116 lines
3.2 KiB
JavaScript
116 lines
3.2 KiB
JavaScript
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/// <reference types="tree-sitter-cli/dsl" />
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// @ts-check
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module.exports = grammar({
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name: "jrpc",
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rules: {
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// TODO: add the actual grammar rules
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document: ($) => repeat($._statement),
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_statement: ($) =>
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choice(
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$.type_declaration,
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$.define_declaration,
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$.import_declaration,
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$.service_declaration,
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$.enum_declaration,
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),
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type_declaration: ($) => seq("type", $.identifier, optional($.attributes)),
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attributes: ($) =>
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seq("{", optional(seq($.attribute, repeat($.attribute))), "}"),
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attribute: ($) => seq($.pair, ";"),
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enum_declaration: ($) => seq("enum", $.identifier, $.enum_values),
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enum_values: ($) =>
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seq(
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"{",
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optional(seq($.enum_value, repeat(seq(",", $.enum_value)))),
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"}",
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),
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enum_value: ($) =>
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choice($.enum_value_declaration, $.enum_value_assignment),
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enum_value_assignment: ($) => seq($.identifier, "=", $.number),
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enum_value_declaration: ($) => seq($.identifier),
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define_declaration: ($) =>
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seq("define", $.identifier, choice($.string, $.identifier), ";"),
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import_declaration: ($) => seq("import", $.string, ";"),
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service_declaration: ($) =>
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seq("service", $.identifier, $.service_functions),
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service_functions: ($) =>
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seq(
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"{",
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optional(
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repeat(
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seq(
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repeat($.function_decorator),
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choice($.service_function, $.service_notification),
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),
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),
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),
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"}",
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),
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function_decorator: ($) => seq("@", $.identifier, $.decorator_arguments),
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decorator_arguments: ($) =>
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seq(
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"(",
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optional(seq($.string, optional(repeat(seq(",", $.string))))),
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")",
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),
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service_notification: ($) =>
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seq(
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"notification",
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field("name", $.identifier),
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field("parameters", $.function_arguments),
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";",
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),
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service_function: ($) =>
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seq(
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field("name", $.identifier),
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field("parameters", $.function_arguments),
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":",
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field("return_type", $.type),
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";",
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),
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function_arguments: ($) =>
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seq(
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"(",
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optional(
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seq($.function_argument, repeat(seq(",", $.function_argument))),
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),
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")",
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),
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function_argument: ($) => seq($.identifier, ":", $.type),
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pair: ($) =>
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seq(
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field("key", $.identifier),
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optional("?"),
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":",
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field("value", $.type),
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),
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type: ($) =>
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choice($.map_type, $.array_type, $.primitive_type, $.identifier),
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primitive_type: ($) => choice("int", "string", "float", "boolean", "void"),
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array_type: ($) => seq(choice($.primitive_type, $.identifier), "[]"),
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map_type: ($) => seq("{", $.map_key_type, ",", $.type, "}"),
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map_key_type: ($) => choice("int", "string"),
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identifier: ($) => /[a-zA-Z_][a-zA-Z_0-9]*/,
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string: ($) => choice(seq('"', '"'), seq('"', $._string_content, '"')),
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_string_content: ($) =>
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repeat1(choice($.string_content, $.escape_sequence)),
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string_content: (_) => token.immediate(prec(1, /[^\\"\n]+/)),
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escape_sequence: (_) =>
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token.immediate(seq("\\", /(\"|\\|\/|b|f|n|r|t|u)/)),
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number: ($) => /[0-9]+/,
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},
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});
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