@tensorflow/tfjs-layers
Version:
TensorFlow layers API in JavaScript
124 lines • 14.9 kB
JavaScript
/**
* @license
* Copyright 2018 Google LLC
*
* Use of this source code is governed by an MIT-style
* license that can be found in the LICENSE file or at
* https://opensource.org/licenses/MIT.
* =============================================================================
*/
import * as generic_utils from '../utils/generic_utils';
// tslint:enable
/**
* Test whether a value in an array is the name of a LayersModel or Layer.
* @param key The key name that the value is found under. Note that the key
* may not be at the level immediately above the value, if the value is in a
* nested array.
* @param index Index of the value in the Array that it is found in.
* @param value The value object.
* @returns A boolean indicating whether value is a name.
*/
function isArrayItemInputOrOutputName(key, index, value) {
return (key === 'inboundNodes' || key === 'outputLayers' ||
key === 'inputLayers') &&
index === 0 && typeof value === 'string';
}
/**
* Convert a Pythonic config object to TypeScript config object.
* @param pythonicConfig The config object to convert.
* @param key Optional key name of the object being converted.
* @returns Result of the conversion.
*/
export function convertPythonicToTs(pythonicConfig, key) {
if (pythonicConfig === null) {
return null;
}
else if (typeof pythonicConfig === 'string') {
return generic_utils.toCamelCase(pythonicConfig);
}
else if ((typeof pythonicConfig === 'number') ||
(typeof pythonicConfig === 'boolean')) {
return pythonicConfig;
}
else if (pythonicConfig instanceof Array) {
const tsArray = [];
const arrayLength = pythonicConfig.length;
for (let i = 0; i < arrayLength; ++i) {
const item = pythonicConfig[i];
if (isArrayItemInputOrOutputName(key, i, item)) {
tsArray.push(item);
}
else {
tsArray.push(convertPythonicToTs(item, key));
}
}
return tsArray;
}
else {
const tsDict = {};
for (const pythonicKey of Object.keys(pythonicConfig)) {
const pythonicValue = pythonicConfig[pythonicKey];
if (pythonicKey === 'name' && typeof pythonicValue === 'string') {
// Special case the 'name' key with a string value. Name values, such as
// the names of LayersModel and Layer instances, should not undergo the
// camel-case conversion.
tsDict[pythonicKey] = pythonicValue;
}
else {
const tsKey = generic_utils.toCamelCase(pythonicKey);
tsDict[tsKey] = convertPythonicToTs(pythonicValue, tsKey);
}
}
return tsDict;
}
}
/**
* Convert a TypeScript config object to Python config object.
* @param tsConfig The config object to convert.
* @param key Optional key name of the object being converted.
* @returns Result of the conversion.
*/
export function convertTsToPythonic(tsConfig, key) {
if (tsConfig === null || tsConfig === undefined) {
return null;
}
else if (typeof tsConfig === 'string') {
return generic_utils.toSnakeCase(tsConfig);
}
else if ((typeof tsConfig === 'number') || (typeof tsConfig === 'boolean')) {
return tsConfig;
}
else if (tsConfig instanceof Array) {
const pyArray = [];
const arrayLength = tsConfig.length;
for (let i = 0; i < arrayLength; ++i) {
const item = tsConfig[i];
if (isArrayItemInputOrOutputName(key, i, item)) {
pyArray.push(item);
}
else {
pyArray.push(convertTsToPythonic(item, key));
}
}
return pyArray;
}
else {
const pyDict = {};
for (const tsKey of Object.keys(tsConfig)) {
const tsValue = tsConfig[tsKey];
const pyKey = generic_utils.toSnakeCase(tsKey);
if ((tsKey === 'name' || tsKey === 'className') &&
typeof tsValue === 'string') {
// Special case the 'name' key with a string value. Name values, such as
// the names of LayersModel and Layer instances, should not undergo the
// snake-case conversion.
