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perf: Don’t subclass Error; resulting in smaller binary (#14160)

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Subclassing errors is problematic since Error returns a
new instance. All of the patching which we do than prevent
proper application of source maps.

PR Close #14160
This commit is contained in:
Miško Hevery
2017-01-27 13:19:00 -08:00
committed by Miško Hevery
parent 3c2842be96
commit c33fda2607
51 changed files with 407 additions and 500 deletions
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65
modules/@angular/compiler/test/template_parser/template_parser_spec.ts
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@ -5,7 +5,6 @@
* 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 {SyntaxError} from '@angular/compiler';
import {CompileAnimationEntryMetadata, CompileDiDependencyMetadata, CompileDirectiveMetadata, CompileDirectiveSummary, CompilePipeMetadata, CompilePipeSummary, CompileProviderMetadata, CompileTemplateMetadata, CompileTokenMetadata, CompileTypeMetadata, tokenReference} from '@angular/compiler/src/compile_metadata';
import {DomElementSchemaRegistry} from '@angular/compiler/src/schema/dom_element_schema_registry';
import {ElementSchemaRegistry} from '@angular/compiler/src/schema/element_schema_registry';
@ -374,7 +373,7 @@ export function main() {
describe('errors', () => {
it('should throw error when binding to an unknown property', () => {
expect(() => parse('<my-component [invalidProp]="bar"></my-component>', []))
.toThrowError(SyntaxError, `Template parse errors:
.toThrowError(`Template parse errors:
Can't bind to 'invalidProp' since it isn't a known property of 'my-component'.
1. If 'my-component' is an Angular component and it has 'invalidProp' input, then verify that it is part of this module.
2. If 'my-component' is a Web Component then add "CUSTOM_ELEMENTS_SCHEMA" to the '@NgModule.schemas' of this component to suppress this message.
@ -382,16 +381,14 @@ Can't bind to 'invalidProp' since it isn't a known property of 'my-component'.
});
it('should throw error when binding to an unknown element w/o bindings', () => {
expect(() => parse('<unknown></unknown>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<unknown></unknown>', [])).toThrowError(`Template parse errors:
'unknown' is not a known element:
1. If 'unknown' is an Angular component, then verify that it is part of this module.
2. If 'unknown' is a Web Component then add "CUSTOM_ELEMENTS_SCHEMA" to the '@NgModule.schemas' of this component to suppress this message. ("[ERROR ->]<unknown></unknown>"): TestComp@0:0`);
});
it('should throw error when binding to an unknown custom element w/o bindings', () => {
expect(() => parse('<un-known></un-known>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<un-known></un-known>', [])).toThrowError(`Template parse errors:
'un-known' is not a known element:
1. If 'un-known' is an Angular component, then verify that it is part of this module.
2. If 'un-known' is a Web Component then add "CUSTOM_ELEMENTS_SCHEMA" to the '@NgModule.schemas' of this component to suppress this message. ("[ERROR ->]<un-known></un-known>"): TestComp@0:0`);
@ -399,13 +396,13 @@ Can't bind to 'invalidProp' since it isn't a known property of 'my-component'.
