add element access, yield expression; other fixes

Changes

2 changed files (+88/-31)

• grammar.js
  • @@ -58,9 +58,11 @@ module.exports = grammar({
    $.object_creation_expression, $.this_access, $.initializer, - // --- expressions that have a precedence $.member_access_expression, + $.element_access_expression, $.method_call_expression, + $.yield_expression, + // --- expressions that have a precedence $.postfix_expression, $.static_cast_expression, $.typeof_expression,
  • @@ -96,6 +98,22 @@ module.exports = grammar({
    $.identifier ), + element_access_expression: $ => seq( + choice( + $.member_access_expression, + seq('(', $._expression, ')'), + $.literal + ), + repeat1($.element_access) + ), + + element_access: $ => seq( + '[', + $._expression, + repeat(seq(',', $._expression)), + ']' + ), + argument: $ => choice( seq('ref', $._expression), seq('out', $._expression),
  • @@ -106,36 +124,39 @@ module.exports = grammar({
    method_call_expression: $ => seq( choice( seq('(', $._expression, ')'), - seq($.member_access_expression, optional($.type_arguments)) + seq($.member_access_expression, optional($.type_arguments)), + $.element_access_expression ), '(', optional(seq($.argument, repeat(seq(',', $.argument)))), ')' ), - postfix_expression: $ => prec.left(14, seq($._expression, choice('++', '--'))), - static_cast_expression: $ => prec.right(13, seq('(', choice($.type, '!'), ')', $._expression)), - typeof_expression: $ => prec.right(13, seq('typeof', '(', $.type, ')')), - sizeof_expression: $ => prec.right(13, seq('sizeof', '(', $.type, ')')), - unary_expression: $ => prec.right(13, seq(choice('!', '~', '++', '--', '-', '*', '&'), $._expression)), - multiplicative_expression: $ => prec.left(12, seq($._expression, choice('*', '/', '%'), $._expression)), - arithmetic_expression: $ => prec.left(11, seq($._expression, choice('+', '-'), $._expression)), - bitshift_expression: $ => prec.left(10, seq($._expression, choice('<<', '>>'), $._expression)), - in_expression: $ => prec.left(9, seq($._expression, optional('not'), 'in', $._expression)), - dynamic_cast_expression: $ => prec.left(9, seq($._expression, 'as', $.type)), - type_relational_expression: $ => prec.left(9, seq($._expression, 'is', $.type)), - relational_expression: $ => prec.left(9, seq($._expression, choice('<', '<=', '>=', '>'), $._expression)), - equality_expression: $ => prec.left(8, seq($._expression, choice('==', '!='), $._expression)), - bitwise_and_expression: $ => prec.left(7, seq($._expression, '&', $._expression)), - bitwise_xor_expression: $ => prec.left(6, seq($._expression, '^', $._expression)), - bitwise_or_expression: $ => prec.left(5, seq($._expression, '|', $._expression)), - logical_and_expression: $ => prec.left(4, seq($._expression, '&&', $._expression)), - logical_or_expression: $ => prec.left(3, seq($._expression, '||', $._expression)), - null_coalescing_expression: $ => prec.left(2, seq($._expression, '??', $._expression)), - ternary_expression: $ => prec.right(1, seq($._expression, '?', $._expression, ':', $._expression)), + yield_expression: $ => seq('yield', $._expression), + + postfix_expression: $ => prec.left(15, seq($._expression, choice('++', '--'))), + static_cast_expression: $ => prec.right(14, seq('(', choice($.type, '!'), ')', $._expression)), + typeof_expression: $ => prec.right(14, seq('typeof', '(', $.type, ')')), + sizeof_expression: $ => prec.right(14, seq('sizeof', '(', $.type, ')')), + unary_expression: $ => prec.right(14, seq(choice('!', '~', '++', '--', '-', '*', '&'), $._expression)), + multiplicative_expression: $ => prec.left(13, seq($._expression, choice('*', '/', '%'), $._expression)), + arithmetic_expression: $ => prec.left(12, seq($._expression, choice('+', '-'), $._expression)), + bitshift_expression: $ => prec.left(11, seq($._expression, choice('<<', '>>'), $._expression)), + in_expression: $ => prec.left(10, seq($._expression, optional('not'), 'in', $._expression)), + dynamic_cast_expression: $ => prec.left(10, seq($._expression, 'as', $.type)), + type_relational_expression: $ => prec.left(10, seq($._expression, 'is', $.type)), + relational_expression: $ => prec.left(10, seq($._expression, choice('<', '<=', '>=', '>'), $._expression)), + equality_expression: $ => prec.left(9, seq($._expression, choice('==', '!