cstr)(const char *ptr);
+    VALUE (*fstring)(VALUE);
+    int (*is_ascii_string)(VALUE str);
+    VALUE (*enc_str_new)(const char *ptr, long len, rb_encoding *enc);
+    VALUE (*enc_str_buf_cat)(VALUE str, const char *ptr, long len, rb_encoding *enc);
+    VALUE (*str_buf_append)(VALUE str, VALUE str2);
+    VALUE (*str_vcatf)(VALUE str, const char *fmt, va_list ap);
+    char *(*string_value_cstr)(volatile VALUE *ptr);
+    VALUE (*rb_sprintf)(const char *format, ...);
+    char *(*rstring_ptr)(VALUE str);
+    char *(*rstring_end)(VALUE str);
+    long (*rstring_len)(VALUE str);
+    VALUE (*filesystem_str_new_cstr)(const char *ptr);
+    VALUE (*obj_as_string)(VALUE);
+
+    /* Hash */
+    VALUE (*hash_clear)(VALUE hash);
+    VALUE (*hash_new)(void);
+    VALUE (*hash_aset)(VALUE hash, VALUE key, VALUE val);
+    VALUE (*hash_lookup)(VALUE hash, VALUE key);
+    VALUE (*ident_hash_new)(void);
+
+    /* Fixnum */
+    VALUE (*int2fix)(long i);
+
+    /* Bignum */
+    void (*bignum_negate)(VALUE b);
+    VALUE (*big_norm)(VALUE x);
+    VALUE (*int2big)(intptr_t n);
+    VALUE (*cstr_to_inum)(const char *str, int base, int badcheck);
+
+    /* Float */
+    VALUE (*float_new)(double d);
+    double (*float_value)(VALUE v);
+
+    /* Numeric */
+    long (*fix2int)(VALUE val);
+    int (*num2int)(VALUE val);
+    VALUE (*int_positive_pow)(long x, unsigned long y);
+    VALUE (*int2num)(int v);
+    long (*fix2long)(VALUE val);
+
+    /* Rational */
+    VALUE (*rational_new)(VALUE x, VALUE y);
+    VALUE (*rational_raw)(VALUE x, VALUE y);
+    VALUE (*rational_raw1)(VALUE x);
+    void (*rational_set_num)(VALUE r, VALUE n);
+    VALUE (*rational_get_num)(VALUE obj);
+
+    /* Complex */
+    VALUE (*complex_raw)(VALUE x, VALUE y);
+    void (*rcomplex_set_real)(VALUE cmp, VALUE r);
+    void (*rcomplex_set_imag)(VALUE cmp, VALUE i);
+    VALUE (*rcomplex_get_real)(VALUE obj);
+    VALUE (*rcomplex_get_imag)(VALUE obj);
+
+    /* IO */
+    int (*stderr_tty_p)(void);
+    void (*write_error_str)(VALUE mesg);
+    VALUE (*default_rs)(void);
+    VALUE (*io_write)(VALUE io, VALUE str);
+    VALUE (*io_flush)(VALUE io);
+    VALUE (*io_puts)(int argc, const VALUE *argv, VALUE out);
+    VALUE (*io_gets_internal)(VALUE io);
+
+    /* IO (Ractor) */
+    VALUE (*debug_output_stdout)(void);
+    VALUE (*debug_output_stderr)(void);
+
+    /* Encoding */
+    int (*is_usascii_enc)(rb_encoding *enc);
+    int (*enc_isalnum)(OnigCodePoint c, rb_encoding *enc);
+    int (*enc_precise_mbclen)(const char *p, const char *e, rb_encoding *enc);
+    int (*mbclen_charfound_p)(int len);
+    const char *(*enc_name)(rb_encoding *enc);
+    char *(*enc_prev_char)(const char *s, const char *p, const char *e, rb_encoding *enc);
+    rb_encoding* (*enc_get)(VALUE obj);
+    int (*enc_asciicompat)(rb_encoding *enc);
+    rb_encoding *(*utf8_encoding)(void);
+    VALUE (*enc_associate)(VALUE obj, rb_encoding *enc);
+    rb_encoding *(*ascii8bit_encoding)(void);
+    int (*enc_codelen)(int c, rb_encoding *enc);
+    int (*enc_mbcput)(unsigned int c, void *buf, rb_encoding *enc);
+    int (*char_to_option_kcode)(int c, int *option, int *kcode);
+    int (*ascii8bit_encindex)(void);
+    int (*enc_find_index)(const char *name);
+    rb_encoding *(*enc_from_index)(int idx);
+    VALUE (*enc_associate_index)(VALUE obj, int encindex);
+    int (*enc_isspace)(OnigCodePoint c, rb_encoding *enc);
+    int enc_coderange_7bit;
+    int enc_coderange_unknown;
+    rb_encoding *(*enc_compatible)(VALUE str1, VALUE str2);
+    VALUE (*enc_from_encoding)(rb_encoding *enc);
+    int (*encoding_get)(VALUE obj);
+    void (*encoding_set)(VALUE obj, int encindex);
+    int (*encoding_is_ascii8bit)(VALUE obj);
+    rb_encoding *(*usascii_encoding)(void);
+
+    /* Ractor */
+    VALUE (*ractor_make_shareable)(VALUE obj);
