@angular/core
Version:
Angular - the core framework
243 lines • 35.7 kB
JavaScript
/**
* @license
* Copyright Google Inc. 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.io/license
*/
import { assertEqual, assertLessThan } from '../../util/assert';
import { bindingUpdated, bindingUpdated2, bindingUpdated3, bindingUpdated4 } from '../bindings';
import { BINDING_INDEX, TVIEW } from '../interfaces/view';
import { getLView } from '../state';
import { NO_CHANGE } from '../tokens';
import { renderStringify } from '../util/misc_utils';
import { storeBindingMetadata } from './shared';
/**
* Create interpolation bindings with a variable number of expressions.
*
* If there are 1 to 8 expressions `interpolation1()` to `interpolation8()` should be used instead.
* Those are faster because there is no need to create an array of expressions and iterate over it.
*
* `values`:
* - has static text at even indexes,
* - has evaluated expressions at odd indexes.
*
* Returns the concatenated string when any of the arguments changes, `NO_CHANGE` otherwise.
*
* @codeGenApi
*/
export function ɵɵinterpolationV(values) {
ngDevMode && assertLessThan(2, values.length, 'should have at least 3 values');
ngDevMode && assertEqual(values.length % 2, 1, 'should have an odd number of values');
var isBindingUpdated = false;
var lView = getLView();
var tData = lView[TVIEW].data;
var bindingIndex = lView[BINDING_INDEX];
if (tData[bindingIndex] == null) {
// 2 is the index of the first static interstitial value (ie. not prefix)
for (var i = 2; i < values.length; i += 2) {
tData[bindingIndex++] = values[i];
}
bindingIndex = lView[BINDING_INDEX];
}
for (var i = 1; i < values.length; i += 2) {
// Check if bindings (odd indexes) have changed
isBindingUpdated = bindingUpdated(lView, bindingIndex++, values[i]) || isBindingUpdated;
}
lView[BINDING_INDEX] = bindingIndex;
storeBindingMetadata(lView, values[0], values[values.length - 1]);
if (!isBindingUpdated) {
return NO_CHANGE;
}
// Build the updated content
var content = values[0];
for (var i = 1; i < values.length; i += 2) {
content += renderStringify(values[i]) + values[i + 1];
}
return content;
}
/**
* Creates an interpolation binding with 1 expression.
*
* @param prefix static value used for concatenation only.
* @param v0 value checked for change.
* @param suffix static value used for concatenation only.
*
* @codeGenApi
*/
export function ɵɵinterpolation1(prefix, v0, suffix) {
var lView = getLView();
var different = bindingUpdated(lView, lView[BINDING_INDEX]++, v0);
storeBindingMetadata(lView, prefix, suffix);
return different ? prefix + renderStringify(v0) + suffix : NO_CHANGE;
}
/**
* Creates an interpolation binding with 2 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation2(prefix, v0, i0, v1, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated2(lView, bindingIndex, v0, v1);
lView[BINDING_INDEX] += 2;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
lView[TVIEW].data[bindingIndex] = i0;
}
return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + suffix : NO_CHANGE;
}
/**
* Creates an interpolation binding with 3 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation3(prefix, v0, i0, v1, i1, v2, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated3(lView, bindingIndex, v0, v1, v2);
lView[BINDING_INDEX] += 3;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
var tData = lView[TVIEW].data;
tData[bindingIndex] = i0;
tData[bindingIndex + 1] = i1;
}
return different ?
prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + suffix :
NO_CHANGE;
}
/**
* Create an interpolation binding with 4 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);
lView[BINDING_INDEX] += 4;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
var tData = lView[TVIEW].data;
tData[bindingIndex] = i0;
tData[bindingIndex + 1] = i1;
tData[bindingIndex + 2] = i2;
}
return different ?
prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +
renderStringify(v3) + suffix :
NO_CHANGE;
}
/**
* Creates an interpolation binding with 5 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);
different = bindingUpdated(lView, bindingIndex + 4, v4) || different;
lView[BINDING_INDEX] += 5;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
var tData = lView[TVIEW].data;
tData[bindingIndex] = i0;
tData[bindingIndex + 1] = i1;
tData[bindingIndex + 2] = i2;
tData[bindingIndex + 3] = i3;
}
return different ?
prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +
renderStringify(v3) + i3 + renderStringify(v4) + suffix :
NO_CHANGE;
}
/**
* Creates an interpolation binding with 6 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);
different = bindingUpdated2(lView, bindingIndex + 4, v4, v5) || different;
lView[BINDING_INDEX] += 6;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
var tData = lView[TVIEW].data;
tData[bindingIndex] = i0;
tData[bindingIndex + 1] = i1;
tData[bindingIndex + 2] = i2;
tData[bindingIndex + 3] = i3;
tData[bindingIndex + 4] = i4;
}
return different ?
prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +
renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + suffix :
NO_CHANGE;
}
/**
* Creates an interpolation binding with 7 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);
different = bindingUpdated3(lView, bindingIndex + 4, v4, v5, v6) || different;
lView[BINDING_INDEX] += 7;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
var tData = lView[TVIEW].data;
tData[bindingIndex] = i0;
tData[bindingIndex + 1] = i1;
tData[bindingIndex + 2] = i2;
tData[bindingIndex + 3] = i3;
tData[bindingIndex + 4] = i4;
tData[bindingIndex + 5] = i5;
}
return different ?
prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +
renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + i5 +
renderStringify(v6) + suffix :
NO_CHANGE;
}
/**
* Creates an interpolation binding with 8 expressions.
