5 ENV = jinja2.Environment(
6 autoescape=jinja2.select_autoescape([]),
7 loader=jinja2.FileSystemLoader('templates'),
11 def generate_integer_literal(c_integer_literal):
12 return 'integerLiteral({})'.format(c_integer_literal.value)
14 def generate_string_literal(c_string_literal):
15 return 'stringLiteral(STRING_LITERAL_LIST[{}])'.format(c_string_literal.index)
17 CONSTANT_EXPRESSION_MAPPING = {
22 def generate_constant_expression(c_constant_expression):
23 return CONSTANT_EXPRESSION_MAPPING[c_constant_expression.value]
25 def generate_symbol_expression(c_symbol_expression):
26 return 'Environment_get(environment, SYMBOL_LIST[{}] /* symbol: {} */)'.format(
27 c_symbol_expression.symbol_list_index,
28 c_symbol_expression.symbol,
31 def generate_expression(c_argument):
32 if isinstance(c_argument, transformation.CNegationExpression):
33 return generate_negation_expression(c_argument)
35 if isinstance(c_argument, transformation.CFunctionCallExpression):
36 return generate_function_call(c_argument)
38 LITERAL_TYPE_MAPPING = {
39 transformation.CIntegerLiteral: generate_integer_literal,
40 transformation.CStringLiteral: generate_string_literal,
41 transformation.CConstantExpression: generate_constant_expression,
42 transformation.CSymbolExpression: generate_symbol_expression,
45 if type(c_argument) in LITERAL_TYPE_MAPPING:
46 return LITERAL_TYPE_MAPPING[type(c_argument)](c_argument)
48 if isinstance(c_argument, transformation.CFunctionCallForFurInfixOperator):
49 return 'builtin${}({}, {})'.format(
51 generate_expression(c_argument.left),
52 generate_expression(c_argument.right),
55 raise Exception('Could not handle expresssion "{}"'.format(c_argument))
57 def generate_negation_expression(c_negation_expression):
58 return 'builtin$negate({})'.format(
59 generate_expression(c_negation_expression.value)
62 def generate_function_call(c_function_call):
63 return '{}({})'.format(
65 ', '.join(generate_expression(argument) for argument in c_function_call.arguments),
68 def generate_expression_statement(c_function_call_statement):
69 # TODO Do we need to garbage collect the results of arbitrary statements?
70 return '{};'.format(generate_expression(c_function_call_statement))
72 def generate_assignment_statement(c_assignment_statement):
73 return 'Environment_set(environment, SYMBOL_LIST[{}] /* symbol: {} */, {});'.format(
74 c_assignment_statement.target_symbol_list_index,
75 c_assignment_statement.target,
76 generate_expression(c_assignment_statement.expression),
79 def generate_statement(statement):
80 if isinstance(statement, transformation.CAssignmentStatement):
81 return generate_assignment_statement(statement)
83 return generate_expression_statement(statement)
85 def generate(c_program):
86 template = ENV.get_template('program.c')
87 return template.render(
88 builtins=list(sorted(c_program.builtin_set)),
89 statements=[generate_statement(statement) for statement in c_program.statements],
90 standard_libraries=list(sorted(c_program.standard_libraries)),
91 string_literal_list=c_program.string_literal_list,
92 symbol_list=c_program.symbol_list,
95 if __name__ == '__main__':