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Closes #27 ### Summary of Changes Add semantic highlighting for declaration names and names used in cross-references. --------- Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -61,7 +61,8 @@ | |
| "Number", | ||
| "Int", | ||
| "Float", | ||
| "ListMap", | ||
| "List", | ||
| "Map", | ||
| "String", | ||
| ) | ||
|
|
||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,226 @@ | ||
| import { | ||
| AbstractSemanticTokenProvider, | ||
| AllSemanticTokenTypes, | ||
| AstNode, | ||
| hasContainerOfType, | ||
| SemanticTokenAcceptor, | ||
| DefaultSemanticTokenOptions, | ||
| } from 'langium'; | ||
| import { | ||
| isSdsAnnotation, | ||
| isSdsAnnotationCall, | ||
| isSdsArgument, | ||
| isSdsAttribute, | ||
| isSdsClass, | ||
| isSdsDeclaration, | ||
| isSdsEnum, | ||
| isSdsEnumVariant, | ||
| isSdsFunction, | ||
| isSdsImport, | ||
| isSdsImportedDeclaration, | ||
| isSdsModule, | ||
| isSdsNamedType, | ||
| isSdsParameter, | ||
| isSdsPipeline, | ||
| isSdsPlaceholder, | ||
| isSdsReference, | ||
| isSdsSegment, | ||
| isSdsTypeArgument, | ||
| isSdsTypeParameter, | ||
| isSdsTypeParameterConstraint, | ||
| } from '../generated/ast.js'; | ||
| import { SemanticTokenModifiers, SemanticTokenTypes } from 'vscode-languageserver-types'; | ||
| import { SafeDsServices } from '../safe-ds-module.js'; | ||
| import { SafeDsClasses } from '../builtins/safe-ds-classes.js'; | ||
|
|
||
| // Add a new semantic token type for decorators, which is missing in langium v2.0.2 | ||
| if (!AllSemanticTokenTypes[SemanticTokenTypes.decorator]) { | ||
| const maxValue = Math.max(...Object.values(AllSemanticTokenTypes)); | ||
| AllSemanticTokenTypes[SemanticTokenTypes.decorator] = maxValue + 1; | ||
|
|
||
| DefaultSemanticTokenOptions.legend.tokenTypes = Object.keys(AllSemanticTokenTypes); | ||
| } | ||
|
|
||
| export class SafeDsSemanticTokenProvider extends AbstractSemanticTokenProvider { | ||
| private readonly builtinClasses: SafeDsClasses; | ||
|
|
||
| constructor(services: SafeDsServices) { | ||
| super(services); | ||
|
|
||
| this.builtinClasses = services.builtins.Classes; | ||
| } | ||
|
|
||
| protected highlightElement(node: AstNode, acceptor: SemanticTokenAcceptor): void { | ||
| if (isSdsAnnotationCall(node)) { | ||
| acceptor({ | ||
| node, | ||
| keyword: '@', | ||
| type: SemanticTokenTypes.decorator, | ||
| }); | ||
| acceptor({ | ||
| node, | ||
| property: 'annotation', | ||
| type: SemanticTokenTypes.decorator, | ||
| }); | ||
| } else if (isSdsArgument(node)) { | ||
| if (node.parameter) { | ||
| acceptor({ | ||
| node, | ||
| property: 'parameter', | ||
| type: SemanticTokenTypes.parameter, | ||
| }); | ||
| } | ||
| } else if (isSdsDeclaration(node)) { | ||
| const info = this.computeSemanticTokenInfoForDeclaration(node, [SemanticTokenModifiers.declaration]); | ||
| if (info) { | ||
| acceptor({ | ||
| node, | ||
| property: 'name', | ||
| ...info, | ||
| }); | ||
| } | ||
| } else if (isSdsImport(node)) { | ||
| acceptor({ | ||
| node, | ||
| property: 'package', | ||
| type: SemanticTokenTypes.namespace, | ||
| }); | ||
| } else if (isSdsImportedDeclaration(node)) { | ||
| const info = this.computeSemanticTokenInfoForDeclaration(node.declaration.ref); | ||
| if (info) { | ||
| acceptor({ | ||
| node, | ||
| property: 'declaration', | ||
| ...info, | ||
| }); | ||
| } | ||
| } else if (isSdsNamedType(node)) { | ||
| const info = this.computeSemanticTokenInfoForDeclaration(node.declaration.ref); | ||
| if (info) { | ||
