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Merge pull request #3220 from less/revert-3217-bugfix-1241
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Revert "Fixes #1421 - re-parses variable-interpolated elements to selectors"
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@matthew-dean
matthew-dean authored Jun 17, 2018
2 parents 468b532 + 85a716c commit e1255ec
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Showing 10 changed files with 40 additions and 179 deletions.
51 changes: 23 additions & 28 deletions lib/less/parser/parser.js
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Original file line number Diff line number Diff line change
Expand Up @@ -810,7 +810,7 @@ var Parser = function Parser(context, imports, fileInfo) {
if (!e) {
break;
}
elem = new(tree.Element)(c, e, false, elemIndex, fileInfo);
elem = new(tree.Element)(c, e, elemIndex, fileInfo);
if (elements) {
elements.push(elem);
} else {
Expand Down Expand Up @@ -1097,7 +1097,7 @@ var Parser = function Parser(context, imports, fileInfo) {
}
}

if (e) { return new(tree.Element)(c, e, e instanceof tree.Variable, index, fileInfo); }
if (e) { return new(tree.Element)(c, e, index, fileInfo); }
},

//
Expand Down Expand Up @@ -1177,30 +1177,6 @@ var Parser = function Parser(context, imports, fileInfo) {
if (elements) { return new(tree.Selector)(elements, allExtends, condition, index, fileInfo); }
if (allExtends) { error("Extend must be used to extend a selector, it cannot be used on its own"); }
},
selectors: function () {
var s, selectors;
while (true) {
s = this.selector();
if (!s) {
break;
}
if (selectors) {
selectors.push(s);
} else {
selectors = [ s ];
}
parserInput.commentStore.length = 0;
if (s.condition && selectors.length > 1) {
error("Guards are only currently allowed on a single selector.");
}
if (!parserInput.$char(',')) { break; }
if (s.condition) {
error("Guards are only currently allowed on a single selector.");
}
parserInput.commentStore.length = 0;
}
return selectors;
},
attribute: function () {
if (!parserInput.$char('[')) { return; }

Expand Down Expand Up @@ -1252,15 +1228,34 @@ var Parser = function Parser(context, imports, fileInfo) {
// div, .class, body > p {...}
//
ruleset: function () {
var selectors, rules, debugInfo;
var selectors, s, rules, debugInfo;

parserInput.save();

if (context.dumpLineNumbers) {
debugInfo = getDebugInfo(parserInput.i);
}

selectors = this.selectors();
while (true) {
s = this.selector();
if (!s) {
break;
}
if (selectors) {
selectors.push(s);
} else {
selectors = [ s ];
}
parserInput.commentStore.length = 0;
if (s.condition && selectors.length > 1) {
error("Guards are only currently allowed on a single selector.");
}
if (!parserInput.$char(',')) { break; }
if (s.condition) {
error("Guards are only currently allowed on a single selector.");
}
parserInput.commentStore.length = 0;
}

if (selectors && (rules = this.block())) {
parserInput.forget();
Expand Down
5 changes: 1 addition & 4 deletions lib/less/tree/element.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ var Node = require("./node"),
Paren = require("./paren"),
Combinator = require("./combinator");

var Element = function (combinator, value, isVariable, index, currentFileInfo, visibilityInfo) {
var Element = function (combinator, value, index, currentFileInfo, visibilityInfo) {
this.combinator = combinator instanceof Combinator ?
combinator : new Combinator(combinator);

