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parse.y
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parse.y
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/**********************************************************************
parse.y -
$Author$
created at: Fri May 28 18:02:42 JST 1993
Copyright (C) 1993-2007 Yukihiro Matsumoto
**********************************************************************/
%require "3.0"
%{
#if !YYPURE
# error needs pure parser
#endif
#define YYDEBUG 1
#define YYERROR_VERBOSE 1
#define YYSTACK_USE_ALLOCA 0
#define YYLTYPE rb_code_location_t
#define YYLTYPE_IS_DECLARED 1
/* For Ripper */
#ifdef RUBY_EXTCONF_H
# include RUBY_EXTCONF_H
#endif
#include "ruby/internal/config.h"
#include <errno.h>
#ifdef UNIVERSAL_PARSER
#include "internal/ruby_parser.h"
#include "parser_node.h"
#include "universal_parser.c"
#ifdef RIPPER
#undef T_NODE
#define T_NODE 0x1b
#define STATIC_ID2SYM p->config->static_id2sym
#define rb_str_coderange_scan_restartable p->config->str_coderange_scan_restartable
#endif
#define rb_warn_deprecated(fmt, suggest) rb_warn0(fmt " is deprecated; use " suggest " instead")
#else
#include "internal.h"
#include "internal/compile.h"
#include "internal/compilers.h"
#include "internal/complex.h"
#include "internal/encoding.h"
#include "internal/error.h"
#include "internal/hash.h"
#include "internal/imemo.h"
#include "internal/io.h"
#include "internal/numeric.h"
#include "internal/parse.h"
#include "internal/rational.h"
#include "internal/re.h"
#include "internal/ruby_parser.h"
#include "internal/symbol.h"
#include "internal/thread.h"
#include "internal/variable.h"
#include "node.h"
#include "parser_node.h"
#include "probes.h"
#include "regenc.h"
#include "ruby/encoding.h"
#include "ruby/regex.h"
#include "ruby/ruby.h"
#include "ruby/st.h"
#include "ruby/util.h"
#include "ruby/ractor.h"
#include "symbol.h"
#ifndef RIPPER
static void
bignum_negate(VALUE b)
{
BIGNUM_NEGATE(b);
}
static void
rational_set_num(VALUE r, VALUE n)
{
RATIONAL_SET_NUM(r, n);
}
static VALUE
rational_get_num(VALUE obj)
{
return RRATIONAL(obj)->num;
}
static void
rcomplex_set_real(VALUE cmp, VALUE r)
{
RCOMPLEX_SET_REAL(cmp, r);
}
static VALUE
rcomplex_get_real(VALUE obj)
{
return RCOMPLEX(obj)->real;
}
static void
rcomplex_set_imag(VALUE cmp, VALUE i)
{
RCOMPLEX_SET_IMAG(cmp, i);
}
static VALUE
rcomplex_get_imag(VALUE obj)
{
return RCOMPLEX(obj)->imag;
}
static bool
hash_literal_key_p(VALUE k)
{
switch (OBJ_BUILTIN_TYPE(k)) {
case T_NODE:
return false;
default:
return true;
}
}
static int
literal_cmp(VALUE val, VALUE lit)
{
if (val == lit) return 0;
if (!hash_literal_key_p(val) || !hash_literal_key_p(lit)) return -1;
return rb_iseq_cdhash_cmp(val, lit);
}
static st_index_t
literal_hash(VALUE a)
{
if (!hash_literal_key_p(a)) return (st_index_t)a;
return rb_iseq_cdhash_hash(a);
}
static VALUE
syntax_error_new(void)
{
return rb_class_new_instance(0, 0, rb_eSyntaxError);
}
static NODE *reg_named_capture_assign(struct parser_params* p, VALUE regexp, const YYLTYPE *loc);
#endif /* !RIPPER */
#define compile_callback rb_suppress_tracing
VALUE rb_io_gets_internal(VALUE io);
VALUE rb_node_case_when_optimizable_literal(const NODE *const node);
#endif /* !UNIVERSAL_PARSER */
static inline int
parse_isascii(int c)
{
return '\0' <= c && c <= '\x7f';
}
#undef ISASCII
#define ISASCII parse_isascii
static inline int
parse_isspace(int c)
{
return c == ' ' || ('\t' <= c && c <= '\r');
}
#undef ISSPACE
#define ISSPACE parse_isspace
static inline int
parse_iscntrl(int c)
{
return ('\0' <= c && c < ' ') || c == '\x7f';
}
#undef ISCNTRL
#define ISCNTRL(c) parse_iscntrl(c)
static inline int
parse_isupper(int c)
{
return 'A' <= c && c <= 'Z';
}
static inline int
parse_islower(int c)
{
return 'a' <= c && c <= 'z';
}
static inline int
parse_isalpha(int c)
{
return parse_isupper(c) || parse_islower(c);
}
#undef ISALPHA
#define ISALPHA(c) parse_isalpha(c)
static inline int
parse_isdigit(int c)
{
return '0' <= c && c <= '9';
}
#undef ISDIGIT
#define ISDIGIT(c) parse_isdigit(c)
static inline int
parse_isalnum(int c)
{
return parse_isalpha(c) || parse_isdigit(c);
}
#undef ISALNUM
#define ISALNUM(c) parse_isalnum(c)
static inline int
parse_isxdigit(int c)
{
return parse_isdigit(c) || ('A' <= c && c <= 'F') || ('a' <= c && c <= 'f');
}
#undef ISXDIGIT
#define ISXDIGIT(c) parse_isxdigit(c)
#include "parser_st.h"
#undef STRCASECMP
#define STRCASECMP rb_parser_st_locale_insensitive_strcasecmp
#undef STRNCASECMP
#define STRNCASECMP rb_parser_st_locale_insensitive_strncasecmp
#ifdef RIPPER
#include "ripper_init.h"
#endif
enum shareability {
shareable_none,
shareable_literal,
shareable_copy,
shareable_everything,
};
enum rescue_context {
before_rescue,
after_rescue,
after_else,
after_ensure,
};
struct lex_context {
unsigned int in_defined: 1;
unsigned int in_kwarg: 1;
unsigned int in_argdef: 1;
unsigned int in_def: 1;
unsigned int in_class: 1;
BITFIELD(enum shareability, shareable_constant_value, 2);
BITFIELD(enum rescue_context, in_rescue, 2);
};
typedef struct RNode_DEF_TEMP rb_node_def_temp_t;
typedef struct RNode_EXITS rb_node_exits_t;
#if defined(__GNUC__) && !defined(__clang__)
// Suppress "parameter passing for argument of type 'struct
// lex_context' changed" notes. `struct lex_context` is file scope,
// and has no ABI compatibility issue.
