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fix(compiler): absolute source span for template attribute expressions (#33189)

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Prior to this commit, the absolute spans (relative to template source
file rather than the start of an expression) of expressions in a
template attribute like `*ngIf` were generated incorrectly, equating to
the relative spans.
This fixes the bug by passing an `absoluteOffset` parameter when parsing
template bindings.

Through some levels of indirection, this is required for the Language
Service to support text replacement in
https://github.com/angular/angular/pull/33091.

PR Close #33189
This commit is contained in:
ayazhafiz
2019-10-15 17:02:56 -05:00
committed by Matias Niemelä
parent 422eb14dc0
commit fd4fed14d8
3 changed files with 16 additions and 6 deletions
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11
packages/compiler/src/template_parser/binding_parser.ts
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@ -118,7 +118,7 @@ export class BindingParser {
tplKey: string, tplValue: string, sourceSpan: ParseSourceSpan, absoluteOffset: number,
targetMatchableAttrs: string[][], targetProps: ParsedProperty[],
targetVars: ParsedVariable[]) {
const bindings = this._parseTemplateBindings(tplKey, tplValue, sourceSpan);
const bindings = this._parseTemplateBindings(tplKey, tplValue, sourceSpan, absoluteOffset);
for (let i = 0; i < bindings.length; i++) {
const binding = bindings[i];
@ -137,13 +137,14 @@ export class BindingParser {
}
}
private _parseTemplateBindings(tplKey: string, tplValue: string, sourceSpan: ParseSourceSpan):
TemplateBinding[] {
private _parseTemplateBindings(
tplKey: string, tplValue: string, sourceSpan: ParseSourceSpan,
absoluteOffset: number): TemplateBinding[] {
const sourceInfo = sourceSpan.start.toString();
try {
const bindingsResult = this._exprParser.parseTemplateBindings(
tplKey, tplValue, sourceInfo, sourceSpan.start.offset);
const bindingsResult =
this._exprParser.parseTemplateBindings(tplKey, tplValue, sourceInfo, absoluteOffset);
this._reportExpressionParserErrors(bindingsResult.errors, sourceSpan);
bindingsResult.templateBindings.forEach((binding) => {
if (binding.expression) {