self-hosted: generate zig IR for simple function
no tests for this yet. I think the quickest path to testing will be creating the .o files and linking with libc, executing, and then comparing output.
This commit is contained in:
Andrew Kelley
parent
ce11d6d16c
commit
687bd92f9c
96
src-self-hosted/decl.zig
Normal file
96
src-self-hosted/decl.zig
Normal file
@ -0,0 +1,96 @@
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const std = @import("std");
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const Allocator = mem.Allocator;
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const mem = std.mem;
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const ast = std.zig.ast;
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const Visib = @import("visib.zig").Visib;
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const ParsedFile = @import("parsed_file.zig").ParsedFile;
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const event = std.event;
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const Value = @import("value.zig").Value;
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const Token = std.zig.Token;
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const errmsg = @import("errmsg.zig");
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const Scope = @import("scope.zig").Scope;
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const Module = @import("module.zig").Module;
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pub const Decl = struct {
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id: Id,
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name: []const u8,
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visib: Visib,
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resolution: event.Future(Module.BuildError!void),
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resolution_in_progress: u8,
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parsed_file: *ParsedFile,
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parent_scope: *Scope,
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pub const Table = std.HashMap([]const u8, *Decl, mem.hash_slice_u8, mem.eql_slice_u8);
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pub fn isExported(base: *const Decl, tree: *ast.Tree) bool {
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switch (base.id) {
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Id.Fn => {
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const fn_decl = @fieldParentPtr(Fn, "base", base);
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return fn_decl.isExported(tree);
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},
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else => return false,
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}
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}
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pub fn getSpan(base: *const Decl) errmsg.Span {
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switch (base.id) {
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Id.Fn => {
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const fn_decl = @fieldParentPtr(Fn, "base", base);
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const fn_proto = fn_decl.fn_proto;
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const start = fn_proto.fn_token;
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const end = fn_proto.name_token orelse start;
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return errmsg.Span{
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.first = start,
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.last = end + 1,
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};
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},
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else => @panic("TODO"),
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}
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}
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pub const Id = enum {
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Var,
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Fn,
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CompTime,
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};
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pub const Var = struct {
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base: Decl,
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};
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pub const Fn = struct {
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base: Decl,
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value: Val,
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fn_proto: *const ast.Node.FnProto,
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// TODO https://github.com/ziglang/zig/issues/683 and then make this anonymous
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pub const Val = union {
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Unresolved: void,
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Ok: *Value.Fn,
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};
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pub fn externLibName(self: Fn, tree: *ast.Tree) ?[]const u8 {
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return if (self.fn_proto.extern_export_inline_token) |tok_index| x: {
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const token = tree.tokens.at(tok_index);
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break :x switch (token.id) {
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Token.Id.Extern => tree.tokenSlicePtr(token),
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else => null,
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};
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} else null;
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}
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pub fn isExported(self: Fn, tree: *ast.Tree) bool {
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if (self.fn_proto.extern_export_inline_token) |tok_index| {
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const token = tree.tokens.at(tok_index);
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return token.id == Token.Id.Keyword_export;
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} else {
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return false;
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}
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}
