2748 lines
104 KiB
Zig
2748 lines
104 KiB
Zig
const std = @import("std");
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const DocumentStore = @import("document_store.zig");
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const ast = std.zig.ast;
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const types = @import("types.zig");
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const offsets = @import("offsets.zig");
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const log = std.log.scoped(.analysis);
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/// Get a declaration's doc comment token index
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pub fn getDocCommentTokenIndex(tree: ast.Tree, node: ast.Node.Index) ?ast.TokenIndex {
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const tags = tree.nodes.items(.tag);
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const tokens = tree.tokens.items(.tag);
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const current = tree.nodes.items(.main_token)[node];
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switch (tags[node]) {
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.fn_proto, .fn_proto_one, .fn_proto_simple, .fn_proto_multi => {
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var idx = current - 1;
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idx -= @boolToInt(tokens[idx] == .keyword_extern);
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idx -= @boolToInt(tokens[idx] == .keyword_pub);
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return if (tokens[idx] == .doc_comment) idx else null;
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},
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.local_var_decl, .global_var_decl, .aligned_var_decl, .simple_var_decl => {
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return if (tokens[current - 1] == .doc_comment) current - 1 else null;
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},
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.container_field, .container_field_init, .container_field_align => {
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var idx = current - 2; // skip '.'
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return if (tokens[idx] == .doc_comment) idx else null;
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},
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else => return null,
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}
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// @TODO: Implement doc comments for tags
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// } else if (node.castTag(.ErrorTag)) |tag| {
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// return tag.doc_comments;
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// }
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return null;
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}
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/// Gets a declaration's doc comments, caller must free memory when a value is returned
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/// Like:
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///```zig
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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(
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allocator: *std.mem.Allocator,
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tree: ast.Tree,
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node: ast.Node.Index,
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format: types.MarkupContent.Kind,
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) !?[]const u8 {
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if (getDocCommentTokenIndex(tree, node)) |doc_comment_index| {
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return try collectDocComments(allocator, tree, doc_comment_index, format);
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}
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return null;
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}
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pub fn collectDocComments(
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allocator: *std.mem.Allocator,
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tree: ast.Tree,
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doc_comments: ast.TokenIndex,
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format: types.MarkupContent.Kind,
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) ![]const u8 {
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var lines = std.ArrayList([]const u8).init(allocator);
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defer lines.deinit();
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const token_tags = tree.tokens.items(.tag);
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const loc = tree.tokenLocation(0, doc_comments);
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var curr_line_tok = doc_comments;
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while (true) : (curr_line_tok += 1) {
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switch (token_tags[curr_line_tok]) {
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.doc_comment, .container_doc_comment => {
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try lines.append(std.mem.trim(u8, tree.tokenSlice(curr_line_tok)[3..], &std.ascii.spaces));
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},
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else => break,
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}
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}
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return try std.mem.join(allocator, if (format == .Markdown) " \n" else "\n", lines.items);
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}
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/// Gets a function signature (keywords, name, return value)
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pub fn getFunctionSignature(tree: ast.Tree, func: ast.full.FnProto) []const u8 {
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const start = tree.tokenLocation(0, func.ast.fn_token).line_start;
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const end = tree.tokenLocation(0, func.ast.return_type).line_end;
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return tree.source[start..end];
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}
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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.full.FnProto, skip_self_param: bool) ![]const u8 {
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const name_index = 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_index));
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try buffer.append('(');
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var buf_stream = buffer.writer();
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const token_tags = tree.tokens.items(.tag);
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var it = func.iterate(tree);
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while (it.next()) |param| {
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if (skip_self_param and it.param_i == 0) continue;
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if (it.param_i != @boolToInt(skip_self_param)) try buffer.appendSlice(", ${") else try buffer.appendSlice("${");
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try buf_stream.print("{d}", .{it.param_i + 1});
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if (param.comptime_noalias) |token_index| {
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if (token_tags[token_index] == .keyword_comptime)
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try buffer.appendSlice("comptime ")
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else
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try buffer.appendSlice("noalias ");
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}
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if (param.name_token) |name_token| {
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try buffer.appendSlice(tree.tokenSlice(name_token));
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try buffer.appendSlice(": ");
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}
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if (param.anytype_ellipsis3) |token_index| {
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if (token_tags[token_index] == .keyword_anytype)
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try buffer.appendSlice("anytype")
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else
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try buffer.appendSlice("...");
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} else {
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var curr_token = param.type_expr;
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var end_token = tree.lastToken(func.ast.params[it.param_i]);
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while (curr_token <= end_token) : (curr_token += 1) {
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const tag = token_tags[curr_token];
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const is_comma = tag == .comma;
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if (curr_token == end_token and is_comma) continue;
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try buffer.appendSlice(tree.tokenSlice(curr_token));
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if (is_comma or tag == .keyword_const) try buffer.append(' ');
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}
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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: ast.Tree, var_decl: ast.full.VarDecl) []const u8 {
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const start = tree.tokenLocation(0, var_decl.ast.mut_token).line_start;
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const end = tree.tokenLocation(@truncate(u32, start), tree.lastToken(var_decl.ast.init_node)).line_end;
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return tree.source[start..end];
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}
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// analysis.getContainerFieldSignature(handle.tree, field)
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pub fn getContainerFieldSignature(tree: ast.Tree, field: ast.full.ContainerField) []const u8 {
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const start = tree.tokenLocation(0, field.ast.name_token).line_start;
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const end = tree.tokenLocation(@truncate(u32, start), tree.lastToken(field.ast.value_expr)).line_start;
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return tree.source[start..end];
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}
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/// The type node is "type"
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fn typeIsType(tree: ast.Tree, node: ast.Node.Index) bool {
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if (tree.nodes.items(.tag)[node] == .identifier) {
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return std.mem.eql(u8, tree.tokenSlice(node), "type");
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}
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return false;
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}
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pub fn isTypeFunction(tree: ast.Tree, func: ast.full.FnProto) bool {
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return typeIsType(tree, func.ast.return_type);
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}
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pub fn isGenericFunction(tree: ast.Tree, func: *ast.full.FnProto) bool {
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var it = func.iterate();
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var slice = tree.nodes.items(.tag);
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while (it.next()) |param| {
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if (param.anytype_ellipsis3 != null or param.comptime_noalias != null) {
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return true;
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}
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}
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return false;
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}
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// STYLE
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pub fn isCamelCase(name: []const u8) bool {
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return !std.ascii.isUpper(name[0]) and std.mem.indexOf(u8, name[0..(name.len - 1)], "_") == null;
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}
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pub fn isPascalCase(name: []const u8) bool {
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return std.ascii.isUpper(name[0]) and std.mem.indexOf(u8, name[0..(name.len - 1)], "_") == null;
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}
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// ANALYSIS ENGINE
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pub fn getDeclNameToken(tree: ast.Tree, node: ast.Node.Index) ?ast.TokenIndex {
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const tags = tree.nodes.items(.tag);
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switch (tags[node]) {
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// regular declaration names. + 1 to mut token because name comes after 'const'/'var'
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.local_var_decl => return tree.localVarDecl(node).ast.mut_token + 1,
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.global_var_decl => return tree.globalVarDecl(node).ast.mut_token + 1,
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.simple_var_decl => return tree.simpleVarDecl(node).ast.mut_token + 1,
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.aligned_var_decl => return tree.alignedVarDecl(node).ast.mut_token + 1,
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// function declaration names
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.fn_proto => return tree.fnProto(node).name_token,
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.fn_proto_simple => {
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var params: [1]ast.Node.Index = undefined;
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return tree.fnProtoSimple(¶ms, node).name_token;
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},
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.fn_proto_one => {
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var params: [1]ast.Node.Index = undefined;
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return tree.fnProtoOne(¶ms, node).name_token;
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},
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.fn_proto_multi => return tree.fnProtoMulti(node).name_token,
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// containers
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.container_field => return tree.containerField(node).ast.name_token,
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.container_field_init => return tree.containerFieldInit(node).ast.name_token,
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.container_field_align => return tree.containerFieldAlign(node).ast.name_token,
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// @TODO: Errors
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// .error_=> {
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// const tag = node.castTag(.ErrorTag).?;
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// return tag.name_token;
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// },
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// lhs of main token is name token, so use `node` - 1
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.test_decl => return getDeclNameToken(tree, node - 1),
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else => {},
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}
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return null;
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}
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fn getDeclName(tree: ast.Tree, node: ast.Node.Index) ?[]const u8 {
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const name = tree.tokenSlice(getDeclNameToken(tree, node) orelse return null);
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return switch (tree.nodes.items(.tag)[node]) {
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.test_decl => name[1 .. name.len - 1],
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else => name,
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};
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}
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fn isContainerDecl(decl_handle: DeclWithHandle) bool {
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return switch (decl_handle.decl.*) {
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.ast_node => |inner_node| isContainer(decl_handle.handle.tree.nodes.items(.tag)[inner_node]) or inner_node == 0,
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else => false,
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};
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}
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fn resolveVarDeclAliasInternal(
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store: *DocumentStore,
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arena: *std.heap.ArenaAllocator,
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node_handle: NodeWithHandle,
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root: bool,
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) error{OutOfMemory}!?DeclWithHandle {
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const handle = node_handle.handle;
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const tree = handle.tree;
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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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const datas = tree.nodes.items(.data);
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if (node_tags[node_handle.node] == .identifier) {
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const token = main_tokens[node_handle.node];
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return try lookupSymbolGlobal(
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store,
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arena,
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handle,
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tree.tokenSlice(token),
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tree.tokenLocation(0, token).line_start,
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);
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}
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if (node_tags[node_handle.node] == .field_access) {
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const lhs = datas[node_handle.node].lhs;
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const container_node = if (isBuiltinCall(tree, lhs)) block: {
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const builtin = builtinCallParams(tree, lhs);
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if (!std.mem.eql(u8, tree.tokenSlice(main_tokens[lhs]), "@import"))
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return null;
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const inner_node = (try resolveTypeOfNode(store, arena, .{ .node = lhs, .handle = handle })) orelse return null;
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// assert root node
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std.debug.assert(inner_node.type.data.other == 0);
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break :block NodeWithHandle{ .node = inner_node.type.data.other, .handle = inner_node.handle };
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} else if (try resolveVarDeclAliasInternal(store, arena, .{ .node = lhs, .handle = handle }, false)) |decl_handle| block: {
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if (decl_handle.decl.* != .ast_node) return null;
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const resolved = (try resolveTypeOfNode(store, arena, .{ .node = decl_handle.decl.ast_node, .handle = decl_handle.handle })) orelse return null;
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const resolved_node = switch (resolved.type.data) {
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.other => |n| n,
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else => return null,
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};
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if (!isContainer(node_tags[resolved_node])) return null;
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break :block NodeWithHandle{ .node = resolved_node, .handle = resolved.handle };
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} else return null;
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if (try lookupSymbolContainer(store, arena, container_node, tree.tokenSlice(tree.firstToken(datas[lhs].rhs)), false)) |inner_decl| {
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if (root) return inner_decl;
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return inner_decl;
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}
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}
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return null;
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}
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/// Resolves variable declarations consisting of chains of imports and field accesses of containers, ending with the same name as the variable decl's name
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/// Examples:
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///```zig
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/// const decl = @import("decl-file.zig").decl;
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/// const other = decl.middle.other;
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///```
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pub fn resolveVarDeclAlias(store: *DocumentStore, arena: *std.heap.ArenaAllocator, decl_handle: NodeWithHandle) !?DeclWithHandle {
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const decl = decl_handle.node;
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const handle = decl_handle.handle;
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const tree = handle.tree;
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const token_tags = tree.tokens.items(.tag);
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const main_tokes = tree.nodes.items(.main_token);
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const node_tags = tree.nodes.items(.tag);
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if (varDecl(handle.tree, decl)) |var_decl| {
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if (var_decl.ast.init_node == 0) return null;
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const base_exp = var_decl.ast.init_node;
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if (token_tags[main_tokes[base_exp]] != .keyword_const) return null;
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if (node_tags[base_exp] == .field_access) {
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const name = tree.tokenSlice(tree.firstToken(tree.nodes.items(.data)[base_exp].rhs));
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if (!std.mem.eql(u8, tree.tokenSlice(var_decl.ast.mut_token + 1), name))
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return null;
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return try resolveVarDeclAliasInternal(store, arena, .{ .node = base_exp, .handle = handle }, true);
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}
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}
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return null;
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}
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fn findReturnStatementInternal(
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tree: ast.Tree,
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fn_decl: *ast.Node.FnProto,
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base_node: *ast.Node,
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already_found: *bool,
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) ?*ast.Node.ControlFlowExpression {
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var result: ?*ast.Node.ControlFlowExpression = null;
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var child_idx: usize = 0;
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while (base_node.iterate(child_idx)) |child_node| : (child_idx += 1) {
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if (child_node.castTag(.Return)) |cfe| {
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// If we are calling ourselves recursively, ignore this return.
