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Change to more effcient optionsToString template

This commit is contained in:
Stefan Koch 2018-02-21 15:16:08 +01:00 committed by stefan-koch-sociomantic
parent 06d58ff83a
commit 4f7f37d664
1 changed files with 15 additions and 16 deletions
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31
src/dfmt/main.d
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@ -289,20 +289,19 @@ private version (Windows)
} }
} }
private string optionsToString(E)() if (is(E == enum)) template optionsToString(E) if (is(E == enum))
{ {
import std.traits : EnumMembers; enum optionsToString = () {
import std.conv : to;
string result = "("; string result = "(";
foreach (i, option; EnumMembers!E) foreach (s; [__traits(allMembers, E)])
{ {
immutable s = to!string(option); if (s != "unspecified")
if (s != "unspecified") result ~= s ~ "|";
result ~= s ~ "|"; }
} result = result[0 .. $ - 1] ~ ")";
result = result[0 .. $ - 1] ~ ")"; return result;
return result; } ();
} }
private void printHelp() private void printHelp()
@ -318,12 +317,12 @@ Options:
Formatting Options: Formatting Options:
--align_switch_statements --align_switch_statements
--brace_style `, optionsToString!(typeof(Config.dfmt_brace_style))(), --brace_style `, optionsToString!(typeof(Config.dfmt_brace_style)),
` `
--end_of_line `, optionsToString!(typeof(Config.end_of_line))(), ` --end_of_line `, optionsToString!(typeof(Config.end_of_line)), `
--indent_size --indent_size
--indent_style, -t `, --indent_style, -t `,
optionsToString!(typeof(Config.indent_style))(), ` optionsToString!(typeof(Config.indent_style)), `
--soft_max_line_length --soft_max_line_length
--max_line_length --max_line_length
--outdent_attributes --outdent_attributes
@ -334,7 +333,7 @@ Formatting Options:
--compact_labeled_statements --compact_labeled_statements
--template_constraint_style --template_constraint_style
`, `,
optionsToString!(typeof(Config.dfmt_template_constraint_style))()); optionsToString!(typeof(Config.dfmt_template_constraint_style)));
} }
private string createFilePath(bool readFromStdin, string fileName) private string createFilePath(bool readFromStdin, string fileName)