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874 lines
41 KiB
TypeScript
874 lines
41 KiB
TypeScript
// Copyright (c) 2022, Compiler Explorer Authors
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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import $ from 'jquery';
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import * as monaco from 'monaco-editor';
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// @ts-ignore "Could not find a declaration file"
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import * as cpp from 'monaco-editor/esm/vs/basic-languages/cpp/cpp';
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import cppp from './cppp-mode.js';
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function definition(): monaco.languages.IMonarchLanguage {
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const cppfront = $.extend(true, {}, cppp); // deep copy
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cppfront.tokenPostfix = '.herb';
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cppfront.defaultToken = 'invalid';
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// # Cpp2 token CSS class legend.
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//
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// Declaration/use of an _identifier_.
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// - 'identifier.definition'
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// - 'identifier.use'
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// - 'keyword.identifier.definition'
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// - 'keyword.identifier.use'
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//
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// Identifier that is contextually a type.
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// - 'type.contextual'
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// - 'keyword.type.contextual'
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//
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// Grammar term.
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// - 'keyword.contract-kind'
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// - 'keyword.this-specifier'
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// - 'keyword.parameter-direction'
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// Generic parsers.
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function parseCpp2Balanced(delimiters: string, delimiter: string, opener: RegExp, closer: RegExp) {
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return (cppfront.tokenizer['parse_cpp2_balanced_' + delimiters] = [
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{include: '@whitespace'},
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[opener, 'delimiter.' + delimiter, '$S2.$S3.$S4'],
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[closer, 'delimiter.' + delimiter, '@pop'],
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[/./, 'invalid', '@pop'],
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]);
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}
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parseCpp2Balanced('angles', 'angle', /</, />/);
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parseCpp2Balanced('parentheses', 'parenthesis', /\(/, /\)/);
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parseCpp2Balanced('squares', 'square', /\[/, /\]/);
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parseCpp2Balanced('curlies', 'curly', /{/, /}/);
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cppfront.tokenizer.parse_cpp2_balanced_punctuators = [
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// `$S2` is the parser.
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[/</, {token: '@rematch', switchTo: 'parse_cpp2_balanced_angles.$S2.$S3'}],
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[/\(/, {token: '@rematch', switchTo: 'parse_cpp2_balanced_parentheses.$S2'}],
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[/\[/, {token: '@rematch', switchTo: 'parse_cpp2_balanced_squares.$S2.$S3'}],
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[/{/, {token: '@rematch', switchTo: 'parse_cpp2_balanced_curlies.$S2.$S3.$S4'}],
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];
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// Until the single character `$S2`, parses `$S3`.
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cppfront.tokenizer.parse_cpp2_until = [
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{include: '@whitespace'},
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[
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/(.).*/,
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{
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cases: {
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'$1==$S2': {token: '@rematch', next: '@pop'},
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'@': {token: '@rematch', next: '$S3'},
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},
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},
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],
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];
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function parseCommaSeparated(state) {
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return [{include: '@whitespace'}, state, [/,/, 'delimiter'], [/./, '@rematch', '@pop']];
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}
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function setupLiteralParsers() {
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function balancedParenthesesRegex(max_nesting: number) {
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const front = String.raw`\((?:[^\\()]*|`;
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const back = String.raw`)*\)`;
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return front.repeat(max_nesting + 1) + back.repeat(max_nesting + 1);
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}
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cppfront.at_cpp2_balanced_parentheses = balancedParenthesesRegex(5);
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cppfront.at_cpp2_interpolation = /@at_cpp2_balanced_parentheses\$/;
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cppfront.tokenizer.parse_cpp2_interpolation = [
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[/(\()(.)/, ['delimiter.parenthesis', {token: '@rematch', next: 'parse_cpp2_expression'}]],
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[/:[^)]*/, 'string'],
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[/\)/, 'delimiter.parenthesis'],
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[/\$/, 'delimiter.interpolation', '@pop'],
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];
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cppfront.at_cpp2_string_literal = /@encoding?(?:\$?R)?"/;
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cppfront.tokenizer.parse_cpp2_string_literal = [
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// Rules adapted from [Monaco's C++][].
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[/@encoding?\$?R"(?:([^ ()\\\t]*))\(/, {token: 'string.raw.begin', switchTo: '@raw.$1.cpp2'}],
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[/@encoding?"([^"\\]|\\.)*$/, 'string.invalid', '@pop'],
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[/@encoding?"/, {token: 'string', switchTo: '@string..cpp2'}],
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];
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function parseCpp2Interpolation(state: string, prefix_token_regex: RegExp, token_class: string) {
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cppfront.tokenizer[state].unshift([
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prefix_token_regex.source + /(@at_cpp2_interpolation)/.source,
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{
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cases: {
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'$S3==cpp2': [token_class, {token: '@rematch', next: 'parse_cpp2_interpolation'}],
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'@': [token_class, token_class],
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},
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},
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]);
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}
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// Highlight interpolation also in non-interpolated raw string literal as it's most likely used for reflection.
