nl_tokens: Gets the effective argument type for an argument in a call expression .
pl_tokens: function getEffectiveArgumentType ( node , argIndex , arg ) { // Decorators provide special arguments, a tagged template expression provides // a special first argument, and string literals get string literal types // unless we're reporting errors if ( node . kind === 139 /* Decorator */ ) { return getEffectiveDecoratorArgumentType ( node , argIndex ) ; } else if ( argIndex === 0 && node . <mask> === 170 /* TaggedTemplateExpression */ ) { return globalTemplateStringsArrayType ; } // This is not a synthetic argument, so we return 'undefined' // to signal that the caller needs to check the argument. return undefined ; }