it('should throw error when binding to an invalid property', () => {
expect(() => parse('<my-component [onEvent]="bar"></my-component>', []))
.toThrowError(SyntaxError, `Template parse errors:
.toThrowError(`Template parse errors:
Binding to property 'onEvent' is disallowed for security reasons ("<my-component [ERROR ->][onEvent]="bar"></my-component>"): TestComp@0:14`);
});
it('should throw error when binding to an invalid attribute', () => {
expect(() => parse('<my-component [attr.onEvent]="bar"></my-component>', []))
.toThrowError(SyntaxError, `Template parse errors:
.toThrowError(`Template parse errors:
Binding to attribute 'onEvent' is disallowed for security reasons ("<my-component [ERROR ->][attr.onEvent]="bar"></my-component>"): TestComp@0:14`);
});
});
@ -447,7 +444,6 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
() => {
expect(() => { parse('<div @someAnimation="value2">', [], [], []); })
.toThrowError(
SyntaxError,
/Assigning animation triggers via @prop="exp" attributes with an expression is invalid. Use property bindings \(e.g. \[@prop\]="exp"\) or use an attribute without a value \(e.g. @prop\) instead. \("<div \[ERROR ->\]@someAnimation="value2">"\): TestComp@0:5/);
});
@ -482,7 +478,6 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
expect(() => { parse('<broken></broken>', [dirA]); })
.toThrowError(
SyntaxError,
`Template parse errors:\nValue of the host property binding "class.foo" needs to be a string representing an expression but got "null" (object) ("[ERROR ->]<broken></broken>"): TestComp@0:0, Directive DirA`);
});
@ -498,7 +493,6 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
expect(() => { parse('<broken></broken>', [dirA]); })
.toThrowError(
SyntaxError,
`Template parse errors:\nValue of the host listener "click" needs to be a string representing an expression but got "null" (object) ("[ERROR ->]<broken></broken>"): TestComp@0:0, Directive DirA`);
});
@ -962,8 +956,8 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
const dirB = createDir('[dirB]', {providers: [provider1]});
expect(() => parse('<div dirA dirB>', [dirA, dirB]))
.toThrowError(
SyntaxError, `Template parse errors:\n` +
`Mixing multi and non multi provider is not possible for token service0 ("[ERROR ->]<div dirA dirB>"): TestComp@0:0`);
`Template parse errors:\n` +
`Mixing multi and non multi provider is not possible for token service0 ("[ERROR ->]<div dirA dirB>"): TestComp@0:0`);
});
it('should sort providers by their DI order', () => {
@ -1055,7 +1049,6 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
const dirA = createDir('[dirA]', {deps: ['self:provider0']});
expect(() => parse('<div dirA></div>', [dirA]))
.toThrowError(
SyntaxError,
'Template parse errors:\nNo provider for provider0 ("[ERROR ->]<div dirA></div>"): TestComp@0:0');
});
@ -1070,7 +1063,6 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
const dirA = createDir('[dirA]', {deps: ['host:provider0']});
expect(() => parse('<div dirA></div>', [dirA]))
.toThrowError(
SyntaxError,
'Template parse errors:\nNo provider for provider0 ("[ERROR ->]<div dirA></div>"): TestComp@0:0');
});
@ -1122,26 +1114,23 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
});
it('should report references with values that dont match a directive as errors', () => {
expect(() => parse('<div #a="dirA"></div>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div #a="dirA"></div>', [])).toThrowError(`Template parse errors:
There is no directive with "exportAs" set to "dirA" ("<div [ERROR ->]#a="dirA"></div>"): TestComp@0:5`);
});
it('should report invalid reference names', () => {
expect(() => parse('<div #a-b></div>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div #a-b></div>', [])).toThrowError(`Template parse errors:
"-" is not allowed in reference names ("<div [ERROR ->]#a-b></div>"): TestComp@0:5`);
});
it('should report variables as errors', () => {
expect(() => parse('<div let-a></div>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div let-a></div>', [])).toThrowError(`Template parse errors:
"let-" is only supported on template elements. ("<div [ERROR ->]let-a></div>"): TestComp@0:5`);
});
it('should report duplicate reference names', () => {
expect(() => parse('<div #a></div><div #a></div>', []))
.toThrowError(SyntaxError, `Template parse errors:
.toThrowError(`Template parse errors:
Reference "#a" is defined several times ("<div #a></div><div [ERROR ->]#a></div>"): TestComp@0:19`);
});
@ -1513,8 +1502,8 @@ Reference "#a" is defined several times ("<div #a></div><div [ERROR ->]#a></div>
it('should report when ng-content has non WS content', () => {
expect(() => parse('<ng-content>content</ng-content>', []))
.toThrowError(
SyntaxError, `Template parse errors:\n` +
`<ng-content> element cannot have content. ("[ERROR ->]<ng-content>content</ng-content>"): TestComp@0:0`);
`Template parse errors:\n` +
