angular/vscode-ng-language-service/syntaxes/let-declaration.json

{
  "scopeName": "template.let.ng",
  "injectionSelector": "L:text.html -comment -expression.ng -meta.tag -source.css -source.js",
  "patterns": [
    {
      "include": "#letDeclaration"
    }
  ],
  "repository": {
    "letDeclaration": {
      "name": "meta.definition.variable.ng",
      "begin": "(@let)\\s+([_$[:alpha:]][_$[:alnum:]]*)\\s*(=)?",
      "beginCaptures": {
        "1": {
          "name": "storage.type.ng"
        },
        "2": {
          "name": "variable.other.constant.ng"
        },
        "3": {
          "name": "keyword.operator.assignment.ng"
        }
      },
      "patterns": [
        {
          "include": "#letInitializer"
        }
      ],
      "end": "(?<=;)"
    },
    "letInitializer": {
      "begin": "\\s*",
      "beginCaptures": {
        "0": {
          "name": "keyword.operator.assignment.ng"
        }
      },
      "contentName": "meta.definition.variable.initializer.ng",
      "patterns": [
        {
          "include": "expression.ng"
        }
      ],
      "end": ";",
      "endCaptures": {
        "0": {
          "name": "punctuation.terminator.statement.ng"
        }
      }
    }
  }
}