[270] | 1 | /*
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| 2 | ** mruby/compile.h - mruby parser
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| 3 | **
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| 4 | ** See Copyright Notice in mruby.h
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| 5 | */
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| 6 |
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| 7 | #ifndef MRUBY_COMPILE_H
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| 8 | #define MRUBY_COMPILE_H
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| 9 |
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| 10 | #include "mruby/common.h"
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| 11 |
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| 12 | /**
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| 13 | * MRuby Compiler
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| 14 | */
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| 15 | MRB_BEGIN_DECL
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| 16 |
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| 17 | #include "mruby.h"
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| 18 |
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| 19 | struct mrb_jmpbuf;
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| 20 |
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| 21 | struct mrb_parser_state;
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| 22 | /* load context */
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| 23 | typedef struct mrbc_context {
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| 24 | mrb_sym *syms;
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| 25 | int slen;
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| 26 | char *filename;
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| 27 | short lineno;
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| 28 | int (*partial_hook)(struct mrb_parser_state*);
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| 29 | void *partial_data;
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| 30 | struct RClass *target_class;
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| 31 | mrb_bool capture_errors:1;
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| 32 | mrb_bool dump_result:1;
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| 33 | mrb_bool no_exec:1;
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| 34 | mrb_bool keep_lv:1;
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| 35 | mrb_bool no_optimize:1;
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| 36 | } mrbc_context;
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| 37 |
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| 38 | MRB_API mrbc_context* mrbc_context_new(mrb_state *mrb);
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| 39 | MRB_API void mrbc_context_free(mrb_state *mrb, mrbc_context *cxt);
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| 40 | MRB_API const char *mrbc_filename(mrb_state *mrb, mrbc_context *c, const char *s);
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| 41 | MRB_API void mrbc_partial_hook(mrb_state *mrb, mrbc_context *c, int (*partial_hook)(struct mrb_parser_state*), void*data);
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| 42 |
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| 43 | MRB_API mrb_value mrb_toplevel_run_keep(mrb_state*, struct RProc*, unsigned int);
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| 44 |
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| 45 | /* AST node structure */
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| 46 | typedef struct mrb_ast_node {
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| 47 | struct mrb_ast_node *car, *cdr;
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| 48 | uint16_t lineno, filename_index;
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| 49 | } mrb_ast_node;
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| 50 |
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| 51 | /* lexer states */
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| 52 | enum mrb_lex_state_enum {
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| 53 | EXPR_BEG, /* ignore newline, +/- is a sign. */
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| 54 | EXPR_END, /* newline significant, +/- is an operator. */
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| 55 | EXPR_ENDARG, /* ditto, and unbound braces. */
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| 56 | EXPR_ENDFN, /* ditto, and unbound braces. */
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| 57 | EXPR_ARG, /* newline significant, +/- is an operator. */
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| 58 | EXPR_CMDARG, /* newline significant, +/- is an operator. */
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| 59 | EXPR_MID, /* newline significant, +/- is an operator. */
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| 60 | EXPR_FNAME, /* ignore newline, no reserved words. */
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| 61 | EXPR_DOT, /* right after '.' or '::', no reserved words. */
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| 62 | EXPR_CLASS, /* immediate after 'class', no here document. */
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| 63 | EXPR_VALUE, /* alike EXPR_BEG but label is disallowed. */
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| 64 | EXPR_MAX_STATE
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| 65 | };
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| 66 |
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| 67 | /* saved error message */
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| 68 | struct mrb_parser_message {
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| 69 | int lineno;
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| 70 | int column;
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| 71 | char* message;
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| 72 | };
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| 73 |
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| 74 | #define STR_FUNC_PARSING 0x01
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| 75 | #define STR_FUNC_EXPAND 0x02
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| 76 | #define STR_FUNC_REGEXP 0x04
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| 77 | #define STR_FUNC_WORD 0x08
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| 78 | #define STR_FUNC_SYMBOL 0x10
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| 79 | #define STR_FUNC_ARRAY 0x20
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| 80 | #define STR_FUNC_HEREDOC 0x40
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| 81 | #define STR_FUNC_XQUOTE 0x80
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| 82 |
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| 83 | enum mrb_string_type {
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| 84 | str_not_parsing = (0),
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| 85 | str_squote = (STR_FUNC_PARSING),
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| 86 | str_dquote = (STR_FUNC_PARSING|STR_FUNC_EXPAND),
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| 87 | str_regexp = (STR_FUNC_PARSING|STR_FUNC_REGEXP|STR_FUNC_EXPAND),
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| 88 | str_sword = (STR_FUNC_PARSING|STR_FUNC_WORD|STR_FUNC_ARRAY),
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| 89 | str_dword = (STR_FUNC_PARSING|STR_FUNC_WORD|STR_FUNC_ARRAY|STR_FUNC_EXPAND),
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| 90 | str_ssym = (STR_FUNC_PARSING|STR_FUNC_SYMBOL),
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| 91 | str_ssymbols = (STR_FUNC_PARSING|STR_FUNC_SYMBOL|STR_FUNC_ARRAY),
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| 92 | str_dsymbols = (STR_FUNC_PARSING|STR_FUNC_SYMBOL|STR_FUNC_ARRAY|STR_FUNC_EXPAND),
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| 93 | str_heredoc = (STR_FUNC_PARSING|STR_FUNC_HEREDOC),
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| 94 | str_xquote = (STR_FUNC_PARSING|STR_FUNC_XQUOTE|STR_FUNC_EXPAND),
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| 95 | };
