mirror of
https://github.com/irmen/prog8.git
synced 2024-06-14 00:29:34 +00:00
416 lines
15 KiB
Kotlin
416 lines
15 KiB
Kotlin
package prog8.compiler
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import prog8.ast.Module
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import prog8.ast.Program
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import prog8.ast.base.FatalAstException
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import prog8.ast.expressions.*
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import prog8.ast.statements.*
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import prog8.code.ast.*
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class IntermediateAstMaker(val srcProgram: Program) {
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fun transform(): PtProgram {
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val program = PtProgram(
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srcProgram.name,
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srcProgram.memsizer,
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srcProgram.encoding
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)
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for (module in srcProgram.modules) {
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program.add(transform(module))
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}
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return program
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}
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private fun transform(srcModule: Module): PtModule {
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val module = PtModule(
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srcModule.name,
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srcModule.loadAddress,
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srcModule.isLibrary,
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srcModule.position
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)
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for (statement in srcModule.statements)
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module.add(transformStatement(statement))
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return module
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}
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private fun transformStatement(statement: Statement): PtNode {
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return when (statement) {
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is AnonymousScope -> throw FatalAstException("AnonymousScopes should have been flattened")
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is Assignment -> transform(statement)
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is Block -> transform(statement)
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is Break -> throw FatalAstException("break should have been replaced by Goto")
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is BuiltinFunctionCallStatement -> transform(statement)
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is BuiltinFunctionPlaceholder -> throw FatalAstException("BuiltinFunctionPlaceholder should not occur in Ast here")
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is ConditionalBranch -> transform(statement)
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is Directive -> transform(statement)
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is ForLoop -> transform(statement)
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is FunctionCallStatement -> transform(statement)
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is GoSub -> transform(statement)
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is IfElse -> transform(statement)
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is InlineAssembly -> transform(statement)
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is Jump -> transform(statement)
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is Label -> transform(statement)
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is Pipe -> transform(statement)
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is PostIncrDecr -> transform(statement)
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is RepeatLoop -> transform(statement)
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is Return -> transform(statement)
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is Subroutine -> {
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if(statement.isAsmSubroutine)
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transformAsmSub(statement)
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else
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transformSub(statement)
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}
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is UntilLoop -> throw FatalAstException("until loops must have been converted to jumps")
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is VarDecl -> transform(statement)
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is When -> transform(statement)
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is WhileLoop -> throw FatalAstException("while loops must have been converted to jumps")
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}
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}
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private fun transformExpression(expr: Expression): PtNode {
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return when(expr) {
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is AddressOf -> transform(expr)
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is ArrayIndexedExpression -> transform(expr)
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is ArrayLiteral -> transform(expr)
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is BinaryExpression -> transform(expr)
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is BuiltinFunctionCall -> transform(expr)
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is CharLiteral -> throw FatalAstException("char literals should have been converted into bytes")
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is ContainmentCheck -> transform(expr)
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is DirectMemoryRead -> transform(expr)
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is FunctionCallExpression -> transform(expr)
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is IdentifierReference -> transform(expr)
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is NumericLiteral -> transform(expr)
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is PipeExpression -> transform(expr)
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is PrefixExpression -> transform(expr)
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is RangeExpression -> transform(expr)
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is StringLiteral -> transform(expr)
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is TypecastExpression -> transform(expr)
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}
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}
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private fun transform(srcAssign: Assignment): PtAssignment {
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val assign = PtAssignment(srcAssign.isAugmentable, srcAssign.position)
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assign.add(transform(srcAssign.target))
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assign.add(transformExpression(srcAssign.value))
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return assign
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}
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private fun transform(srcTarget: AssignTarget): PtAssignTarget {
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val target = PtAssignTarget(srcTarget.position)
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if(srcTarget.identifier!=null)
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target.add(transform(srcTarget.identifier!!))
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else if(srcTarget.arrayindexed!=null)
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target.add(transform(srcTarget.arrayindexed!!))
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else if(srcTarget.memoryAddress!=null)
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target.add(transform(srcTarget.memoryAddress!!))
