def visit_ProcedureDecl(self, node):
proc_name = node.proc_name
proc_symbol = ProcedureSymbol(proc_name)
self.current_scope.insert(proc_symbol)
print('ENTER scope: %s' % proc_name)
# Scope for parameters and local variables
procedure_scope = ScopedSymbolTable(
scope_name=proc_name,
scope_level=self.current_scope.scope_level + 1,
enclosing_scope=self.current_scope)
self.current_scope = procedure_scope
# Insert parameters into the procedure scope
for param in node.params:
param_type = self.current_scope.lookup(param.type_node.value)
param_name = param.var_node.value
var_symbol = VarSymbol(param_name, param_type)
self.current_scope.insert(var_symbol)
proc_symbol.params.append(var_symbol)
self.visit(node.block_node)
print(procedure_scope)
self.current_scope = self.current_scope.enclosing_scope
print('LEAVE scope: %s' % proc_name)
def visit_ProcedureDecl(self, node):
proc_name = node.proc_name
proc_symbol = ProcedureSymbol(proc_name)
self.current_scope.insert(proc_symbol)
result_str = "procedure %s%s" % (proc_name,
self.current_scope.scope_level)
procedure_scope = ScopedSymbolTable(
scope_name=proc_name,
scope_level=self.current_scope.scope_level + 1,
enclosing_scope=self.current_scope)
self.current_scope = procedure_scope
if node.params:
result_str += "("
formal_params = []
for param in node.params:
param_type = self.current_scope.lookup(param.type_node.value)
param_name = param.var_node.value
var_symbol = VarSymbol(param_name, param_type)
self.current_scope.insert(var_symbol)
proc_symbol.params.append(var_symbol)
scope_level = str(self.current_scope.scope_level)
formal_params.append("%s : %s0" %
(param_name + scope_level, param_type.name))
result_str += "; ".join(formal_params)
if node.params:
result_str += ")"
result_str += ";"
result_str += "\n"
result_str += self.visit(node.block_node)
result_str += "; {END OF %s}" % proc_name
result_str = "\n".join(" " + line
for line in result_str.splitlines())
self.current_scope = self.current_scope.enclosing_scope
return result_str
def visit_ProcedureDecl(self, node):
proc_name = node.proc_name
proc_symbol = ProcedureSymbol(proc_name)
self.current_scope.insert(proc_symbol)
result_str = 'procedure %s%s' % (proc_name,
self.current_scope.scope_level)
# Scope for parameters and local variables
procedure_scope = ScopedSymbolTable(
scope_name=proc_name,
scope_level=self.current_scope.scope_level + 1,
enclosing_scope=self.current_scope)
self.current_scope = procedure_scope
if node.params:
result_str += '('
formal_params = []
# Insert parameters into the procedure scope
for param in node.params:
param_type = self.current_scope.lookup(param.type_node.value)
param_name = param.var_node.value
var_symbol = VarSymbol(param_name, param_type)
self.current_scope.insert(var_symbol)
proc_symbol.params.append(var_symbol)
scope_level = str(self.current_scope.scope_level)
formal_params.append('%s : %s' %
(param_name + scope_level, param_type.name))
result_str += '; '.join(formal_params)
if node.params:
result_str += ')'
result_str += ';'
result_str += '\n'
result_str += self.visit(node.block_node)
result_str += '; {END OF %s}' % proc_name
# indent procedure text
result_str = '\n'.join(' ' + line
for line in result_str.splitlines())
self.current_scope = self.current_scope.enclosing_scope
return result_str