JoostK 077f51685a perf(compiler-cli): only emit directive/pipe references that are used (#38539)
For the compilation of a component, the compiler has to prepare some
information about the directives and pipes that are used in the template.
This information includes an expression for directives/pipes, for usage
within the compilation output. For large NgModule compilation scopes
this has shown to introduce a performance hotspot, as the generation of
expressions is quite expensive. This commit reduces the performance
overhead by only generating expressions for the directives/pipes that
are actually used within the template, significantly cutting down on
the compiler's resolve phase.

PR Close #38539
2020-09-14 11:54:37 -07:00
2020-01-27 09:31:22 -08:00
2020-01-13 07:21:43 -08:00

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