+++ /dev/null
-import jinja2
-
-import transformation
-
-ENV = jinja2.Environment(
- autoescape=jinja2.select_autoescape([]),
- loader=jinja2.FileSystemLoader('templates'),
- trim_blocks=True,
-)
-
-def generate_integer_literal(c_integer_literal):
- return 'integerLiteral({})'.format(c_integer_literal.value)
-
-def generate_string_literal(c_string_literal):
- return 'stringLiteral(STRING_LITERAL_LIST[{}] /* string: {} */)'.format(
- c_string_literal.index,
- repr(c_string_literal.value),
- )
-
-def generate_symbol_expression(symbol_expression):
- return 'Environment_get(environment, SYMBOL_LIST[{}] /* symbol: {} */)'.format(
- symbol_expression.symbol_list_index,
- symbol_expression.symbol,
- )
-
-def generate_variable_expression(expression):
- return expression.variable
-
-def generate_structure_literal_expression(expression):
- return 'Structure_construct({}, {}, {})'.format(
- expression.field_count,
- expression.symbol_list_variable,
- expression.value_list_variable,
- )
-
-def generate_lambda_expression(expression):
- return '(Object){{ CLOSURE, (Instance)(Closure){{ environment, user${}${}$implementation }} }}'.format(
- expression.name,
- expression.index,
- )
-
-def generate_list_construct_expression(expression):
- return 'List_construct({})'.format(expression.allocate)
-
-def generate_expression(expression):
- return {
- transformation.CFunctionCallExpression: generate_function_call,
- transformation.CIfElseExpression: generate_if_else_expression,
- transformation.CIntegerLiteral: generate_integer_literal,
- transformation.CLambdaExpression: generate_lambda_expression,
- transformation.CListConstructExpression: generate_list_construct_expression,
- transformation.CStringLiteral: generate_string_literal,
- transformation.CStructureLiteralExpression: generate_structure_literal_expression,
- transformation.CSymbolExpression: generate_symbol_expression,
- transformation.CVariableExpression: generate_variable_expression,
- }[type(expression)](expression)
-
-def generate_function_call(function_call):
- # This gets called twice, so we want to be sure it is efficient and without side effects
- assert isinstance(function_call.function_expression, transformation.CSymbolExpression)
-
- # TODO Check the type of the things being called
- function_expression = generate_expression(function_call.function_expression)
- return '{}.instance.closure.call(environmentPool, {}.instance.closure.closed, {}, stack, {}, jump)'.format(
- function_expression,
- function_expression,
- function_call.argument_count,
- function_call.metadata.line,
- )
-
-def generate_expression_statement(statement):
- return 'Object_deinitialize(&({}));'.format(generate_expression(statement.expression))
-
-def generate_symbol_assignment_statement(statement):
- return 'Environment_set(environment, SYMBOL_LIST[{}] /* symbol: {} */, {});'.format(
- statement.target_symbol_list_index,
- statement.target,
- generate_expression(statement.expression),
- )
-
-def generate_array_variable_initialization_statement(statement):
- return 'Object {}[] = {{ {} }};'.format(
- statement.variable,
- ', '.join(generate_expression(i) for i in statement.items),
- )
-
-def generate_symbol_array_variable_initialization_statement(statement):
- return 'const char* {}[] = {{ {} }};'.format(
- statement.variable,
- ', '.join('SYMBOL_LIST[{}] /* symbol: "{}" */'.format(
- statement.symbol_list_indices[i],
- statement.symbol_list[i],
- ) for i in range(len(statement.symbol_list))),
- )
-
-def generate_variable_initialization_statement(statement):
- return 'Object {} = {};'.format(
- statement.variable,
- generate_expression(statement.expression),
- )
-
-def indent(s):
- return '\n'.join(' ' * 2 + l for l in s.split('\n'))
-
-def generate_if_else_expression(statement):
- # TODO Check that the argument is boolean
- condition_expression = '{}.instance.boolean'.format(
- generate_expression(statement.condition_expression),
- )
-
- if len(statement.if_statement_list) == 0:
- condition_expression = '!({})'.format(condition_expression)
- if_statement_list = statement.else_statement_list
- else_statement_list = ()
- else:
- if_statement_list = statement.if_statement_list
- else_statement_list = statement.else_statement_list
-
- generated_if_clause = 'if({})'.format(condition_expression)
-
- if len(if_statement_list) == 0:
- generated_if_statement_list = ';'
- else:
- generated_if_statement_list = indent('\n{{\n{}\n}}'.format(
- indent('\n'.join(generate_statement(s) for s in if_statement_list)),
- ))
-
- if len(else_statement_list) == 0:
- generated_else_statement_list = ''
- else:
- generated_else_statement_list = indent('\nelse\n{{\n{}\n}}'.format(
- indent('\n'.join(generate_statement(s) for s in else_statement_list)),
- ))
-
- return generated_if_clause + generated_if_statement_list + generated_else_statement_list
-
-def generate_list_append_statement(statement):
- return 'List_append(&{}, {});'.format(
- generate_expression(statement.list_expression),
- generate_expression(statement.item_expression),
- )
-
-def generate_push_statement(statement):
- return 'Stack_push(stack, {});'.format(generate_expression(statement.expression))
-
-def generate_statement(statement):
- return {
- transformation.CArrayVariableInitializationStatement: generate_array_variable_initialization_statement,
- transformation.CExpressionStatement: generate_expression_statement,
- transformation.CListAppendStatement: generate_list_append_statement,
- transformation.CPushStatement: generate_push_statement,
- transformation.CSymbolAssignmentStatement: generate_symbol_assignment_statement,
- transformation.CSymbolArrayVariableInitializationStatement: generate_symbol_array_variable_initialization_statement,
- transformation.CVariableInitializationStatement: generate_variable_initialization_statement,
- }[type(statement)](statement)
-
-def generate_function_definition(definition):
- template = ENV.get_template('function_definition.c')
- return template.render(
- name=definition.name,
- index=definition.index,
- argument_name_list=definition.argument_name_list,
- statement_list=list(generate_statement(s) for s in definition.statement_list),
- )
- return definition
-
-C_ESCAPES = {
- '"': r'\"',
-}
-
-def escape_character(ch):
- return C_ESCAPES.get(ch, ch)
-
-def escape_string_literal(string_literal):
- return ''.join(escape_character(ch) for ch in string_literal)
-
-def generate(program):
- template = ENV.get_template('program.c')
- return template.render(
- builtins=tuple(sorted(program.builtin_set)),
- function_definition_list=list(generate_function_definition(fd) for fd in program.function_definition_list),
- infix_declarations=program.operator_declarations,
- statements=list(generate_statement(s) for s in program.statements),
- standard_libraries=list(sorted(program.standard_libraries)),
- string_literal_list=list(escape_string_literal(s) for s in program.string_literal_list),
- symbol_list=program.symbol_list,
- )
-
-if __name__ == '__main__':
- import unittest
-
- unittest.main()
projects / fur / blobdiff