return self.modelbuilder.force_get_primitive_method(current_node, name, recv.mclass, self.mainmodule)
end
- # Is a return executed?
- # Set this mark to skip the evaluation until the end of the specified method frame
- var returnmark: nullable FRAME = null
-
- # Is a break or a continue executed?
+ # Is a return, a break or a continue executed?
# Set this mark to skip the evaluation until a labeled statement catch it with `is_escape`
var escapemark: nullable EscapeMark = null
+ # Is an abort being executed ?
+ # Set this mark to return to the last `catch` bloc or effectively aborting if there isn't any
+ var catch_mark = new EscapeMark
+
+ # The count of `catch` blocs that have been encountered and can catch an abort
+ var catch_count = 0
+
# Is a return or a break or a continue executed?
# Use this function to know if you must skip the evaluation of statements
- fun is_escaping: Bool do return returnmark != null or escapemark != null
+ fun is_escaping: Bool do return escapemark != null
# The value associated with the current return/break/continue, if any.
# Set the value when you set a escapemark.
# Return `null` if one of the evaluation of the arguments return null.
fun varargize(mpropdef: MMethodDef, map: nullable SignatureMap, recv: Instance, args: SequenceRead[AExpr]): nullable Array[Instance]
do
- var msignature = mpropdef.new_msignature or else mpropdef.msignature.as(not null)
+ var msignature = mpropdef.msignature.as(not null)
var res = new Array[Instance]
res.add(recv)
fun callsite(callsite: nullable CallSite, arguments: Array[Instance]): nullable Instance
do
if callsite == null then return null
- var initializers = callsite.mpropdef.initializers
- if not initializers.is_empty then
- var recv = arguments.first
- var i = 1
- for p in initializers do
- if p isa MMethod then
- var args = [recv]
- for x in p.intro.msignature.mparameters do
- args.add arguments[i]
- i += 1
- end
- self.send(p, args)
- else if p isa MAttribute then
- assert recv isa MutableInstance
- write_attribute(p, recv, arguments[i])
- i += 1
- else abort
- end
- assert i == arguments.length
-
- return send(callsite.mproperty, [recv])
- end
return send(callsite.mproperty, arguments)
end
var f = v.new_frame(self, mpropdef, args)
var res = call_commons(v, mpropdef, args, f)
v.frames.shift
- if v.returnmark == f then
- v.returnmark = null
+ if v.is_escape(self.return_mark) then
res = v.escapevalue
- v.escapevalue = null
return res
end
return res
return v.int32_instance(recvval.to_i32)
else if pname == "to_u32" then
return v.uint32_instance(recvval.to_u32)
- else if pname == "rand" then
- var res = recvval.rand
- return v.int_instance(res)
end
else if cname == "Byte" then
var recvval = args[0].to_b
return v.float_instance(args[0].to_f.log)
else if pname == "pow" then
return v.float_instance(args[0].to_f.pow(args[1].to_f))
- else if pname == "rand" then
- return v.float_instance(args[0].to_f.rand)
else if pname == "abs" then
return v.float_instance(args[0].to_f.abs)
else if pname == "hypot_with" then
val = v.expr(nexpr)
else if nblock != null then
v.stmt(nblock)
- assert v.returnmark == f
+ assert v.escapemark == return_mark
val = v.escapevalue
- v.returnmark = null
- v.escapevalue = null
+ v.escapemark = null
else
abort
end
v.call(superpd, arguments)
end
return null
+ else if mclassdef.auto_init == mpropdef then
+ var recv = arguments.first
+ var initializers = mpropdef.initializers
+ var no_init = false
+ if not initializers.is_empty then
+ var i = 1
+ for p in initializers do
+ if p isa MMethod then
+ var args = [recv]
+ for x in p.intro.msignature.mparameters do
+ args.add arguments[i]
+ i += 1
+ end
+ v.send(p, args)
+ if p.intro.is_calling_init then no_init = true
+ else if p isa MAttribute then
+ assert recv isa MutableInstance
+ v.write_attribute(p, recv, arguments[i])
+ i += 1
+ else abort
+ end
+ assert i == arguments.length
+ end
+ if not no_init then v.send(mclass.the_root_init_mmethod.as(not null), [recv])
+ return null
else
abort
end
end
end
-redef class AReturnExpr
- redef fun stmt(v)
- do
- var ne = self.n_expr
- if ne != null then
- var i = v.expr(ne)
- if i == null then return
- v.escapevalue = i
- end
- v.returnmark = v.frame
- end
-end
-
redef class AAbortExpr
redef fun stmt(v)
do
- fatal(v, "Aborted")
- exit(1)
+ # Abort as asked if there is no `catch` bloc
+ if v.catch_count <= 0 then
+ fatal(v, "Aborted")
+ exit(1)
+ else
+ # Abort mode, skipping everything until a `catch` bloc is reached
+ v.escapemark = v.catch_mark
+ end
end
end
redef class ADoExpr
redef fun stmt(v)
do
+ # If this bloc has a catch, register it in the counter
+ if self.n_catch != null then v.catch_count += 1
v.stmt(self.n_block)
v.is_escape(self.break_mark) # Clear the break (if any)
+ if self.n_catch != null then
+ v.catch_count -= 1
+ # Are we in abort mode? then this catch is executing
+ if v.is_escape(v.catch_mark) then v.stmt(self.n_catch)
+ end
end
end
v.callsite(method_start, [expr])
v.stmt(self.n_block)
v.is_escape(self.break_mark) # Clear the break
+
+ # Execute the finally without an escape
+ var old_mark = v.escapemark
+ v.escapemark = null
v.callsite(method_finish, [expr])
+ # Restore the escape unless another escape was provided
+ if v.escapemark == null then v.escapemark = old_mark
end
end
nitlanguage / nit.git / blobdiff