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};
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pub const CompTime = struct {
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base: Decl,
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};
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};
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@ -1,111 +1,656 @@
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const std = @import("std");
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const builtin = @import("builtin");
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const Module = @import("module.zig").Module;
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const Scope = @import("scope.zig").Scope;
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const ast = std.zig.ast;
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const Allocator = std.mem.Allocator;
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const Value = @import("value.zig").Value;
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const Type = Value.Type;
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const assert = std.debug.assert;
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const Token = std.zig.Token;
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const ParsedFile = @import("parsed_file.zig").ParsedFile;
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pub const LVal = enum {
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None,
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Ptr,
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};
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pub const Mut = enum {
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Mut,
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Const,
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};
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pub const Volatility = enum {
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NonVolatile,
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Volatile,
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};
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pub const IrVal = union(enum) {
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Unknown,
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Known: *Value,
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pub fn dump(self: IrVal) void {
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switch (self) {
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IrVal.Unknown => std.debug.warn("Unknown"),
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IrVal.Known => |value| {
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std.debug.warn("Known(");
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value.dump();
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std.debug.warn(")");
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},
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}
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}
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};
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pub const Instruction = struct {
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id: Id,
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scope: *Scope,
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debug_id: usize,
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val: IrVal,
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/// true if this instruction was generated by zig and not from user code
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is_generated: bool,
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pub fn cast(base: *Instruction, comptime T: type) ?*T {
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if (base.id == comptime typeToId(T)) {
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return @fieldParentPtr(T, "base", base);
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}
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return null;
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}
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pub fn typeToId(comptime T: type) Id {
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comptime var i = 0;
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inline while (i < @memberCount(Id)) : (i += 1) {
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if (T == @field(Instruction, @memberName(Id, i))) {
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return @field(Id, @memberName(Id, i));
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}
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}
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unreachable;
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}
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pub fn dump(base: *const Instruction) void {
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comptime var i = 0;
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inline while (i < @memberCount(Id)) : (i += 1) {
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if (base.id == @field(Id, @memberName(Id, i))) {
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const T = @field(Instruction, @memberName(Id, i));
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std.debug.warn("#{} = {}(", base.debug_id, @tagName(base.id));
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@fieldParentPtr(T, "base", base).dump();
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std.debug.warn(")");
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return;
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}
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}
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unreachable;
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}
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pub fn setGenerated(base: *Instruction) void {
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base.is_generated = true;
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}
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pub fn isNoReturn(base: *const Instruction) bool {
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switch (base.val) {
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IrVal.Unknown => return false,
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IrVal.Known => |x| return x.typeof.id == Type.Id.NoReturn,
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}
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}