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parseCpp2Interpolation('string', /([^\\"]*?)/, 'string');
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parseCpp2Interpolation('raw', /(.*?)/, 'string.raw');
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// Rules adapted from [Monaco's C++][]:
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cppfront.tokenizer.parse_cpp2_number_literal = [
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[/\d*\d+[eE]([-+]?\d+)?(@floatsuffix)/, 'number.float', '@pop'],
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[/\d*\.\d+([eE][-+]?\d+)?(@floatsuffix)/, 'number.float', '@pop'],
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[/0[xX][0-9a-fA-F']*[0-9a-fA-F](@integersuffix)/, 'number.hex', '@pop'],
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[/0[0-7']*[0-7](@integersuffix)/, 'number.octal', '@pop'],
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[/0[bB][0-1']*[0-1](@integersuffix)/, 'number.binary', '@pop'],
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[/\d[\d']*\d(@integersuffix)/, 'number', '@pop'],
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[/\d(@integersuffix)/, 'number', '@pop'],
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[/./, 'invalid', '@pop'],
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];
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cppfront.tokenizer.parse_cpp2_character_literal = [
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[/'[^\\']'/, 'string', '@pop'],
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[/(')(@escapes)(')/, ['string', 'string.escape', {token: 'string', next: '@pop'}]],
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[/'/, 'string.invalid', '@pop'],
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];
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cppfront.at_cpp2_literal_keyword = /(?:nullptr|true|false)\b/;
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cppfront.at_cpp2_literal = /\d|'|@at_cpp2_literal_keyword|@at_cpp2_string_literal/; // No `.`; `.0` isn't Cpp2.
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cppfront.tokenizer.parse_cpp2_literal = [
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[/\d/, {token: '@rematch', switchTo: 'parse_cpp2_number_literal'}],
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[/'/, {token: '@rematch', switchTo: 'parse_cpp2_character_literal'}],
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[/@at_cpp2_literal_keyword/, 'keyword.$0', '@pop'],
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[/@at_cpp2_string_literal/, {token: '@rematch', switchTo: 'parse_cpp2_string_literal'}],
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[/./, 'invalid', '@pop'],
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];
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}
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setupLiteralParsers();
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function setupIdExpressionParsers() {
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cppfront.at_cpp2_is_as_operator = /(?:is|as)\b/;
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cppfront.at_cpp2_overloaded_operator_keyword = cppfront.at_cpp2_is_as_operator;
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cppfront.at_cpp2_overloaded_operator =
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/\/=|\/|<<=|<<|<=>|<=|<|>>=|>>|>=|>|\+\+|\+=|\+|--|-=|->|-|/.source +
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/\|\||\|=|\||&&|&=|&|\*=|\*|%=|%|\^=|\^|~|==|=|!=|!|\(\s*\)|\[\s*\]|/.source +
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cppfront.at_cpp2_overloaded_operator_keyword.source;
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cppfront.at_cpp2_non_operator_identifier = /[a-zA-Z_]\w*/;
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cppfront.at_cpp2_operator_identifier = /operator\b\s*@at_cpp2_overloaded_operator/;
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cppfront.at_cpp2_identifier = /@at_cpp2_non_operator_identifier|@at_cpp2_operator_identifier/;
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cppfront.tokenizer.parse_cpp2_identifier = [
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[
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/(operator)(\s+)(@at_cpp2_overloaded_operator_keyword)/,
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[{token: 'keyword.identifier.$S2'}, '', {token: 'keyword.identifier.$S2', next: '@pop'}],
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],
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[
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/(operator\b)(\s*)(@at_cpp2_overloaded_operator)/,
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[{token: 'keyword.identifier.$S2'}, '', {token: 'delimiter', next: '@pop'}],
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],
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[
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/(?:this|that)\b/,
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{
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cases: {
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'$S2==parameter': {token: 'keyword.identifier.definition', next: '@pop'},
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'@': {token: 'keyword.identifier.$S2', next: '@pop'},
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},
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},
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],
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[/_(?=\s*=[^=])/, 'keyword.identifier.use', '@pop'],
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[
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/_\b/,
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{
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cases: {
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'$S2~definition|parameter': {token: 'keyword.identifier.definition', next: '@pop'}, // Anonymous definition.
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'$S2==using_statement': {token: 'keyword', next: '@pop'},
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'@': {token: '@rematch', switchTo: 'parse_cpp2_non_operator_identifier.$S2'},
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},
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},
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],
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[/./, {token: '@rematch', switchTo: 'parse_cpp2_non_operator_identifier.$S2'}],
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];
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cppfront.tokenizer.parse_cpp2_non_operator_identifier = [
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[
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/@at_cpp2_non_operator_identifier/,
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{
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cases: {
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'$S2~definition|parameter': {
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token: 'identifier.definition',
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switchTo: 'parse_cpp2_parameter_ellipsis.$S2',
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},
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'$S2==type': {token: 'type.contextual', next: '@pop'},
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'$S2==contract_kind': {token: 'keyword.contract-kind', next: '@pop'},
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'$S2==builtin_meta_function': {token: 'keyword', next: '@pop'},
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'@': {token: 'identifier.use', next: '@pop'},
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},
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},
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],
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];
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cppfront.tokenizer.parse_cpp2_parameter_ellipsis = [
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[
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/\.\.\./,
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{
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cases: {
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'$S2==parameter': {token: 'delimiter.ellipsis', next: '@pop'},
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'@': {token: '@rematch', next: '@pop'},
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},
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},
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],
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[/./, '@rematch', '@pop'],
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];
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cppfront.at_cpp2_unqualified_id_template_type_keyword = /(?:finally|cpp1_ref|cpp1_rvalue_ref)\b/;
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cppfront.at_cpp2_unqualified_id_template_expression_keyword = /(?:new|unchecked_(?:narrow|cast))\b/;
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cppfront.at_cpp2_unqualified_id_type_function_keyword =
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/(?:type_of|static_assert|unchecked_(?:(?:cmp_)(?:less|greater)(?:_eq)?|div|dereference|subscript))\b(?=\s*\()/;
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cppfront.at_cpp2_unqualified_id_keywords = /(unique|shared)(\.)(new(?=<))/;
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cppfront.at_cpp2_unqualified_id_keyword =
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/@at_cpp2_unqualified_id_template_type_keyword|@at_cpp2_unqualified_id_template_expression_keyword|@at_cpp2_unqualified_id_type_function_keyword|@at_cpp2_unqualified_id_keywords/;
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cppfront.tokenizer.parse_cpp2_unqualified_id_keywords = [
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[
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/@at_cpp2_unqualified_id_keywords/,
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[
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'keyword',
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'delimiter',
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{token: 'keyword.$3', switchTo: 'parse_cpp2_single_type_template_argument_list'},
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],
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],
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[
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/@at_cpp2_unqualified_id_template_type_keyword(?=<)/,
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{token: 'keyword.type', switchTo: 'parse_cpp2_single_type_template_argument_list'},
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],
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[
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/@at_cpp2_unqualified_id_template_expression_keyword(?=<)/,
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{
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cases: {
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'$S2==expression': {
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token: 'keyword',
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switchTo: 'parse_cpp2_single_type_template_argument_list',
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},
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'@': {token: 'invalid', switchTo: 'parse_cpp2_single_type_template_argument_list'},
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},
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},
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],
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[
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/@at_cpp2_unqualified_id_type_function_keyword(?=\s*\()/,
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{token: 'keyword.type', switchTo: 'parse_cpp2_expression_list'},
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],
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[
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/@at_cpp2_unqualified_id_template_type_keyword(?=\s*\()/,
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{
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cases: {
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'$S2==expression': {token: 'keyword.type', switchTo: 'parse_cpp2_expression_list'}, // CTAD in _expression_.
