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improved tracking of module file locations, fixed relative importing of submodules from same directory as source module

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This commit is contained in:
Irmen de Jong 2019-02-12 21:44:56 +01:00
parent bcdf3f2b83
commit 29b7d91293
2 changed files with 25 additions and 16 deletions
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21
compiler/src/prog8/ast/AST.kt
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@ -9,6 +9,7 @@ import prog8.compiler.target.c64.Petscii
import prog8.functions.BuiltinFunctions
import prog8.functions.NotConstArgumentException
import prog8.functions.builtinFunctionReturnType
import prog8.parser.CustomLexer
import prog8.parser.prog8Parser
import java.io.File
import java.nio.file.Path
@ -1787,18 +1788,22 @@ class RepeatLoop(var body: AnonymousScope,
/***************** Antlr Extension methods to create AST ****************/
fun prog8Parser.ModuleContext.toAst(name: String, isLibrary: Boolean, importedFrom: Path) : Module =
Module(name, modulestatement().asSequence().map { it.toAst(isLibrary) }.toMutableList(), toPosition(), isLibrary, importedFrom)
fun prog8Parser.ModuleContext.toAst(name: String, isLibrary: Boolean, importedFrom: Path) : Module {
val nameWithoutSuffix = if(name.endsWith(".p8")) name.substringBeforeLast('.') else name
return Module(nameWithoutSuffix, modulestatement().asSequence().map { it.toAst(isLibrary) }.toMutableList(), toPosition(), isLibrary, importedFrom)
}
private fun ParserRuleContext.toPosition() : Position {
val file =
if(start.inputStream.sourceName == IntStream.UNKNOWN_SOURCE_NAME)
"@internal@"
else
File(start.inputStream.sourceName).name
val customTokensource = this.start.tokenSource as? CustomLexer
val filename =
when {
customTokensource!=null -> customTokensource.modulePath.fileName.toString()
start.tokenSource.sourceName == IntStream.UNKNOWN_SOURCE_NAME -> "@internal@"
else -> File(start.inputStream.sourceName).name
}
// note: be ware of TAB characters in the source text, they count as 1 column...
return Position(file, start.line, start.charPositionInLine, stop.charPositionInLine+stop.text.length)
return Position(filename, start.line, start.charPositionInLine, stop.charPositionInLine+stop.text.length)
}

20
compiler/src/prog8/parser/ModuleParsing.kt
View File

@ -5,6 +5,7 @@ import prog8.ast.*
import prog8.compiler.LauncherType
import prog8.compiler.OutputType
import prog8.determineCompilationOptions
import java.io.File
import java.io.InputStream
import java.nio.file.Files
import java.nio.file.Path
@ -26,8 +27,12 @@ private class LexerErrorListener: BaseErrorListener() {
}
fun importModule(stream: CharStream, moduleName: String, isLibrary: Boolean): Module {
val lexer = prog8Lexer(stream)
internal class CustomLexer(val modulePath: Path, input: CharStream?) : prog8Lexer(input)
fun importModule(stream: CharStream, modulePath: Path, isLibrary: Boolean): Module {
val moduleName = modulePath.fileName
val lexer = CustomLexer(modulePath, stream)
val lexerErrors = LexerErrorListener()
lexer.addErrorListener(lexerErrors)
val tokens = CommentHandlingTokenStream(lexer)
@ -35,13 +40,13 @@ fun importModule(stream: CharStream, moduleName: String, isLibrary: Boolean): Mo
val parseTree = parser.module()
val numberOfErrors = parser.numberOfSyntaxErrors + lexerErrors.numberOfErrors
if(numberOfErrors > 0)
throw ParsingFailedError("There are $numberOfErrors errors in '$moduleName.p8'.")
throw ParsingFailedError("There are $numberOfErrors errors in '$moduleName'.")
// You can do something with the parsed comments:
// tokens.commentTokens().forEach { println(it) }
// convert to Ast
val moduleAst = parseTree.toAst(moduleName, isLibrary, Paths.get(stream.sourceName))
val moduleAst = parseTree.toAst(moduleName.toString(), isLibrary, modulePath)
importedModules[moduleAst.name] = moduleAst
// process imports
@ -63,7 +68,7 @@ fun importModule(stream: CharStream, moduleName: String, isLibrary: Boolean): Mo
.asSequence()
.mapIndexed { i, it -> Pair(i, it) }
.filter { (it.second as? Directive)?.directive == "%import" }
.map { Pair(it.first, executeImportDirective(it.second as Directive, Paths.get("$moduleName.p8"))) }
.map { Pair(it.first, executeImportDirective(it.second as Directive, modulePath)) }
.toList()
imports.reversed().forEach {
@ -95,9 +100,8 @@ fun importModule(filePath: Path) : Module {
if(!Files.isReadable(filePath))
throw ParsingFailedError("No such file: $filePath")
val moduleName = filePath.fileName.toString().substringBeforeLast('.')
val input = CharStreams.fromPath(filePath)
return importModule(input, moduleName, filePath.parent==null)
return importModule(input, filePath, filePath.parent==null)
}
@ -136,7 +140,7 @@ private fun executeImportDirective(import: Directive, importedFrom: Path): Modul
// load the module from the embedded resource
resource.use {
println("importing '$moduleName' (embedded library)")
importModule(CharStreams.fromStream(it), moduleName, true)
importModule(CharStreams.fromStream(it), Paths.get("@embedded@/$moduleName"), true)
}
} else {
val modulePath = discoverImportedModuleFile(moduleName, importedFrom, import.position)