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ember-legacy-class-transform

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import visitorKeys from '../types/visitor-keys'; import { cannotRemoveNode, cannotReplaceNode, cannotReplaceOrRemoveInKeyHandlerYet } from './errors'; function visitNode(visitor, node) { var handler = visitor[node.type] || visitor.All || null; var result = void 0; if (handler && handler['enter']) { result = handler['enter'].call(null, node); } if (result !== undefined && result !== null) { if (JSON.stringify(node) === JSON.stringify(result)) { result = undefined; } else if (Array.isArray(result)) { return visitArray(visitor, result) || result; } else { return visitNode(visitor, result) || result; } } if (result === undefined) { var keys = visitorKeys[node.type]; for (var i = 0; i < keys.length; i++) { visitKey(visitor, handler, node, keys[i]); } if (handler && handler['exit']) { result = handler['exit'].call(null, node); } } return result; } function visitKey(visitor, handler, node, key) { var value = node[key]; if (!value) { return; } var keyHandler = handler && (handler.keys[key] || handler.keys.All); var result = void 0; if (keyHandler && keyHandler.enter) { result = keyHandler.enter.call(null, node, key); if (result !== undefined) { throw cannotReplaceOrRemoveInKeyHandlerYet(node, key); } } if (Array.isArray(value)) { visitArray(visitor, value); } else { var _result = visitNode(visitor, value); if (_result !== undefined) { assignKey(node, key, _result); } } if (keyHandler && keyHandler.exit) { result = keyHandler.exit.call(null, node, key); if (result !== undefined) { throw cannotReplaceOrRemoveInKeyHandlerYet(node, key); } } } function visitArray(visitor, array) { for (var i = 0; i < array.length; i++) { var result = visitNode(visitor, array[i]); if (result !== undefined) { i += spliceArray(array, i, result) - 1; } } } function assignKey(node, key, result) { if (result === null) { throw cannotRemoveNode(node[key], node, key); } else if (Array.isArray(result)) { if (result.length === 1) { node[key] = result[0]; } else { if (result.length === 0) { throw cannotRemoveNode(node[key], node, key); } else { throw cannotReplaceNode(node[key], node, key); } } } else { node[key] = result; } } function spliceArray(array, index, result) { if (result === null) { array.splice(index, 1); return 0; } else if (Array.isArray(result)) { array.splice.apply(array, [index, 1].concat(result)); return result.length; } else { array.splice(index, 1, result); return 1; } } export default function traverse(node, visitor) { visitNode(normalizeVisitor(visitor), node); } export function normalizeVisitor(visitor) { var normalizedVisitor = {}; for (var type in visitor) { var handler = visitor[type] || visitor.All; var normalizedKeys = {}; if (typeof handler === 'object') { var keys = handler.keys; if (keys) { for (var key in keys) { var keyHandler = keys[key]; if (typeof keyHandler === 'object') { normalizedKeys[key] = { enter: typeof keyHandler.enter === 'function' ? keyHandler.enter : null, exit: typeof keyHandler.exit === 'function' ? keyHandler.exit : null }; } else if (typeof keyHandler === 'function') { normalizedKeys[key] = { enter: keyHandler, exit: null }; } } } normalizedVisitor[type] = { enter: typeof handler.enter === 'function' ? handler.enter : null, exit: typeof handler.exit === 'function' ? handler.exit : null, keys: normalizedKeys }; } else if (typeof handler === 'function') { normalizedVisitor[type] = { enter: handler, exit: null, keys: normalizedKeys }; } } return normalizedVisitor; } //# 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visitorKeys from '../types/visitor-keys';\nimport { cannotRemoveNode, cannotReplaceNode, cannotReplaceOrRemoveInKeyHandlerYet } from './errors';\nfunction visitNode(visitor, node) {\n    let handler = visitor[node.type] || visitor.All || null;\n    let result;\n    if (handler && handler['enter']) {\n        result = handler['enter'].call(null, node);\n    }\n    if (result !== undefined && result !