diff options
Diffstat (limited to 'compiler/sem.nim')
| -rwxr-xr-x | compiler/sem.nim | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/compiler/sem.nim b/compiler/sem.nim index d92c1657d..8d0e4e168 100755 --- a/compiler/sem.nim +++ b/compiler/sem.nim @@ -15,7 +15,7 @@ import magicsys, parser, nversion, nimsets, semfold, importer, procfind, lookups, rodread, pragmas, passes, semdata, semtypinst, sigmatch, semthreads, intsets, transf, evals, idgen, aliases, cgmeth, lambdalifting, - evaltempl + evaltempl, patterns proc semPass*(): TPass # implementation @@ -102,6 +102,19 @@ proc semConstExpr(c: PContext, n: PNode): PNode = return n result = evalTypedExpr(c, e) +proc applyPatterns(c: PContext, n: PNode): PNode = + # fast exit: + if c.patterns.len == 0: return n + result = n + # we apply the last pattern first, so that pattern overriding is possible; + # however the resulting AST would better not trigger the old rule then + # anymore ;-) + for i in countdown(<c.patterns.len, 0): + let x = applyRule(c, c.patterns[i], result) + if not isNil(x): + assert x.kind == nkCall + result = semExpr(c, x) + include seminst, semcall proc semAfterMacroCall(c: PContext, n: PNode, s: PSym): PNode = |