*
* @codeGenApi
*/
export function ɵɵinterpolation8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {
var lView = getLView();
var bindingIndex = lView[BINDING_INDEX];
var different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);
different = bindingUpdated4(lView, bindingIndex + 4, v4, v5, v6, v7) || different;
lView[BINDING_INDEX] += 8;
// Only set static strings the first time (data will be null subsequent runs).
var data = storeBindingMetadata(lView, prefix, suffix);
if (data) {
var tData = lView[TVIEW].data;
tData[bindingIndex] = i0;
tData[bindingIndex + 1] = i1;
tData[bindingIndex + 2] = i2;
tData[bindingIndex + 3] = i3;
tData[bindingIndex + 4] = i4;
tData[bindingIndex + 5] = i5;
tData[bindingIndex + 6] = i6;
}
return different ?
prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +
renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + i5 +
renderStringify(v6) + i6 + renderStringify(v7) + suffix :
NO_CHANGE;
}
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* @license\n * Copyright Google Inc. 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 */\n\nimport {assertEqual, assertLessThan} from '../../util/assert';\nimport {bindingUpdated, bindingUpdated2, bindingUpdated3, bindingUpdated4} from '../bindings';\nimport {BINDING_INDEX, TVIEW} from '../interfaces/view';\nimport {getLView} from '../state';\nimport {NO_CHANGE} from '../tokens';\nimport {renderStringify} from '../util/misc_utils';\n\nimport {storeBindingMetadata} from './shared';\n\n\n\n/**\n * Create interpolation bindings with a variable number of expressions.\n *\n * If there are 1 to 8 expressions `interpolation1()` to `interpolation8()` should be used instead.\n * Those are faster because there is no need to create an array of expressions and iterate over it.\n *\n * `values`:\n * - has static text at even indexes,\n * - has evaluated expressions at odd indexes.\n *\n * Returns the concatenated string when any of the arguments changes, `NO_CHANGE` otherwise.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolationV(values: any[]): string|NO_CHANGE {\n  ngDevMode && assertLessThan(2, values.length, 'should have at least 3 values');\n  ngDevMode && assertEqual(values.length % 2, 1, 'should have an odd number of values');\n  let isBindingUpdated = false;\n  const lView = getLView();\n  const tData = lView[TVIEW].data;\n  let bindingIndex = lView[BINDING_INDEX];\n\n  if (tData[bindingIndex] == null) {\n    // 2 is the index of the first static interstitial value (ie. not prefix)\n    for (let i = 2; i < values.length; i += 2) {\n      tData[bindingIndex++] = values[i];\n    }\n    bindingIndex = lView[BINDING_INDEX];\n  }\n\n  for (let i = 1; i < values.length; i += 2) {\n    // Check if bindings (odd indexes) have changed\n    isBindingUpdated = bindingUpdated(lView, bindingIndex++, values[i]) || isBindingUpdated;\n  }\n  lView[BINDING_INDEX] = bindingIndex;\n  storeBindingMetadata(lView, values[0], values[values.length - 1]);\n\n  if (!isBindingUpdated) {\n    return NO_CHANGE;\n  }\n\n  // Build the updated content\n  let content = values[0];\n  for (let i = 1; i < values.length; i += 2) {\n    content += renderStringify(values[i]) + values[i + 1];\n  }\n\n  return content;\n}\n\n/**\n * Creates an interpolation binding with 1 expression.\n *\n * @param prefix static value used for concatenation only.\n * @param v0 value checked for change.\n * @param suffix static value used for concatenation only.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation1(prefix: string, v0: any, suffix: string): string|NO_CHANGE {\n  const lView = getLView();\n  const different = bindingUpdated(lView, lView[BINDING_INDEX]++, v0);\n  storeBindingMetadata(lView, prefix, suffix);\n  return different ? prefix + renderStringify(v0) + suffix : NO_CHANGE;\n}\n\n/**\n * Creates an interpolation binding with 2 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation2(\n    prefix: string, v0: any, i0: string, v1: any, suffix: string): string|NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  const different = bindingUpdated2(lView, bindingIndex, v0, v1);\n  lView[BINDING_INDEX] += 2;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    lView[TVIEW].data[bindingIndex] = i0;\n  }\n\n  return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + suffix : NO_CHANGE;\n}\n\n/**\n * Creates an interpolation binding with 3 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation3(\n    prefix: string, v0: any, i0: string, v1: any, i1: string, v2: any, suffix: string): string|\n    NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  const different = bindingUpdated3(lView, bindingIndex, v0, v1, v2);\n  lView[BINDING_INDEX] += 3;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    const tData = lView[TVIEW].data;\n    tData[bindingIndex] = i0;\n    tData[bindingIndex + 1] = i1;\n  }\n\n  return different ?