== null) {\n        if (JSON.stringify(node) === JSON.stringify(result)) {\n            result = undefined;\n        } else if (Array.isArray(result)) {\n            return visitArray(visitor, result) || result;\n        } else {\n            return visitNode(visitor, result) || result;\n        }\n    }\n    if (result === undefined) {\n        let keys = visitorKeys[node.type];\n        for (let i = 0; i < keys.length; i++) {\n            visitKey(visitor, handler, node, keys[i]);\n        }\n        if (handler && handler['exit']) {\n            result = handler['exit'].call(null, node);\n        }\n    }\n    return result;\n}\nfunction visitKey(visitor, handler, node, key) {\n    let value = node[key];\n    if (!value) {\n        return;\n    }\n    let keyHandler = handler && (handler.keys[key] || handler.keys.All);\n    let result;\n    if (keyHandler && keyHandler.enter) {\n        result = keyHandler.enter.call(null, node, key);\n        if (result !== undefined) {\n            throw cannotReplaceOrRemoveInKeyHandlerYet(node, key);\n        }\n    }\n    if (Array.isArray(value)) {\n        visitArray(visitor, value);\n    } else {\n        let result = visitNode(visitor, value);\n        if (result !== undefined) {\n            assignKey(node, key, result);\n        }\n    }\n    if (keyHandler && keyHandler.exit) {\n        result = keyHandler.exit.call(null, node, key);\n        if (result !== undefined) {\n            throw cannotReplaceOrRemoveInKeyHandlerYet(node, key);\n        }\n    }\n}\nfunction visitArray(visitor, array) {\n    for (let i = 0; i < array.length; i++) {\n        let result = visitNode(visitor, array[i]);\n        if (result !== undefined) {\n            i += spliceArray(array, i, result) - 1;\n        }\n    }\n}\nfunction assignKey(node, key, result) {\n    if (result === null) {\n        throw cannotRemoveNode(node[key], node, key);\n    } else if (Array.isArray(result)) {\n        if (result.length === 1) {\n            node[key] = result[0];\n        } else {\n            if (result.length === 0) {\n                throw cannotRemoveNode(node[key], node, key);\n            } else {\n                throw cannotReplaceNode(node[key], node, key);\n            }\n        }\n    } else {\n        node[key] = result;\n    }\n}\nfunction spliceArray(array, index, result) {\n    if (result === null) {\n        array.splice(index, 1);\n        return 0;\n    } else if (Array.isArray(result)) {\n        array.splice(index, 1, ...result);\n        return result.length;\n    } else {\n        array.splice(index, 1, result);\n        return 1;\n    }\n}\nexport default function traverse(node, visitor) {\n    visitNode(normalizeVisitor(visitor), node);\n}\nexport function normalizeVisitor(visitor) {\n    let normalizedVisitor = {};\n    for (let type in visitor) {\n        let handler = visitor[type] || visitor.All;\n        let normalizedKeys = {};\n        if (typeof handler === 'object') {\n            let keys = handler.keys;\n            if (keys) {\n                for (let key in keys) {\n                    let keyHandler = keys[key];\n                    if (typeof keyHandler === 'object') {\n                        normalizedKeys[key] = {\n                            enter: typeof keyHandler.enter === 'function' ? keyHandler.enter : null,\n                            exit: typeof keyHandler.exit === 'function' ? keyHandler.exit : null\n                        };\n                    } else if (typeof keyHandler === 'function') {\n                        normalizedKeys[key] = {\n                            enter: keyHandler,\n                            exit: null\n                        };\n                    }\n                }\n            }\n            normalizedVisitor[type] = {\n                enter: typeof handler.enter === 'function' ? handler.enter : null,\n                exit: typeof handler.exit === 'function' ? handler.exit : null,\n                keys: normalizedKeys\n            };\n        } else if (typeof handler === 'function') {\n            normalizedVisitor[type] = {\n                enter: handler,\n                exit: null,\n                keys: normalizedKeys\n            };\n        }\n    }\n    return normalizedVisitor;\n}"]}