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'@': {token: 'invalid', switchTo: 'parse_cpp2_expression_list'},
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},
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},
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],
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[
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/@at_cpp2_unqualified_id_template_type_keyword/,
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{
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cases: {
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'$S2==type': {token: 'keyword.type', next: '@pop'}, // CTAD in _type-id_.
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'@': {token: 'invalid', next: '@pop'},
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},
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},
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],
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];
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cppfront.at_cpp2_type_qualifier = /const\b|\*/;
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cppfront.tokenizer.parse_cpp2_type_qualifier_seq = [
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{include: '@whitespace'},
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[/const\b/, 'keyword'],
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[/\*/, 'delimiter'],
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[/./, '@rematch', '@pop'],
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];
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cppfront.at_cpp2_keyword_type =
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/(?:[iu](?:8|16|32|64)|u?(?:short|int|long|longlong)|(?:un)?signed|void|bool|(?:_[su])?char|(?:long)?double|float)\b/;
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cppfront.at_cpp2_type_id =
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/@at_cpp2_type_qualifier|@at_cpp2_non_operator_id_expression|@at_cpp2_function_type_id/;
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cppfront.at_cpp2_function_type_id =
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/\(\s*\)|\(\s*(?:(?:@at_cpp2_parameter_direction\s+)?@at_cpp2_non_operator_identifier\s*)?@at_cpp2_unnamed_declaration_head/;
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cppfront.tokenizer.parse_cpp2_type_id = [
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[/@at_cpp2_type_qualifier/, '@rematch', 'parse_cpp2_type_qualifier_seq'],
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[/@at_cpp2_keyword_type\s*@at_cpp2_keyword_type/, 'invalid', '@pop'],
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[/@at_cpp2_keyword_type|_\b/, 'keyword.type.contextual', '@pop'],
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[
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/@at_cpp2_unqualified_id_keyword/,
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{token: '@rematch', switchTo: 'parse_cpp2_unqualified_id_keywords.type'},
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],
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[/=/, '@rematch', '@pop'],
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[/@at_cpp2_non_operator_id_expression/, {token: '@rematch', switchTo: 'parse_cpp2_id_expression.type'}],
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[/\(/, {token: '@rematch', switchTo: 'parse_cpp2_function_type'}],
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];
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cppfront.at_cpp2_builtin_contract_group = /(?:default|type_safety|bounds_safety|null_safety|testing)\b/;
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cppfront.at_cpp2_template_argument = /@at_cpp2_string_literal|@at_cpp2_expression|@at_cpp2_type_id/;
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cppfront.tokenizer.parse_cpp2_template_argument = [
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[/@at_cpp2_keyword_type/, 'keyword.type', '@pop'],
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[
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/@at_cpp2_builtin_contract_group/,
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{
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cases: {
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'$S2==contract_kind': {token: 'keyword.contract-group', next: '@pop'},
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'@': {token: '@rematch', switchTo: 'parse_cpp2_template_argument_rest'},
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},
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},
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],
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[/./, {token: '@rematch', switchTo: 'parse_cpp2_template_argument_rest'}],
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];
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cppfront.tokenizer.parse_cpp2_template_argument_rest = [
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[/@at_cpp2_function_type_id/, {token: '@rematch', switchTo: 'parse_cpp2_type_id'}],
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[/@at_cpp2_type_qualifier/, {token: '@rematch', switchTo: 'parse_cpp2_type_id'}],
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[/@at_cpp2_expression/, {token: '@rematch', switchTo: 'parse_cpp2_expression.template_argument'}],
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[/@at_cpp2_type_id/, {token: '@rematch', switchTo: 'parse_cpp2_type_id'}],
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];
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cppfront.tokenizer.parse_cpp2_template_argument_seq = parseCommaSeparated([
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/@at_cpp2_template_argument/,
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'@rematch',
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'parse_cpp2_template_argument.$S2',
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]);
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cppfront.tokenizer.parse_cpp2_template_argument_list = [
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[/</, {token: '@rematch', switchTo: 'parse_cpp2_balanced_angles.parse_cpp2_template_argument_seq.$S2'}],
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];
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cppfront.tokenizer.parse_cpp2_single_type_template_argument_list = [