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else
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throw FatalAstException("invalid AssignTarget")
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return target
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}
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private fun transform(identifier: IdentifierReference): PtIdentifier {
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val target=identifier.targetStatement(srcProgram)!! as INamedStatement
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val targetname = if(target.name in srcProgram.builtinFunctions.names)
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listOf("<builtin>", target.name)
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else
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target.scopedName
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return PtIdentifier(identifier.nameInSource, targetname, identifier.position)
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}
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private fun transform(srcBlock: Block): PtBlock {
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val block = PtBlock(srcBlock.name, srcBlock.address, srcBlock.isInLibrary, srcBlock.position)
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for (stmt in srcBlock.statements)
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block.add(transformStatement(stmt))
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return block
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}
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private fun transform(srcNode: BuiltinFunctionCallStatement): PtBuiltinFunctionCall {
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val call = PtBuiltinFunctionCall(srcNode.name, srcNode.position)
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for (arg in srcNode.args)
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call.add(transformExpression(arg))
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return call
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}
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private fun transform(srcBranch: ConditionalBranch): PtConditionalBranch {
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val branch = PtConditionalBranch(srcBranch.condition, srcBranch.position)
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val trueScope = PtNodeGroup()
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val falseScope = PtNodeGroup()
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for (stmt in srcBranch.truepart.statements)
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trueScope.add(transformStatement(stmt))
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for (stmt in srcBranch.elsepart.statements)
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falseScope.add(transformStatement(stmt))
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branch.add(trueScope)
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branch.add(falseScope)
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return branch
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}
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private fun transform(directive: Directive): PtDirective {
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val dir = PtDirective(directive.directive, directive.position)
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for (arg in directive.args) {
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dir.add(transform(arg))
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}
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return dir
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}
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private fun transform(arg: DirectiveArg): PtDirectiveArg =
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PtDirectiveArg(arg.str, arg.name, arg.int, arg.position)
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private fun transform(srcFor: ForLoop): PtForLoop {
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val forloop = PtForLoop(srcFor.position)
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forloop.add(transform(srcFor.loopVar))
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forloop.add(transformExpression(srcFor.iterable))
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val statements = PtNodeGroup()
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for (stmt in srcFor.body.statements)
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statements.add(transformStatement(stmt))
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forloop.add(statements)
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return forloop
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}
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private fun transform(srcCall: FunctionCallStatement): PtFunctionCall {
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val call = PtFunctionCall(true, srcCall.position)
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call.add(transform(srcCall.target))
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val args = PtNodeGroup()
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for (arg in srcCall.args)
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args.add(transformExpression(arg))
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call.add(args)
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return call
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}
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private fun transform(srcCall: FunctionCallExpression): PtFunctionCall {
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val call = PtFunctionCall(false, srcCall.position)
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call.add(transform(srcCall.target))
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val args = PtNodeGroup()
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for (arg in srcCall.args)
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args.add(transformExpression(arg))
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call.add(args)
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return call
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}
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private fun transform(gosub: GoSub): PtGosub {
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val identifier = if(gosub.identifier!=null) transform(gosub.identifier!!) else null
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return PtGosub(identifier,
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gosub.address,
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gosub.generatedLabel,
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gosub.position)
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}
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private fun transform(srcIf: IfElse): PtIfElse {
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val ifelse = PtIfElse(srcIf.position)
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ifelse.add(transformExpression(srcIf.condition))
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val ifScope = PtNodeGroup()
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val elseScope = PtNodeGroup()
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for (stmt in srcIf.truepart.statements)
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ifScope.add(transformStatement(stmt))
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for (stmt in srcIf.elsepart.statements)
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elseScope.add(transformStatement(stmt))
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ifelse.add(ifScope)
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ifelse.add(elseScope)
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return ifelse
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}
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private fun transform(srcNode: InlineAssembly): PtInlineAssembly =
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PtInlineAssembly(srcNode.assembly, srcNode.position)
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private fun transform(srcJump: Jump): PtJump {
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val identifier = if(srcJump.identifier!=null) transform(srcJump.identifier!!) else null
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return PtJump(identifier,
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srcJump.address,
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srcJump.generatedLabel,
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srcJump.position)
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}
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private fun transform(label: Label): PtLabel =
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PtLabel(label.name, label.position)
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private fun transform(srcPipe: Pipe): PtPipe {
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val pipe = PtPipe(srcPipe.position)
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pipe.add(transformExpression(srcPipe.source))
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for (segment in srcPipe.segments)
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pipe.add(transformExpression(segment))
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return pipe
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}
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private fun transform(src: PostIncrDecr): PtPostIncrDecr {
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val post = PtPostIncrDecr(src.operator, src.position)
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post.add(transform(src.target))
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return post
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}
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private fun transform(srcRepeat: RepeatLoop): PtRepeatLoop {
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if(srcRepeat.iterations==null)
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throw FatalAstException("repeat-forever loop should have been replaced with label+jump")
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val repeat = PtRepeatLoop(srcRepeat.position)
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repeat.add(transformExpression(srcRepeat.iterations!!))
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for (statement in srcRepeat.body.statements) {
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repeat.add(transformStatement(statement))
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}
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return repeat
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}
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private fun transform(srcNode: Return): PtReturn {
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val ret = PtReturn(srcNode.position)
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if(srcNode.value!=null)
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ret.add(transformExpression(srcNode.value!!))