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if (cfe.getRHS()) |rhs| {
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if (rhs.castTag(.Call)) |call_node| {
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if (call_node.lhs.tag == .Identifier) {
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if (std.mem.eql(u8, getDeclName(tree, call_node.lhs).?, getDeclName(tree, &fn_decl.base).?)) {
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continue;
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}
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}
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}
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}
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if (already_found.*) return null;
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already_found.* = true;
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result = cfe;
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continue;
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}
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result = findReturnStatementInternal(tree, fn_decl, child_node, already_found);
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}
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return result;
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}
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fn findReturnStatement(tree: ast.Tree, fn_decl: *ast.Node.FnProto) ?*ast.Node.ControlFlowExpression {
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var already_found = false;
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return findReturnStatementInternal(tree, fn_decl, fn_decl.getBodyNode().?, &already_found);
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}
|
|
|
|
/// Resolves the return type of a function
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|
pub fn resolveReturnType(
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store: *DocumentStore,
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arena: *std.heap.ArenaAllocator,
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fn_decl: ast.full.FnProto,
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handle: *DocumentStore.Handle,
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|
bound_type_params: *BoundTypeParams,
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|
) !?TypeWithHandle {
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// @TODO: Confirm this can handle inferred error sets etc
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return resolveTypeOfNodeInternal(store, arena, .{
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.node = fn_decl.ast.return_type,
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.handle = handle,
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}, bound_type_params);
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}
|
|
|
|
/// Resolves the child type of an optional type
|
|
fn resolveUnwrapOptionalType(
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|
store: *DocumentStore,
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|
arena: *std.heap.ArenaAllocator,
|
|
opt: TypeWithHandle,
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|
bound_type_params: *BoundTypeParams,
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|
) !?TypeWithHandle {
|
|
const opt_node = switch (opt.type.data) {
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.other => |n| n,
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|
else => return null,
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|
};
|
|
|
|
if (opt.handle.tree.nodes.items(.tag)[opt_node] == .optional_type) {
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|
return ((try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = opt.handle.tree.nodes.items(.data)[opt_node].lhs,
|
|
.handle = opt.handle,
|
|
}, bound_type_params)) orelse return null).instanceTypeVal();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
fn resolveUnwrapErrorType(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
rhs: TypeWithHandle,
|
|
bound_type_params: *BoundTypeParams,
|
|
) !?TypeWithHandle {
|
|
const rhs_node = switch (rhs.type.data) {
|
|
.other => |n| n,
|
|
.error_union => |n| return TypeWithHandle{
|
|
.type = .{ .data = .{ .other = n }, .is_type_val = rhs.type.is_type_val },
|
|
.handle = rhs.handle,
|
|
},
|
|
.primitive, .slice, .pointer => return null,
|
|
};
|
|
if (rhs.handle.tree.nodes.items(.tag)[rhs_node] == .error_union) {
|
|
return ((try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = rhs.handle.tree.nodes.items(.data)[rhs_node].rhs,
|
|
.handle = rhs.handle,
|
|
}, bound_type_params)) orelse return null).instanceTypeVal();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
pub fn isPtrType(tree: ast.Tree, node: ast.Node.Index) bool {
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.ptr_type,
|
|
.ptr_type_aligned,
|
|
.ptr_type_bit_range,
|
|
.ptr_type_sentinel,
|
|
=> true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
/// Resolves the child type of a deref type
|
|
fn resolveDerefType(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
deref: TypeWithHandle,
|
|
bound_type_params: *BoundTypeParams,
|
|
) !?TypeWithHandle {
|
|
const deref_node = switch (deref.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
const tree = deref.handle.tree;
|
|
const main_token = tree.nodes.items(.main_token)[deref_node];
|
|
const token_tag = tree.tokens.items(.tag)[main_token];
|
|
|
|
if (isPtrType(tree, deref_node)) {
|
|
switch (token_tag) {
|
|
.asterisk => {
|
|
return ((try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = tree.nodes.items(.data)[deref_node].rhs,
|
|
.handle = deref.handle,
|
|
}, bound_type_params)) orelse return null).instanceTypeVal();
|
|
},
|
|
.l_bracket, .asterisk_asterisk => return null,
|
|
else => unreachable,
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/// Resolves bracket access type (both slicing and array access)
|
|
fn resolveBracketAccessType(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
lhs: TypeWithHandle,
|
|
rhs: enum { Single, Range },
|
|
bound_type_params: *BoundTypeParams,
|
|
) !?TypeWithHandle {
|
|
const lhs_node = switch (lhs.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
|
|
const tree = lhs.handle.tree;
|
|
const tags = tree.nodes.items(.tag);
|
|
const tag = tags[lhs_node];
|
|
const data = tree.nodes.items(.data)[lhs_node];
|
|
if (tag == .array_type or tag == .array_type_sentinel) {
|
|
if (rhs == .Single)
|
|
return ((try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = data.rhs,
|
|
.handle = lhs.handle,
|
|
}, bound_type_params)) orelse return null).instanceTypeVal();
|
|
return TypeWithHandle{
|
|
.type = .{ .data = .{ .slice = data.rhs }, .is_type_val = false },
|
|
.handle = lhs.handle,
|
|
};
|
|
} else if (isPtrType(tree, lhs_node)) {
|
|
if (tags[data.rhs] == .array_type or tags[data.rhs] == .array_type_sentinel) {
|
|
if (rhs == .Single) {
|
|
return ((try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = tree.nodes.items(.data)[data.rhs].rhs,
|
|
.handle = lhs.handle,
|
|
}, bound_type_params)) orelse return null).instanceTypeVal();
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// Called to remove one level of pointerness before a field access
|
|
pub fn resolveFieldAccessLhsType(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
lhs: TypeWithHandle,
|
|
bound_type_params: *BoundTypeParams,
|
|
) !TypeWithHandle {
|
|
return (try resolveDerefType(store, arena, lhs, bound_type_params)) orelse lhs;
|
|
}
|
|
|
|
pub const BoundTypeParams = std.AutoHashMap(*const ast.full.FnProto.Param, TypeWithHandle);
|
|
|
|
fn allDigits(str: []const u8) bool {
|
|
for (str) |c| {
|
|
if (!std.ascii.isDigit(c)) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
pub fn isTypeIdent(tree: ast.Tree, token_idx: ast.TokenIndex) bool {
|
|
const PrimitiveTypes = std.ComptimeStringMap(void, .{
|
|
.{"isize"}, .{"usize"},
|
|
.{"c_short"}, .{"c_ushort"},
|
|
.{"c_int"}, .{"c_uint"},
|
|
.{"c_long"}, .{"c_ulong"},
|
|
.{"c_longlong"}, .{"c_ulonglong"},
|
|
.{"c_longdouble"}, .{"c_void"},
|
|
.{"f16"}, .{"f32"},
|
|
.{"f64"}, .{"f128"},
|
|
.{"bool"}, .{"void"},
|
|
.{"noreturn"}, .{"type"},
|
|
.{"anyerror"}, .{"comptime_int"},
|
|
.{"comptime_float"}, .{"anyframe"},
|
|
});
|
|
|
|
const text = tree.tokenSlice(token_idx);
|
|
if (PrimitiveTypes.has(text)) return true;
|
|
if (text.len > 1 and (text[0] == 'u' or text[0] == 'i') and allDigits(text[1..]))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Resolves the type of a node
|
|
pub fn resolveTypeOfNodeInternal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
node_handle: NodeWithHandle,
|
|
bound_type_params: *BoundTypeParams,
|
|
) error{OutOfMemory}!?TypeWithHandle {
|
|
const node = node_handle.node;
|
|
const handle = node_handle.handle;
|
|
const tree = handle.tree;
|
|
|
|
const main_tokens = tree.nodes.items(.main_token);
|
|
const node_tags = tree.nodes.items(.tag);
|
|
const datas = tree.nodes.items(.data);
|
|
const token_tags = tree.tokens.items(.tag);
|
|
const starts = tree.tokens.items(.start);
|
|
|
|
switch (node_tags[node]) {
|
|
.global_var_decl, .local_var_decl, .simple_var_decl, .aligned_var_decl => {
|
|
const var_decl = varDecl(tree, node).?;
|
|
if (var_decl.ast.type_node != 0) block: {
|
|
return ((try resolveTypeOfNodeInternal(
|
|
store,
|
|
arena,
|
|
.{ .node = var_decl.ast.type_node, .handle = handle },
|
|
bound_type_params,
|
|
)) orelse break :block).instanceTypeVal();
|
|
}
|
|
return if (var_decl.ast.init_node != 0)
|
|
try resolveTypeOfNodeInternal(store, arena, .{ .node = var_decl.ast.init_node, .handle = handle }, bound_type_params)
|
|
else
|
|
null;
|
|
},
|
|
.identifier => {
|
|
if (isTypeIdent(handle.tree, tree.firstToken(node))) {
|
|
return TypeWithHandle{
|
|
.type = .{ .data = .primitive, .is_type_val = true },
|
|
.handle = handle,
|
|
};
|
|
}
|
|
|
|
if (try lookupSymbolGlobal(store, arena, handle, handle.tree.getNodeSource(node), starts[tree.firstToken(node)])) |child| {
|
|
switch (child.decl.*) {
|
|
.ast_node => |n| {
|
|
if (n == node) return null;
|
|
if (varDecl(tree, n)) |var_decl| {
|
|
if (var_decl.ast.init_node == node) return null;
|
|
}
|
|
},
|
|
else => {},
|
|
}
|
|
return try child.resolveType(store, arena, bound_type_params);
|
|
}
|
|
return null;
|
|
},
|
|
.container_field, .container_field_init, .container_field_align => |c| {
|
|
const field: ast.full.ContainerField = switch (c) {
|
|
.container_field => tree.containerField(node),
|
|
.container_field_align => tree.containerFieldAlign(node),
|
|
.container_field_init => tree.containerFieldInit(node),
|
|
else => unreachable,
|
|
};
|
|
|
|
if (field.ast.type_expr == 0) return null;
|
|
return ((try resolveTypeOfNodeInternal(
|
|
store,
|
|
arena,
|
|
.{ .node = field.ast.type_expr, .handle = handle },
|
|
bound_type_params,
|
|
)) orelse return null).instanceTypeVal();
|
|
},
|
|
.call,
|
|
.call_comma,
|
|
.async_call,
|
|
.async_call_comma,
|
|
.call_one,
|
|
.call_one_comma,
|
|
.async_call_one,
|
|
.async_call_one_comma,
|
|
=> |c| {
|
|
var params: [1]ast.Node.Index = undefined;
|
|
const call: ast.full.Call = switch (c) {
|
|
.call, .call_comma, .async_call, .async_call_comma => tree.callFull(node),
|
|
.call_one, .call_one_comma, .async_call_one, .async_call_one_comma => tree.callOne(¶ms, node),
|
|
else => unreachable,
|
|
};
|
|
|
|
const decl = (try resolveTypeOfNodeInternal(
|
|
store,
|
|
arena,
|
|
.{ .node = call.ast.fn_expr, .handle = handle },
|
|
bound_type_params,
|
|
)) orelse return null;
|
|
|
|
if (decl.type.is_type_val) return null;
|
|
const decl_node = switch (decl.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
const func_maybe = fnProto(tree, decl_node, &buf);
|
|
|
|
if (func_maybe) |fn_decl| {
|
|
// check for x.y(..). if '.' is found, it means first param should be skipped
|
|
const has_self_param = token_tags[call.ast.lparen - 2] == .period;
|
|
var it = fn_decl.iterate(tree);
|
|
|
|
// Bind type params to the expressions passed in the calls.
