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code_completion.md: link Element Patterns

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Yann Cébron 2021-03-10 18:22:49 +01:00
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topics/reference_guide/custom_language_support/code_completion.md
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@ -32,7 +32,7 @@ Implementing the [`CompletionContributor`](upsource:///platform/analysis-api/src
> >
{type="note"} {type="note"}
The core scenario of using [`CompletionContributor`](upsource:///platform/analysis-api/src/com/intellij/codeInsight/completion/CompletionContributor.java) consists of calling the `extend()` method and passing in the *pattern* specifying the context in which this completion variant is applicable, as well as a *completion provider* which generates the items to show in the completion list. The core scenario of using [`CompletionContributor`](upsource:///platform/analysis-api/src/com/intellij/codeInsight/completion/CompletionContributor.java) consists of calling the `extend()` method and passing in the [Element Pattern](element_patterns.md) specifying the context in which this completion variant is applicable, as well as a *completion provider* which generates the items to show in the completion list.
Keep in mind that the pattern is checked against the leaf PSI element. Keep in mind that the pattern is checked against the leaf PSI element.
If you want to match a composite element, use `withParent()` or `withSuperParent()` methods. If you want to match a composite element, use `withParent()` or `withSuperParent()` methods.