RBIMPL_WARNING_PUSH()
RBIMPL_WARNING_IGNORED(-Wpsabi)
RBIMPL_WARNING_POP()
// Not sure why effective even after popped.
#endif
#include "parse.h"
#define NO_LEX_CTXT (struct lex_context){0}
#define AREF(ary, i) RARRAY_AREF(ary, i)
#ifndef WARN_PAST_SCOPE
# define WARN_PAST_SCOPE 0
#endif
#define TAB_WIDTH 8
#define yydebug (p->debug) /* disable the global variable definition */
#define YYMALLOC(size) rb_parser_malloc(p, (size))
#define YYREALLOC(ptr, size) rb_parser_realloc(p, (ptr), (size))
#define YYCALLOC(nelem, size) rb_parser_calloc(p, (nelem), (size))
#define YYFREE(ptr) rb_parser_free(p, (ptr))
#define YYFPRINTF(out, ...) rb_parser_printf(p, __VA_ARGS__)
#define YY_LOCATION_PRINT(File, loc, p) \
rb_parser_printf(p, "%d.%d-%d.%d", \
(loc).beg_pos.lineno, (loc).beg_pos.column,\
(loc).end_pos.lineno, (loc).end_pos.column)
#define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (N) \
{ \
(Current).beg_pos = YYRHSLOC(Rhs, 1).beg_pos; \
(Current).end_pos = YYRHSLOC(Rhs, N).end_pos; \
} \
else \
{ \
(Current).beg_pos = YYRHSLOC(Rhs, 0).end_pos; \
(Current).end_pos = YYRHSLOC(Rhs, 0).end_pos; \
} \
while (0)
#define YY_(Msgid) \
(((Msgid)[0] == 'm') && (strcmp((Msgid), "memory exhausted") == 0) ? \
"nesting too deep" : (Msgid))
#define RUBY_SET_YYLLOC_FROM_STRTERM_HEREDOC(Current) \
rb_parser_set_location_from_strterm_heredoc(p, &p->lex.strterm->u.heredoc, &(Current))
#define RUBY_SET_YYLLOC_OF_DELAYED_TOKEN(Current) \
rb_parser_set_location_of_delayed_token(p, &(Current))
#define RUBY_SET_YYLLOC_OF_HEREDOC_END(Current) \
rb_parser_set_location_of_heredoc_end(p, &(Current))
#define RUBY_SET_YYLLOC_OF_DUMMY_END(Current) \
rb_parser_set_location_of_dummy_end(p, &(Current))
#define RUBY_SET_YYLLOC_OF_NONE(Current) \
rb_parser_set_location_of_none(p, &(Current))
#define RUBY_SET_YYLLOC(Current) \
rb_parser_set_location(p, &(Current))
#define RUBY_INIT_YYLLOC() \
{ \
{p->ruby_sourceline, (int)(p->lex.ptok - p->lex.pbeg)}, \
{p->ruby_sourceline, (int)(p->lex.pcur - p->lex.pbeg)}, \
}
#define IS_lex_state_for(x, ls) ((x) & (ls))
#define IS_lex_state_all_for(x, ls) (((x) & (ls)) == (ls))
#define IS_lex_state(ls) IS_lex_state_for(p->lex.state, (ls))
#define IS_lex_state_all(ls) IS_lex_state_all_for(p->lex.state, (ls))
# define SET_LEX_STATE(ls) \
parser_set_lex_state(p, ls, __LINE__)
static inline enum lex_state_e parser_set_lex_state(struct parser_params *p, enum lex_state_e ls, int line);
typedef VALUE stack_type;
static const rb_code_location_t NULL_LOC = { {0, -1}, {0, -1} };
# define SHOW_BITSTACK(stack, name) (p->debug ? rb_parser_show_bitstack(p, stack, name, __LINE__) : (void)0)
# define BITSTACK_PUSH(stack, n) (((p->stack) = ((p->stack)<<1)|((n)&1)), SHOW_BITSTACK(p->stack, #stack"(push)"))
# define BITSTACK_POP(stack) (((p->stack) = (p->stack) >> 1), SHOW_BITSTACK(p->stack, #stack"(pop)"))
# define BITSTACK_SET_P(stack) (SHOW_BITSTACK(p->stack, #stack), (p->stack)&1)
# define BITSTACK_SET(stack, n) ((p->stack)=(n), SHOW_BITSTACK(p->stack, #stack"(set)"))
/* A flag to identify keyword_do_cond, "do" keyword after condition expression.
