rewrite folding range (#954)
This commit is contained in:
Techatrix
GitHub
parent
767cf7a52d
commit
1b3c3defb7
245
src/Server.zig
245
src/Server.zig
@ -14,6 +14,7 @@ const offsets = @import("offsets.zig");
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const semantic_tokens = @import("semantic_tokens.zig");
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const inlay_hints = @import("inlay_hints.zig");
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const code_actions = @import("code_actions.zig");
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const folding_range = @import("folding_range.zig");
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const shared = @import("shared.zig");
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const Ast = std.zig.Ast;
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const tracy = @import("tracy.zig");
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@ -2579,250 +2580,10 @@ fn foldingRangeHandler(server: *Server, request: types.FoldingRangeParams) Error
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const tracy_zone = tracy.trace(@src());
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defer tracy_zone.end();
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const Token = std.zig.Token;
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const Node = Ast.Node;
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const allocator = server.arena.allocator();
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const handle = server.document_store.getHandle(request.textDocument.uri) orelse return null;
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const allocator = server.arena.allocator();
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const helper = struct {
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const Inclusivity = enum { inclusive, exclusive };
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fn addTokRange(
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p_ranges: *std.ArrayList(types.FoldingRange),
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tree: Ast,
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start: Ast.TokenIndex,
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end: Ast.TokenIndex,
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end_reach: Inclusivity,
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) std.mem.Allocator.Error!void {
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if (tree.tokensOnSameLine(start, end)) return;
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std.debug.assert(start <= end);
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const start_index = offsets.tokenToIndex(tree, start);
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const end_index = offsets.tokenToIndex(tree, end);
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const start_line = std.mem.count(u8, tree.source[0..start_index], "\n");
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const end_line = start_line + std.mem.count(u8, tree.source[start_index..end_index], "\n");
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try p_ranges.append(.{
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.startLine = @intCast(u32, start_line),
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.endLine = @intCast(u32, end_line) - @boolToInt(end_reach == .exclusive),
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});
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}
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};
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// Used to store the result
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var ranges = std.ArrayList(types.FoldingRange).init(allocator);
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const token_tags: []const Token.Tag = handle.tree.tokens.items(.tag);
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const node_tags: []const Node.Tag = handle.tree.nodes.items(.tag);
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if (token_tags.len == 0) return null;
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if (token_tags[0] == .container_doc_comment) {
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var tok: Ast.TokenIndex = 1;
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while (tok < token_tags.len) : (tok += 1) {
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if (token_tags[tok] != .container_doc_comment) {
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break;
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}
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}
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if (tok > 1) { // each container doc comment has its own line, so each one counts for a line
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try ranges.append(.{
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.startLine = 0,
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.endLine = tok - 1,
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});
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}
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}
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for (node_tags) |node_tag, i| {
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const node = @intCast(Node.Index, i);
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switch (node_tag) {
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.root => continue,
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// only fold the expression pertaining to the if statement, and the else statement, each respectively.
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// TODO: Should folding multiline condition expressions also be supported? Ditto for the other control flow structures.
