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start making '&' (address-of) return a typed pointer, fixes some errors

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This commit is contained in:
Irmen de Jong
2025-05-08 22:40:26 +02:00
parent e98e6f70ac
commit 8353c689ca
15 changed files with 135 additions and 303 deletions
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12
compilerAst/src/prog8/ast/antlr/Antlr2Kotlin.kt
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@@ -635,14 +635,14 @@ private fun ExpressionContext.toAst(insideParentheses: Boolean=false) : Expressi
if(addressof()!=null) {
val addressOf = addressof()
val identifier = addressOf.scoped_identifier()
val identifier = addressOf.scoped_identifier().toAst()
val msb = addressOf.ADDRESS_OF_MSB()!=null
// note: &< (ADDRESS_OF_LSB) is equivalent to a regular &.
return if (identifier != null)
AddressOf(addressof().scoped_identifier().toAst(),null, null, msb, toPosition())
else {
val array = addressOf.arrayindexed()
AddressOf(array.scoped_identifier().toAst(), array.arrayindex().toAst(), null, msb, toPosition())
val index = addressOf.arrayindex()?.toAst()
return if(index!=null) {
AddressOf(identifier, index, null, msb, toPosition())
} else {
AddressOf(identifier,null, null, msb, toPosition())
}
}

12
compilerAst/src/prog8/ast/expressions/AstExpressions.kt
View File

@@ -553,7 +553,17 @@ data class AddressOf(var identifier: IdentifierReference?, var arrayIndex: Array
return null
}
override fun referencesIdentifier(nameInSource: List<String>) = identifier?.nameInSource==nameInSource || arrayIndex?.referencesIdentifier(nameInSource)==true || dereference?.referencesIdentifier(nameInSource)==true
override fun inferType(program: Program) = InferredTypes.knownFor(BaseDataType.UWORD)
override fun inferType(program: Program): InferredTypes.InferredType {
if(identifier!=null) {
val type = identifier!!.inferType(program).getOrUndef()
val addrofDt = type.typeForAddressOf(msb)
if(addrofDt.isUndefined) return InferredTypes.unknown()
else return InferredTypes.knownFor(addrofDt)
} else if(dereference!=null) {
TODO("address-of struct ptr deref field -> ptr type itself?")
} else
throw FatalAstException("invalid addressof")
}
override fun accept(visitor: IAstVisitor) = visitor.visit(this)
override fun accept(visitor: AstWalker, parent: Node)= visitor.visit(this, parent)
}