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pub const Id = enum {
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Br,
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CondBr,
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SwitchBr,
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SwitchVar,
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SwitchTarget,
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Phi,
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UnOp,
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BinOp,
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DeclVar,
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LoadPtr,
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StorePtr,
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FieldPtr,
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StructFieldPtr,
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UnionFieldPtr,
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ElemPtr,
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VarPtr,
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Call,
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Const,
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Return,
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Cast,
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ContainerInitList,
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ContainerInitFields,
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StructInit,
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UnionInit,
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Unreachable,
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TypeOf,
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ToPtrType,
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PtrTypeChild,
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SetRuntimeSafety,
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SetFloatMode,
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ArrayType,
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SliceType,
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Asm,
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SizeOf,
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TestNonNull,
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UnwrapMaybe,
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MaybeWrap,
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UnionTag,
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Clz,
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Ctz,
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Import,
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CImport,
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CInclude,
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CDefine,
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CUndef,
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ArrayLen,
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Const,
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Ref,
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MinValue,
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MaxValue,
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CompileErr,
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CompileLog,
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ErrName,
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EmbedFile,
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Cmpxchg,
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Fence,
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Truncate,
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IntType,
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BoolNot,
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Memset,
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Memcpy,
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Slice,
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MemberCount,
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MemberType,
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MemberName,
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Breakpoint,
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ReturnAddress,
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FrameAddress,
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AlignOf,
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OverflowOp,
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TestErr,
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UnwrapErrCode,
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UnwrapErrPayload,
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ErrWrapCode,
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ErrWrapPayload,
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FnProto,
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TestComptime,
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PtrCast,
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BitCast,
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WidenOrShorten,
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IntToPtr,
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PtrToInt,
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IntToEnum,
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IntToErr,
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ErrToInt,
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CheckSwitchProngs,
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CheckStatementIsVoid,
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TypeName,
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CanImplicitCast,
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DeclRef,
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Panic,
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TagName,
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TagType,
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FieldParentPtr,
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OffsetOf,
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TypeId,
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SetEvalBranchQuota,
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PtrTypeOf,
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AlignCast,
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OpaqueType,
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SetAlignStack,
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ArgType,
