Apple-2-SW/prog8
1
0
Fork 0
mirror of https://github.com/irmen/prog8.git synced 2024-09-07 19:54:26 +00:00
Code Issues Projects Releases Wiki Activity

added syntax error for non-constant array size declaration

Browse Source
This commit is contained in:
Irmen de Jong 2020-12-06 17:02:56 +01:00
parent 6b5211ad12
commit 260bcd3a55
2 changed files with 26 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
compiler/src/prog8/ast/processing/AstChecker.kt
View File

@ -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()
if(length==null)
err("array length must be a constant")
else {
when (decl.datatype) { when (decl.datatype) {
DataType.STR, DataType.ARRAY_UB, DataType.ARRAY_B -> { DataType.STR, DataType.ARRAY_UB, DataType.ARRAY_B -> {
if(length==0 || length>256) if (length == 0 || length > 256)
err("string and byte array length must be 1-256") err("string and byte array length must be 1-256")
} }
DataType.ARRAY_UW, DataType.ARRAY_W -> { DataType.ARRAY_UW, DataType.ARRAY_W -> {
if(length==0 || length>128) if (length == 0 || length > 128)
err("word array length must be 1-128") err("word array length must be 1-128")
} }
DataType.ARRAY_F -> { DataType.ARRAY_F -> {
if(length==0 || length>51) if (length == 0 || length > 51)
err("float array length must be 1-51") err("float array length must be 1-51")
} }
else -> {} 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]
} }
} }