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Cache result of flattenLists for ~8% time reduction.

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David Anson 2015-06-11 18:33:40 -07:00
parent 2a2371a8cb
commit 096f4d7afd
1 changed files with 69 additions and 62 deletions
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131
lib/rules.js
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@ -85,42 +85,43 @@ function forEachHeading(params, callback) {
}
// Returns (nested) lists as a flat array (in order)
function flattenLists(tokens, filterBy) {
var lists = [];
var stack = [];
var current = null;
var lastWithMap = { "map": [ 0, 1 ] };
tokens.forEach(function forToken(token) {
if ((token.type === "bullet_list_open") ||
(token.type === "ordered_list_open")) {
// Save current context and start a new one
stack.push(current);
current = {
"ordered": (token.type === "ordered_list_open"),
"open": token,
"items": [],
"nesting": stack.length - 1,
"lastLineIndex": -1,
"insert": lists.length
};
} else if ((token.type === "bullet_list_close") ||
(token.type === "ordered_list_close")) {
// Finalize current context and restore previous
current.lastLineIndex = lastWithMap.map[1];
if ((filterBy === undefined) || (filterBy === current.ordered)) {
function flattenLists(params) {
if (!params.flattenLists) {
var lists = [];
var stack = [];
var current = null;
var lastWithMap = { "map": [ 0, 1 ] };
params.tokens.forEach(function forToken(token) {
if ((token.type === "bullet_list_open") ||
(token.type === "ordered_list_open")) {
// Save current context and start a new one
stack.push(current);
current = {
"ordered": (token.type === "ordered_list_open"),
"open": token,
"items": [],
"nesting": stack.length - 1,
"lastLineIndex": -1,
"insert": lists.length
};
} else if ((token.type === "bullet_list_close") ||
(token.type === "ordered_list_close")) {
// Finalize current context and restore previous
current.lastLineIndex = lastWithMap.map[1];
lists.splice(current.insert, 0, current);
delete current.insert;
current = stack.pop();
} else if (token.type === "list_item_open") {
// Add list item
current.items.push(token);
} else if (token.map) {
// Track last token with map
lastWithMap = token;
}
current = stack.pop();
} else if (token.type === "list_item_open") {
// Add list item
current.items.push(token);
} else if (token.map) {
// Track last token with map
lastWithMap = token;
}
});
return lists;
});
params.flattenLists = lists;
}
return params.flattenLists;
}
module.exports = [
@ -180,15 +181,17 @@ module.exports = [
"tags": [ "bullet", "ul" ],
"func": function MD004(params, errors) {
var style = params.options.style || "consistent";
flattenLists(params.tokens, false).forEach(function forList(list) {
if (style === "consistent") {
style = unorderedListStyleFor(list.items[0]);
}
list.items.forEach(function forItem(item) {
if (unorderedListStyleFor(item) !== style) {
errors.push(item.lineNumber);
flattenLists(params).forEach(function forList(list) {
if (!list.ordered) {
if (style === "consistent") {
style = unorderedListStyleFor(list.items[0]);
}
});
list.items.forEach(function forItem(item) {
if (unorderedListStyleFor(item) !== style) {
errors.push(item.lineNumber);
}
});
}
});
}
},
@ -198,7 +201,7 @@ module.exports = [
"desc": "Inconsistent indentation for list items at the same level",
"tags": [ "bullet", "ul", "indentation" ],
"func": function MD005(params, errors) {
flattenLists(params.tokens).forEach(function forList(list) {
flattenLists(params).forEach(function forList(list) {
var indent = indentFor(list.items[0]);
list.items.forEach(function forItem(item) {
if (indentFor(item) !== indent) {
@ -214,8 +217,8 @@ module.exports = [
"desc": "Consider starting bulleted lists at the beginning of the line",
"tags": [ "bullet", "ul", "indentation" ],
"func": function MD006(params, errors) {
flattenLists(params.tokens, false).forEach(function forList(list) {
if (!list.nesting && indentFor(list.open)) {
flattenLists(params).forEach(function forList(list) {
if (!list.ordered && !list.nesting && indentFor(list.open)) {
errors.push(list.open.lineNumber);
}
});
@ -229,13 +232,15 @@ module.exports = [
"func": function MD007(params, errors) {
var optionsIndent = params.options.indent || 2;
var prevIndent = 0;
flattenLists(params.tokens, false).forEach(function forList(list) {
var indent = indentFor(list.open);
if ((indent > prevIndent) &&
((indent - prevIndent) !== optionsIndent)) {
errors.push(list.open.lineNumber);
flattenLists(params).forEach(function forList(list) {
if (!list.ordered) {
var indent = indentFor(list.open);
if ((indent > prevIndent) &&
((indent - prevIndent) !== optionsIndent)) {
errors.push(list.open.lineNumber);
}
prevIndent = indent;
}
prevIndent = indent;
});
}
},
@ -531,17 +536,19 @@ module.exports = [
"tags": [ "ol" ],
"func": function MD029(params, errors) {
var style = params.options.style || "one";
flattenLists(params.tokens, true).forEach(function forList(list) {
var number = 1;
list.items.forEach(function forItem(item) {
var re = new RegExp("^\\s*" + String(number) + "\\.");
if (!re.test(item.line)) {
errors.push(item.lineNumber);
}
if (style === "ordered") {
number++;
}
});
flattenLists(params).forEach(function forList(list) {
if (list.ordered) {
var number = 1;
list.items.forEach(function forItem(item) {
var re = new RegExp("^\\s*" + String(number) + "\\.");
if (!re.test(item.line)) {
errors.push(item.lineNumber);
}
if (style === "ordered") {
number++;
}
});
}
});
}
},
@ -555,7 +562,7 @@ module.exports = [
var olSingle = params.options.ol_single || 1;
var ulMulti = params.options.ul_multi || 1;
var olMulti = params.options.ol_multi || 1;
flattenLists(params.tokens).forEach(function forList(list) {
flattenLists(params).forEach(function forList(list) {
var lineCount = list.lastLineIndex - list.open.map[0];
var allSingle = lineCount === list.items.length;
var expectedSpaces = list.ordered ?