|
|
const param_len = std.math.min(call.ast.params.len + @boolToInt(has_self_param), fn_decl.ast.params.len);
|
|
while (it.next()) |decl_param| {
|
|
if (it.param_i == 0 and has_self_param) continue;
|
|
if (it.param_i >= param_len) break;
|
|
if (!typeIsType(tree, decl_param.type_expr)) continue;
|
|
|
|
const call_param_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = call.ast.params[it.param_i - @boolToInt(has_self_param)],
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse continue;
|
|
if (!call_param_type.type.is_type_val) continue;
|
|
|
|
_ = try bound_type_params.put(&decl_param, call_param_type);
|
|
}
|
|
|
|
return try resolveReturnType(store, arena, fn_decl, decl.handle, bound_type_params);
|
|
}
|
|
return null;
|
|
},
|
|
.@"comptime", .@"nosuspend" => {
|
|
return try resolveTypeOfNodeInternal(store, arena, .{ .node = datas[node].lhs, .handle = handle }, bound_type_params);
|
|
},
|
|
.grouped_expression => {
|
|
return try resolveTypeOfNodeInternal(store, arena, .{ .node = datas[node].lhs, .handle = handle }, bound_type_params);
|
|
},
|
|
.struct_init, .struct_init_comma, .struct_init_one, .struct_init_one_comma => {
|
|
return ((try resolveTypeOfNodeInternal(
|
|
store,
|
|
arena,
|
|
.{ .node = datas[node].lhs, .handle = handle },
|
|
bound_type_params,
|
|
)) orelse return null).instanceTypeVal();
|
|
},
|
|
.error_set_decl => {
|
|
return TypeWithHandle.typeVal(node_handle);
|
|
},
|
|
.slice, .slice_sentinel, .slice_open => {
|
|
const left_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
return try resolveBracketAccessType(store, arena, left_type, .Range, bound_type_params);
|
|
},
|
|
.deref, .unwrap_optional => {
|
|
const left_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
return switch (node_tags[node]) {
|
|
.unwrap_optional => try resolveUnwrapOptionalType(store, arena, left_type, bound_type_params),
|
|
.deref => try resolveDerefType(store, arena, left_type, bound_type_params),
|
|
else => unreachable,
|
|
};
|
|
},
|
|
.array_access => {
|
|
const left_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
return try resolveBracketAccessType(store, arena, left_type, .Single, bound_type_params);
|
|
},
|
|
.field_access => {
|
|
const rhs_str = nodeToString(handle.tree, datas[node].rhs) orelse return null;
|
|
// If we are accessing a pointer type, remove one pointerness level :)
|
|
const left_type = try resolveFieldAccessLhsType(
|
|
store,
|
|
arena,
|
|
(try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null,
|
|
bound_type_params,
|
|
);
|
|
|
|
const left_type_node = switch (left_type.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
|
|
if (try lookupSymbolContainer(
|
|
store,
|
|
arena,
|
|
.{ .node = left_type_node, .handle = left_type.handle },
|
|
rhs_str,
|
|
!left_type.type.is_type_val,
|
|
)) |child| {
|
|
return try child.resolveType(store, arena, bound_type_params);
|
|
} else return null;
|
|
},
|
|
.@"orelse" => {
|
|
const left_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
return try resolveUnwrapOptionalType(store, arena, left_type, bound_type_params);
|
|
},
|
|
.@"catch" => {
|
|
const left_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
return try resolveUnwrapErrorType(store, arena, left_type, bound_type_params);
|
|
},
|
|
.error_union => return TypeWithHandle.typeVal(node_handle),
|
|
.array_type,
|
|
.array_type_sentinel,
|
|
.optional_type,
|
|
.ptr_type_aligned,
|
|
.ptr_type,
|
|
.ptr_type_bit_range,
|
|
=> return TypeWithHandle.typeVal(node_handle),
|
|
.@"try" => {
|
|
const rhs_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
return try resolveUnwrapErrorType(store, arena, rhs_type, bound_type_params);
|
|
},
|
|
.address_of => {
|
|
const rhs_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = datas[node].lhs,
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
|
|
const rhs_node = switch (rhs_type.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
|
|
return TypeWithHandle{
|
|
.type = .{ .data = .{ .pointer = rhs_node }, .is_type_val = false },
|
|
.handle = rhs_type.handle,
|
|
};
|
|
},
|
|
.builtin_call, .builtin_call_comma, .builtin_call_two, .builtin_call_two_comma => {
|
|
const params = builtinCallParams(tree, node);
|
|
|
|
const call_name = tree.tokenSlice(main_tokens[node]);
|
|
if (std.mem.eql(u8, call_name, "@This")) {
|
|
if (params.len != 0) return null;
|
|
return innermostContainer(handle, starts[tree.firstToken(node)]);
|
|
}
|
|
|
|
const cast_map = std.ComptimeStringMap(void, .{
|
|
.{"@as"},
|
|
.{"@bitCast"},
|
|
.{"@fieldParentPtr"},
|
|
.{"@floatCast"},
|
|
.{"@floatToInt"},
|
|
.{"@intCast"},
|
|
.{"@intToEnum"},
|
|
.{"@intToFloat"},
|
|
.{"@intToPtr"},
|
|
.{"@truncate"},
|
|
.{"@ptrCast"},
|
|
});
|
|
if (cast_map.has(call_name)) {
|
|
if (params.len < 1) return null;
|
|
return ((try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = params[0],
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null).instanceTypeVal();
|
|
}
|
|
|
|
// Almost the same as the above, return a type value though.
|
|
// TODO Do peer type resolution, we just keep the first for now.
|
|
if (std.mem.eql(u8, call_name, "@TypeOf")) {
|
|
if (params.len < 1) return null;
|
|
var resolved_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = params[0],
|
|
.handle = handle,
|
|
}, bound_type_params)) orelse return null;
|
|
|
|
if (resolved_type.type.is_type_val) return null;
|
|
resolved_type.type.is_type_val = true;
|
|
return resolved_type;
|
|
}
|
|
|
|
if (!std.mem.eql(u8, call_name, "@import")) return null;
|
|
if (params.len < 1) return null;
|
|
|
|
const import_param = params[0];
|
|
if (node_tags[import_param] != .string_literal) return null;
|
|
|
|
const import_str = tree.tokenSlice(main_tokens[import_param]);
|
|
const new_handle = (store.resolveImport(handle, import_str[1 .. import_str.len - 1]) catch |err| {
|
|
log.debug("Error {} while processing import {s}", .{ err, import_str });
|
|
return null;
|
|
}) orelse return null;
|
|
|
|
// reference to node '0' which is root
|
|
return TypeWithHandle.typeVal(.{ .node = 0, .handle = new_handle });
|
|
},
|
|
.container_decl,
|
|
.container_decl_arg,
|
|
.container_decl_arg_trailing,
|
|
.container_decl_trailing,
|
|
.container_decl_two,
|
|
.container_decl_two_trailing,
|
|
=> {
|
|
return TypeWithHandle.typeVal(node_handle);
|
|
},
|
|
.fn_proto, .fn_proto_multi, .fn_proto_one, .fn_proto_simple => {
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
const fn_proto = fnProto(tree, node, &buf).?;
|
|
|
|
// This is a function type
|
|
if (fn_proto.name_token == null) {
|
|
return TypeWithHandle.typeVal(node_handle);
|
|
}
|
|
|
|
return TypeWithHandle{
|
|
.type = .{ .data = .{ .other = node }, .is_type_val = false },
|
|
.handle = handle,
|
|
};
|
|
},
|
|
.multiline_string_literal, .string_literal => return TypeWithHandle{
|
|
.type = .{ .data = .{ .other = node }, .is_type_val = false },
|
|
.handle = handle,
|
|
},
|
|
else => {},
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// TODO Reorganize this file, perhaps split into a couple as well
|
|
// TODO Make this better, nested levels of type vals
|
|
pub const Type = struct {
|
|
data: union(enum) {
|
|
pointer: ast.Node.Index,
|
|
slice: ast.Node.Index,
|
|
error_union: ast.Node.Index,
|
|
other: ast.Node.Index,
|
|
primitive,
|
|
},
|
|
/// If true, the type `type`, the attached data is the value of the type value.
|
|
is_type_val: bool,
|
|
};
|
|
|
|
pub const TypeWithHandle = struct {
|
|
type: Type,
|
|
handle: *DocumentStore.Handle,
|
|
|
|
pub fn typeVal(node_handle: NodeWithHandle) TypeWithHandle {
|
|
return .{
|
|
.type = .{
|
|
.data = .{ .other = node_handle.node },
|
|
.is_type_val = true,
|
|
},
|
|
.handle = node_handle.handle,
|
|
};
|
|
}
|
|
|
|
fn instanceTypeVal(self: TypeWithHandle) ?TypeWithHandle {
|
|
if (!self.type.is_type_val) return null;
|
|
return TypeWithHandle{
|
|
.type = .{ .data = self.type.data, .is_type_val = false },
|
|
.handle = self.handle,
|
|
};
|
|
}
|
|
|
|
fn isRoot(self: TypeWithHandle) bool {
|
|
switch (self.type.data) {
|
|
// root is always index 0
|
|
.other => |n| return n == 0,
|
|
else => return false,
|
|
}
|
|
}
|
|
|
|
fn isContainer(self: TypeWithHandle, container_kind_tok: std.zig.Token.Tag, tree: ast.Tree) bool {
|
|
const main_tokens = tree.nodes.items(.main_token);
|
|
const tags = tree.tokens.items(.tag);
|
|
switch (self.type.data) {
|
|
.other => |n| return tags[main_tokens[n]] == container_kind_tok,
|
|
else => return false,
|
|
}
|
|
}
|
|
|
|
pub fn isStructType(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
return self.isContainer(.keyword_struct, tree) or self.isRoot();
|
|
}
|
|
|
|
pub fn isNamespace(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
if (!self.isStructType()) return false;
|
|
var idx: usize = 0;
|
|
while (self.type.data.other.iterate(idx)) |child| : (idx += 1) {
|
|
if (child.tag == .ContainerField)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
pub fn isEnumType(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
return self.isContainer(.keyword_enum, tree);
|
|
}
|
|
|
|
pub fn isUnionType(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
return self.isContainer(.keyword_union, tree);
|
|
}
|
|
|
|
pub fn isOpaqueType(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
return self.isContainer(.keyword_opaque, tree);
|
|
}
|
|
|
|
pub fn isTypeFunc(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
switch (self.type.data) {
|
|
.other => |n| return switch (tree.nodes.items(.tag)[n]) {
|
|
.fn_proto,
|
|
.fn_proto_multi,
|
|
.fn_proto_one,
|
|
.fn_proto_simple,
|
|
=> isTypeFunction(fnProto(tree, n, &buf).?),
|
|
else => false,
|
|
},
|
|
else => return false,
|
|
}
|
|
}
|
|
|
|
pub fn isGenericFunc(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
switch (self.type.data) {
|
|
.other => |n| return switch (tree.nodes.items(.tag)[n]) {
|
|
.fn_proto,
|
|
.fn_proto_multi,
|
|
.fn_proto_one,
|
|
.fn_proto_simple,
|
|
=> isGenericFunction(fnProto(tree, n, &buf).?),
|
|
else => false,
|
|
},
|
|
else => return false,
|
|
}
|
|
}
|
|
|
|
pub fn isFunc(self: TypeWithHandle, tree: ast.Tree) bool {
|
|
const tags = tree.nodes.items(.tag);
|
|
switch (self.type.data) {
|
|
.other => |n| return switch (tags[n]) {
|
|
.fn_proto,
|
|
.fn_proto_multi,
|
|
.fn_proto_one,
|
|
.fn_proto_simple,
|
|
=> true,
|
|
else => false,
|
|
},
|
|
else => return false,
|
|
}
|
|
}
|
|
};
|
|
|
|
pub fn resolveTypeOfNode(store: *DocumentStore, arena: *std.heap.ArenaAllocator, node_handle: NodeWithHandle) error{OutOfMemory}!?TypeWithHandle {
|
|
var bound_type_params = BoundTypeParams.init(&arena.allocator);
|
|
return resolveTypeOfNodeInternal(store, arena, node_handle, &bound_type_params);
|
|
}
|
|
|
|
fn maybeCollectImport(tree: ast.Tree, builtin_call: ast.Node.Index, arr: *std.ArrayList([]const u8)) !void {
|
|
const tags = tree.nodes.items(.tag);
|
|
const datas = tree.nodes.items(.data);
|
|
|
|
const builtin_tag = tags[builtin_call];
|
|
const builtin_data = datas[builtin_call];
|
|
|
|
std.debug.assert(builtin_tag == .builtin_call);
|
|
if (!std.mem.eql(u8, tree.tokenSlice(builtin_call), "@import")) return;
|
|
const params = tree.extra_data[builtin_data.lhs..builtin_data.rhs];
|
|
if (params.len > 1) return;
|
|
|
|
if (tags[params[0]] != .string_literal) return;
|
|
|
|
const import_str = tree.tokenSlice(params[0]);
|
|
try arr.append(import_str[1 .. import_str.len - 1]);
|
|
}
|
|
|
|
/// Collects all imports we can find into a slice of import paths (without quotes).
|
|
/// The import paths are valid as long as the tree is.
|
|
pub fn collectImports(import_arr: *std.ArrayList([]const u8), tree: ast.Tree) !void {
|
|
// TODO: Currently only detects `const smth = @import("string literal")<.SomeThing>;`
|
|
const tags = tree.nodes.items(.tag);
|
|
for (tree.rootDecls()) |decl_idx| {
|
|
const var_decl_maybe: ?ast.full.VarDecl = switch (tags[decl_idx]) {
|
|
.global_var_decl => tree.globalVarDecl(decl_idx),
|
|
.local_var_decl => tree.localVarDecl(decl_idx),
|
|
.simple_var_decl => tree.simpleVarDecl(decl_idx),
|
|
else => null,
|
|
};
|
|
const var_decl = var_decl_maybe orelse continue;
|
|
|
|
const init_node = var_decl.ast.init_node;
|
|
const init_node_tag = tags[init_node];
|
|
switch (init_node_tag) {
|
|
.builtin_call => try maybeCollectImport(tree, init_node, import_arr),
|
|
.field_access => {
|
|
const lhs = tree.nodes.items(.data)[init_node].lhs;
|
|
if (isBuiltinCall(tree, lhs)) {
|
|
try maybeCollectImport(tree, lhs, import_arr);
|
|
}
|
|
},
|
|
else => {},
|
|
}
|
|
}
|
|
}
|
|
|
|
pub const NodeWithHandle = struct {
|
|
node: ast.Node.Index,
|
|
handle: *DocumentStore.Handle,
|
|
};
|
|
|
|
pub const FieldAccessReturn = struct {
|
|
original: TypeWithHandle,
|
|
unwrapped: ?TypeWithHandle = null,
|
|
};
|
|
|
|
pub fn getFieldAccessType(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
handle: *DocumentStore.Handle,
|
|
source_index: usize,
|
|
tokenizer: *std.zig.Tokenizer,
|
|
) !?FieldAccessReturn {
|
|
var current_type = TypeWithHandle.typeVal(.{
|
|
.node = undefined,
|
|
.handle = handle,
|
|
});
|
|
|
|
// TODO Actually bind params here when calling functions instead of just skipping args.