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[/</, {token: '@rematch', switchTo: 'parse_cpp2_balanced_angles.parse_cpp2_type_id'}],
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];
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cppfront.at_cpp2_id_expression = /::|@at_cpp2_identifier/;
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cppfront.at_cpp2_non_operator_id_expression = /::|@at_cpp2_non_operator_identifier/;
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cppfront.tokenizer.parse_cpp2_template_id = [
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[/@at_cpp2_identifier/, '@rematch', 'parse_cpp2_identifier.$S2'],
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[/</, '@rematch', 'parse_cpp2_template_argument_list.$S2'],
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[/\s*(?:\.\.?|::)/, {token: '@rematch', switchTo: 'parse_cpp2_id_expression.$S2'}],
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[/./, '@rematch', '@pop'],
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];
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cppfront.tokenizer.parse_cpp2_id_expression = [
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{include: '@whitespace'},
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[/::/, ''],
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[/\.\.[.<=]/, '@rematch', '@pop'],
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[/\.\.?/, 'delimiter'],
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[/@at_cpp2_identifier</, {token: '@rematch', switchTo: 'parse_cpp2_template_id.$S2'}],
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[/@at_cpp2_non_operator_identifier(?=\s*(?:\.\.?|::))/, '@rematch', 'parse_cpp2_identifier.use'],
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[/@at_cpp2_identifier/, {token: '@rematch', switchTo: 'parse_cpp2_identifier.$S2'}],
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];
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}
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setupIdExpressionParsers();
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function setupExpressionParsers() {
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cppfront.tokenizer.parse_cpp2_primary_expression_id_expression = [
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[
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/@at_cpp2_unqualified_id_keyword/,
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{token: '@rematch', switchTo: 'parse_cpp2_unqualified_id_keywords.expression'},
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],
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[/@at_cpp2_keyword_type/, 'keyword.type', '@pop'],
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[/./, {token: '@rematch', switchTo: 'parse_cpp2_id_expression.use'}],
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];
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cppfront.tokenizer.parse_cpp2_expression_seq = parseCommaSeparated([
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/@at_cpp2_expression/,
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'@rematch',
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|
'parse_cpp2_expression',
|
|
]);
|
|
cppfront.tokenizer.parse_cpp2_expression_list = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_balanced_punctuators.parse_cpp2_expression_seq'}],
|
|
];
|
|
|
|
cppfront.at_cpp2_primary_expression =
|
|
/@at_cpp2_literal|@at_cpp2_id_expression|\.\.\.|\(|@at_cpp2_unnamed_declaration_head/;
|
|
// Can't ensure sequential parsing.
|
|
cppfront.tokenizer.parse_cpp2_primary_expression = [
|
|
[/inspect\b/, '@rematch', 'parse_cpp2_inspect_expression'],
|
|
// These two happen to parse UDLs:
|
|
[/@at_cpp2_literal/, {token: '@rematch', switchTo: 'parse_cpp2_primary_expression_literal_.$S2.$S3'}],
|
|
[
|
|
/@at_cpp2_id_expression/,
|
|
{token: '@rematch', switchTo: 'parse_cpp2_primary_expression_id_expression_.$S2.$S3'},
|
|
],
|
|
[/\.\.\./, 'delimiter.ellipsis'],
|
|
// Handle `(` later to workaround `(0)is` being parsed as two adjacent primary expressions.
|
|
[/@at_cpp2_unnamed_declaration_head/, '@rematch', 'parse_cpp2_declaration.expression'],
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_postfix_expression.$S2.$S3'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_primary_expression_id_expression_ = [
|
|
[/@at_cpp2_id_expression/, '@rematch', 'parse_cpp2_primary_expression_id_expression'],
|
|
[/\.\.\./, 'delimiter.ellipsis'],
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_postfix_expression.$S2.$S3'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_primary_expression_literal_ = [
|
|
[/@at_cpp2_literal/, '@rematch', 'parse_cpp2_literal'],
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_postfix_expression.$S2.$S3'}],
|
|
];
|
|
|
|
cppfront.at_cpp2_postfix_operator =
|
|
/\+\+|--|~|\$|[*&](?!\s*(?=\(|@at_cpp2_non_operator_identifier|@at_cpp2_literal))/;
|
|
cppfront.tokenizer.parse_cpp2_postfix_expression = [
|
|
{include: '@whitespace'},
|
|
[/@at_cpp2_postfix_operator/, 'delimiter.postfix-operator'],
|
|
[/[[(]/, {token: '@rematch', next: 'parse_cpp2_expression_list'}],
|
|
[
|
|
/(\.\.?)(\s*)(@at_cpp2_id_expression)/,
|
|
['delimiter', '', {token: '@rematch', next: 'parse_cpp2_id_expression'}],
|
|
],
|
|
[
|
|
/(\.\.[<=])(\s*)/,
|
|
['delimiter.range_operator', {token: '', switchTo: 'parse_cpp2_primary_expression.stop_at_postfix'}],
|
|
],
|
|
[
|
|
/./,
|
|
{
|
|
cases: {
|
|
'$S2==stop_at_postfix': {token: '@rematch', next: '@pop'},
|
|
'@': {
|
|
token: '@rematch',
|
|
switchTo:
|
|
'parse_cpp2_is_as_expression_target.parse_cpp2_expression.' +
|
|
'parse_cpp2_binary_expression_tail.$S2.$S3',
|
|
},
|
|
},
|
|
},
|
|
],
|
|
];
|
|
|
|
cppfront.at_cpp2_prefix_expression = /@at_cpp2_prefix_operator_delimiter|@at_cpp2_primary_expression/;
|
|
cppfront.at_cpp2_parameter_direction = /(?:in(?:_ref)?|inout|copy|out|move|forward(?:_ref)?)\b/;
|
|
cppfront.at_cpp2_prefix_operator_delimiter = /!|-|\+/;
|
|
cppfront.tokenizer.parse_cpp2_prefix_expression = [
|
|
{include: '@whitespace'},
|
|
[
|
|
/@at_cpp2_parameter_direction(?=\s*@at_cpp2_primary_expression)/,
|
|
'keyword.parameter-direction.prefix-operator',
|
|
],
|
|
[/@at_cpp2_prefix_operator_delimiter/, 'delimiter.prefix-operator'],
|
|
[/@at_cpp2_primary_expression/, {token: '@rematch', switchTo: 'parse_cpp2_primary_expression.$S2.$S3'}],
|
|
[/./, 'invalid', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_is_as_expression_target = [
|
|
// `@$S2` is the expression parser.