Expand All @@ -13,7 +13,6 @@ var Element = function (combinator, value, isVariable, index, currentFileInfo, v
} else {
this.value = "";
}
this.isVariable = isVariable;
this._index = index;
this._fileInfo = currentFileInfo;
this.copyVisibilityInfo(visibilityInfo);
Expand All @@ -31,14 +30,12 @@ Element.prototype.accept = function (visitor) {
Element.prototype.eval = function (context) {
return new Element(this.combinator,
this.value.eval ? this.value.eval(context) : this.value,
this.isVariable,
this.getIndex(),
this.fileInfo(), this.visibilityInfo());
};
Element.prototype.clone = function () {
return new Element(this.combinator,
this.value,
this.isVariable,
this.getIndex(),
this.fileInfo(), this.visibilityInfo());
};
Expand Down
2 changes: 1 addition & 1 deletion lib/less/tree/mixin-definition.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ var Selector = require("./selector"),

var Definition = function (name, params, rules, condition, variadic, frames, visibilityInfo) {
this.name = name;
this.selectors = [new Selector([new Element(null, name, false, this._index, this._fileInfo)])];
this.selectors = [new Selector([new Element(null, name, this._index, this._fileInfo)])];
this.params = params;
this.condition = condition;
this.variadic = variadic;
Expand Down
88 changes: 12 additions & 76 deletions lib/less/tree/ruleset.js
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Original file line number Diff line number Diff line change
Expand Up @@ -41,72 +41,20 @@ Ruleset.prototype.accept = function (visitor) {
}
};
Ruleset.prototype.eval = function (context) {
var that = this, selectors, selCnt, selector, i, hasOnePassingSelector = false;
var thisSelectors = this.selectors, selectors,
selCnt, selector, i, hasOnePassingSelector = false;

if (this.selectors && (selCnt = this.selectors.length)) {
if (thisSelectors && (selCnt = thisSelectors.length)) {
selectors = new Array(selCnt);
defaultFunc.error({
type: "Syntax",
message: "it is currently only allowed in parametric mixin guards,"
});
for (i = 0; i < selCnt; i++) {
selector = this.selectors[i].eval(context);
var removeSelector = false;
for (var j = 0; j < selector.elements.length; j++) {
var el = selector.elements[j];
// If selector elements were variables, re-parse to see if they are actually selectors
if (el.isVariable) {
var selectorsToInsert;
if (Array.isArray(el.value.value)) {
// Convert var evaluated to list as list of selectors
selectorsToInsert = new Array(el.value.value.length);
el.value.value.forEach(function(val, k) {
selectorsToInsert[k] = new Selector(
[new Element(
null,
val.value,
false,
el.getIndex(),
el.fileInfo()
)]
);
})
} else if (typeof el.value.value === 'string') {
this.parse.parseNode(
el.value.value,
["selectors"],
el.getIndex(),
el.fileInfo(),
function(err, result) {
el.isVariable = false;
if (result) {
result = utils.flattenArray(result);
// If the parsed element matches itself, it's still an element
if (result.length !== 1 || el.value.value !== result[0].elements[0].value) {
selectorsToInsert = result;
}
}
});
}
if (selectorsToInsert) {
this.selectors = this.selectors.slice(0, i + 1)
.concat(selectorsToInsert, this.selectors.slice(i + 1));
selCnt += selectorsToInsert.length;
removeSelector = true;
}
}
}
if (removeSelector) {
selCnt -= 1;
this.selectors.splice(i, 1);
i -= 1;
continue;
}
else {
selectors[i] = selector;
if (selector.evaldCondition) {
hasOnePassingSelector = true;
}
selector = thisSelectors[i].eval(context);
selectors[i] = selector;
if (selector.evaldCondition) {
hasOnePassingSelector = true;
}
}
defaultFunc.reset();
Expand Down Expand Up @@ -214,7 +162,7 @@ Ruleset.prototype.eval = function (context) {
// for rulesets, check if it is a css guard and can be removed
if (rule instanceof Ruleset && rule.selectors && rule.selectors.length === 1) {
// check if it can be folded in (e.g. & where)
if (rule.selectors[0] && rule.selectors[0].isJustParentSelector()) {
if (rule.selectors[0].isJustParentSelector()) {
rsRules.splice(i--, 1);

