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b083f4014b
Format expressions inside string interpolation like the rest (it used to be a+b instead of a + b, not too sure why) Fix formatting some match branches when there were only one statement inside (it was inlined) Fix parsing and formatting some comments edge case on struct field init. You should check out this test because the result is a bit different from before. I personally find it more logical but I would understand if the former format was to stay Fix formatting of void-returning function signature
139 lines
3.1 KiB
V
139 lines
3.1 KiB
V
// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module scanner
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import v.token
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import v.pref
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fn scan_kinds(text string) []token.Kind {
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mut scanner := new_scanner(text, .skip_comments, &pref.Preferences{})
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mut token_kinds := []token.Kind{}
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for {
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tok := scanner.scan()
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if tok.kind == .eof {
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break
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}
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token_kinds << tok.kind
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}
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return token_kinds
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}
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fn test_scan() {
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token_kinds := scan_kinds('println(2 + 3)')
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assert token_kinds.len == 6
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assert token_kinds[0] == .name
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assert token_kinds[1] == .lpar
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assert token_kinds[2] == .number
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assert token_kinds[3] == .plus
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assert token_kinds[4] == .number
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assert token_kinds[5] == .rpar
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}
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fn test_number_constant_input_format() {
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mut c := 0xa0
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assert c == 0xa0
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c = 0b1001
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assert c == 9
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c = 1000000
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assert c == 1000000
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}
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fn test_float_conversion_and_reading() {
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d := 23000000e-3
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assert int(d) == 23000
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mut e := 1.2E3 * -1e-1
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assert e == -120.0
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e = 1.2E3 * 1e-1
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x := 55.
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assert e == 120.0
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assert 1.23e+10 == 1.23e10
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assert 1.23e+10 == 1.23e0010
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assert (-1.23e+10) == (1.23e0010 * -1.0)
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assert x == 55.0
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}
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fn test_float_without_fraction() {
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mut result := scan_kinds('x := 10.')
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assert result.len == 3
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assert result[0] == .name
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assert result[1] == .decl_assign
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assert result[2] == .number
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result = scan_kinds('return 3., 4.')
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assert result.len == 4
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assert result[0] == .key_return
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assert result[1] == .number
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assert result[2] == .comma
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assert result[3] == .number
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result = scan_kinds('fun(5.)')
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assert result.len == 4
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assert result[0] == .name
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assert result[1] == .lpar
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assert result[2] == .number
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assert result[3] == .rpar
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}
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fn test_reference_bools() {
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result := scan_kinds('true && false')
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assert result.len == 3
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assert result[0] == .key_true
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assert result[1] == .and
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assert result[2] == .key_false
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}
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fn test_reference_var() {
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result := scan_kinds('&foo')
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assert result.len == 2
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assert result[0] == .amp
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assert result[1] == .name
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}
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fn test_array_of_references() {
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result := scan_kinds('[]&foo')
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assert result.len == 4
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assert result[0] == .lsbr
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assert result[1] == .rsbr
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assert result[2] == .amp
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assert result[3] == .name
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}
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fn test_ref_array_of_references() {
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result := scan_kinds('&[]&foo')
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assert result.len == 5
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assert result[0] == .amp
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assert result[1] == .lsbr
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assert result[2] == .rsbr
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assert result[3] == .amp
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assert result[4] == .name
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}
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fn test_ref_ref_foo() {
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result := scan_kinds('&&foo')
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assert result.len == 3
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assert result[0] == .amp
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assert result[1] == .amp
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assert result[2] == .name
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}
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fn test_array_of_ref_ref_foo() {
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result := scan_kinds('[]&&foo')
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assert result.len == 5
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assert result[0] == .lsbr
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assert result[1] == .rsbr
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assert result[2] == .amp
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assert result[3] == .amp
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assert result[4] == .name
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}
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fn test_ref_ref_array_ref_ref_foo() {
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result := scan_kinds('&&[]&&foo')
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assert result.len == 7
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assert result[0] == .amp
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assert result[1] == .amp
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assert result[2] == .lsbr
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assert result[3] == .rsbr
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assert result[4] == .amp
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assert result[5] == .amp
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assert result[6] == .name
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}
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