@angular/core
Version:
Angular - the core framework
220 lines • 27.2 kB
JavaScript
/**
* @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.io/license
*/
import { newArray } from '../util/array_utils';
import { asPureExpressionData } from './types';
import { calcBindingFlags, checkAndUpdateBinding } from './util';
export function purePipeDef(checkIndex, argCount) {
// argCount + 1 to include the pipe as first arg
return _pureExpressionDef(128 /* TypePurePipe */, checkIndex, newArray(argCount + 1));
}
export function pureArrayDef(checkIndex, argCount) {
return _pureExpressionDef(32 /* TypePureArray */, checkIndex, newArray(argCount));
}
export function pureObjectDef(checkIndex, propToIndex) {
const keys = Object.keys(propToIndex);
const nbKeys = keys.length;
const propertyNames = [];
for (let i = 0; i < nbKeys; i++) {
const key = keys[i];
const index = propToIndex[key];
propertyNames.push(key);
}
return _pureExpressionDef(64 /* TypePureObject */, checkIndex, propertyNames);
}
function _pureExpressionDef(flags, checkIndex, propertyNames) {
const bindings = [];
for (let i = 0; i < propertyNames.length; i++) {
const prop = propertyNames[i];
bindings.push({
flags: 8 /* TypeProperty */,
name: prop,
ns: null,
nonMinifiedName: prop,
securityContext: null,
suffix: null
});
}
return {
// will bet set by the view definition
nodeIndex: -1,
parent: null,
renderParent: null,
bindingIndex: -1,
outputIndex: -1,
// regular values
checkIndex,
flags,
childFlags: 0,
directChildFlags: 0,
childMatchedQueries: 0,
matchedQueries: {},
matchedQueryIds: 0,
references: {},
ngContentIndex: -1,
childCount: 0,
bindings,
bindingFlags: calcBindingFlags(bindings),
outputs: [],
element: null,
provider: null,
text: null,
query: null,
ngContent: null
};
}
export function createPureExpression(view, def) {
return { value: undefined };
}
export function checkAndUpdatePureExpressionInline(view, def, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {
const bindings = def.bindings;
let changed = false;
const bindLen = bindings.length;
if (bindLen > 0 && checkAndUpdateBinding(view, def, 0, v0))
changed = true;
if (bindLen > 1 && checkAndUpdateBinding(view, def, 1, v1))
changed = true;
if (bindLen > 2 && checkAndUpdateBinding(view, def, 2, v2))
changed = true;
if (bindLen > 3 && checkAndUpdateBinding(view, def, 3, v3))
changed = true;
if (bindLen > 4 && checkAndUpdateBinding(view, def, 4, v4))
changed = true;
if (bindLen > 5 && checkAndUpdateBinding(view, def, 5, v5))
changed = true;
if (bindLen > 6 && checkAndUpdateBinding(view, def, 6, v6))
changed = true;
if (bindLen > 7 && checkAndUpdateBinding(view, def, 7, v7))
changed = true;
if (bindLen > 8 && checkAndUpdateBinding(view, def, 8, v8))
changed = true;
if (bindLen > 9 && checkAndUpdateBinding(view, def, 9, v9))
changed = true;
if (changed) {
const data = asPureExpressionData(view, def.nodeIndex);
let value;
switch (def.flags & 201347067 /* Types */) {
case 32 /* TypePureArray */:
value = [];
if (bindLen > 0)
value.push(v0);
if (bindLen > 1)
value.push(v1);
if (bindLen > 2)
value.push(v2);
if (bindLen > 3)
value.push(v3);
if (bindLen > 4)
value.push(v4);
if (bindLen > 5)
value.push(v5);
if (bindLen > 6)
value.push(v6);
if (bindLen > 7)
value.push(v7);
if (bindLen > 8)
value.push(v8);
if (bindLen > 9)
value.push(v9);
break;
case 64 /* TypePureObject */:
value = {};
if (bindLen > 0)
value[bindings[0].name] = v0;
if (bindLen > 1)
value[bindings[1].name] = v1;
if (bindLen > 2)
value[bindings[2].name] = v2;
if (bindLen > 3)
value[bindings[3].name] = v3;
if (bindLen > 4)
value[bindings[4].name] = v4;
if (bindLen > 5)
value[bindings[5].name] = v5;
if (bindLen > 6)
value[bindings[6].name] = v6;
if (bindLen > 7)
value[bindings[7].name] = v7;
if (bindLen > 8)
value[bindings[8].name] = v8;
if (bindLen > 9)
value[bindings[9].name] = v9;
break;
case 128 /* TypePurePipe */:
const pipe = v0;
switch (bindLen) {
case 1:
value = pipe.transform(v0);
break;
case 2:
value = pipe.transform(v1);
break;
case 3:
value = pipe.transform(v1, v2);
break;
case 4:
value = pipe.transform(v1, v2, v3);
break;
case 5:
value = pipe.transform(v1, v2, v3, v4);
break;
case 6:
value = pipe.transform(v1, v2, v3, v4, v5);
break;
case 7:
value = pipe.transform(v1, v2, v3, v4, v5, v6);
break;
case 8:
value = pipe.transform(v1, v2, v3, v4, v5, v6, v7);
break;
case 9:
value = pipe.transform(v1, v2, v3, v4, v5, v6, v7, v8);
break;
case 10:
value = pipe.transform(v1, v2, v3, v4, v5, v6, v7, v8, v9);
break;
}
break;
}
data.value = value;
}
return changed;
}
export function checkAndUpdatePureExpressionDynamic(view, def, values) {
const bindings = def.bindings;
let changed = false;
for (let i = 0; i < values.length; i++) {
// Note: We need to loop over all values, so that
// the old values are updates as well!
