const C = require('tree-sitter-c/grammar');
module.exports = grammar(C, {
name: 'nqc',
rules: {
_top_level_item: ($, original) => choice(
original,
$.task_definition,
),
_non_case_statement: ($, original) => choice(
original,
$.until_statement,
$.acquire_statement,
$.monitor_statement,
$.start_statement,
$.stop_statement,
),
_top_level_statement: ($, original) => choice(
original,
$.until_statement,
$.acquire_statement,
$.monitor_statement,
$.start_statement,
$.stop_statement,
),
task_definition: $ => seq(
'task',
$.identifier,
field('parameters', $.parameter_list),
field('body', $.compound_statement),
),
subroutine_definition: $ => seq(
'sub',
$.identifier,
'(',
')',
field('body', $.compound_statement),
),
until_statement: $ => seq(
'until',
field('condition', $.parenthesized_expression),
field('body', $._statement),
),
acquire_statement: $ => prec.right(seq(
'acquire',
field('item', $.parenthesized_expression),
field('body', $._statement),
optional($.catch_clause),
)),
catch_clause: $ => seq(
'catch',
optional(seq(
'(',
field('event', $._expression),
')',
)),
field('body', $.compound_statement),
),
monitor_statement: $ => prec.right(seq(
'monitor',
field('item', $.parenthesized_expression),
field('body', $._statement),
repeat($.catch_clause),
)),
start_statement: $ => seq(
'start',
field('task', $.identifier),
),
stop_statement: $ => seq(
'stop',
field('task', $.identifier),
),
},
});