diff options
Diffstat (limited to 'tools/node_modules/eslint/node_modules/ajv/lib/compile/util.js')
| -rw-r--r-- | tools/node_modules/eslint/node_modules/ajv/lib/compile/util.js | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/ajv/lib/compile/util.js b/tools/node_modules/eslint/node_modules/ajv/lib/compile/util.js new file mode 100644 index 0000000000..263891c33d --- /dev/null +++ b/tools/node_modules/eslint/node_modules/ajv/lib/compile/util.js @@ -0,0 +1,267 @@ +'use strict'; + + +module.exports = { + copy: copy, + checkDataType: checkDataType, + checkDataTypes: checkDataTypes, + coerceToTypes: coerceToTypes, + toHash: toHash, + getProperty: getProperty, + escapeQuotes: escapeQuotes, + equal: require('fast-deep-equal'), + ucs2length: require('./ucs2length'), + varOccurences: varOccurences, + varReplace: varReplace, + cleanUpCode: cleanUpCode, + finalCleanUpCode: finalCleanUpCode, + schemaHasRules: schemaHasRules, + schemaHasRulesExcept: schemaHasRulesExcept, + toQuotedString: toQuotedString, + getPathExpr: getPathExpr, + getPath: getPath, + getData: getData, + unescapeFragment: unescapeFragment, + unescapeJsonPointer: unescapeJsonPointer, + escapeFragment: escapeFragment, + escapeJsonPointer: escapeJsonPointer +}; + + +function copy(o, to) { + to = to || {}; + for (var key in o) to[key] = o[key]; + return to; +} + + +function checkDataType(dataType, data, negate) { + var EQUAL = negate ? ' !== ' : ' === ' + , AND = negate ? ' || ' : ' && ' + , OK = negate ? '!' : '' + , NOT = negate ? '' : '!'; + switch (dataType) { + case 'null': return data + EQUAL + 'null'; + case 'array': return OK + 'Array.isArray(' + data + ')'; + case 'object': return '(' + OK + data + AND + + 'typeof ' + data + EQUAL + '"object"' + AND + + NOT + 'Array.isArray(' + data + '))'; + case 'integer': return '(typeof ' + data + EQUAL + '"number"' + AND + + NOT + '(' + data + ' % 1)' + + AND + data + EQUAL + data + ')'; + default: return 'typeof ' + data + EQUAL + '"' + dataType + '"'; + } +} + + +function checkDataTypes(dataTypes, data) { + switch (dataTypes.length) { + case 1: return checkDataType(dataTypes[0], data, true); + default: + var code = ''; + var types = toHash(dataTypes); + if (types.array && types.object) { + code = types.null ? '(': '(!' + data + ' || '; + code += 'typeof ' + data + ' !== "object")'; + delete types.null; + delete types.array; + delete types.object; + } + if (types.number) delete types.integer; + for (var t in types) + code += (code ? ' && ' : '' ) + checkDataType(t, data, true); + + return code; + } +} + + +var COERCE_TO_TYPES = toHash([ 'string', 'number', 'integer', 'boolean', 'null' ]); +function coerceToTypes(optionCoerceTypes, dataTypes) { + if (Array.isArray(dataTypes)) { + var types = []; + for (var i=0; i<dataTypes.length; i++) { + var t = dataTypes[i]; + if (COERCE_TO_TYPES[t]) types[types.length] = t; + else if (optionCoerceTypes === 'array' && t === 'array') types[types.length] = t; + } + if (types.length) return types; + } else if (COERCE_TO_TYPES[dataTypes]) { + return [dataTypes]; + } else if (optionCoerceTypes === 'array' && dataTypes === 'array') { + return ['array']; + } +} + + +function toHash(arr) { + var hash = {}; + for (var i=0; i<arr.length; i++) hash[arr[i]] = true; + return hash; +} + + +var IDENTIFIER = /^[a-z$_][a-z$_0-9]*$/i; +var SINGLE_QUOTE = /'|\\/g; +function getProperty(key) { + return typeof key == 'number' + ? '[' + key + ']' + : IDENTIFIER.test(key) + ? '.' + key + : "['" + escapeQuotes(key) + "']"; +} + + +function escapeQuotes(str) { + return str.replace(SINGLE_QUOTE, '\\$&') + .replace(/\n/g, '\\n') + .replace(/\r/g, '\\r') + .replace(/\f/g, '\\f') + .replace(/\t/g, '\\t'); +} + + +function varOccurences(str, dataVar) { + dataVar += '[^0-9]'; + var matches = str.match(new RegExp(dataVar, 'g')); + return matches ? matches.length : 0; +} + + +function varReplace(str, dataVar, expr) { + dataVar += '([^0-9])'; + expr = expr.replace(/\$/g, '$$$$'); + return str.replace(new RegExp(dataVar, 'g'), expr + '$1'); +} + + +var EMPTY_ELSE = /else\s*{\s*}/g + , EMPTY_IF_NO_ELSE = /if\s*\([^)]+\)\s*\{\s*\}(?!