|
|
// `@$S3.$S4.$S5` is the continuation parser.
|
|
{include: '@whitespace'},
|
|
[
|
|
/(@at_cpp2_is_as_operator)(\s+)(@at_cpp2_type_id)/,
|
|
['keyword', '', {token: '@rematch', switchTo: 'parse_cpp2_type_id'}],
|
|
],
|
|
[/(is\b)(\s*)(@at_cpp2_expression)/, ['keyword', '', {token: '@rematch', switchTo: '@$S2'}]],
|
|
[/./, {token: '@rematch', switchTo: '@$S3.$S4.$S5'}],
|
|
];
|
|
|
|
cppfront.at_cpp2_logical_or_operator = /\*|\/|%|\+|-|<<|>>|<=>|<|>|<=|>=|==|!=|&|\^|\||&&|\|\|/;
|
|
cppfront.at_cpp2_assignment_operator = /=|\*=|\/=|%=|\+=|-=|>>=|<<=|&=|\^=|\|=/;
|
|
cppfront.tokenizer.parse_cpp2_binary_expression_tail = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_binary_expression_tail_preface.$S2.$S3'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_binary_expression_tail_preface = [
|
|
{include: '@whitespace'},
|
|
[
|
|
/>>?(?!=)/,
|
|
{
|
|
cases: {
|
|
'$S3==template_argument': {token: '@rematch', next: '@pop'},
|
|
'@': {token: '@rematch', switchTo: '@parse_cpp2_binary_expression_tail_body.$S2.$S3'},
|
|
},
|
|
},
|
|
],
|
|
[/./, {token: '@rematch', switchTo: '@parse_cpp2_binary_expression_tail_body.$S2.$S3'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_binary_expression_tail_body = [
|
|
{include: '@whitespace'},
|
|
[
|
|
/(@at_cpp2_logical_or_operator)(\s*)(@at_cpp2_prefix_expression)/,
|
|
['delimiter', '', {token: '@rematch', next: 'parse_cpp2_prefix_expression.$S2.$S3'}],
|
|
],
|
|
[
|
|
/@at_cpp2_assignment_operator/,
|
|
{
|
|
cases: {
|
|
'$S2==assignment': {token: 'delimiter', switchTo: 'parse_cpp2_prefix_expression.$S2.$S3'},
|
|
'@': {token: '@rematch', next: '@pop'},
|
|
},
|
|
},
|
|
],
|
|
[/./, '@rematch', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_logical_or_expression = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_prefix_expression'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_assignment_expression = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_prefix_expression.assignment.$S2'}],
|
|
];
|
|
|
|
cppfront.at_cpp2_expression = cppfront.at_cpp2_prefix_expression;
|
|
cppfront.tokenizer.parse_cpp2_expression = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_assignment_expression.$S2'}],
|
|
];
|
|
}
|
|
setupExpressionParsers();
|
|
|
|
function setupStatementParsers() {
|
|
cppfront.tokenizer.parse_cpp2_selection_statement = [
|
|
{include: '@whitespace'},
|
|
[
|
|
/(if)(\s+)(constexpr\b)/,
|
|
['keyword.if', '', {token: 'keyword.constexpr', next: 'parse_cpp2_logical_or_expression'}],
|
|
],
|
|
[/if\b/, 'keyword.if', 'parse_cpp2_logical_or_expression'],
|
|
[/{/, '@rematch', 'parse_cpp2_compound_statement'],
|
|
[/else\b/, 'keyword.else'],
|
|
[/./, '@rematch', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_using_statement = [
|
|
{include: '@whitespace'},
|
|
[/using\b/, {token: 'keyword.using', switchTo: 'parse_cpp2_id_expression.using_statement'}],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_alternative = [
|
|
{include: '@whitespace'},
|
|
[
|
|
/@at_cpp2_is_as_operator/,
|
|
'@rematch',
|
|
'parse_cpp2_is_as_expression_target.parse_cpp2_logical_or_expression.pop',
|
|
],
|
|
[/@at_cpp2_non_operator_identifier/, '@rematch', 'parse_cpp2_identifier.definition'],
|
|
[/@at_cpp2_unnamed_declaration_head/, 'identifier.definition'],
|
|
[/=/, {token: 'delimiter', switchTo: 'parse_cpp2_statement'}],
|
|
[/./, 'invalid', '@pop'],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_inspect_expression = [
|
|
{include: '@whitespace'},
|
|
[
|
|
/(inspect)(\s+)(constexpr\b)/,
|
|
['keyword.inspect', '', {token: 'keyword.constexpr', next: 'parse_cpp2_expression'}],
|
|
],
|
|
[/inspect\b/, 'keyword.inspect', 'parse_cpp2_expression'],
|
|
[/->/, '@rematch', 'parse_cpp2_return_list'],
|
|
[
|
|
/{/,
|
|
{token: '@rematch', switchTo: 'parse_cpp2_balanced_curlies.parse_cpp2_until.}.parse_cpp2_alternative'},
|
|
],
|
|
[/./, 'invalid', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_return_statement = [
|
|
[/(return)(\s*)(;)/, ['keyword.return', '', {token: 'delimiter', next: '@pop'}]],
