import semantize
private import parser::tables
import mixin
+import primitive_types
redef class ToolContext
# --discover-call-trace
init
do
- self.true_instance = new PrimitiveInstance[Bool](mainmodule.bool_type, true)
- init_instance_primitive(self.true_instance)
- self.false_instance = new PrimitiveInstance[Bool](mainmodule.bool_type, false)
- init_instance_primitive(self.false_instance)
- self.null_instance = new MutableInstance(mainmodule.model.null_type)
+ if mainmodule.model.get_mclasses_by_name("Bool") != null then
+ self.true_instance = new PrimitiveInstance[Bool](mainmodule.bool_type, true)
+ init_instance_primitive(self.true_instance)
+ self.false_instance = new PrimitiveInstance[Bool](mainmodule.bool_type, false)
+ init_instance_primitive(self.false_instance)
+ end
+ self.null_instance = new PrimitiveInstance[nullable Object](mainmodule.model.null_type, null)
end
# Starts the interpreter on the main module of a program
# If `n` cannot be evaluated, then aborts.
fun stmt(n: nullable AExpr)
do
- if n != null then
- var frame = self.frame
- var old = frame.current_node
- frame.current_node = n
- #n.debug("Execute stmt")
- n.stmt(self)
- frame.current_node = old
+ if n == null then return
+
+ if n.comprehension != null then
+ var comprehension = frame.comprehension.as(not null)
+ var i = expr(n)
+ if i != null then comprehension.add(i)
+ return
end
+
+ var frame = self.frame
+ var old = frame.current_node
+ frame.current_node = n
+ n.stmt(self)
+ frame.current_node = old
end
# Map used to store values of nodes that must be evaluated once in the system (`AOnceExpr`)
assert args.length == mpropdef.msignature.arity + 1 else debug("Invalid arity for {mpropdef}. {args.length} arguments given.")
# Look for the AST node that implements the property
- var mproperty = mpropdef.mproperty
var val = mpropdef.constant_value
- if self.modelbuilder.mpropdef2npropdef.has_key(mpropdef) then
- var npropdef = self.modelbuilder.mpropdef2npropdef[mpropdef]
- self.parameter_check(npropdef, mpropdef, args)
- return npropdef.call(self, mpropdef, args)
- else if mproperty.is_root_init then
- var nclassdef = self.modelbuilder.mclassdef2nclassdef[mpropdef.mclassdef]
- self.parameter_check(nclassdef, mpropdef, args)
- return nclassdef.call(self, mpropdef, args)
+
+ var node = modelbuilder.mpropdef2node(mpropdef)
+ if node isa APropdef then
+ self.parameter_check(node, mpropdef, args)
+ return node.call(self, mpropdef, args)
+ else if node isa AClassdef then
+ self.parameter_check(node, mpropdef, args)
+ return node.call(self, mpropdef, args)
+ else if node != null then
+ fatal("Fatal Error: method {mpropdef} associated to unexpected AST node {node.location}")
+ abort
else if val != null then
return value_instance(val)
else
end
end
- # Generate type checks in the C code to check covariant parameters
+ # Execute type checks of covariant parameters
fun parameter_check(node: ANode, mpropdef: MMethodDef, args: Array[Instance])
do
var msignature = mpropdef.msignature
fun send_commons(mproperty: MMethod, args: Array[Instance], mtype: MType): nullable Instance
do
if mtype isa MNullType then
- if mproperty.name == "==" then
+ if mproperty.name == "==" or mproperty.name == "is_same_instance" then
return self.bool_instance(args[0] == args[1])
else if mproperty.name == "!=" then
return self.bool_instance(args[0] != args[1])
self.send(p, args)
else if p isa MAttribute then
assert recv isa MutableInstance
- recv.attributes[p] = arguments[i]
+ write_attribute(p, recv, arguments[i])
i += 1
else abort
end
var cds = mtype.collect_mclassdefs(self.mainmodule).to_a
self.mainmodule.linearize_mclassdefs(cds)
for cd in cds do
- if not self.modelbuilder.mclassdef2nclassdef.has_key(cd) then continue
- var n = self.modelbuilder.mclassdef2nclassdef[cd]
- for npropdef in n.n_propdefs do
- if npropdef isa AAttrPropdef then
- res.add(npropdef)
- end
- end
+ res.add_all(modelbuilder.collect_attr_propdef(cd))
end
cache[mtype] = res
return mainmodule.get_primitive_class(name)
end
- # This function determine the correct type according the reciever of the current definition (self).