Examples: `while ... do`, `until ... do`, and `for ... in ... do` */
#define COND_PUSH(n) BITSTACK_PUSH(cond_stack, (n))
#define COND_POP() BITSTACK_POP(cond_stack)
#define COND_P() BITSTACK_SET_P(cond_stack)
#define COND_SET(n) BITSTACK_SET(cond_stack, (n))
/* A flag to identify keyword_do_block; "do" keyword after command_call.
Example: `foo 1, 2 do`. */
#define CMDARG_PUSH(n) BITSTACK_PUSH(cmdarg_stack, (n))
#define CMDARG_POP() BITSTACK_POP(cmdarg_stack)
#define CMDARG_P() BITSTACK_SET_P(cmdarg_stack)
#define CMDARG_SET(n) BITSTACK_SET(cmdarg_stack, (n))
struct vtable {
ID *tbl;
int pos;
int capa;
struct vtable *prev;
};
struct local_vars {
struct vtable *args;
struct vtable *vars;
struct vtable *used;
# if WARN_PAST_SCOPE
struct vtable *past;
# endif
struct local_vars *prev;
# ifndef RIPPER
struct {
NODE *outer, *inner, *current;
} numparam;
# endif
};
enum {
ORDINAL_PARAM = -1,
NO_PARAM = 0,
NUMPARAM_MAX = 9,
};
#define DVARS_INHERIT ((void*)1)
#define DVARS_TOPSCOPE NULL
#define DVARS_TERMINAL_P(tbl) ((tbl) == DVARS_INHERIT || (tbl) == DVARS_TOPSCOPE)
typedef struct token_info {
const char *token;
rb_code_position_t beg;
int indent;
int nonspc;
struct token_info *next;
} token_info;
/*
Structure of Lexer Buffer:
lex.pbeg lex.ptok lex.pcur lex.pend
| | | |
|------------+------------+------------|
|<---------->|
token
*/
struct parser_params {
rb_imemo_tmpbuf_t *heap;
YYSTYPE *lval;
YYLTYPE *yylloc;
struct {
rb_strterm_t *strterm;
VALUE (*gets)(struct parser_params*,VALUE);
VALUE input;
VALUE lastline;
VALUE nextline;
const char *pbeg;
const char *pcur;
const char *pend;
const char *ptok;
union {
long ptr;
VALUE (*call)(VALUE, int);
} gets_;
enum lex_state_e state;
/* track the nest level of any parens "()[]{}" */
int paren_nest;
/* keep p->lex.paren_nest at the beginning of lambda "->" to detect tLAMBEG and keyword_do_LAMBDA */
int lpar_beg;
/* track the nest level of only braces "{}" */
int brace_nest;
} lex;
stack_type cond_stack;
stack_type cmdarg_stack;
int tokidx;
int toksiz;
int heredoc_end;
int heredoc_indent;
int heredoc_line_indent;
char *tokenbuf;
struct local_vars *lvtbl;
st_table *pvtbl;
st_table *pktbl;
int line_count;
int ruby_sourceline; /* current line no. */
const char *ruby_sourcefile; /* current source file */
VALUE ruby_sourcefile_string;
rb_encoding *enc;
token_info *token_info;
VALUE case_labels;
rb_node_exits_t *exits;
VALUE debug_buffer;
VALUE debug_output;
struct {
VALUE token;
int beg_line;
int beg_col;
int end_line;
int end_col;
} delayed;
ID cur_arg;
rb_ast_t *ast;
int node_id;
int max_numparam;
struct lex_context ctxt;
#ifdef UNIVERSAL_PARSER
rb_parser_config_t *config;
#endif
/* compile_option */
signed int frozen_string_literal:2; /* -1: not specified, 0: false, 1: true */
unsigned int command_start:1;
unsigned int eofp: 1;
unsigned int ruby__end__seen: 1;
unsigned int debug: 1;
unsigned int has_shebang: 1;
unsigned int token_seen: 1;
unsigned int token_info_enabled: 1;
# if WARN_PAST_SCOPE
unsigned int past_scope_enabled: 1;
# endif
unsigned int error_p: 1;
unsigned int cr_seen: 1;
#ifndef RIPPER
/* Ruby core only */
unsigned int do_print: 1;
unsigned int do_loop: 1;
unsigned int do_chomp: 1;
unsigned int do_split: 1;
unsigned int error_tolerant: 1;
unsigned int keep_tokens: 1;
NODE *eval_tree_begin;
NODE *eval_tree;
VALUE error_buffer;
VALUE debug_lines;
const struct rb_iseq_struct *parent_iseq;
/* store specific keyword locations to generate dummy end token */
VALUE end_expect_token_locations;
/* id for terms */
int token_id;
/* Array for term tokens */
VALUE tokens;
#else
/* Ripper only */
VALUE value;
VALUE result;
VALUE parsing_thread;
#endif
};
#define NUMPARAM_ID_P(id) numparam_id_p(p, id)
#define NUMPARAM_ID_TO_IDX(id) (unsigned int)(((id) >> ID_SCOPE_SHIFT) - (tNUMPARAM_1 - 1))
#define NUMPARAM_IDX_TO_ID(idx) TOKEN2LOCALID((tNUMPARAM_1 - 1 + (idx)))
static int
numparam_id_p(struct parser_params *p, ID id)
{
if (!is_local_id(id) || id < (tNUMPARAM_1 << ID_SCOPE_SHIFT)) return 0;
unsigned int idx = NUMPARAM_ID_TO_IDX(id);
return idx > 0 && idx <= NUMPARAM_MAX;
}
static void numparam_name(struct parser_params *p, ID id);
#define intern_cstr(n,l,en) rb_intern3(n,l,en)
#define STR_NEW(ptr,len) rb_enc_str_new((ptr),(len),p->enc)