|
|
var bound_type_params = BoundTypeParams.init(&arena.allocator);
|
|
const tree = handle.tree;
|
|
|
|
while (true) {
|
|
const tok = tokenizer.next();
|
|
switch (tok.tag) {
|
|
.eof => return FieldAccessReturn{
|
|
.original = current_type,
|
|
.unwrapped = try resolveDerefType(store, arena, current_type, &bound_type_params),
|
|
},
|
|
.identifier => {
|
|
if (try lookupSymbolGlobal(store, arena, current_type.handle, tokenizer.buffer[tok.loc.start..tok.loc.end], source_index)) |child| {
|
|
current_type = (try child.resolveType(store, arena, &bound_type_params)) orelse return null;
|
|
} else return null;
|
|
},
|
|
.period => {
|
|
const after_period = tokenizer.next();
|
|
switch (after_period.tag) {
|
|
.eof => return FieldAccessReturn{
|
|
.original = current_type,
|
|
.unwrapped = try resolveDerefType(store, arena, current_type, &bound_type_params),
|
|
},
|
|
.identifier => {
|
|
if (after_period.loc.end == tokenizer.buffer.len) {
|
|
return FieldAccessReturn{
|
|
.original = current_type,
|
|
.unwrapped = try resolveDerefType(store, arena, current_type, &bound_type_params),
|
|
};
|
|
}
|
|
|
|
current_type = try resolveFieldAccessLhsType(store, arena, current_type, &bound_type_params);
|
|
const current_type_node = switch (current_type.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
|
|
if (try lookupSymbolContainer(
|
|
store,
|
|
arena,
|
|
.{ .node = current_type_node, .handle = current_type.handle },
|
|
tokenizer.buffer[after_period.loc.start..after_period.loc.end],
|
|
!current_type.type.is_type_val,
|
|
)) |child| {
|
|
current_type = (try child.resolveType(store, arena, &bound_type_params)) orelse return null;
|
|
} else return null;
|
|
},
|
|
.question_mark => {
|
|
current_type = (try resolveUnwrapOptionalType(store, arena, current_type, &bound_type_params)) orelse return null;
|
|
},
|
|
else => {
|
|
log.debug("Unrecognized token {} after period.", .{after_period.tag});
|
|
return null;
|
|
},
|
|
}
|
|
},
|
|
.period_asterisk => {
|
|
current_type = (try resolveDerefType(store, arena, current_type, &bound_type_params)) orelse return null;
|
|
},
|
|
.l_paren => {
|
|
const current_type_node = switch (current_type.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
|
|
// Can't call a function type, we need a function type instance.
|
|
if (current_type.type.is_type_val) return null;
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
if (fnProto(tree, current_type_node, &buf)) |func| {
|
|
if (try resolveReturnType(store, arena, func, current_type.handle, &bound_type_params)) |ret| {
|
|
current_type = ret;
|
|
// Skip to the right paren
|
|
var paren_count: usize = 1;
|
|
var next = tokenizer.next();
|
|
while (next.tag != .eof) : (next = tokenizer.next()) {
|
|
if (next.tag == .r_paren) {
|
|
paren_count -= 1;
|
|
if (paren_count == 0) break;
|
|
} else if (next.tag == .l_paren) {
|
|
paren_count += 1;
|
|
}
|
|
} else return null;
|
|
} else return null;
|
|
} else return null;
|
|
},
|
|
.l_bracket => {
|
|
var brack_count: usize = 1;
|
|
var next = tokenizer.next();
|
|
var is_range = false;
|
|
while (next.tag != .eof) : (next = tokenizer.next()) {
|
|
if (next.tag == .r_bracket) {
|
|
brack_count -= 1;
|
|
if (brack_count == 0) break;
|
|
} else if (next.tag == .l_bracket) {
|
|
brack_count += 1;
|
|
} else if (next.tag == .ellipsis2 and brack_count == 1) {
|
|
is_range = true;
|
|
}
|
|
} else return null;
|
|
|
|
current_type = (try resolveBracketAccessType(store, arena, current_type, if (is_range) .Range else .Single, &bound_type_params)) orelse return null;
|
|
},
|
|
else => {
|
|
log.debug("Unimplemented token: {}", .{tok.tag});
|
|
return null;
|
|
},
|
|
}
|
|
}
|
|
|
|
return FieldAccessReturn{
|
|
.original = current_type,
|
|
.unwrapped = try resolveDerefType(store, arena, current_type, &bound_type_params),
|
|
};
|
|
}
|
|
|
|
pub fn isNodePublic(tree: ast.Tree, node: ast.Node.Index) bool {
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.global_var_decl, .local_var_decl, .simple_var_decl, .aligned_var_decl => {
|
|
const var_decl = varDecl(tree, node).?;
|
|
return var_decl.visib_token != null;
|
|
},
|
|
.fn_proto => tree.fnProto(node).visib_token != null,
|
|
.fn_proto_one => tree.fnProtoOne(&buf, node).visib_token != null,
|
|
.fn_proto_simple => tree.fnProtoSimple(&buf, node).visib_token != null,
|
|
.fn_proto_multi => tree.fnProtoMulti(node).visib_token != null,
|
|
else => true,
|
|
};
|
|
}
|
|
|
|
pub fn nodeToString(tree: ast.Tree, node: ast.Node.Index) ?[]const u8 {
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
switch (tree.nodes.items(.tag)[node]) {
|
|
.container_field => return tree.tokenSlice(tree.containerField(node).ast.name_token),
|
|
.container_field_init => return tree.tokenSlice(tree.containerFieldInit(node).ast.name_token),
|
|
.container_field_align => return tree.tokenSlice(tree.containerFieldAlign(node).ast.name_token),
|
|
// @TODO: Error tag name
|
|
// .ErrorTag => {
|
|
// const tag = node.castTag(.ErrorTag).?;
|
|
// return tree.tokenSlice(tag.name_token);
|
|
// },
|
|
.identifier => return tree.tokenSlice(node),
|
|
.fn_proto => if (tree.fnProto(node).name_token) |name| {
|
|
return tree.tokenSlice(name);
|
|
},
|
|
.fn_proto_one => if (tree.fnProtoOne(&buf, node).name_token) |name| {
|
|
return tree.tokenSlice(name);
|
|
},
|
|
.fn_proto_multi => if (tree.fnProtoMulti(node).name_token) |name| {
|
|
return tree.tokenSlice(name);
|
|
},
|
|
.fn_proto_simple => if (tree.fnProtoSimple(&buf, node).name_token) |name| {
|
|
return tree.tokenSlice(name);
|
|
},
|
|
else => {
|
|
log.debug("INVALID: {}", .{tree.nodes.items(.tag)[node]});
|
|
},
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
fn nodeContainsSourceIndex(tree: ast.Tree, node: ast.Node.Index, source_index: usize) bool {
|
|
const first_token = tree.tokenLocation(0, tree.firstToken(node)).line_start;
|
|
const last_token = tree.tokenLocation(@truncate(u32, first_token), tree.lastToken(node)).line_end;
|
|
return source_index >= first_token and source_index <= last_token;
|
|
}
|
|
|
|
fn isBuiltinCall(tree: ast.Tree, node: ast.Node.Index) bool {
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.builtin_call,
|
|
.builtin_call_comma,
|
|
.builtin_call_two,
|
|
.builtin_call_two_comma,
|
|
=> true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
pub fn builtinCallParams(tree: ast.Tree, node: ast.Node.Index) []const ast.Node.Index {
|
|
std.debug.assert(isBuiltinCall(tree, node));
|
|
const datas = tree.nodes.items(.data);
|
|
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.builtin_call, .builtin_call_comma => tree.extra_data[datas[node].lhs..datas[node].rhs],
|
|
.builtin_call_two, .builtin_call_two_comma => if (datas[node].lhs == 0)
|
|
&[_]ast.Node.Index{}
|
|
else if (datas[node].rhs == 0)
|
|
&[_]ast.Node.Index{datas[node].lhs}
|
|
else
|
|
&[_]ast.Node.Index{ datas[node].lhs, datas[node].rhs },
|
|
else => unreachable,
|
|
};
|
|
}
|
|
|
|
pub fn fnProto(tree: ast.Tree, node: ast.Node.Index, buf: *[1]ast.Node.Index) ?ast.full.FnProto {
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.fn_proto => tree.fnProto(node),
|
|
.fn_proto_multi => tree.fnProtoMulti(node),
|
|
.fn_proto_one => tree.fnProtoOne(buf, node),
|
|
.fn_proto_simple => tree.fnProtoSimple(buf, node),
|
|
// .fn_decl => tree.fnProto(tree.nodes.items(.data)[node].lhs),
|
|
else => null,
|
|
};
|
|
}
|
|
|
|
pub fn getImportStr(tree: ast.Tree, node: ast.Node.Index, source_index: usize) ?[]const u8 {
|
|
const node_tags = tree.nodes.items(.tag);
|
|
var buf: [2]ast.Node.Index = undefined;
|
|
const decls = switch (node_tags[node]) {
|
|
.root => tree.rootDecls(),
|
|
.container_decl, .container_decl_trailing => tree.containerDecl(node).ast.members,
|
|
.container_decl_arg, .container_decl_arg_trailing => tree.containerDeclArg(node).ast.members,
|
|
.container_decl_two, .container_decl_two_trailing => tree.containerDeclTwo(&buf, node).ast.members,
|
|
else => return null,
|
|
};
|
|
|
|
for (decls) |decl_idx| {
|
|
if (!nodeContainsSourceIndex(tree, decl_idx, source_index)) {
|
|
continue;
|
|
}
|
|
|
|
if (isBuiltinCall(tree, decl_idx)) {
|
|
const builtin_token = tree.nodes.items(.main_token)[decl_idx];
|
|
const call_name = tree.tokenSlice(builtin_token);
|
|
|
|
if (!std.mem.eql(u8, call_name, "@import")) continue;
|
|
const params = builtinCallParams(tree, decl_idx);
|
|
if (params.len != 1) continue;
|
|
|
|
const import_str = tree.tokenSlice(tree.firstToken(params[0]));
|
|
return import_str[1 .. import_str.len - 1];
|
|
}
|
|
|
|
if (getImportStr(tree, decl_idx, source_index)) |name| {
|
|
return name;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
pub const SourceRange = std.zig.Token.Loc;
|
|
|
|
pub const PositionContext = union(enum) {
|
|
builtin: SourceRange,
|
|
comment,
|
|
string_literal: SourceRange,
|
|
field_access: SourceRange,
|
|
var_access: SourceRange,
|
|
global_error_set,
|
|
enum_literal,
|
|
pre_label,
|
|
label: bool,
|
|
other,
|
|
empty,
|
|
|
|
pub fn range(self: PositionContext) ?SourceRange {
|
|
return switch (self) {
|
|
.builtin => |r| r,
|
|
.comment => null,
|
|
.string_literal => |r| r,
|
|
.field_access => |r| r,
|
|
.var_access => |r| r,
|
|
.enum_literal => null,
|
|
.pre_label => null,
|
|
.label => null,
|
|
.other => null,
|
|
.empty => null,
|
|
.global_error_set => null,
|
|
};
|
|
}
|
|
};
|
|
|
|
const StackState = struct {
|
|
ctx: PositionContext,
|
|
stack_id: enum { Paren, Bracket, Global },
|
|
};
|
|
|
|
fn peek(arr: *std.ArrayList(StackState)) !*StackState {
|
|
if (arr.items.len == 0) {
|
|
try arr.append(.{ .ctx = .empty, .stack_id = .Global });
|
|
}
|
|
return &arr.items[arr.items.len - 1];
|
|
}
|
|
|
|
fn tokenRangeAppend(prev: SourceRange, token: std.zig.Token) SourceRange {
|
|
return .{
|
|
.start = prev.start,
|
|
.end = token.loc.end,
|
|
};
|
|
}
|
|
|
|
const DocumentPosition = @import("offsets.zig").DocumentPosition;
|
|
|
|
pub fn documentPositionContext(arena: *std.heap.ArenaAllocator, document: types.TextDocument, doc_position: DocumentPosition) !PositionContext {
|
|
const line = doc_position.line;
|
|
var tokenizer = std.zig.Tokenizer.init(line[0..doc_position.line_index]);
|
|
var stack = try std.ArrayList(StackState).initCapacity(&arena.allocator, 8);
|
|
|
|
while (true) {
|
|
const tok = tokenizer.next();
|
|
// Early exits.
