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refactor tryGetModuleFromFile
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commit
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@ -1,8 +1,6 @@
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package prog8.compiler
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import com.github.michaelbull.result.Err
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import com.github.michaelbull.result.Ok
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import com.github.michaelbull.result.Result
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import com.github.michaelbull.result.*
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import prog8.ast.Module
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import prog8.ast.Program
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import prog8.ast.base.Position
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@ -11,6 +9,7 @@ import prog8.ast.statements.Directive
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import prog8.ast.statements.DirectiveArg
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import prog8.parser.Prog8Parser
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import prog8.parser.SourceCode
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import java.io.File
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import java.nio.file.Path
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import kotlin.io.path.*
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@ -20,11 +19,11 @@ class ModuleImporter(private val program: Program,
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val errors: IErrorReporter,
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sourceDirs: List<String>) {
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private val libpaths: List<Path> = sourceDirs.map { Path(it) }
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private val sourcePaths: List<Path> = sourceDirs.map { Path(it) }
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fun importModule(filePath: Path): Result<Module, NoSuchFileException> {
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val currentDir = Path("").absolute()
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val searchIn = listOf(currentDir) + libpaths
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val searchIn = listOf(currentDir) + sourcePaths
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val candidates = searchIn
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.map { it.absolute().div(filePath).normalize().absolute() }
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.filter { it.exists() }
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@ -81,19 +80,22 @@ class ModuleImporter(private val program: Program,
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if (existing!=null)
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return null // TODO: why return null instead of Module instance?
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var srcCode = tryGetModuleFromResource("$moduleName.p8", compilationTargetName)
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val srcCode = tryGetModuleFromResource("$moduleName.p8", compilationTargetName)
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val importedModule =
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if (srcCode != null) {
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println("importing '$moduleName' (from internal ${srcCode.origin})")
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importModule(srcCode)
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} else {
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srcCode = tryGetModuleFromFile(moduleName, importingModule)
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if (srcCode == null) {
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errors.err("imported file not found: $moduleName.p8", import.position)
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val moduleSrc = getModuleFromFile(moduleName, importingModule)
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moduleSrc.fold(
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success = {
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importModule(it)
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},
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failure = {
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errors.err("no module found with name $moduleName", import.position)
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return null
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//throw NoSuchFileException(File("$moduleName.p8"))
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}
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importModule(srcCode)
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)
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}
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removeDirectivesFromImportedModule(importedModule)
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@ -122,13 +124,14 @@ class ModuleImporter(private val program: Program,
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return null
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}
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private fun tryGetModuleFromFile(name: String, importingModule: Module?): SourceCode? {
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private fun getModuleFromFile(name: String, importingModule: Module?): Result<SourceCode, NoSuchFileException> {
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val fileName = "$name.p8"
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val locations =
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if (importingModule == null) { // <=> imported from library module
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libpaths
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sourcePaths
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} else {
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libpaths.drop(1) + // TODO: why drop the first?
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val dropCurDir = if(sourcePaths[0].name == ".") 1 else 0
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sourcePaths.drop(dropCurDir) +
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// FIXME: won't work until Prog8Parser is fixed s.t. it fully initialzes the modules it returns
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listOf(Path(importingModule.position.file).parent ?: Path("")) +
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listOf(Path(".", "prog8lib"))
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@ -136,12 +139,11 @@ class ModuleImporter(private val program: Program,
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locations.forEach {
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try {
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return SourceCode.File(it.resolve(fileName))
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return Ok(SourceCode.File(it.resolve(fileName)))
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} catch (e: NoSuchFileException) {
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}
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}
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//throw ParsingFailedError("$position Import: no module source file '$fileName' found (I've looked in: embedded libs and $locations)")
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return null
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return Err(NoSuchFileException(File("name")))
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}
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}
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