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.@"if",
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.if_simple,
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=> {
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const if_full = ast.fullIf(handle.tree, node).?;
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const start_tok_1 = ast.lastToken(handle.tree, if_full.ast.cond_expr);
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const end_tok_1 = ast.lastToken(handle.tree, if_full.ast.then_expr);
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try helper.addTokRange(&ranges, handle.tree, start_tok_1, end_tok_1, .inclusive);
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if (if_full.ast.else_expr == 0) continue;
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const start_tok_2 = if_full.else_token;
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const end_tok_2 = ast.lastToken(handle.tree, if_full.ast.else_expr);
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try helper.addTokRange(&ranges, handle.tree, start_tok_2, end_tok_2, .inclusive);
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},
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// same as if/else
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.@"for",
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.for_simple,
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.@"while",
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.while_cont,
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.while_simple,
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=> {
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const loop_full = ast.fullWhile(handle.tree, node).?;
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const start_tok_1 = ast.lastToken(handle.tree, loop_full.ast.cond_expr);
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const end_tok_1 = ast.lastToken(handle.tree, loop_full.ast.then_expr);
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try helper.addTokRange(&ranges, handle.tree, start_tok_1, end_tok_1, .inclusive);
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if (loop_full.ast.else_expr == 0) continue;
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const start_tok_2 = loop_full.else_token;
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const end_tok_2 = ast.lastToken(handle.tree, loop_full.ast.else_expr);
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try helper.addTokRange(&ranges, handle.tree, start_tok_2, end_tok_2, .inclusive);
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},
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.global_var_decl,
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.simple_var_decl,
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.aligned_var_decl,
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.container_field_init,
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.container_field_align,
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.container_field,
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.fn_proto,
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.fn_proto_multi,
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.fn_proto_one,
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.fn_proto_simple,
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.fn_decl,
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=> decl_node_blk: {
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doc_comment_range: {
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const first_tok: Ast.TokenIndex = handle.tree.firstToken(node);
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if (first_tok == 0) break :doc_comment_range;
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const end_doc_tok = first_tok - 1;
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if (token_tags[end_doc_tok] != .doc_comment) break :doc_comment_range;
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var start_doc_tok = end_doc_tok;
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while (start_doc_tok != 0) {
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if (token_tags[start_doc_tok - 1] != .doc_comment) break;
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start_doc_tok -= 1;
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}
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try helper.addTokRange(&ranges, handle.tree, start_doc_tok, end_doc_tok, .inclusive);
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}
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// Function prototype folding regions
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var buffer: [1]Node.Index = undefined;
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const fn_proto = handle.tree.fullFnProto(&buffer, node) orelse
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break :decl_node_blk;
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const list_start_tok: Ast.TokenIndex = fn_proto.lparen;
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const list_end_tok: Ast.TokenIndex = ast.lastToken(handle.tree, fn_proto.ast.proto_node);
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if (handle.tree.tokensOnSameLine(list_start_tok, list_end_tok)) break :decl_node_blk;
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try helper.addTokRange(&ranges, handle.tree, list_start_tok, list_end_tok, .exclusive);
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var it = fn_proto.iterate(&handle.tree);
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while (ast.nextFnParam(&it)) |param| {
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const doc_start_tok = param.first_doc_comment orelse continue;
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var doc_end_tok = doc_start_tok;
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while (token_tags[doc_end_tok + 1] == .doc_comment)
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doc_end_tok += 1;
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try helper.addTokRange(&ranges, handle.tree, doc_start_tok, doc_end_tok, .inclusive);
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}
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},
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.@"catch",
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.@"orelse",
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.multiline_string_literal,
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// TODO: Similar to condition expressions in control flow structures, should folding multiline grouped expressions be enabled?
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// .grouped_expression,
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=> {
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const start_tok = handle.tree.firstToken(node);
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const end_tok = ast.lastToken(handle.tree, node);
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try helper.addTokRange(&ranges, handle.tree, start_tok, end_tok, .inclusive);
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},
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// most other trivial cases can go through here.
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else => {
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switch (node_tag) {
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.array_init,
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.array_init_one,
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.array_init_dot_two,
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.array_init_one_comma,
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.array_init_dot_two_comma,
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.array_init_dot,
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.array_init_dot_comma,
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.array_init_comma,
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.struct_init,
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.struct_init_one,
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.struct_init_one_comma,
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.struct_init_dot_two,
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.struct_init_dot_two_comma,
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.struct_init_dot,
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.struct_init_dot_comma,
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.struct_init_comma,
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.@"switch",
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.switch_comma,
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=> {},
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else => disallow_fold: {
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if (ast.isBlock(handle.tree, node))
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break :disallow_fold;
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if (ast.isCall(handle.tree, node))
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break :disallow_fold;
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if (ast.isBuiltinCall(handle.tree, node))
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break :disallow_fold;
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if (ast.isContainer(handle.tree, node) and node_tag != .root)
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break :disallow_fold;
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continue; // no conditions met, continue iterating without adding this potential folding range
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},
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}
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const start_tok = handle.tree.firstToken(node);
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const end_tok = ast.lastToken(handle.tree, node);
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try helper.addTokRange(&ranges, handle.tree, start_tok, end_tok, .exclusive);
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},
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}
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}
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// Iterate over the source code and look for code regions with #region #endregion
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{
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// We add opened folding regions to a stack as we go and pop one off when we find a closing brace.
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// As an optimization we start with a reasonable capacity, which should work well in most cases since
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// people will almost never have nesting that deep.
