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added syntax error for non-constant array size declaration

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Irmen de Jong 2020-12-06 17:02:56 +01:00
parent 6b5211ad12
commit 260bcd3a55
2 changed files with 26 additions and 15 deletions
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35
compiler/src/prog8/ast/processing/AstChecker.kt
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@ -604,23 +604,28 @@ internal class AstChecker(private val program: Program,
} }
} }
// array length limits // array length limits and constant lenghts
if(decl.isArray) { if(decl.isArray) {
val length = decl.arraysize!!.constIndex() ?: 1 val length = decl.arraysize!!.constIndex()
when (decl.datatype) { if(length==null)
DataType.STR, DataType.ARRAY_UB, DataType.ARRAY_B -> { err("array length must be a constant")
if(length==0 || length>256) else {
err("string and byte array length must be 1-256") when (decl.datatype) {
DataType.STR, DataType.ARRAY_UB, DataType.ARRAY_B -> {
if (length == 0 || length > 256)
err("string and byte array length must be 1-256")
}
DataType.ARRAY_UW, DataType.ARRAY_W -> {
if (length == 0 || length > 128)
err("word array length must be 1-128")
}
DataType.ARRAY_F -> {
if (length == 0 || length > 51)
err("float array length must be 1-51")
}
else -> {
}
} }
DataType.ARRAY_UW, DataType.ARRAY_W -> {
if(length==0 || length>128)
err("word array length must be 1-128")
}
DataType.ARRAY_F -> {
if(length==0 || length>51)
err("float array length must be 1-51")
}
else -> {}
} }
} }

6
examples/test.p8
View File

@ -5,6 +5,12 @@
main { main {
sub start() { sub start() {
const ubyte size = 100
ubyte[size+10] bytes
txt.print("hello\n") txt.print("hello\n")
ubyte dummy = bytes[0]
} }
} }