|
|
switch (tok.tag) {
|
|
.invalid, .invalid_ampersands => {
|
|
// Single '@' do not return a builtin token so we check this on our own.
|
|
if (line[doc_position.line_index - 1] == '@') {
|
|
return PositionContext{
|
|
.builtin = .{
|
|
.start = doc_position.line_index - 1,
|
|
.end = doc_position.line_index,
|
|
},
|
|
};
|
|
}
|
|
return .other;
|
|
},
|
|
.doc_comment, .container_doc_comment => return .comment,
|
|
.eof => break,
|
|
else => {},
|
|
}
|
|
|
|
// State changes
|
|
var curr_ctx = try peek(&stack);
|
|
switch (tok.tag) {
|
|
.string_literal, .multiline_string_literal_line => curr_ctx.ctx = .{ .string_literal = tok.loc },
|
|
.identifier => switch (curr_ctx.ctx) {
|
|
.empty, .pre_label => curr_ctx.ctx = .{ .var_access = tok.loc },
|
|
.label => |filled| if (!filled) {
|
|
curr_ctx.ctx = .{ .label = true };
|
|
} else {
|
|
curr_ctx.ctx = .{ .var_access = tok.loc };
|
|
},
|
|
else => {},
|
|
},
|
|
.builtin => switch (curr_ctx.ctx) {
|
|
.empty, .pre_label => curr_ctx.ctx = .{ .builtin = tok.loc },
|
|
else => {},
|
|
},
|
|
.period, .period_asterisk => switch (curr_ctx.ctx) {
|
|
.empty, .pre_label => curr_ctx.ctx = .enum_literal,
|
|
.enum_literal => curr_ctx.ctx = .empty,
|
|
.field_access => {},
|
|
.other => {},
|
|
.global_error_set => {},
|
|
else => curr_ctx.ctx = .{
|
|
.field_access = tokenRangeAppend(curr_ctx.ctx.range().?, tok),
|
|
},
|
|
},
|
|
.keyword_break, .keyword_continue => curr_ctx.ctx = .pre_label,
|
|
.colon => if (curr_ctx.ctx == .pre_label) {
|
|
curr_ctx.ctx = .{ .label = false };
|
|
} else {
|
|
curr_ctx.ctx = .empty;
|
|
},
|
|
.question_mark => switch (curr_ctx.ctx) {
|
|
.field_access => {},
|
|
else => curr_ctx.ctx = .empty,
|
|
},
|
|
.l_paren => try stack.append(.{ .ctx = .empty, .stack_id = .Paren }),
|
|
.l_bracket => try stack.append(.{ .ctx = .empty, .stack_id = .Bracket }),
|
|
.r_paren => {
|
|
_ = stack.pop();
|
|
if (curr_ctx.stack_id != .Paren) {
|
|
(try peek(&stack)).ctx = .empty;
|
|
}
|
|
},
|
|
.r_bracket => {
|
|
_ = stack.pop();
|
|
if (curr_ctx.stack_id != .Bracket) {
|
|
(try peek(&stack)).ctx = .empty;
|
|
}
|
|
},
|
|
.keyword_error => curr_ctx.ctx = .global_error_set,
|
|
else => curr_ctx.ctx = .empty,
|
|
}
|
|
|
|
switch (curr_ctx.ctx) {
|
|
.field_access => |r| curr_ctx.ctx = .{
|
|
.field_access = tokenRangeAppend(r, tok),
|
|
},
|
|
else => {},
|
|
}
|
|
}
|
|
|
|
return block: {
|
|
if (stack.popOrNull()) |state| break :block state.ctx;
|
|
break :block .empty;
|
|
};
|
|
}
|
|
|
|
fn addOutlineNodes(allocator: *std.mem.Allocator, tree: ast.Tree, child: ast.Node.Index, context: *GetDocumentSymbolsContext) anyerror!void {
|
|
switch (tree.nodes.items(.tag)[child]) {
|
|
.string_literal,
|
|
.integer_literal,
|
|
.builtin_call,
|
|
.builtin_call_comma,
|
|
.builtin_call_two,
|
|
.builtin_call_two_comma,
|
|
.call,
|
|
.call_comma,
|
|
.call_one,
|
|
.call_one_comma,
|
|
.async_call,
|
|
.async_call_comma,
|
|
.async_call_one,
|
|
.async_call_one_comma,
|
|
.identifier,
|
|
.add,
|
|
.add_wrap,
|
|
.array_cat,
|
|
.array_mult,
|
|
.assign,
|
|
.assign_bit_and,
|
|
.assign_bit_or,
|
|
.assign_bit_shift_left,
|
|
.assign_bit_shift_right,
|
|
.assign_bit_xor,
|
|
.assign_div,
|
|
.assign_sub,
|
|
.assign_sub_wrap,
|
|
.assign_mod,
|
|
.assign_add,
|
|
.assign_add_wrap,
|
|
.assign_mul,
|
|
.assign_mul_wrap,
|
|
.bang_equal,
|
|
.bit_and,
|
|
.bit_or,
|
|
.bit_shift_left,
|
|
.bit_shift_right,
|
|
.bit_xor,
|
|
.bool_and,
|
|
.bool_or,
|
|
.div,
|
|
.equal_equal,
|
|
.error_union,
|
|
.greater_or_equal,
|
|
.greater_than,
|
|
.less_or_equal,
|
|
.less_than,
|
|
.merge_error_sets,
|
|
.mod,
|
|
.mul,
|
|
.mul_wrap,
|
|
.field_access,
|
|
.switch_range,
|
|
.sub,
|
|
.sub_wrap,
|
|
.@"orelse",
|
|
.address_of,
|
|
.@"await",
|
|
.bit_not,
|
|
.bool_not,
|
|
.optional_type,
|
|
.negation,
|
|
.negation_wrap,
|
|
.@"resume",
|
|
.@"try",
|
|
.array_type,
|
|
.array_type_sentinel,
|
|
.ptr_type,
|
|
.ptr_type_aligned,
|
|
.ptr_type_bit_range,
|
|
.ptr_type_sentinel,
|
|
.slice_open,
|
|
.slice_sentinel,
|
|
.deref,
|
|
.unwrap_optional,
|
|
.array_access,
|
|
.@"return",
|
|
.@"break",
|
|
.@"continue",
|
|
.array_init,
|
|
.array_init_comma,
|
|
.array_init_dot,
|
|
.array_init_dot_comma,
|
|
.array_init_dot_two,
|
|
.array_init_dot_two_comma,
|
|
.array_init_one,
|
|
.array_init_one_comma,
|
|
.@"switch",
|
|
.switch_comma,
|
|
.switch_case,
|
|
.switch_case_one,
|
|
.@"for",
|
|
.for_simple,
|
|
.enum_literal,
|
|
.struct_init,
|
|
.struct_init_comma,
|
|
.struct_init_dot,
|
|
.struct_init_dot_comma,
|
|
.struct_init_dot_two,
|
|
.struct_init_dot_two_comma,
|
|
.struct_init_one,
|
|
.struct_init_one_comma,
|
|
.@"while",
|
|
.while_simple,
|
|
.while_cont,
|
|
.true_literal,
|
|
.false_literal,
|
|
.null_literal,
|
|
.@"defer",
|
|
.@"if",
|
|
.if_simple,
|
|
.multiline_string_literal,
|
|
.undefined_literal,
|
|
.@"anytype",
|
|
.block,
|
|
.block_semicolon,
|
|
.block_two,
|
|
.block_two_semicolon,
|
|
.error_set_decl,
|
|
=> return,
|
|
.container_decl,
|
|
.container_decl_arg,
|
|
.container_decl_arg_trailing,
|
|
.container_decl_two,
|
|
.container_decl_two_trailing,
|
|
.tagged_union,
|
|
.tagged_union_trailing,
|
|
.tagged_union_enum_tag,
|
|
.tagged_union_enum_tag_trailing,
|
|
.tagged_union_two,
|
|
.tagged_union_two_trailing,
|
|
=> {
|
|
var buf: [2]ast.Node.Index = undefined;
|
|
for (declMembers(tree, tree.nodes.items(.tag)[child], child, &buf)) |member|
|
|
try addOutlineNodes(allocator, tree, member, context);
|
|
return;
|
|
},
|
|
else => |t| {},
|
|
}
|
|
try getDocumentSymbolsInternal(allocator, tree, child, context);
|
|
}
|
|
|
|
const GetDocumentSymbolsContext = struct {
|
|
prev_loc: offsets.TokenLocation = .{
|
|
.line = 0,
|
|
.column = 0,
|
|
.offset = 0,
|
|
},
|
|
symbols: *std.ArrayList(types.DocumentSymbol),
|
|
encoding: offsets.Encoding,
|
|
};
|
|
|
|
fn getDocumentSymbolsInternal(allocator: *std.mem.Allocator, tree: ast.Tree, node: ast.Node.Index, context: *GetDocumentSymbolsContext) anyerror!void {
|
|
const name = getDeclName(tree, node) orelse return;
|
|
if (name.len == 0)
|
|
return;
|
|
|
|
const start_loc = context.prev_loc.add(try offsets.tokenRelativeLocation(tree, context.prev_loc.offset, tree.firstToken(node), context.encoding));
|
|
const end_loc = start_loc.add(try offsets.tokenRelativeLocation(tree, start_loc.offset, tree.lastToken(node), context.encoding));
|
|
context.prev_loc = end_loc;
|
|
const range = types.Range{
|
|
.start = .{
|
|
.line = @intCast(i64, start_loc.line),
|
|
.character = @intCast(i64, start_loc.column),
|
|
},
|
|
.end = .{
|
|
.line = @intCast(i64, end_loc.line),
|
|
.character = @intCast(i64, end_loc.column),
|
|
},
|
|
};
|
|
|
|
const tags = tree.nodes.items(.tag);
|
|
log.debug("{s} - {s}", .{ name, tags[node] });
|
|
(try context.symbols.addOne()).* = .{
|
|
.name = name,
|
|
.kind = switch (tags[node]) {
|
|
.fn_proto,
|
|
.fn_proto_simple,
|
|
.fn_proto_multi,
|
|
.fn_proto_one,
|
|
.fn_decl,
|
|
=> .Function,
|
|
.local_var_decl,
|
|
.global_var_decl,
|
|
.aligned_var_decl,
|
|
.simple_var_decl,
|
|
=> .Variable,
|
|
.container_field,
|
|
.container_field_align,
|
|
.container_field_init,
|
|
.tagged_union_enum_tag,
|
|
.tagged_union_enum_tag_trailing,
|
|
.tagged_union,
|
|
.tagged_union_trailing,
|
|
.tagged_union_two,
|
|
.tagged_union_two_trailing,
|
|
=> .Field,
|
|
else => .Variable,
|
|
},
|
|
.range = range,
|
|
.selectionRange = range,
|
|
.detail = "",
|
|
.children = ch: {
|
|
var children = std.ArrayList(types.DocumentSymbol).init(allocator);
|
|
|
|
var child_context = GetDocumentSymbolsContext{
|
|
.prev_loc = start_loc,
|
|
.symbols = &children,
|
|
.encoding = context.encoding,
|
|
};
|
|
|
|
if (isContainer(tags[node])) {
|
|
var buf: [2]ast.Node.Index = undefined;
|
|
for (declMembers(tree, tags[node], node, &buf)) |child|
|
|
try addOutlineNodes(allocator, tree, child, &child_context);
|
|
}
|
|
|
|
if (varDecl(tree, node)) |var_decl| {
|
|
if (var_decl.ast.init_node != 0)
|
|
try addOutlineNodes(allocator, tree, var_decl.ast.init_node, &child_context);
|
|
}
|
|
break :ch children.items;
|
|
},
|
|
};
|
|
}
|
|
|
|
pub fn getDocumentSymbols(allocator: *std.mem.Allocator, tree: ast.Tree, encoding: offsets.Encoding) ![]types.DocumentSymbol {
|
|
var symbols = try std.ArrayList(types.DocumentSymbol).initCapacity(allocator, tree.rootDecls().len);
|
|
|
|
var context = GetDocumentSymbolsContext{
|
|
.symbols = &symbols,
|
|
.encoding = encoding,
|
|
};
|
|
|
|
for (tree.rootDecls()) |idx| {
|
|
try getDocumentSymbolsInternal(allocator, tree, idx, &context);
|
|
}
|
|
|
|
return symbols.items;
|
|
}
|
|
|
|
pub const Declaration = union(enum) {
|
|
/// Index of the ast node
|
|
ast_node: ast.Node.Index,
|
|
/// Function parameter
|
|
param_decl: ast.full.FnProto.Param,
|
|
pointer_payload: struct {
|
|
name: ast.TokenIndex,
|
|
condition: ast.Node.Index,
|
|
},
|
|
// array_payload: struct {
|
|
// identifier: *ast.Node,
|
|
// array_expr: ast.full.ArrayType,
|
|
// },
|
|
switch_payload: struct {
|
|
node: ast.TokenIndex,
|
|
switch_expr: ast.Node.Index,
|
|
items: []const ast.Node.Index,
|
|
},
|
|
label_decl: ast.TokenIndex, // .id is While, For or Block (firstToken will be the label)
|
|
};
|
|
|
|
pub const DeclWithHandle = struct {
|
|
decl: *Declaration,
|
|
handle: *DocumentStore.Handle,
|
|
|
|
pub fn nameToken(self: DeclWithHandle) ast.TokenIndex {
|
|
const tree = self.handle.tree;
|
|
const token_tags = tree.tokens.items(.tag);
|
|
return switch (self.decl.*) {
|
|
.ast_node => |n| getDeclNameToken(tree, n).?,
|
|
.param_decl => |p| p.name_token.?,
|
|
.pointer_payload => |pp| pp.name,
|
|
// .array_payload => |ap| ap.identifier.firstToken(),
|
|
.switch_payload => |sp| sp.node + @boolToInt(token_tags[sp.node] == .asterisk),
|
|
.label_decl => |ld| ld,
|
|
};
|
|
}
|
|
|
|
pub fn location(self: DeclWithHandle, encoding: offsets.Encoding) !offsets.TokenLocation {
|
|
const tree = self.handle.tree;
|
|
return try offsets.tokenRelativeLocation(tree, 0, self.nameToken(), encoding);
|
|
}
|
|
|
|
fn isPublic(self: DeclWithHandle) bool {
|
|
return switch (self.decl.*) {
|
|
.ast_node => |node| isNodePublic(self.handle.tree, node),
|
|
else => true,
|
|
};
|
|
}
|
|
|
|
pub fn resolveType(self: DeclWithHandle, store: *DocumentStore, arena: *std.heap.ArenaAllocator, bound_type_params: *BoundTypeParams) !?TypeWithHandle {
|
|
const tree = self.handle.tree;
|
|
const node_tags = tree.nodes.items(.tag);
|
|
const main_tokens = tree.nodes.items(.main_token);
|
|
return switch (self.decl.*) {
|
|
.ast_node => |node| try resolveTypeOfNodeInternal(store, arena, .{ .node = node, .handle = self.handle }, bound_type_params),
|
|
.param_decl => |*param_decl| {
|
|
if (typeIsType(self.handle.tree, param_decl.type_expr)) {
|
|
var bound_param_it = bound_type_params.iterator();
|
|
while (bound_param_it.next()) |entry| {
|
|
if (entry.key == param_decl) return entry.value;
|
|
}
|
|
return null;
|
|
} else if (node_tags[param_decl.type_expr] == .identifier) {
|
|
if (param_decl.name_token) |name_tok| {
|
|
if (std.mem.eql(u8, tree.tokenSlice(tree.firstToken(param_decl.type_expr)), tree.tokenSlice(name_tok)))
|
|
return null;
|
|
}
|
|
}
|
|
return ((try resolveTypeOfNodeInternal(
|
|
store,
|
|
arena,
|
|
.{ .node = param_decl.type_expr, .handle = self.handle },
|
|
bound_type_params,
|
|
)) orelse return null).instanceTypeVal();
|
|
},
|
|
.pointer_payload => |pay| try resolveUnwrapOptionalType(
|
|
store,
|
|
arena,
|
|
(try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = pay.condition,
|
|
.handle = self.handle,
|
|
}, bound_type_params)) orelse return null,
|
|
bound_type_params,
|
|
),
|
|
// .array_payload => |pay| try resolveBracketAccessType(
|
|
// store,
|
|
// arena,
|
|
// (try resolveTypeOfNodeInternal(store, arena, .{
|
|
// .node = pay.array_expr,
|
|
// .handle = self.handle,
|
|
// }, bound_type_params)) orelse return null,
|
|
// .Single,
|
|
// bound_type_params,
|
|
// ),
|
|
.label_decl => return null,
|
|
.switch_payload => |pay| {
|
|
if (pay.items.len == 0) return null;
|
|
// TODO Peer type resolution, we just use the first item for now.
