336 lines
11 KiB
Zig
336 lines
11 KiB
Zig
const std = @import("std");
|
|
const zls = @import("zls");
|
|
const builtin = @import("builtin");
|
|
|
|
const Ast = std.zig.Ast;
|
|
|
|
const ComptimeInterpreter = zls.ComptimeInterpreter;
|
|
const InternPool = zls.InternPool;
|
|
const Index = InternPool.Index;
|
|
const Key = InternPool.Key;
|
|
const ast = zls.ast;
|
|
const offsets = zls.offsets;
|
|
|
|
const allocator: std.mem.Allocator = std.testing.allocator;
|
|
|
|
test "ComptimeInterpreter - primitive types" {
|
|
try testExprCheck("true", .{ .simple = .bool }, .{ .simple = .bool_true });
|
|
try testExprCheck("false", .{ .simple = .bool }, .{ .simple = .bool_false });
|
|
try testExprCheck("5", .{ .simple = .comptime_int }, .{ .int_u64_value = 5 });
|
|
// TODO try testExprCheck("-2", .{ .simple = .comptime_int }, .{ .int_i64_value = -2 });
|
|
try testExprCheck("3.0", .{ .simple = .comptime_float }, null);
|
|
|
|
try testExprCheck("null", .{ .simple = .null_type }, .{ .simple = .null_value });
|
|
try testExprCheck("void", .{ .simple = .type }, .{ .simple = .void });
|
|
try testExprCheck("undefined", .{ .simple = .undefined_type }, .{ .simple = .undefined_value });
|
|
try testExprCheck("noreturn", .{ .simple = .type }, .{ .simple = .noreturn });
|
|
}
|
|
|
|
test "ComptimeInterpreter - expressions" {
|
|
if (true) return error.SkipZigTest; // TODO
|
|
try testExprCheck("5 + 3", .{ .simple = .comptime_int }, .{ .int_u64_value = 8 });
|
|
try testExprCheck("5.2 + 4.2", .{ .simple = .comptime_float }, null);
|
|
|
|
try testExprCheck("3 == 3", .{ .simple = .bool }, .{ .simple = .bool_true });
|
|
try testExprCheck("5.2 == 2.1", .{ .simple = .bool }, .{ .simple = .bool_false });
|
|
|
|
try testExprCheck("@as(?bool, null) orelse true", .{ .simple = .bool }, .{ .simple = .bool_true });
|
|
}
|
|
|
|
test "ComptimeInterpreter - builtins" {
|
|
if (true) return error.SkipZigTest; // TODO
|
|
try testExprCheck("@as(bool, true)", .{ .simple = .bool }, .{ .simple = .bool_true });
|
|
try testExprCheck("@as(u32, 3)", .{ .int_type = .{
|
|
.signedness = .unsigned,
|
|
.bits = 32,
|
|
} }, .{ .int_u64_value = 3 });
|
|
}
|
|
|
|
test "ComptimeInterpreter - string literal" {
|
|
if (true) return error.SkipZigTest; // TODO
|
|
const source =
|
|
\\const foobarbaz = "hello world!";
|
|
\\
|
|
;
|
|
|
|
var result = try testInterpret(source, 1);
|
|
defer result.deinit();
|
|
|
|
try std.testing.expect(result.ty == .pointer_type);
|
|
try std.testing.expect(result.val == .bytes);
|
|
|
|
try std.testing.expectEqualStrings("hello world!", result.val.bytes);
|
|
}
|
|
|
|
test "ComptimeInterpreter - labeled block" {
|
|
try testExprCheck(
|
|
\\blk: {
|
|
\\ break :blk true;
|
|
\\}
|
|
, .{ .simple = .bool }, .{ .simple = .bool_true });
|
|
}
|
|
|
|
test "ComptimeInterpreter - if" {
|
|
try testExprCheck(
|
|
\\blk: {
|
|
\\ break :blk if (true) true else false;
|
|
\\}
|
|
, .{ .simple = .bool }, .{ .simple = .bool_true });
|
|
try testExprCheck(
|
|
\\blk: {
|
|
\\ break :blk if (false) true else false;
|
|
\\}
|
|
, .{ .simple = .bool }, .{ .simple = .bool_false });
|
|
}
|
|
|
|
test "ComptimeInterpreter - call return primitive type" {
|
|
try testCallCheck(
|
|
\\pub fn Foo() type {
|
|
\\ return bool;
|
|
\\}
|
|
, &.{}, .{ .simple = .bool });
|
|
|
|
try testCallCheck(
|
|
\\pub fn Foo() type {
|
|
\\ return u32;
|
|
\\}
|
|
, &.{}, .{ .int_type = .{ .signedness = .unsigned, .bits = 32 } });
|
|
|
|
try testCallCheck(
|
|
\\pub fn Foo() type {
|
|
\\ return i128;
|
|
\\}
|
|
, &.{}, .{ .int_type = .{ .signedness = .signed, .bits = 128 } });
