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remove bogus double var decl check

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Irmen de Jong 2022-02-06 14:04:54 +01:00
parent 8ae3bad6f7
commit f538c9f0c3
1 changed files with 0 additions and 24 deletions
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24
compiler/src/prog8/compiler/astprocessing/BeforeAsmAstChanger.kt
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@ -20,18 +20,6 @@ internal class BeforeAsmAstChanger(val program: Program, private val options: Co
private val errors: IErrorReporter
) : AstWalker() {
private val subroutineVariables = mutableMapOf<Subroutine, MutableList<Pair<String, VarDecl>>>()
private fun rememberSubroutineVar(decl: VarDecl) {
val sub = decl.definingSubroutine ?: return
var varsList = subroutineVariables[sub]
if(varsList==null) {
varsList = mutableListOf()
subroutineVariables[sub] = varsList
}
varsList.add(decl.name to decl)
}
override fun before(breakStmt: Break, parent: Node): Iterable<IAstModification> {
throw FatalAstException("break should have been replaced by goto $breakStmt")
}
@ -70,7 +58,6 @@ internal class BeforeAsmAstChanger(val program: Program, private val options: Co
if (decl.type == VarDeclType.VAR && decl.value != null && decl.datatype in NumericDatatypes)
throw FatalAstException("vardecls for variables, with initial numerical value, should have been rewritten as plain vardecl + assignment $decl")
}
rememberSubroutineVar(decl)
return noModifications
}
@ -132,17 +119,6 @@ internal class BeforeAsmAstChanger(val program: Program, private val options: Co
override fun after(subroutine: Subroutine, parent: Node): Iterable<IAstModification> {
val mods = mutableListOf<IAstModification>()
val firstDeclarations = mutableMapOf<String, VarDecl>()
val rememberedSubroutineVars = subroutineVariables.getOrDefault(subroutine, mutableListOf())
for(decl in rememberedSubroutineVars) {
val existing = firstDeclarations[decl.first]
if(existing!=null && existing !== decl.second) {
errors.err("variable ${decl.first} already defined in subroutine ${subroutine.name} at ${existing.position}", decl.second.position)
} else {
firstDeclarations[decl.first] = decl.second
}
}
rememberedSubroutineVars.clear()
// add the implicit return statement at the end (if it's not there yet), but only if it's not a kernal routine.
// and if an assembly block doesn't contain a rts/rti, and some other situations.