Struct parol::parser::parol_grammar::ParolGrammar

pub struct ParolGrammar {
    pub item_stack: Vec<ParolGrammarItem>,
    pub title: Option<String>,
    pub comment: Option<String>,
    pub start_symbol: String,
    pub scanner_configurations: Vec<ScannerConfig>,
    // some fields omitted
}

Data structure used to build up a parol::GrammarConfig during parsing.

Fields

item_stack: Vec<ParolGrammarItem>

title: Option<String>

comment: Option<String>

start_symbol: String

scanner_configurations: Vec<ScannerConfig>

Implementations

impl ParolGrammar

pub fn new() -> Self

Trait Implementations

impl Clone for ParolGrammar

fn clone(&self) -> ParolGrammar

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParolGrammar

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ParolGrammar

fn default() -> Self

Returns the “default value” for a type.

impl Display for ParolGrammar

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl ParolGrammarTrait for ParolGrammar

fn start_declaration_2(
    &mut self,
    _end_of_input_0: &ParseTreeStackEntry,
    _identifier_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 2:

StartDeclaration: “%start” Identifier;

fn declarations_4(&mut self, _parse_tree: &Tree<ParseTreeType>) -> Result<()>

Semantic action for production 4:

Declarations: ;

fn declaration_5(
    &mut self,
    _percent_title_0: &ParseTreeStackEntry,
    _string_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 5:

Declaration: “%title” String;

fn declaration_6(
    &mut self,
    _percent_comment_0: &ParseTreeStackEntry,
    _string_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 6:

Declaration: “%comment” String;

fn scanner_directives_8(
    &mut self,
    _percent_line_underscore_comment_0: &ParseTreeStackEntry,
    _string_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 8:

Declaration: “%line_comment” String;

fn scanner_directives_9(
    &mut self,
    _percent_block_underscore_comment_0: &ParseTreeStackEntry,
    _string_1: &ParseTreeStackEntry,
    _string_2: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 9:

ScannerDirectives: “%block_comment” String String;

fn scanner_directives_10(
    &mut self,
    _percent_auto_underscore_newline_underscore_off_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 10:

ScannerDirectives: “%auto_newline_off”;

fn scanner_directives_11(
    &mut self,
    _percent_auto_underscore_ws_underscore_off_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 11:

ScannerDirectives: “%auto_ws_off”;

fn production_17(
    &mut self,
    _identifier_0: &ParseTreeStackEntry,
    _colon_1: &ParseTreeStackEntry,
    _alternations_2: &ParseTreeStackEntry,
    _semicolon_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 17:

Production: Identifier “:” Alternations “;”;

fn alternations_18(
    &mut self,
    _alternation_0: &ParseTreeStackEntry,
    _alternations_list_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 18:

Alternations: Alternation AlternationsList;

fn alternations_list_19(
    &mut self,
    _or_0: &ParseTreeStackEntry,
    _alternation_1: &ParseTreeStackEntry,
    _alternations_list_2: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 19:

AlternationsList: “|” Alternation AlternationsList;

fn alternations_list_20(
    &mut self,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 20:

AlternationsList: ;

fn alternation_list_22(
    &mut self,
    _factor_0: &ParseTreeStackEntry,
    _alternation_list_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 22:

AlternationList: Factor AlternationList;

fn alternation_list_23(
    &mut self,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 23:

AlternationList: ;

fn token_with_states_33(
    &mut self,
    _l_t_0: &ParseTreeStackEntry,
    _state_list_1: &ParseTreeStackEntry,
    _g_t_2: &ParseTreeStackEntry,
    _string_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 33:

TokenWithStates: “<” StateList “>” String;

fn group_34(
    &mut self,
    _l_paren_0: &ParseTreeStackEntry,
    _factor_1: &ParseTreeStackEntry,
    _alternations_2: &ParseTreeStackEntry,
    _r_paren_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 34:

Group: “(” Factor Alternations “)”;

fn optional_35(
    &mut self,
    _l_bracket_0: &ParseTreeStackEntry,
    _factor_1: &ParseTreeStackEntry,
    _alternations_2: &ParseTreeStackEntry,
    _r_bracket_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 35:

Optional: “[” Factor Alternations “]”;

fn repeat_36(
    &mut self,
    _l_brace_0: &ParseTreeStackEntry,
    _factor_1: &ParseTreeStackEntry,
    _alternations_2: &ParseTreeStackEntry,
    _r_brace_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 36:

Repeat: “{” Factor Alternations “}”;

fn identifier_37(
    &mut self,
    identifier_0: &ParseTreeStackEntry,
    parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 37:

Identifier: “[a-zA-Z_]\w*”;

fn string_38(
    &mut self,
    string_0: &ParseTreeStackEntry,
    parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 38:

String: “\u{0022}(¹|\.)*?\u{0022}”;

---

1.  ↩

fn scanner_state_39(
    &mut self,
    _percent_scanner_0: &ParseTreeStackEntry,
    _identifier_1: &ParseTreeStackEntry,
    _l_brace_2: &ParseTreeStackEntry,
    _scanner_state_list_3: &ParseTreeStackEntry,
    _r_brace_4: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 39:

ScannerState: “%scanner” Identifier “{” ScannerStateList “}”;

fn state_list_42(
    &mut self,
    _identifier_0: &ParseTreeStackEntry,
    _state_list_list_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 42:

StateList: Identifier StateListList;

fn state_list_rest_43(
    &mut self,
    _comma_0: &ParseTreeStackEntry,
    _identifier_1: &ParseTreeStackEntry,
    _state_list_rest_2: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 43:

StateListRest: “,” Identifier StateListRest;

fn state_list_rest_44(
    &mut self,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 44:

StateListRest: ;

fn scanner_switch_45(
    &mut self,
    _percent_sc_0: &ParseTreeStackEntry,
    _l_paren_1: &ParseTreeStackEntry,
    _scanner_name_opt_2: &ParseTreeStackEntry,
    _r_paren_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 45:

ScannerSwitch: “%sc” “(” ScannerNameOpt “)”;

fn scanner_switch_46(
    &mut self,
    _percent_push_0: &ParseTreeStackEntry,
    _l_paren_1: &ParseTreeStackEntry,
    _identifier_2: &ParseTreeStackEntry,
    _r_paren_3: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 46:

ScannerSwitch: “%push” “(” Identifier “)”;

fn scanner_switch_47(
    &mut self,
    _percent_pop_0: &ParseTreeStackEntry,
    _l_paren_1: &ParseTreeStackEntry,
    _r_paren_2: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 47:

ScannerSwitch: “%pop” “(” “)”;

fn scanner_name_opt_49(
    &mut self,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 49:

ScannerNameOpt: ;

fn parol_0(
    &mut self,
    _prolog_0: &ParseTreeStackEntry,
    _grammar_definition_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 0:

fn prolog_1(
    &mut self,
    _start_declaration_0: &ParseTreeStackEntry,
    _declarations_1: &ParseTreeStackEntry,
    _scanner_states_2: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 1:

fn declarations_3(
    &mut self,
    _declaration_0: &ParseTreeStackEntry,
    _declarations_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 3:

fn declaration_7(
    &mut self,
    _scanner_directives_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 7:

fn scanner_states_12(
    &mut self,
    _scanner_state_0: &ParseTreeStackEntry,
    _scanner_states_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 12:

fn scanner_states_13(&mut self, _parse_tree: &Tree<ParseTreeType>) -> Result<()>

Semantic action for production 13:

fn grammar_definition_14(
    &mut self,
    _percent_percent_0: &ParseTreeStackEntry,
    _production_1: &ParseTreeStackEntry,
    _grammar_definition_list_2: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 14:

fn grammar_definition_list_15(
    &mut self,
    _production_0: &ParseTreeStackEntry,
    _grammar_definition_list_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 15:

fn grammar_definition_list_16(
    &mut self,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 16:

fn alternation_21(
    &mut self,
    _alternation_list_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 21:

fn factor_24(
    &mut self,
    _group_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 24:

fn factor_25(
    &mut self,
    _repeat_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 25:

fn factor_26(
    &mut self,
    _optional_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 26:

fn factor_27(
    &mut self,
    _symbol_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 27:

fn symbol_28(
    &mut self,
    _identifier_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 28:

fn symbol_29(
    &mut self,
    _simple_token_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 29:

fn symbol_30(
    &mut self,
    _token_with_states_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 30:

fn symbol_31(
    &mut self,
    _scanner_switch_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 31:

fn simple_token_32(
    &mut self,
    _string_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 32:

fn scanner_state_list_40(
    &mut self,
    _scanner_directives_0: &ParseTreeStackEntry,
    _scanner_state_list_1: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 40:

fn scanner_state_list_41(
    &mut self,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 41:

fn scanner_name_opt_48(
    &mut self,
    _identifier_0: &ParseTreeStackEntry,
    _parse_tree: &Tree<ParseTreeType>
) -> Result<()>

Semantic action for production 48:

impl TryFrom<ParolGrammar> for GrammarConfig

type Error = Error

The type returned in the event of a conversion error.

fn try_from(grammar: ParolGrammar) -> Result<Self>

Performs the conversion.

impl UserActionsTrait for ParolGrammar

fn call_semantic_action_for_production_number(
    &mut self,
    prod_num: usize,
    children: &[ParseTreeStackEntry],
    parse_tree: &Tree<ParseTreeType>
) -> Result<()>

This function is implemented automatically for the user’s item.