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Export,
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DeclVar,
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CheckVoidStmt,
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Phi,
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Br,
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};
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pub const Const = struct {
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base: Instruction,
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pub fn buildBool(irb: *Builder, scope: *Scope, val: bool) !*Instruction {
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const inst = try irb.arena().create(Const{
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.base = Instruction{
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.id = Instruction.Id.Const,
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.is_generated = false,
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.scope = scope,
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.debug_id = irb.next_debug_id,
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.val = IrVal{ .Known = &Value.Bool.get(irb.module, val).base },
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},
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
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pub fn buildVoid(irb: *Builder, scope: *Scope, is_generated: bool) !*Instruction {
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const inst = try irb.arena().create(Const{
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.base = Instruction{
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.id = Instruction.Id.Const,
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.is_generated = is_generated,
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.scope = scope,
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.debug_id = irb.next_debug_id,
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.val = IrVal{ .Known = &Value.Void.get(irb.module).base },
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},
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
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pub fn dump(inst: *const Const) void {
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inst.base.val.Known.dump();
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}
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};
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pub const Return = struct {
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base: Instruction,
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return_value: *Instruction,
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pub fn build(irb: *Builder, scope: *Scope, return_value: *Instruction) !*Instruction {
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const inst = try irb.arena().create(Return{
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.base = Instruction{
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.id = Instruction.Id.Return,
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.is_generated = false,
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.scope = scope,
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.debug_id = irb.next_debug_id,
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.val = IrVal{ .Known = &Value.Void.get(irb.module).base },
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},
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.return_value = return_value,
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
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pub fn dump(inst: *const Return) void {
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std.debug.warn("#{}", inst.return_value.debug_id);
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}
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};
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pub const Ref = struct {
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base: Instruction,
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target: *Instruction,
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mut: Mut,
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volatility: Volatility,
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pub fn build(
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irb: *Builder,
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scope: *Scope,
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target: *Instruction,
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mut: Mut,
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volatility: Volatility,
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) !*Instruction {
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const inst = try irb.arena().create(Ref{
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.base = Instruction{
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.id = Instruction.Id.Ref,
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.is_generated = false,
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.scope = scope,
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.debug_id = irb.next_debug_id,
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.val = IrVal.Unknown,
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},
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.target = target,
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.mut = mut,
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.volatility = volatility,
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
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pub fn dump(inst: *const Ref) void {}
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};
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pub const DeclVar = struct {
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base: Instruction,
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variable: *Variable,
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pub fn dump(inst: *const DeclVar) void {}
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};
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pub const CheckVoidStmt = struct {
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base: Instruction,
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target: *Instruction,
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pub fn build(
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irb: *Builder,
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scope: *Scope,