|
|
|
|
try testCallCheck(
|
|
\\pub fn Foo() type {
|
|
\\ const alpha = i128;
|
|
\\ return alpha;
|
|
\\}
|
|
, &.{}, .{ .int_type = .{ .signedness = .signed, .bits = 128 } });
|
|
}
|
|
|
|
test "ComptimeInterpreter - call return struct" {
|
|
var result = try testCall(
|
|
\\pub fn Foo() type {
|
|
\\ return struct {
|
|
\\ slay: bool,
|
|
\\ var abc = 123;
|
|
\\ };
|
|
\\}
|
|
, &.{});
|
|
defer result.deinit();
|
|
try std.testing.expect(result.ty == .simple);
|
|
try std.testing.expect(result.ty.simple == .type);
|
|
const struct_info = result.val.struct_type;
|
|
try std.testing.expectEqual(Index.none, struct_info.backing_int_ty);
|
|
try std.testing.expectEqual(std.builtin.Type.ContainerLayout.Auto, struct_info.layout);
|
|
try std.testing.expectEqual(@as(usize, 1), struct_info.fields.len);
|
|
// try std.testing.expectEqualStrings("slay", struct_info.fields[0].name);
|
|
// try std.testing.expect(struct_info.fields[0].ty != .none); // TODO check for bool
|
|
}
|
|
|
|
test "ComptimeInterpreter - call comptime argument" {
|
|
const source =
|
|
\\pub fn Foo(comptime my_arg: bool) type {
|
|
\\ var abc = z: {break :z if (!my_arg) 123 else 0;};
|
|
\\ if (abc == 123) return u69;
|
|
\\ return u8;
|
|
\\}
|
|
;
|
|
|
|
var result1 = try testCall(source, &.{
|
|
Value{
|
|
.ty = .{ .simple = .bool },
|
|
.val = .{ .simple = .bool_true },
|
|
},
|
|
});
|
|
defer result1.deinit();
|
|
try std.testing.expect(result1.ty == .simple);
|
|
try std.testing.expect(result1.ty.simple == .type);
|
|
try std.testing.expectEqual(Key{ .int_type = .{ .signedness = .unsigned, .bits = 8 } }, result1.val);
|
|
|
|
var result2 = try testCall(source, &.{
|
|
Value{
|
|
.ty = .{ .simple = .bool },
|
|
.val = .{ .simple = .bool_false },
|
|
},
|
|
});
|
|
defer result2.deinit();
|
|
try std.testing.expect(result2.ty == .simple);
|
|
try std.testing.expect(result2.ty.simple == .type);
|
|
try std.testing.expectEqual(Key{ .int_type = .{ .signedness = .unsigned, .bits = 69 } }, result2.val);
|
|
}
|
|
|
|
//
|
|
// Helper functions
|
|
//
|
|
|
|
const Result = struct {
|
|
interpreter: ComptimeInterpreter,
|
|
ty: Key,
|
|
val: Key,
|
|
|
|
pub fn deinit(self: *Result) void {
|
|
self.interpreter.deinit();
|
|
}
|
|
};
|
|
|
|
const Value = struct {
|
|
ty: Key,
|
|
val: Key,
|
|
};
|
|
|
|
fn testCall(source: []const u8, arguments: []const Value) !Result {
|
|
var config = zls.Config{};
|
|
var doc_store = zls.DocumentStore{
|
|
.allocator = allocator,
|
|
.config = &config,
|
|
};
|
|
defer doc_store.deinit();
|
|
|
|
const test_uri: []const u8 = switch (builtin.os.tag) {
|
|
.windows => "file:///C:\\test.zig",
|
|
else => "file:///test.zig",
|
|
};
|
|
|
|
const handle = try doc_store.openDocument(test_uri, source);
|
|
|
|
var interpreter = ComptimeInterpreter{
|
|
.allocator = allocator,
|
|
.document_store = &doc_store,
|
|
.uri = handle.uri,
|
|
};
|
|
errdefer interpreter.deinit();
|
|
|
|
_ = try interpretReportErrors(&interpreter, 0, .none);
|
|
|
|
var args = try allocator.alloc(ComptimeInterpreter.Value, arguments.len);
|
|
defer allocator.free(args);
|
|
|
|
for (arguments) |argument, i| {
|
|
args[i] = .{
|
|
.interpreter = &interpreter,
|
|
.node_idx = 0,
|
|
.ty = try interpreter.ip.get(interpreter.allocator, argument.ty),
|
|
.val = try interpreter.ip.get(interpreter.allocator, argument.val),
|
|
};
|
|
}
|
|
|
|
const func_node = for (handle.tree.nodes.items(.tag)) |tag, i| {
|
|
if (tag == .fn_decl) break @intCast(Ast.Node.Index, i);
|
|
} else unreachable;
|
|
|
|
const call_result = try interpreter.call(.none, func_node, args, .{});