#define STR_NEW0() rb_enc_str_new(0,0,p->enc)
#define STR_NEW2(ptr) rb_enc_str_new((ptr),strlen(ptr),p->enc)
#define STR_NEW3(ptr,len,e,func) parser_str_new(p, (ptr),(len),(e),(func),p->enc)
#define TOK_INTERN() intern_cstr(tok(p), toklen(p), p->enc)
#define VALID_SYMNAME_P(s, l, enc, type) (rb_enc_symname_type(s, l, enc, (1U<<(type))) == (int)(type))
static inline bool
end_with_newline_p(struct parser_params *p, VALUE str)
{
return RSTRING_LEN(str) > 0 && RSTRING_END(str)[-1] == '\n';
}
static void
pop_pvtbl(struct parser_params *p, st_table *tbl)
{
st_free_table(p->pvtbl);
p->pvtbl = tbl;
}
static void
pop_pktbl(struct parser_params *p, st_table *tbl)
{
if (p->pktbl) st_free_table(p->pktbl);
p->pktbl = tbl;
}
#ifndef RIPPER
static void flush_debug_buffer(struct parser_params *p, VALUE out, VALUE str);
static void
debug_end_expect_token_locations(struct parser_params *p, const char *name)
{
if(p->debug) {
VALUE mesg = rb_sprintf("%s: ", name);
rb_str_catf(mesg, " %"PRIsVALUE"\n", p->end_expect_token_locations);
flush_debug_buffer(p, p->debug_output, mesg);
}
}
static void
push_end_expect_token_locations(struct parser_params *p, const rb_code_position_t *pos)
{
if(NIL_P(p->end_expect_token_locations)) return;
rb_ary_push(p->end_expect_token_locations, rb_ary_new_from_args(2, INT2NUM(pos->lineno), INT2NUM(pos->column)));
debug_end_expect_token_locations(p, "push_end_expect_token_locations");
}
static void
pop_end_expect_token_locations(struct parser_params *p)
{
if(NIL_P(p->end_expect_token_locations)) return;
rb_ary_pop(p->end_expect_token_locations);
debug_end_expect_token_locations(p, "pop_end_expect_token_locations");
}
static VALUE
peek_end_expect_token_locations(struct parser_params *p)
{
if(NIL_P(p->end_expect_token_locations)) return Qnil;
return rb_ary_last(0, 0, p->end_expect_token_locations);
}
static ID
parser_token2id(struct parser_params *p, enum yytokentype tok)
{
switch ((int) tok) {
#define TOKEN2ID(tok) case tok: return rb_intern(#tok);
#define TOKEN2ID2(tok, name) case tok: return rb_intern(name);
TOKEN2ID2(' ', "words_sep")
TOKEN2ID2('!', "!")
TOKEN2ID2('%', "%");
TOKEN2ID2('&', "&");
TOKEN2ID2('*', "*");
TOKEN2ID2('+', "+");
TOKEN2ID2('-', "-");
TOKEN2ID2('/', "/");
TOKEN2ID2('<', "<");
TOKEN2ID2('=', "=");
TOKEN2ID2('>', ">");
TOKEN2ID2('?', "?");
TOKEN2ID2('^', "^");
TOKEN2ID2('|', "|");
TOKEN2ID2('~', "~");
TOKEN2ID2(':', ":");
TOKEN2ID2(',', ",");
TOKEN2ID2('.', ".");
TOKEN2ID2(';', ";");
TOKEN2ID2('`', "`");
TOKEN2ID2('\n', "nl");
TOKEN2ID2('{', "{");
TOKEN2ID2('}', "}");
TOKEN2ID2('[', "[");
TOKEN2ID2(']', "]");
TOKEN2ID2('(', "(");
TOKEN2ID2(')', ")");
TOKEN2ID2('\\', "backslash");
TOKEN2ID(keyword_class);
TOKEN2ID(keyword_module);
TOKEN2ID(keyword_def);
TOKEN2ID(keyword_undef);
TOKEN2ID(keyword_begin);
TOKEN2ID(keyword_rescue);
TOKEN2ID(keyword_ensure);
TOKEN2ID(keyword_end);
TOKEN2ID(keyword_if);
TOKEN2ID(keyword_unless);
TOKEN2ID(keyword_then);
TOKEN2ID(keyword_elsif);
TOKEN2ID(keyword_else);
TOKEN2ID(keyword_case);
TOKEN2ID(keyword_when);
TOKEN2ID(keyword_while);
TOKEN2ID(keyword_until);
TOKEN2ID(keyword_for);
TOKEN2ID(keyword_break);
TOKEN2ID(keyword_next);
TOKEN2ID(keyword_redo);
TOKEN2ID(keyword_retry);
TOKEN2ID(keyword_in);
TOKEN2ID(keyword_do);
TOKEN2ID(keyword_do_cond);
TOKEN2ID(keyword_do_block);
TOKEN2ID(keyword_do_LAMBDA);
TOKEN2ID(keyword_return);
TOKEN2ID(keyword_yield);
TOKEN2ID(keyword_super);
TOKEN2ID(keyword_self);
TOKEN2ID(keyword_nil);
TOKEN2ID(keyword_true);
TOKEN2ID(keyword_false);
TOKEN2ID(keyword_and);
TOKEN2ID(keyword_or);
TOKEN2ID(keyword_not);
TOKEN2ID(modifier_if);
TOKEN2ID(modifier_unless);
TOKEN2ID(modifier_while);
TOKEN2ID(modifier_until);
TOKEN2ID(modifier_rescue);
TOKEN2ID(keyword_alias);
TOKEN2ID(keyword_defined);
TOKEN2ID(keyword_BEGIN);
TOKEN2ID(keyword_END);
TOKEN2ID(keyword__LINE__);
TOKEN2ID(keyword__FILE__);
TOKEN2ID(keyword__ENCODING__);
TOKEN2ID(tIDENTIFIER);
TOKEN2ID(tFID);
TOKEN2ID(tGVAR);
TOKEN2ID(tIVAR);
TOKEN2ID(tCONSTANT);
TOKEN2ID(tCVAR);
TOKEN2ID(tLABEL);
TOKEN2ID(tINTEGER);
TOKEN2ID(tFLOAT);
TOKEN2ID(tRATIONAL);
TOKEN2ID(tIMAGINARY);
TOKEN2ID(tCHAR);
TOKEN2ID(tNTH_REF);
TOKEN2ID(tBACK_REF);
TOKEN2ID(tSTRING_CONTENT);
TOKEN2ID(tREGEXP_END);
TOKEN2ID(tDUMNY_END);
TOKEN2ID(tSP);
TOKEN2ID(tUPLUS);
TOKEN2ID(tUMINUS);
TOKEN2ID(tPOW);
