diff options
Diffstat (limited to 'node_modules/jsonc-parser/lib/esm/impl/edit.js')
| -rw-r--r-- | node_modules/jsonc-parser/lib/esm/impl/edit.js | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/node_modules/jsonc-parser/lib/esm/impl/edit.js b/node_modules/jsonc-parser/lib/esm/impl/edit.js new file mode 100644 index 0000000..4114d52 --- /dev/null +++ b/node_modules/jsonc-parser/lib/esm/impl/edit.js @@ -0,0 +1,185 @@ +/*--------------------------------------------------------------------------------------------- + * Copyright (c) Microsoft Corporation. All rights reserved. + * Licensed under the MIT License. See License.txt in the project root for license information. + *--------------------------------------------------------------------------------------------*/ +'use strict'; +import { format, isEOL } from './format'; +import { parseTree, findNodeAtLocation } from './parser'; +export function removeProperty(text, path, options) { + return setProperty(text, path, void 0, options); +} +export function setProperty(text, originalPath, value, options) { + const path = originalPath.slice(); + const errors = []; + const root = parseTree(text, errors); + let parent = void 0; + let lastSegment = void 0; + while (path.length > 0) { + lastSegment = path.pop(); + parent = findNodeAtLocation(root, path); + if (parent === void 0 && value !== void 0) { + if (typeof lastSegment === 'string') { + value = { [lastSegment]: value }; + } + else { + value = [value]; + } + } + else { + break; + } + } + if (!parent) { + // empty document + if (value === void 0) { // delete + throw new Error('Can not delete in empty document'); + } + return withFormatting(text, { offset: root ? root.offset : 0, length: root ? root.length : 0, content: JSON.stringify(value) }, options); + } + else if (parent.type === 'object' && typeof lastSegment === 'string' && Array.isArray(parent.children)) { + const existing = findNodeAtLocation(parent, [lastSegment]); + if (existing !== void 0) { + if (value === void 0) { // delete + if (!existing.parent) { + throw new Error('Malformed AST'); + } + const propertyIndex = parent.children.indexOf(existing.parent); + let removeBegin; + let removeEnd = existing.parent.offset + existing.parent.length; + if (propertyIndex > 0) { + // remove the comma of the previous node + let previous = parent.children[propertyIndex - 1]; + removeBegin = previous.offset + previous.length; + } + else { + removeBegin = parent.offset + 1; + if (parent.children.length > 1) { + // remove the comma of the next node + let next = parent.children[1]; + removeEnd = next.offset; + } + } + return withFormatting(text, { offset: removeBegin, length: removeEnd - removeBegin, content: '' }, options); + } + else { + // set value of existing property + return withFormatting(text, { offset: existing.offset, length: existing.length, content: JSON.stringify(value) }, options); + } + } + else { + if (value === void 0) { // delete + return []; // property does not exist, nothing to do + } + const newProperty = `${JSON.stringify(lastSegment)}: ${JSON.stringify(value)}`; + const index = options.getInsertionIndex ? options.getInsertionIndex(parent.children.map(p => p.children[0].value)) : parent.children.length; + let edit; + if (index > 0) { + let previous = parent.children[index - 1]; + edit = { offset: previous.offset + previous.length, length: 0, content: ',' + newProperty }; + } + else if (parent.children.length === 0) { + edit = { offset: parent.offset + 1, length: 0, content: newProperty }; + } + else { + edit = { offset: parent.offset + 1, length: 0, content: newProperty + ',' }; + } + return withFormatting(text, edit, options); + } + } + else if (parent.type === 'array' && typeof lastSegment === 'number' && Array.isArray(parent.children)) { + const insertIndex = lastSegment; + if (insertIndex === -1) { + // Insert + const newProperty = `${JSON.stringify(value)}`; + let edit; + if (parent.children.length === 0) { + edit = { offset: parent.offset + 1, length: 0, content: newProperty }; + } + else { + const previous = parent.children[parent.children.length - 1]; + edit = { offset: previous.offset + previous.length, length: 0, content: ',' + newProperty }; + } + return withFormatting(text, edit, options); + } + else if (value === void 0 && parent.children.length >= 0) { + // Removal + const removalIndex = lastSegment; + const toRemove = parent.children[removalIndex]; + let edit; + if (parent.children.length === 1) { + // only item + edit = { offset: parent.offset + 1, length: parent.length - 2, content: '' }; + } + else if (parent.children.length - 1 === removalIndex) { + // last item + let previous = parent.children[removalIndex - 1]; + let offset = previous.offset + previous.length; + let parentEndOffset = parent.offset + parent.length; + edit = { offset, length: parentEndOffset - 2 - offset, content: '' }; + } + else { + edit = { offset: toRemove.offset, length: parent.children[removalIndex + 1].offset - toRemove.offset, content: '' }; + } + return withFormatting(text, edit, options); + } + else if (value !== void 0) { + let edit; + const newProperty = `${JSON.stringify(value)}`; + if (!options.isArrayInsertion && parent.children.length > lastSegment) { + const toModify = parent.children[lastSegment]; + edit = { offset: toModify.offset, length: toModify.length, content: newProperty }; + } + else if (parent.children.length === 0 || lastSegment === 0) { + edit = { offset: parent.offset + 1, length: 0, content: parent.children.length === 0 ? newProperty : newProperty + ',' }; + } + else { + const index = lastSegment > parent.children.length ? parent.children.length : lastSegment; + const previous = parent.children[index - 1]; + edit = { offset: previous.offset + previous.length, length: 0, content: ',' + newProperty }; + } + return withFormatting(text, edit, options); + } + else { + throw new Error(`Can not ${value === void 0 ? 'remove' : (options.isArrayInsertion ? 'insert' : 'modify')} Array index ${insertIndex} as length is not sufficient`); + } + } + else { + throw new Error(`Can not add ${typeof lastSegment !== 'number' ? 'index' : 'property'} to parent of type ${parent.type}`); + } +} +function withFormatting(text, edit, options) { + if (!options.formattingOptions) { + return [edit]; + } + // apply the edit + let newText = applyEdit(text, edit); + // format the new text + let begin = edit.offset; + let end = edit.offset + edit.content.length; + if (edit.length === 0 || edit.content.length === 0) { // insert or remove + while (begin > 0 && !isEOL(newText, begin - 1)) { + begin--; + } + while (end < newText.length && !isEOL(newText, end)) { + end++; + } + } + const edits = format(newText, { offset: begin, length: end - begin }, { ...options.formattingOptions, keepLines: false }); + // apply the formatting edits and track the begin and end offsets of the changes + for (let i = edits.length - 1; i >= 0; i--) { + const edit = edits[i]; + newText = applyEdit(newText, edit); + begin = Math.min(begin, edit.offset); + end = Math.max(end, edit.offset + edit.length); + end += edit.content.length - edit.length; + } + // create a single edit with all changes + const editLength = text.length - (newText.length - end) - begin; + return [{ offset: begin, length: editLength, content: newText.substring(begin, end) }]; +} +export function applyEdit(text, edit) { + return text.substring(0, edit.offset) + edit.content + text.substring(edit.offset + edit.length); +} +export function isWS(text, offset) { + return '\r\n \t'.indexOf(text.charAt(offset)) !== -1; +} |