|
|
|
|
return Result{
|
|
.interpreter = interpreter,
|
|
.ty = interpreter.ip.indexToKey(call_result.result.value.ty),
|
|
.val = interpreter.ip.indexToKey(call_result.result.value.val),
|
|
};
|
|
}
|
|
|
|
fn testCallCheck(
|
|
source: []const u8,
|
|
arguments: []const Value,
|
|
expected_ty: Key,
|
|
) !void {
|
|
var result = try testCall(source, arguments);
|
|
defer result.deinit();
|
|
try std.testing.expect(result.ty == .simple);
|
|
try std.testing.expect(result.ty.simple == .type);
|
|
if (!expected_ty.eql(result.val)) {
|
|
std.debug.print("expected type `{}`, found `{}`\n", .{ expected_ty.fmtType(result.interpreter.ip), result.val.fmtType(result.interpreter.ip) });
|
|
return error.TestExpectedEqual;
|
|
}
|
|
}
|
|
|
|
fn testInterpret(source: []const u8, node_idx: Ast.Node.Index) !Result {
|
|
var config = zls.Config{};
|
|
var doc_store = zls.DocumentStore{
|
|
.allocator = allocator,
|
|
.config = &config,
|
|
};
|
|
defer doc_store.deinit();
|
|
|
|
const test_uri: []const u8 = switch (builtin.os.tag) {
|
|
.windows => "file:///C:\\test.zig",
|
|
else => "file:///test.zig",
|
|
};
|
|
|
|
const handle = try doc_store.openDocument(test_uri, source);
|
|
|
|
var interpreter = ComptimeInterpreter{
|
|
.allocator = allocator,
|
|
.document_store = &doc_store,
|
|
.uri = handle.uri,
|
|
};
|
|
errdefer interpreter.deinit();
|
|
|
|
_ = try interpretReportErrors(&interpreter, 0, .none);
|
|
|
|
const result = try interpreter.interpret(node_idx, .none, .{});
|
|
|
|
try std.testing.expect(result.value.ty != .none);
|
|
try std.testing.expect(result.value.val != .none);
|
|
|
|
return Result{
|
|
.interpreter = interpreter,
|
|
.ty = interpreter.ip.indexToKey(result.value.ty),
|
|
.val = interpreter.ip.indexToKey(result.value.val),
|
|
};
|
|
}
|
|
|
|
fn testExprCheck(
|
|
expr: []const u8,
|
|
expected_ty: Key,
|
|
expected_val: ?Key,
|
|
) !void {
|
|
const source = try std.fmt.allocPrint(allocator,
|
|
\\const foobarbaz = {s};
|
|
, .{expr});
|
|
defer allocator.free(source);
|
|
|
|
var result = try testInterpret(source, 1);
|
|
defer result.deinit();
|
|
var ip: *InternPool = &result.interpreter.ip;
|
|
|
|
if (!expected_ty.eql(result.ty)) {
|
|
std.debug.print("expected type `{}`, found `{}`\n", .{ expected_ty.fmtType(ip.*), result.ty.fmtType(ip.*) });
|
|
return error.TestExpectedEqual;
|
|
}
|
|
|
|
if (expected_val) |expected_value| {
|
|
if (!expected_value.eql(result.val)) {
|
|
const expected_ty_index = try ip.get(allocator, expected_ty);
|
|
const actual_ty_index = try ip.get(allocator, result.ty);
|
|
std.debug.print("expected value `{}`, found `{}`\n", .{
|
|
expected_value.fmtValue(expected_ty_index, ip.*),
|
|
result.val.fmtValue(actual_ty_index, ip.*),
|
|
});
|
|
return error.TestExpectedEqual;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn interpretReportErrors(
|
|
interpreter: *ComptimeInterpreter,
|
|
node_idx: Ast.Node.Index,
|
|
namespace: InternPool.NamespaceIndex,
|
|
) !ComptimeInterpreter.InterpretResult {
|
|
const result = interpreter.interpret(node_idx, namespace, .{});
|
|
|
|
// TODO use ErrorBuilder
|
|
var err_it = interpreter.errors.iterator();
|
|
if (interpreter.errors.count() != 0) {
|
|
const handle = interpreter.getHandle();
|
|
std.debug.print("\n{s}\n", .{handle.text});
|
|
while (err_it.next()) |entry| {
|
|
const token = handle.tree.firstToken(entry.key_ptr.*);
|
|
const position = offsets.tokenToPosition(handle.tree, token, .@"utf-8");
|
|
std.debug.print("{d}:{d}: {s}\n", .{ position.line, position.character, entry.value_ptr.message });
|
|
}
|
|
}
|
|
return result;
|
|
}
|