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var stack = try std.ArrayList(u32).initCapacity(allocator, 10);
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var i: usize = 0;
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var lines_count: u32 = 0;
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while (i < handle.tree.source.len) : (i += 1) {
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const slice = handle.tree.source[i..];
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if (slice[0] == '\n') {
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lines_count += 1;
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}
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if (std.mem.startsWith(u8, slice, "//#region")) {
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try stack.append(lines_count);
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}
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if (std.mem.startsWith(u8, slice, "//#endregion") and stack.items.len > 0) {
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const start_line = stack.pop();
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const end_line = lines_count;
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// Add brace pairs but discard those from the same line, no need to waste memory on them
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if (start_line != end_line) {
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try ranges.append(.{
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.startLine = start_line,
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.endLine = end_line,
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});
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}
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}
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}
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}
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return ranges.items;
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return try folding_range.generateFoldingRanges(allocator, handle.tree, server.offset_encoding);
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}
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pub const SelectionRange = struct {
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26
src/ast.zig
26
src/ast.zig
@ -976,32 +976,6 @@ pub fn isBuiltinCall(tree: Ast, node: Ast.Node.Index) bool {
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};
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}
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pub fn isCall(tree: Ast, node: Ast.Node.Index) bool {
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return switch (tree.nodes.items(.tag)[node]) {
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.call,
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.call_comma,
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.call_one,
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.call_one_comma,
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.async_call,
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.async_call_comma,
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.async_call_one,
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.async_call_one_comma,
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=> true,
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else => false,
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};
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}
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pub fn isBlock(tree: Ast, node: Ast.Node.Index) bool {
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return switch (tree.nodes.items(.tag)[node]) {
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.block_two,
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.block_two_semicolon,
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.block,
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.block_semicolon,
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=> true,
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else => false,
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};
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}
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/// returns a list of parameters
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pub fn builtinCallParams(tree: Ast, node: Ast.Node.Index, buf: *[2]Ast.Node.Index) ?[]const Node.Index {
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const node_data = tree.nodes.items(.data);
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311
src/folding_range.zig
Normal file
311
src/folding_range.zig
Normal file
@ -0,0 +1,311 @@
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const std = @import("std");
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const ast = @import("ast.zig");
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const types = @import("lsp.zig");
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const offsets = @import("offsets.zig");
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const Ast = std.zig.Ast;
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const FoldingRange = struct {
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loc: offsets.Loc,
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kind: ?types.FoldingRangeKind = null,
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};
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const Inclusivity = enum { inclusive, exclusive };
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const Builder = struct {
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allocator: std.mem.Allocator,
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locations: std.ArrayListUnmanaged(FoldingRange),
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tree: Ast,
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encoding: offsets.Encoding,
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pub fn deinit(builder: *Builder) void {
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builder.locations.deinit(builder.allocator);
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}
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pub fn add(
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builder: *Builder,
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kind: ?types.FoldingRangeKind,
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start: Ast.TokenIndex,
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end: Ast.TokenIndex,
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start_reach: Inclusivity,
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end_reach: Inclusivity,
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) error{OutOfMemory}!void {
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if (builder.tree.tokensOnSameLine(start, end)) return;
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std.debug.assert(start <= end);
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const start_loc = offsets.tokenToLoc(builder.tree, start);
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const end_loc = offsets.tokenToLoc(builder.tree, end);
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try builder.locations.append(builder.allocator, .{
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.loc = .{
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.start = if (start_reach == .exclusive) start_loc.end else start_loc.start,
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.end = if (end_reach == .exclusive) end_loc.start else end_loc.end,
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},
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.kind = kind,
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});
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}
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pub fn addNode(
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builder: *Builder,
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kind: ?types.FoldingRangeKind,
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node: Ast.Node.Index,
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start_reach: Inclusivity,
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end_reach: Inclusivity,