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| 96 |
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| 97 | /* heredoc structure */
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| 98 | struct mrb_parser_heredoc_info {
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| 99 | mrb_bool allow_indent:1;
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| 100 | mrb_bool line_head:1;
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| 101 | enum mrb_string_type type;
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| 102 | const char *term;
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| 103 | int term_len;
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| 104 | mrb_ast_node *doc;
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| 105 | };
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| 106 |
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| 107 | #define MRB_PARSER_BUF_SIZE 1024
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| 108 |
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| 109 | /* parser structure */
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| 110 | struct mrb_parser_state {
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| 111 | mrb_state *mrb;
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| 112 | struct mrb_pool *pool;
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| 113 | mrb_ast_node *cells;
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| 114 | const char *s, *send;
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| 115 | #ifndef MRB_DISABLE_STDIO
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| 116 | FILE *f;
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| 117 | #endif
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| 118 | mrbc_context *cxt;
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| 119 | char const *filename;
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| 120 | int lineno;
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| 121 | int column;
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| 122 |
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| 123 | enum mrb_lex_state_enum lstate;
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| 124 | mrb_ast_node *lex_strterm; /* (type nest_level beg . end) */
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| 125 |
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| 126 | unsigned int cond_stack;
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| 127 | unsigned int cmdarg_stack;
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| 128 | int paren_nest;
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| 129 | int lpar_beg;
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| 130 | int in_def, in_single;
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| 131 | mrb_bool cmd_start:1;
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| 132 | mrb_ast_node *locals;
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| 133 |
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| 134 | mrb_ast_node *pb;
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| 135 | char buf[MRB_PARSER_BUF_SIZE];
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| 136 | int bidx;
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| 137 |
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| 138 | mrb_ast_node *all_heredocs; /* list of mrb_parser_heredoc_info* */
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| 139 | mrb_ast_node *heredocs_from_nextline;
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| 140 | mrb_ast_node *parsing_heredoc;
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| 141 | mrb_ast_node *lex_strterm_before_heredoc;
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| 142 | mrb_bool heredoc_end_now:1; /* for mirb */
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| 143 |
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| 144 | void *ylval;
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| 145 |
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| 146 | size_t nerr;
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| 147 | size_t nwarn;
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| 148 | mrb_ast_node *tree;
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| 149 |
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| 150 | mrb_bool no_optimize:1;
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| 151 | mrb_bool capture_errors:1;
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| 152 | struct mrb_parser_message error_buffer[10];
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| 153 | struct mrb_parser_message warn_buffer[10];
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| 154 |
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| 155 | mrb_sym* filename_table;
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| 156 | size_t filename_table_length;
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| 157 | int current_filename_index;
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| 158 |
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| 159 | struct mrb_jmpbuf* jmp;
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| 160 | };
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| 161 |
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| 162 | MRB_API struct mrb_parser_state* mrb_parser_new(mrb_state*);
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| 163 | MRB_API void mrb_parser_free(struct mrb_parser_state*);
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| 164 | MRB_API void mrb_parser_parse(struct mrb_parser_state*,mrbc_context*);
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| 165 |
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| 166 | MRB_API void mrb_parser_set_filename(struct mrb_parser_state*, char const*);
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| 167 | MRB_API char const* mrb_parser_get_filename(struct mrb_parser_state*, uint16_t idx);
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| 168 |
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| 169 | /* utility functions */
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| 170 | #ifndef MRB_DISABLE_STDIO
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| 171 | MRB_API struct mrb_parser_state* mrb_parse_file(mrb_state*,FILE*,mrbc_context*);
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| 172 | #endif
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| 173 | MRB_API struct mrb_parser_state* mrb_parse_string(mrb_state*,const char*,mrbc_context*);
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| 174 | MRB_API struct mrb_parser_state* mrb_parse_nstring(mrb_state*,const char*,int,mrbc_context*);
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| 175 | MRB_API struct RProc* mrb_generate_code(mrb_state*, struct mrb_parser_state*);
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| 176 |
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| 177 | /* program load functions */
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| 178 | #ifndef MRB_DISABLE_STDIO
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| 179 | MRB_API mrb_value mrb_load_file(mrb_state*,FILE*);
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| 180 | MRB_API mrb_value mrb_load_file_cxt(mrb_state*,FILE*, mrbc_context *cxt);
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| 181 | #endif
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| 182 | MRB_API mrb_value mrb_load_string(mrb_state *mrb, const char *s);
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| 183 | MRB_API mrb_value mrb_load_nstring(mrb_state *mrb, const char *s, int len);
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| 184 | MRB_API mrb_value mrb_load_string_cxt(mrb_state *mrb, const char *s, mrbc_context *cxt);
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| 185 | MRB_API mrb_value mrb_load_nstring_cxt(mrb_state *mrb, const char *s, int len, mrbc_context *cxt);
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| 186 |
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| 187 | /** @} */
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| 188 | MRB_END_DECL
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| 189 |
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| 190 | #endif /* MRUBY_COMPILE_H */
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