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target: *Instruction,
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) !*Instruction {
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const inst = try irb.arena().create(CheckVoidStmt{
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.base = Instruction{
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.id = Instruction.Id.CheckVoidStmt,
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.is_generated = true,
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.scope = scope,
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.debug_id = irb.next_debug_id,
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.val = IrVal{ .Known = &Value.Void.get(irb.module).base },
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},
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.target = target,
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
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pub fn dump(inst: *const CheckVoidStmt) void {}
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};
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pub const Phi = struct {
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base: Instruction,
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incoming_blocks: []*BasicBlock,
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incoming_values: []*Instruction,
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pub fn build(
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irb: *Builder,
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scope: *Scope,
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incoming_blocks: []*BasicBlock,
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incoming_values: []*Instruction,
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) !*Instruction {
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const inst = try irb.arena().create(Phi{
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.base = Instruction{
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.id = Instruction.Id.Phi,
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.is_generated = false,
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.scope = scope,
|
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.debug_id = irb.next_debug_id,
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.val = IrVal.Unknown,
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},
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.incoming_blocks = incoming_blocks,
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.incoming_values = incoming_values,
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
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pub fn dump(inst: *const Phi) void {}
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};
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pub const Br = struct {
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base: Instruction,
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dest_block: *BasicBlock,
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is_comptime: *Instruction,
|
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|
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pub fn build(
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irb: *Builder,
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scope: *Scope,
|
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dest_block: *BasicBlock,
|
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is_comptime: *Instruction,
|
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) !*Instruction {
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const inst = try irb.arena().create(Br{
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.base = Instruction{
|
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.id = Instruction.Id.Br,
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.is_generated = false,
|
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.scope = scope,
|
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.debug_id = irb.next_debug_id,
|
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.val = IrVal{ .Known = &Value.NoReturn.get(irb.module).base },
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},
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.dest_block = dest_block,
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.is_comptime = is_comptime,
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});
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irb.next_debug_id += 1;
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try irb.current_basic_block.instruction_list.append(&inst.base);
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return &inst.base;
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}
|
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pub fn dump(inst: *const Br) void {}
|
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};
|
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};
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|
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pub const Variable = struct {
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child_scope: *Scope,
|
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};
|
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|
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pub const BasicBlock = struct {
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ref_count: usize,
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name_hint: []const u8,
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debug_id: usize,
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scope: *Scope,
|
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instruction_list: std.ArrayList(*Instruction),
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|
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pub fn ref(self: *BasicBlock) void {
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self.ref_count += 1;
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}
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};
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/// Stuff that survives longer than Builder
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pub const Code = struct {
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basic_block_list: std.ArrayList(*BasicBlock),
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arena: std.heap.ArenaAllocator,
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|
