parser: lazy support

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/PorkFile.kt

@@ -10,8 +10,4 @@ class PorkFile(viewProvider: FileViewProvider) : PsiFileBase(viewProvider, PorkL
   }
 
   override fun toString(): String = "Pork"
-
-  override fun isPhysical(): Boolean {
-    return super.isPhysical()
-  }
 }

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/PorkLexer.kt

@@ -1,15 +1,15 @@
 package gay.pizza.pork.idea
 
 import com.intellij.lexer.LexerBase
-import com.intellij.openapi.diagnostic.Logger
 import com.intellij.openapi.progress.ProcessCanceledException
 import com.intellij.psi.tree.IElementType
-import gay.pizza.pork.parser.*
+import gay.pizza.pork.parser.BadCharacterError
+import gay.pizza.pork.parser.StringCharSource
+import gay.pizza.pork.parser.Tokenizer
+import gay.pizza.pork.parser.UnterminatedTokenError
 import com.intellij.psi.TokenType as PsiTokenType
 
 class PorkLexer : LexerBase() {
-  private val log: Logger = Logger.getInstance(PorkLexer::class.java)
-
   private lateinit var source: StringCharSource
   private lateinit var tokenizer: Tokenizer
   private var internalTokenStart: Int = 0

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/PorkReferenceAnnotator.kt

@@ -0,0 +1,27 @@
+package gay.pizza.pork.idea
+
+import com.intellij.codeInspection.ProblemHighlightType
+import com.intellij.lang.annotation.AnnotationHolder
+import com.intellij.lang.annotation.Annotator
+import com.intellij.lang.annotation.HighlightSeverity
+import com.intellij.psi.PsiElement
+import gay.pizza.pork.idea.psi.gen.PorkElement
+
+class PorkReferenceAnnotator : Annotator {
+  override fun annotate(element: PsiElement, holder: AnnotationHolder) {
+    if (element !is PorkElement) {
+      return
+    }
+
+    val reference = element.reference ?: return
+    val resolved = reference.resolve()
+    if (resolved != null) {
+      return
+    }
+
+    holder.newAnnotation(HighlightSeverity.ERROR, "Unresolved reference")
+      .range(element.textRange)
+      .highlightType(ProblemHighlightType.LIKE_UNKNOWN_SYMBOL)
+      .create()
+  }
+}

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/PsiBuilderMarkAttribution.kt

@@ -7,10 +7,10 @@ import gay.pizza.pork.parser.ParseError
 import gay.pizza.pork.parser.ParserNodeAttribution
 
 class PsiBuilderMarkAttribution(val builder: PsiBuilder) : ParserNodeAttribution() {
-  override fun <T : Node> guarded(type: NodeType?, block: () -> T): T {
+  override fun <T : Node> produce(type: NodeType, block: () -> T): T {
     val marker = builder.mark()
     val result = try {
-      val item = super.guarded(type, block)
+      val item = super.produce(type, block)
       marker.done(PorkElementTypes.elementTypeFor(item.type))
       item
     } catch (e: PsiBuilderTokenSource.BadCharacterError) {

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/PsiBuilderTokenSource.kt

@@ -1,14 +1,11 @@
 package gay.pizza.pork.idea
 
 import com.intellij.lang.PsiBuilder
-import gay.pizza.pork.parser.SourceIndex
-import gay.pizza.pork.parser.Token
-import gay.pizza.pork.parser.TokenSource
-import gay.pizza.pork.parser.TokenType
+import gay.pizza.pork.parser.*
 import com.intellij.psi.TokenType as PsiTokenType
 
 @Suppress("UnstableApiUsage")
-class PsiBuilderTokenSource(val builder: PsiBuilder) : TokenSource {
+class PsiBuilderTokenSource(val builder: PsiBuilder) : ParserAwareTokenSource {
   override val currentIndex: Int = 0
 
   override fun next(): Token {
@@ -41,7 +38,5 @@ class PsiBuilderTokenSource(val builder: PsiBuilder) : TokenSource {
     return PorkElementTypes.tokenTypeFor(elementType) ?: TokenType.EndOfFile
   }
 
-  override fun ignoringParserIgnoredTypes(): TokenSource = this
-
   class BadCharacterError(error: String) : RuntimeException(error)
 }

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/psi/PorkElementHelpers.kt

@@ -3,6 +3,7 @@ package gay.pizza.pork.idea.psi
 import com.intellij.lang.ASTNode
 import com.intellij.model.Symbol
 import com.intellij.navigation.ItemPresentation
+import com.intellij.openapi.util.TextRange
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiFileFactory
 import com.intellij.psi.PsiReference
@@ -51,7 +52,7 @@ object PorkElementHelpers {
     unused(type)
 
     if (element is ImportPathElement) {
-      return PorkFileReference(element, element.textRange)
+      return PorkFileReference(element, TextRange(0, element.textLength))
     }
 
     val symbols = element.childrenOfType<SymbolElement>()
@@ -77,7 +78,7 @@ object PorkElementHelpers {
     }
 
     if (element is LetAssignmentElement || element is VarAssignmentElement) {
-      return PorkPresentable(element.name, icon)
+      return PorkPresentable(element.name, icon, element.containingFile.virtualFile?.name)
     }
 
     return null

support/pork-idea/src/main/kotlin/gay/pizza/pork/idea/psi/PorkPresentable.kt

@@ -6,5 +6,5 @@ import javax.swing.Icon
 class PorkPresentable(val porkText: String?, val porkIcon: Icon? = null, val porkLocation: String? = null) : ItemPresentation {
   override fun getPresentableText(): String? = porkText
   override fun getIcon(unused: Boolean): Icon? = porkIcon
-  override fun getLocationString(): String?  = porkLocation
+  override fun getLocationString(): String? = porkLocation
 }

support/pork-idea/src/main/resources/META-INF/plugin.xml

@@ -32,6 +32,9 @@
         <lang.quoteHandler
                 language="Pork"
                 implementationClass="gay.pizza.pork.idea.PorkQuoteHandler"/>
+        <annotator
+                language="Pork"
+                implementationClass="gay.pizza.pork.idea.PorkReferenceAnnotator"/>
 <!--        <codeInsight.parameterInfo
                 language="Pork"
                 implementationClass="gay.pizza.pork.idea.PorkParameterInfoHandler"/>-->