for (var j = 0; (subRule = rule.rules[j]); j++) {
Expand Down Expand Up @@ -563,13 +511,7 @@ Ruleset.prototype.joinSelector = function (paths, context, selector) {
} else {
var insideParent = new Array(elementsToPak.length);
for (j = 0; j < elementsToPak.length; j++) {
insideParent[j] = new Element(
null,
elementsToPak[j],
originalElement.isVariable,
originalElement._index,
originalElement._fileInfo
);
insideParent[j] = new Element(null, elementsToPak[j], originalElement._index, originalElement._fileInfo);
}
replacementParen = new Paren(new Selector(insideParent));
}
Expand All @@ -578,7 +520,7 @@ Ruleset.prototype.joinSelector = function (paths, context, selector) {

function createSelector(containedElement, originalElement) {
var element, selector;
element = new Element(null, containedElement, originalElement.isVariable, originalElement._index, originalElement._fileInfo);
element = new Element(null, containedElement, originalElement._index, originalElement._fileInfo);
selector = new Selector([element]);
return selector;
}
Expand Down Expand Up @@ -612,13 +554,7 @@ Ruleset.prototype.joinSelector = function (paths, context, selector) {
combinator = parentEl.combinator;
}
// join the elements so far with the first part of the parent
newJoinedSelector.elements.push(new Element(
combinator,
parentEl.value,
replacedElement.isVariable,
replacedElement._index,
replacedElement._fileInfo
));
newJoinedSelector.elements.push(new Element(combinator, parentEl.value, replacedElement._index, replacedElement._fileInfo));
newJoinedSelector.elements = newJoinedSelector.elements.concat(addPath[0].elements.slice(1));
}

Expand Down Expand Up @@ -752,7 +688,7 @@ Ruleset.prototype.joinSelector = function (paths, context, selector) {
// the combinator used on el should now be applied to the next element instead so that
// it is not lost
if (sel.length > 0) {
sel[0].elements.push(new Element(el.combinator, '', el.isVariable, el._index, el._fileInfo));
sel[0].elements.push(new Element(el.combinator, '', el._index, el._fileInfo));
}
selectorsMultiplied.push(sel);
}
Expand Down
2 changes: 1 addition & 1 deletion lib/less/tree/selector.js
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@ Selector.prototype.getElements = function(els) {
return els;
};
Selector.prototype.createEmptySelectors = function() {
var el = new Element('', '&', false, this._index, this._fileInfo),
var el = new Element('', '&', this._index, this._fileInfo),
sels = [new Selector([el], null, null, this._index, this._fileInfo)];
sels[0].mediaEmpty = true;
return sels;
Expand Down
18 changes: 1 addition & 17 deletions lib/less/utils.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/* jshint proto: true */
var utils = {
module.exports = {
getLocation: function(index, inputStream) {
var n = index + 1,
line = null,
Expand Down Expand Up @@ -65,21 +65,5 @@ var utils = {
}
}
return obj1;
},
flattenArray: function(arr, result) {
result = result || [];
for (var i = 0, length = arr.length; i < length; i++) {
var value = arr[i];
if (Array.isArray(value)) {
utils.flattenArray(value, result);
} else {
if (value !== undefined) {
result.push(value);
}
}
}
return result;
}
};

module.exports = utils;
1 change: 0 additions & 1 deletion lib/less/visitors/extend-visitor.js
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Original file line number Diff line number Diff line change
Expand Up @@ -385,7 +385,6 @@ ProcessExtendsVisitor.prototype = {
firstElement = new tree.Element(
match.initialCombinator,
replacementSelector.elements[0].value,
replacementSelector.elements[0].isVariable,
replacementSelector.elements[0].getIndex(),
replacementSelector.elements[0].fileInfo()
);
Expand Down
21 changes: 0 additions & 21 deletions test/css/parse-interpolation.css
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This file was deleted.

2 changes: 1 addition & 1 deletion test/less-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ module.exports = function() {
var oneTestOnly = process.argv[2],
isFinished = false;

var isVerbose = process.env.npm_config_loglevel !== 'concise';
var isVerbose = process.env.npm_config_loglevel === 'verbose';

var normalFolder = 'test/less';
var bomFolder = 'test/less-bom';
Expand Down
29 changes: 0 additions & 29 deletions test/less/parse-interpolation.less
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This file was deleted.

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