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Refactor Kym runtime API

This commit is contained in:
kayomn 2023-07-22 11:03:23 +01:00
parent 1ea115b277
commit 7b4b827dc2
5 changed files with 266 additions and 258 deletions
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42
source/ona/app.zig
View File

@ -17,25 +17,17 @@ pub const Manifest = struct {
defer env.discard(manifest_ref); defer env.discard(manifest_ref);
const title_ref = try kym.get_field(env, manifest_ref, "title");
defer env.discard(title_ref);
const title_string = switch (env.unbox(title_ref)) {
.string => |string| string,
else => "",
};
const width = @as(u16, get: { const width = @as(u16, get: {
const ref = try kym.get_field(env, manifest_ref, "width"); const ref = try kym.get_field(env, manifest_ref, "width");
defer env.discard(ref); defer env.discard(ref);
if (env.unbox(ref).expect_number()) |number| {
// TODO: Add safety-checks to int cast. // TODO: Add safety-checks to int cast.
break: get switch (env.unbox(ref)) { break: get @intFromFloat(number);
.number => |number| @intFromFloat(number), }
else => self.width,
}; break: get self.width;
}); });
const height = @as(u16, get: { const height = @as(u16, get: {
@ -43,11 +35,12 @@ pub const Manifest = struct {
defer env.discard(ref); defer env.discard(ref);
if (env.unbox(ref).expect_number()) |number| {
// TODO: Add safety-checks to int cast. // TODO: Add safety-checks to int cast.
break: get switch (env.unbox(ref)) { break: get @intFromFloat(number);
.number => |number| @intFromFloat(number), }
else => self.height,
}; break: get self.height;
}); });
const tick_rate = @as(f32, get: { const tick_rate = @as(f32, get: {
@ -55,13 +48,20 @@ pub const Manifest = struct {
defer env.discard(ref); defer env.discard(ref);
break: get switch (env.unbox(ref)) { if (env.unbox(ref).expect_number()) |number| {
.number => |number| @floatCast(number), // TODO: Add safety-checks to int cast.
else => self.tick_rate, break: get @floatCast(number);
}; }
break: get self.tick_rate;
}); });
{ {
const title_ref = try kym.get_field(env, manifest_ref, "title");
defer env.discard(title_ref);
const title_string = env.unbox(title_ref).expect_string() orelse "";
const limited_title_len = coral.math.min(title_string.len, self.title.len); const limited_title_len = coral.math.min(title_string.len, self.title.len);
coral.io.copy(&self.title, title_string[0 .. limited_title_len]); coral.io.copy(&self.title, title_string[0 .. limited_title_len]);

10
source/ona/heap.zig
View File

@ -156,15 +156,15 @@ pub const allocator = coral.io.Allocator.bind(Context, &context, .{
pub fn trace_leaks() void { pub fn trace_leaks() void {
switch (builtin.mode) { switch (builtin.mode) {
.Debug, .ReleaseSafe => { .Debug, .ReleaseSafe => {
var current_allocation_info = context.allocation_info_head; var current_node = context.head;
while (current_allocation_info) |allocation_info| : (current_allocation_info = allocation_info.next_info) { while (current_node) |node| : (current_node = node.next) {
std.debug.print("{d} byte leak at 0x{x} detected:\n", .{ std.debug.print("{d} byte leak at 0x{x} detected:\n", .{
allocation_info.size, node.size,
@as(usize, allocation_info) + @sizeOf(AllocationNode), @intFromPtr(node) + @sizeOf(AllocationNode),
}); });
allocation_info.trace.dump(); node.trace.dump();
} }
}, },

223
source/ona/kym.zig
View File

@ -10,17 +10,48 @@ const file = @import("./file.zig");
const tokens = @import("./kym/tokens.zig"); const tokens = @import("./kym/tokens.zig");
pub const Args = []const ?*const RuntimeRef; pub const Any = union (enum) {