|
|
[/return\b/, {token: 'keyword.return', switchTo: 'parse_cpp2_expression_statement'}],
|
|
];
|
|
|
|
cppfront.at_cpp2_jump_statement = /(?:break|continue)\b/;
|
|
cppfront.tokenizer.parse_cpp2_jump_statement = [
|
|
{include: '@whitespace'},
|
|
[/@at_cpp2_jump_statement/, {token: 'keyword.$0'}],
|
|
[/@at_cpp2_non_operator_identifier/, '@rematch', 'parse_cpp2_identifier'],
|
|
[/;/, 'delimiter', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_next_clause = [[/next\b/, 'keyword.next', 'parse_cpp2_assignment_expression']];
|
|
cppfront.tokenizer.parse_cpp2_while_statement = [
|
|
{include: '@whitespace'},
|
|
[/while\b/, 'keyword.while', 'parse_cpp2_logical_or_expression'],
|
|
{include: '@parse_cpp2_next_clause'},
|
|
[/{/, {token: '@rematch', switchTo: 'parse_cpp2_compound_statement'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_do_statement = [
|
|
{include: '@whitespace'},
|
|
[/do\b/, 'keyword.do', 'parse_cpp2_compound_statement'],
|
|
[/while\b/, 'keyword.while', 'parse_cpp2_logical_or_expression'],
|
|
{include: '@parse_cpp2_next_clause'},
|
|
[/;/, 'delimiter', '@pop'],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_for_statement = [
|
|
{include: '@whitespace'},
|
|
[/for\b/, 'keyword.for', 'parse_cpp2_expression'],
|
|
{include: '@parse_cpp2_next_clause'},
|
|
[/(do\b)(\s*)/, ['keyword.do', {token: '', switchTo: 'parse_cpp2_parameterized_statement'}]],
|
|
];
|
|
cppfront.at_cpp2_iteration_statement_head = /(?:while|do|for)\b/;
|
|
cppfront.tokenizer.parse_cpp2_iteration_statement = [
|
|
[/while\b/, {token: '@rematch', switchTo: 'parse_cpp2_while_statement'}],
|
|
[/do\b/, {token: '@rematch', switchTo: 'parse_cpp2_do_statement'}],
|
|
[/for\b/, {token: '@rematch', switchTo: 'parse_cpp2_for_statement'}],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_compound_statement = [
|
|
[/{/, {token: '@rematch', switchTo: 'parse_cpp2_balanced_curlies.parse_cpp2_until.}.parse_cpp2_statement'}],
|
|
];
|
|
|
|
cppfront.at_cpp2_parameterized_statement =
|
|
/\(\s*(?:@at_cpp2_parameter_direction\s+)?@at_cpp2_identifier_definition/;
|
|
cppfront.tokenizer.parse_cpp2_parameterized_statement = [
|
|
[/\(/, '@rematch', 'parse_cpp2_parameter_declaration_list'],
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_statement'}],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_expression_statement = [
|
|
{include: '@whitespace'},
|
|
[/@at_cpp2_expression/, '@rematch', 'parse_cpp2_expression'],
|
|
// Handle optional `;` after unbraced statement of unnamed declaration:
|
|
[/;(?=\s*(?:[()\],]|@at_cpp2_is_as_operator))/, 'delimiter', '@pop'],
|
|
[
|
|
/;/,
|
|
{
|
|
cases: {
|
|
'$S2==expression': {token: '@rematch', next: '@pop'},
|
|
'@': {token: 'delimiter', next: '@pop'},
|
|
},
|
|
},
|
|
],
|
|
[
|
|
/./,
|
|
{
|
|
cases: {
|
|
'$S2~expression|parameter': {token: '@rematch', next: '@pop'},
|
|
'@': {token: 'invalid', next: '@pop'},
|
|
},
|
|
},
|
|
],
|
|
];
|
|
|
|
cppfront.at_cpp2_contract_kind = /(?:pre|post|assert)\b/;
|
|
cppfront.tokenizer.parse_cpp2_contract = [
|
|
[/@at_cpp2_contract_kind/, '@rematch', 'parse_cpp2_id_expression.contract_kind'],
|
|
[/\(/, {token: '@rematch', switchTo: 'parse_cpp2_expression_list'}],
|
|
[/./, '@rematch', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_statement = [
|
|
{include: '@whitespace'},
|
|
[/if\b/, {token: '@rematch', switchTo: 'parse_cpp2_selection_statement'}],
|
|
[/using\b/, {token: '@rematch', switchTo: 'parse_cpp2_using_statement'}],
|
|
[/inspect\b/, {token: '@rematch', switchTo: 'parse_cpp2_inspect_expression'}],
|
|
[/return\b/, {token: '@rematch', switchTo: 'parse_cpp2_return_statement'}],
|
|
[/@at_cpp2_jump_statement/, {token: '@rematch', switchTo: 'parse_cpp2_jump_statement'}],
|
|
[/@at_cpp2_iteration_statement_head/, {token: '@rematch', switchTo: 'parse_cpp2_iteration_statement'}],
|
|
[/{/, {token: '@rematch', switchTo: 'parse_cpp2_compound_statement'}],
|
|
[/@at_cpp2_declaration_head/, {token: '@rematch', switchTo: 'parse_cpp2_declaration.definition'}],