pyDict[pyKey] = tsValue;
}
else {
pyDict[pyKey] = convertTsToPythonic(tsValue, tsKey);
}
}
return pyDict;
}
}
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Note that the key\n *   may not be at the level immediately above the value, if the value is in a\n *   nested array.\n * @param index Index of the value in the Array that it is found in.\n * @param value The value object.\n * @returns A boolean indicating whether value is a name.\n */\nfunction isArrayItemInputOrOutputName<T>(\n    key: string, index: number, value: T): boolean {\n  return (key === 'inboundNodes' || key === 'outputLayers' ||\n          key === 'inputLayers') &&\n      index === 0 && typeof value === 'string';\n}\n\n/**\n * Convert a Pythonic config object to TypeScript config object.\n * @param pythonicConfig The config object to convert.\n * @param key Optional key name of the object being converted.\n * @returns Result of the conversion.\n */\nexport function convertPythonicToTs(\n    pythonicConfig: PyJsonValue, key?: string): serialization.ConfigDictValue {\n  if (pythonicConfig === null) {\n    return null;\n  } else if (typeof pythonicConfig === 'string') {\n    return generic_utils.toCamelCase(pythonicConfig);\n  } else if (\n      (typeof pythonicConfig === 'number') ||\n      (typeof pythonicConfig === 'boolean')) {\n    return pythonicConfig;\n  } else if (pythonicConfig instanceof Array) {\n    const tsArray = [];\n    const arrayLength = pythonicConfig.length;\n    for (let i = 0; i < arrayLength; ++i) {\n      const item = pythonicConfig[i];\n      if (isArrayItemInputOrOutputName(key, i, item)) {\n        tsArray.push(item);\n      } else {\n        tsArray.push(convertPythonicToTs(item, key));\n      }\n    }\n    return tsArray;\n  } else {\n    const tsDict: serialization.ConfigDict = {};\n    for (const pythonicKey of Object.keys(pythonicConfig)) {\n      const pythonicValue = pythonicConfig[pythonicKey];\n      if (pythonicKey === 'name' && typeof pythonicValue === 'string') {\n        // Special case the 'name' key with a string value. Name values, such as\n        // the names of LayersModel and Layer instances, should not undergo the\n        // camel-case conversion.\n        tsDict[pythonicKey] = pythonicValue;\n      } else {\n        const tsKey = generic_utils.toCamelCase(pythonicKey);\n        tsDict[tsKey] = convertPythonicToTs(pythonicValue, tsKey);\n      }\n    }\n    return tsDict;\n  }\n}\n\n/**\n * Convert a TypeScript config object to Python config object.\n * @param tsConfig The config object to convert.\n * @param key Optional key name of the object being converted.\n * @returns Result of the conversion.\n */\nexport function convertTsToPythonic(\n    tsConfig: serialization.ConfigDictValue, key?: string): PyJsonValue {\n  if (tsConfig === null || tsConfig === undefined) {\n    return null;\n  } else if (typeof tsConfig === 'string') {\n    return generic_utils.toSnakeCase(tsConfig);\n  } else if (\n      (typeof tsConfig === 'number') || (typeof tsConfig === 'boolean')) {\n    return tsConfig;\n  } else if (tsConfig instanceof Array) {\n    const pyArray = [];\n    const arrayLength = tsConfig.length;\n    for (let i = 0; i < arrayLength; ++i) {\n      const item = tsConfig[i];\n      if (isArrayItemInputOrOutputName(key, i, item)) {\n        pyArray.push(item);\n      } else {\n        pyArray.push(convertTsToPythonic(item, key));\n      }\n    }\n    return pyArray;\n  } else {\n    const pyDict: serialization.ConfigDict = {};\n    for (const tsKey of Object.keys(tsConfig)) {\n      const tsValue = tsConfig[tsKey];\n      const pyKey = generic_utils.toSnakeCase(tsKey);\n      if ((tsKey === 'name' || tsKey === 'className') &&\n          typeof tsValue === 'string') {\n        // Special case the 'name' key with a string value. Name values, such as\n        // the names of LayersModel and Layer instances, should not undergo the\n        // snake-case conversion.\n        pyDict[pyKey] = tsValue;\n      } else {\n        pyDict[pyKey] = convertTsToPythonic(tsValue, tsKey);\n      }\n    }\n    return pyDict;\n  }\n}\n"]}