1 | import ts from 'typescript';
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2 | import * as importDeclaration from './importDeclaration';
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3 | import * as node_ from './node';
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4 | import * as reference_ from './reference';
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5 | import * as symbol from './symbol';
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6 | import * as utils from './utils';
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7 | export function getAliasNode(node) {
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8 | return utils.getValueOrUndefined(node.propertyName);
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9 | }
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10 | export function getAliasName(node) {
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11 | const aliasNode = getAliasNode(node);
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12 | if (aliasNode === undefined) {
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13 | return aliasNode;
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14 | }
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15 | return aliasNode.getText();
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16 | }
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17 | export function getModuleSpecifier(node) {
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18 | const moduleSpecifier = utils.getValueOrUndefined(node.moduleSpecifier);
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19 | if (moduleSpecifier === undefined) {
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20 | return undefined;
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21 | }
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22 | if (!ts.isStringLiteral(moduleSpecifier)) {
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23 | return undefined;
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24 | }
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25 | return moduleSpecifier;
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26 | }
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27 | export function getModuleSpecifierSymbol(typeChecker, node) {
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28 | const moduleSpecifier = getModuleSpecifier(node);
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29 | if (moduleSpecifier === undefined) {
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30 | return undefined;
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31 | }
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32 | return node_.getSymbol(typeChecker, moduleSpecifier);
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33 | }
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34 | export function getModuleSpecifierSourceFile(typeChecker, node) {
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35 | const nodeSymbol = getModuleSpecifierSymbol(typeChecker, node);
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36 | if (nodeSymbol === undefined) {
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37 | return undefined;
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38 | }
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39 | const declarations = symbol.getDeclarations(nodeSymbol).filter(ts.isSourceFile);
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40 | return declarations.length === 0 ? undefined : declarations[0];
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41 | }
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42 | export function getModuleSpecifierSourceFileOrThrow(typeChecker, node) {
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43 | return utils.throwIfNullOrUndefined(getModuleSpecifierSourceFile(typeChecker, node), 'source file');
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44 | }
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45 | export function isExportEquals(node) {
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46 | return !!node.isExportEquals;
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47 | }
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48 | export function hasValueReference(program, languageService, node) {
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49 | const currentSourceFile = node_.getSourceFile(node);
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50 | const namespaceImport = importDeclaration.getNamespaceImport(node);
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51 | if (namespaceImport !== undefined &&
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52 | hasLocalValueReferences(program, languageService, currentSourceFile, namespaceImport)) {
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53 | return true;
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54 | }
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55 | const defaultImport = importDeclaration.getDefaultImport(node);
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56 | if (defaultImport !== undefined &&
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57 | hasLocalValueReferences(program, languageService, currentSourceFile, defaultImport)) {
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58 | return true;
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59 | }
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60 | return importDeclaration
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61 | .getNamedImports(node)
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62 | .some((namedImport) => hasLocalValueReferences(program, languageService, currentSourceFile, getImportNameNode(namedImport)));
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63 | }
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64 | export function hasLocalValueReferences(program, languageService, currentSourceFile, node) {
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65 | const references = reference_.findReferencesAsNodes(program, languageService, node);
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66 | return references.some((reference) => node_.getSourceFile(reference) === currentSourceFile &&
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67 | node_.getFirstAncestorByTest(reference, ts.isImportDeclaration) === undefined &&
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68 | !node_.isPartOfTypeNode(reference));
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69 | }
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70 | export function getImportNameNode(node) {
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71 | const alias = node_.getPropertyNameNode(node);
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72 | return alias === undefined ? node : alias;
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73 | }
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74 |
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undefined : declarations[0];\n}\n\nexport function getModuleSpecifierSourceFileOrThrow(\n  typeChecker: ts.TypeChecker,\n  node: ts.ImportDeclaration | ts.ExportDeclaration,\n): ts.SourceFile {\n  return utils.throwIfNullOrUndefined(getModuleSpecifierSourceFile(typeChecker, node), 'source file');\n}\n\nexport function isExportEquals(node: ts.ExportAssignment): boolean {\n  return !!node.isExportEquals;\n}\n\nexport function hasValueReference(\n  program: ts.Program,\n  languageService: ts.LanguageService,\n  node: ts.ImportDeclaration,\n): boolean {\n  const currentSourceFile = node_.getSourceFile(node);\n\n  const namespaceImport = importDeclaration.getNamespaceImport(node);\n  if (\n    namespaceImport !== undefined &&\n    hasLocalValueReferences(program, languageService, currentSourceFile, namespaceImport)\n  ) {\n    return true;\n  }\n\n  const defaultImport = importDeclaration.getDefaultImport(node);\n  if (\n    defaultImport !== undefined &&\n    hasLocalValueReferences(program, languageService, currentSourceFile, defaultImport)\n  ) {\n    return true;\n  }\n\n  return importDeclaration\n    .getNamedImports(node)\n    .some((namedImport) =>\n      hasLocalValueReferences(program, languageService, currentSourceFile, getImportNameNode(namedImport)),\n    );\n}\n\nexport function hasLocalValueReferences(\n  program: ts.Program,\n  languageService: ts.LanguageService,\n  currentSourceFile: ts.SourceFile,\n  node: node_.AnyNameableNode,\n): boolean {\n  const references = reference_.findReferencesAsNodes(program, languageService, node);\n\n  return references.some(\n    (reference) =>\n      node_.getSourceFile(reference) === currentSourceFile &&\n      node_.getFirstAncestorByTest(reference, ts.isImportDeclaration) === undefined &&\n      !node_.isPartOfTypeNode(reference),\n  );\n}\n\nexport function getImportNameNode(node: ts.ImportSpecifier): ts.ImportSpecifier | ts.Identifier {\n  const alias = node_.getPropertyNameNode(node);\n\n  return alias === undefined ? node : alias;\n}\n"]}
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