nil,
boolean: bool,
number: Float,
string: []const coral.io.Byte,
dynamic: *DynamicObject,
pub const CallContext = struct { pub fn expect_dynamic(self: Any) ?*DynamicObject {
env: *RuntimeEnv, return switch (self) {
caller: ?*const RuntimeRef, .dynamic => |dynamic| dynamic,
userdata: []coral.io.Byte, else => null,
}; };
}
pub fn expect_number(self: Any) ?Float {
return switch (self) {
.number => |number| number,
else => null,
};
}
pub fn expect_string(self: Any) ?[]const coral.io.Byte {
return switch (self) {
.string => |string| string,
else => null,
};
}
};
pub const Caller = coral.io.Generator(RuntimeError!?*RuntimeRef, *RuntimeEnv);
pub const DynamicObject = struct { pub const DynamicObject = struct {
userdata: []coral.io.Byte, userdata: []coral.io.Byte,
typeinfo: *const Typeinfo, typeinfo: *const Typeinfo,
pub fn as_caller(self: *DynamicObject) Caller {
return Caller.bind(DynamicObject, self, DynamicObject.call);
}
fn call(self: *DynamicObject, env: *RuntimeEnv) RuntimeError!?*RuntimeRef {
return self.typeinfo.call(env);
}
}; };
pub const ErrorHandler = coral.io.Generator(void, ErrorInfo); pub const ErrorHandler = coral.io.Generator(void, ErrorInfo);
@ -54,7 +85,7 @@ pub const RuntimeEnv = struct {
const FrameStack = coral.list.Stack(Frame); const FrameStack = coral.list.Stack(Frame);
const SyscallerTable = coral.map.StringTable(Syscaller); const SyscallerTable = coral.map.StringTable(Caller);
const RefStack = coral.list.Stack(?*RuntimeRef); const RefStack = coral.list.Stack(?*RuntimeRef);
@ -72,7 +103,7 @@ pub const RuntimeEnv = struct {
pub const Syscall = struct { pub const Syscall = struct {
name: []const coral.io.Byte, name: []const coral.io.Byte,
caller: Syscaller, caller: Caller,
}; };
pub fn acquire(self: *RuntimeEnv, ref: ?*const RuntimeRef) ?*RuntimeRef { pub fn acquire(self: *RuntimeEnv, ref: ?*const RuntimeRef) ?*RuntimeRef {
@ -94,6 +125,30 @@ pub const RuntimeEnv = struct {
} }
} }
pub fn call(
self: *RuntimeEnv,
name: []const coral.io.Byte,
arg_count: u8,
caller: Caller,
) RuntimeError!?*RuntimeRef {
try self.frames.push_one(.{
.name = name,
.arg_count = arg_count,
.locals_top = self.local_refs.values.len,
});
defer {
const frame = self.frames.pop();
coral.debug.assert(frame != null);
coral.debug.assert(self.local_refs.drop(
(self.local_refs.values.len - frame.?.locals_top) + frame.?.arg_count));
}
return caller.invoke(self);
}
pub fn discard(self: *RuntimeEnv, ref: ?*RuntimeRef) void { pub fn discard(self: *RuntimeEnv, ref: ?*RuntimeRef) void {
const key = @intFromPtr(ref orelse return); const key = @intFromPtr(ref orelse return);
var ref_data = self.ref_values.remove(key) orelse unreachable; var ref_data = self.ref_values.remove(key) orelse unreachable;
@ -143,28 +198,13 @@ pub const RuntimeEnv = struct {
}; };
} }
var exe = Chunk.make(self); var chunk = Chunk.make(self);
defer exe.free(); defer chunk.free();
try exe.compile_ast(ast); try chunk.compile_ast(ast);
return try exe.execute(name); return self.call(name, 0, chunk.as_caller());
}
pub fn frame_pop(self: *RuntimeEnv) void {
const frame = self.frames.pop();
coral.debug.assert(frame != null);
coral.debug.assert(self.local_refs.drop((self.local_refs.values.len - frame.?.locals_top) + frame.?.arg_count));
}
pub fn frame_push(self: *RuntimeEnv, frame_name: []const coral.io.Byte, arg_count: u8) RuntimeError!void {
try self.frames.push_one(.{
.name = frame_name,
.arg_count = arg_count,
.locals_top = self.local_refs.values.len,
});
} }
pub fn free(self: *RuntimeEnv) void { pub fn free(self: *RuntimeEnv) void {
@ -172,41 +212,35 @@ pub const RuntimeEnv = struct {
