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feat: Support for
textDocument/semanticTokens
Fixes redhat-developer#238 Signed-off-by: azerr <[email protected]>
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186 changes: 186 additions & 0 deletions
186
...m/redhat/devtools/lsp4ij/features/semanticTokens/DefaultSemanticTokensColorsProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Red Hat, Inc. | ||
| * Distributed under license by Red Hat, Inc. All rights reserved. | ||
| * This program is made available under the terms of the | ||
| * Eclipse Public License v2.0 which accompanies this distribution, | ||
| * and is available at http://www.eclipse.org/legal/epl-v20.html | ||
| * | ||
| * Contributors: | ||
| * Red Hat, Inc. - initial API and implementation | ||
| ******************************************************************************/ | ||
| package com.redhat.devtools.lsp4ij.features.semanticTokens; | ||
|
|
||
| import com.intellij.openapi.editor.DefaultLanguageHighlighterColors; | ||
| import com.intellij.openapi.editor.colors.TextAttributesKey; | ||
| import com.intellij.psi.PsiFile; | ||
| import org.eclipse.lsp4j.SemanticTokenModifiers; | ||
| import org.eclipse.lsp4j.SemanticTokenTypes; | ||
| import org.jetbrains.annotations.NotNull; | ||
| import org.jetbrains.annotations.Nullable; | ||
|
|
||
| import java.util.List; | ||
|
|
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| public class DefaultSemanticTokensColorsProvider implements SemanticTokensColorsProvider { | ||
|
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|
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| @Override | ||
| public @Nullable TextAttributesKey getTextAttributesKey(@NotNull String tokenType, | ||
| @NotNull List<String> tokenModifiers, | ||
| @NotNull PsiFile file) { | ||
| switch (tokenType) { | ||
|
|
||
| // class: for identifiers that declare or reference a class type. | ||
| case SemanticTokenTypes.Class: | ||
| if (hasTokenModifiers(tokenModifiers, | ||
| SemanticTokenModifiers.Declaration, | ||
| SemanticTokenModifiers.Definition)) { | ||
| // with declaration, definition modifiers | ||
| return SemanticTokensHighlightingColors.CLASS_DECLARATION; | ||
| } | ||
| // with other modifiers | ||
| return SemanticTokensHighlightingColors.CLASS_REFERENCE; | ||
|
|
||
| // comment | ||
| case SemanticTokenTypes.Comment: | ||
| return SemanticTokensHighlightingColors.COMMENT; | ||
|
|
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| // decorator | ||
| case SemanticTokenTypes.Decorator: | ||
| return SemanticTokensHighlightingColors.DECORATOR; | ||
|
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| // enum | ||
| case SemanticTokenTypes.Enum: | ||
| return SemanticTokensHighlightingColors.ENUM; | ||
|
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| // enum member | ||
| case SemanticTokenTypes.EnumMember: | ||
| return SemanticTokensHighlightingColors.ENUM_MEMBER; | ||
|
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| // event | ||
| case SemanticTokenTypes.Event: | ||
| return SemanticTokensHighlightingColors.EVENT; | ||
|
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| // function | ||
| case SemanticTokenTypes.Function: | ||
| if (hasTokenModifiers(tokenModifiers, | ||
| SemanticTokenModifiers.Declaration, | ||
| SemanticTokenModifiers.Definition)) { | ||
| // with declaration, definition modifiers | ||
| return SemanticTokensHighlightingColors.FUNCTION_DECLARATION; | ||
| } | ||
| // with other modifiers | ||
| return SemanticTokensHighlightingColors.FUNCTION_CALL; | ||
|
|
||
| // interface | ||
| case SemanticTokenTypes.Interface: | ||
| return DefaultLanguageHighlighterColors.INTERFACE_NAME; | ||
|
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| // keyword | ||
| case SemanticTokenTypes.Keyword: | ||
| return SemanticTokensHighlightingColors.KEYWORD; | ||
|
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| // macro | ||
| case SemanticTokenTypes.Macro: | ||
| return SemanticTokensHighlightingColors.MACRO; | ||
|
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| // method | ||
| case SemanticTokenTypes.Method: { | ||
| if (hasTokenModifiers(tokenModifiers, | ||
| SemanticTokenModifiers.Declaration, | ||
