package.esm2022.src.render3.bindings.mjs Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of core Show documentation
Show all versions of core Show documentation
Angular - the core framework
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
import { assertIndexInRange, assertLessThan, assertNotSame } from '../util/assert';
import { devModeEqual } from '../util/comparison';
import { getExpressionChangedErrorDetails, throwErrorIfNoChangesMode } from './errors';
import { isInCheckNoChangesMode } from './state';
import { NO_CHANGE } from './tokens';
// TODO(misko): consider inlining
/** Updates binding and returns the value. */
export function updateBinding(lView, bindingIndex, value) {
return (lView[bindingIndex] = value);
}
/** Gets the current binding value. */
export function getBinding(lView, bindingIndex) {
ngDevMode && assertIndexInRange(lView, bindingIndex);
ngDevMode &&
assertNotSame(lView[bindingIndex], NO_CHANGE, 'Stored value should never be NO_CHANGE.');
return lView[bindingIndex];
}
/**
* Updates binding if changed, then returns whether it was updated.
*
* This function also checks the `CheckNoChangesMode` and throws if changes are made.
* Some changes (Objects/iterables) during `CheckNoChangesMode` are exempt to comply with VE
* behavior.
*
* @param lView current `LView`
* @param bindingIndex The binding in the `LView` to check
* @param value New value to check against `lView[bindingIndex]`
* @returns `true` if the bindings has changed. (Throws if binding has changed during
* `CheckNoChangesMode`)
*/
export function bindingUpdated(lView, bindingIndex, value) {
ngDevMode && assertNotSame(value, NO_CHANGE, 'Incoming value should never be NO_CHANGE.');
ngDevMode &&
assertLessThan(bindingIndex, lView.length, `Slot should have been initialized to NO_CHANGE`);
const oldValue = lView[bindingIndex];
if (Object.is(oldValue, value)) {
return false;
}
else {
if (ngDevMode && isInCheckNoChangesMode()) {
// View engine didn't report undefined values as changed on the first checkNoChanges pass
// (before the change detection was run).
const oldValueToCompare = oldValue !== NO_CHANGE ? oldValue : undefined;
if (!devModeEqual(oldValueToCompare, value)) {
const details = getExpressionChangedErrorDetails(lView, bindingIndex, oldValueToCompare, value);
throwErrorIfNoChangesMode(oldValue === NO_CHANGE, details.oldValue, details.newValue, details.propName, lView);
}
// There was a change, but the `devModeEqual` decided that the change is exempt from an error.
// For this reason we exit as if no change. The early exit is needed to prevent the changed
// value to be written into `LView` (If we would write the new value that we would not see it
// as change on next CD.)
return false;
}
lView[bindingIndex] = value;
return true;
}
}
/** Updates 2 bindings if changed, then returns whether either was updated. */
export function bindingUpdated2(lView, bindingIndex, exp1, exp2) {
const different = bindingUpdated(lView, bindingIndex, exp1);
return bindingUpdated(lView, bindingIndex + 1, exp2) || different;
}
/** Updates 3 bindings if changed, then returns whether any was updated. */
export function bindingUpdated3(lView, bindingIndex, exp1, exp2, exp3) {
const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);
return bindingUpdated(lView, bindingIndex + 2, exp3) || different;
}
/** Updates 4 bindings if changed, then returns whether any was updated. */
