Sha256: 8dc5d503efcf21f9904fcdf80fa98d91f617c839ba6e19e8b3f78a9f3b9bc674
Contents?: true
Size: 1.25 KB
Versions: 7
Compression:
Stored size: 1.25 KB
Contents
function walk ( ast, ref) {
var enter = ref.enter;
var leave = ref.leave;
visit( ast, null, enter, leave );
}
var shouldSkip = false;
var context = { skip: function () { return shouldSkip = true; } };
var childKeys = {};
var toString = Object.prototype.toString;
function isArray ( thing ) {
return toString.call( thing ) === '[object Array]';
}
function visit ( node, parent, enter, leave, prop, index ) {
if ( !node ) { return; }
if ( enter ) {
var _shouldSkip = shouldSkip;
shouldSkip = false;
enter.call( context, node, parent, prop, index );
var skipped = shouldSkip;
shouldSkip = _shouldSkip;
if ( skipped ) { return; }
}
var keys = childKeys[ node.type ] || (
childKeys[ node.type ] = Object.keys( node ).filter( function (key) { return typeof node[ key ] === 'object'; } )
);
for ( var i = 0; i < keys.length; i += 1 ) {
var key = keys[i];
var value = node[ key ];
if ( isArray( value ) ) {
for ( var j = 0; j < value.length; j += 1 ) {
visit( value[j], node, enter, leave, key, j );
}
}
else if ( value && value.type ) {
visit( value, node, enter, leave, key, null );
}
}
if ( leave ) {
leave( node, parent, prop, index );
}
}
export { walk, childKeys };
//# sourceMappingURL=estree-walker.es.js.map
Version data entries
7 entries across 7 versions & 3 rubygems