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) error{OutOfMemory}!void {
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try builder.add(kind, builder.tree.firstToken(node), ast.lastToken(builder.tree, node), start_reach, end_reach);
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}
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pub fn getRanges(builder: Builder) error{OutOfMemory}![]types.FoldingRange {
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var result = try builder.allocator.alloc(types.FoldingRange, builder.locations.items.len);
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errdefer builder.allocator.free(result);
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for (result) |*r, i| {
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r.* = .{
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.startLine = undefined,
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.endLine = undefined,
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.kind = builder.locations.items[i].kind,
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};
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}
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const Item = struct {
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output: *types.FoldingRange,
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input: *const FoldingRange,
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where: enum { start, end },
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const Self = @This();
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fn getInputIndex(self: Self) usize {
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return switch (self.where) {
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.start => self.input.loc.start,
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.end => self.input.loc.end,
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};
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}
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fn lessThan(_: void, lhs: Self, rhs: Self) bool {
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return lhs.getInputIndex() < rhs.getInputIndex();
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}
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};
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// one item for every start and end position
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var items = try builder.allocator.alloc(Item, builder.locations.items.len * 2);
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defer builder.allocator.free(items);
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for (builder.locations.items) |*folding_range, i| {
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items[2 * i + 0] = .{ .output = &result[i], .input = folding_range, .where = .start };
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items[2 * i + 1] = .{ .output = &result[i], .input = folding_range, .where = .end };
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}
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// sort items based on their source position
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std.sort.sort(Item, items, {}, Item.lessThan);
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var last_index: usize = 0;
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var last_position: types.Position = .{ .line = 0, .character = 0 };
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for (items) |item| {
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const index = item.getInputIndex();
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const position = offsets.advancePosition(builder.tree.source, last_position, last_index, index, builder.encoding);
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defer last_index = index;
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defer last_position = position;
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switch (item.where) {
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.start => {
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item.output.startLine = position.line;
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item.output.startCharacter = position.character;
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},
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.end => {
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item.output.endLine = position.line;
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item.output.endCharacter = position.character;
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},
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}
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}
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return result;
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}
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};
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pub fn generateFoldingRanges(allocator: std.mem.Allocator, tree: Ast, encoding: offsets.Encoding) error{OutOfMemory}![]types.FoldingRange {
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var builder = Builder{
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.allocator = allocator,
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.locations = .{},
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.tree = tree,
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.encoding = encoding,
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};
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defer builder.deinit();
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const token_tags = tree.tokens.items(.tag);
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const node_tags = tree.nodes.items(.tag);
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const main_tokens = tree.nodes.items(.main_token);
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var start_doc_comment: ?Ast.TokenIndex = null;
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var end_doc_comment: ?Ast.TokenIndex = null;
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for (token_tags) |tag, i| {
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const token = @intCast(Ast.TokenIndex, i);
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switch (tag) {
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.doc_comment,
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.container_doc_comment,
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=> {
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if (start_doc_comment == null) {
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start_doc_comment = token;
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end_doc_comment = token;
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} else {
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end_doc_comment = token;
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}
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},
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else => {
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if (start_doc_comment != null and end_doc_comment != null) {
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try builder.add(.comment, start_doc_comment.?, end_doc_comment.?, .inclusive, .inclusive);
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start_doc_comment = null;
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end_doc_comment = null;
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}
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},
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}
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}
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// TODO add folding range normal comments
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// TODO add folding range for top level `@Import()`
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for (node_tags) |node_tag, i| {
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const node = @intCast(Ast.Node.Index, i);
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|
||||
switch (node_tag) {
|
||||
.root => continue,
|
||||
// TODO: Should folding multiline condition expressions also be supported? Ditto for the other control flow structures.
