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this is not modifying the ast

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This commit is contained in:
Irmen de Jong 2020-03-19 23:15:53 +01:00
parent 82dce2dd53
commit a191ec71a4
2 changed files with 6 additions and 7 deletions
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2
compiler/src/prog8/vm/astvm/AstVm.kt
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@ -189,7 +189,7 @@ class AstVm(val program: Program, compilationTarget: String) {
fun run() {
try {
val init = VariablesCreator(runtimeVariables)
val init = AstVmVariablesCreator(runtimeVariables)
init.visit(program)
// initialize all global variables

11
compiler/src/prog8/vm/astvm/VariablesCreator.kt → compiler/src/prog8/vm/astvm/AstVmVariablesCreator.kt
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@ -8,8 +8,7 @@ import prog8.ast.base.VarDeclType
import prog8.ast.expressions.ArrayLiteralValue
import prog8.ast.expressions.NumericLiteralValue
import prog8.ast.expressions.StringLiteralValue
import prog8.ast.processing.IAstModifyingVisitor
import prog8.ast.statements.Statement
import prog8.ast.processing.IAstVisitor
import prog8.ast.statements.StructDecl
import prog8.ast.statements.VarDecl
import prog8.ast.statements.ZeropageWish
@ -17,10 +16,10 @@ import prog8.vm.RuntimeValueArray
import prog8.vm.RuntimeValueNumeric
import prog8.vm.RuntimeValueString
class VariablesCreator(private val runtimeVariables: RuntimeVariables) : IAstModifyingVisitor {
class AstVmVariablesCreator(private val runtimeVariables: RuntimeVariables) : IAstVisitor {
override fun visit(program: Program) {
// define the three registers as global variables
// define the three registers as global variables, and set their initial values
runtimeVariables.define(program.namespace, Register.A.name, RuntimeValueNumeric(DataType.UBYTE, 0))
runtimeVariables.define(program.namespace, Register.X.name, RuntimeValueNumeric(DataType.UBYTE, 255))
runtimeVariables.define(program.namespace, Register.Y.name, RuntimeValueNumeric(DataType.UBYTE, 0))
@ -42,7 +41,7 @@ class VariablesCreator(private val runtimeVariables: RuntimeVariables) : IAstMod
super.visit(program)
}
override fun visit(decl: VarDecl): Statement {
override fun visit(decl: VarDecl) {
// if the decl is part of a struct, just skip it
if(decl.parent !is StructDecl) {
when (decl.type) {
@ -75,6 +74,6 @@ class VariablesCreator(private val runtimeVariables: RuntimeVariables) : IAstMod
}
}
}
return super.visit(decl)
super.visit(decl)
}
}