def filter_ast(ast):
# Add unmatching PositionalFormalParameter
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
func_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(func_stmt, 'EagerFunctionDeclaration')
func_contents = utils.get_field(func_stmt, 'contents')
utils.assert_interface(func_contents, 'FunctionOrMethodContents')
params = utils.get_field(func_contents, 'params')
utils.assert_interface(params, 'FormalParameters')
params_items = utils.get_field(params, 'items')
param = utils.get_element(params_items, 0)
utils.assert_interface(param, 'BindingIdentifier')
copied_param = utils.copy_tagged_tuple(param)
name = utils.get_field(copied_param, "name")
utils.set_identifier_name(name, "b")
utils.append_element(params_items, copied_param)
return ast
def filter_ast(ast):
# Put WTF-8 string into field name.
# In multipart format, field name is not encoded into the file,
# so this has no effect.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
expr_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(expr_stmt, 'ExpressionStatement')
field = utils.get_field(expr_stmt, 'expression')
utils.append_field(expr_stmt, u'\uD83E_\uDD9D', field)
utils.remove_field(expr_stmt, 'expression')
return ast
def filter_ast(ast):
# Put WTF-8 string into scope name.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
scope = utils.get_field(ast, 'scope')
utils.assert_interface(scope, 'AssertedScriptGlobalScope')
names = utils.get_field(scope, 'declaredNames')
decl_name = utils.get_element(names, 0)
utils.assert_interface(decl_name, 'AssertedDeclaredName')
name = utils.get_field(decl_name, 'name')
utils.set_identifier_name(name, u'\uD83E_\uDD9D')
return ast
def filter_ast(ast):
# Put WTF-8 string into identifier name.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
expr_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(expr_stmt, 'ExpressionStatement')
assign_expr = utils.get_field(expr_stmt, 'expression')
utils.assert_interface(assign_expr, 'AssignmentExpression')
binding = utils.get_field(assign_expr, 'binding')
utils.assert_interface(binding, 'AssignmentTargetIdentifier')
name = utils.get_field(binding, 'name')
utils.set_identifier_name(name, u'\uD83E_\uDD9D')
return ast
def filter_ast(ast):
# Move a continue statement out of a while loop.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
while_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(while_stmt, 'WhileStatement')
while_body = utils.get_field(while_stmt, 'body')
utils.assert_interface(while_body, 'Block')
while_body_stmts = utils.get_field(while_body, 'statements')
continue_stmt = utils.get_element(while_body_stmts, 0)
utils.assert_interface(continue_stmt, 'ContinueStatement')
utils.remove_element(while_body_stmts, 0)
utils.append_element(global_stmts, continue_stmt)
return ast
def filter_ast(ast):
# Move function inside then-block, without fixing scope.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
fun_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(fun_stmt, 'EagerFunctionDeclaration')
if_stmt = utils.get_element(global_stmts, 1)
utils.assert_interface(if_stmt, 'IfStatement')
block_stmt = utils.get_field(if_stmt, 'consequent')
utils.assert_interface(block_stmt, 'Block')
block_stmts = utils.get_field(block_stmt, 'statements')
utils.append_element(block_stmts, utils.copy_tagged_tuple(fun_stmt))
return ast
def filter_ast(ast):
# Duplicate parameter up to 65536 entries.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
func_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(func_stmt, 'EagerFunctionDeclaration')
func_contents = utils.get_field(func_stmt, 'contents')
utils.assert_interface(func_contents, 'FunctionOrMethodContents')
param_scope = utils.get_field(func_contents, 'parameterScope')
utils.assert_interface(param_scope, 'AssertedParameterScope')
param_names = utils.get_field(param_scope, 'paramNames')
param_name = utils.get_element(param_names, 0)
utils.assert_interface(param_name, 'AssertedPositionalParameterName')
for i in range(1, 65536 + 1):
copied_param_name = utils.copy_tagged_tuple(param_name)
index = utils.get_field(copied_param_name, "index")
name = utils.get_field(copied_param_name, "name")
utils.set_unsigned_long(index, i)
utils.set_identifier_name(name, "a{}".format(i))
utils.append_element(param_names, copied_param_name)
return ast
def filter_ast(ast):
# Put WTF-8 string into interface name.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
expr_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(expr_stmt, 'ExpressionStatement')
utils.set_interface_name(expr_stmt, u'\uD83E_\uDD9D')
return ast
def filter_ast(ast):
# Move a break statement out of a while loop.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
labelled_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(labelled_stmt, 'LabelledStatement')
while_stmt = utils.get_field(labelled_stmt, 'body')
utils.assert_interface(while_stmt, 'WhileStatement')
while_body = utils.get_field(while_stmt, 'body')
utils.assert_interface(while_body, 'Block')
while_body_stmts = utils.get_field(while_body, 'statements')
break_stmt = utils.get_element(while_body_stmts, 0)
utils.assert_interface(break_stmt, 'BreakStatement')
utils.remove_element(while_body_stmts, 0)
utils.append_element(global_stmts, break_stmt)
return ast
def filter_ast(ast):
# Set different parameter name than one in scope.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
func_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(func_stmt, 'EagerFunctionDeclaration')
func_contents = utils.get_field(func_stmt, 'contents')
utils.assert_interface(func_contents, 'FunctionOrMethodContents')
params = utils.get_field(func_contents, 'params')
utils.assert_interface(params, 'FormalParameters')
params_items = utils.get_field(params, 'items')
param = utils.get_element(params_items, 0)
utils.assert_interface(param, 'BindingIdentifier')
name = utils.get_field(param, "name")
utils.set_identifier_name(name, "b")
return ast
def filter_ast(ast):
# 2 AssertedPositionalParameterName with same index.
import filter_utils as utils
utils.assert_interface(ast, 'Script')
global_stmts = utils.get_field(ast, 'statements')
func_stmt = utils.get_element(global_stmts, 0)
utils.assert_interface(func_stmt, 'EagerFunctionDeclaration')
func_contents = utils.get_field(func_stmt, 'contents')
utils.assert_interface(func_contents, 'FunctionOrMethodContents')
param_scope = utils.get_field(func_contents, 'parameterScope')
utils.assert_interface(param_scope, 'AssertedParameterScope')
param_names = utils.get_field(param_scope, 'paramNames')
param_name = utils.get_element(param_names, 1)
utils.assert_interface(param_name, 'AssertedPositionalParameterName')
index = utils.get_field(param_name, "index")
utils.set_unsigned_long(index, 0)
return ast