|
||||
|
||||
.fn_proto,
|
||||
.fn_proto_multi,
|
||||
.fn_proto_one,
|
||||
.fn_proto_simple,
|
||||
// .fn_decl
|
||||
=> {
|
||||
var buffer: [1]Ast.Node.Index = undefined;
|
||||
const fn_proto = tree.fullFnProto(&buffer, node).?;
|
||||
|
||||
const list_start_tok = fn_proto.lparen;
|
||||
const list_end_tok = ast.lastToken(tree, node) -| 1;
|
||||
|
||||
try builder.add(null, list_start_tok, list_end_tok, .exclusive, .exclusive);
|
||||
},
|
||||
|
||||
.block_two,
|
||||
.block_two_semicolon,
|
||||
.block,
|
||||
.block_semicolon,
|
||||
=> {
|
||||
try builder.addNode(null, node, .exclusive, .exclusive);
|
||||
},
|
||||
.@"switch",
|
||||
.switch_comma,
|
||||
=> {
|
||||
const lhs = tree.nodes.items(.data)[node].lhs;
|
||||
const start_tok = ast.lastToken(tree, lhs) + 2; // lparen + rbrace
|
||||
const end_tok = ast.lastToken(tree, node);
|
||||
try builder.add(null, start_tok, end_tok, .exclusive, .exclusive);
|
||||
},
|
||||
|
||||
.switch_case_one,
|
||||
.switch_case_inline_one,
|
||||
.switch_case,
|
||||
.switch_case_inline,
|
||||
=> {
|
||||
const switch_case = tree.fullSwitchCase(node).?.ast;
|
||||
if (switch_case.values.len >= 4) {
|
||||
const first_value = tree.firstToken(switch_case.values[0]);
|
||||
const last_value = ast.lastToken(tree, switch_case.values[switch_case.values.len - 1]);
|
||||
try builder.add(null, first_value, last_value, .inclusive, .inclusive);
|
||||
}
|
||||
},
|
||||
|
||||
.container_decl,
|
||||
.container_decl_trailing,
|
||||
.container_decl_arg,
|
||||
.container_decl_arg_trailing,
|
||||
.container_decl_two,
|
||||
.container_decl_two_trailing,
|
||||
.tagged_union,
|
||||
.tagged_union_trailing,
|
||||
.tagged_union_two,
|
||||
.tagged_union_two_trailing,
|
||||
.tagged_union_enum_tag,
|
||||
.tagged_union_enum_tag_trailing,
|
||||
=> {
|
||||
var buffer: [2]Ast.Node.Index = undefined;
|
||||
const container_decl = tree.fullContainerDecl(&buffer, node).?;
|
||||
if (container_decl.ast.members.len != 0) {
|
||||
const first_member = container_decl.ast.members[0];
|
||||
const start_tok = tree.firstToken(first_member) -| 1;
|
||||
const end_tok = ast.lastToken(tree, node);
|
||||
try builder.add(null, start_tok, end_tok, .exclusive, .exclusive);
|
||||
}
|
||||
},
|
||||
|
||||
.call,
|
||||
.call_comma,
|
||||
.call_one,
|
||||
.call_one_comma,
|
||||
.async_call,
|
||||
.async_call_comma,
|
||||
.async_call_one,
|
||||
.async_call_one_comma,
|
||||
=> {
|
||||
const lparen = main_tokens[node];
|
||||
try builder.add(null, lparen, ast.lastToken(tree, node), .exclusive, .exclusive);
|
||||
},
|
||||
|
||||
// everything after here is mostly untested
|
||||
.array_init,
|
||||
.array_init_one,
|
||||
.array_init_dot_two,
|
||||
.array_init_one_comma,
|
||||
.array_init_dot_two_comma,
|
||||
.array_init_dot,
|
||||
.array_init_dot_comma,
|
||||
.array_init_comma,
|
||||
|
||||
.struct_init,
|
||||
.struct_init_one,
|
||||
.struct_init_one_comma,
|
||||
.struct_init_dot_two,
|
||||
.struct_init_dot_two_comma,
|
||||
.struct_init_dot,
|
||||
.struct_init_dot_comma,
|
||||
.struct_init_comma,
|
||||
|
||||
.builtin_call,
|
||||
.builtin_call_comma,
|
||||
.builtin_call_two,
|
||||
.builtin_call_two_comma,
|
||||
|
||||
.multiline_string_literal,
|
||||
.error_set_decl,
|
||||
.test_decl,
|
||||
=> {
|
||||
try builder.addNode(null, node, .inclusive, .inclusive);
|
||||
},
|
||||
|
||||
else => {},
|
||||
}
|
||||
}
|
||||
|
||||
// We add opened folding regions to a stack as we go and pop one off when we find a closing brace.