|
|
[/@at_cpp2_parameterized_statement/, {token: '@rematch', switchTo: 'parse_cpp2_parameterized_statement'}],
|
|
[/@at_cpp2_contract_kind/, {token: '@rematch', switchTo: 'parse_cpp2_contract'}],
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_expression_statement.$S2'}],
|
|
];
|
|
}
|
|
setupStatementParsers();
|
|
|
|
function setupDeclarationParsers() {
|
|
cppfront.at_cpp2_builtin_meta_function =
|
|
/(?:ordered|weakly_ordered|partially_ordered|copyable|basic_value|value|weakly_ordered_value|partially_ordered_value|struct|hashable|interface|polymorphic_base|enum|flag_enum|union|noisy|regex|cpp1_rule_of_zero|print)\b/;
|
|
cppfront.tokenizer.parse_cpp2_meta_functions_list = [
|
|
[/[^@]/, '@rematch', '@pop'],
|
|
[
|
|
/(@)(\s*)(@at_cpp2_builtin_meta_function)/,
|
|
['delimiter', '', {token: '@rematch', next: 'parse_cpp2_id_expression.builtin_meta_function'}],
|
|
],
|
|
[
|
|
/(@)(\s*)(@at_cpp2_non_operator_id_expression)/,
|
|
['delimiter', '', {token: '@rematch', next: 'parse_cpp2_id_expression'}],
|
|
],
|
|
];
|
|
|
|
cppfront.at_cpp2_parameter_declaration = /@at_cpp2_non_operator_identifier|@at_cpp2_unnamed_declaration_head/;
|
|
cppfront.at_cpp2_this_specifier = /(?:implicit|virtual|override|final)\b/;
|
|
cppfront.tokenizer.parse_cpp2_parameter_declaration = [
|
|
[
|
|
/(@at_cpp2_parameter_direction)(\s*)(@at_cpp2_unnamed_declaration_head)/,
|
|
['keyword.parameter-direction', '', {token: '@rematch', switchTo: 'parse_cpp2_declaration.parameter'}],
|
|
],
|
|
[
|
|
/@at_cpp2_declaration_head|@at_cpp2_unnamed_declaration_head/,
|
|
{token: '@rematch', switchTo: 'parse_cpp2_declaration.parameter.$S2'},
|
|
],
|
|
[
|
|
/(@at_cpp2_parameter_direction)(\s+)(@at_cpp2_declaration_head)/,
|
|
['keyword.parameter-direction', '', {token: '@rematch', switchTo: 'parse_cpp2_declaration.parameter'}],
|
|
],
|
|
[
|
|
/(@at_cpp2_this_specifier)(\s+)(@at_cpp2_declaration_head)/,
|
|
['keyword.this-specifier', '', {token: '@rematch', switchTo: 'parse_cpp2_declaration.parameter'}],
|
|
],
|
|
[
|
|
/(@at_cpp2_this_specifier)(\s+)(@at_cpp2_parameter_direction)(\s+)(@at_cpp2_declaration_head)/,
|
|
[
|
|
'keyword.this-specifier',
|
|
'',
|
|
'keyword.parameter-direction',
|
|
'',
|
|
{token: '@rematch', switchTo: 'parse_cpp2_declaration.parameter'},
|
|
],
|
|
],
|
|
[
|
|
/(@at_cpp2_parameter_direction)(\s+)(@at_cpp2_non_operator_identifier)/,
|
|
['keyword.parameter-direction', '', {token: '@rematch', switchTo: 'parse_cpp2_identifier.parameter'}],
|
|
],
|
|
[
|
|
/(@at_cpp2_this_specifier)(\s+)(@at_cpp2_parameter_direction)(\s+)(@at_cpp2_non_operator_identifier)/,
|
|
[
|
|
'keyword.this-specifier',
|
|
'',
|
|
'keyword.parameter-direction',
|
|
'',
|
|
{token: '@rematch', switchTo: 'parse_cpp2_identifier.parameter'},
|
|
],
|
|
],
|
|
[
|
|
/(@at_cpp2_this_specifier)(\s+)(@at_cpp2_non_operator_identifier)/,
|
|
['keyword.this-specifier', '', {token: '@rematch', switchTo: 'parse_cpp2_identifier.parameter'}],
|
|
],
|
|
[/@at_cpp2_non_operator_identifier/, {token: '@rematch', switchTo: 'parse_cpp2_identifier.parameter'}],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_parameter_declaration_seq = parseCommaSeparated([
|
|
/@at_cpp2_parameter_declaration/,
|
|
'@rematch',
|
|
'parse_cpp2_parameter_declaration.$S2',
|
|
]);
|
|
cppfront.tokenizer.parse_cpp2_parameter_declaration_list = [
|
|
[
|
|
/./,
|
|
{
|
|
token: '@rematch',
|
|
switchTo: 'parse_cpp2_balanced_punctuators.parse_cpp2_parameter_declaration_seq.$S2',
|
|
},
|
|
],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_return_list = [
|
|
[
|
|
/(->)(\s*)(@at_cpp2_parameter_direction)(\s+)(@at_cpp2_type_id)/,
|
|
[
|
|
'delimiter',
|
|
'',
|
|
'keyword.parameter-direction',
|
|
'',
|
|
{token: '@rematch', switchTo: 'parse_cpp2_type_id'},
|
|
],
|
|
],
|
|
[/(->)(\s*)(@at_cpp2_type_id)/, ['delimiter', '', {token: '@rematch', switchTo: 'parse_cpp2_type_id'}]],
|
|
[/->/, 'invalid', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_function_type = [
|
|
{include: '@whitespace'},
