Added snippet completion for global functions, fixed no snipper completion.
This commit is contained in:
Alexandros Naskos
parent
922559c83a
commit
e46135cb68
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@ -1,13 +1,15 @@
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const std = @import("std");
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const ast = std.zig.ast;
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/// REALLY BAD CODE, PLEASE DON'T USE THIS!!!!!!! (only for testing)
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pub fn getFunctionByName(tree: *std.zig.ast.Tree, name: []const u8) ?*std.zig.ast.Node.FnProto {
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pub fn getFunctionByName(tree: *ast.Tree, name: []const u8) ?*ast.Node.FnProto {
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var decls = tree.root_node.decls.iterator(0);
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while (decls.next()) |decl_ptr| {
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var decl = decl_ptr.*;
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switch (decl.id) {
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.FnProto => {
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const func = decl.cast(std.zig.ast.Node.FnProto).?;
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const func = decl.cast(ast.Node.FnProto).?;
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if (std.mem.eql(u8, tree.tokenSlice(func.name_token.?), name)) return func;
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},
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else => {}
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@ -23,10 +25,10 @@ pub fn getFunctionByName(tree: *std.zig.ast.Tree, name: []const u8) ?*std.zig.as
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///var comments = getFunctionDocComments(allocator, tree, func);
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///defer if (comments) |comments_pointer| allocator.free(comments_pointer);
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///```
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pub fn getDocComments(allocator: *std.mem.Allocator, tree: *std.zig.ast.Tree, node: *std.zig.ast.Node) !?[]const u8 {
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pub fn getDocComments(allocator: *std.mem.Allocator, tree: *ast.Tree, node: *ast.Node) !?[]const u8 {
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switch (node.id) {
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.FnProto => {
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const func = node.cast(std.zig.ast.Node.FnProto).?;
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const func = node.cast(ast.Node.FnProto).?;
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if (func.doc_comments) |doc_comments| {
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var doc_it = doc_comments.lines.iterator(0);
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var lines = std.ArrayList([]const u8).init(allocator);
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@ -42,7 +44,7 @@ pub fn getDocComments(allocator: *std.mem.Allocator, tree: *std.zig.ast.Tree, no
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}
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},
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.VarDecl => {
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const var_decl = node.cast(std.zig.ast.Node.VarDecl).?;
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const var_decl = node.cast(ast.Node.VarDecl).?;
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if (var_decl.doc_comments) |doc_comments| {
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var doc_it = doc_comments.lines.iterator(0);
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var lines = std.ArrayList([]const u8).init(allocator);
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@ -62,18 +64,58 @@ pub fn getDocComments(allocator: *std.mem.Allocator, tree: *std.zig.ast.Tree, no
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}
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/// Gets a function signature (keywords, name, return value)
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pub fn getFunctionSignature(tree: *std.zig.ast.Tree, func: *std.zig.ast.Node.FnProto) []const u8 {
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pub fn getFunctionSignature(tree: *ast.Tree, func: *ast.Node.FnProto) []const u8 {
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const start = tree.tokens.at(func.firstToken()).start;
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const end =
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if (func.body_node) |body| tree.tokens.at(body.firstToken()).start
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else tree.tokens.at(switch (func.return_type) {
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.Explicit, .InferErrorSet => |node| node.lastToken()
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}).end;
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const end = tree.tokens.at(switch (func.return_type) {
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.Explicit, .InferErrorSet => |node| node.lastToken()
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}).end;
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return tree.source[start..end];
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}
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// "@cmpxchgStrong(${1:comptime T: type}, ${2:ptr: *T}, ${3:expected_value: T}, ${4:new_value: T}, ${5:success_order: AtomicOrder}, ${6:fail_order: AtomicOrder})"
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// fooer(${1:arg: var }, ${2:b: usize })
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/// Gets a function snippet insert text
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pub fn getFunctionSnippet(allocator: *std.mem.Allocator, tree: *ast.Tree, func: *ast.Node.FnProto) ![]const u8 {
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// return "cmpxchgStrong(${1:comptime T: type}, ${2:ptr: *T}, ${3:expected_value: T}, ${4:new_value: T}, ${5:success_order: AtomicOrder}, ${6:fail_order: AtomicOrder})";
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const name_tok = func.name_token orelse unreachable;
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var buffer = std.ArrayList(u8).init(allocator);
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try buffer.ensureCapacity(128);
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try buffer.appendSlice(tree.tokenSlice(name_tok));
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try buffer.append('(');