|
||||
var stack = std.ArrayListUnmanaged(usize){};
|
||||
|
||||
var i: usize = 0;
|
||||
while (std.mem.indexOfPos(u8, tree.source, i, "//#")) |possible_region| {
|
||||
defer i = possible_region + "//#".len;
|
||||
if (std.mem.startsWith(u8, tree.source[possible_region..], "//#region")) {
|
||||
try stack.append(allocator, possible_region);
|
||||
} else if (std.mem.startsWith(u8, tree.source[possible_region..], "//#endregion")) {
|
||||
const start_index = stack.popOrNull() orelse break; // null means there are more endregions than regions
|
||||
const end_index = offsets.lineLocAtIndex(tree.source, possible_region).end;
|
||||
const is_same_line = std.mem.indexOfScalar(u8, tree.source[start_index..end_index], '\n') == null;
|
||||
if (is_same_line) continue;
|
||||
try builder.locations.append(allocator, .{
|
||||
.loc = .{
|
||||
.start = start_index,
|
||||
.end = end_index,
|
||||
},
|
||||
.kind = .region,
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
return try builder.getRanges();
|
||||
}
|
||||
@ -11,34 +11,197 @@ const types = zls.types;
|
||||
const allocator: std.mem.Allocator = std.testing.allocator;
|
||||
|
||||
test "foldingRange - empty" {
|
||||
try testFoldingRange("", "[]");
|
||||
try testFoldingRange("", &.{});
|
||||
}
|
||||
|
||||
test "foldingRange - smoke" {
|
||||
test "foldingRange - doc comment" {
|
||||
try testFoldingRange(
|
||||
\\/// hello
|
||||
\\/// world
|
||||
\\var foo = 5;
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 0, .endLine = 1, .endCharacter = 9, .kind = .comment },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - region" {
|
||||
try testFoldingRange(
|
||||
\\const foo = 0;
|
||||
\\//#region
|
||||
\\const bar = 1;
|
||||
\\//#endregion
|
||||
\\const baz = 2;
|
||||
, &.{
|
||||
.{ .startLine = 1, .startCharacter = 0, .endLine = 3, .endCharacter = 12, .kind = .region },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\//#region
|
||||
\\const foo = 0;
|
||||
\\//#region
|
||||
\\const bar = 1;
|
||||
\\//#endregion
|
||||
\\const baz = 2;
|
||||
\\//#endregion
|
||||
, &.{
|
||||
.{ .startLine = 2, .startCharacter = 0, .endLine = 4, .endCharacter = 12, .kind = .region },
|
||||
.{ .startLine = 0, .startCharacter = 0, .endLine = 6, .endCharacter = 12, .kind = .region },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - if" {
|
||||
try testFoldingRange(
|
||||
\\const foo = if (false) {
|
||||
\\
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 24, .endLine = 2, .endCharacter = 0 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\const foo = if (false) {
|
||||
\\
|
||||
\\} else {
|
||||
\\
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 24, .endLine = 2, .endCharacter = 0 },
|
||||
.{ .startLine = 2, .startCharacter = 8, .endLine = 4, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - for/while" {
|
||||
try testFoldingRange(
|
||||
\\const foo = for ("") |_| {
|
||||
\\
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 26, .endLine = 2, .endCharacter = 0 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\const foo = while (true) {
|
||||
\\
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 26, .endLine = 2, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - switch" {
|
||||
try testFoldingRange(
|
||||
\\const foo = switch (5) {
|
||||
\\ 0 => {},
|
||||
\\ 1 => {}
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 24, .endLine = 3, .endCharacter = 0 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\const foo = switch (5) {
|
||||
\\ 0 => {},
|
||||
\\ 1 => {},
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 24, .endLine = 3, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - function" {
|
||||
try testFoldingRange(
|
||||
\\fn main() u32 {
|
||||
\\ return 1 + 1;
|
||||
\\}
|
||||
,
|
||||
\\[{"startLine":0,"endLine":1}]
|
||||
);
|
||||
}
|
||||
|
||||
test "foldingRange - #801" {
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 15, .endLine = 2, .endCharacter = 0 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\fn score(c: u8) !u32 {
|
||||
\\ return switch(c) {
|
||||
\\ 'a'...'z' => c - 'a',
|
||||
\\ 'A'...'Z' => c - 'A',
