mbed-mruby

Diff: include/mruby/compile.h

Revision:

0:158c61bb030f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/mruby/compile.h	Wed Mar 25 17:36:16 2015 +0000
@@ -0,0 +1,191 @@
+/*
+** mruby/compile.h - mruby parser
+**
+** See Copyright Notice in mruby.h
+*/
+
+#ifndef MRUBY_COMPILE_H
+#define MRUBY_COMPILE_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include "mruby.h"
+
+struct mrb_jmpbuf;
+
+struct mrb_parser_state;
+/* load context */
+typedef struct mrbc_context {
+  mrb_sym *syms;
+  int slen;
+  char *filename;
+  short lineno;
+  int (*partial_hook)(struct mrb_parser_state*);
+  void *partial_data;
+  struct RClass *target_class;
+  mrb_bool capture_errors:1;
+  mrb_bool dump_result:1;
+  mrb_bool no_exec:1;
+  mrb_bool keep_lv:1;
+  mrb_bool no_optimize:1;
+} mrbc_context;
+
+MRB_API mrbc_context* mrbc_context_new(mrb_state *mrb);
+MRB_API void mrbc_context_free(mrb_state *mrb, mrbc_context *cxt);
+MRB_API const char *mrbc_filename(mrb_state *mrb, mrbc_context *c, const char *s);
+MRB_API void mrbc_partial_hook(mrb_state *mrb, mrbc_context *c, int (*partial_hook)(struct mrb_parser_state*), void*data);
+
+MRB_API mrb_value mrb_toplevel_run_keep(mrb_state*, struct RProc*, unsigned int);
+
+/* AST node structure */
+typedef struct mrb_ast_node {
+  struct mrb_ast_node *car, *cdr;
+  uint16_t lineno, filename_index;
+} mrb_ast_node;
+
+/* lexer states */
+enum mrb_lex_state_enum {
+  EXPR_BEG,                   /* ignore newline, +/- is a sign. */
+  EXPR_END,                   /* newline significant, +/- is an operator. */
+  EXPR_ENDARG,                /* ditto, and unbound braces. */
+  EXPR_ENDFN,                 /* ditto, and unbound braces. */
+  EXPR_ARG,                   /* newline significant, +/- is an operator. */
+  EXPR_CMDARG,                /* newline significant, +/- is an operator. */
+  EXPR_MID,                   /* newline significant, +/- is an operator. */
+  EXPR_FNAME,                 /* ignore newline, no reserved words. */
+  EXPR_DOT,                   /* right after `.' or `::', no reserved words. */
+  EXPR_CLASS,                 /* immediate after `class', no here document. */
+  EXPR_VALUE,                 /* alike EXPR_BEG but label is disallowed. */
+  EXPR_MAX_STATE
+};
+
+/* saved error message */
+struct mrb_parser_message {
+  int lineno;
+  int column;
+  char* message;
+};
+
+#define STR_FUNC_PARSING 0x01
+#define STR_FUNC_EXPAND  0x02
+#define STR_FUNC_REGEXP  0x04
+#define STR_FUNC_WORD    0x08
+#define STR_FUNC_SYMBOL  0x10
+#define STR_FUNC_ARRAY   0x20
+#define STR_FUNC_HEREDOC 0x40
+#define STR_FUNC_XQUOTE  0x80
+
+enum mrb_string_type {
+  str_not_parsing  = (0),
+  str_squote   = (STR_FUNC_PARSING),
+  str_dquote   = (STR_FUNC_PARSING|STR_FUNC_EXPAND),
+  str_regexp   = (STR_FUNC_PARSING|STR_FUNC_REGEXP|STR_FUNC_EXPAND),
+  str_sword    = (STR_FUNC_PARSING|STR_FUNC_WORD|STR_FUNC_ARRAY),
+  str_dword    = (STR_FUNC_PARSING|STR_FUNC_WORD|STR_FUNC_ARRAY|STR_FUNC_EXPAND),
+  str_ssym     = (STR_FUNC_PARSING|STR_FUNC_SYMBOL),
+  str_ssymbols = (STR_FUNC_PARSING|STR_FUNC_SYMBOL|STR_FUNC_ARRAY),