|
|
[/\(/, '@rematch', 'parse_cpp2_parameter_declaration_list'],
|
|
[/throws\b/, 'keyword'],
|
|
[/->/, '@rematch', 'parse_cpp2_return_list'],
|
|
[/@at_cpp2_contract_kind/, '@rematch', 'parse_cpp2_contract'],
|
|
[/./, '@rematch', '@pop'],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_declaration_initializer = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_statement.$S2'}],
|
|
];
|
|
|
|
cppfront.tokenizer.parse_cpp2_declaration_signature = [
|
|
{include: '@whitespace'},
|
|
[/@/, '@rematch', 'parse_cpp2_meta_functions_list'],
|
|
[/</, '@rematch', 'parse_cpp2_parameter_declaration_list.template'],
|
|
[/\(/, '@rematch', 'parse_cpp2_function_type'],
|
|
[/requires\b/, 'keyword', 'parse_cpp2_logical_or_expression'],
|
|
[/final\b/, 'keyword'],
|
|
[/type\b/, {token: 'keyword', switchTo: 'parse_cpp2_declaration_signature.type.$S3'}],
|
|
[/namespace\b/, 'keyword'],
|
|
[/@at_cpp2_iteration_statement_head/, {token: '@rematch', switchTo: 'parse_cpp2_iteration_statement'}],
|
|
[/@at_cpp2_is_as_operator/, '@rematch', 'parse_cpp2_is_as_expression_target.pop.pop'],
|
|
[/@at_cpp2_type_id/, '@rematch', 'parse_cpp2_type_id'],
|
|
[
|
|
/==/,
|
|
{
|
|
cases: {
|
|
'$S2==type': {token: 'delimiter', next: 'parse_cpp2_type_id'},
|
|
'@': {token: 'delimiter', switchTo: 'parse_cpp2_declaration_initializer.$S2'},
|
|
},
|
|
},
|
|
],
|
|
[
|
|
/=/,
|
|
{
|
|
cases: {
|
|
'$S3==template': {token: 'delimiter', next: 'parse_cpp2_type_id'},
|
|
'@': {token: 'delimiter', switchTo: 'parse_cpp2_declaration_initializer.$S2'},
|
|
},
|
|
},
|
|
],
|
|
[
|
|
/;/,
|
|
{
|
|
cases: {
|
|
'$S2==expression': {token: '@rematch', next: '@pop'},
|
|
'@': {token: 'delimiter', next: '@pop'},
|
|
},
|
|
},
|
|
],
|
|
[/./, '@rematch', '@pop'],
|
|
];
|
|
|
|
cppfront.at_cpp2_unnamed_declaration_head = /:(?!:)/;
|
|
cppfront.at_cpp2_identifier_definition =
|
|
/@at_cpp2_identifier\s*(?:\.\.\.)?\s*@at_cpp2_unnamed_declaration_head/;
|
|
cppfront.at_cpp2_top_level_declaration_head =
|
|
/(?:@at_cpp2_access_specifier\s+)?(?!@at_cpp2_access_specifier)@at_cpp2_identifier_definition/;
|
|
cppfront.at_cpp2_declaration_head = /(?:@at_cpp2_access_specifier\s+)?@at_cpp2_identifier_definition/;
|
|
cppfront.at_cpp2_access_specifier = /(?:export|public|protected|private)\b/;
|
|
cppfront.tokenizer.parse_cpp2_declaration_head = [
|
|
{include: '@whitespace'},
|
|
[/@at_cpp2_access_specifier/, 'keyword'],
|
|
[/guard(?=@at_cpp2_non_operator_identifier?\s*@at_cpp2_unnamed_declaration_head)/, 'keyword'],
|
|
[/@at_cpp2_identifier/, '@rematch', 'parse_cpp2_identifier.$S2'],
|
|
[/\.\.\./, 'delimiter.ellipsis'],
|
|
[
|
|
/@at_cpp2_unnamed_declaration_head/,
|
|
{token: 'identifier.definition', switchTo: 'parse_cpp2_declaration_signature.$S2.$S3'},
|
|
],
|
|
];
|
|
cppfront.tokenizer.parse_cpp2_declaration = [
|
|
[/./, {token: '@rematch', switchTo: 'parse_cpp2_declaration_head.$S2.$S3'}],
|
|
];
|
|
}
|
|
setupDeclarationParsers();
|
|
|
|
// To not parse a Cpp1 label as a Cpp2 declaration, within a Cpp1 block, don't parse Cpp2.
|
|
cppfront.tokenizer.root.unshift(
|
|
[
|
|
/^(\s*)(@at_cpp2_identifier(?=@at_cpp2_unnamed_declaration_head))/,
|
|
{
|
|
cases: {
|
|
'$S2!=cpp1': ['', {token: '@rematch', next: 'parse_cpp2_declaration.definition'}],
|
|
'$2~(public|protected|private|default)': ['', {token: 'keyword.$2'}],
|
|
'@': ['', 'identifier'],
|
|
},
|
|
},
|
|
],
|
|
[
|
|
/^\s*@at_cpp2_top_level_declaration_head/,
|
|
{
|
|
cases: {
|
|
'$S2!=cpp1': {token: '@rematch', next: 'parse_cpp2_declaration.definition'},
|
|
'@': 'label.cpp1',
|
|
},
|
|
},
|
|
],
|
|
[/{/, 'delimiter.curly', 'root.cpp1'],
|
|
[/}/, 'delimiter.curly', 'root'],
|
|
);
|
|
|
|
return cppfront;
|
|
|
|
// [Monaco's C++]: https://github.com/microsoft/monaco-editor/blob/main/src/basic-languages/cpp/cpp.ts
|
|
}
|
|
|
|
monaco.languages.register({id: 'cpp2-cppfront'});
|
|
monaco.languages.setLanguageConfiguration('cpp2-cppfront', cpp.conf);
|
|
monaco.languages.setMonarchTokensProvider('cpp2-cppfront', definition());
|