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Detect type functions and require PascalCase, require camelCase for the rest

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This commit is contained in:
Alexandros Naskos 2020-05-08 18:01:34 +03:00
parent ffcdb886d9
commit 29b0045bc7
2 changed files with 44 additions and 22 deletions
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4
src/analysis.zig
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@ -87,3 +87,7 @@ pub fn getVariableSignature(tree: *std.zig.ast.Tree, var_decl: *std.zig.ast.Node
pub fn isCamelCase(name: []const u8) bool {
return !std.ascii.isUpper(name[0]) and std.mem.indexOf(u8, name, "_") == null;
}
pub fn isPascalCase(name: []const u8) bool {
return std.ascii.isUpper(name[0]) and std.mem.indexOf(u8, name, "_") == null;
}

62
src/main.zig
View File

@ -119,6 +119,20 @@ fn cacheSane(document: *types.TextDocument) !void {
document.sane_text = try std.mem.dupe(allocator, u8, document.text);
}
// TODO: Is this correct or can we get a better end?
fn astLocationToRange(loc: std.zig.ast.Tree.Location) types.Range {
return .{
.start = .{
.line = @intCast(i64, loc.line),
.character = @intCast(i64, loc.column),
},
.end = .{
.line = @intCast(i64, loc.line),
.character = @intCast(i64, loc.column),
},
};
}
fn publishDiagnostics(document: *types.TextDocument) !void {
const tree = try std.zig.parse(allocator, document.text);
defer tree.deinit();
@ -140,16 +154,7 @@ fn publishDiagnostics(document: *types.TextDocument) !void {
try tree.renderError(err, fbs.outStream());
try diagnostics.append(.{
.range = .{
.start = .{
.line = @intCast(i64, loc.line),
.character = @intCast(i64, loc.column),
},
.end = .{
.line = @intCast(i64, loc.line),
.character = @intCast(i64, loc.column),
},
},
.range = astLocationToRange(loc),
.severity = .Error,
.code = @tagName(err.*),
.source = "zls",
@ -165,24 +170,37 @@ fn publishDiagnostics(document: *types.TextDocument) !void {
switch (decl.id) {
.FnProto => {
const func = decl.cast(std.zig.ast.Node.FnProto).?;
const is_extern = func.extern_export_inline_token != null;
if (is_extern)
break;
if (func.name_token) |name_token| {
const loc = tree.tokenLocation(0, name_token);
if (func.extern_export_inline_token == null and !analysis.isCamelCase(tree.tokenSlice(name_token))) {
var is_type_function = switch (func.return_type) {
.Explicit => |node| if (node.cast(std.zig.ast.Node.Identifier)) |ident|
std.mem.eql(u8, tree.tokenSlice(ident.token), "type")
else
false,
.InferErrorSet => false,
};
const func_name = tree.tokenSlice(name_token);
if (!is_type_function and !analysis.isCamelCase(func_name)) {
try diagnostics.append(.{
.range = .{
.start = .{
.line = @intCast(i64, loc.line),
.character = @intCast(i64, loc.column),
},
.end = .{
.line = @intCast(i64, loc.line),
.character = @intCast(i64, loc.column),
},
},
.range = astLocationToRange(loc),
.severity = .Information,
.code = "BadStyle",
.source = "zls",
.message = "Callables should be camelCase"
.message = "Functions should be camelCase"
});
} else if (is_type_function and !analysis.isPascalCase(func_name)) {
try diagnostics.append(.{
.range = astLocationToRange(loc),
.severity = .Information,
.code = "BadStyle",
.source = "zls",
.message = "Type functions should be PascalCase"
});
}
}