All files / src/utils isExpr.js

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var isPred = require( './isPred' );
var isClause = require( './isClause' );
var isClauseRef = require( './isClauseRef' );
var isDelayedClause = require( './isDelayedClause' );
 
function isExpr( x ) {
  return isPred( x ) ||
    isClause( x ) ||
    isClauseRef( x ) ||
    isDelayedClause( x );
}
 
module.exports = isExpr;