+
+    /* Compile */
+    int (*vm_keep_script_lines)(void);
+    // int rb_local_defined(ID id, const rb_iseq_t *iseq);
+    int (*local_defined)(ID, const void*);
+    // int rb_dvar_defined(ID id, const rb_iseq_t *iseq);
+    int (*dvar_defined)(ID, const void*);
+
+    /* Compile (parse.y) */
+    int (*literal_cmp)(VALUE val, VALUE lit);
+    parser_st_index_t (*literal_hash)(VALUE a);
+
+    /* Error (Exception) */
+    const char *(*builtin_class_name)(VALUE x);
+    VALUE (*syntax_error_append)(VALUE, VALUE, int, int, rb_encoding*, const char*, va_list);
+    void (*raise)(VALUE exc, const char *fmt, ...);
+    VALUE (*syntax_error_new)(void);
+
+    /* Eval */
+    VALUE (*errinfo)(void);
+    void (*set_errinfo)(VALUE err);
+    void (*exc_raise)(VALUE mesg);
+    VALUE (*make_exception)(int argc, const VALUE *argv);
+
+    /* GC */
+    void (*sized_xfree)(void *x, size_t size);
+    void *(*sized_realloc_n)(void *ptr, size_t new_count, size_t element_size, size_t old_count);
+    VALUE (*obj_write)(VALUE, VALUE *, VALUE);
+    VALUE (*obj_written)(VALUE, VALUE, VALUE);
+    void (*gc_register_mark_object)(VALUE object);
+    void (*gc_guard)(VALUE);
+    void (*gc_mark)(VALUE);
+    void (*gc_mark_movable)(VALUE ptr);
+    VALUE (*gc_location)(VALUE value);
+
+    /* Re */
+    VALUE (*reg_compile)(VALUE str, int options, const char *sourcefile, int sourceline);
+    VALUE (*reg_check_preprocess)(VALUE str);
+    int (*memcicmp)(const void *x, const void *y, long len);
+
+    /* Error */
+    void (*compile_warn)(const char *file, int line, const char *fmt, ...);
+    void (*compile_warning)(const char *file, int line, const char *fmt, ...);
+    void (*bug)(const char *fmt, ...);
+    void (*fatal)(const char *fmt, ...);
+    VALUE (*verbose)(void);
+
+    /* VM */
+    VALUE (*make_backtrace)(void);
+
+    /* Util */
+    unsigned long (*scan_hex)(const char *start, size_t len, size_t *retlen);
+    unsigned long (*scan_oct)(const char *start, size_t len, size_t *retlen);
+    unsigned long (*scan_digits)(const char *str, ssize_t len, int base, size_t *retlen, int *overflow);
+    double (*strtod)(const char *s00, char **se);
+
+    /* ctype */
+    int (*isspace)(int c);
+    int (*isascii)(int c);
+    int (*iscntrl)(int c);
+    int (*isalpha)(int c);
+    int (*isdigit)(int c);
+    int (*isalnum)(int c);
+    int (*isxdigit)(int c);
+    int (*strcasecmp)(const char *s1, const char *s2);
+    int (*strncasecmp)(const char *s1, const char *s2, size_t n);
+
+    /* Misc */
+    VALUE (*rbool)(VALUE);
+    int (*undef_p)(VALUE);
+    int (*rtest)(VALUE obj);
+    int (*nil_p)(VALUE obj);
+    int (*flonum_p)(VALUE obj);
+    VALUE qnil;
+    VALUE qtrue;
+    VALUE qfalse;
+    VALUE qundef;
+    VALUE eArgError;
+    VALUE mRubyVMFrozenCore;
+    int (*long2int)(long);
+    int (*special_const_p)(VALUE);
+    int (*builtin_type)(VALUE);
+    int (*snprintf)(char *str, size_t n, char const *fmt, ...);
+
+    VALUE (*node_case_when_optimizable_literal)(const NODE *const node);
+
+    /* For Ripper */
+    VALUE (*static_id2sym)(ID id);
+    long (*str_coderange_scan_restartable)(const char *s, const char *e, rb_encoding *enc, int *cr);
+} rb_parser_config_t;
+
+#undef rb_encoding
+#undef OnigCodePoint
+#endif /* UNIVERSAL_PARSER */
+
+RUBY_SYMBOL_EXPORT_BEGIN
+void rb_ruby_parser_free(void *ptr);
+rb_ast_t* rb_ruby_parser_compile_string(rb_parser_t *p, const char *f, VALUE s, int line);
+
+#ifdef UNIVERSAL_PARSER
+rb_parser_config_t *rb_ruby_parser_config_new(void *(*malloc)(size_t size));
+void rb_ruby_parser_config_free(rb_parser_config_t *config);
+rb_parser_t *rb_ruby_parser_allocate(rb_parser_config_t *config);
+rb_parser_t *rb_ruby_parser_new(rb_parser_config_t *config);
+#endif
+RUBY_SYMBOL_EXPORT_END
+
+#endif /* RUBY_RUBYPARSER_H */