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from std/private/digitsutils import addInt
template toLocation*(result: var string, file: string | cstring, line: int, col: int) =
## avoids spurious allocations
# Hopefully this can be re-used everywhere so that if a user needs to customize,
# it can be done in a single place.
result.add file
if line > 0:
result.add "("
addInt(result, line)
if col > 0:
result.add ", "
addInt(result, col)
result.add ")"
proc isNamedTuple(T: typedesc): bool {.magic: "TypeTrait".}
template tupleObjectDollar*[T: tuple | object](result: var string, x: T) =
result = "("
const isNamed = T is object or isNamedTuple(typeof(T))
var count {.used.} = 0
for name, value in fieldPairs(x):
if count > 0: result.add(", ")
when isNamed:
result.add(name)
result.add(": ")
count.inc
when compiles($value):
when value isnot string and value isnot seq and compiles(value.isNil):
if value.isNil: result.add "nil"
else: result.addQuoted(value)
else:
result.addQuoted(value)
else:
result.add("...")
when not isNamed:
if count == 1:
result.add(",") # $(1,) should print as the semantically legal (1,)
result.add(")")
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