='), $._expression)), + bitwise_and_expression: $ => prec.left(8, seq($._expression, '&', $._expression)), + bitwise_xor_expression: $ => prec.left(7, seq($._expression, '^', $._expression)), + bitwise_or_expression: $ => prec.left(6, seq($._expression, '|', $._expression)), + logical_and_expression: $ => prec.left(5, seq($._expression, '&&', $._expression)), + logical_or_expression: $ => prec.left(4, seq($._expression, '||', $._expression)), + null_coalescing_expression: $ => prec.left(3, seq($._expression, '??', $._expression)), + ternary_expression: $ => prec.right(2, seq($._expression, '?', $._expression, ':', $._expression)), _assignment_operator: $ => choice('=', '+=', '-=', '|=', '&=', '^=', '/=', '*=', '%=', '<<=', '>>='), - assignment_expression: $ => prec.right(0, seq($._expression, $._assignment_operator, $._expression)), + assignment_expression: $ => prec.right(1, seq($._expression, $._assignment_operator, $._expression)), this_access: $ => 'this',
  • @@ -296,7 +317,7 @@ module.exports = grammar({
    creation_method_declaration: $ => seq( optional($.access_modifier), - optional(seq($.member_declaration_modifier, repeat(seq(',', $.member_declaration_modifier)))), + repeat($.member_declaration_modifier), $.symbol, '(', optional(seq($.parameter, repeat(seq(',', $.parameter)))),
  • @@ -308,7 +329,7 @@ module.exports = grammar({
    method_declaration: $ => seq( optional($.access_modifier), - optional(seq($.member_declaration_modifier, repeat(seq(',', $.member_declaration_modifier)))), + repeat($.member_declaration_modifier), $.type, $.symbol, optional($.type_arguments),
  • @@ -322,7 +343,7 @@ module.exports = grammar({
    field_declaration: $ => seq( optional($.access_modifier), - optional(seq($.member_declaration_modifier, repeat(seq(',', $.member_declaration_modifier)))), + repeat($.member_declaration_modifier), $.type, $.identifier, optional(seq('=', $._expression)),
  • @@ -331,7 +352,7 @@ module.exports = grammar({
    constant_declaration: $ => seq( optional($.access_modifier), - optional(seq($.member_declaration_modifier, repeat(seq(',', $.member_declaration_modifier)))), + repeat($.member_declaration_modifier), 'const', $.type, $.identifier,
  • @@ -344,11 +365,11 @@ module.exports = grammar({
    property_declaration: $ => seq( optional($.access_modifier), - optional(seq($.member_declaration_modifier, repeat(seq(',', $.member_declaration_modifier)))), + repeat($.member_declaration_modifier), $.type, $.symbol, '{', - repeat(choice(seq('default', '=', $._expression), $.property_accessor)), + repeat(choice(seq('default', '=', $._expression, ';'), $.property_accessor)), '}' ),
  • @@ -384,7 +405,13 @@ module.exports = grammar({
    $.while_statement, $.do_statement, $.for_statement, - $.foreach_statement + $.foreach_statement, + $.break_statement, + $.continue_statement, + $.lock_statement, + $.delete_statement, + $.throw_statement, + $.yield_statement ), return_statement: $ => seq('return', optional($._expression), ';'),
  • @@ -459,6 +486,27 @@ module.exports = grammar({
    $._expression, ')', $._statement + ), + + break_statement: $ => seq('break', ';'), + + continue_statement: $ => seq('continue', ';'), + + lock_statement: $ => seq( + 'lock', '(', $._expression, ')', + $._statement + ), + + delete_statement: $ => seq( + 'delete', $._expression, ';' + ), + + throw_statement: $ => seq( + 'throw', $._expression, ';' + ), + + yield_statement: $ => seq( + 'yield', 'return', $._expression, ';' ) },
  • @@ -470,8 +518,9 @@ module.exports = grammar({
    [$.type], // disambiguate between 'X as <type *> ...' and '(X as <type>)* ...' [$.array_type], // when 'X[]? ...' could also be '(X[]) ? ...' [$._expression, $.method_call_expression], // 'X <' may be start of comparison or method call + [$._expression, $.element_access_expression], // because EAEs have a prefix that is a member access [$.initializer, $.block], // because {} is ambiguous in statement-expression contexts - [$.if_statement] + [$.if_statement] // because of ambiguity with if statements ], extras: $ => [
• queries/highlights.scm
  • @@ -23,12 +23,16 @@
    (verbatim_string) @string [ + "abstract" "as" "async" + "break" "catch" "class" "const" "construct" + "continue" + "default" "do" "dynamic" "else"
  • @@ -40,6 +44,7 @@
    "if" "in" "is" + "lock" "namespace" "new" "not"
  • @@ -49,12 +54,15 @@
    "return" "set" "sizeof" + "throw" + "throws" "try" "typeof" "unowned" "virtual" "weak" "while" + "yield" ] @keyword [