TOKEN2ID(tCMP);
TOKEN2ID(tEQ);
TOKEN2ID(tEQQ);
TOKEN2ID(tNEQ);
TOKEN2ID(tGEQ);
TOKEN2ID(tLEQ);
TOKEN2ID(tANDOP);
TOKEN2ID(tOROP);
TOKEN2ID(tMATCH);
TOKEN2ID(tNMATCH);
TOKEN2ID(tDOT2);
TOKEN2ID(tDOT3);
TOKEN2ID(tBDOT2);
TOKEN2ID(tBDOT3);
TOKEN2ID(tAREF);
TOKEN2ID(tASET);
TOKEN2ID(tLSHFT);
TOKEN2ID(tRSHFT);
TOKEN2ID(tANDDOT);
TOKEN2ID(tCOLON2);
TOKEN2ID(tCOLON3);
TOKEN2ID(tOP_ASGN);
TOKEN2ID(tASSOC);
TOKEN2ID(tLPAREN);
TOKEN2ID(tLPAREN_ARG);
TOKEN2ID(tRPAREN);
TOKEN2ID(tLBRACK);
TOKEN2ID(tLBRACE);
TOKEN2ID(tLBRACE_ARG);
TOKEN2ID(tSTAR);
TOKEN2ID(tDSTAR);
TOKEN2ID(tAMPER);
TOKEN2ID(tLAMBDA);
TOKEN2ID(tSYMBEG);
TOKEN2ID(tSTRING_BEG);
TOKEN2ID(tXSTRING_BEG);
TOKEN2ID(tREGEXP_BEG);
TOKEN2ID(tWORDS_BEG);
TOKEN2ID(tQWORDS_BEG);
TOKEN2ID(tSYMBOLS_BEG);
TOKEN2ID(tQSYMBOLS_BEG);
TOKEN2ID(tSTRING_END);
TOKEN2ID(tSTRING_DEND);
TOKEN2ID(tSTRING_DBEG);
TOKEN2ID(tSTRING_DVAR);
TOKEN2ID(tLAMBEG);
TOKEN2ID(tLABEL_END);
TOKEN2ID(tIGNORED_NL);
TOKEN2ID(tCOMMENT);
TOKEN2ID(tEMBDOC_BEG);
TOKEN2ID(tEMBDOC);
TOKEN2ID(tEMBDOC_END);
TOKEN2ID(tHEREDOC_BEG);
TOKEN2ID(tHEREDOC_END);
TOKEN2ID(k__END__);
TOKEN2ID(tLOWEST);
TOKEN2ID(tUMINUS_NUM);
TOKEN2ID(tLAST_TOKEN);
#undef TOKEN2ID
#undef TOKEN2ID2
}
rb_bug("parser_token2id: unknown token %d", tok);
UNREACHABLE_RETURN(0);
}
#endif
RBIMPL_ATTR_NONNULL((1, 2, 3))
static int parser_yyerror(struct parser_params*, const YYLTYPE *yylloc, const char*);
RBIMPL_ATTR_NONNULL((1, 2))
static int parser_yyerror0(struct parser_params*, const char*);
#define yyerror0(msg) parser_yyerror0(p, (msg))
#define yyerror1(loc, msg) parser_yyerror(p, (loc), (msg))
#define yyerror(yylloc, p, msg) parser_yyerror(p, yylloc, msg)
#define token_flush(ptr) ((ptr)->lex.ptok = (ptr)->lex.pcur)
#define lex_goto_eol(p) ((p)->lex.pcur = (p)->lex.pend)
#define lex_eol_p(p) lex_eol_n_p(p, 0)
#define lex_eol_n_p(p,n) lex_eol_ptr_n_p(p, (p)->lex.pcur, n)
#define lex_eol_ptr_p(p,ptr) lex_eol_ptr_n_p(p,ptr,0)
#define lex_eol_ptr_n_p(p,ptr,n) ((ptr)+(n) >= (p)->lex.pend)
static void token_info_setup(token_info *ptinfo, const char *ptr, const rb_code_location_t *loc);
static void token_info_push(struct parser_params*, const char *token, const rb_code_location_t *loc);
static void token_info_pop(struct parser_params*, const char *token, const rb_code_location_t *loc);
static void token_info_warn(struct parser_params *p, const char *token, token_info *ptinfo_beg, int same, const rb_code_location_t *loc);
static void token_info_drop(struct parser_params *p, const char *token, rb_code_position_t beg_pos);
#ifdef RIPPER
#define compile_for_eval (0)
#else
#define compile_for_eval (p->parent_iseq != 0)
#endif
#define token_column ((int)(p->lex.ptok - p->lex.pbeg))
#define CALL_Q_P(q) ((q) == TOKEN2VAL(tANDDOT))
#define NEW_QCALL(q,r,m,a,loc) (CALL_Q_P(q) ? NEW_QCALL0(r,m,a,loc) : NEW_CALL(r,m,a,loc))
#define lambda_beginning_p() (p->lex.lpar_beg == p->lex.paren_nest)
static enum yytokentype yylex(YYSTYPE*, YYLTYPE*, struct parser_params*);
#ifndef RIPPER
static inline void
rb_discard_node(struct parser_params *p, NODE *n)
{
rb_ast_delete_node(p->ast, n);
}
#endif
#ifdef RIPPER
static inline VALUE
add_mark_object(struct parser_params *p, VALUE obj)
{
if (!SPECIAL_CONST_P(obj)
&& !RB_TYPE_P(obj, T_NODE) /* Ripper jumbles NODE objects and other objects... */
) {
rb_ast_add_mark_object(p->ast, obj);
}
return obj;
}
static rb_node_ripper_t *rb_node_ripper_new(struct parser_params *p, ID a, VALUE b, VALUE c, const YYLTYPE *loc);
static rb_node_ripper_values_t *rb_node_ripper_values_new(struct parser_params *p, VALUE a, VALUE b, VALUE c, const YYLTYPE *loc);
#define NEW_RIPPER(a,b,c,loc) (VALUE)rb_node_ripper_new(p,a,b,c,loc)
#define NEW_RIPPER_VALUES(a,b,c,loc) (VALUE)rb_node_ripper_values_new(p,a,b,c,loc)
#else
static rb_node_scope_t *rb_node_scope_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc);
static rb_node_scope_t *rb_node_scope_new2(struct parser_params *p, rb_ast_id_table_t *nd_tbl, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc);
static rb_node_block_t *rb_node_block_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc);
static rb_node_if_t *rb_node_if_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, NODE *nd_else, const YYLTYPE *loc);
