@angular/core
Version:
Angular - the core framework
146 lines • 16.5 kB
JavaScript
/**
* @fileoverview added by tsickle
* Generated from: packages/core/src/render3/errors.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { stringify } from '../util/stringify';
import { TVIEW } from './interfaces/view';
import { INTERPOLATION_DELIMITER } from './util/misc_utils';
/**
* Called when directives inject each other (creating a circular dependency)
* @param {?} token
* @return {?}
*/
export function throwCyclicDependencyError(token) {
throw new Error(`Cannot instantiate cyclic dependency! ${token}`);
}
/**
* Called when there are multiple component selectors that match a given node
* @param {?} tNode
* @return {?}
*/
export function throwMultipleComponentError(tNode) {
throw new Error(`Multiple components match node with tagname ${tNode.tagName}`);
}
/**
* @return {?}
*/
export function throwMixedMultiProviderError() {
throw new Error(`Cannot mix multi providers and regular providers`);
}
/**
* @param {?=} ngModuleType
* @param {?=} providers
* @param {?=} provider
* @return {?}
*/
export function throwInvalidProviderError(ngModuleType, providers, provider) {
/** @type {?} */
let ngModuleDetail = '';
if (ngModuleType && providers) {
/** @type {?} */
const providerDetail = providers.map((/**
* @param {?} v
* @return {?}
*/
v => v == provider ? '?' + provider + '?' : '...'));
ngModuleDetail =
` - only instances of Provider and Type are allowed, got: [${providerDetail.join(', ')}]`;
}
throw new Error(`Invalid provider for the NgModule '${stringify(ngModuleType)}'` + ngModuleDetail);
}
/**
* Throws an ExpressionChangedAfterChecked error if checkNoChanges mode is on.
* @param {?} creationMode
* @param {?} oldValue
* @param {?} currValue
* @param {?=} propName
* @return {?}
*/
export function throwErrorIfNoChangesMode(creationMode, oldValue, currValue, propName) {
/** @type {?} */
const field = propName ? ` for '${propName}'` : '';
/** @type {?} */
let msg = `ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value${field}: '${oldValue}'. Current value: '${currValue}'.`;
if (creationMode) {
msg +=
` It seems like the view has been created after its parent and its children have been dirty checked.` +
` Has it been created in a change detection hook?`;
}
// TODO: include debug context, see `viewDebugError` function in
// `packages/core/src/view/errors.ts` for reference.
throw new Error(msg);
}
/**
* @param {?} lView
* @param {?} rootIndex
* @param {?} expressionIndex
* @param {?} meta
* @param {?} changedValue
* @return {?}
*/
function constructDetailsForInterpolation(lView, rootIndex, expressionIndex, meta, changedValue) {
const [propName, prefix, ...chunks] = meta.split(INTERPOLATION_DELIMITER);
/** @type {?} */
let oldValue = prefix;
/** @type {?} */
let newValue = prefix;
for (let i = 0; i < chunks.length; i++) {
/** @type {?} */
const slotIdx = rootIndex + i;
oldValue += `${lView[slotIdx]}${chunks[i]}`;
newValue += `${slotIdx === expressionIndex ? changedValue : lView[slotIdx]}${chunks[i]}`;
}
return { propName, oldValue, newValue };
}
/**
* Constructs an object that contains details for the ExpressionChangedAfterItHasBeenCheckedError:
* - property name (for property bindings or interpolations)
* - old and new values, enriched using information from metadata
*
* More information on the metadata storage format can be found in `storePropertyBindingMetadata`
* function description.
* @param {?} lView
* @param {?} bindingIndex
* @param {?} oldValue
* @param {?} newValue
* @return {?}
*/
export function getExpressionChangedErrorDetails(lView, bindingIndex, oldValue, newValue) {
/** @type {?} */
const tData = lView[TVIEW].data;
/** @type {?} */
const metadata = tData[bindingIndex];
if (typeof metadata === 'string') {
// metadata for property interpolation
if (metadata.indexOf(INTERPOLATION_DELIMITER) > -1) {
return constructDetailsForInterpolation(lView, bindingIndex, bindingIndex, metadata, newValue);
}
// metadata for property binding
return { propName: metadata, oldValue, newValue };
}
// metadata is not available for this expression, check if this expression is a part of the
// property interpolation by going from the current binding index left and look for a string that
// contains INTERPOLATION_DELIMITER, the layout in tView.data for this case will look like this:
// [..., 'id�Prefix � and � suffix', null, null, null, ...]
