diff options
Diffstat (limited to 'tools/node_modules/eslint/node_modules/espree/lib/comment-attachment.js')
| -rw-r--r-- | tools/node_modules/eslint/node_modules/espree/lib/comment-attachment.js | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/tools/node_modules/eslint/node_modules/espree/lib/comment-attachment.js b/tools/node_modules/eslint/node_modules/espree/lib/comment-attachment.js deleted file mode 100644 index b82b5f1cd3..0000000000 --- a/tools/node_modules/eslint/node_modules/espree/lib/comment-attachment.js +++ /dev/null @@ -1,175 +0,0 @@ -/** - * @fileoverview Attaches comments to the AST. - * @author Nicholas C. Zakas - */ - -"use strict"; - -//------------------------------------------------------------------------------ -// Requirements -//------------------------------------------------------------------------------ - -var astNodeTypes = require("./ast-node-types"); - -//------------------------------------------------------------------------------ -// Private -//------------------------------------------------------------------------------ - -var extra = { - trailingComments: [], - leadingComments: [], - bottomRightStack: [], - previousNode: null -}; - -//------------------------------------------------------------------------------ -// Public -//------------------------------------------------------------------------------ - -module.exports = { - - reset: function() { - extra.trailingComments = []; - extra.leadingComments = []; - extra.bottomRightStack = []; - extra.previousNode = null; - }, - - addComment: function(comment) { - extra.trailingComments.push(comment); - extra.leadingComments.push(comment); - }, - - processComment: function(node) { - var lastChild, - trailingComments, - i, - j; - - if (node.type === astNodeTypes.Program) { - if (node.body.length > 0) { - return; - } - } - - if (extra.trailingComments.length > 0) { - - /* - * If the first comment in trailingComments comes after the - * current node, then we're good - all comments in the array will - * come after the node and so it's safe to add then as official - * trailingComments. - */ - if (extra.trailingComments[0].range[0] >= node.range[1]) { - trailingComments = extra.trailingComments; - extra.trailingComments = []; - } else { - - /* - * Otherwise, if the first comment doesn't come after the - * current node, that means we have a mix of leading and trailing - * comments in the array and that leadingComments contains the - * same items as trailingComments. Reset trailingComments to - * zero items and we'll handle this by evaluating leadingComments - * later. - */ - extra.trailingComments.length = 0; - } - } else { - if (extra.bottomRightStack.length > 0 && - extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments && - extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments[0].range[0] >= node.range[1]) { - trailingComments = extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments; - delete extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments; - } - } - - // Eating the stack. - while (extra.bottomRightStack.length > 0 && extra.bottomRightStack[extra.bottomRightStack.length - 1].range[0] >= node.range[0]) { - lastChild = extra.bottomRightStack.pop(); - } - - if (lastChild) { - if (lastChild.leadingComments) { - if (lastChild.leadingComments[lastChild.leadingComments.length - 1].range[1] <= node.range[0]) { - node.leadingComments = lastChild.leadingComments; - delete lastChild.leadingComments; - } else { - // A leading comment for an anonymous class had been stolen by its first MethodDefinition, - // so this takes back the leading comment. - // See Also: https://github.com/eslint/espree/issues/158 - for (i = lastChild.leadingComments.length - 2; i >= 0; --i) { - if (lastChild.leadingComments[i].range[1] <= node.range[0]) { - node.leadingComments = lastChild.leadingComments.splice(0, i + 1); - break; - } - } - } - } - } else if (extra.leadingComments.length > 0) { - if (extra.leadingComments[extra.leadingComments.length - 1].range[1] <= node.range[0]) { - if (extra.previousNode) { - for (j = 0; j < extra.leadingComments.length; j++) { - if (extra.leadingComments[j].end < extra.previousNode.end) { - extra.leadingComments.splice(j, 1); - j--; - } - } - } - if (extra.leadingComments.length > 0) { - node.leadingComments = extra.leadingComments; - extra.leadingComments = []; - } - } else { - - // https://github.com/eslint/espree/issues/2 - - /* - * In special cases, such as return (without a value) and - * debugger, all comments will end up as leadingComments and - * will otherwise be eliminated. This extra step runs when the - * bottomRightStack is empty and there are comments left - * in leadingComments. - * - * This loop figures out the stopping point between the actual - * leading and trailing comments by finding the location of the - * first comment that comes after the given node. - */ - for (i = 0; i < extra.leadingComments.length; i++) { - if (extra.leadingComments[i].range[1] > node.range[0]) { - break; - } - } - - /* - * Split the array based on the location of the first comment - * that comes after the node. Keep in mind that this could - * result in an empty array, and if so, the array must be - * deleted. - */ - node.leadingComments = extra.leadingComments.slice(0, i); - if (node.leadingComments.length === 0) { - delete node.leadingComments; - } - - /* - * Similarly, trailing comments are attached later. The variable - * must be reset to null if there are no trailing comments. - */ - trailingComments = extra.leadingComments.slice(i); - if (trailingComments.length === 0) { - trailingComments = null; - } - } - } - - extra.previousNode = node; - - if (trailingComments) { - node.trailingComments = trailingComments; - } - - extra.bottomRightStack.push(node); - } - -}; |