|
|
const switch_expr_type = (try resolveTypeOfNodeInternal(store, arena, .{
|
|
.node = pay.switch_expr,
|
|
.handle = self.handle,
|
|
}, bound_type_params)) orelse return null;
|
|
if (!switch_expr_type.isUnionType(tree))
|
|
return null;
|
|
|
|
if (node_tags[pay.items[0]] == .enum_literal) {
|
|
const scope = findContainerScope(.{ .node = switch_expr_type.type.data.other, .handle = switch_expr_type.handle }) orelse return null;
|
|
if (scope.decls.getEntry(self.handle.tree.tokenSlice(main_tokens[pay.items[0]]))) |candidate| {
|
|
switch (candidate.value) {
|
|
.ast_node => |node| {
|
|
if (containerField(tree, node)) |container_field| {
|
|
if (container_field.ast.type_expr != 0) {
|
|
return ((try resolveTypeOfNodeInternal(
|
|
store,
|
|
arena,
|
|
.{ .node = container_field.ast.type_expr, .handle = switch_expr_type.handle },
|
|
bound_type_params,
|
|
)) orelse return null).instanceTypeVal();
|
|
}
|
|
}
|
|
},
|
|
else => {},
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
return null;
|
|
},
|
|
};
|
|
}
|
|
};
|
|
|
|
pub fn containerField(tree: ast.Tree, node: ast.Node.Index) ?ast.full.ContainerField {
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.container_field => tree.containerField(node),
|
|
.container_field_init => tree.containerFieldInit(node),
|
|
.container_field_align => tree.containerFieldAlign(node),
|
|
else => null,
|
|
};
|
|
}
|
|
|
|
pub fn ptrType(tree: ast.Tree, node: ast.Node.Index) ?ast.full.PtrType {
|
|
return switch (tree.nodes.items(.tag)[node]) {
|
|
.ptr_type => tree.ptrType(node),
|
|
.ptr_type_aligned => tree.ptrTypeAligned(node),
|
|
.ptr_type_bit_range => tree.ptrTypeBitRange(node),
|
|
.ptr_type_sentinel => tree.ptrTypeSentinel(node),
|
|
else => null,
|
|
};
|
|
}
|
|
|
|
fn findContainerScope(container_handle: NodeWithHandle) ?*Scope {
|
|
const container = container_handle.node;
|
|
const handle = container_handle.handle;
|
|
|
|
if (!isContainer(handle.tree.nodes.items(.tag)[container])) return null;
|
|
|
|
// Find the container scope.
|
|
var container_scope: ?*Scope = null;
|
|
return for (handle.document_scope.scopes) |*scope| {
|
|
switch (scope.*.data) {
|
|
.container => |node| if (node == container) {
|
|
break container_scope;
|
|
},
|
|
else => {},
|
|
}
|
|
} else null;
|
|
}
|
|
|
|
fn iterateSymbolsContainerInternal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
container_handle: NodeWithHandle,
|
|
orig_handle: *DocumentStore.Handle,
|
|
comptime callback: anytype,
|
|
context: anytype,
|
|
instance_access: bool,
|
|
use_trail: *std.ArrayList(ast.Node.Index),
|
|
) error{OutOfMemory}!void {
|
|
const container = container_handle.node;
|
|
const handle = container_handle.handle;
|
|
|
|
const tree = handle.tree;
|
|
const node_tags = tree.nodes.items(.tag);
|
|
const token_tags = tree.tokens.items(.tag);
|
|
const main_token = tree.nodes.items(.main_token)[container];
|
|
|
|
const is_enum = if (isContainer(node_tags[container]))
|
|
token_tags[main_token] == .keyword_enum
|
|
else
|
|
false;
|
|
|
|
if (findContainerScope(container_handle)) |container_scope| {
|
|
var decl_it = container_scope.decls.iterator();
|
|
while (decl_it.next()) |entry| {
|
|
switch (entry.value) {
|
|
.ast_node => |node| {
|
|
if (node_tags[node].isContainerField()) {
|
|
if (!instance_access and !is_enum) continue;
|
|
if (instance_access and is_enum) continue;
|
|
}
|
|
},
|
|
.label_decl => continue,
|
|
else => {},
|
|
}
|
|
const decl = DeclWithHandle{ .decl = &entry.value, .handle = handle };
|
|
if (handle != orig_handle and !decl.isPublic()) continue;
|
|
try callback(context, decl);
|
|
}
|
|
|
|
// for (container_scope.uses) |use| {
|
|
// if (handle != orig_handle and use.visib_token == null) continue;
|
|
// if (std.mem.indexOfScalar(*ast.Node.Use, use_trail.items, use) != null) continue;
|
|
// try use_trail.append(use);
|
|
|
|
// const use_expr = (try resolveTypeOfNode(store, arena, .{ .node = use.expr, .handle = handle })) orelse continue;
|
|
// const use_expr_node = switch (use_expr.type.data) {
|
|
// .other => |n| n,
|
|
// else => continue,
|
|
// };
|
|
// try iterateSymbolsContainerInternal(store, arena, .{ .node = use_expr_node, .handle = use_expr.handle }, orig_handle, callback, context, false, use_trail);
|
|
// }
|
|
}
|
|
}
|
|
|
|
pub fn iterateSymbolsContainer(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
container_handle: NodeWithHandle,
|
|
orig_handle: *DocumentStore.Handle,
|
|
comptime callback: anytype,
|
|
context: anytype,
|
|
instance_access: bool,
|
|
) error{OutOfMemory}!void {
|
|
var use_trail = std.ArrayList(ast.Node.Index).init(&arena.allocator);
|
|
return try iterateSymbolsContainerInternal(store, arena, container_handle, orig_handle, callback, context, instance_access, &use_trail);
|
|
}
|
|
|
|
pub fn iterateLabels(
|
|
handle: *DocumentStore.Handle,
|
|
source_index: usize,
|
|
comptime callback: anytype,
|
|
context: anytype,
|
|
) error{OutOfMemory}!void {
|
|
for (handle.document_scope.scopes) |scope| {
|
|
if (source_index >= scope.range.start and source_index < scope.range.end) {
|
|
var decl_it = scope.decls.iterator();
|
|
while (decl_it.next()) |entry| {
|
|
switch (entry.value) {
|
|
.label_decl => {},
|
|
else => continue,
|
|
}
|
|
try callback(context, DeclWithHandle{ .decl = &entry.value, .handle = handle });
|
|
}
|
|
}
|
|
if (scope.range.start >= source_index) return;
|
|
}
|
|
}
|
|
|
|
fn iterateSymbolsGlobalInternal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
handle: *DocumentStore.Handle,
|
|
source_index: usize,
|
|
comptime callback: anytype,
|
|
context: anytype,
|
|
use_trail: *std.ArrayList(ast.Node.Index),
|
|
) error{OutOfMemory}!void {
|
|
for (handle.document_scope.scopes) |scope| {
|
|
if (source_index >= scope.range.start and source_index < scope.range.end) {
|
|
var decl_it = scope.decls.iterator();
|
|
while (decl_it.next()) |entry| {
|
|
if (entry.value == .ast_node and handle.tree.nodes.items(.tag)[entry.value.ast_node].isContainerField()) continue;
|
|
if (entry.value == .label_decl) continue;
|
|
try callback(context, DeclWithHandle{ .decl = &entry.value, .handle = handle });
|
|
}
|
|
|
|
// for (scope.uses) |use| {
|
|
// if (std.mem.indexOfScalar(*ast.Node.Use, use_trail.items, use) != null) continue;
|
|
// try use_trail.append(use);
|
|
|
|
// const use_expr = (try resolveTypeOfNode(store, arena, .{ .node = use.expr, .handle = handle })) orelse continue;
|
|
// const use_expr_node = switch (use_expr.type.data) {
|
|
// .other => |n| n,
|
|
// else => continue,
|
|
// };
|
|
// try iterateSymbolsContainerInternal(store, arena, .{ .node = use_expr_node, .handle = use_expr.handle }, handle, callback, context, false, use_trail);
|
|
// }
|
|
}
|
|
|
|
if (scope.range.start >= source_index) return;
|
|
}
|
|
}
|
|
|
|
pub fn iterateSymbolsGlobal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
handle: *DocumentStore.Handle,
|
|
source_index: usize,
|
|
comptime callback: anytype,
|
|
context: anytype,
|
|
) error{OutOfMemory}!void {
|
|
var use_trail = std.ArrayList(ast.Node.Index).init(&arena.allocator);
|
|
return try iterateSymbolsGlobalInternal(store, arena, handle, source_index, callback, context, &use_trail);
|
|
}
|
|
|
|
pub fn innermostContainer(handle: *DocumentStore.Handle, source_index: usize) TypeWithHandle {
|
|
var current = handle.document_scope.scopes[0].data.container;
|
|
if (handle.document_scope.scopes.len == 1) return TypeWithHandle.typeVal(.{ .node = current, .handle = handle });
|
|
|
|
for (handle.document_scope.scopes[1..]) |scope| {
|
|
if (source_index >= scope.range.start and source_index < scope.range.end) {
|
|
switch (scope.data) {
|
|
.container => |node| current = node,
|
|
else => {},
|
|
}
|
|
}
|
|
if (scope.range.start > source_index) break;
|
|
}
|
|
return TypeWithHandle.typeVal(.{ .node = current, .handle = handle });
|
|
}
|
|
|
|
fn resolveUse(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
// uses: []const *ast.Node.Use,
|
|
symbol: []const u8,
|
|
handle: *DocumentStore.Handle,
|
|
use_trail: *std.ArrayList(*ast.Node.Use),
|
|
) error{OutOfMemory}!?DeclWithHandle {
|
|
// for (uses) |use| {
|
|
// if (std.mem.indexOfScalar(*ast.Node.Use, use_trail.items, use) != null) continue;
|
|
// try use_trail.append(use);
|
|
|
|
// const use_expr = (try resolveTypeOfNode(store, arena, .{ .node = use.expr, .handle = handle })) orelse continue;
|
|
// const use_expr_node = switch (use_expr.type.data) {
|
|
// .other => |n| n,
|
|
// else => continue,
|
|
// };
|
|
// if (try lookupSymbolContainerInternal(store, arena, .{ .node = use_expr_node, .handle = use_expr.handle }, symbol, false, use_trail)) |candidate| {
|
|
// if (candidate.handle != handle and !candidate.isPublic()) {
|
|
// continue;
|
|
// }
|
|
// return candidate;
|
|
// }
|
|
// }
|
|
return null;
|
|
}
|
|
|
|
pub fn lookupLabel(
|
|
handle: *DocumentStore.Handle,
|
|
symbol: []const u8,
|
|
source_index: usize,
|
|
) error{OutOfMemory}!?DeclWithHandle {
|
|
for (handle.document_scope.scopes) |scope| {
|
|
if (source_index >= scope.range.start and source_index < scope.range.end) {
|
|
if (scope.decls.getEntry(symbol)) |candidate| {
|
|
switch (candidate.value) {
|
|
.label_decl => {},
|
|
else => continue,
|
|
}
|
|
return DeclWithHandle{
|
|
.decl = &candidate.value,
|
|
.handle = handle,
|
|
};
|
|
}
|
|
}
|
|
if (scope.range.start > source_index) return null;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
fn lookupSymbolGlobalInternal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
handle: *DocumentStore.Handle,
|
|
symbol: []const u8,
|
|
source_index: usize,
|
|
use_trail: *std.ArrayList(ast.Node.Index),
|
|
) error{OutOfMemory}!?DeclWithHandle {
|
|
for (handle.document_scope.scopes) |scope, i| {
|
|
if (source_index >= scope.range.start and source_index < scope.range.end) {
|
|
if (scope.decls.getEntry(symbol)) |candidate| {
|
|
switch (candidate.value) {
|
|
.ast_node => |node| {
|
|
if (handle.tree.nodes.items(.tag)[node].isContainerField()) continue;
|
|
},
|
|
.label_decl => continue,
|
|
else => {},
|
|
}
|
|
return DeclWithHandle{
|
|
.decl = &candidate.value,
|
|
.handle = handle,
|
|
};
|
|
}
|
|
|
|
// if (try resolveUse(store, arena, scope.uses, symbol, handle, use_trail)) |result| return result;
|
|
}
|
|
|
|
if (scope.range.start > source_index) return null;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
pub fn lookupSymbolGlobal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
handle: *DocumentStore.Handle,
|
|
symbol: []const u8,
|
|
source_index: usize,
|
|
) error{OutOfMemory}!?DeclWithHandle {
|
|
var use_trail = std.ArrayList(ast.Node.Index).init(&arena.allocator);
|
|
return try lookupSymbolGlobalInternal(store, arena, handle, symbol, source_index, &use_trail);
|
|
}
|
|
|
|
fn lookupSymbolContainerInternal(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
container_handle: NodeWithHandle,
|
|
symbol: []const u8,
|
|
/// If true, we are looking up the symbol like we are accessing through a field access
|
|
/// of an instance of the type, otherwise as a field access of the type value itself.
