325 lines
10 KiB
Zig
325 lines
10 KiB
Zig
const std = @import("std");
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const dusk = @import("dusk");
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const expect = std.testing.expect;
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const allocator = std.testing.allocator;
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fn sdkPath(comptime suffix: []const u8) []const u8 {
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if (suffix[0] != '/') @compileError("suffix must be an absolute path");
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return comptime blk: {
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const root_dir = std.fs.path.dirname(@src().file) orelse ".";
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break :blk root_dir ++ suffix;
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};
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}
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// TODO: move this to cli/main.zig
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pub fn printErrors(errors: []dusk.ErrorMsg, source: []const u8, file_path: ?[]const u8) !void {
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var bw = std.io.bufferedWriter(std.io.getStdErr().writer());
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const b = bw.writer();
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const term = std.debug.TTY.Config{ .escape_codes = {} };
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for (errors) |*err| {
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defer err.deinit(allocator);
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const loc_extra = err.loc.extraInfo(source);
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// 'file:line:column error: <MSG>'
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try term.setColor(b, .Bold);
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try b.print("{?s}:{d}:{d} ", .{ file_path, loc_extra.line, loc_extra.col });
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try term.setColor(b, .Red);
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try b.writeAll("error: ");
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try term.setColor(b, .Reset);
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try term.setColor(b, .Bold);
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try b.writeAll(err.msg);
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try b.writeByte('\n');
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try printCode(b, term, source, err.loc);
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// note
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if (err.note) |note| {
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if (note.loc) |note_loc| {
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const note_loc_extra = note_loc.extraInfo(source);
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try term.setColor(b, .Reset);
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try term.setColor(b, .Bold);
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try b.print("{?s}:{d}:{d} ", .{ file_path, note_loc_extra.line, note_loc_extra.col });
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}
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try term.setColor(b, .Cyan);
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try b.writeAll("note: ");
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try term.setColor(b, .Reset);
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try term.setColor(b, .Bold);
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try b.writeAll(note.msg);
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try b.writeByte('\n');
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if (note.loc) |note_loc| {
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try printCode(b, term, source, note_loc);
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}
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}
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try term.setColor(b, .Reset);
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}
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try bw.flush();
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}
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fn printCode(writer: anytype, term: std.debug.TTY.Config, source: []const u8, loc: dusk.Token.Loc) !void {
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const loc_extra = loc.extraInfo(source);
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try term.setColor(writer, .Dim);
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try writer.print("{d} │ ", .{loc_extra.line});
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try term.setColor(writer, .Reset);
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try writer.writeAll(source[loc_extra.line_start..loc.start]);
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try term.setColor(writer, .Green);
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try writer.writeAll(source[loc.start..loc.end]);
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try term.setColor(writer, .Reset);
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try writer.writeAll(source[loc.end..loc_extra.line_end]);
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try writer.writeByte('\n');
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// location pointer
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const line_number_len = (std.math.log10(loc_extra.line) + 1) + 3;
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try writer.writeByteNTimes(
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' ',
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line_number_len + (loc_extra.col - 1),
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);
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try term.setColor(writer, .Bold);
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try term.setColor(writer, .Green);
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try writer.writeByte('^');
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try writer.writeByteNTimes('~', loc.end - loc.start - 1);
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try writer.writeByte('\n');
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}
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fn expectIR(source: [:0]const u8) !dusk.IR {
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var res = try dusk.Ast.parse(allocator, source);
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switch (res) {
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.tree => |*tree| {
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defer tree.deinit(allocator);
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switch (try dusk.IR.generate(allocator, tree)) {
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.ir => |ir| return ir,
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.errors => |err_msgs| {
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try printErrors(err_msgs, source, null);
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allocator.free(err_msgs);
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return error.ExpectedIR;
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},
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}
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},
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.errors => |err_msgs| {
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try printErrors(err_msgs, source, null);
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allocator.free(err_msgs);
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return error.Parsing;
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},
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}
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}
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fn expectError(source: [:0]const u8, err: dusk.ErrorMsg) !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{ .stack_trace_frames = 12 }){};
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const all = gpa.allocator();
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defer _ = gpa.deinit();
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var res = try dusk.Ast.parse(all, source);
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const err_list = switch (res) {
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.tree => |*tree| blk: {
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defer tree.deinit(all);
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switch (try dusk.IR.generate(all, tree)) {
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.ir => |*ir| {
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ir.deinit();
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return error.ExpectedError;
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},
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.errors => |err_msgs| break :blk err_msgs,
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}
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return error.ExpectedError;
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},
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.errors => |err_msgs| err_msgs,
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};
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defer {
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for (err_list) |*err_msg| err_msg.deinit(all);
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all.free(err_list);
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}
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{
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errdefer {
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std.debug.print(
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"\n\x1b[31mexpected error({d}..{d}):\n{s}\n\x1b[32mactual error({d}..{d}):\n{s}\n\x1b[0m",
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.{
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err.loc.start, err.loc.end, err.msg,
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err_list[0].loc.start, err_list[0].loc.end, err_list[0].msg,
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},
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);
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}
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try expect(std.mem.eql(u8, err.msg, err_list[0].msg));
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try expect(err_list[0].loc.start == err.loc.start);
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try expect(err_list[0].loc.end == err.loc.end);
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}
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if (err_list[0].note) |_| {
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errdefer {
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std.debug.print(
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"\n\x1b[31mexpected note msg:\n{s}\n\x1b[32mactual note msg:\n{s}\n\x1b[0m",
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.{ err.note.?.msg, err_list[0].note.?.msg },
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);
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}
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if (err.note == null) {
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std.debug.print("\x1b[31mnote missed: {s}\x1b[0m\n", .{err_list[0].note.?.msg});
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return error.NoteMissed;
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}
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try expect(std.mem.eql(u8, err.note.?.msg, err_list[0].note.?.msg));
