diff options
Diffstat (limited to 'lib/core/macros.nim')
| -rw-r--r-- | lib/core/macros.nim | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/lib/core/macros.nim b/lib/core/macros.nim index 292e8dd3c..d584b1ac5 100644 --- a/lib/core/macros.nim +++ b/lib/core/macros.nim @@ -78,7 +78,7 @@ type nnkBreakState NimNodeKinds* = set[NimNodeKind] - NimTypeKind* = enum + NimTypeKind* = enum # some types are no longer used, see ast.nim ntyNone, ntyBool, ntyChar, ntyEmpty, ntyArrayConstr, ntyNil, ntyExpr, ntyStmt, ntyTypeDesc, ntyGenericInvocation, ntyGenericBody, ntyGenericInst, @@ -90,8 +90,8 @@ type ntyInt8, ntyInt16, ntyInt32, ntyInt64, ntyFloat, ntyFloat32, ntyFloat64, ntyFloat128, ntyUInt, ntyUInt8, ntyUInt16, ntyUInt32, ntyUInt64, - ntyBigNum, - ntyConst, ntyMutable, ntyVarargs, + ntyUnused0, ntyUnused1, ntyUnused2, + ntyVarargs, ntyUnused, ntyError, ntyBuiltinTypeClass, ntyConcept, ntyConceptInst, ntyComposite, @@ -890,6 +890,30 @@ proc boolVal*(n: NimNode): bool {.compileTime, noSideEffect.} = if n.kind == nnkIntLit: n.intVal != 0 else: n == bindSym"true" # hacky solution for now +macro expandMacros*(body: typed): untyped = + ## Expands one level of macro - useful for debugging. + ## Can be used to inspect what happens when a macro call is expanded, + ## without altering its result. + ## + ## For instance, + ## + ## .. code-block:: nim + ## import future, macros + ## + ## let + ## x = 10 + ## y = 20 + ## expandMacros: + ## dump(x + y) + ## + ## will actually dump `x + y`, but at the same time will print at + ## compile time the expansion of the ``dump`` macro, which in this + ## case is ``debugEcho ["x + y", " = ", x + y]``. + template inner(x: untyped): untyped = x + + result = getAst(inner(body)) + echo result.toStrLit + when not defined(booting): template emit*(e: static[string]): untyped {.deprecated.} = ## accepts a single string argument and treats it as nim code |