self.ref_values.free(); self.ref_values.free();
} }
pub fn get_arg(self: *RuntimeEnv, index: usize) RuntimeError!?*const RuntimeRef { pub fn get_local(self: *RuntimeEnv, local: u8) RuntimeError!?*RuntimeRef {
const frame = self.frames.peek() orelse return self.raise(error.IllegalState, "stack underflow"); if (local >= self.local_refs.values.len) {
return self.raise(error.IllegalState, "out of bounds local get");
if (index >= frame.arg_count) {
return null;
} }
return self.local_refs.values[frame.locals_top - (1 + index)];
}
pub fn local_get(self: *RuntimeEnv, local: u8) ?*RuntimeRef {
return self.local_refs.values[local]; return self.local_refs.values[local];
} }
pub fn local_pop(self: *RuntimeEnv) ?*RuntimeRef { pub fn pop_local(self: *RuntimeEnv) RuntimeError!?*RuntimeRef {
const ref = self.local_refs.pop(); return self.local_refs.pop() orelse self.raise(error.IllegalState, "stack underflow");
coral.debug.assert(ref != null);
return ref.?;
} }
pub fn local_push_ref(self: *RuntimeEnv, ref: ?*RuntimeRef) RuntimeError!void { pub fn push_boolean(self: *RuntimeEnv, boolean: bool) RuntimeError!void {
return self.local_refs.push_one(self.acquire(ref));
}
pub fn local_push_boolean(self: *RuntimeEnv, boolean: bool) RuntimeError!void {
return self.local_refs.push_one(try self.new_boolean(boolean)); return self.local_refs.push_one(try self.new_boolean(boolean));
} }
pub fn local_push_number(self: *RuntimeEnv, number: Float) RuntimeError!void { pub fn push_number(self: *RuntimeEnv, number: Float) RuntimeError!void {
return self.local_refs.push_one(try self.new_number(number)); return self.local_refs.push_one(try self.new_number(number));
} }
pub fn local_set(self: *RuntimeEnv, local: u8, value: ?*RuntimeRef) void { pub fn push_ref(self: *RuntimeEnv, ref: ?*RuntimeRef) RuntimeError!void {
return self.local_refs.push_one(self.acquire(ref));
}
pub fn set_local(self: *RuntimeEnv, local: u8, value: ?*RuntimeRef) RuntimeError!void {
if (local >= self.local_refs.values.len) {
return self.raise(error.IllegalState, "out of bounds local set");
}
self.local_refs.values[local] = self.acquire(value); self.local_refs.values[local] = self.acquire(value);
} }
@ -277,12 +311,13 @@ pub const RuntimeEnv = struct {
return error_value; return error_value;
} }
pub fn syscaller(self: *RuntimeEnv, name: []const coral.io.Byte) RuntimeError!Syscaller { pub fn syscaller(self: *RuntimeEnv, name: []const coral.io.Byte) RuntimeError!Caller {
return self.syscallers.lookup(name) orelse self.raise(error.BadOperation, "attempt to call undefined syscall"); return self.syscallers.lookup(name) orelse self.raise(error.BadOperation, "attempt to call undefined syscall");
} }
pub fn unbox(self: *RuntimeEnv, ref: ?*const RuntimeRef) Unboxed { pub fn unbox(self: *RuntimeEnv, ref: ?*const RuntimeRef) Any {
const ref_data = self.ref_values.lookup(@intFromPtr(ref orelse return .nil)); if (ref) |live_ref| {
const ref_data = self.ref_values.lookup(@intFromPtr(live_ref));
coral.debug.assert(ref_data != null); coral.debug.assert(ref_data != null);
@ -295,32 +330,17 @@ pub const RuntimeEnv = struct {
}; };
} }
pub fn unbox_dynamic(self: *RuntimeEnv, ref: ?*const RuntimeRef) RuntimeError![]const coral.io.Byte { return .nil;
if (ref) |live_ref| {
const ref_data = self.ref_values.lookup(@intFromPtr(live_ref));
coral.debug.assert(ref_data != null);
if (ref_data.?.object == .dynamic) {
return ref_data.?.object.dynamic;
}
} }
return self.raise(error.TypeMismatch, "expected dynamic"); pub fn view_arg(self: *RuntimeEnv, index: usize) RuntimeError!?*const RuntimeRef {
