def parse(self, precedence=0, required=True):
self.reader.skip_whitespace()
left_start = self.reader.offset
left = self.parse_left(required)
if left == None:
return None
self.add_node(left, left_start)
while True:
if self.hooks != None:
parsed = self.hooks.infix_prehook(left)
if parsed != None:
left = parsed
self.add_node(left, left_start)
continue
op = self.parse_operator()
if op == None or op.precedence <= precedence:
break
self.reader.expect_token(op.text)
op_text = self.config.aliases.get(
op.text) if op.text in self.config.aliases else op.text
if op.is_binary:
right = self.parse(op.precedence -
1 if op.is_right_assoc else op.precedence)
left = exprs.BinaryExpression(left, op_text, right)
elif op.is_postfix:
left = exprs.UnaryExpression(exprs.UNARY_TYPE.POSTFIX, op_text,
left)
elif op.text == "?":
when_true = self.parse()
self.reader.expect_token(":")
when_false = self.parse(op.precedence - 1)
left = exprs.ConditionalExpression(left, when_true, when_false)
elif op.text == "(":
args = self.parse_call_arguments()
left = exprs.UnresolvedCallExpression(left, [], args)
elif op.text == "[":
element_expr = self.parse()
self.reader.expect_token("]")
left = exprs.ElementAccessExpression(left, element_expr)
elif op.text in self.config.property_access_ops:
prop = self.reader.expect_identifier(
"expected identifier as property name")
left = exprs.PropertyAccessExpression(left, prop)
else:
self.reader.fail(
f'''parsing \'{op.text}\' is not yet implemented''')
self.add_node(left, left_start)
if isinstance(left, exprs.ParenthesizedExpression) and isinstance(
left.expression, exprs.Identifier):
expr = self.parse(0, False)
if expr != None:
return exprs.CastExpression(
astTypes.UnresolvedType(left.expression.text, []), expr)
return left
def transform(self, expr):
unary_expr = expr
if unary_expr.operator == "!":
self.main.process_expression(expr)
type = unary_expr.operand.actual_type
lit_types = self.main.current_file.literal_types
if isinstance(type, astTypes.ClassType) and type.decl != lit_types.boolean.decl and type.decl != lit_types.numeric.decl:
return exprs.BinaryExpression(unary_expr.operand, "==", exprs.NullLiteral())
return expr
def class_(self, cls_):
self.current_class = cls_
res_list = []
static_constructor_stmts = []
complex_field_inits = []
field_reprs = []
prop_reprs = []
for field in cls_.fields:
is_initializer_complex = field.initializer != None and not (
isinstance(field.initializer, exprs.StringLiteral)) and not (
isinstance(field.initializer,
exprs.BooleanLiteral)) and not (isinstance(
field.initializer, exprs.NumericLiteral))
prefix = f'''{self.vis(field.visibility)} {self.pre_if("static ", field.is_static)}'''
if len(field.interface_declarations) > 0:
var_type = self.var_type(field, field)
name = self.name_(field.name)
pname = self.uc_first(field.name)
set_to_false = astTypes.TypeHelper.equals(
field.type,
self.current_class.parent_file.literal_types.boolean)
prop_reprs.append(
f'''{var_type} {name}{(" = false" if set_to_false else f' = {self.expr(field.initializer)}' if field.initializer != None else "")};\n'''
+
f'''{prefix}{var_type} get{pname}() {{ return this.{name}; }}\n'''
+
f'''{prefix}void set{pname}({var_type} value) {{ this.{name} = value; }}'''
)
elif is_initializer_complex:
if field.is_static:
static_constructor_stmts.append(
stats.ExpressionStatement(
exprs.BinaryExpression(
refs.StaticFieldReference(field), "=",
field.initializer)))
else:
complex_field_inits.append(
stats.ExpressionStatement(
exprs.BinaryExpression(
refs.InstanceFieldReference(