+  str_dsymbols = (STR_FUNC_PARSING|STR_FUNC_SYMBOL|STR_FUNC_ARRAY|STR_FUNC_EXPAND),
+  str_heredoc  = (STR_FUNC_PARSING|STR_FUNC_HEREDOC),
+  str_xquote   = (STR_FUNC_PARSING|STR_FUNC_XQUOTE|STR_FUNC_EXPAND),
+};
+
+/* heredoc structure */
+struct mrb_parser_heredoc_info {
+  mrb_bool allow_indent:1;
+  mrb_bool line_head:1;
+  enum mrb_string_type type;
+  const char *term;
+  int term_len;
+  mrb_ast_node *doc;
+};
+
+#define MRB_PARSER_BUF_SIZE 1024
+
+/* parser structure */
+struct mrb_parser_state {
+  mrb_state *mrb;
+  struct mrb_pool *pool;
+  mrb_ast_node *cells;
+  const char *s, *send;
+#ifdef ENABLE_STDIO
+  FILE *f;
+#endif
+  mrbc_context *cxt;
+  char const *filename;
+  int lineno;
+  int column;
+
+  enum mrb_lex_state_enum lstate;
+  mrb_ast_node *lex_strterm; /* (type nest_level beg . end) */
+
+  unsigned int cond_stack;
+  unsigned int cmdarg_stack;
+  int paren_nest;
+  int lpar_beg;
+  int in_def, in_single;
+  mrb_bool cmd_start:1;
+  mrb_ast_node *locals;
+
+  mrb_ast_node *pb;
+  char buf[MRB_PARSER_BUF_SIZE];
+  int bidx;
+
+  mrb_ast_node *all_heredocs;	/* list of mrb_parser_heredoc_info* */
+  mrb_ast_node *heredocs_from_nextline;
+  mrb_ast_node *parsing_heredoc;
+  mrb_ast_node *lex_strterm_before_heredoc;
+  mrb_bool heredoc_end_now:1; /* for mirb */
+
+  void *ylval;
+
+  size_t nerr;
+  size_t nwarn;
+  mrb_ast_node *tree;
+
+  mrb_bool no_optimize:1;
+  mrb_bool capture_errors:1;
+  struct mrb_parser_message error_buffer[10];
+  struct mrb_parser_message warn_buffer[10];
+
+  mrb_sym* filename_table;
+  size_t filename_table_length;
+  int current_filename_index;
+
+  struct mrb_jmpbuf* jmp;
+};
+
+MRB_API struct mrb_parser_state* mrb_parser_new(mrb_state*);
+MRB_API void mrb_parser_free(struct mrb_parser_state*);
+MRB_API void mrb_parser_parse(struct mrb_parser_state*,mrbc_context*);
+
+MRB_API void mrb_parser_set_filename(struct mrb_parser_state*, char const*);
+MRB_API char const* mrb_parser_get_filename(struct mrb_parser_state*, uint16_t idx);
+
+/* utility functions */
+#ifdef ENABLE_STDIO
+MRB_API struct mrb_parser_state* mrb_parse_file(mrb_state*,FILE*,mrbc_context*);
+#endif
+MRB_API struct mrb_parser_state* mrb_parse_string(mrb_state*,const char*,mrbc_context*);
+MRB_API struct mrb_parser_state* mrb_parse_nstring(mrb_state*,const char*,int,mrbc_context*);
+MRB_API struct RProc* mrb_generate_code(mrb_state*, struct mrb_parser_state*);
+
+/* program load functions */
+#ifdef ENABLE_STDIO
+MRB_API mrb_value mrb_load_file(mrb_state*,FILE*);
+#endif
+MRB_API mrb_value mrb_load_string(mrb_state *mrb, const char *s);
+MRB_API mrb_value mrb_load_nstring(mrb_state *mrb, const char *s, int len);
+#ifdef ENABLE_STDIO
+MRB_API mrb_value mrb_load_file_cxt(mrb_state*,FILE*, mrbc_context *cxt);
+#endif
+MRB_API mrb_value mrb_load_string_cxt(mrb_state *mrb, const char *s, mrbc_context *cxt);
+MRB_API mrb_value mrb_load_nstring_cxt(mrb_state *mrb, const char *s, int len, mrbc_context *cxt);
+
+#if defined(__cplusplus)
+}  /* extern "C" { */
+#endif
+
+#endif /* MRUBY_COMPILE_H */
+