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discard """
nimout: '''
Infix
Ident "=>"
Call
Ident "name"
Ident "a"
ExprColonExpr
Ident "b"
Ident "cint"
NilLit
macrocache ok
'''
output: '''
x = 10
x + y = 30
proc foo[T, N: static[int]]()
proc foo[T; N: static[int]]()
a[0]: 42
a[1]: 45
x: some string
([("key", "val"), ("keyB", "2")], [("val", "key"), ("2", "keyB")])
([("key", "val"), ("keyB", "2")], [("val", "key"), ("2", "keyB")])
'''
"""
import macros, sugar, macrocache
block tdump:
let
x = 10
y = 20
dump x
dump(x + y)
block texprcolonexpr:
macro def(x): untyped =
echo treeRepr(x)
def name(a, b:cint) => nil
block tgenericparams:
macro test():string =
let expr0 = "proc foo[T, N: static[int]]()"
let expr1 = "proc foo[T; N: static[int]]()"
newLit($toStrLit(parseExpr(expr0)) & "\n" & $toStrLit(parseExpr(expr1)))
echo test()
block tidgen:
# Test compile-time state in same module
var gid {.compileTime.} = 3
macro genId(): int =
result = newIntLitNode(gid)
inc gid
proc Id1(): int {.compileTime.} = return genId()
proc Id2(): int {.compileTime.} = return genId()
doAssert Id1() == 3
doAssert Id2() == 4
block tlexerex:
macro match(s: cstring|string; pos: int; sections: varargs[untyped]): untyped =
for sec in sections:
expectKind sec, nnkOfBranch
expectLen sec, 2
result = newStmtList()
var input = "the input"
var pos = 0
match input, pos:
of r"[a-zA-Z_]\w+": echo "an identifier"
of r"\d+": echo "an integer"
of r".": echo "something else"
block tlineinfo:
# issue #5617, feature request
type Test = object
macro mixer(n: typed): untyped =
let x = newIdentNode("echo")
x.copyLineInfo(n)
result = newLit(x.lineInfo == n.lineInfo)
var z = mixer(Test)
doAssert z
block tdebugstmt:
macro debug(n: varargs[untyped]): untyped =
result = newNimNode(nnkStmtList, n)
for i in 0..n.len-1:
add(result, newCall("write", newIdentNode("stdout"), toStrLit(n[i])))
add(result, newCall("write", newIdentNode("stdout"), newStrLitNode(": ")))
add(result, newCall("writeLine", newIdentNode("stdout"), n[i]))
var
a: array[0..10, int]
x = "some string"
a[0] = 42
a[1] = 45
debug(a[0], a[1], x)
const
pairs = {"key": "val", "keyB": "2"}
macro bilookups(arg: static[openArray[(string, string)]]): untyped =
var a = newTree(nnkBracket)
var b = newTree(nnkBracket)
for (k, v) in items(arg):
a.add(newTree(nnkTupleConstr, newLit k, newLit v))
b.add(newTree(nnkTupleConstr, newLit v, newLit k))
result = newTree(nnkTupleConstr, a, b)
macro bilookups2(arg: untyped): untyped =
var a = newTree(nnkBracket)
var b = newTree(nnkBracket)
arg.expectKind(nnkTableConstr)
for x in items(arg):
x.expectKind(nnkExprColonExpr)
a.add(newTree(nnkTupleConstr, x[0], x[1]))
b.add(newTree(nnkTupleConstr, x[1], x[0]))
result = newTree(nnkTupleConstr, a, b)
const cnst1 = bilookups(pairs)
echo cnst1
const cnst2 = bilookups2({"key": "val", "keyB": "2"})
echo cnst2
# macrocache #11404
const
mcTable = CacheTable"nimTest"
mcSeq = CacheSeq"nimTest"
mcCounter = CacheCounter"nimTest"
static:
doAssert(mcCounter.value == 0) # CacheCounter.value
mcCounter.inc # CacheCounter.inc
doAssert(mcCounter.value == 1) # CacheCounter.value
let a = newLit(1)
let b = newLit(2)
let c = newLit(3)
let d = newLit(4)
mcSeq.add a # CacheSeq.add
mcSeq.add b # CacheSeq.add
mcSeq.add c # CacheSeq.add
doAssert(mcSeq.len == 3) # CacheSeq.len
#doAssert(c in mcSeq) # CacheSeq.contains
#doAssert(d notin mcSeq) # CacheSeq.contains
mcSeq.incl d # CacheSeq.incl
doAssert(mcSeq.len == 4) # CacheSeq.len
mcSeq.incl c # CacheSeq.incl
doAssert(mcSeq.len == 4) # CacheSeq.len
doAssert(mcSeq[3] == d) # CacheSeq.[]
#doAssert(mcSeq.pop() == d)# CacheSeq.pop
#doAssert(mcSeq.len == 3) # CacheSeq.len
doAssert(mcTable.len == 0) # CacheTable.len
mcTable["a"] = a # CacheTable.[]=
doAssert(mcTable.len == 1) # CacheTable.len
doAssert(mcTable["a"] == a) # CacheTable.[]
#doAssert("a" in mcTable) # CacheTable.contains
#doAssert(mcTable.hasKey("a"))# CacheTable.hasKey
for k, v in mcTable: # CacheTable.items
doAssert(k == "a")
doAssert(v == a)
echo "macrocache ok"
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