Syntax tree

Source:

class TestSwiftFile {
    static let file: String = __FILE__
}

class TestSwiftFileWithFunction {
    func doWork(a: Int, andB b: String) -> [String] {
        return []
    }
}

Output:

statements {
    statement {
        declaration {
            class_declaration {
                class "class",
                class_name {
                    identifier {
                        Identifier "TestSwiftFile"
                    }
                },
                class_body {
                    LCURLY "{",
                    declarations {
                        declaration {
                            constant_declaration {
                                declaration_modifiers {
                                    declaration_modifier {
                                        static "static"
                                    }
                                },
                                let "let",
                                pattern_initializer_list {
                                    pattern_initializer {
                                        pattern {
                                            identifier_pattern {
                                                identifier {
                                                    Identifier "file"
                                                }
                                            },
                                            type_annotation {
                                                COLON ":",
                                                type {
                                                    type_identifier {
                                                        type_name {
                                                            identifier {
                                                                Identifier "String"
                                                            }
                                                        }
                                                    }
                                                }
                                            }
                                        },
                                        initializer {
                                            assignment_operator {
                                                EQUAL "="
                                            },
                                            expression {
                                                prefix_expression {
                                                    postfix_expression {
                                                        primary_expression {
                                                            literal_expression {
                                                                __FILE__ "__FILE__"
                                                            }
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    },
                    RCURLY "}"
                }
            }
        }
    },
    statement {
        declaration {
            class_declaration {
                class "class",
                class_name {
                    identifier {
                        Identifier "TestSwiftFileWithFunction"
                    }
                },
                class_body {
                    LCURLY "{",
                    declarations {
                        declaration {
                            function_declaration {
                                function_head {
                                    func "func"
                                },
                                function_name {
                                    identifier {
                                        Identifier "doWork"
                                    }
                                },
                                function_signature {
                                    parameter_clauses {
                                        parameter_clause {
                                            LPAREN "(",
                                            parameter_list {
                                                parameter {
                                                    local_parameter_name {
                                                        identifier {
                                                            Identifier "a"
                                                        }
                                                    },
                                                    type_annotation {
                                                        COLON ":",
                                                        type {
                                                            type_identifier {
                                                                type_name {
                                                                    identifier {
                                                                        Identifier "Int"
                                                                    }
                                                                }
                                                            }
                                                        }
                                                    }
                                                },
                                                COMMA ",",
                                                parameter {
                                                    external_parameter_name {
                                                        identifier {
                                                            Identifier "andB"
                                                        }
                                                    },
                                                    local_parameter_name {
                                                        identifier {
                                                            Identifier "b"
                                                        }
                                                    },
                                                    type_annotation {
                                                        COLON ":",
                                                        type {
                                                            type_identifier {
                                                                type_name {
                                                                    identifier {
                                                                        Identifier "String"
                                                                    }
                                                                }
                                                            }
                                                        }
                                                    }
                                                }
                                            },
                                            RPAREN ")"
                                        }
                                    },
                                    function_result {
                                        arrow_operator {
                                            SUB "-",
                                            GT ">"
                                        },
                                        type {
                                            LBRACK "[",
                                            type {
                                                type_identifier {
                                                    type_name {
                                                        identifier {
                                                            Identifier "String"
                                                        }
                                                    }
                                                }
                                            },
                                            RBRACK "]"
                                        }
                                    }
                                },
                                function_body {
                                    code_block {
                                        LCURLY "{",
                                        statements {
                                            statement {
                                                control_transfer_statement {
                                                    return_statement {
                                                        return "return",
                                                        expression {
                                                            prefix_expression {
                                                                postfix_expression {
                                                                    primary_expression {
                                                                        literal_expression {
                                                                            array_literal {
                                                                                LBRACK "[",
                                                                                RBRACK "]"
                                                                            }
                                                                        }
                                                                    }
                                                                }
                                                            }
                                                        }
                                                    }
                                                }
                                            }
                                        },
                                        RCURLY "}"
                                    }
                                }
                            }
                        }
                    },
                    RCURLY "}"
                }
            }
        }
    }
}