const frame = self.frames.peek() orelse return self.raise(error.IllegalState, "stack underflow");
if (index >= frame.arg_count) {
return null;
} }
pub fn unbox_string(self: *RuntimeEnv, ref: ?*const RuntimeRef) RuntimeError![]const coral.io.Byte { return self.local_refs.values[frame.locals_top - (1 + index)];
if (ref) |live_ref| {
const ref_data = self.ref_values.lookup(@intFromPtr(live_ref));
coral.debug.assert(ref_data != null);
if (ref_data.?.object == .string) {
return ref_data.?.object.string;
}
}
return self.raise(error.TypeMismatch, "expected string");
} }
}; };
@ -329,13 +349,10 @@ pub const RuntimeError = coral.io.AllocationError || error {
TypeMismatch, TypeMismatch,
BadOperation, BadOperation,
BadSyntax, BadSyntax,
Assertion,
}; };
pub const RuntimeRef = opaque {}; pub const RuntimeRef = opaque {};
pub const Syscaller = coral.io.Generator(RuntimeError!?*RuntimeRef, *RuntimeEnv);
pub const TestContext = struct { pub const TestContext = struct {
env: *RuntimeEnv, env: *RuntimeEnv,
userdata: []const coral.io.Byte, userdata: []const coral.io.Byte,
@ -344,15 +361,15 @@ pub const TestContext = struct {
pub const Typeinfo = struct { pub const Typeinfo = struct {
name: []const coral.io.Byte, name: []const coral.io.Byte,
call: *const fn (context: CallContext) RuntimeError!?*RuntimeRef = default_call, call: *const fn (env: *RuntimeEnv) RuntimeError!?*RuntimeRef = default_call,
clean: *const fn (userdata: []coral.io.Byte) void = default_clean, clean: *const fn (userdata: []coral.io.Byte) void = default_clean,
get: *const fn (context: IndexContext) RuntimeError!?*RuntimeRef = default_get, get: *const fn (context: IndexContext) RuntimeError!?*RuntimeRef = default_get,
set: *const fn (context: IndexContext, value: ?*const RuntimeRef) RuntimeError!void = default_set, set: *const fn (context: IndexContext, value: ?*const RuntimeRef) RuntimeError!void = default_set,
test_difference: *const fn (context: TestContext) RuntimeError!Float = default_test_difference, test_difference: *const fn (context: TestContext) RuntimeError!Float = default_test_difference,
test_equality: *const fn (context: TestContext) RuntimeError!bool = default_test_equality, test_equality: *const fn (context: TestContext) RuntimeError!bool = default_test_equality,
fn default_call(context: CallContext) RuntimeError!?*RuntimeRef { fn default_call(env: *RuntimeEnv) RuntimeError!?*RuntimeRef {
return context.env.raise(error.TypeMismatch, "object is not callable"); return env.raise(error.TypeMismatch, "object is not callable");
} }
fn default_clean(_: []coral.io.Byte) void { fn default_clean(_: []coral.io.Byte) void {
@ -379,32 +396,11 @@ pub const Typeinfo = struct {
} }
}; };
pub const Unboxed = union (enum) {
nil,
boolean: bool,
number: Float,
string: []const coral.io.Byte,
dynamic: *const DynamicObject,
pub fn expect_dynamic(self: Unboxed, env: *RuntimeEnv) RuntimeError!*const DynamicObject {
return switch (self) {
.dynamic => |dynamic| dynamic,
else => env.raise(error.TypeMismatch, "expected dynamic"),
};
}
};
pub fn assert(env: *RuntimeEnv, condition: bool, message: []const coral.io.Byte) RuntimeError!void {
if (!condition) {
return env.raise(error.Assertion, message);
}
}
pub fn call( pub fn call(
env: *RuntimeEnv, env: *RuntimeEnv,
caller_ref: ?*const RuntimeRef, caller_ref: ?*const RuntimeRef,
callable_ref: ?*const RuntimeRef, callable_ref: ?*const RuntimeRef,
arg_refs: Args, arg_refs: []const ?*const RuntimeRef,
) RuntimeError!?*RuntimeRef { ) RuntimeError!?*RuntimeRef {
for (arg_refs) |arg_ref| { for (arg_refs) |arg_ref| {