if (checkAndUpdateBinding(view, def, i, values[i])) {
changed = true;
}
}
if (changed) {
const data = asPureExpressionData(view, def.nodeIndex);
let value;
switch (def.flags & 201347067 /* Types */) {
case 32 /* TypePureArray */:
value = values;
break;
case 64 /* TypePureObject */:
value = {};
for (let i = 0; i < values.length; i++) {
value[bindings[i].name] = values[i];
}
break;
case 128 /* TypePurePipe */:
const pipe = values[0];
const params = values.slice(1);
value = pipe.transform(...params);
break;
}
data.value = value;
}
return changed;
}
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* @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.io/license\n */\n\nimport {newArray} from '../util/array_utils';\n\nimport {asPureExpressionData, BindingDef, BindingFlags, NodeDef, NodeFlags, PureExpressionData, ViewData} from './types';\nimport {calcBindingFlags, checkAndUpdateBinding} from './util';\n\nexport function purePipeDef(checkIndex: number, argCount: number): NodeDef {\n  // argCount + 1 to include the pipe as first arg\n  return _pureExpressionDef(NodeFlags.TypePurePipe, checkIndex, newArray(argCount + 1));\n}\n\nexport function pureArrayDef(checkIndex: number, argCount: number): NodeDef {\n  return _pureExpressionDef(NodeFlags.TypePureArray, checkIndex, newArray(argCount));\n}\n\nexport function pureObjectDef(checkIndex: number, propToIndex: {[p: string]: number}): NodeDef {\n  const keys = Object.keys(propToIndex);\n  const nbKeys = keys.length;\n  const propertyNames = [];\n  for (let i = 0; i < nbKeys; i++) {\n    const key = keys[i];\n    const index = propToIndex[key];\n    propertyNames.push(key);\n  }\n\n  return _pureExpressionDef(NodeFlags.TypePureObject, checkIndex, propertyNames);\n}\n\nfunction _pureExpressionDef(\n    flags: NodeFlags, checkIndex: number, propertyNames: string[]): NodeDef {\n  const bindings: BindingDef[] = [];\n  for (let i = 0; i < propertyNames.length; i++) {\n    const prop = propertyNames[i];\n    bindings.push({\n      flags: BindingFlags.TypeProperty,\n      name: prop,\n      ns: null,\n      nonMinifiedName: prop,\n      securityContext: null,\n      suffix: null\n    });\n  }\n  return {\n    // will bet set by the view definition\n    nodeIndex: -1,\n    parent: null,\n    renderParent: null,\n    bindingIndex: -1,\n    outputIndex: -1,\n    // regular values\n    checkIndex,\n    flags,\n    childFlags: 0,\n    directChildFlags: 0,\n    childMatchedQueries: 0,\n    matchedQueries: {},\n    matchedQueryIds: 0,\n    references: {},\n    ngContentIndex: -1,\n    childCount: 0,\n    bindings,\n    bindingFlags: calcBindingFlags(bindings),\n    outputs: [],\n    element: null,\n    provider: null,\n    text: null,\n    query: null,\n    ngContent: null\n  };\n}\n\nexport function createPureExpression(view: ViewData, def: NodeDef): PureExpressionData {\n  return {value: undefined};\n}\n\nexport function checkAndUpdatePureExpressionInline(\n    view: ViewData, def: NodeDef, v0: any, v1: any, v2: any, v3: any, v4: any, v5: any, v6: any,\n    v7: any, v8: any, v9: any): boolean {\n  const bindings = def.bindings;\n  let changed = false;\n  const bindLen = bindings.length;\n  if (bindLen > 0 && checkAndUpdateBinding(view, def, 0, v0)) changed = true;\n  if (bindLen > 1 && checkAndUpdateBinding(view, def, 1, v1)) changed = true;\n  if (bindLen > 2 && checkAndUpdateBinding(view, def, 2, v2)) changed = true;\n  if (bindLen > 3 && checkAndUpdateBinding(view, def, 3, v3)) changed = true;\n  if (bindLen > 4 && checkAndUpdateBinding(view, def, 4, v4)) changed = true;\n  if (bindLen > 5 && checkAndUpdateBinding(view, def, 5, v5)) changed = true;\n  if (bindLen > 6 && checkAndUpdateBinding(view, def, 6, v6)) changed = true;\n  if (bindLen > 7 && checkAndUpdateBinding(view, def, 7, v7)) changed = true;\n  if (bindLen > 8 && checkAndUpdateBinding(view, def, 8, v8)) changed = true;\n  if (bindLen > 9 && checkAndUpdateBinding(view, def, 9, v9)) changed = true;\n\n  if (changed) {\n    const data = asPureExpressionData(view, def.nodeIndex);\n    let value: any;\n    switch (def.flags & NodeFlags.Types) {\n      case NodeFlags.TypePureArray:\n        value = [];\n        if (bindLen > 0) value.push(v0);\n        if (bindLen > 1) value.push(v1);\n        if (bindLen > 2) value.push(v2);\n        if (bindLen > 3) value.push(v3);\n        if (bindLen > 4) value.push(v4);\n        if (bindLen > 5) value.push(v5);\n        if (bindLen > 6) value.push(v6);\n        if (bindLen > 7) value.push(v7);\n        if (bindLen > 8) value.push(v8);\n        if (bindLen > 9) value.push(v9);\n        break;\n      case NodeFlags.TypePureObject:\n        value = {};\n        if (bindLen > 0) value[bindings[0].name!] = v0;\n        if (bindLen > 1) value[bindings[1].name!] = v1;\n        if (bindLen > 2) value[bindings[2].name!] = v2;\n        if (bindLen > 3) value[bindings[3].name!] = v3;\n        if (bindLen > 4) value[bindings[4].name!] = v4;\n        if (bindLen > 5) value[bindings[5].name!] = v5;\n        if (bindLen > 6) value[bindings[6].name!] = v6;\n        if (bindLen > 7) value[bindings[7].name!] = v7;\n        if (bindLen > 8) value[bindings[8].name!] = v8;\n        if (bindLen > 9) value[bindings[9].name!] = v9;\n        break;\n      case NodeFlags.TypePurePipe:\n        const pipe = v0;\n        switch (bindLen) {\n          case 1:\n            value = pipe.transform(v0);\n            break;\n          case 2:\n            value = pipe.transform(v1);\n            break;\n          case 3:\n            value = pipe.transform(v1, v2);\n            break;\n          case 4:\n            value = pipe.transform(v1, v2, v3);\n            break;\n          case 5:\n            value = pipe.transform(v1, v2, v3, v4);\n            break;\n          case 6:\n            value = pipe.transform(v1, v2, v3, v4, v5);\n            break;\n          case 7:\n            value = pipe.transform(v1, v2, v3, v4, v5, v6);\n            break;\n          case 8:\n            value = pipe.transform(v1, v2, v3, v4, v5, v6, v7);\n            break;\n          case 9:\n            value = pipe.transform(v1, v2, v3, v4, v5, v6, v7, v8);\n            break;\n          case 10:\n            value = pipe.transform(v1, v2, v3, v4, v5, v6, v7, v8, v9);\n            break;\n        }\n        break;\n    }\n    data.value = value;\n  }\n  return changed;\n}\n\nexport function checkAndUpdatePureExpressionDynamic(\n    view: ViewData, def: NodeDef, values: any[]): boolean {\n  const bindings = def.bindings;\n  let changed = false;\n  for (let i = 0; i < values.length; i++) {\n    // Note: We need to loop over all values, so that\n    // the old values are updates as well!\n    if (checkAndUpdateBinding(view, def, i, values[i])) {\n      changed = true;\n    }\n  }\n  if (changed) {\n    const data = asPureExpressionData(view, def.nodeIndex);\n    let value: any;\n    switch (def.flags & NodeFlags.Types) {\n      case NodeFlags.TypePureArray:\n        value = values;\n        break;\n      case NodeFlags.TypePureObject:\n        value = {};\n        for (let i = 0; i < values.length; i++) {\n          value[bindings[i].name!] = values[i];\n        }\n        break;\n      case NodeFlags.TypePurePipe:\n        const pipe = values[0];\n        const params = values.slice(1);\n        value = (<any>pipe.transform)(...params);\n        break;\n    }\n    data.value = value;\n  }\n  return changed;\n}\n"]}