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feat(ivy): record absolute position of template expressions (#31391)

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Currently, template expressions and statements have their location
recorded relative to the HTML element they are in, with no handle to
absolute location in a source file except for a line/column location.
However, the line/column location is also not entirely accurate, as it
points an entire semantic expression, and not necessarily the start of
an expression recorded by the expression parser.

To support record of the source code expressions originate from, add a
new `sourceSpan` field to `ASTWithSource` that records the absolute byte
offset of an expression within a source code.

Implement part 2 of [refactoring template parsing for
stability](https://hackmd.io/@X3ECPVy-RCuVfba-pnvIpw/BkDUxaW84/%2FMA1oxh6jRXqSmZBcLfYdyw?type=book).

PR Close #31391
This commit is contained in:
Ayaz Hafiz
2019-07-16 12:18:32 -07:00
committed by Miško Hevery
parent 8f084d7214
commit f65db20c6d
12 changed files with 210 additions and 95 deletions
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5
packages/compiler/src/parse_util.ts
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@ -109,6 +109,9 @@ export class ParseSourceSpan {
}
}
export const EMPTY_PARSE_LOCATION = new ParseLocation(new ParseSourceFile('', ''), 0, 0, 0);
export const EMPTY_SOURCE_SPAN = new ParseSourceSpan(EMPTY_PARSE_LOCATION, EMPTY_PARSE_LOCATION);
export enum ParseErrorLevel {
WARNING,
ERROR,
@ -154,4 +157,4 @@ export function r3JitTypeSourceSpan(
const sourceFile = new ParseSourceFile('', sourceFileName);
return new ParseSourceSpan(
new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));
}
}