static rb_node_unless_t *rb_node_unless_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, NODE *nd_else, const YYLTYPE *loc);
static rb_node_case_t *rb_node_case_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc);
static rb_node_case2_t *rb_node_case2_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_case3_t *rb_node_case3_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc);
static rb_node_when_t *rb_node_when_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc);
static rb_node_in_t *rb_node_in_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc);
static rb_node_while_t *rb_node_while_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, long nd_state, const YYLTYPE *loc);
static rb_node_until_t *rb_node_until_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, long nd_state, const YYLTYPE *loc);
static rb_node_iter_t *rb_node_iter_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc);
static rb_node_for_t *rb_node_for_new(struct parser_params *p, NODE *nd_iter, NODE *nd_body, const YYLTYPE *loc);
static rb_node_for_masgn_t *rb_node_for_masgn_new(struct parser_params *p, NODE *nd_var, const YYLTYPE *loc);
static rb_node_retry_t *rb_node_retry_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_begin_t *rb_node_begin_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_rescue_t *rb_node_rescue_new(struct parser_params *p, NODE *nd_head, NODE *nd_resq, NODE *nd_else, const YYLTYPE *loc);
static rb_node_resbody_t *rb_node_resbody_new(struct parser_params *p, NODE *nd_args, NODE *nd_body, NODE *nd_head, const YYLTYPE *loc);
static rb_node_ensure_t *rb_node_ensure_new(struct parser_params *p, NODE *nd_head, NODE *nd_ensr, const YYLTYPE *loc);
static rb_node_and_t *rb_node_and_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc);
static rb_node_or_t *rb_node_or_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc);
static rb_node_masgn_t *rb_node_masgn_new(struct parser_params *p, NODE *nd_head, NODE *nd_args, const YYLTYPE *loc);
static rb_node_lasgn_t *rb_node_lasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc);
static rb_node_dasgn_t *rb_node_dasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc);
static rb_node_gasgn_t *rb_node_gasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc);
static rb_node_iasgn_t *rb_node_iasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc);
static rb_node_cdecl_t *rb_node_cdecl_new(struct parser_params *p, ID nd_vid, NODE *nd_value, NODE *nd_else, const YYLTYPE *loc);
static rb_node_cvasgn_t *rb_node_cvasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc);
static rb_node_op_asgn1_t *rb_node_op_asgn1_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *index, NODE *rvalue, const YYLTYPE *loc);
static rb_node_op_asgn2_t *rb_node_op_asgn2_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, ID nd_vid, ID nd_mid, bool nd_aid, const YYLTYPE *loc);
static rb_node_op_asgn_or_t *rb_node_op_asgn_or_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, const YYLTYPE *loc);
static rb_node_op_asgn_and_t *rb_node_op_asgn_and_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, const YYLTYPE *loc);
static rb_node_op_cdecl_t *rb_node_op_cdecl_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, ID nd_aid, const YYLTYPE *loc);
static rb_node_call_t *rb_node_call_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc);
static rb_node_opcall_t *rb_node_opcall_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc);
static rb_node_fcall_t *rb_node_fcall_new(struct parser_params *p, ID nd_mid, NODE *nd_args, const YYLTYPE *loc);
static rb_node_vcall_t *rb_node_vcall_new(struct parser_params *p, ID nd_mid, const YYLTYPE *loc);
static rb_node_qcall_t *rb_node_qcall_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc);
static rb_node_super_t *rb_node_super_new(struct parser_params *p, NODE *nd_args, const YYLTYPE *loc);
static rb_node_zsuper_t * rb_node_zsuper_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_list_t *rb_node_list_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc);
static rb_node_list_t *rb_node_list_new2(struct parser_params *p, NODE *nd_head, long nd_alen, NODE *nd_next, const YYLTYPE *loc);
static rb_node_zlist_t *rb_node_zlist_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_hash_t *rb_node_hash_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc);
