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| 1 | +import findRoot = require('find-root'); |
| 2 | +import * as path from 'path'; |
| 3 | +import * as ts_module from 'typescript/lib/tsserverlibrary'; |
| 4 | + |
| 5 | +function init(modules: { typescript: typeof ts_module }): |
| 6 | + { create(info: ts.server.PluginCreateInfo): ts.LanguageService } { |
| 7 | + const ts = modules.typescript; |
| 8 | + |
| 9 | + function resolveToPattern(info: ts.server.PluginCreateInfo, moduleName: string, containingFile: string, |
| 10 | + parts: string[], patternJson: string): ts_module.ResolvedModule { |
| 11 | + if (moduleName === 'Pattern' && containingFile.endsWith('demo.tsx')) { |
| 12 | + const resolvedFileName = path.sep + path.join(...parts, 'index.tsx'); |
| 13 | + info.project.projectService.logger.info(`Resolved Pattern to ${resolvedFileName}`); |
| 14 | + return { resolvedFileName }; |
| 15 | + } else { |
| 16 | + const pkg = JSON.parse(ts.sys.readFile(patternJson)); |
| 17 | + // info.project.projectService.logger.info(`Dependency to ${moduleName}`); |
| 18 | + if (pkg.patterns && moduleName in pkg.patterns) { |
| 19 | + const root = findRoot(patternJson); |
| 20 | + // info.project.projectService.logger.info(`Root path ${root}`); |
| 21 | + const resolvedFileName = path.join(root, 'patterns', pkg.patterns[moduleName], 'index.tsx'); |
| 22 | + return { resolvedFileName }; |
| 23 | + } |
| 24 | + } |
| 25 | + return undefined as any; |
| 26 | + } |
| 27 | + |
| 28 | + function create(info: ts.server.PluginCreateInfo): ts.LanguageService { |
| 29 | + const resolveModuleNames = info.languageServiceHost.resolveModuleNames; |
| 30 | + info.languageServiceHost.resolveModuleNames = function(moduleNames: string[], containingFile: string): |
| 31 | + ts_module.ResolvedModule[] { |
| 32 | + |
| 33 | + const resolvedNames = moduleNames.map(moduleName => { |
| 34 | + // info.project.projectService.logger.info(`Resolve ${moduleName} in ${containingFile}`); |
| 35 | + const parts = containingFile.split(path.sep); |
| 36 | + parts.pop(); |
| 37 | + const patternJson = path.sep + path.join(...parts, 'pattern.json'); |
| 38 | + // info.project.projectService.logger.info(`Pattern? to resolve ${patternJson}`); |
| 39 | + if (ts.sys.fileExists(patternJson)) { |
| 40 | + const resolvedModule = resolveToPattern(info, moduleName, containingFile, parts, patternJson); |
| 41 | + if (resolvedModule) { |
| 42 | + return resolvedModule; |
| 43 | + } |
| 44 | + } |
| 45 | + if (resolveModuleNames) { |
| 46 | + // info.project.projectService.logger.info(`Resolve ${moduleName} on orig LSHost`); |
| 47 | + const result = resolveModuleNames.call(info.languageServiceHost, [moduleName], |
| 48 | + containingFile) as ts_module.ResolvedModule[]; |
| 49 | + if (result && result.length > 0) { |
| 50 | + return result[0]; |
| 51 | + } |
| 52 | + } |
| 53 | + return undefined; |
| 54 | + }); |
| 55 | + if (resolvedNames && resolvedNames.length > 0) { |
| 56 | + return resolvedNames as any; |
| 57 | + } |
| 58 | + |
| 59 | + if (resolveModuleNames) { |
| 60 | + info.project.projectService.logger.info(`Resolve all on orig LSHost`); |
| 61 | + return resolveModuleNames.call(info.languageServiceHost, moduleNames, containingFile); |
| 62 | + } |
| 63 | + |
| 64 | + // fallback to standard resolving |
| 65 | + return moduleNames.map(moduleName => { |
| 66 | + const result = ts.resolveModuleName(moduleName, containingFile, |
| 67 | + info.project.getCompilerOptions(), |
| 68 | + { fileExists: ts.sys.fileExists, readFile: ts.sys.readFile }); |
| 69 | + if (result.resolvedModule) { |
| 70 | + return result.resolvedModule; |
| 71 | + } |
| 72 | + |
| 73 | + // note: as any is a quirk here, since the CompilerHost interface does not allow strict null checks |
| 74 | + return undefined as any; |
| 75 | + }); |
| 76 | + }; |
| 77 | + return info.languageService; |
| 78 | + } |
| 79 | + |
| 80 | + return { create }; |
| 81 | +} |
| 82 | + |
| 83 | +export = init; |
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