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refactor(compiler): misc minor (#23441) 

PR Close #23441
This commit is contained in:
Victor Berchet 2018-04-17 13:27:18 -07:00
parent 84f024309a
commit 6ff164be0e
3 changed files with 19 additions and 15 deletions
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4
packages/compiler/src/template_parser/binding_parser.ts
View File

@ -124,6 +124,7 @@ export class BindingParser {
}
}
// Parse an inline template binding. ie `<tag *prefixToken="<value>">`
parseInlineTemplateBinding(
prefixToken: string, value: string, sourceSpan: ParseSourceSpan,
targetMatchableAttrs: string[][], targetProps: BoundProperty[], targetVars: VariableAst[]) {
@ -387,7 +388,8 @@ export class BindingParser {
}
}
private _checkPipes(ast: ASTWithSource, sourceSpan: ParseSourceSpan) {
// Make sure all the used pipes are known in `this.pipesByName`
private _checkPipes(ast: ASTWithSource, sourceSpan: ParseSourceSpan): void {
if (ast) {
const collector = new PipeCollector();
ast.visit(collector);

28
packages/compiler/src/template_parser/template_parser.ts
View File

@ -254,7 +254,7 @@ class TemplateParseVisitor implements html.Visitor {
visitElement(element: html.Element, parent: ElementContext): any {
const queryStartIndex = this.contentQueryStartId;
const nodeName = element.name;
const elName = element.name;
const preparsedElement = preparseElement(element);
if (preparsedElement.type === PreparsedElementType.SCRIPT ||
preparsedElement.type === PreparsedElementType.STYLE) {
@ -318,7 +318,7 @@ class TemplateParseVisitor implements html.Visitor {
}
});
const elementCssSelector = createElementCssSelector(nodeName, matchableAttrs);
const elementCssSelector = createElementCssSelector(elName, matchableAttrs);
const {directives: directiveMetas, matchElement} =
this._parseDirectives(this.selectorMatcher, elementCssSelector);
const references: ReferenceAst[] = [];
@ -341,13 +341,14 @@ class TemplateParseVisitor implements html.Visitor {
isTemplateElement ? parent.providerContext ! : providerContext));
providerContext.afterElement();
// Override the actual selector when the `ngProjectAs` attribute is provided
const projectionSelector = preparsedElement.projectAs != null ?
const projectionSelector = preparsedElement.projectAs != '' ?
CssSelector.parse(preparsedElement.projectAs)[0] :
elementCssSelector;
const ngContentIndex = parent.findNgContentIndex(projectionSelector) !;
let parsedElement: TemplateAst;
if (preparsedElement.type === PreparsedElementType.NG_CONTENT) {
// `<ng-content>` element
if (element.children && !element.children.every(_isEmptyTextNode)) {
this._reportError(`<ng-content> element cannot have content.`, element.sourceSpan !);
}
@ -356,6 +357,7 @@ class TemplateParseVisitor implements html.Visitor {
this.ngContentCount++, hasInlineTemplates ? null ! : ngContentIndex,
element.sourceSpan !);
} else if (isTemplateElement) {
// `<ng-template>` element
this._assertAllEventsPublishedByDirectives(directiveAsts, events);
this._assertNoComponentsNorElementBindingsOnTemplate(
directiveAsts, elementProps, element.sourceSpan !);
@ -366,30 +368,30 @@ class TemplateParseVisitor implements html.Visitor {
providerContext.queryMatches, children, hasInlineTemplates ? null ! : ngContentIndex,
element.sourceSpan !);
} else {
// element other than `<ng-content>` and `<ng-template>`
this._assertElementExists(matchElement, element);
this._assertOnlyOneComponent(directiveAsts, element.sourceSpan !);
const ngContentIndex =
hasInlineTemplates ? null : parent.findNgContentIndex(projectionSelector);
parsedElement = new ElementAst(
nodeName, attrs, elementProps, events, references,
providerContext.transformedDirectiveAsts, providerContext.transformProviders,
providerContext.transformedHasViewContainer, providerContext.queryMatches, children,
hasInlineTemplates ? null : ngContentIndex, element.sourceSpan,
element.endSourceSpan || null);
elName, attrs, elementProps, events, references, providerContext.transformedDirectiveAsts,
providerContext.transformProviders, providerContext.transformedHasViewContainer,
providerContext.queryMatches, children, hasInlineTemplates ? null : ngContentIndex,
element.sourceSpan, element.endSourceSpan || null);
}
if (hasInlineTemplates) {
// The element as a *-attribute
const templateQueryStartIndex = this.contentQueryStartId;
const templateSelector = createElementCssSelector('ng-template', templateMatchableAttrs);
const {directives: templateDirectiveMetas} =
this._parseDirectives(this.selectorMatcher, templateSelector);
const {directives} = this._parseDirectives(this.selectorMatcher, templateSelector);
const templateBoundDirectivePropNames = new Set<string>();
const templateDirectiveAsts = this._createDirectiveAsts(
true, element.name, templateDirectiveMetas, templateElementOrDirectiveProps, [],
element.sourceSpan !, [], templateBoundDirectivePropNames);
true, elName, directives, templateElementOrDirectiveProps, [], element.sourceSpan !, [],
templateBoundDirectivePropNames);
const templateElementProps: BoundElementPropertyAst[] = this._createElementPropertyAsts(
element.name, templateElementOrDirectiveProps, templateBoundDirectivePropNames);
elName, templateElementOrDirectiveProps, templateBoundDirectivePropNames);
this._assertNoComponentsNorElementBindingsOnTemplate(
templateDirectiveAsts, templateElementProps, element.sourceSpan !);
const templateProviderContext = new ProviderElementContext(

2
packages/compiler/src/template_parser/template_preparser.ts
View File

@ -24,7 +24,7 @@ export function preparseElement(ast: html.Element): PreparsedElement {
let hrefAttr: string = null !;
let relAttr: string = null !;
let nonBindable = false;
let projectAs: string = null !;
let projectAs = '';
ast.attrs.forEach(attr => {
const lcAttrName = attr.name.toLowerCase();
if (lcAttrName == NG_CONTENT_SELECT_ATTR) {