static rb_node_return_t *rb_node_return_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc);
static rb_node_yield_t *rb_node_yield_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc);
static rb_node_lvar_t *rb_node_lvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc);
static rb_node_dvar_t *rb_node_dvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc);
static rb_node_gvar_t *rb_node_gvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc);
static rb_node_ivar_t *rb_node_ivar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc);
static rb_node_const_t *rb_node_const_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc);
static rb_node_cvar_t *rb_node_cvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc);
static rb_node_nth_ref_t *rb_node_nth_ref_new(struct parser_params *p, long nd_nth, const YYLTYPE *loc);
static rb_node_back_ref_t *rb_node_back_ref_new(struct parser_params *p, long nd_nth, const YYLTYPE *loc);
static rb_node_match2_t *rb_node_match2_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, const YYLTYPE *loc);
static rb_node_match3_t *rb_node_match3_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, const YYLTYPE *loc);
static rb_node_lit_t *rb_node_lit_new(struct parser_params *p, VALUE nd_lit, const YYLTYPE *loc);
static rb_node_str_t *rb_node_str_new(struct parser_params *p, VALUE nd_lit, const YYLTYPE *loc);
static rb_node_dstr_t *rb_node_dstr_new0(struct parser_params *p, VALUE nd_lit, long nd_alen, NODE *nd_next, const YYLTYPE *loc);
static rb_node_dstr_t *rb_node_dstr_new(struct parser_params *p, VALUE nd_lit, const YYLTYPE *loc);
static rb_node_xstr_t *rb_node_xstr_new(struct parser_params *p, VALUE nd_lit, const YYLTYPE *loc);
static rb_node_dxstr_t *rb_node_dxstr_new(struct parser_params *p, VALUE nd_lit, long nd_alen, NODE *nd_next, const YYLTYPE *loc);
static rb_node_evstr_t *rb_node_evstr_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_once_t *rb_node_once_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_args_t *rb_node_args_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_args_aux_t *rb_node_args_aux_new(struct parser_params *p, ID nd_pid, long nd_plen, const YYLTYPE *loc);
static rb_node_opt_arg_t *rb_node_opt_arg_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_kw_arg_t *rb_node_kw_arg_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_postarg_t *rb_node_postarg_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc);
static rb_node_argscat_t *rb_node_argscat_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc);
static rb_node_argspush_t *rb_node_argspush_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc);
static rb_node_splat_t *rb_node_splat_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc);
static rb_node_block_pass_t *rb_node_block_pass_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_defn_t *rb_node_defn_new(struct parser_params *p, ID nd_mid, NODE *nd_defn, const YYLTYPE *loc);
static rb_node_defs_t *rb_node_defs_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_defn, const YYLTYPE *loc);
static rb_node_alias_t *rb_node_alias_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc);
static rb_node_valias_t *rb_node_valias_new(struct parser_params *p, ID nd_alias, ID nd_orig, const YYLTYPE *loc);
static rb_node_undef_t *rb_node_undef_new(struct parser_params *p, NODE *nd_undef, const YYLTYPE *loc);
static rb_node_class_t *rb_node_class_new(struct parser_params *p, NODE *nd_cpath, NODE *nd_body, NODE *nd_super, const YYLTYPE *loc);
static rb_node_module_t *rb_node_module_new(struct parser_params *p, NODE *nd_cpath, NODE *nd_body, const YYLTYPE *loc);
static rb_node_sclass_t *rb_node_sclass_new(struct parser_params *p, NODE *nd_recv, NODE *nd_body, const YYLTYPE *loc);
static rb_node_colon2_t *rb_node_colon2_new(struct parser_params *p, NODE *nd_head, ID nd_mid, const YYLTYPE *loc);
static rb_node_colon3_t *rb_node_colon3_new(struct parser_params *p, ID nd_mid, const YYLTYPE *loc);
static rb_node_dot2_t *rb_node_dot2_new(struct parser_params *p, NODE *nd_beg, NODE *nd_end, const YYLTYPE *loc);
static rb_node_dot3_t *rb_node_dot3_new(struct parser_params *p, NODE *nd_beg, NODE *nd_end, const YYLTYPE *loc);