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if (err_list[0].note.?.loc) |_| {
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errdefer {
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std.debug.print(
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"\n\x1b[31mexpected note loc: {d}..{d}\n\x1b[32mactual note loc: {d}..{d}\n\x1b[0m",
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.{
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err.note.?.loc.?.start, err.note.?.loc.?.end,
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err_list[0].note.?.loc.?.start, err_list[0].note.?.loc.?.end,
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},
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);
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}
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try expect(err_list[0].note.?.loc.?.start == err.note.?.loc.?.start);
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try expect(err_list[0].note.?.loc.?.end == err.note.?.loc.?.end);
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}
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}
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}
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test "empty" {
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const source = "";
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var ir = try expectIR(source);
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defer ir.deinit();
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}
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test "boids" {
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const source = @embedFile("boids.wgsl");
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var ir = try expectIR(source);
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defer ir.deinit();
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}
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test "gkurve" {
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if (true) return error.SkipZigTest;
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const source = @embedFile("gkurve.wgsl");
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var ir = try expectIR(source);
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defer ir.deinit();
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}
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test "variable & expressions" {
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// const source = "var expr = 1 + 5 + 2 * 3 > 6 >> 7;";
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// var ir = try expectIR(source);
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// defer ir.deinit();
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// const root_node = 0;
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// try expect(ir.nodeLHS(root_node) + 1 == ir.nodeRHS(root_node));
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// const variable = ir.spanToList(root_node)[0];
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// const variable_name = ir.tokenLoc(ir.extraData(dusk.Ast.Node.GlobalVarDecl, ir.nodeLHS(variable)).name);
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// try expect(std.mem.eql(u8, "expr", variable_name.slice(source)));
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// try expect(ir.nodeTag(variable) == .global_variable);
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// try expect(ir.tokenTag(ir.nodeToken(variable)) == .k_var);
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// const expr = ir.nodeRHS(variable);
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// try expect(ir.nodeTag(expr) == .greater);
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// const @"1 + 5 + 2 * 3" = ir.nodeLHS(expr);
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// try expect(ir.nodeTag(@"1 + 5 + 2 * 3") == .add);
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// const @"1 + 5" = ir.nodeLHS(@"1 + 5 + 2 * 3");
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// try expect(ir.nodeTag(@"1 + 5") == .add);
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// const @"1" = ir.nodeLHS(@"1 + 5");
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// try expect(ir.nodeTag(@"1") == .number_literal);
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// const @"5" = ir.nodeRHS(@"1 + 5");
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// try expect(ir.nodeTag(@"5") == .number_literal);
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// const @"2 * 3" = ir.nodeRHS(@"1 + 5 + 2 * 3");
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// try expect(ir.nodeTag(@"2 * 3") == .mul);
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// const @"6 >> 7" = ir.nodeRHS(expr);
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// try expect(ir.nodeTag(@"6 >> 7") == .shift_right);
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// const @"6" = ir.nodeLHS(@"6 >> 7");
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// try expect(ir.nodeTag(@"6") == .number_literal);
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// const @"7" = ir.nodeRHS(@"6 >> 7");
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// try expect(ir.nodeTag(@"7") == .number_literal);
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}
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test "simple analyse's result" {
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// {
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// const source =
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// \\type T0 = f32;
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// \\type T1 = T0;
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// \\type T2 = T1;
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// \\type T3 = T2;
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// \\struct S0 { m0: T3 }
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// ;
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// var ir = try expectIR(source);
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// // try std.testing.expect(ir.root[0].@"struct".members[0].type.number == .f32);
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// ir.deinit();
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// }
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}
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test "must error" {
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{
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const source = "^";
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try expectError(source, .{
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.msg = "expected global declaration, found '^'",
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.loc = .{ .start = 0, .end = 1 },
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});
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}
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{
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const source = "struct S { m0: array<f32>, m1: f32 }";
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try expectError(source, .{
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.msg = "struct member with runtime-sized array type, must be the last member of the structure",
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.loc = .{ .start = 11, .end = 13 },
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});
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}
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{
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const source = "struct S0 { m: S1 }";
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try expectError(source, .{
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.msg = "use of undeclared identifier 'S1'",
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.loc = .{ .start = 15, .end = 17 },
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});
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}
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{
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const source =
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\\var S1 = 0;
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\\struct S0 { m: S1 }
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;
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try expectError(source, .{
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.msg = "'S1' is not a type",
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.loc = .{ .start = 27, .end = 29 },
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});
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}
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{
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const source =
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\\struct S0 { m: sampler }
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;
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try expectError(source, .{
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.msg = "invalid struct member type 'sampler'",
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.loc = .{ .start = 12, .end = 13 },
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});
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}
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{
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const source =
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\\var d1 = 0;
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\\var d1 = 0;
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;
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try expectError(source, .{
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.msg = "redeclaration of 'd1'",
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.loc = .{ .start = 16, .end = 18 },
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.note = .{ .msg = "other declaration here", .loc = .{ .start = 4, .end = 6 } },
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});
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}
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{
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const source = "struct S { m0: vec2<sampler> }";
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try expectError(source, .{
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.msg = "invalid vector component type",
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.loc = .{ .start = 20, .end = 27 },
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.note = .{ .msg = "must be 'i32', 'u32', 'f32', 'f16' or 'bool'" },
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});
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}
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{
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const source =
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\\type T0 = sampler;
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\\type T1 = texture_1d<T0>;
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;
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try expectError(source, .{
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.msg = "invalid sampled texture component type",
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.loc = .{ .start = 40, .end = 42 },
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.note = .{ .msg = "must be 'i32', 'u32' or 'f32'" },
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});
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}
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}
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