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/// allocator is module.a()
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pub fn destroy(self: *Code, allocator: *Allocator) void {
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self.arena.deinit();
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allocator.destroy(self);
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}
|
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|
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pub fn dump(self: *Code) void {
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var bb_i: usize = 0;
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for (self.basic_block_list.toSliceConst()) |bb| {
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std.debug.warn("{}_{}:\n", bb.name_hint, bb.debug_id);
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for (bb.instruction_list.toSliceConst()) |instr| {
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std.debug.warn(" ");
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instr.dump();
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std.debug.warn("\n");
|
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}
|
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}
|
||||
}
|
||||
};
|
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|
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pub const Builder = struct {
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module: *Module,
|
||||
code: *Code,
|
||||
current_basic_block: *BasicBlock,
|
||||
next_debug_id: usize,
|
||||
parsed_file: *ParsedFile,
|
||||
is_comptime: bool,
|
||||
|
||||
pub const Error = error{
|
||||
OutOfMemory,
|
||||
Unimplemented,
|
||||
};
|
||||
|
||||
pub fn init(module: *Module, parsed_file: *ParsedFile) !Builder {
|
||||
const code = try module.a().create(Code{
|
||||
.basic_block_list = undefined,
|
||||
.arena = std.heap.ArenaAllocator.init(module.a()),
|
||||
});
|
||||
code.basic_block_list = std.ArrayList(*BasicBlock).init(&code.arena.allocator);
|
||||
errdefer code.destroy(module.a());
|
||||
|
||||
return Builder{
|
||||
.module = module,
|
||||
.parsed_file = parsed_file,
|
||||
.current_basic_block = undefined,
|
||||
.code = code,
|
||||
.next_debug_id = 0,
|
||||
.is_comptime = false,
|
||||
};
|
||||
}
|
||||
|
||||
pub fn abort(self: *Builder) void {
|
||||
self.code.destroy(self.module.a());
|
||||
}
|
||||
|
||||
/// Call code.destroy() when done
|
||||
pub fn finish(self: *Builder) *Code {
|
||||
return self.code;
|
||||
}
|
||||
|
||||
/// No need to clean up resources thanks to the arena allocator.
|
||||
pub fn createBasicBlock(self: *Builder, scope: *Scope, name_hint: []const u8) !*BasicBlock {
|
||||
const basic_block = try self.arena().create(BasicBlock{
|
||||
.ref_count = 0,
|
||||
.name_hint = name_hint,
|
||||
.debug_id = self.next_debug_id,
|
||||
.scope = scope,
|
||||
.instruction_list = std.ArrayList(*Instruction).init(self.arena()),
|
||||
});
|
||||
self.next_debug_id += 1;
|
||||
return basic_block;
|
||||
}
|
||||
|
||||
pub fn setCursorAtEndAndAppendBlock(self: *Builder, basic_block: *BasicBlock) !void {
|
||||
try self.code.basic_block_list.append(basic_block);
|
||||
self.setCursorAtEnd(basic_block);
|
||||
}
|
||||
|
||||
pub fn setCursorAtEnd(self: *Builder, basic_block: *BasicBlock) void {
|
||||
self.current_basic_block = basic_block;
|
||||
}
|
||||
|
||||
pub fn genNode(irb: *Builder, node: *ast.Node, scope: *Scope, lval: LVal) Error!*Instruction {
|
||||
switch (node.id) {
|
||||
ast.Node.Id.Root => unreachable,
|
||||
ast.Node.Id.Use => unreachable,
|
||||
ast.Node.Id.TestDecl => unreachable,
|
||||
ast.Node.Id.VarDecl => @panic("TODO"),
|
||||
ast.Node.Id.Defer => @panic("TODO"),
|
||||
ast.Node.Id.InfixOp => @panic("TODO"),
|
||||
ast.Node.Id.PrefixOp => @panic("TODO"),
|
||||
ast.Node.Id.SuffixOp => @panic("TODO"),
|
||||
ast.Node.Id.Switch => @panic("TODO"),
|
||||
ast.Node.Id.While => @panic("TODO"),
|
||||
ast.Node.Id.For => @panic("TODO"),
|
||||
ast.Node.Id.If => @panic("TODO"),
|
||||
ast.Node.Id.ControlFlowExpression => return error.Unimplemented,
|
||||
ast.Node.Id.Suspend => @panic("TODO"),
|
||||
ast.Node.Id.VarType => @panic("TODO"),
|
||||
ast.Node.Id.ErrorType => @panic("TODO"),
|
||||
ast.Node.Id.FnProto => @panic("TODO"),
|
||||
ast.Node.Id.PromiseType => @panic("TODO"),
|
||||
ast.Node.Id.IntegerLiteral => @panic("TODO"),
|
||||
ast.Node.Id.FloatLiteral => @panic("TODO"),
|
||||
ast.Node.Id.StringLiteral => @panic("TODO"),
|
||||
ast.Node.Id.MultilineStringLiteral => @panic("TODO"),
|
||||
ast.Node.Id.CharLiteral => @panic("TODO"),
|
||||
ast.Node.Id.BoolLiteral => @panic("TODO"),
|
||||
ast.Node.Id.NullLiteral => @panic("TODO"),
|
||||
ast.Node.Id.UndefinedLiteral => @panic("TODO"),
|
||||
ast.Node.Id.ThisLiteral => @panic("TODO"),
|
||||
ast.Node.Id.Unreachable => @panic("TODO"),
|
||||
ast.Node.Id.Identifier => @panic("TODO"),
|
||||
ast.Node.Id.GroupedExpression => {
|
||||
const grouped_expr = @fieldParentPtr(ast.Node.GroupedExpression, "base", node);
|
||||
return irb.genNode(grouped_expr.expr, scope, lval);
|
||||
},
|
||||
ast.Node.Id.BuiltinCall => @panic("TODO"),
|
||||
ast.Node.Id.ErrorSetDecl => @panic("TODO"),
|
||||
ast.Node.Id.ContainerDecl => @panic("TODO"),
|
||||
ast.Node.Id.Asm => @panic("TODO"),
|
||||
ast.Node.Id.Comptime => @panic("TODO"),
|
||||
ast.Node.Id.Block => {
|
||||
const block = @fieldParentPtr(ast.Node.Block, "base", node);
|
||||
return irb.lvalWrap(scope, try irb.genBlock(block, scope), lval);
|
||||
},
|
||||
ast.Node.Id.DocComment => @panic("TODO"),
|
||||
ast.Node.Id.SwitchCase => @panic("TODO"),
|
||||
ast.Node.Id.SwitchElse => @panic("TODO"),
|
||||
ast.Node.Id.Else => @panic("TODO"),
|
||||
ast.Node.Id.Payload => @panic("TODO"),
|
||||
ast.Node.Id.PointerPayload => @panic("TODO"),
|
||||
ast.Node.Id.PointerIndexPayload => @panic("TODO"),
|
||||
ast.Node.Id.StructField => @panic("TODO"),
|
||||
ast.Node.Id.UnionTag => @panic("TODO"),
|
||||
ast.Node.Id.EnumTag => @panic("TODO"),
|
||||
ast.Node.Id.ErrorTag => @panic("TODO"),
|
||||
ast.Node.Id.AsmInput => @panic("TODO"),
|
||||
ast.Node.Id.AsmOutput => @panic("TODO"),
|
||||
ast.Node.Id.AsyncAttribute => @panic("TODO"),
|
||||
ast.Node.Id.ParamDecl => @panic("TODO"),
|
||||
ast.Node.Id.FieldInitializer => @panic("TODO"),
|
||||
}
|
||||
}
|
||||
|
||||
fn isCompTime(irb: *Builder, target_scope: *Scope) bool {
|
||||
if (irb.is_comptime)
|
||||
return true;
|
||||
|
||||
var scope = target_scope;
|
||||
while (true) {
|
||||
switch (scope.id) {
|
||||
Scope.Id.CompTime => return true,
|
||||