refs.ThisReference(cls_), field), "=",
field.initializer)))
field_reprs.append(
f'''{prefix}{self.var_wo_init(field, field)};''')
else:
field_reprs.append(f'''{prefix}{self.var(field, field)};''')
res_list.append("\n".join(field_reprs))
res_list.append("\n\n".join(prop_reprs))
for prop in cls_.properties:
prefix = f'''{self.vis(prop.visibility)} {self.pre_if("static ", prop.is_static)}'''
if prop.getter != None:
res_list.append(
f'''{prefix}{self.type(prop.type)} get{self.uc_first(prop.name)}(){self.block(prop.getter, False)}'''
)
if prop.setter != None:
res_list.append(
f'''{prefix}void set{self.uc_first(prop.name)}({self.type(prop.type)} value){self.block(prop.setter, False)}'''
)
if len(static_constructor_stmts) > 0:
res_list.append(
f'''static {{\n{self.pad(self.stmts(static_constructor_stmts))}\n}}'''
)
if cls_.constructor_ != None:
constr_field_inits = []
for field in list(
filter(lambda x: x.constructor_param != None,
cls_.fields)):
field_ref = refs.InstanceFieldReference(
refs.ThisReference(cls_), field)
mp_ref = refs.MethodParameterReference(field.constructor_param)
# TODO: decide what to do with "after-TypeEngine" transformations
mp_ref.set_actual_type(field.type, False, False)
constr_field_inits.append(
stats.ExpressionStatement(
exprs.BinaryExpression(field_ref, "=", mp_ref)))
super_call = f'''super({", ".join(list(map(lambda x: self.expr(x), cls_.constructor_.super_call_args)))});\n''' if cls_.constructor_.super_call_args != None else ""
# @java var stmts = Stream.of(constrFieldInits, complexFieldInits, cls.constructor_.getBody().statements).flatMap(Collection::stream).toArray(Statement[]::new);
# @java-import java.util.Collection
# @java-import java.util.stream.Stream
stmts = constr_field_inits + complex_field_inits + cls_.constructor_.body.statements
# TODO: super calls
res_list.append(
self.method_gen(
"public " +
self.pre_if("/* throws */ ", cls_.constructor_.throws) +
self.name_(cls_.name), cls_.constructor_.parameters,
f'''\n{{\n{self.pad(super_call + self.stmts(stmts))}\n}}'''
))
elif len(complex_field_inits) > 0:
res_list.append(
f'''public {self.name_(cls_.name)}()\n{{\n{self.pad(self.stmts(complex_field_inits))}\n}}'''
)
methods = []
for method in cls_.methods:
if method.body == None:
continue
# declaration only
methods.append(self.method(method, True))
res_list.append("\n\n".join(methods))
return self.pad("\n\n".join(list(filter(lambda x: x != "", res_list))))
def class_like(self, cls_):
self.current_class = cls_
res_list = []
static_constructor_stmts = []
complex_field_inits = []
if isinstance(cls_, types.Class):
field_reprs = []
for field in cls_.fields:
is_initializer_complex = field.initializer != None and not (
isinstance(field.initializer, exprs.StringLiteral)
) and not (isinstance(
field.initializer, exprs.BooleanLiteral)) and not (
isinstance(field.initializer, exprs.NumericLiteral))
prefix = f'''{self.vis(field.visibility)} {self.pre_if("static ", field.is_static)}'''
if len(field.interface_declarations) > 0:
init = f''' = {self.expr(field.initializer)};''' if field.initializer != None else ""
field_reprs.append(
f'''{prefix}{self.var_wo_init(field, field)} {{ get; set; }}{init}'''
)
elif is_initializer_complex:
if field.is_static:
static_constructor_stmts.append(
stats.ExpressionStatement(
exprs.BinaryExpression(
refs.StaticFieldReference(field), "=",
field.initializer)))
else:
complex_field_inits.append(
stats.ExpressionStatement(
exprs.BinaryExpression(
refs.InstanceFieldReference(
refs.ThisReference(cls_), field), "=",
field.initializer)))
