[Patch port] fix(compiler): error if rawText isn't estimated correctly (#60529) #60753
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atscott
previously approved these changes
Apr 4, 2025
) The `TemplateLiteralElementExpr` has some logic where it tries to estimate the `rawText` if one isn't provided by looking at the node's source span. The problem with this approach is that we have some long-standing issues with our expression AST parser (see angular#60267 (comment)) where it might not produce accurate spans if escape sequences are involved. This in turn can lead to unrecoverable errors, because TypeScript will throw an error if the raw string doesn't match the cooked one when constructing a TypeScript AST node. These changes remove the logic that depends on the source span and relies purely on the secondary fallback that inserts escaped characters manually. It's also worth noting that the `rawText` doesn't seem to matter much at this point, because the main usage of it is when downlevelling template literals to ES5 which we no longer support. Fixes angular#60528. PR Close angular#60529
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pkozlowski-opensource
approved these changes
Apr 7, 2025
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This PR was merged into the repository by commit 3441f7b. The changes were merged into the following branches: 19.2.x |
atscott
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Apr 7, 2025
…60753) The `TemplateLiteralElementExpr` has some logic where it tries to estimate the `rawText` if one isn't provided by looking at the node's source span. The problem with this approach is that we have some long-standing issues with our expression AST parser (see #60267 (comment)) where it might not produce accurate spans if escape sequences are involved. This in turn can lead to unrecoverable errors, because TypeScript will throw an error if the raw string doesn't match the cooked one when constructing a TypeScript AST node. These changes remove the logic that depends on the source span and relies purely on the secondary fallback that inserts escaped characters manually. It's also worth noting that the `rawText` doesn't seem to matter much at this point, because the main usage of it is when downlevelling template literals to ES5 which we no longer support. Fixes #60528. PR Close #60529 PR Close #60753
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Note: this is a patch port of #60529.
The
TemplateLiteralElementExprhas some logic where it tries to estimate therawTextif one isn't provided by looking at the node's source span. The problem with this approach is that we have some long-standing issues with our expression AST parser (see #60267 (comment)) where it might not produce accurate spans if escape sequences are involved. This in turn can lead to unrecoverable errors, because TypeScript will throw an error if the raw string doesn't match the cooked one when constructing a TypeScript AST node.These changes remove the logic that depends on the source span and relies purely on the secondary fallback that inserts escaped characters manually.
It's also worth noting that the
rawTextdoesn't seem to matter much at this point, because the main usage of it is when downlevelling template literals to ES5 which we no longer support.Fixes #60528.
Fixes #60751.