75 lines
2.6 KiB
JavaScript
75 lines
2.6 KiB
JavaScript
/******************************************************************************
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* Copyright 2022 TypeFox GmbH
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* This program and the accompanying materials are made available under the
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* terms of the MIT License, which is available in the project root.
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******************************************************************************/
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import { SemanticTokenTypes } from 'vscode-languageserver';
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import { AbstractSemanticTokenProvider } from '../../lsp/semantic-token-provider.js';
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import { isAction, isAssignment, isInfixRule, isParameter, isParameterReference, isReturnType, isRuleCall, isSimpleType, isTypeAttribute } from '../../languages/generated/ast.js';
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export class LangiumGrammarSemanticTokenProvider extends AbstractSemanticTokenProvider {
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highlightElement(node, acceptor) {
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if (isAssignment(node)) {
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acceptor({
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node,
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property: 'feature',
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type: SemanticTokenTypes.property
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});
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}
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else if (isAction(node)) {
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if (node.feature) {
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acceptor({
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node,
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property: 'feature',
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type: SemanticTokenTypes.property
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});
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}
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}
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else if (isReturnType(node)) {
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acceptor({
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node,
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property: 'name',
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type: SemanticTokenTypes.type
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});
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}
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else if (isSimpleType(node)) {
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if (node.primitiveType || node.typeRef) {
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acceptor({
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node,
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property: node.primitiveType ? 'primitiveType' : 'typeRef',
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type: SemanticTokenTypes.type
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});
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}
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}
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else if (isParameter(node)) {
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acceptor({
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node,
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property: 'name',
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type: SemanticTokenTypes.parameter
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});
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}
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else if (isParameterReference(node)) {
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acceptor({
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node,
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property: 'parameter',
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type: SemanticTokenTypes.parameter
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});
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}
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else if (isRuleCall(node)) {
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if (!isInfixRule(node.rule.ref) && node.rule.ref?.fragment) {
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acceptor({
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node,
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property: 'rule',
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type: SemanticTokenTypes.type
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});
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}
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}
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else if (isTypeAttribute(node)) {
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acceptor({
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node,
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property: 'name',
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type: SemanticTokenTypes.property
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});
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}
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}
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}
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//# sourceMappingURL=grammar-semantic-tokens.js.map
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