field_reprs.append(
f'''{prefix}{self.var_wo_init(field, field)};''')
else:
field_reprs.append(
f'''{prefix}{self.var(field, field)};''')
res_list.append("\n".join(field_reprs))
res_list.append("\n".join(
list(
map(
lambda prop:
f'''{self.vis(prop.visibility)} {self.pre_if("static ", prop.is_static)}'''
+ self.var_wo_init(prop, prop) +
(f''' {{\n get {{\n{self.pad(self.block(prop.getter))}\n }}\n}}'''
if prop.getter != None else "") +
(f''' {{\n set {{\n{self.pad(self.block(prop.setter))}\n }}\n}}'''
if prop.setter != None else ""), cls_.properties))))
if len(static_constructor_stmts) > 0:
res_list.append(
f'''static {self.name_(cls_.name)}()\n{{\n{self.pad(self.stmts(static_constructor_stmts))}\n}}'''
)
if cls_.constructor_ != None:
constr_field_inits = []
for field in list(
filter(lambda x: x.constructor_param != None,
cls_.fields)):
field_ref = refs.InstanceFieldReference(
refs.ThisReference(cls_), field)
mp_ref = refs.MethodParameterReference(
field.constructor_param)
# TODO: decide what to do with "after-TypeEngine" transformations
mp_ref.set_actual_type(field.type, False, False)
constr_field_inits.append(
stats.ExpressionStatement(
exprs.BinaryExpression(field_ref, "=", mp_ref)))
# @java var stmts = Stream.concat(Stream.concat(constrFieldInits.stream(), complexFieldInits.stream()), ((Class)cls).constructor_.getBody().statements.stream()).toArray(Statement[]::new);
# @java-import java.util.stream.Stream
stmts = constr_field_inits + complex_field_inits + cls_.constructor_.body.statements
res_list.append(
"public " +
self.pre_if("/* throws */ ", cls_.constructor_.throws) +
self.name_(cls_.name) +
f'''({", ".join(list(map(lambda p: self.var(p, p), cls_.constructor_.parameters)))})'''
+
(f''': base({", ".join(list(map(lambda x: self.expr(x), cls_.constructor_.super_call_args)))})'''
if cls_.constructor_.super_call_args != None else "") +
f'''\n{{\n{self.pad(self.stmts(stmts))}\n}}''')
elif len(complex_field_inits) > 0:
res_list.append(
f'''public {self.name_(cls_.name)}()\n{{\n{self.pad(self.stmts(complex_field_inits))}\n}}'''
)
elif isinstance(cls_, types.Interface):
res_list.append("\n".join(
list(
map(
lambda field:
f'''{self.var_wo_init(field, field)} {{ get; set; }}''',
cls_.fields))))
methods = []
for method in cls_.methods:
if isinstance(cls_, types.Class) and method.body == None:
continue
# declaration only
methods.append(
("" if isinstance(method.parent_interface, types.Interface
) else self.vis(method.visibility) + " ") +
self.pre_if("static ", method.is_static) + self.pre_if(
"virtual ", method.overrides == None
and len(method.overridden_by) > 0) +
self.pre_if("override ", method.overrides != None) +
self.pre_if("async ", method.async_) +
self.pre_if("/* throws */ ", method.throws) +
f'''{self.type(method.returns, False)} ''' +
self.name_(method.name) +
self.type_args(method.type_arguments) +
f'''({", ".join(list(map(lambda p: self.var(p, None), method.parameters)))})'''
+
(f'''\n{{\n{self.pad(self.stmts(method.body.statements))}\n}}'''
if method.body != None else ";"))
res_list.append("\n\n".join(methods))
return self.pad("\n\n".join(list(filter(lambda x: x != "", res_list))))
def class_like(self, cls_):
self.current_class = cls_
res_list = []
static_constructor_stmts = []
complex_field_inits = []
if isinstance(cls_, types.Class):
field_reprs = []
for field in cls_.fields:
is_initializer_complex = field.initializer != None and not (isinstance(field.initializer, exprs.StringLiteral)) and not (isinstance(field.initializer, exprs.BooleanLiteral)) and not (isinstance(field.initializer, exprs.NumericLiteral))
