import parsing
+DesugaredBuiltinExpression = collections.namedtuple(
+ 'DesugaredBuiltinExpression',
+ (
+ 'metadata',
+ 'symbol',
+ ),
+)
+
DesugaredFunctionCallExpression = collections.namedtuple(
'DesugaredFunctionCallExpression',
(
),
)
+_DesugaredLambdaExpression = collections.namedtuple(
+ 'DesugaredLambdaExpression',
+ (
+ 'name',
+ 'argument_name_list',
+ 'statement_list',
+ ),
+)
+
+class DesugaredLambdaExpression(_DesugaredLambdaExpression):
+ def __new__(cls, *args, **kwargs):
+ if 'name' not in kwargs:
+ kwargs['name'] = None
+
+ return super(DesugaredLambdaExpression, cls).__new__(cls, *args, **kwargs)
+
DesugaredListLiteralExpression = collections.namedtuple(
'DesugaredListLiteralExpression',
(
),
)
-DesugaredFunctionDefinitionStatement = collections.namedtuple(
- 'DesugaredFunctionDefinitionStatement',
- (
- 'name',
- 'argument_name_list',
- 'statement_list',
- ),
-)
-
DesugaredProgram = collections.namedtuple(
'DesugaredProgram',
(
return DesugaredFunctionCallExpression(
metadata=expression.metadata,
- function=DesugaredSymbolExpression(
+ function=DesugaredBuiltinExpression(
metadata=expression.metadata,
symbol=function,
),
integer=expression.integer,
)
+def desugar_lambda_expression(expression):
+ return DesugaredLambdaExpression(
+ argument_name_list=expression.argument_name_list,
+ statement_list=tuple(desugar_statement(s) for s in expression.statement_list),
+ )
+
def desugar_list_item_expression(expression):
return DesugaredFunctionCallExpression(
metadata=expression.metadata,
- function=DesugaredSymbolExpression(
+ function=DesugaredBuiltinExpression(
metadata=expression.metadata,
symbol='__get__',
),
def desugar_negation_expression(expression):
return DesugaredFunctionCallExpression(
metadata=expression.metadata,
- function=DesugaredSymbolExpression(
+ function=DesugaredBuiltinExpression(
metadata=expression.metadata,
symbol='__negate__',
),
parsing.FurIfExpression: desugar_if_expression,
parsing.FurInfixExpression: desugar_infix_expression,
parsing.FurIntegerLiteralExpression: desugar_integer_literal_expression,
+ parsing.FurLambdaExpression: desugar_lambda_expression,
parsing.FurListItemExpression: desugar_list_item_expression,
parsing.FurListLiteralExpression: desugar_list_literal_expression,
parsing.FurNegationExpression: desugar_negation_expression,
)
def desugar_function_definition_statement(statement):
- return DesugaredFunctionDefinitionStatement(
- name=statement.name,
- argument_name_list=statement.argument_name_list,
- statement_list=tuple(desugar_statement(s) for s in statement.statement_list),
+ return DesugaredAssignmentStatement(
+ target=statement.name,
+ expression=DesugaredLambdaExpression(
+ name=statement.name,
+ argument_name_list=statement.argument_name_list,
+ statement_list=tuple(desugar_statement(s) for s in statement.statement_list),
+ ),
)
def desugar_statement(statement):