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@angular/compiler

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Angular - the compiler library

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/** * @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 */ (function (factory) { if (typeof module === "object" && typeof module.exports === "object") { var v = factory(require, exports); if (v !== undefined) module.exports = v; } else if (typeof define === "function" && define.amd) { define("@angular/compiler/src/render3/util", ["require", "exports", "@angular/compiler/src/aot/static_symbol", "@angular/compiler/src/output/output_ast"], factory); } })(function (require, exports) { "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.wrapReference = exports.jitOnlyGuardedExpression = exports.prepareSyntheticListenerFunctionName = exports.getSyntheticPropertyName = exports.isSyntheticPropertyOrListener = exports.prepareSyntheticListenerName = exports.prepareSyntheticPropertyName = exports.typeWithParameters = exports.convertMetaToOutput = exports.mapToMapExpression = void 0; var static_symbol_1 = require("@angular/compiler/src/aot/static_symbol"); var o = require("@angular/compiler/src/output/output_ast"); /** * Convert an object map with `Expression` values into a `LiteralMapExpr`. */ function mapToMapExpression(map) { var result = Object.keys(map).map(function (key) { return ({ key: key, // The assertion here is because really TypeScript doesn't allow us to express that if the // key is present, it will have a value, but this is true in reality. value: map[key], quoted: false, }); }); return o.literalMap(result); } exports.mapToMapExpression = mapToMapExpression; /** * Convert metadata into an `Expression` in the given `OutputContext`. * * This operation will handle arrays, references to symbols, or literal `null` or `undefined`. */ function convertMetaToOutput(meta, ctx) { if (Array.isArray(meta)) { return o.literalArr(meta.map(function (entry) { return convertMetaToOutput(entry, ctx); })); } if (meta instanceof static_symbol_1.StaticSymbol) { return ctx.importExpr(meta); } if (meta == null) { return o.literal(meta); } throw new Error("Internal error: Unsupported or unknown metadata: " + meta); } exports.convertMetaToOutput = convertMetaToOutput; function typeWithParameters(type, numParams) { if (numParams === 0) { return o.expressionType(type); } var params = []; for (var i = 0; i < numParams; i++) { params.push(o.DYNAMIC_TYPE); } return o.expressionType(type, undefined, params); } exports.typeWithParameters = typeWithParameters; var ANIMATE_SYMBOL_PREFIX = '@'; function prepareSyntheticPropertyName(name) { return "" + ANIMATE_SYMBOL_PREFIX + name; } exports.prepareSyntheticPropertyName = prepareSyntheticPropertyName; function prepareSyntheticListenerName(name, phase) { return "" + ANIMATE_SYMBOL_PREFIX + name + "." + phase; } exports.prepareSyntheticListenerName = prepareSyntheticListenerName; function isSyntheticPropertyOrListener(name) { return name.charAt(0) == ANIMATE_SYMBOL_PREFIX; } exports.isSyntheticPropertyOrListener = isSyntheticPropertyOrListener; function getSyntheticPropertyName(name) { // this will strip out listener phase values... // @foo.start => @foo var i = name.indexOf('.'); name = i > 0 ? name.substring(0, i) : name; if (name.charAt(0) !== ANIMATE_SYMBOL_PREFIX) { name = ANIMATE_SYMBOL_PREFIX + name; } return name; } exports.getSyntheticPropertyName = getSyntheticPropertyName; function prepareSyntheticListenerFunctionName(name, phase) { return "animation_" + name + "_" + phase; } exports.prepareSyntheticListenerFunctionName = prepareSyntheticListenerFunctionName; function jitOnlyGuardedExpression(expr) { var ngJitMode = new o.ExternalExpr({ name: 'ngJitMode', moduleName: null }); var jitFlagNotDefined = new o.BinaryOperatorExpr(o.BinaryOperator.Identical, new o.TypeofExpr(ngJitMode), o.literal('undefined')); var jitFlagUndefinedOrTrue = new o.BinaryOperatorExpr(o.BinaryOperator.Or, jitFlagNotDefined, ngJitMode, /* type */ undefined, /* sourceSpan */ undefined, true); return new o.BinaryOperatorExpr(o.BinaryOperator.And, jitFlagUndefinedOrTrue, expr); 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i < numParams; i++) {\n    params.push(o.DYNAMIC_TYPE);\n  }\n  return o.expressionType(type, undefined, params);\n}\n\nexport interface R3Reference {\n  value: o.Expression;\n  type: o.Expression;\n}\n\nconst ANIMATE_SYMBOL_PREFIX = '@';\nexport function prepareSyntheticPropertyName(name: string) {\n  return `${ANIMATE_SYMBOL_PREFIX}${name}`;\n}\n\nexport function prepareSyntheticListenerName(name: string, phase: string) {\n  return `${ANIMATE_SYMBOL_PREFIX}${name}.${phase}`;\n}\n\nexport function isSyntheticPropertyOrListener(name: string) {\n  return name.charAt(0) == ANIMATE_SYMBOL_PREFIX;\n}\n\nexport function getSyntheticPropertyName(name: string) {\n  // this will strip out listener phase values...\n  // @foo.start => @foo\n  const i = name.indexOf('.');\n  name = i > 0 ? name.substring(0, i) : name;\n  if (name.charAt(0) !== ANIMATE_SYMBOL_PREFIX) {\n    name = ANIMATE_SYMBOL_PREFIX + name;\n  }\n  return name;\n}\n\nexport function prepareSyntheticListenerFunctionName(name: string, phase: string) {\n  return `animation_${name}_${phase}`;\n}\n\nexport function jitOnlyGuardedExpression(expr: o.Expression): o.Expression {\n  const ngJitMode = new o.ExternalExpr({name: 'ngJitMode', moduleName: null});\n  const jitFlagNotDefined = new o.BinaryOperatorExpr(\n      o.BinaryOperator.Identical, new o.TypeofExpr(ngJitMode), o.literal('undefined'));\n  const jitFlagUndefinedOrTrue = new o.BinaryOperatorExpr(\n      o.BinaryOperator.Or, jitFlagNotDefined, ngJitMode, /* type */ undefined,\n      /* sourceSpan */ undefined, true);\n  return new o.BinaryOperatorExpr(o.BinaryOperator.And, jitFlagUndefinedOrTrue, expr);\n}\n\nexport function wrapReference(value: any): R3Reference {\n  const wrapped = new o.WrappedNodeExpr(value);\n  return {value: wrapped, type: wrapped};\n}\n"]}