Class: TreeSitter::Language

Inherits:
Object
  • Object
show all
Defined in:
ext/tree_sitter/language.c

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.load(name, path) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 67

static VALUE language_load(VALUE self, VALUE name, VALUE path) {
  VALUE path_s = rb_funcall(path, rb_intern("to_s"), 0);
  char *path_cstr = StringValueCStr(path_s);
  void *lib = dlopen(path_cstr, RTLD_NOW);
  const char *err = dlerror();
  if (err != NULL) {
    rb_raise(rb_eRuntimeError,
             "Could not load shared library `%s'.\nReason: %s", path_cstr, err);
  }

  char buf[256];
  snprintf(buf, sizeof(buf), "tree_sitter_%s", StringValueCStr(name));
  tree_sitter_lang *make_ts_language = dlsym(lib, buf);
  err = dlerror();
  if (err != NULL) {
    dlclose(lib);
    rb_raise(rb_eRuntimeError,
             "Could not load symbol `%s' from library `%s'.\nReason:%s",
             StringValueCStr(name), StringValueCStr(path), err);
  }

  TSLanguage *lang = make_ts_language();
  if (lang == NULL) {
    dlclose(lib);
    rb_raise(rb_eRuntimeError,
             "TSLanguage = NULL for language `%s' in library `%s'.\nCall your "
             "local TSLanguage supplier.",
             StringValueCStr(name), StringValueCStr(path));
  }

  uint32_t version = ts_language_version(lang);
  if (version < TREE_SITTER_MIN_COMPATIBLE_LANGUAGE_VERSION) {
    rb_raise(rb_eRuntimeError,
             "Language %s (v%d) from `%s' is old.\nMinimum supported ABI: "
             "v%d.\nCurrent ABI: v%d.",
             StringValueCStr(name), version, StringValueCStr(path),
             TREE_SITTER_MIN_COMPATIBLE_LANGUAGE_VERSION,
             TREE_SITTER_LANGUAGE_VERSION);
  }

  return new_language(lang);
}

Instance Method Details

#==(other) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 110

static VALUE language_equal(VALUE self, VALUE other) {
  TSLanguage *this = SELF;
  TSLanguage *that = unwrap(other)->data;
  return this == that ? Qtrue : Qfalse;
}

#field_count ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 44

static VALUE language_field_count(VALUE self) {
  return UINT2NUM(ts_language_field_count(SELF));
}

#field_id_for_name(name) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 52

static VALUE language_field_id_for_name(VALUE self, VALUE name) {
  TSLanguage *language = SELF;
  const char *str = StringValuePtr(name);
  uint32_t length = (uint32_t)RSTRING_LEN(name);
  return UINT2NUM(ts_language_field_id_for_name(language, str, length));
}

#field_name_for_id(field_id) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 48

static VALUE language_field_name_for_id(VALUE self, VALUE field_id) {
  return safe_str(ts_language_field_name_for_id(SELF, NUM2UINT(field_id)));
}

#symbol_count ⇒ Object

Class methods



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# File 'ext/tree_sitter/language.c', line 28

static VALUE language_symbol_count(VALUE self) {
  return UINT2NUM(ts_language_symbol_count(SELF));
}

#symbol_for_name(string, is_named) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 36

static VALUE language_symbol_for_name(VALUE self, VALUE string,
                                      VALUE is_named) {
  const char *str = rb_id2name(SYM2ID(string));
  uint32_t length = (uint32_t)strlen(str);
  bool named = RTEST(is_named);
  return UINT2NUM(ts_language_symbol_for_name(SELF, str, length, named));
}

#symbol_name(symbol) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 32

static VALUE language_symbol_name(VALUE self, VALUE symbol) {
  return safe_str(ts_language_symbol_name(SELF, NUM2UINT(symbol)));
}

#symbol_type(symbol) ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 59

static VALUE language_symbol_type(VALUE self, VALUE symbol) {
  return new_symbol_type(ts_language_symbol_type(SELF, NUM2UINT(symbol)));
}

#version ⇒ Object 



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# File 'ext/tree_sitter/language.c', line 63

static VALUE language_version(VALUE self) {
  return UINT2NUM(ts_language_version(SELF));
}