| acceptor({ | ||
| node, | ||
| property: 'declaration', | ||
| ...info, | ||
| }); | ||
| } | ||
| } else if (isSdsReference(node)) { | ||
| const info = this.computeSemanticTokenInfoForDeclaration(node.target.ref); | ||
| if (info) { | ||
| acceptor({ | ||
| node, | ||
| property: 'target', | ||
| ...info, | ||
| }); | ||
| } | ||
| } else if (isSdsTypeArgument(node)) { | ||
| if (node.typeParameter) { | ||
| acceptor({ | ||
| node, | ||
| property: 'typeParameter', | ||
| type: SemanticTokenTypes.typeParameter, | ||
| }); | ||
| } | ||
| } else if (isSdsTypeParameterConstraint(node)) { | ||
| acceptor({ | ||
| node, | ||
| property: 'leftOperand', | ||
| type: SemanticTokenTypes.typeParameter, | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| private computeSemanticTokenInfoForDeclaration( | ||
| node: AstNode | undefined, | ||
| additionalModifiers: SemanticTokenModifiers[] = [], | ||
| ): SemanticTokenInfo | void { | ||
| /* c8 ignore start */ | ||
| if (!node) { | ||
| return; | ||
| } | ||
| /* c8 ignore stop */ | ||
|
|
||
| if (isSdsAnnotation(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.decorator, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsAttribute(node)) { | ||
| const modifier = [SemanticTokenModifiers.readonly, ...additionalModifiers]; | ||
| if (node.isStatic) { | ||
| modifier.push(SemanticTokenModifiers.static); | ||
| } | ||
|
|
||
| return { | ||
| type: SemanticTokenTypes.property, | ||
| modifier, | ||
| }; | ||
| } else if (isSdsClass(node)) { | ||
| const isBuiltinClass = this.builtinClasses.isBuiltinClass(node); | ||
| return { | ||
| type: SemanticTokenTypes.class, | ||
| modifier: isBuiltinClass | ||
| ? [SemanticTokenModifiers.defaultLibrary, ...additionalModifiers] | ||
| : additionalModifiers, | ||
| }; | ||
| } else if (isSdsEnum(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.enum, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsEnumVariant(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.enumMember, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsFunction(node)) { | ||
| if (hasContainerOfType(node, isSdsClass)) { | ||
| return { | ||
| type: SemanticTokenTypes.method, | ||
| modifier: node.isStatic | ||
| ? [SemanticTokenModifiers.static, ...additionalModifiers] | ||
| : additionalModifiers, | ||
| }; | ||
| } else { | ||
| return { | ||
| type: SemanticTokenTypes.function, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } | ||
| } else if (isSdsModule(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.namespace, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsParameter(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.parameter, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsPipeline(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.function, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsPlaceholder(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.variable, | ||
| modifier: [SemanticTokenModifiers.readonly, ...additionalModifiers], | ||
| }; | ||
| } else if (isSdsSegment(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.function, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } else if (isSdsTypeParameter(node)) { | ||
| return { | ||
| type: SemanticTokenTypes.typeParameter, | ||
| modifier: additionalModifiers, | ||
| }; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| interface SemanticTokenInfo { | ||
| type: SemanticTokenTypes; | ||
| modifier?: SemanticTokenModifiers | SemanticTokenModifiers[]; | ||
| } |
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