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return ret
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}
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private fun transformAsmSub(srcSub: Subroutine): PtAsmSub {
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val sub = PtAsmSub(srcSub.name,
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srcSub.asmAddress,
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srcSub.asmClobbers,
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srcSub.asmParameterRegisters,
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srcSub.asmReturnvaluesRegisters,
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srcSub.inline,
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srcSub.position)
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if(srcSub.asmAddress==null) {
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var combinedAsm = ""
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for (asm in srcSub.statements)
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combinedAsm += (asm as InlineAssembly).assembly + "\n"
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if(combinedAsm.isNotEmpty())
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sub.add(PtInlineAssembly(combinedAsm, srcSub.statements[0].position))
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else
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sub.add(PtInlineAssembly("", srcSub.position))
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}
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return sub
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}
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private fun transformSub(srcSub: Subroutine): PtSub {
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val sub = PtSub(srcSub.name,
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srcSub.parameters.map { PtSubroutineParameter(it.name, it.type, it.position) },
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srcSub.returntypes,
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srcSub.inline,
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srcSub.position)
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for (statement in srcSub.statements)
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sub.add(transformStatement(statement))
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return sub
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}
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private fun transform(srcVar: VarDecl): PtNode {
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return when(srcVar.type) {
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VarDeclType.VAR -> PtVariable(srcVar.name, srcVar.datatype, srcVar.position)
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VarDeclType.CONST -> PtConstant(srcVar.name, srcVar.datatype, (srcVar.value as NumericLiteral).number, srcVar.position)
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VarDeclType.MEMORY -> PtMemMapped(srcVar.name, srcVar.datatype, (srcVar.value as NumericLiteral).number.toUInt(), srcVar.position)
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}
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}
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private fun transform(srcWhen: When): PtWhen {
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val w = PtWhen(srcWhen.position)
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w.add(transformExpression(srcWhen.condition))
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val choices = PtNodeGroup()
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for (choice in srcWhen.choices)
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choices.add(transform(choice))
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w.add(choices)
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return w
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}
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private fun transform(srcChoice: WhenChoice): PtWhenChoice {
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val choice = PtWhenChoice(srcChoice.values==null, srcChoice.position)
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val values = PtNodeGroup()
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val statements = PtNodeGroup()
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if(!choice.isElse) {
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for (value in srcChoice.values!!)
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values.add(transformExpression(value))
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}
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for (stmt in srcChoice.statements.statements)
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statements.add(transformStatement(stmt))
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choice.add(values)
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choice.add(statements)
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return choice
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}
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private fun transform(src: AddressOf): PtAddressOf {
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val addr = PtAddressOf(src.position)
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addr.add(transform(src.identifier))
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return addr
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}
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private fun transform(srcArr: ArrayIndexedExpression): PtArrayIndexer {
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val array = PtArrayIndexer(srcArr.position)
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array.add(transform(srcArr.arrayvar))
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array.add(transformExpression(srcArr.indexer.indexExpr))
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return array
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}
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private fun transform(srcArr: ArrayLiteral): PtArrayLiteral {
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val arr = PtArrayLiteral(srcArr.type.getOrElse { throw FatalAstException("array must know its type") }, srcArr.position)
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for (elt in srcArr.value)
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arr.add(transformExpression(elt))
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return arr
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}
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private fun transform(srcExpr: BinaryExpression): PtBinaryExpression {
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val expr = PtBinaryExpression(srcExpr.operator, srcExpr.position)
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expr.add(transformExpression(srcExpr.left))
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expr.add(transformExpression(srcExpr.right))
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return expr
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}
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private fun transform(srcCall: BuiltinFunctionCall): PtBuiltinFunctionCall {
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val call = PtBuiltinFunctionCall(srcCall.name, srcCall.position)
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for (arg in srcCall.args)
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call.add(transformExpression(arg))
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return call
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}
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private fun transform(srcCheck: ContainmentCheck): PtContainmentCheck {
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val check = PtContainmentCheck(srcCheck.position)
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check.add(transformExpression(srcCheck.element))
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check.add(transformExpression(srcCheck.iterable))
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return check
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}
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private fun transform(memory: DirectMemoryWrite): PtMemoryByte {
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val mem = PtMemoryByte(memory.position)
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mem.add(transformExpression(memory.addressExpression))
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return mem
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}
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private fun transform(memory: DirectMemoryRead): PtMemoryByte {
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val mem = PtMemoryByte(memory.position)
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mem.add(transformExpression(memory.addressExpression))
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return mem
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}
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private fun transform(number: NumericLiteral): PtNumber =
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PtNumber(number.type, number.number, number.position)
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private fun transform(srcPipe: PipeExpression): PtPipe {
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val pipe = PtPipe(srcPipe.position)
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pipe.add(transformExpression(srcPipe.source))
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for (segment in srcPipe.segments)
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pipe.add(transformExpression(segment))
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return pipe
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}
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private fun transform(srcPrefix: PrefixExpression): PtPrefix {
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val prefix = PtPrefix(srcPrefix.operator, srcPrefix.position)
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prefix.add(transformExpression(srcPrefix.expression))
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return prefix
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}
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private fun transform(srcRange: RangeExpression): PtRange {
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val range=PtRange(srcRange.position)
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range.add(transformExpression(srcRange.from))
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range.add(transformExpression(srcRange.to))
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range.add(transformExpression(srcRange.step))
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return range
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}
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private fun transform(srcString: StringLiteral): PtString =
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PtString(srcString.value, srcString.encoding, srcString.position)
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private fun transform(srcCast: TypecastExpression): PtTypeCast {
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val cast = PtTypeCast(srcCast.type, srcCast.position)
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cast.add(transformExpression(srcCast.expression))
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return cast
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}
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} |