improve grammar - add slice expression - fixes

Changes

1 changed files (+16/-12)

• grammar.js
  • @@ -123,9 +123,14 @@ ),
    element_access: $ => seq( '[', - $._expression, - repeat(seq(',', $._expression)), + choice($._expression, $.slice_expression), + repeat(seq(',', choice($._expression, $.slice_expression))), ']' + ), + + slice_expression: $ => choice( + seq($._expression, ':', optional($._expression)), + seq(':', $._expression) ), argument: $ => choice(
  • @@ -189,12 +194,13 @@ array_creation_expression: $ => seq(
    'new', $.type, $.inline_array_type, - $.initializer + optional($.initializer) ), object_creation_expression: $ => seq( 'new', - $.unqualified_type, + $.type, + optional(seq('.', $.identifier)), '(', optional(seq($.argument, repeat(seq(',', $.argument)))), ')',
  • @@ -203,7 +209,7 @@ ),
    object_initializers: $ => seq( '{', - optional(seq($.member_initializer, repeat(seq(',', $.member_initializer)))), + optional(seq($.member_initializer, repeat(seq(',', $.member_initializer)), optional(',') /* support trailing comma */)), '}' ),
  • @@ -215,12 +221,12 @@ ),
    initializer: $ => seq( '{', - optional(seq($.argument, repeat(seq(',', $.argument)))), + optional(seq($.argument, repeat(seq(',', $.argument)), optional(',') /* support trailing comma */)), '}' ), boolean: $ => choice('true', 'false'), - character: $ => /'\S'/, + character: $ => /'(\S+|\s)'/, integer: $ => choice(/[1-9]\d*|0[0-7]*/, /0[xX][A-Fa-f0-9]+/), null: $ => 'null', real: $ => /\d+(\.\d+)?([eE][+-]?\d+)?/,
  • @@ -561,7 +567,7 @@ optional(seq('=', $._expression)),
    ';' ), - inline_array_type: $ => seq('[', optional($.integer), ']'), + inline_array_type: $ => seq('[', optional($._expression), ']'), property_declaration: $ => seq( optional($.access_modifier),
  • @@ -706,10 +712,7 @@
    for_statement: $ => seq( 'for', '(', - optional(choice( - $.local_declaration, - seq($._expression, ';') - )), + optional(choice($.local_declaration, seq($._expression, ';'), ';')), optional($._expression), ';', optional(seq($._expression, repeat(seq(',', $._expression)))),
  • @@ -827,6 +830,7 @@ [$.symbol, $.member_access_expression], // disambiguate member access and static cast expressions
    [$.symbol, $.member_access_expression, $.lambda_expression], // head of lambda expression may be head of symbol or MA [$.type], // disambiguate between 'X as <type *> ...' and '(X as <type>)* ...' [$.array_type], // when 'X[]? ...' could also be '(X[]) ? ...' + [$.symbol, $.type], // for object creation expression [$._expression, $.method_call_expression], // 'X <' may be start of comparison or method call [$._contained_expression, $.method_call_expression], // for ambiguity because of contained expressions [$._expression, $.element_access_expression], // because EAEs have a prefix that is a member access