\n      prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + suffix :\n      NO_CHANGE;\n}\n\n/**\n * Create an interpolation binding with 4 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation4(\n    prefix: string, v0: any, i0: string, v1: any, i1: string, v2: any, i2: string, v3: any,\n    suffix: string): string|NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  const different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n  lView[BINDING_INDEX] += 4;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    const tData = lView[TVIEW].data;\n    tData[bindingIndex] = i0;\n    tData[bindingIndex + 1] = i1;\n    tData[bindingIndex + 2] = i2;\n  }\n\n  return different ?\n      prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n          renderStringify(v3) + suffix :\n      NO_CHANGE;\n}\n\n/**\n * Creates an interpolation binding with 5 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation5(\n    prefix: string, v0: any, i0: string, v1: any, i1: string, v2: any, i2: string, v3: any,\n    i3: string, v4: any, suffix: string): string|NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n  different = bindingUpdated(lView, bindingIndex + 4, v4) || different;\n  lView[BINDING_INDEX] += 5;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    const tData = lView[TVIEW].data;\n    tData[bindingIndex] = i0;\n    tData[bindingIndex + 1] = i1;\n    tData[bindingIndex + 2] = i2;\n    tData[bindingIndex + 3] = i3;\n  }\n\n  return different ?\n      prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n          renderStringify(v3) + i3 + renderStringify(v4) + suffix :\n      NO_CHANGE;\n}\n\n/**\n * Creates an interpolation binding with 6 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation6(\n    prefix: string, v0: any, i0: string, v1: any, i1: string, v2: any, i2: string, v3: any,\n    i3: string, v4: any, i4: string, v5: any, suffix: string): string|NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n  different = bindingUpdated2(lView, bindingIndex + 4, v4, v5) || different;\n  lView[BINDING_INDEX] += 6;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    const tData = lView[TVIEW].data;\n    tData[bindingIndex] = i0;\n    tData[bindingIndex + 1] = i1;\n    tData[bindingIndex + 2] = i2;\n    tData[bindingIndex + 3] = i3;\n    tData[bindingIndex + 4] = i4;\n  }\n\n  return different ?\n      prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n          renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + suffix :\n      NO_CHANGE;\n}\n\n/**\n * Creates an interpolation binding with 7 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation7(\n    prefix: string, v0: any, i0: string, v1: any, i1: string, v2: any, i2: string, v3: any,\n    i3: string, v4: any, i4: string, v5: any, i5: string, v6: any, suffix: string): string|\n    NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n  different = bindingUpdated3(lView, bindingIndex + 4, v4, v5, v6) || different;\n  lView[BINDING_INDEX] += 7;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    const tData = lView[TVIEW].data;\n    tData[bindingIndex] = i0;\n    tData[bindingIndex + 1] = i1;\n    tData[bindingIndex + 2] = i2;\n    tData[bindingIndex + 3] = i3;\n    tData[bindingIndex + 4] = i4;\n    tData[bindingIndex + 5] = i5;\n  }\n\n  return different ?\n      prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n          renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + i5 +\n          renderStringify(v6) + suffix :\n      NO_CHANGE;\n}\n\n/**\n * Creates an interpolation binding with 8 expressions.\n *\n * @codeGenApi\n */\nexport function ɵɵinterpolation8(\n    prefix: string, v0: any, i0: string, v1: any, i1: string, v2: any, i2: string, v3: any,\n    i3: string, v4: any, i4: string, v5: any, i5: string, v6: any, i6: string, v7: any,\n    suffix: string): string|NO_CHANGE {\n  const lView = getLView();\n  const bindingIndex = lView[BINDING_INDEX];\n  let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n  different = bindingUpdated4(lView, bindingIndex + 4, v4, v5, v6, v7) || different;\n  lView[BINDING_INDEX] += 8;\n\n  // Only set static strings the first time (data will be null subsequent runs).\n  const data = storeBindingMetadata(lView, prefix, suffix);\n  if (data) {\n    const tData = lView[TVIEW].data;\n    tData[bindingIndex] = i0;\n    tData[bindingIndex + 1] = i1;\n    tData[bindingIndex + 2] = i2;\n    tData[bindingIndex + 3] = i3;\n    tData[bindingIndex + 4] = i4;\n    tData[bindingIndex + 5] = i5;\n    tData[bindingIndex + 6] = i6;\n  }\n\n  return different ?\n      prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n          renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + i5 +\n          renderStringify(v6) + i6 + renderStringify(v7) + suffix :\n      NO_CHANGE;\n}\n"]}