Scope.Id.FnDef => return false,
|
||||
Scope.Id.Decls => unreachable,
|
||||
Scope.Id.Block,
|
||||
Scope.Id.Defer,
|
||||
Scope.Id.DeferExpr,
|
||||
=> scope = scope.parent orelse return false,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn genBlock(irb: *Builder, block: *ast.Node.Block, parent_scope: *Scope) !*Instruction {
|
||||
const block_scope = try Scope.Block.create(irb.module, parent_scope);
|
||||
|
||||
const outer_block_scope = &block_scope.base;
|
||||
var child_scope = outer_block_scope;
|
||||
|
||||
if (parent_scope.findFnDef()) |fndef_scope| {
|
||||
if (fndef_scope.fn_val.child_scope == parent_scope) {
|
||||
fndef_scope.fn_val.block_scope = block_scope;
|
||||
}
|
||||
}
|
||||
|
||||
if (block.statements.len == 0) {
|
||||
// {}
|
||||
return Instruction.Const.buildVoid(irb, child_scope, false);
|
||||
}
|
||||
|
||||
if (block.label) |label| {
|
||||
block_scope.incoming_values = std.ArrayList(*Instruction).init(irb.arena());
|
||||
block_scope.incoming_blocks = std.ArrayList(*BasicBlock).init(irb.arena());
|
||||
block_scope.end_block = try irb.createBasicBlock(parent_scope, "BlockEnd");
|
||||
block_scope.is_comptime = try Instruction.Const.buildBool(irb, parent_scope, irb.isCompTime(parent_scope));
|
||||
}
|
||||
|
||||
var is_continuation_unreachable = false;
|
||||
var noreturn_return_value: ?*Instruction = null;
|
||||
|
||||
var stmt_it = block.statements.iterator(0);
|
||||
while (stmt_it.next()) |statement_node_ptr| {
|
||||
const statement_node = statement_node_ptr.*;
|
||||
|
||||
if (statement_node.cast(ast.Node.Defer)) |defer_node| {
|
||||
// defer starts a new scope
|
||||
const defer_token = irb.parsed_file.tree.tokens.at(defer_node.defer_token);
|
||||
const kind = switch (defer_token.id) {
|
||||
Token.Id.Keyword_defer => Scope.Defer.Kind.ScopeExit,
|
||||
Token.Id.Keyword_errdefer => Scope.Defer.Kind.ErrorExit,
|
||||
else => unreachable,
|
||||
};
|
||||
const defer_expr_scope = try Scope.DeferExpr.create(irb.module, parent_scope, defer_node.expr);
|
||||
const defer_child_scope = try Scope.Defer.create(irb.module, parent_scope, kind, defer_expr_scope);
|
||||
child_scope = &defer_child_scope.base;
|
||||
continue;
|
||||
}
|
||||
const statement_value = try irb.genNode(statement_node, child_scope, LVal.None);
|
||||
|
||||
is_continuation_unreachable = statement_value.isNoReturn();
|
||||
if (is_continuation_unreachable) {
|
||||
// keep the last noreturn statement value around in case we need to return it
|
||||
noreturn_return_value = statement_value;
|
||||
}
|
||||
|
||||
if (statement_value.cast(Instruction.DeclVar)) |decl_var| {
|
||||
// variable declarations start a new scope
|
||||
child_scope = decl_var.variable.child_scope;
|
||||
} else if (!is_continuation_unreachable) {
|
||||
// this statement's value must be void
|
||||
_ = Instruction.CheckVoidStmt.build(irb, child_scope, statement_value);
|
||||
}
|
||||
}
|
||||
|
||||
if (is_continuation_unreachable) {
|
||||
assert(noreturn_return_value != null);
|
||||
if (block.label == null or block_scope.incoming_blocks.len == 0) {
|
||||
return noreturn_return_value.?;
|
||||
}
|
||||
|
||||
try irb.setCursorAtEndAndAppendBlock(block_scope.end_block);
|
||||
return Instruction.Phi.build(
|
||||
irb,
|
||||
parent_scope,
|
||||
block_scope.incoming_blocks.toOwnedSlice(),
|
||||
block_scope.incoming_values.toOwnedSlice(),
|
||||
);
|
||||
}
|
||||
|
||||
if (block.label) |label| {
|
||||
try block_scope.incoming_blocks.append(irb.current_basic_block);
|
||||
try block_scope.incoming_values.append(
|
||||
try Instruction.Const.buildVoid(irb, parent_scope, true),
|
||||
);
|
||||
_ = try irb.genDefersForBlock(child_scope, outer_block_scope, Scope.Defer.Kind.ScopeExit);
|
||||
(try Instruction.Br.build(
|
||||
irb,
|
||||
parent_scope,
|
||||
block_scope.end_block,
|
||||
block_scope.is_comptime,
|
||||
)).setGenerated();
|
||||
try irb.setCursorAtEndAndAppendBlock(block_scope.end_block);
|
||||
return Instruction.Phi.build(
|
||||
irb,
|
||||
parent_scope,
|
||||
block_scope.incoming_blocks.toOwnedSlice(),
|
||||
block_scope.incoming_values.toOwnedSlice(),
|
||||
);
|
||||
}
|
||||
|
||||
_ = try irb.genDefersForBlock(child_scope, outer_block_scope, Scope.Defer.Kind.ScopeExit);
|
||||
const result = try Instruction.Const.buildVoid(irb, child_scope, false);
|
||||
result.setGenerated();
|
||||
return result;
|
||||
}
|
||||
|
||||
fn genDefersForBlock(
|
||||
irb: *Builder,
|
||||
inner_scope: *Scope,
|
||||
outer_scope: *Scope,
|
||||
gen_kind: Scope.Defer.Kind,
|
||||
) !bool {
|
||||
var scope = inner_scope;
|
||||
var is_noreturn = false;
|
||||
while (true) {
|
||||
switch (scope.id) {
|
||||
Scope.Id.Defer => {
|
||||
const defer_scope = @fieldParentPtr(Scope.Defer, "base", scope);
|
||||
const generate = switch (defer_scope.kind) {
|
||||
Scope.Defer.Kind.ScopeExit => true,
|
||||
Scope.Defer.Kind.ErrorExit => gen_kind == Scope.Defer.Kind.ErrorExit,
|
||||
};
|
||||
if (generate) {
|
||||
const defer_expr_scope = defer_scope.defer_expr_scope;
|
||||
const instruction = try irb.genNode(
|
||||
defer_expr_scope.expr_node,
|
||||
&defer_expr_scope.base,
|
||||
LVal.None,
|
||||
);
|
||||
if (instruction.isNoReturn()) {
|
||||
is_noreturn = true;
|
||||
} else {
|
||||
_ = Instruction.CheckVoidStmt.build(irb, &defer_expr_scope.base, instruction);
|
||||
}
|
||||
}
|
||||
},
|
||||
Scope.Id.FnDef,
|
||||
Scope.Id.Decls,
|
||||
=> return is_noreturn,
|
||||
|
||||
Scope.Id.CompTime,
|
||||
Scope.Id.Block,
|
||||
=> scope = scope.parent orelse return is_noreturn,
|
||||
|
||||
Scope.Id.DeferExpr => unreachable,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn lvalWrap(irb: *Builder, scope: *Scope, instruction: *Instruction, lval: LVal) !*Instruction {
|
||||
switch (lval) {
|
||||
LVal.None => return instruction,
|
||||
LVal.Ptr => {
|
||||
// We needed a pointer to a value, but we got a value. So we create
|
||||
// an instruction which just makes a const pointer of it.
|
||||
return Instruction.Ref.build(irb, scope, instruction, Mut.Const, Volatility.NonVolatile);
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
fn arena(self: *Builder) *Allocator {
|
||||
return &self.code.arena.allocator;
|
||||
}
|
||||
};
|
||||
|
||||
pub async fn gen(module: *Module, body_node: *ast.Node, scope: *Scope, parsed_file: *ParsedFile) !*Code {
|
||||
var irb = try Builder.init(module, parsed_file);
|
||||
errdefer irb.abort();
|
||||
|
||||
const entry_block = try irb.createBasicBlock(scope, "Entry");
|
||||
entry_block.ref(); // Entry block gets a reference because we enter it to begin.
