def attribute_lookup(self, struct, name, builder):
"""
Helper for getting the address of an attribute lookup, used both when
setting and getting attributes
"""
llvm_struct = self.compile_expr(struct, builder)
struct_t = struct.type
field_pos = struct_t.field_pos(name)
field_type = struct_t.field_type(name)
indices = [int32(0), int32(field_pos)]
ptr_name = "%s_ptr" % name
ptr = builder.gep(llvm_struct, indices, ptr_name)
return ptr, field_type
def attribute_lookup(self, struct, name, builder): """ Helper for getting the address of an attribute lookup, used both when setting and getting attributes """ llvm_struct = self.compile_expr(struct, builder) struct_t = struct.type field_pos = struct_t.field_pos(name) field_type = struct_t.field_type(name) indices = [int32(0), int32(field_pos)] ptr_name = "%s_ptr" % name ptr = builder.gep(llvm_struct, indices, ptr_name) return ptr, field_type
def compile_Struct(self, expr, builder, local = False):
struct_t = expr.type
llvm_struct_t = llvm_value_type(struct_t)
name = expr.type.node_type()
if local:
struct_ptr = builder.alloca(llvm_struct_t, name + "_local_ptr")
else:
struct_ptr = builder.malloc(llvm_struct_t, name + "_ptr")
for (i, elt) in enumerate(expr.args):
field_name, field_type = struct_t._fields_[i]
assert elt.type == field_type, \
"Mismatch between expected type %s and given %s for field '%s' " % \
(field_type, elt.type, field_name)
elt_ptr = builder.gep(struct_ptr, [int32(0), int32(i)], "field%d_ptr" % i)
llvm_elt = self.compile_expr(elt, builder)
builder.store(llvm_elt, elt_ptr)
return struct_ptr
def compile_Struct(self, expr, builder, local=False):
struct_t = expr.type
llvm_struct_t = llvm_value_type(struct_t)
name = expr.type.node_type()
if local:
struct_ptr = builder.alloca(llvm_struct_t, name + "_local_ptr")
else:
struct_ptr = builder.malloc(llvm_struct_t, name + "_ptr")
for (i, elt) in enumerate(expr.args):
field_name, field_type = struct_t._fields_[i]
assert elt.type == field_type, \
"Mismatch between expected type %s and given %s for field '%s' " % \
(field_type, elt.type, field_name)
elt_ptr = builder.gep(struct_ptr, [int32(0), int32(i)],
"field%d_ptr" % i)
llvm_elt = self.compile_expr(elt, builder)
builder.store(llvm_elt, elt_ptr)
return struct_ptr