static rb_node_self_t *rb_node_self_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_nil_t *rb_node_nil_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_true_t *rb_node_true_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_false_t *rb_node_false_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_errinfo_t *rb_node_errinfo_new(struct parser_params *p, const YYLTYPE *loc);
static rb_node_defined_t *rb_node_defined_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc);
static rb_node_postexe_t *rb_node_postexe_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc);
static rb_node_dsym_t *rb_node_dsym_new(struct parser_params *p, VALUE nd_lit, long nd_alen, NODE *nd_next, const YYLTYPE *loc);
static rb_node_attrasgn_t *rb_node_attrasgn_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc);
static rb_node_lambda_t *rb_node_lambda_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc);
static rb_node_aryptn_t *rb_node_aryptn_new(struct parser_params *p, NODE *pre_args, NODE *rest_arg, NODE *post_args, const YYLTYPE *loc);
static rb_node_hshptn_t *rb_node_hshptn_new(struct parser_params *p, NODE *nd_pconst, NODE *nd_pkwargs, NODE *nd_pkwrestarg, const YYLTYPE *loc);
static rb_node_fndptn_t *rb_node_fndptn_new(struct parser_params *p, NODE *pre_rest_arg, NODE *args, NODE *post_rest_arg, const YYLTYPE *loc);
static rb_node_error_t *rb_node_error_new(struct parser_params *p, const YYLTYPE *loc);
#define NEW_SCOPE(a,b,loc) (NODE *)rb_node_scope_new(p,a,b,loc)
#define NEW_SCOPE2(t,a,b,loc) (NODE *)rb_node_scope_new2(p,t,a,b,loc)
#define NEW_BLOCK(a,loc) (NODE *)rb_node_block_new(p,a,loc)
#define NEW_IF(c,t,e,loc) (NODE *)rb_node_if_new(p,c,t,e,loc)
#define NEW_UNLESS(c,t,e,loc) (NODE *)rb_node_unless_new(p,c,t,e,loc)
#define NEW_CASE(h,b,loc) (NODE *)rb_node_case_new(p,h,b,loc)
#define NEW_CASE2(b,loc) (NODE *)rb_node_case2_new(p,b,loc)
#define NEW_CASE3(h,b,loc) (NODE *)rb_node_case3_new(p,h,b,loc)
#define NEW_WHEN(c,t,e,loc) (NODE *)rb_node_when_new(p,c,t,e,loc)
#define NEW_IN(c,t,e,loc) (NODE *)rb_node_in_new(p,c,t,e,loc)
#define NEW_WHILE(c,b,n,loc) (NODE *)rb_node_while_new(p,c,b,n,loc)
#define NEW_UNTIL(c,b,n,loc) (NODE *)rb_node_until_new(p,c,b,n,loc)
#define NEW_ITER(a,b,loc) (NODE *)rb_node_iter_new(p,a,b,loc)
#define NEW_FOR(i,b,loc) (NODE *)rb_node_for_new(p,i,b,loc)
#define NEW_FOR_MASGN(v,loc) (NODE *)rb_node_for_masgn_new(p,v,loc)
#define NEW_RETRY(loc) (NODE *)rb_node_retry_new(p,loc)
#define NEW_BEGIN(b,loc) (NODE *)rb_node_begin_new(p,b,loc)
#define NEW_RESCUE(b,res,e,loc) (NODE *)rb_node_rescue_new(p,b,res,e,loc)
#define NEW_RESBODY(a,ex,n,loc) (NODE *)rb_node_resbody_new(p,a,ex,n,loc)
#define NEW_ENSURE(b,en,loc) (NODE *)rb_node_ensure_new(p,b,en,loc)
#define NEW_AND(f,s,loc) (NODE *)rb_node_and_new(p,f,s,loc)
#define NEW_OR(f,s,loc) (NODE *)rb_node_or_new(p,f,s,loc)
#define NEW_MASGN(l,r,loc) rb_node_masgn_new(p,l,r,loc)
#define NEW_LASGN(v,val,loc) (NODE *)rb_node_lasgn_new(p,v,val,loc)
#define NEW_DASGN(v,val,loc) (NODE *)rb_node_dasgn_new(p,v,val,loc)
#define NEW_GASGN(v,val,loc) (NODE *)rb_node_gasgn_new(p,v,val,loc)
#define NEW_IASGN(v,val,loc) (NODE *)rb_node_iasgn_new(p,v,val,loc)
#define NEW_CDECL(v,val,path,loc) (NODE *)rb_node_cdecl_new(p,v,val,path,loc)
#define NEW_CVASGN(v,val,loc) (NODE *)rb_node_cvasgn_new(p,v,val,loc)
#define NEW_OP_ASGN1(r,id,idx,rval,loc) (NODE *)rb_node_op_asgn1_new(p,r,id,idx,rval,loc)
#define NEW_OP_ASGN2(r,t,i,o,val,loc) (NODE *)rb_node_op_asgn2_new(p,r,val,i,o,t,loc)
#define NEW_OP_ASGN_OR(i,val,loc) (NODE *)rb_node_op_asgn_or_new(p,i,val,loc)
#define NEW_OP_ASGN_AND(i,val,loc) (NODE *)rb_node_op_asgn_and_new(p,i,val,loc)
#define NEW_OP_CDECL(v,op,val,loc) (NODE *)rb_node_op_cdecl_new(p,v,val,op,loc)
#define NEW_CALL(r,m,a,loc) (NODE *)rb_node_call_new(p,r,m,a,loc)
#define NEW_OPCALL(r,m,a,loc) (NODE *)rb_node_opcall_new(p,r,m,a,loc)
#define NEW_FCALL(m,a,loc) rb_node_fcall_new(p,m,a,loc)
#define NEW_VCALL(m,loc) (NODE *)rb_node_vcall_new(p,m,loc)
#define NEW_QCALL0(r,m,a,loc) (NODE *)rb_node_qcall_new(p,r,m,a,loc)
#define NEW_SUPER(a,loc) (NODE *)rb_node_super_new(p,a,loc)
#define NEW_ZSUPER(loc) (NODE *)rb_node_zsuper_new(p,loc)
#define NEW_LIST(a,loc) (NODE *)rb_node_list_new(p,a,loc)
#define NEW_LIST2(h,l,n,loc) (NODE *)rb_node_list_new2(p,h,l,n,loc)