export function bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4) {
const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);
return bindingUpdated2(lView, bindingIndex + 2, exp3, exp4) || different;
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"bindings.js","sourceRoot":"","sources":["../../../../../../../packages/core/src/render3/bindings.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,kBAAkB,EAAE,cAAc,EAAE,aAAa,EAAC,MAAM,gBAAgB,CAAC;AACjF,OAAO,EAAC,YAAY,EAAC,MAAM,oBAAoB,CAAC;AAEhD,OAAO,EAAC,gCAAgC,EAAE,yBAAyB,EAAC,MAAM,UAAU,CAAC;AAErF,OAAO,EAAC,sBAAsB,EAAC,MAAM,SAAS,CAAC;AAC/C,OAAO,EAAC,SAAS,EAAC,MAAM,UAAU,CAAC;AAEnC,iCAAiC;AACjC,6CAA6C;AAC7C,MAAM,UAAU,aAAa,CAAC,KAAY,EAAE,YAAoB,EAAE,KAAU;IAC1E,OAAO,CAAC,KAAK,CAAC,YAAY,CAAC,GAAG,KAAK,CAAC,CAAC;AACvC,CAAC;AAED,sCAAsC;AACtC,MAAM,UAAU,UAAU,CAAC,KAAY,EAAE,YAAoB;IAC3D,SAAS,IAAI,kBAAkB,CAAC,KAAK,EAAE,YAAY,CAAC,CAAC;IACrD,SAAS;QACP,aAAa,CAAC,KAAK,CAAC,YAAY,CAAC,EAAE,SAAS,EAAE,yCAAyC,CAAC,CAAC;IAC3F,OAAO,KAAK,CAAC,YAAY,CAAC,CAAC;AAC7B,CAAC;AAED;;;;;;;;;;;;GAYG;AACH,MAAM,UAAU,cAAc,CAAC,KAAY,EAAE,YAAoB,EAAE,KAAU;IAC3E,SAAS,IAAI,aAAa,CAAC,KAAK,EAAE,SAAS,EAAE,2CAA2C,CAAC,CAAC;IAC1F,SAAS;QACP,cAAc,CAAC,YAAY,EAAE,KAAK,CAAC,MAAM,EAAE,gDAAgD,CAAC,CAAC;IAC/F,MAAM,QAAQ,GAAG,KAAK,CAAC,YAAY,CAAC,CAAC;IAErC,IAAI,MAAM,CAAC,EAAE,CAAC,QAAQ,EAAE,KAAK,CAAC,EAAE,CAAC;QAC/B,OAAO,KAAK,CAAC;IACf,CAAC;SAAM,CAAC;QACN,IAAI,SAAS,IAAI,sBAAsB,EAAE,EAAE,CAAC;YAC1C,yFAAyF;YACzF,yCAAyC;YACzC,MAAM,iBAAiB,GAAG,QAAQ,KAAK,SAAS,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,SAAS,CAAC;YACxE,IAAI,CAAC,YAAY,CAAC,iBAAiB,EAAE,KAAK,CAAC,EAAE,CAAC;gBAC5C,MAAM,OAAO,GAAG,gCAAgC,CAC9C,KAAK,EACL,YAAY,EACZ,iBAAiB,EACjB,KAAK,CACN,CAAC;gBACF,yBAAyB,CACvB,QAAQ,KAAK,SAAS,EACtB,OAAO,CAAC,QAAQ,EAChB,OAAO,CAAC,QAAQ,EAChB,OAAO,CAAC,QAAQ,EAChB,KAAK,CACN,CAAC;YACJ,CAAC;YACD,8FAA8F;YAC9F,2FAA2F;YAC3F,6FAA6F;YAC7F,yBAAyB;YACzB,OAAO,KAAK,CAAC;QACf,CAAC;QACD,KAAK,CAAC,YAAY,CAAC,GAAG,KAAK,CAAC;QAC5B,OAAO,IAAI,CAAC;IACd,CAAC;AACH,CAAC;AAED,8EAA8E;AAC9E,MAAM,UAAU,eAAe,CAAC,KAAY,EAAE,YAAoB,EAAE,IAAS,EAAE,IAAS;IACtF,MAAM,SAAS,GAAG,cAAc,CAAC,KAAK,EAAE,YAAY,EAAE,IAAI,CAAC,CAAC;IAC5D,OAAO,cAAc,CAAC,KAAK,EAAE,YAAY,GAAG,CAAC,EAAE,IAAI,CAAC,IAAI,SAAS,CAAC;AACpE,CAAC;AAED,2EAA2E;AAC3E,MAAM,UAAU,eAAe,CAC7B,KAAY,EACZ,YAAoB,EACpB,IAAS,EACT,IAAS,EACT,IAAS;IAET,MAAM,SAAS,GAAG,eAAe,CAAC,KAAK,EAAE,YAAY,EAAE,IAAI,EAAE,IAAI,CAAC,CAAC;IACnE,OAAO,cAAc,CAAC,KAAK,EAAE,YAAY,GAAG,CAAC,EAAE,IAAI,CAAC,IAAI,SAAS,CAAC;AACpE,CAAC;AAED,2EAA2E;AAC3E,MAAM,UAAU,eAAe,CAC7B,KAAY,EACZ,YAAoB,EACpB,IAAS,EACT,IAAS,EACT,IAAS,EACT,IAAS;IAET,MAAM,SAAS,GAAG,eAAe,CAAC,KAAK,EAAE,YAAY,EAAE,IAAI,EAAE,IAAI,CAAC,CAAC;IACnE,OAAO,eAAe,CAAC,KAAK,EAAE,YAAY,GAAG,CAAC,EAAE,IAAI,EAAE,IAAI,CAAC,IAAI,SAAS,CAAC;AAC3E,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google LLC 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.dev/license\n */\n\nimport {assertIndexInRange, assertLessThan, assertNotSame} from '../util/assert';\nimport {devModeEqual} from '../util/comparison';\n\nimport {getExpressionChangedErrorDetails, throwErrorIfNoChangesMode} from './errors';\nimport {LView} from './interfaces/view';\nimport {isInCheckNoChangesMode} from './state';\nimport {NO_CHANGE} from './tokens';\n\n// TODO(misko): consider inlining\n/** Updates binding and returns the value. */\nexport function updateBinding(lView: LView, bindingIndex: number, value: any): any {\n  return (lView[bindingIndex] = value);\n}\n\n/** Gets the current binding value. */\nexport function getBinding(lView: LView, bindingIndex: number): any {\n  ngDevMode && assertIndexInRange(lView, bindingIndex);\n  ngDevMode &&\n    assertNotSame(lView[bindingIndex], NO_CHANGE, 'Stored value should never be NO_CHANGE.');\n  return lView[bindingIndex];\n}\n\n/**\n * Updates binding if changed, then returns whether it was updated.