feat: add gr context for fexpr

Author: oscarbenjamin

src/flint/types/gr.pxd

@@ -59,6 +59,7 @@ from flint.flintlib.functions.gr_domains cimport (
     gr_ctx_init_complex_float_acf,
     gr_ctx_init_real_arb,
     gr_ctx_init_complex_acb,
+    gr_ctx_init_fexpr,
 
     _gr_ctx_qqbar_set_limits,
 )
@@ -402,6 +403,25 @@ cdef class _gr_fmpzi_ctx(gr_scalar_ctx):
         return ctx
 
 
+@cython.no_gc
+cdef class _gr_fexpr_ctx(gr_scalar_ctx):
+
+    @staticmethod
+    cdef inline _gr_fexpr_ctx _new():
+        cdef _gr_fexpr_ctx ctx
+        ctx = _gr_fexpr_ctx.__new__(_gr_fexpr_ctx)
+        gr_ctx_init_fexpr(ctx.ctx_t)
+        ctx._init = True
+        return ctx
+
+
+# The global contexts for use in cython code:
+cdef _gr_fmpz_ctx gr_fmpz_ctx_c
+cdef _gr_fmpq_ctx gr_fmpq_ctx_c
+cdef _gr_fmpzi_ctx gr_fmpzi_ctx_c
+cdef _gr_fexpr_ctx gr_fexpr_ctx_c
+
+
 @cython.no_gc
 cdef class gr_nmod_ctx(gr_scalar_ctx):
     cdef ulong n
@@ -683,13 +703,6 @@ cdef class gr_complex_acb_ctx(gr_scalar_ctx):
         return ctx
 
 
-# @cython.no_gc
-# cdef class gr_fexpr_ctx(gr_scalar_ctx):
-#
-#    @staticmethod
-#    cdef gr_fexpr_ctx _new()
-
-
 # @cython.no_gc
 # cdef class _gr_fmpz_poly_ctx(gr_poly_ctx):
 #
@@ -711,12 +724,6 @@ cdef class gr_complex_acb_ctx(gr_scalar_ctx):
 #     cdef _gr_gr_poly_ctx _new()
 
 
-# The global contexts for use in cython code:
-cdef _gr_fmpz_ctx gr_fmpz_ctx_c
-cdef _gr_fmpq_ctx gr_fmpq_ctx_c
-cdef _gr_fmpzi_ctx gr_fmpzi_ctx_c
-
-
 @cython.no_gc
 cdef class gr(flint_scalar):
     cdef gr_ptr pval

src/flint/types/gr.pyx

@@ -181,9 +181,17 @@ cdef class gr_matrix_ring_ctx(gr_ctx):
     pass
 
 
-cdef _gr_fmpz_ctx gr_fmpz_ctx_c
-cdef _gr_fmpq_ctx gr_fmpq_ctx_c
-cdef _gr_fmpzi_ctx gr_fmpzi_ctx_c
+# Global contexts for Cython code
+cdef _gr_fmpz_ctx gr_fmpz_ctx_c = _gr_fmpz_ctx._new()
+cdef _gr_fmpq_ctx gr_fmpq_ctx_c = _gr_fmpq_ctx._new()
+cdef _gr_fmpzi_ctx gr_fmpzi_ctx_c = _gr_fmpzi_ctx._new()
+cdef _gr_fexpr_ctx gr_fexpr_ctx_c = _gr_fexpr_ctx._new()
+
+# Global contexts for Python code
+gr_fmpz_ctx = gr_fmpz_ctx_c
+gr_fmpq_ctx = gr_fmpq_ctx_c
+gr_fmpzi_ctx = gr_fmpzi_ctx_c
+gr_fexpr_ctx = gr_fexpr_ctx_c
 
 
 @cython.no_gc
@@ -219,15 +227,15 @@ cdef class _gr_fmpzi_ctx(gr_scalar_ctx):
         return "gr_fmpzi_ctx"
 
 
-# Global contexts for Cython code
-gr_fmpz_ctx_c = _gr_fmpz_ctx._new()
-gr_fmpq_ctx_c = _gr_fmpq_ctx._new()
-gr_fmpzi_ctx_c = _gr_fmpzi_ctx._new()
+@cython.no_gc
+cdef class _gr_fexpr_ctx(gr_scalar_ctx):
 
-# Global contexts for Python code
-gr_fmpz_ctx = gr_fmpz_ctx_c
-gr_fmpq_ctx = gr_fmpq_ctx_c
-gr_fmpzi_ctx = gr_fmpzi_ctx_c
+    @staticmethod
+    def new() -> _gr_fexpr_ctx:
+        return gr_fexpr_ctx_c
+
+    def __repr__(self):
+        return "gr_fexpr_ctx"
 
 
 @cython.no_gc