|
|
instance_access: bool,
|
|
use_trail: *std.ArrayList(ast.Node.Index),
|
|
) error{OutOfMemory}!?DeclWithHandle {
|
|
const container = container_handle.node;
|
|
const handle = container_handle.handle;
|
|
const tree = handle.tree;
|
|
const node_tags = tree.nodes.items(.tag);
|
|
const token_tags = tree.tokens.items(.tag);
|
|
const main_token = tree.nodes.items(.main_token)[container];
|
|
|
|
const is_enum = if (isContainer(node_tags[container]))
|
|
token_tags[main_token] == .keyword_enum
|
|
else
|
|
false;
|
|
|
|
if (findContainerScope(container_handle)) |container_scope| {
|
|
if (container_scope.decls.getEntry(symbol)) |candidate| {
|
|
switch (candidate.value) {
|
|
.ast_node => |node| {
|
|
if (node_tags[node].isContainerField()) {
|
|
if (!instance_access and !is_enum) return null;
|
|
if (instance_access and is_enum) return null;
|
|
}
|
|
},
|
|
.label_decl => unreachable,
|
|
else => {},
|
|
}
|
|
return DeclWithHandle{ .decl = &candidate.value, .handle = handle };
|
|
}
|
|
|
|
// if (try resolveUse(store, arena, container_scope.uses, symbol, handle, use_trail)) |result| return result;
|
|
return null;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
pub fn lookupSymbolContainer(
|
|
store: *DocumentStore,
|
|
arena: *std.heap.ArenaAllocator,
|
|
container_handle: NodeWithHandle,
|
|
symbol: []const u8,
|
|
/// If true, we are looking up the symbol like we are accessing through a field access
|
|
/// of an instance of the type, otherwise as a field access of the type value itself.
|
|
instance_access: bool,
|
|
) error{OutOfMemory}!?DeclWithHandle {
|
|
var use_trail = std.ArrayList(ast.Node.Index).init(&arena.allocator);
|
|
return try lookupSymbolContainerInternal(store, arena, container_handle, symbol, instance_access, &use_trail);
|
|
}
|
|
|
|
pub const DocumentScope = struct {
|
|
scopes: []Scope,
|
|
error_completions: []types.CompletionItem,
|
|
enum_completions: []types.CompletionItem,
|
|
|
|
pub fn debugPrint(self: DocumentScope) void {
|
|
for (self.scopes) |scope| {
|
|
log.debug(
|
|
\\--------------------------
|
|
\\Scope {}, range: [{}, {})
|
|
\\ {} usingnamespaces
|
|
\\Decls:
|
|
, .{
|
|
scope.data,
|
|
scope.range.start,
|
|
scope.range.end,
|
|
{},
|
|
// scope.uses.len,
|
|
});
|
|
|
|
var decl_it = scope.decls.iterator();
|
|
var idx: usize = 0;
|
|
while (decl_it.next()) |name_decl| : (idx += 1) {
|
|
if (idx != 0) log.debug(", ", .{});
|
|
}
|
|
log.debug("{s}", .{name_decl.key});
|
|
log.debug("\n--------------------------\n", .{});
|
|
}
|
|
}
|
|
|
|
pub fn deinit(self: DocumentScope, allocator: *std.mem.Allocator) void {
|
|
for (self.scopes) |*scope| {
|
|
scope.decls.deinit();
|
|
// allocator.free(scope.uses);
|
|
allocator.free(scope.tests);
|
|
}
|
|
allocator.free(self.scopes);
|
|
for (self.error_completions) |item| if (item.documentation) |doc| allocator.free(doc.value);
|
|
allocator.free(self.error_completions);
|
|
for (self.enum_completions) |item| if (item.documentation) |doc| allocator.free(doc.value);
|
|
allocator.free(self.enum_completions);
|
|
}
|
|
};
|
|
|
|
pub const Scope = struct {
|
|
pub const Data = union(enum) {
|
|
container: ast.Node.Index, // .tag is ContainerDecl or Root or ErrorSetDecl
|
|
function: ast.Node.Index, // .tag is FnProto
|
|
block: ast.Node.Index, // .tag is Block
|
|
other,
|
|
};
|
|
|
|
range: SourceRange,
|
|
decls: std.StringHashMap(Declaration),
|
|
tests: []const ast.Node.Index,
|
|
// uses: []const *ast.Node.Data,
|
|
|
|
data: Data,
|
|
};
|
|
|
|
pub fn makeDocumentScope(allocator: *std.mem.Allocator, tree: ast.Tree) !DocumentScope {
|
|
var scopes = std.ArrayListUnmanaged(Scope){};
|
|
var error_completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
var enum_completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
|
|
errdefer {
|
|
scopes.deinit(allocator);
|
|
for (error_completions.items) |item| if (item.documentation) |doc| allocator.free(doc.value);
|
|
error_completions.deinit(allocator);
|
|
for (enum_completions.items) |item| if (item.documentation) |doc| allocator.free(doc.value);
|
|
enum_completions.deinit(allocator);
|
|
}
|
|
// pass root node index ('0')
|
|
try makeScopeInternal(allocator, &scopes, &error_completions, &enum_completions, tree, 0);
|
|
return DocumentScope{
|
|
.scopes = scopes.toOwnedSlice(allocator),
|
|
.error_completions = error_completions.toOwnedSlice(allocator),
|
|
.enum_completions = enum_completions.toOwnedSlice(allocator),
|
|
};
|
|
}
|
|
|
|
fn nodeSourceRange(tree: ast.Tree, node: ast.Node.Index) SourceRange {
|
|
const loc = tree.tokenLocation(0, tree.firstToken(node));
|
|
return SourceRange{
|
|
.start = loc.line_start,
|
|
.end = loc.line_end,
|
|
};
|
|
}
|
|
|
|
pub fn isContainer(tag: ast.Node.Tag) bool {
|
|
return switch (tag) {
|
|
.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,
|
|
.root,
|
|
.error_set_decl,
|
|
=> true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
/// Returns the member indices of a given declaration container.
|
|
/// Asserts given `tag` is a container node
|
|
pub fn declMembers(tree: ast.Tree, tag: ast.Node.Tag, node_idx: ast.Node.Index, buffer: *[2]ast.Node.Index) []const ast.Node.Index {
|
|
std.debug.assert(isContainer(tag));
|
|
return switch (tag) {
|
|
.container_decl, .container_decl_trailing => tree.containerDecl(node_idx).ast.members,
|
|
.container_decl_arg, .container_decl_arg_trailing => tree.containerDeclArg(node_idx).ast.members,
|
|
.container_decl_two, .container_decl_two_trailing => tree.containerDeclTwo(buffer, node_idx).ast.members,
|
|
.tagged_union, .tagged_union_trailing => tree.taggedUnion(node_idx).ast.members,
|
|
.tagged_union_enum_tag, .tagged_union_enum_tag_trailing => tree.taggedUnionEnumTag(node_idx).ast.members,
|
|
.tagged_union_two, .tagged_union_two_trailing => tree.taggedUnionTwo(buffer, node_idx).ast.members,
|
|
.root => tree.rootDecls(),
|
|
// @TODO: Fix error set declarations
|
|
.error_set_decl => &[_]ast.Node.Index{},
|
|
else => unreachable,
|
|
};
|
|
}
|
|
|
|
/// Returns an `ast.full.VarDecl` for a given node index.