try env.local_push_ref(arg_ref); try env.local_push_ref(arg_ref);
@ -428,7 +424,7 @@ pub fn get(
indexable_ref: ?*const RuntimeRef, indexable_ref: ?*const RuntimeRef,
index_ref: ?*const RuntimeRef, index_ref: ?*const RuntimeRef,
) RuntimeError!?*RuntimeRef { ) RuntimeError!?*RuntimeRef {
const dynamic = try env.unbox(indexable_ref).expect_dynamic(env); const dynamic = try unbox_dynamic(env, indexable_ref);
return dynamic.typeinfo.get(.{ return dynamic.typeinfo.get(.{
.userdata = dynamic.userdata, .userdata = dynamic.userdata,
@ -437,7 +433,11 @@ pub fn get(
}); });
} }
pub fn get_field(env: *RuntimeEnv, indexable_ref: ?*const RuntimeRef, field_name: []const coral.io.Byte) RuntimeError!?*RuntimeRef { pub fn get_field(
env: *RuntimeEnv,
indexable_ref: ?*const RuntimeRef,
field_name: []const coral.io.Byte,
) RuntimeError!?*RuntimeRef {
const field_name_ref = try env.new_string(field_name); const field_name_ref = try env.new_string(field_name);
defer env.discard(field_name_ref); defer env.discard(field_name_ref);
@ -451,7 +451,7 @@ pub fn set(
index_ref: ?*const RuntimeRef, index_ref: ?*const RuntimeRef,
value_ref: ?*const RuntimeRef, value_ref: ?*const RuntimeRef,
) RuntimeError!void { ) RuntimeError!void {
const dynamic = try env.unbox(indexable_ref).expect_dynamic(env); const dynamic = try unbox_dynamic(env, indexable_ref);
return dynamic.typeinfo.set(.{ return dynamic.typeinfo.set(.{
.userdata = dynamic.userdata, .userdata = dynamic.userdata,
@ -460,7 +460,12 @@ pub fn set(
}, value_ref); }, value_ref);
} }
pub fn set_field(env: *RuntimeEnv, indexable_ref: ?*const RuntimeRef, field_name: []const coral.io.Byte, value_ref: ?*const RuntimeRef) RuntimeError!void { pub fn set_field(
env: *RuntimeEnv,
indexable_ref: ?*const RuntimeRef,
field_name: []const coral.io.Byte,
value_ref: ?*const RuntimeRef,
) RuntimeError!void {
const field_name_ref = try env.new_string(field_name); const field_name_ref = try env.new_string(field_name);
defer env.discard(field_name_ref); defer env.discard(field_name_ref);
@ -525,3 +530,11 @@ pub fn test_equality(env: *RuntimeEnv, lhs_ref: ?*const RuntimeRef, rhs_ref: ?*c
}), }),
}; };
} }
pub fn unbox_dynamic(env: *RuntimeEnv, ref: ?*const RuntimeRef) RuntimeError!*DynamicObject {
return env.unbox(ref).expect_dynamic() orelse env.raise(error.TypeMismatch, "expected dynamic object");
}
pub fn unbox_string(env: *RuntimeEnv, ref: ?*const RuntimeRef) RuntimeError![]const coral.io.Byte {
return env.unbox(ref).expect_string() orelse env.raise(error.TypeMismatch, "expected string object");
}

225
source/ona/kym/Chunk.zig
View File

@ -206,6 +206,10 @@ pub fn append_opcode(self: *Self, opcode: Opcode) kym.RuntimeError!void {
return self.opcodes.push_one(opcode); return self.opcodes.push_one(opcode);
} }
pub fn as_caller(self: *Self) kym.Caller {
return kym.Caller.bind(Self, self, execute);
}
pub fn compile_ast(self: *Self, ast: Ast) kym.RuntimeError!void { pub fn compile_ast(self: *Self, ast: Ast) kym.RuntimeError!void {
self.free(); self.free();
@ -253,250 +257,239 @@ pub fn declare_constant_string(self: *Self, constant: []const coral.io.Byte) kym
return @intCast(tail); return @intCast(tail);
} }
pub fn execute(self: *Self, name: []const coral.io.Byte) kym.RuntimeError!?*kym.RuntimeRef { fn execute(self: *Self, env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef {
try self.env.frame_push(name, 0);
defer self.env.frame_pop();
for (self.opcodes.values) |opcode| { for (self.opcodes.values) |opcode| {
switch (opcode) { switch (opcode) {
.pop => self.env.discard(self.env.local_pop()), .pop => env.discard(try env.pop_local()),
