def p_opt_program(self, p):
"""opt_program :
| program"""
if len(p) == 1:
p[0] = [[], []]
else:
p[0] = [[
ast.Block(program=p[1][0],
namespace='__scriptname__',
debug_info=self.debug_info(p, 1))
], p[1][1]]
def parse_block(self) -> ast.Block:
"""
Parses a block.
"""
line = self.expect('{').line
block = []
while self.tokens.peek != '}':
if self.tokens.peek == TokenType.TYPE:
# declaration
var_type, name, line = self.parse_declaration()
if self.tokens.peek == '=':
self.tokens.next()
expr = self.parse_expression()
self.expect(';')
block.append(ast.Declaration(line, var_type, name, expr))
else:
self.expect(';')
block.append(ast.Declaration(line, var_type, name))
else:
# statement
block.append(self.parse_statement())
self.tokens.next()
return ast.Block(line, block)
def p_opt_program(self, p):
"""opt_program : program
| empty"""
p[0] = [] if p[1] is None else [ast.Block(program=p[1], namespace='__scriptname__', debug_info=self.debug_info(p, 1))]