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check memory() calls before entering codegen

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This commit is contained in:
Irmen de Jong 2022-08-21 15:37:05 +02:00
parent c33dc0f3be
commit 6b41734d6a
2 changed files with 28 additions and 4 deletions
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1
codeGenVirtual/src/prog8/codegen/virtual/ExpressionGen.kt
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@ -3,7 +3,6 @@ package prog8.codegen.virtual
import prog8.code.StRomSub
import prog8.code.StStaticVariable
import prog8.code.StSub
import prog8.code.StSubroutineParameter
import prog8.code.ast.*
import prog8.code.core.*
import prog8.vm.Opcode

31
compiler/src/prog8/compiler/astprocessing/VerifyFunctionArgTypes.kt
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@ -2,9 +2,7 @@ package prog8.compiler.astprocessing
import prog8.ast.IFunctionCall
import prog8.ast.Program
import prog8.ast.expressions.Expression
import prog8.ast.expressions.FunctionCallExpression
import prog8.ast.expressions.TypecastExpression
import prog8.ast.expressions.*
import prog8.ast.statements.*
import prog8.ast.walk.IAstVisitor
import prog8.code.core.DataType
@ -14,16 +12,43 @@ import prog8.compiler.BuiltinFunctions
internal class VerifyFunctionArgTypes(val program: Program, val errors: IErrorReporter) : IAstVisitor {
override fun visit(program: Program) {
super.visit(program)
// detect invalid (double) memory slabs
for(slab in memorySlabs) {
val other = memorySlabs.first { it.name==slab.name }
if(other!==slab && (other.size!=slab.size || other.align!=slab.align)) {
errors.err("memory block '${slab.name}' already exists with a different size and/or alignment at ${other.position}", slab.position)
}
}
}
private class Slab(val name: String, val size: Int, val align: Int, val position: Position)
private val memorySlabs = mutableListOf<Slab>()
override fun visit(functionCallExpr: FunctionCallExpression) {
val error = checkTypes(functionCallExpr as IFunctionCall, program)
if(error!=null)
errors.err(error.first, error.second)
else {
if(functionCallExpr.target.nameInSource==listOf("memory")) {
val name = (functionCallExpr.args[0] as StringLiteral).value
val size = (functionCallExpr.args[1] as NumericLiteral).number.toInt()
val align = (functionCallExpr.args[2] as NumericLiteral).number.toInt()
memorySlabs.add(Slab(name, size, align, functionCallExpr.position))
}
}
super.visit(functionCallExpr)
}
override fun visit(functionCallStatement: FunctionCallStatement) {
val error = checkTypes(functionCallStatement as IFunctionCall, program)
if(error!=null)
errors.err(error.first, error.second)
super.visit(functionCallStatement)
}
companion object {