EQ_EQ_EQ constant Null safety

TokenType const EQ_EQ_EQ

The === operator is not supported in the Dart language but is parsed as such by the scanner to support better recovery when a JavaScript code snippet is pasted into a Dart file.

Implementation

static const TokenType EQ_EQ_EQ =
    const TokenType('===', 'EQ_EQ_EQ', EQUALITY_PRECEDENCE, EQ_EQ_EQ_TOKEN);