|
||||
\\ _ => error
|
||||
\\ };
|
||||
\\fn main(
|
||||
\\ a: ?u32,
|
||||
\\) u32 {
|
||||
\\ return 1 + 1;
|
||||
\\}
|
||||
,
|
||||
\\[{"startLine":1,"endLine":4},{"startLine":0,"endLine":5}]
|
||||
);
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 8, .endLine = 2, .endCharacter = 0 },
|
||||
.{ .startLine = 2, .startCharacter = 7, .endLine = 4, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
fn testFoldingRange(source: []const u8, expect: []const u8) !void {
|
||||
test "foldingRange - function with doc comment" {
|
||||
try testFoldingRange(
|
||||
\\/// this is
|
||||
\\/// a function
|
||||
\\fn foo(
|
||||
\\ /// this is a parameter
|
||||
\\ a: u32,
|
||||
\\ ///
|
||||
\\ /// this is another parameter
|
||||
\\ b: u32,
|
||||
\\) void {}
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 0, .endLine = 1, .endCharacter = 14, .kind = .comment },
|
||||
.{ .startLine = 5, .startCharacter = 4, .endLine = 6, .endCharacter = 33, .kind = .comment },
|
||||
.{ .startLine = 2, .startCharacter = 7, .endLine = 8, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - container decl" {
|
||||
try testFoldingRange(
|
||||
\\const Foo = struct {
|
||||
\\ alpha: u32,
|
||||
\\ beta: []const u8,
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 20, .endLine = 3, .endCharacter = 0 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\const Foo = packed struct(u32) {
|
||||
\\ alpha: u16,
|
||||
\\ beta: u16,
|
||||
\\};
|
||||
, &.{
|
||||
// .{ .startLine = 0, .startCharacter = 32, .endLine = 3, .endCharacter = 0 }, // TODO
|
||||
.{ .startLine = 0, .startCharacter = 32, .endLine = 2, .endCharacter = 11 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\const Foo = union {
|
||||
\\ alpha: u32,
|
||||
\\ beta: []const u8,
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 19, .endLine = 3, .endCharacter = 0 },
|
||||
});
|
||||
try testFoldingRange(
|
||||
\\const Foo = union(enum) {
|
||||
\\ alpha: u32,
|
||||
\\ beta: []const u8,
|
||||
\\};
|
||||
, &.{
|
||||
.{ .startLine = 0, .startCharacter = 25, .endLine = 3, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - call" {
|
||||
try testFoldingRange(
|
||||
\\extern fn foo(a: bool, b: ?usize) void;
|
||||
\\const result = foo(
|
||||
\\ false,
|
||||
\\ null,
|
||||
\\);
|
||||
, &.{
|
||||
.{ .startLine = 1, .startCharacter = 19, .endLine = 4, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
test "foldingRange - multi-line string literal" {
|
||||
try testFoldingRange(
|
||||
\\const foo =
|
||||
\\ \\hello
|
||||
\\ \\world
|
||||
\\;
|
||||
, &.{
|
||||
.{ .startLine = 1, .startCharacter = 4, .endLine = 3, .endCharacter = 0 },
|
||||
});
|
||||
}
|
||||
|
||||
fn testFoldingRange(source: []const u8, expect: []const types.FoldingRange) !void {
|
||||
var ctx = try Context.init();
|
||||
defer ctx.deinit();
|
||||
|
||||
@ -53,16 +216,16 @@ fn testFoldingRange(source: []const u8, expect: []const u8) !void {
|
||||
|
||||
const response = try ctx.requestGetResponse(?[]types.FoldingRange, "textDocument/foldingRange", params);
|
||||
|
||||
var actual = std.ArrayList(u8).init(allocator);
|
||||
defer actual.deinit();
|
||||
var actual = std.ArrayListUnmanaged(u8){};
|
||||
defer actual.deinit(allocator);
|
||||
|
||||
try tres.stringify(response.result, .{
|
||||
.emit_null_optional_fields = false,
|
||||
}, actual.writer());
|
||||
try expectEqualJson(expect, actual.items);
|
||||
}
|
||||
var expected = std.ArrayListUnmanaged(u8){};
|
||||
defer expected.deinit(allocator);
|
||||
|
||||
const options = std.json.StringifyOptions{ .emit_null_optional_fields = false, .whitespace = .{ .indent = .None } };
|
||||
try tres.stringify(response.result, options, actual.writer(allocator));
|
||||
try tres.stringify(expect, options, expected.writer(allocator));
|
||||
|
||||
fn expectEqualJson(expect: []const u8, actual: []const u8) !void {
|
||||
// TODO: Actually compare strings as JSON values.
|
||||
return std.testing.expectEqualStrings(expect, actual);
|
||||
try std.testing.expectEqualStrings(expected.items, actual.items);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user