|
|
/// Returns null if the tag doesn't match
|
|
pub fn varDecl(tree: ast.Tree, node_idx: ast.Node.Index) ?ast.full.VarDecl {
|
|
return switch (tree.nodes.items(.tag)[node_idx]) {
|
|
.global_var_decl => tree.globalVarDecl(node_idx),
|
|
.local_var_decl => tree.localVarDecl(node_idx),
|
|
.aligned_var_decl => tree.alignedVarDecl(node_idx),
|
|
.simple_var_decl => tree.simpleVarDecl(node_idx),
|
|
else => null,
|
|
};
|
|
}
|
|
|
|
// TODO Possibly collect all imports to diff them on changes
|
|
// as well
|
|
fn makeScopeInternal(
|
|
allocator: *std.mem.Allocator,
|
|
scopes: *std.ArrayListUnmanaged(Scope),
|
|
error_completions: *std.ArrayListUnmanaged(types.CompletionItem),
|
|
enum_completions: *std.ArrayListUnmanaged(types.CompletionItem),
|
|
tree: ast.Tree,
|
|
node_idx: ast.Node.Index,
|
|
) error{OutOfMemory}!void {
|
|
const tags = tree.nodes.items(.tag);
|
|
const token_tags = tree.tokens.items(.tag);
|
|
const data = tree.nodes.items(.data);
|
|
const main_tokens = tree.nodes.items(.main_token);
|
|
const node = tags[node_idx];
|
|
|
|
if (isContainer(node)) {
|
|
var buf: [2]ast.Node.Index = undefined;
|
|
const ast_decls = declMembers(tree, node, node_idx, &buf);
|
|
|
|
(try scopes.addOne(allocator)).* = .{
|
|
.range = nodeSourceRange(tree, node_idx),
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .{ .container = node_idx },
|
|
};
|
|
const scope_idx = scopes.items.len - 1;
|
|
// var uses = std.ArrayList(*ast.Node.Use).init(allocator);
|
|
var tests = std.ArrayList(ast.Node.Index).init(allocator);
|
|
|
|
errdefer {
|
|
scopes.items[scope_idx].decls.deinit();
|
|
// uses.deinit();
|
|
tests.deinit();
|
|
}
|
|
|
|
for (ast_decls) |decl| {
|
|
// @TODO: Implement using namespace
|
|
// if (decl.castTag(.Use)) |use| {
|
|
// try uses.append(use);
|
|
// continue;
|
|
// }
|
|
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, decl);
|
|
const name = getDeclName(tree, decl) orelse continue;
|
|
// @TODO: implement tests
|
|
// if (decl.tag == .TestDecl) {
|
|
// try tests.append(decl);
|
|
// continue;
|
|
// }
|
|
|
|
if (tags[decl] == .error_set_decl) {
|
|
(try error_completions.addOne(allocator)).* = .{
|
|
.label = name,
|
|
.kind = .Constant,
|
|
.documentation = if (try getDocComments(allocator, tree, decl, .Markdown)) |docs|
|
|
.{ .kind = .Markdown, .value = docs }
|
|
else
|
|
null,
|
|
};
|
|
}
|
|
|
|
const container_field: ?ast.full.ContainerField = switch (tags[decl]) {
|
|
.container_field => tree.containerField(decl),
|
|
.container_field_align => tree.containerFieldAlign(decl),
|
|
.container_field_init => tree.containerFieldInit(decl),
|
|
else => null,
|
|
};
|
|
|
|
if (container_field) |field| {
|
|
const empty_field = field.ast.type_expr == 0 and field.ast.value_expr == 0;
|
|
if (empty_field and node == .root) {
|
|
continue;
|
|
}
|
|
|
|
// @TODO: We can probably just use node_idx directly instead of first transforming to container
|
|
const container_decl: ?ast.full.ContainerDecl = switch (node) {
|
|
.container_decl, .container_decl_trailing => tree.containerDecl(node_idx),
|
|
.container_decl_arg, .container_decl_arg_trailing => tree.containerDeclArg(node_idx),
|
|
.container_decl_two, .container_decl_two_trailing => blk: {
|
|
var buffer: [2]ast.Node.Index = undefined;
|
|
break :blk tree.containerDeclTwo(&buffer, node_idx);
|
|
},
|
|
.tagged_union, .tagged_union_trailing => tree.taggedUnion(node_idx),
|
|
.tagged_union_enum_tag, .tagged_union_enum_tag_trailing => tree.taggedUnionEnumTag(node_idx),
|
|
.tagged_union_two, .tagged_union_two_trailing => blk: {
|
|
var buffer: [2]ast.Node.Index = undefined;
|
|
break :blk tree.taggedUnionTwo(&buffer, node_idx);
|
|
},
|
|
else => null,
|
|
};
|
|
|
|
if (container_decl) |container| {
|
|
const kind = token_tags[container.ast.main_token];
|
|
if (empty_field and (kind == .keyword_struct or (kind == .keyword_union and container.ast.arg == 0))) {
|
|
continue;
|
|
}
|
|
|
|
if (!std.mem.eql(u8, name, "_")) {
|
|
(try enum_completions.addOne(allocator)).* = .{
|
|
.label = name,
|
|
.kind = .Constant,
|
|
.documentation = if (try getDocComments(allocator, tree, node_idx, .Markdown)) |docs|
|
|
.{ .kind = .Markdown, .value = docs }
|
|
else
|
|
null,
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
if (try scopes.items[scope_idx].decls.fetchPut(name, .{ .ast_node = decl })) |existing| {
|
|
// TODO Record a redefinition error.
|
|
}
|
|
}
|
|
|
|
scopes.items[scope_idx].tests = tests.toOwnedSlice();
|
|
// scopes.items[scope_idx].uses = uses.toOwnedSlice();
|
|
return;
|
|
}
|
|
|
|
switch (node) {
|
|
.fn_decl => {
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, data[node_idx].rhs);
|
|
},
|
|
.fn_proto, .fn_proto_one, .fn_proto_simple, .fn_proto_multi => {
|
|
var buf: [1]ast.Node.Index = undefined;
|
|
const func = fnProto(tree, node_idx, &buf).?;
|
|
|
|
(try scopes.addOne(allocator)).* = .{
|
|
.range = nodeSourceRange(tree, node_idx),
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .{ .function = node_idx },
|
|
};
|
|
var scope_idx = scopes.items.len - 1;
|
|
errdefer scopes.items[scope_idx].decls.deinit();
|
|
|
|
var it = func.iterate(tree);
|
|
while (it.next()) |param| {
|
|
if (param.name_token) |name_token| {
|
|
if (try scopes.items[scope_idx].decls.fetchPut(tree.tokenSlice(name_token), .{ .param_decl = param })) |existing| {
|
|
// TODO record a redefinition error
|
|
}
|
|
}
|
|
}
|
|
|
|
return;
|
|
},
|
|
.test_decl => {
|
|
return try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, data[node_idx].rhs);
|
|
},
|
|
.block, .block_semicolon, .block_two, .block_two_semicolon => {
|
|
const first_token = tree.firstToken(node_idx);
|
|
const last_token = tree.lastToken(node_idx);
|
|
|
|
// if labeled block
|
|
if (token_tags[first_token] == .identifier) {
|
|
const scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, main_tokens[node_idx]).line_start,
|
|
.end = tree.tokenLocation(0, last_token).line_start,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
try scope.decls.putNoClobber(tree.tokenSlice(first_token), .{ .label_decl = first_token });
|
|
}
|
|
|
|
(try scopes.addOne(allocator)).* = .{
|
|
.range = nodeSourceRange(tree, node_idx),
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .{ .block = node_idx },
|
|
};
|
|
var scope_idx = scopes.items.len - 1;
|
|
// var uses = std.ArrayList(*ast.Node.Use).init(allocator);
|
|
|
|
errdefer {
|
|
scopes.items[scope_idx].decls.deinit();
|
|
// uses.deinit();
|
|
}
|
|
|
|
const statements: []const ast.Node.Index = switch (node) {
|
|
.block, .block_semicolon => tree.extra_data[data[node_idx].lhs..data[node_idx].rhs],
|
|
.block_two, .block_two_semicolon => blk: {
|
|
const statements = &[_]ast.Node.Index{ data[node_idx].lhs, data[node_idx].rhs };
|
|
const len: usize = if (data[node_idx].lhs == 0)
|
|
@as(usize, 0)
|
|
else if (data[node_idx].rhs == 0)
|
|
@as(usize, 1)
|
|
else
|
|
@as(usize, 2);
|
|
break :blk statements[0..len];
|
|
},
|
|
else => unreachable,
|
|
};
|
|
|
|
for (statements) |idx| {
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, idx);
|
|
// if (tags[
|
|
if (varDecl(tree, idx)) |var_decl| {
|
|
const name = tree.tokenSlice(var_decl.ast.mut_token + 1);
|
|
if (try scopes.items[scope_idx].decls.fetchPut(name, .{ .ast_node = idx })) |existing| {
|
|
// TODO record a redefinition error.
|
|
}
|
|
}
|
|
}
|
|
|
|
// scopes.items[scope_idx].uses = uses.toOwnedSlice();
|
|
return;
|
|
},
|
|
.@"comptime", .@"nosuspend" => {
|
|
return try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, data[node_idx].lhs);
|
|
},
|
|
.@"if", .if_simple => {
|
|
const if_node: ast.full.If = if (node == .@"if")
|
|
tree.ifFull(node_idx)
|
|
else
|
|
tree.ifSimple(node_idx);
|
|
|
|
if (if_node.payload_token) |payload| {
|
|
var scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, payload).line_start,
|
|
.end = tree.tokenLocation(0, tree.lastToken(if_node.ast.then_expr)).line_end,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
|
|
const name_token = payload + @boolToInt(token_tags[payload] == .asterisk);
|
|
std.debug.assert(token_tags[name_token] == .identifier);
|
|
|
|
const name = tree.tokenSlice(name_token);
|
|
try scope.decls.putNoClobber(name, .{
|
|
.pointer_payload = .{
|
|
.name = name_token,
|
|
.condition = if_node.ast.cond_expr,
|
|
},
|
|
});
|
|
}
|
|
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, if_node.ast.then_expr);
|
|
|
|
if (if_node.ast.else_expr != 0) {
|
|
if (if_node.error_token) |err_token| {
|
|
std.debug.assert(token_tags[err_token] == .identifier);
|
|
var scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, err_token).line_start,
|
|
.end = tree.tokenLocation(0, tree.lastToken(if_node.ast.else_expr)).line_end,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
|
|
const name = tree.tokenSlice(err_token);
|
|
try scope.decls.putNoClobber(name, .{ .ast_node = if_node.ast.else_expr });
|
|
}
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, if_node.ast.else_expr);
|
|
}
|
|
},
|
|
.@"while", .while_simple, .while_cont, .@"for", .for_simple => {
|
|
const while_node: ast.full.While = switch (node) {
|
|
.@"while" => tree.whileFull(node_idx),
|
|
.while_simple => tree.whileSimple(node_idx),
|
|
.while_cont => tree.whileCont(node_idx),
|
|
.@"for" => tree.forFull(node_idx),
|
|
.for_simple => tree.forSimple(node_idx),
|
|
else => unreachable,
|
|
};
|
|
if (while_node.label_token) |label| {
|
|
std.debug.assert(tags[label] == .identifier);
|
|
var scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, main_tokens[node_idx]).line_start,
|
|
.end = tree.tokenLocation(0, tree.lastToken(while_node.ast.then_expr)).line_end,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
|
|
try scope.decls.putNoClobber(tree.tokenSlice(label), .{ .label_decl = label });
|
|
}
|
|
|
|
if (while_node.payload_token) |payload| {
|
|
var scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, payload).line_start,
|
|
.end = tree.tokenLocation(0, tree.lastToken(while_node.ast.then_expr)).line_end,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
|
|
const name_token = payload + @boolToInt(token_tags[payload] == .asterisk);
|
|
std.debug.assert(token_tags[name_token] == .identifier);
|
|
|
|
const name = tree.tokenSlice(name_token);
|
|
try scope.decls.putNoClobber(name, .{
|
|
.pointer_payload = .{
|
|
.name = name_token,
|
|
.condition = while_node.ast.cond_expr,
|
|
},
|
|
});
|
|
}
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, while_node.ast.then_expr);
|
|
|
|
if (while_node.ast.else_expr != 0) {
|
|
if (while_node.error_token) |err_token| {
|
|
std.debug.assert(token_tags[err_token] == .identifier);
|
|
var scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, err_token).line_start,
|
|
.end = tree.tokenLocation(0, tree.lastToken(while_node.ast.else_expr)).line_end,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
|
|
const name = tree.tokenSlice(err_token);
|
|
try scope.decls.putNoClobber(name, .{ .ast_node = while_node.ast.else_expr });
|
|
}
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, while_node.ast.else_expr);
|
|
}
|
|
},
|
|
.switch_case, .switch_case_one => {
|
|
const switch_case: ast.full.SwitchCase = switch (node) {
|
|
.switch_case => tree.switchCase(node_idx),
|
|
.switch_case_one => tree.switchCaseOne(node_idx),
|
|
else => unreachable,
|
|
};
|
|
|
|
if (switch_case.payload_token) |payload| {
|
|
var scope = try scopes.addOne(allocator);
|
|
scope.* = .{
|
|
.range = .{
|
|
.start = tree.tokenLocation(0, payload).line_start,
|
|
.end = tree.tokenLocation(0, tree.lastToken(switch_case.ast.target_expr)).line_end,
|
|
},
|
|
.decls = std.StringHashMap(Declaration).init(allocator),
|
|
// .uses = &[0]*ast.Node.Use{},
|
|
.tests = &.{},
|
|
.data = .other,
|
|
};
|
|
errdefer scope.decls.deinit();
|
|
|
|
// if payload is *name than get next token
|
|
const name_token = payload + @boolToInt(token_tags[payload] == .asterisk);
|
|
const name = tree.tokenSlice(name_token);
|
|
|
|
try scope.decls.putNoClobber(name, .{
|
|
.switch_payload = .{
|
|
.node = payload,
|
|
.switch_expr = switch_case.ast.target_expr,
|
|
.items = switch_case.ast.values,
|
|
},
|
|
});
|
|
}
|
|
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, switch_case.ast.target_expr);
|
|
},
|
|
.global_var_decl, .local_var_decl, .aligned_var_decl, .simple_var_decl => {
|
|
const var_decl = varDecl(tree, node_idx).?;
|
|
if (var_decl.ast.type_node != 0) {
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, var_decl.ast.type_node);
|
|
}
|
|
|
|
if (var_decl.ast.init_node != 0) {
|
|
try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, var_decl.ast.init_node);
|
|
}
|
|
},
|
|
else => {
|
|
// @TODO: Could we just do node_idx + 1 here?
|
|
// var child_idx: usize = 0;
|
|
// while (node.iterate(child_idx)) |child_node| : (child_idx += 1) {
|
|
// try makeScopeInternal(allocator, scopes, error_completions, enum_completions, tree, child_node);
|
|
// }
|
|
},
|
|
}
|
|
}
|