| SemanticTokenModifiers.Definition)) { | ||
| // with declaration, definition modifiers | ||
| return SemanticTokensHighlightingColors.METHOD_DECLARATION; | ||
| } | ||
| // with other modifiers | ||
| return SemanticTokensHighlightingColors.METHOD_CALL; | ||
| } | ||
|
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| /*case "member": | ||
| return SemanticTokensHighlightingColors.MEMBER_ATTRIBUTES; | ||
| */ | ||
|
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| // modifier | ||
| case SemanticTokenTypes.Modifier: | ||
| return SemanticTokensHighlightingColors.MODIFIER; | ||
|
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| // Namespace: for identifiers that declare or reference a namespace, module, or package. | ||
| case SemanticTokenTypes.Namespace: | ||
| if (hasTokenModifiers(tokenModifiers, | ||
| SemanticTokenModifiers.Declaration, | ||
| SemanticTokenModifiers.Definition)) { | ||
| // with declaration, definition modifiers | ||
| return SemanticTokensHighlightingColors.NAMESPACE_DECLARATION; | ||
| } | ||
| // with other modifiers | ||
| return SemanticTokensHighlightingColors.NAMESPACE; | ||
|
|
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| // Number: for tokens that represent a number literal. | ||
| case SemanticTokenTypes.Number: | ||
| return SemanticTokensHighlightingColors.NUMBER; | ||
|
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| // Operator | ||
| case SemanticTokenTypes.Operator: | ||
| return DefaultLanguageHighlighterColors.OPERATION_SIGN; | ||
|
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| // Parameter | ||
| case SemanticTokenTypes.Parameter: | ||
| return DefaultLanguageHighlighterColors.PARAMETER; | ||
|
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| // Property | ||
| case SemanticTokenTypes.Property: | ||
| if (hasTokenModifiers(tokenModifiers, SemanticTokenModifiers.Static)) { | ||
| if (hasTokenModifiers(tokenModifiers, SemanticTokenModifiers.Readonly)) { | ||
| // with static, readonly modifiers | ||
| return SemanticTokensHighlightingColors.STATIC_READONLY_PROPERTY; | ||
| } | ||
| // with static readonly modifiers | ||
| return SemanticTokensHighlightingColors.STATIC_PROPERTY; | ||
| } | ||
| if (hasTokenModifiers(tokenModifiers, SemanticTokenModifiers.Readonly)) { | ||
| // with readonly modifiers | ||
| return SemanticTokensHighlightingColors.READONLY_PROPERTY; | ||
| } | ||
| // with other modifiers | ||
| return SemanticTokensHighlightingColors.PROPERTY; | ||
|
|
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| case SemanticTokenTypes.Regexp: | ||
| return DefaultLanguageHighlighterColors.REASSIGNED_LOCAL_VARIABLE; | ||
|
|
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| case SemanticTokenTypes.String: | ||
| return SemanticTokensHighlightingColors.STRING; | ||
|
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| case SemanticTokenTypes.Struct: | ||
| return DefaultLanguageHighlighterColors.VALID_STRING_ESCAPE; | ||
|
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| case SemanticTokenTypes.Type: | ||
| return DefaultLanguageHighlighterColors.CLASS_REFERENCE; | ||
|
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| case SemanticTokenTypes.TypeParameter: | ||
| return DefaultLanguageHighlighterColors.MARKUP_ATTRIBUTE; | ||
|
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| // variable | ||
| case SemanticTokenTypes.Variable: | ||
| return DefaultLanguageHighlighterColors.LOCAL_VARIABLE; | ||
| } | ||
| return null; | ||
| } | ||
|
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| protected boolean hasTokenModifiers(List<String> tokenModifiers, String... checkedTokenModifiers) { | ||
| if (tokenModifiers.isEmpty()) { | ||
| return false; | ||
| } | ||
| for (var modifier : checkedTokenModifiers) { | ||
| if (tokenModifiers.contains(modifier)) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
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| protected boolean hasTokenModifiersOrEmpty(List<String> tokenModifiers, String... checkedTokenModifiers) { | ||
| if (tokenModifiers.isEmpty()) { | ||
| return true; | ||
| } | ||
| return hasTokenModifiers(tokenModifiers, checkedTokenModifiers); | ||
| } | ||
| } |
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