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fix(compiler): improve error message for unknown elements (#14373)

This commit is contained in:
Dzmitry Shylovich 2017-02-09 12:29:14 +03:00 committed by Miško Hevery
parent 9e28568a8f
commit 2c6dab970b
2 changed files with 16 additions and 8 deletions
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16
modules/@angular/compiler/src/template_parser/template_parser.ts
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@ -674,9 +674,16 @@ class TemplateParseVisitor implements html.Visitor {
const elName = element.name.replace(/^:xhtml:/, '');
if (!matchElement && !this._schemaRegistry.hasElement(elName, this._schemas)) {
const errorMsg = `'${elName}' is not a known element:\n` +
`1. If '${elName}' is an Angular component, then verify that it is part of this module.\n` +
`2. If '${elName}' is a Web Component then add "CUSTOM_ELEMENTS_SCHEMA" to the '@NgModule.schemas' of this component to suppress this message.`;
let errorMsg = `'${elName}' is not a known element:\n`;
errorMsg +=
`1. If '${elName}' is an Angular component, then verify that it is part of this module.\n`;
if (elName.indexOf('-') > -1) {
errorMsg +=
`2. If '${elName}' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.`;
} else {
errorMsg +=
`2. To allow any element add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component.`;
}
this._reportError(errorMsg, element.sourceSpan);
}
}
@ -725,7 +732,8 @@ class TemplateParseVisitor implements html.Visitor {
if (elementName.indexOf('-') > -1) {
errorMsg +=
`\n1. If '${elementName}' is an Angular component and it has '${boundProp.name}' input, then verify that it is part of this module.` +
`\n2. If '${elementName}' is a Web Component then add "CUSTOM_ELEMENTS_SCHEMA" to the '@NgModule.schemas' of this component to suppress this message.\n`;
`\n2. If '${elementName}' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.` +
`\n3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component.`;
}
this._reportError(errorMsg, boundProp.sourceSpan);
}

8
modules/@angular/compiler/test/template_parser/template_parser_spec.ts
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@ -376,22 +376,22 @@ export function main() {
.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.
("<my-component [ERROR ->][invalidProp]="bar"></my-component>"): TestComp@0:14`);
2. If 'my-component' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("<my-component [ERROR ->][invalidProp]="bar"></my-component>"): TestComp@0:14`);
});
it('should throw error when binding to an unknown element w/o bindings', () => {
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`);
2. To allow any element add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("[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(`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`);
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`);
});
it('should throw error when binding to an invalid property', () => {