\n *\n * This function also checks the `CheckNoChangesMode` and throws if changes are made.\n * Some changes (Objects/iterables) during `CheckNoChangesMode` are exempt to comply with VE\n * behavior.\n *\n * @param lView current `LView`\n * @param bindingIndex The binding in the `LView` to check\n * @param value New value to check against `lView[bindingIndex]`\n * @returns `true` if the bindings has changed. (Throws if binding has changed during\n *          `CheckNoChangesMode`)\n */\nexport function bindingUpdated(lView: LView, bindingIndex: number, value: any): boolean {\n  ngDevMode && assertNotSame(value, NO_CHANGE, 'Incoming value should never be NO_CHANGE.');\n  ngDevMode &&\n    assertLessThan(bindingIndex, lView.length, `Slot should have been initialized to NO_CHANGE`);\n  const oldValue = lView[bindingIndex];\n\n  if (Object.is(oldValue, value)) {\n    return false;\n  } else {\n    if (ngDevMode && isInCheckNoChangesMode()) {\n      // View engine didn't report undefined values as changed on the first checkNoChanges pass\n      // (before the change detection was run).\n      const oldValueToCompare = oldValue !== NO_CHANGE ? oldValue : undefined;\n      if (!devModeEqual(oldValueToCompare, value)) {\n        const details = getExpressionChangedErrorDetails(\n          lView,\n          bindingIndex,\n          oldValueToCompare,\n          value,\n        );\n        throwErrorIfNoChangesMode(\n          oldValue === NO_CHANGE,\n          details.oldValue,\n          details.newValue,\n          details.propName,\n          lView,\n        );\n      }\n      // There was a change, but the `devModeEqual` decided that the change is exempt from an error.\n      // For this reason we exit as if no change. The early exit is needed to prevent the changed\n      // value to be written into `LView` (If we would write the new value that we would not see it\n      // as change on next CD.)\n      return false;\n    }\n    lView[bindingIndex] = value;\n    return true;\n  }\n}\n\n/** Updates 2 bindings if changed, then returns whether either was updated. */\nexport function bindingUpdated2(lView: LView, bindingIndex: number, exp1: any, exp2: any): boolean {\n  const different = bindingUpdated(lView, bindingIndex, exp1);\n  return bindingUpdated(lView, bindingIndex + 1, exp2) || different;\n}\n\n/** Updates 3 bindings if changed, then returns whether any was updated. */\nexport function bindingUpdated3(\n  lView: LView,\n  bindingIndex: number,\n  exp1: any,\n  exp2: any,\n  exp3: any,\n): boolean {\n  const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);\n  return bindingUpdated(lView, bindingIndex + 2, exp3) || different;\n}\n\n/** Updates 4 bindings if changed, then returns whether any was updated. */\nexport function bindingUpdated4(\n  lView: LView,\n  bindingIndex: number,\n  exp1: any,\n  exp2: any,\n  exp3: any,\n  exp4: any,\n): boolean {\n  const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);\n  return bindingUpdated2(lView, bindingIndex + 2, exp3, exp4) || different;\n}\n"]}