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var buf_stream = buffer.outStream();
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var param_num = @as(usize, 1);
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var param_it = func.params.iterator(0);
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while (param_it.next()) |param_ptr| : (param_num += 1) {
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const param = param_ptr.*;
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if (param_num != 1) try buffer.appendSlice(", ${")
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else try buffer.appendSlice("${");
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try buf_stream.print("{}:", .{param_num});
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var curr_tok = param.firstToken();
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const end_tok = param.lastToken();
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var first_tok = true;
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while (curr_tok <= end_tok) : (curr_tok += 1) {
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try buffer.appendSlice(tree.tokenSlice(curr_tok));
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if (!first_tok and curr_tok != end_tok) try buffer.append(' ')
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else first_tok = false;
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}
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try buffer.append('}');
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}
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try buffer.append(')');
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return buffer.toOwnedSlice();
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}
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/// Gets a function signature (keywords, name, return value)
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pub fn getVariableSignature(tree: *std.zig.ast.Tree, var_decl: *std.zig.ast.Node.VarDecl) []const u8 {
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pub fn getVariableSignature(tree: *ast.Tree, var_decl: *ast.Node.VarDecl) []const u8 {
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const start = tree.tokens.at(var_decl.firstToken()).start;
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const end = tree.tokens.at(var_decl.semicolon_token).start;
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// var end =
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15
src/main.zig
15
src/main.zig
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@ -230,7 +230,7 @@ fn completeGlobal(id: i64, document: *types.TextDocument) !void {
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tree = try std.zig.parse(allocator, sane_text);
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} else return try respondGeneric(id, no_completions_response);
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}
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else {try cacheSane(document);}
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else try cacheSane(document);
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defer tree.deinit();
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@ -240,15 +240,18 @@ fn completeGlobal(id: i64, document: *types.TextDocument) !void {
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// Deallocate all temporary data.
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defer arena.deinit();
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// try log("{}", .{&tree.root_node.decls});
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var decls = tree.root_node.decls.iterator(0);
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while (decls.next()) |decl_ptr| {
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var decl = decl_ptr.*;
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switch (decl.id) {
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.FnProto => {
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const func = decl.cast(std.zig.ast.Node.FnProto).?;
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if (func.name_token) |name_token| {
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const insert_text = if (build_options.no_snippets)
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null
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else
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try analysis.getFunctionSnippet(&arena.allocator, tree, func);
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var doc_comments = try analysis.getDocComments(&arena.allocator, tree, decl);
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var doc = types.MarkupContent{
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.kind = .Markdown,
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@ -259,6 +262,8 @@ fn completeGlobal(id: i64, document: *types.TextDocument) !void {
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.kind = .Function,
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.documentation = doc,
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.detail = analysis.getFunctionSignature(tree, func),
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.insertText = insert_text,
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.insertTextFormat = if(build_options.no_snippets) .PlainText else .Snippet,
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});
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}
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},
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@ -300,12 +305,14 @@ const builtin_completions = block: {
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for (data.builtins) |builtin, i| {
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var cutoff = std.mem.indexOf(u8, builtin, "(") orelse builtin.len;
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const insert_text = if(build_options.no_snippets) builtin[1..cutoff] else builtin[1..];
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temp[i] = .{
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.label = builtin[0..cutoff],
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.kind = .Function,
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.filterText = builtin[1..cutoff],
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.insertText = builtin[1..],
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.insertText = insert_text,
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.detail = data.builtin_details[i],
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.documentation = .{
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.kind = .Markdown,
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