SolutionBuilderHost

Used to create the program when need for program creation or recreation detected

If provided, used for module resolution as well as to handle directory structure

If provided, used in resolutions as well as handling directory structure

If provided is used to get the environment variable

Returns the module resolution cache used by a provided resolveModuleNames implementation so that any non-name module resolution operations (eg, package.json lookup) can reuse it

If provided along with custom resolveModuleNames or resolveTypeReferenceDirectives, used to determine if unchanged file path needs to re-resolve modules/type reference directives

If provided, used to cache and handle directory structure modifications

Symbol links resolution

If provided would be used to write log about compilation

Should provide create directory and writeFile if done of invalidatedProjects is not invoked with writeFileCallback

Use to check file presence for source files and if resolveModuleNames is not provided (complier is in charge of module resolution) then module files as well

Use to read file text for source files and if resolveModuleNames is not provided (complier is in charge of module resolution) then module files as well