`<ng-content> element cannot have content. ("[ERROR ->]<ng-content>content</ng-content>"): TestComp@0:0`);
});
it('should treat *attr on a template element as valid',
@ -1524,20 +1513,18 @@ Reference "#a" is defined several times ("<div #a></div><div [ERROR ->]#a></div>
() => { expect(() => parse('<template template="ngIf">', [])).not.toThrowError(); });
it('should report when mutliple *attrs are used on the same element', () => {
expect(() => parse('<div *ngIf *ngFor>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div *ngIf *ngFor>', [])).toThrowError(`Template parse errors:
Can't have multiple template bindings on one element. Use only one attribute named 'template' or prefixed with * ("<div *ngIf [ERROR ->]*ngFor>"): TestComp@0:11`);
});
it('should report when mix of template and *attrs are used on the same element', () => {
expect(() => parse('<span template="ngIf" *ngFor>', []))
.toThrowError(SyntaxError, `Template parse errors:
.toThrowError(`Template parse errors:
Can't have multiple template bindings on one element. Use only one attribute named 'template' or prefixed with * ("<span template="ngIf" [ERROR ->]*ngFor>"): TestComp@0:22`);
});
it('should report invalid property names', () => {
expect(() => parse('<div [invalidProp]></div>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div [invalidProp]></div>', [])).toThrowError(`Template parse errors:
Can't bind to 'invalidProp' since it isn't a known property of 'div'. ("<div [ERROR ->][invalidProp]></div>"): TestComp@0:5`);
});
@ -1550,13 +1537,12 @@ Can't bind to 'invalidProp' since it isn't a known property of 'div'. ("<div [ER
host: {'[invalidProp]': 'someProp'}
})
.toSummary();
expect(() => parse('<div></div>', [dirA])).toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div></div>', [dirA])).toThrowError(`Template parse errors:
Can't bind to 'invalidProp' since it isn't a known property of 'div'. ("[ERROR ->]<div></div>"): TestComp@0:0, Directive DirA`);
});
it('should report errors in expressions', () => {
expect(() => parse('<div [prop]="a b"></div>', []))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div [prop]="a b"></div>', [])).toThrowError(`Template parse errors:
Parser Error: Unexpected token 'b' at column 3 in [a b] in TestComp@0:5 ("<div [ERROR ->][prop]="a b"></div>"): TestComp@0:5`);
});
@ -1594,10 +1580,10 @@ Parser Error: Unexpected token 'b' at column 3 in [a b] in TestComp@0:5 ("<div [
.toSummary();
expect(() => parse('<div>', [dirB, dirA]))
.toThrowError(
SyntaxError, `Template parse errors:\n` +
`More than one component matched on this element.\n` +
`Make sure that only one component's selector can match a given element.\n` +
`Conflicting components: DirB,DirA ("[ERROR ->]<div>"): TestComp@0:0`);
`Template parse errors:\n` +
`More than one component matched on this element.\n` +
`Make sure that only one component's selector can match a given element.\n` +
`Conflicting components: DirB,DirA ("[ERROR ->]<div>"): TestComp@0:0`);
});
it('should not allow components or element bindings nor dom events on explicit embedded templates',
@ -1612,7 +1598,7 @@ Parser Error: Unexpected token 'b' at column 3 in [a b] in TestComp@0:5 ("<div [
})
.toSummary();
expect(() => parse('<template [a]="b" (e)="f"></template>', [dirA]))
.toThrowError(SyntaxError, `Template parse errors:
.toThrowError(`Template parse errors:
Event binding e not emitted by any directive on an embedded template. Make sure that the event name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("<template [a]="b" [ERROR ->](e)="f"></template>"): TestComp@0:18
Components on an embedded template: DirA ("[ERROR ->]<template [a]="b" (e)="f"></template>"): TestComp@0:0
Property binding a not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("[ERROR ->]<template [a]="b" (e)="f"></template>"): TestComp@0:0`);
@ -1628,8 +1614,7 @@ Property binding a not used by any directive on an embedded template. Make sure
template: new CompileTemplateMetadata({ngContentSelectors: []})
})
.toSummary();
expect(() => parse('<div *a="b"></div>', [dirA]))
.toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('<div *a="b"></div>', [dirA])).toThrowError(`Template parse errors:
Components on an embedded template: DirA ("[ERROR ->]<div *a="b"></div>"): TestComp@0:0
Property binding a not used by any directive on an embedded template. Make sure that the property name is spelled correctly and all directives are listed in the "@NgModule.declarations". ("[ERROR ->]<div *a="b"></div>"): TestComp@0:0`);
});
@ -1889,7 +1874,7 @@ Property binding a not used by any directive on an embedded template. Make sure
});
it('should report pipes as error that have not been defined as dependencies', () => {
expect(() => parse('{{a | test}}', [])).toThrowError(SyntaxError, `Template parse errors:
expect(() => parse('{{a | test}}', [])).toThrowError(`Template parse errors:
The pipe 'test' could not be found ("{{[ERROR ->]a | test}}"): TestComp@0:2`);
});