if (metadata === null) {
/** @type {?} */
let idx = bindingIndex - 1;
while (typeof tData[idx] !== 'string' && tData[idx + 1] === null) {
idx--;
}
/** @type {?} */
const meta = tData[idx];
if (typeof meta === 'string') {
/** @type {?} */
const matches = meta.match(new RegExp(INTERPOLATION_DELIMITER, 'g'));
// first interpolation delimiter separates property name from interpolation parts (in case of
// property interpolations), so we subtract one from total number of found delimiters
if (matches && (matches.length - 1) > bindingIndex - idx) {
return constructDetailsForInterpolation(lView, idx, bindingIndex, meta, newValue);
}
}
}
return { propName: undefined, oldValue, newValue };
}
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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport {InjectorType} from '../di/interface/defs';\nimport {stringify} from '../util/stringify';\n\nimport {TNode} from './interfaces/node';\nimport {LView, TVIEW} from './interfaces/view';\nimport {INTERPOLATION_DELIMITER} from './util/misc_utils';\n\n\n\n/** Called when directives inject each other (creating a circular dependency) */\nexport function throwCyclicDependencyError(token: any): never {\n  throw new Error(`Cannot instantiate cyclic dependency! ${token}`);\n}\n\n/** Called when there are multiple component selectors that match a given node */\nexport function throwMultipleComponentError(tNode: TNode): never {\n  throw new Error(`Multiple components match node with tagname ${tNode.tagName}`);\n}\n\nexport function throwMixedMultiProviderError() {\n  throw new Error(`Cannot mix multi providers and regular providers`);\n}\n\nexport function throwInvalidProviderError(\n    ngModuleType?: InjectorType<any>, providers?: any[], provider?: any) {\n  let ngModuleDetail = '';\n  if (ngModuleType && providers) {\n    const providerDetail = providers.map(v => v == provider ? '?' + provider + '?' : '...');\n    ngModuleDetail =\n        ` - only instances of Provider and Type are allowed, got: [${providerDetail.join(', ')}]`;\n  }\n\n  throw new Error(\n      `Invalid provider for the NgModule '${stringify(ngModuleType)}'` + ngModuleDetail);\n}\n\n/** Throws an ExpressionChangedAfterChecked error if checkNoChanges mode is on. */\nexport function throwErrorIfNoChangesMode(\n    creationMode: boolean, oldValue: any, currValue: any, propName?: string): never|void {\n  const field = propName ? ` for '${propName}'` : '';\n  let msg =\n      `ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value${\n          field}: '${oldValue}'. Current value: '${currValue}'.`;\n  if (creationMode) {\n    msg +=\n        ` It seems like the view has been created after its parent and its children have been dirty checked.` +\n        ` Has it been created in a change detection hook?`;\n  }\n  // TODO: include debug context, see `viewDebugError` function in\n  // `packages/core/src/view/errors.ts` for reference.\n  throw new Error(msg);\n}\n\nfunction constructDetailsForInterpolation(\n    lView: LView, rootIndex: number, expressionIndex: number, meta: string, changedValue: any) {\n  const [propName, prefix, ...chunks] = meta.split(INTERPOLATION_DELIMITER);\n  let oldValue = prefix, newValue = prefix;\n  for (let i = 0; i < chunks.length; i++) {\n    const slotIdx = rootIndex + i;\n    oldValue += `${lView[slotIdx]}${chunks[i]}`;\n    newValue += `${slotIdx === expressionIndex ? changedValue : lView[slotIdx]}${chunks[i]}`;\n  }\n  return {propName, oldValue, newValue};\n}\n\n/**\n * Constructs an object that contains details for the ExpressionChangedAfterItHasBeenCheckedError:\n * - property name (for property bindings or interpolations)\n * - old and new values, enriched using information from metadata\n *\n * More information on the metadata storage format can be found in `storePropertyBindingMetadata`\n * function description.\n */\nexport function getExpressionChangedErrorDetails(\n    lView: LView, bindingIndex: number, oldValue: any,\n    newValue: any): {propName?: string, oldValue: any, newValue: any} {\n  const tData = lView[TVIEW].data;\n  const metadata = tData[bindingIndex];\n\n  if (typeof metadata === 'string') {\n    // metadata for property interpolation\n    if (metadata.indexOf(INTERPOLATION_DELIMITER) > -1) {\n      return constructDetailsForInterpolation(\n          lView, bindingIndex, bindingIndex, metadata, newValue);\n    }\n    // metadata for property binding\n    return {propName: metadata, oldValue, newValue};\n  }\n\n  // metadata is not available for this expression, check if this expression is a part of the\n  // property interpolation by going from the current binding index left and look for a string that\n  // contains INTERPOLATION_DELIMITER, the layout in tView.data for this case will look like this:\n  // [..., 'id�Prefix � and � suffix', null, null, null, ...]\n  if (metadata === null) {\n    let idx = bindingIndex - 1;\n    while (typeof tData[idx] !== 'string' && tData[idx + 1] === null) {\n      idx--;\n    }\n    const meta = tData[idx];\n    if (typeof meta === 'string') {\n      const matches = meta.match(new RegExp(INTERPOLATION_DELIMITER, 'g'));\n      // first interpolation delimiter separates property name from interpolation parts (in case of\n      // property interpolations), so we subtract one from total number of found delimiters\n      if (matches && (matches.length - 1) > bindingIndex - idx) {\n        return constructDetailsForInterpolation(lView, idx, bindingIndex, meta, newValue);\n      }\n    }\n  }\n  return {propName: undefined, oldValue, newValue};\n}"]}