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added syntax error for non-constant array size declaration
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@ -604,23 +604,28 @@ internal class AstChecker(private val program: Program,
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}
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}
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}
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}
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// array length limits
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// array length limits and constant lenghts
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if(decl.isArray) {
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if(decl.isArray) {
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val length = decl.arraysize!!.constIndex() ?: 1
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val length = decl.arraysize!!.constIndex()
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if(length==null)
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err("array length must be a constant")
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else {
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when (decl.datatype) {
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when (decl.datatype) {
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DataType.STR, DataType.ARRAY_UB, DataType.ARRAY_B -> {
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DataType.STR, DataType.ARRAY_UB, DataType.ARRAY_B -> {
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if(length==0 || length>256)
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if (length == 0 || length > 256)
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err("string and byte array length must be 1-256")
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err("string and byte array length must be 1-256")
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}
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}
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DataType.ARRAY_UW, DataType.ARRAY_W -> {
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DataType.ARRAY_UW, DataType.ARRAY_W -> {
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if(length==0 || length>128)
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if (length == 0 || length > 128)
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err("word array length must be 1-128")
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err("word array length must be 1-128")
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}
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}
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DataType.ARRAY_F -> {
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DataType.ARRAY_F -> {
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if(length==0 || length>51)
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if (length == 0 || length > 51)
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err("float array length must be 1-51")
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err("float array length must be 1-51")
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}
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}
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else -> {}
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else -> {
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}
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}
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}
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}
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}
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}
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@ -5,6 +5,12 @@
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main {
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main {
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sub start() {
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sub start() {
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const ubyte size = 100
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ubyte[size+10] bytes
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txt.print("hello\n")
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txt.print("hello\n")
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ubyte dummy = bytes[0]
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}
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}
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}
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}
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