\s*else)/g + , EMPTY_IF_WITH_ELSE = /if\s*\(([^)]+)\)\s*\{\s*\}\s*else(?!\s*if)/g; +function cleanUpCode(out) { + return out.replace(EMPTY_ELSE, '') + .replace(EMPTY_IF_NO_ELSE, '') + .replace(EMPTY_IF_WITH_ELSE, 'if (!($1))'); +} + + +var ERRORS_REGEXP = /[^v.]errors/g + , REMOVE_ERRORS = /var errors = 0;|var vErrors = null;|validate.errors = vErrors;/g + , REMOVE_ERRORS_ASYNC = /var errors = 0;|var vErrors = null;/g + , RETURN_VALID = 'return errors === 0;' + , RETURN_TRUE = 'validate.errors = null; return true;' + , RETURN_ASYNC = /if \(errors === 0\) return data;\s*else throw new ValidationError\(vErrors\);/ + , RETURN_DATA_ASYNC = 'return data;' + , ROOTDATA_REGEXP = /[^A-Za-z_$]rootData[^A-Za-z0-9_$]/g + , REMOVE_ROOTDATA = /if \(rootData === undefined\) rootData = data;/; + +function finalCleanUpCode(out, async) { + var matches = out.match(ERRORS_REGEXP); + if (matches && matches.length == 2) { + out = async + ? out.replace(REMOVE_ERRORS_ASYNC, '') + .replace(RETURN_ASYNC, RETURN_DATA_ASYNC) + : out.replace(REMOVE_ERRORS, '') + .replace(RETURN_VALID, RETURN_TRUE); + } + + matches = out.match(ROOTDATA_REGEXP); + if (!matches || matches.length !== 3) return out; + return out.replace(REMOVE_ROOTDATA, ''); +} + + +function schemaHasRules(schema, rules) { + if (typeof schema == 'boolean') return !schema; + for (var key in schema) if (rules[key]) return true; +} + + +function schemaHasRulesExcept(schema, rules, exceptKeyword) { + if (typeof schema == 'boolean') return !schema && exceptKeyword != 'not'; + for (var key in schema) if (key != exceptKeyword && rules[key]) return true; +} + + +function toQuotedString(str) { + return '\'' + escapeQuotes(str) + '\''; +} + + +function getPathExpr(currentPath, expr, jsonPointers, isNumber) { + var path = jsonPointers // false by default + ? '\'/\' + ' + expr + (isNumber ? '' : '.replace(/~/g, \'~0\').replace(/\\//g, \'~1\')') + : (isNumber ? '\'[\' + ' + expr + ' + \']\'' : '\'[\\\'\' + ' + expr + ' + \'\\\']\''); + return joinPaths(currentPath, path); +} + + +function getPath(currentPath, prop, jsonPointers) { + var path = jsonPointers // false by default + ? toQuotedString('/' + escapeJsonPointer(prop)) + : toQuotedString(getProperty(prop)); + return joinPaths(currentPath, path); +} + + +var JSON_POINTER = /^\/(?:[^~]|~0|~1)*$/; +var RELATIVE_JSON_POINTER = /^([0-9]+)(#|\/(?:[^~]|~0|~1)*)?$/; +function getData($data, lvl, paths) { + var up, jsonPointer, data, matches; + if ($data === '') return 'rootData'; + if ($data[0] == '/') { + if (!JSON_POINTER.test($data)) throw new Error('Invalid JSON-pointer: ' + $data); + jsonPointer = $data; + data = 'rootData'; + } else { + matches = $data.match(RELATIVE_JSON_POINTER); + if (!matches) throw new Error('Invalid JSON-pointer: ' + $data); + up = +matches[1]; + jsonPointer = matches[2]; + if (jsonPointer == '#') { + if (up >= lvl) throw new Error('Cannot access property/index ' + up + ' levels up, current level is ' + lvl); + return paths[lvl - up]; + } + + if (up > lvl) throw new Error('Cannot access data ' + up + ' levels up, current level is ' + lvl); + data = 'data' + ((lvl - up) || ''); + if (!jsonPointer) return data; + } + + var expr = data; + var segments = jsonPointer.split('/'); + for (var i=0; i<segments.length; i++) { + var segment = segments[i]; + if (segment) { + data += getProperty(unescapeJsonPointer(segment)); + expr += ' && ' + data; + } + } + return expr; +} + + +function joinPaths (a, b) { + if (a == '""') return b; + return (a + ' + ' + b).replace(/' \+ '/g, ''); +} + + +function unescapeFragment(str) { + return unescapeJsonPointer(decodeURIComponent(str)); +} + + +function escapeFragment(str) { + return encodeURIComponent(escapeJsonPointer(str)); +} + + +function escapeJsonPointer(str) { + return str.replace(/~/g, '~0').replace(/\//g, '~1'); +} + + +function unescapeJsonPointer(str) { + return str.replace(/~1/g, '/').replace(/~0/g, '~'); +} |