.push_nil => try self.env.local_push_ref(null), .push_nil => try env.push_ref(null),
.push_true => try self.env.local_push_boolean(true), .push_true => try env.push_boolean(true),
.push_false => try self.env.local_push_boolean(false), .push_false => try env.push_boolean(false),
.push_const => |constant| try self.env.local_push_ref(self.constant_refs.values[constant]), .push_const => |constant| try env.push_ref(self.constant_refs.values[constant]),
.push_table => |field_count| { .push_table => |field_count| {
const table_ref = try kym.new_table(self.env); const table_ref = try kym.new_table(env);
defer self.env.discard(table_ref); defer env.discard(table_ref);
{ {
const dynamic = try self.env.unbox(table_ref).expect_dynamic(self.env); const dynamic = try kym.unbox_dynamic(env, table_ref);
var popped = @as(usize, 0); var popped = @as(usize, 0);
while (popped < field_count) : (popped += 1) { while (popped < field_count) : (popped += 1) {
const index_ref = self.env.local_pop(); const index_ref = try env.pop_local();
const value_ref = self.env.local_pop();
defer env.discard(index_ref);
const value_ref = try env.pop_local();
defer env.discard(value_ref);
try dynamic.typeinfo.set(.{ try dynamic.typeinfo.set(.{
.userdata = dynamic.userdata, .userdata = dynamic.userdata,
.env = self.env, .env = env,
.index_ref = index_ref, .index_ref = index_ref,
}, value_ref); }, value_ref);
} }
} }
try self.env.local_push_ref(table_ref); try env.push_ref(table_ref);
}, },
.push_local => |local| { .push_local => |local| {
const ref = self.env.local_get(local); const ref = try env.get_local(local);
defer self.env.discard(ref); defer env.discard(ref);
try self.env.local_push_ref(ref); try env.push_ref(ref);
}, },
.set_local => |local| { .set_local => |local| {
const ref = self.env.local_pop(); const ref = try env.pop_local();
defer self.env.discard(ref); defer env.discard(ref);
self.env.local_set(local, ref); try env.set_local(local, ref);
}, },
.call => |arg_count| { .call => |arg_count| {
const callable_ref = self.env.local_pop(); const result_ref = call: {
const callable_ref = try env.pop_local();
defer self.env.discard(callable_ref); defer env.discard(callable_ref);
try self.env.frame_push("", arg_count); break: call try env.call("", arg_count, (try kym.unbox_dynamic(env, callable_ref)).as_caller());
};
defer self.env.frame_pop(); defer env.discard(result_ref);
const dynamic = try self.env.unbox(callable_ref).expect_dynamic(self.env); try env.push_ref(result_ref);
const result_ref = try dynamic.typeinfo.call(.{
.env = self.env,
.caller = null,
.userdata = dynamic.userdata,
});
defer self.env.discard(result_ref);
try self.env.local_push_ref(result_ref);
}, },
.syscall => |arg_count| { .syscall => |arg_count| {
const identifier_ref = self.env.local_pop(); const result_ref = call: {
const identifier_ref = try env.pop_local();
defer self.env.discard(identifier_ref); defer env.discard(identifier_ref);
const identifier = try self.env.unbox_string(identifier_ref); const identifier = try kym.unbox_string(env, identifier_ref);
try self.env.frame_push(identifier, arg_count); break: call try env.call(identifier, arg_count, try env.syscaller(identifier));
};
errdefer self.env.frame_pop(); defer env.discard(result_ref);
const result_ref = try (try self.env.syscaller(identifier)).invoke(self.env); try env.push_ref(result_ref);
defer self.env.discard(result_ref);
self.env.frame_pop();
try self.env.local_push_ref(result_ref);
}, },
.neg => try self.env.local_push_number(switch (self.env.unbox(self.env.local_pop())) { .neg => try env.push_number(switch (env.unbox(try env.pop_local())) {