+ # This function determines the correct type according to the receiver of the current propdef (self).
fun unanchor_type(mtype: MType): MType
do
return mtype.anchor_to(self.mainmodule, current_receiver_class)
var arguments: Array[Instance]
# Mapping between a variable and the current value
private var map: Map[Variable, Instance] = new HashMap[Variable, Instance]
+ var comprehension: nullable Array[Instance] = null
end
redef class ANode
else if pname == "exit" then
exit(args[1].to_i)
abort
+ else if pname == "buffer_mode_full" then
+ return v.int_instance(sys.buffer_mode_full)
+ else if pname == "buffer_mode_line" then
+ return v.int_instance(sys.buffer_mode_line)
+ else if pname == "buffer_mode_none" then
+ return v.int_instance(sys.buffer_mode_none)
else if pname == "sys" then
return v.mainobj
else if cname == "Int" then
end
else if cname == "NativeFile" then
if pname == "native_stdout" then
- var instance = new PrimitiveInstance[OStream](mpropdef.mclassdef.mclass.mclass_type, sys.stdout)
+ var inst = new PrimitiveNativeFile.native_stdout
+ var instance = new PrimitiveInstance[PrimitiveNativeFile](mpropdef.mclassdef.mclass.mclass_type, inst)
v.init_instance_primitive(instance)
return instance
else if pname == "native_stdin" then
- var instance = new PrimitiveInstance[IStream](mpropdef.mclassdef.mclass.mclass_type, sys.stdin)
+ var inst = new PrimitiveNativeFile.native_stdin
+ var instance = new PrimitiveInstance[PrimitiveNativeFile](mpropdef.mclassdef.mclass.mclass_type, inst)
v.init_instance_primitive(instance)
return instance
else if pname == "native_stderr" then
- var instance = new PrimitiveInstance[OStream](mpropdef.mclassdef.mclass.mclass_type, sys.stderr)
+ var inst = new PrimitiveNativeFile.native_stderr
+ var instance = new PrimitiveInstance[PrimitiveNativeFile](mpropdef.mclassdef.mclass.mclass_type, inst)
v.init_instance_primitive(instance)
return instance
else if pname == "io_open_read" then
var a1 = args[1].val.as(Buffer)
- var instance = new PrimitiveInstance[IStream](mpropdef.mclassdef.mclass.mclass_type, new IFStream.open(a1.to_s))
+ var inst = new PrimitiveNativeFile.io_open_read(a1.to_s)
+ var instance = new PrimitiveInstance[PrimitiveNativeFile](mpropdef.mclassdef.mclass.mclass_type, inst)
v.init_instance_primitive(instance)
return instance
else if pname == "io_open_write" then
var a1 = args[1].val.as(Buffer)
- var instance = new PrimitiveInstance[OStream](mpropdef.mclassdef.mclass.mclass_type, new OFStream.open(a1.to_s))
+ var inst = new PrimitiveNativeFile.io_open_write(a1.to_s)
+ var instance = new PrimitiveInstance[PrimitiveNativeFile](mpropdef.mclassdef.mclass.mclass_type, inst)
v.init_instance_primitive(instance)
return instance
end
var recvval = args.first.val
if pname == "io_write" then
var a1 = args[1].val.as(Buffer)
- recvval.as(OStream).write(a1.substring(0, args[2].to_i).to_s)
- return args[2]
+ return v.int_instance(recvval.as(PrimitiveNativeFile).io_write(a1.to_cstring, args[2].to_i))
else if pname == "io_read" then
- var str = recvval.as(IStream).read(args[2].to_i)
var a1 = args[1].val.as(Buffer)
- new FlatBuffer.from(str).copy(0, str.length, a1.as(FlatBuffer), 0)
- return v.int_instance(str.length)
+ var ns = new NativeString(a1.length)
+ var len = recvval.as(PrimitiveNativeFile).io_read(ns, args[2].to_i)
+ a1.clear
+ a1.append(ns.to_s_with_length(len))
+ return v.int_instance(len)
+ else if pname == "flush" then
+ recvval.as(PrimitiveNativeFile).flush
+ return null
else if pname == "io_close" then
- recvval.as(IOS).close
- return v.int_instance(0)
- else if pname == "address_is_null" then
- return v.false_instance
+ return v.int_instance(recvval.as(PrimitiveNativeFile).io_close)
+ else if pname == "set_buffering_type" then
+ return v.int_instance(recvval.as(PrimitiveNativeFile).set_buffering_type(args[1].to_i, args[2].to_i))
end
else if pname == "calloc_array" then
var recvtype = args.first.mtype.as(MClassType)
else if pname == "errno" then
return v.int_instance(sys.errno)
else if pname == "address_is_null" then
+ var recv = args[0]
+ if recv isa PrimitiveInstance[PrimitiveNativeFile] then
+ return v.bool_instance(recv.val.address_is_null)
+ end
return v.false_instance
end
return v.error_instance
redef fun expr(v)
do
var val = new Array[Instance]
- for nexpr in self.n_exprs.n_exprs do
- var i = v.expr(nexpr)
- if i == null then return null
- val.add(i)
+ var old_comprehension = v.frame.comprehension
+ v.frame.comprehension = val
+ for nexpr in self.n_exprs do
+ if nexpr isa AForExpr then
+ v.stmt(nexpr)
+ else
+ var i = v.expr(nexpr)
+ if i == null then return null
+ val.add(i)
+ end
end
+ v.frame.comprehension = old_comprehension
var mtype = v.unanchor_type(self.mtype.as(not null)).as(MClassType)
var elttype = mtype.arguments.first
return v.array_instance(val, elttype)
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