45 lines
1.2 KiB
Dart
45 lines
1.2 KiB
Dart
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import 'package:code_buffer/code_buffer.dart';
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import 'package:test/test.dart';
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/// Use a `CodeBuffer` just like any regular `StringBuffer`:
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String someFunc() {
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var buf = new CodeBuffer();
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buf
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..write('hello ')
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..writeln('world!');
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return buf.toString();
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}
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/// However, a `CodeBuffer` supports indentation.
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void someOtherFunc() {
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var buf = new CodeBuffer();
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// Custom options...
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// ignore: unused_local_variable
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var customBuf = new CodeBuffer(newline: '\r\n', space: '\t', trailingNewline: true);
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// Without whitespace..
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// ignore: unused_local_variable
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var minifyingBuf = new CodeBuffer.noWhitespace();
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// Any following lines will have an incremented indentation level...
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buf.indent();
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// And vice-versa:
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buf.outdent();
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}
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/// `CodeBuffer` instances keep track of every `SourceSpan` they create.
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//This makes them useful for codegen tools, or to-JS compilers.
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void yetAnotherOtherFunc(CodeBuffer buf) {
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buf.write('hello');
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expect(buf.lastLine!.text, 'hello');
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buf.writeln('world');
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expect(buf.lastLine!.lastSpan!.start.column, 5);
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}
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/// You can copy a `CodeBuffer` into another, heeding indentation rules:
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void yetEvenAnotherFunc(CodeBuffer a, CodeBuffer b) {
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b.copyInto(a);
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}
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