prefix = f'''{self.vis(field.visibility, True)}{self.pre_if("static ", field.is_static)}'''
if is_initializer_complex:
if field.is_static:
static_constructor_stmts.append(stats.ExpressionStatement(exprs.BinaryExpression(refs.StaticFieldReference(field), "=", field.initializer)))
else:
complex_field_inits.append(stats.ExpressionStatement(exprs.BinaryExpression(refs.InstanceFieldReference(refs.ThisReference(cls_), field), "=", field.initializer)))
field_reprs.append(f'''{prefix}{self.var_wo_init(field, field)};''')
else:
field_reprs.append(f'''{prefix}{self.var(field, field)};''')
res_list.append("\n".join(field_reprs))
for prop in cls_.properties:
if prop.getter != None:
res_list.append(self.vis(prop.visibility, False) + self.pre_if("static ", prop.is_static) + f'''function get_{self.name_(prop.name)}(){self.block(prop.getter, False)}''')
if prop.setter != None:
res_list.append(self.vis(prop.visibility, False) + self.pre_if("static ", prop.is_static) + f'''function set_{self.name_(prop.name)}($value){self.block(prop.setter, False)}''')
if len(static_constructor_stmts) > 0:
res_list.append(f'''static function StaticInit()\n{{\n{self.pad(self.stmts(static_constructor_stmts))}\n}}''')
if cls_.constructor_ != None:
constr_field_inits = []
for field in list(filter(lambda x: x.constructor_param != None, cls_.fields)):
field_ref = refs.InstanceFieldReference(refs.ThisReference(cls_), field)
mp_ref = refs.MethodParameterReference(field.constructor_param)
# TODO: decide what to do with "after-TypeEngine" transformations
mp_ref.set_actual_type(field.type, False, False)
constr_field_inits.append(stats.ExpressionStatement(exprs.BinaryExpression(field_ref, "=", mp_ref)))
parent_call = f'''parent::__construct({", ".join(list(map(lambda x: self.expr(x), cls_.constructor_.super_call_args)))});\n''' if cls_.constructor_.super_call_args != None else ""
# @java var stmts = Stream.of(constrFieldInits, complexFieldInits, ((Class)cls).constructor_.getBody().statements).flatMap(Collection::stream).toArray(Statement[]::new);
# @java-import java.util.Collection
# @java-import java.util.stream.Stream
stmts = constr_field_inits + complex_field_inits + cls_.constructor_.body.statements
res_list.append(self.pre_if("/* throws */ ", cls_.constructor_.throws) + "function __construct" + f'''({", ".join(list(map(lambda p: self.var(p, p), cls_.constructor_.parameters)))})''' + f''' {{\n{self.pad(parent_call + self.stmts(stmts))}\n}}''')
elif len(complex_field_inits) > 0:
res_list.append(f'''function __construct()\n{{\n{self.pad(self.stmts(complex_field_inits))}\n}}''')
elif isinstance(cls_, types.Interface):
pass
methods = []
for method in cls_.methods:
if isinstance(cls_, types.Class) and method.body == None:
continue
# declaration only
methods.append(("" if isinstance(method.parent_interface, types.Interface) else self.vis(method.visibility, False)) + self.pre_if("static ", method.is_static) + self.pre_if("/* throws */ ", method.throws) + f'''function ''' + self.name_(method.name) + self.type_args(method.type_arguments) + f'''({", ".join(list(map(lambda p: self.var(p, None), method.parameters)))})''' + (f''' {{\n{self.pad(self.stmts(method.body.statements))}\n}}''' if method.body != None else ";"))
res_list.append("\n\n".join(methods))
res_list_joined = self.pad("\n\n".join(list(filter(lambda x: x != "", res_list))))
return f''' {{\n{res_list_joined}\n}}''' + (f'''\n{self.name_(cls_.name)}::StaticInit();''' if len(static_constructor_stmts) > 0 else "")