.number => |number| -number, .number => |number| -number,
else => return self.env.raise(error.TypeMismatch, "object is not scalar negatable"), else => return env.raise(error.TypeMismatch, "object is not scalar negatable"),
}), }),
.not => try self.env.local_push_boolean(switch (self.env.unbox(self.env.local_pop())) { .not => try env.push_boolean(switch (env.unbox(try env.pop_local())) {
.boolean => |boolean| !boolean, .boolean => |boolean| !boolean,
else => return self.env.raise(error.TypeMismatch, "object is not boolean negatable"), else => return env.raise(error.TypeMismatch, "object is not boolean negatable"),
}), }),
.add => { .add => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_ref(switch (self.env.unbox(lhs_ref)) { try env.push_ref(try switch (env.unbox(lhs_ref)) {
.number => |lhs_number| switch (self.env.unbox(rhs_ref)) { .number => |lhs_number| switch (env.unbox(rhs_ref)) {
.number => |rhs_number| try self.env.new_number(lhs_number + rhs_number), .number => |rhs_number| env.new_number(lhs_number + rhs_number),
else => return self.env.raise(error.TypeMismatch, "right-hand object is not addable"), else => return env.raise(error.TypeMismatch, "right-hand object is not addable"),
}, },
else => return self.env.raise(error.TypeMismatch, "left-hand object is not addable"), else => return env.raise(error.TypeMismatch, "left-hand object is not addable"),
}); });
}, },
.sub => { .sub => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_ref(switch (self.env.unbox(lhs_ref)) { try env.push_ref(try switch (env.unbox(lhs_ref)) {
.number => |lhs_number| switch (self.env.unbox(rhs_ref)) { .number => |lhs_number| switch (env.unbox(rhs_ref)) {
.number => |rhs_number| try self.env.new_number(lhs_number - rhs_number), .number => |rhs_number| env.new_number(lhs_number - rhs_number),
else => return self.env.raise(error.TypeMismatch, "right-hand object is not subtractable"), else => return env.raise(error.TypeMismatch, "right-hand object is not subtractable"),
}, },
else => return self.env.raise(error.TypeMismatch, "left-hand object is not subtractable"), else => return env.raise(error.TypeMismatch, "left-hand object is not subtractable"),
}); });
}, },
.mul => { .mul => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_ref(switch (self.env.unbox(lhs_ref)) { try env.push_ref(try switch (env.unbox(lhs_ref)) {
.number => |lhs_number| switch (self.env.unbox(rhs_ref)) { .number => |lhs_number| switch (env.unbox(rhs_ref)) {
.number => |rhs_number| try self.env.new_number(lhs_number * rhs_number), .number => |rhs_number| env.new_number(lhs_number * rhs_number),
else => return self.env.raise(error.TypeMismatch, "right-hand object is not multiplyable"), else => return env.raise(error.TypeMismatch, "right-hand object is not multiplyable"),
}, },
else => return self.env.raise(error.TypeMismatch, "left-hand object is not multiplyable"), else => return env.raise(error.TypeMismatch, "left-hand object is not multiplyable"),
}); });
}, },
.div => { .div => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_ref(switch (self.env.unbox(lhs_ref)) { try env.push_ref(try switch (env.unbox(lhs_ref)) {
.number => |lhs_number| switch (self.env.unbox(rhs_ref)) { .number => |lhs_number| switch (env.unbox(rhs_ref)) {
.number => |rhs_number| try self.env.new_number(lhs_number / rhs_number), .number => |rhs_number| env.new_number(lhs_number / rhs_number),
else => return self.env.raise(error.TypeMismatch, "right-hand object is not divisable"), else => return env.raise(error.TypeMismatch, "right-hand object is not divisable"),
