1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
use std::path::PathBuf;
use swc_common::{
comments::SingleThreadedComments, errors::Handler, sync::Lrc, FileName, SourceMap,
};
use swc_ecma_ast::EsVersion;
use swc_ecma_parser::{
lexer::Lexer, unstable::Capturing, EsSyntax, Parser, StringInput, Syntax, TsSyntax,
};
use swc_ts_fast_strip::{operate, Mode, Options, TransformConfig};
use testing::NormalizedOutput;
#[testing::fixture("tests/fixture/**/*.ts")]
fn test(input: PathBuf) {
let input_code = std::fs::read_to_string(&input).unwrap();
let output_stderr = input.with_extension("swc-stderr");
let output_file = input.with_extension("js");
let transform_output_file = input.with_extension("transform.js");
let err = testing::run_test(false, |cm, handler| {
if let Ok(code) = operate(&cm, handler, input_code.clone(), opts(Mode::StripOnly)) {
let code = code.code;
NormalizedOutput::new_raw(code)
.compare_to_file(output_file)
.unwrap();
}
if handler.has_errors() {
return Err(());
}
Ok(())
});
if let Err(err) = err {
err.compare_to_file(output_stderr).unwrap();
}
testing::run_test(false, |cm, handler| {
let code = operate(&cm, handler, input_code, opts(Mode::Transform))
.expect("should not return Err()")
.code;
NormalizedOutput::new_raw(code)
.compare_to_file(transform_output_file)
.unwrap();
Ok(())
})
.expect("should not fail");
}
#[testing::fixture("../swc_ecma_parser/tests/tsc/**/*.ts")]
fn verify(input: PathBuf) {
let input_code = std::fs::read_to_string(&input).unwrap();
let output = PathBuf::from(
input
.to_string_lossy()
.replace("swc_ecma_parser", "swc_ts_fast_strip"),
);
let output_file = output.with_extension("strip.js");
let output_stderr = output.with_extension("strip.broken");
let err = testing::run_test(false, |cm, handler| {
let code = match operate(&cm, handler, input_code.clone(), opts(Mode::StripOnly)) {
Ok(v) => v.code,
Err(..) => {
// Skip if the input is invalid
return Ok(());
}
};
if handler.has_errors() {
// Skip if the input is invalid
return Ok(());
}
reparse(&cm, handler, &output_file, code.clone());
if handler.has_errors() {
NormalizedOutput::new_raw(code)
.compare_to_file(&output_file)
.unwrap();
return Err(());
}
Ok(())
});
if let Err(err) = err {
err.compare_to_file(output_stderr).unwrap();
} else {
let _ = std::fs::remove_file(&output_file);
let _ = std::fs::remove_file(&output_stderr);
}
}
#[testing::fixture("tests/errors/**/*.ts")]
fn error(input: PathBuf) {
let input_code = std::fs::read_to_string(&input).unwrap();
let output_file = input.with_extension("swc-stderr");
testing::run_test(false, |cm, handler| {
operate(&cm, handler, input_code, opts(Mode::StripOnly)).expect_err("should return Err()");
Err::<(), _>(())
})
.expect_err("should fail")
.compare_to_file(output_file)
.unwrap();
}
fn opts(mode: Mode) -> Options {
Options {
module: None,
filename: None,
parser: TsSyntax {
decorators: true,
..Default::default()
},
mode,
transform: Some(TransformConfig {
typescript: swc_ecma_transforms_typescript::Config {
native_class_properties: true,
..Default::default()
},
#[cfg(feature = "nightly")]
jsx: Default::default(),
}),
deprecated_ts_module_as_error: true.into(),
..Default::default()
}
}
fn reparse(cm: &Lrc<SourceMap>, handler: &Handler, filename: &PathBuf, input: String) {
let filename = FileName::Real(filename.into());
let fm = cm.new_source_file(filename.into(), input);
let syntax = Syntax::Es(EsSyntax {
allow_super_outside_method: true,
auto_accessors: true,
decorators: true,
decorators_before_export: true,
explicit_resource_management: true,
import_attributes: true,
..Default::default()
});
let target = EsVersion::latest();
let comments = SingleThreadedComments::default();
let lexer = Capturing::new(Lexer::new(
syntax,
target,
StringInput::from(&*fm),
Some(&comments),
));
let mut parser = Parser::new_from(lexer);
let program = parser.parse_program();
let errors = parser.take_errors();
match program {
Ok(program) => program,
Err(err) => {
err.into_diagnostic(handler).emit();
for e in errors {
e.into_diagnostic(handler).emit();
}
return;
}
};
if !errors.is_empty() {
for e in errors {
e.into_diagnostic(handler).emit();
}
}
}
|
