Function createProgramFromModuleText

typescript/src/ts/validate.ts:112–130

(moduleText: string, oldProgram?: ts.Program)

    }

    function createProgramFromModuleText(moduleText: string, oldProgram?: ts.Program) {
        const fileMap = new Map([
            createFileMapEntry("/lib.d.ts", libText),
            createFileMapEntry("/schema.ts", schema),
            createFileMapEntry("/json.ts", moduleText)
        ]);
        const host: ts.CompilerHost = {
            getSourceFile: fileName => fileMap.get(fileName),
            getDefaultLibFileName: () => "lib.d.ts",
            writeFile: () => {},
            getCurrentDirectory: () => "/",
            getCanonicalFileName: fileName => fileName,
            useCaseSensitiveFileNames: () => true,
            getNewLine: () => "\n",
            fileExists: fileName => fileMap.has(fileName),
            readFile: fileName => "",
        };
        return ts.createProgram(Array.from(fileMap.keys()), options, host, oldProgram);
    }

    function createFileMapEntry(filePath: string, fileText: string): [string, ts.SourceFile] {
        return [filePath, ts.createSourceFile(filePath, fileText, ts.ScriptTarget.Latest)];