}, },
else => return self.env.raise(error.TypeMismatch, "left-hand object is not divisable"), else => return env.raise(error.TypeMismatch, "left-hand object is not divisable"),
}); });
}, },
.eql => { .eql => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_boolean(try kym.test_equality(self.env, lhs_ref, rhs_ref)); try env.push_boolean(try kym.test_equality(env, lhs_ref, rhs_ref));
}, },
.cgt => { .cgt => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_boolean(try kym.test_difference(self.env, lhs_ref, rhs_ref) > 0); try env.push_boolean(try kym.test_difference(env, lhs_ref, rhs_ref) > 0);
}, },
.clt => { .clt => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_boolean(try kym.test_difference(self.env, lhs_ref, rhs_ref) < 0); try env.push_boolean(try kym.test_difference(env, lhs_ref, rhs_ref) < 0);
}, },
.cge => { .cge => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_boolean(try kym.test_difference(self.env, lhs_ref, rhs_ref) >= 0); try env.push_boolean(try kym.test_difference(env, lhs_ref, rhs_ref) >= 0);
}, },
.cle => { .cle => {
const rhs_ref = self.env.local_pop(); const rhs_ref = try env.pop_local();
defer self.env.discard(rhs_ref); defer env.discard(rhs_ref);
const lhs_ref = self.env.local_pop(); const lhs_ref = try env.pop_local();
defer self.env.discard(lhs_ref); defer env.discard(lhs_ref);
try self.env.local_push_boolean(try kym.test_difference(self.env, lhs_ref, rhs_ref) <= 0); try env.push_boolean(try kym.test_difference(env, lhs_ref, rhs_ref) <= 0);
}, },
} }
} }
return self.env.local_pop(); return env.pop_local();
} }
pub fn free(self: *Self) void { pub fn free(self: *Self) void {

12
source/ona/ona.zig
View File

@ -21,19 +21,19 @@ fn kym_handle_errors(info: kym.ErrorInfo) void {
} }
fn kym_log_info(env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef { fn kym_log_info(env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef {
app.log_info(try env.unbox_string(try env.get_arg(0))); app.log_info(try kym.unbox_string(env, try env.view_arg(0)));
return null; return null;
} }
fn kym_log_warn(env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef { fn kym_log_warn(env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef {
app.log_warn(try env.unbox_string(try env.get_arg(0))); app.log_warn(try kym.unbox_string(env, try env.view_arg(0)));
return null; return null;
} }
fn kym_log_fail(env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef { fn kym_log_fail(env: *kym.RuntimeEnv) kym.RuntimeError!?*kym.RuntimeRef {
app.log_fail(try env.unbox_string(try env.get_arg(0))); app.log_fail(try kym.unbox_string(env, try env.view_arg(0)));
return null; return null;
} }
@ -43,6 +43,8 @@ fn last_sdl_error() [:0]const u8 {
} }
pub fn run_app(file_access: file.Access) void { pub fn run_app(file_access: file.Access) void {
defer heap.trace_leaks();
if (ext.SDL_Init(ext.SDL_INIT_EVERYTHING) != 0) { if (ext.SDL_Init(ext.SDL_INIT_EVERYTHING) != 0) {
return app.log_fail(last_sdl_error()); return app.log_fail(last_sdl_error());
} }
@ -58,11 +60,11 @@ pub fn run_app(file_access: file.Access) void {
script_env.bind_syscalls(&.{ script_env.bind_syscalls(&.{
.{ .{
.name = "log_info", .name = "log_info",
.caller = kym.Syscaller.from(kym_log_info), .caller = kym.Caller.from(kym_log_info),
}, },
.{ .{
.name = "log_fail", .name = "log_fail",
.caller = kym.Syscaller.from(kym_log_fail), .caller = kym.Caller.from(kym_log_fail),
}, },
}) catch { }) catch {
return app.log_fail("failed to initialize script runtime"); return app.log_fail("failed to initialize script runtime");