( tokens )
| 2138 | } |
| 2139 | |
| 2140 | function matcherFromTokens( tokens ) { |
| 2141 | var checkContext, matcher, j, |
| 2142 | len = tokens.length, |
| 2143 | leadingRelative = jQuery.expr.relative[ tokens[ 0 ].type ], |
| 2144 | implicitRelative = leadingRelative || jQuery.expr.relative[ " " ], |
| 2145 | i = leadingRelative ? 1 : 0, |
| 2146 | |
| 2147 | // The foundational matcher ensures that elements are reachable from top-level context(s) |
| 2148 | matchContext = addCombinator( function( elem ) { |
| 2149 | return elem === checkContext; |
| 2150 | }, implicitRelative, true ), |
| 2151 | matchAnyContext = addCombinator( function( elem ) { |
| 2152 | return indexOf.call( checkContext, elem ) > -1; |
| 2153 | }, implicitRelative, true ), |
| 2154 | matchers = [ function( elem, context, xml ) { |
| 2155 | |
| 2156 | // Support: IE 11+ |
| 2157 | // IE sometimes throws a "Permission denied" error when strict-comparing |
| 2158 | // two documents; shallow comparisons work. |
| 2159 | // eslint-disable-next-line eqeqeq |
| 2160 | var ret = ( !leadingRelative && ( xml || context != outermostContext ) ) || ( |
| 2161 | ( checkContext = context ).nodeType ? |
| 2162 | matchContext( elem, context, xml ) : |
| 2163 | matchAnyContext( elem, context, xml ) ); |
| 2164 | |
| 2165 | // Avoid hanging onto element |
| 2166 | // (see https://github.com/jquery/sizzle/issues/299) |
| 2167 | checkContext = null; |
| 2168 | return ret; |
| 2169 | } ]; |
| 2170 | |
| 2171 | for ( ; i < len; i++ ) { |
| 2172 | if ( ( matcher = jQuery.expr.relative[ tokens[ i ].type ] ) ) { |
| 2173 | matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ]; |
| 2174 | } else { |
| 2175 | matcher = jQuery.expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches ); |
| 2176 | |
| 2177 | // Return special upon seeing a positional matcher |
| 2178 | if ( matcher[ jQuery.expando ] ) { |
| 2179 | |
| 2180 | // Find the next relative operator (if any) for proper handling |
| 2181 | j = ++i; |
| 2182 | for ( ; j < len; j++ ) { |
| 2183 | if ( jQuery.expr.relative[ tokens[ j ].type ] ) { |
| 2184 | break; |
| 2185 | } |
| 2186 | } |
| 2187 | return setMatcher( |
| 2188 | i > 1 && elementMatcher( matchers ), |
| 2189 | i > 1 && toSelector( |
| 2190 | |
| 2191 | // If the preceding token was a descendant combinator, insert an implicit any-element `*` |
| 2192 | tokens.slice( 0, i - 1 ) |
| 2193 | .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } ) |
| 2194 | ).replace( rtrimCSS, "$1" ), |
| 2195 | matcher, |
| 2196 | i < j && matcherFromTokens( tokens.slice( i, j ) ), |
| 2197 | j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ), |
no test coverage detected