|
||||
try irb.setCursorAtEndAndAppendBlock(entry_block);
|
||||
|
||||
const result = try irb.genNode(body_node, scope, LVal.None);
|
||||
if (!result.isNoReturn()) {
|
||||
const void_inst = try Instruction.Const.buildVoid(&irb, scope, false);
|
||||
(try Instruction.Return.build(&irb, scope, void_inst)).setGenerated();
|
||||
}
|
||||
|
||||
return irb.finish();
|
||||
}
|
||||
|
||||
@ -15,12 +15,21 @@ const errmsg = @import("errmsg.zig");
|
||||
const ast = std.zig.ast;
|
||||
const event = std.event;
|
||||
const assert = std.debug.assert;
|
||||
const AtomicRmwOp = builtin.AtomicRmwOp;
|
||||
const AtomicOrder = builtin.AtomicOrder;
|
||||
const Scope = @import("scope.zig").Scope;
|
||||
const Decl = @import("decl.zig").Decl;
|
||||
const ir = @import("ir.zig");
|
||||
const Visib = @import("visib.zig").Visib;
|
||||
const ParsedFile = @import("parsed_file.zig").ParsedFile;
|
||||
const Value = @import("value.zig").Value;
|
||||
const Type = Value.Type;
|
||||
|
||||
pub const Module = struct {
|
||||
loop: *event.Loop,
|
||||
name: Buffer,
|
||||
root_src_path: ?[]const u8,
|
||||
module: llvm.ModuleRef,
|
||||
llvm_module: llvm.ModuleRef,
|
||||
context: llvm.ContextRef,
|
||||
builder: llvm.BuilderRef,
|
||||
target: Target,
|
||||
@ -91,6 +100,16 @@ pub const Module = struct {
|
||||
|
||||
compile_errors: event.Locked(CompileErrList),
|
||||
|
||||
meta_type: *Type.MetaType,
|
||||
void_type: *Type.Void,
|
||||
bool_type: *Type.Bool,
|
||||
noreturn_type: *Type.NoReturn,
|
||||
|
||||
void_value: *Value.Void,
|
||||
true_value: *Value.Bool,
|
||||
false_value: *Value.Bool,
|
||||
noreturn_value: *Value.NoReturn,
|
||||
|
||||
const CompileErrList = std.ArrayList(*errmsg.Msg);
|
||||
|
||||
// TODO handle some of these earlier and report them in a way other than error codes
|
||||
@ -129,6 +148,7 @@ pub const Module = struct {
|
||||
Overflow,
|
||||
NotSupported,
|
||||
BufferTooSmall,
|
||||
Unimplemented,
|
||||
};
|
||||
|
||||
pub const Event = union(enum) {
|
||||
@ -180,8 +200,8 @@ pub const Module = struct {
|
||||
const context = c.LLVMContextCreate() orelse return error.OutOfMemory;
|
||||
errdefer c.LLVMContextDispose(context);
|
||||
|
||||
const module = c.LLVMModuleCreateWithNameInContext(name_buffer.ptr(), context) orelse return error.OutOfMemory;
|
||||
errdefer c.LLVMDisposeModule(module);
|
||||
const llvm_module = c.LLVMModuleCreateWithNameInContext(name_buffer.ptr(), context) orelse return error.OutOfMemory;
|
||||
errdefer c.LLVMDisposeModule(llvm_module);
|
||||
|
||||
const builder = c.LLVMCreateBuilderInContext(context) orelse return error.OutOfMemory;
|
||||
errdefer c.LLVMDisposeBuilder(builder);
|
||||
@ -189,12 +209,12 @@ pub const Module = struct {
|
||||
const events = try event.Channel(Event).create(loop, 0);
|
||||
errdefer events.destroy();
|
||||
|
||||
return loop.allocator.create(Module{
|
||||
const module = try loop.allocator.create(Module{
|
||||
.loop = loop,
|
||||
.events = events,
|
||||
.name = name_buffer,
|
||||
.root_src_path = root_src_path,
|
||||
.module = module,
|
||||
.llvm_module = llvm_module,
|
||||
.context = context,
|
||||
.builder = builder,
|
||||
.target = target.*,
|
||||
@ -248,7 +268,109 @@ pub const Module = struct {
|
||||
.exported_symbol_names = event.Locked(Decl.Table).init(loop, Decl.Table.init(loop.allocator)),
|
||||
.build_group = event.Group(BuildError!void).init(loop),
|
||||
.compile_errors = event.Locked(CompileErrList).init(loop, CompileErrList.init(loop.allocator)),
|
||||
|
||||
.meta_type = undefined,
|
||||
.void_type = undefined,
|
||||
.void_value = undefined,
|
||||
.bool_type = undefined,
|
||||
.true_value = undefined,
|
||||
.false_value = undefined,
|
||||
.noreturn_type = undefined,
|
||||
.noreturn_value = undefined,
|
||||
});
|
||||
try module.initTypes();
|
||||
return module;
|
||||
}
|
||||
|
||||
fn initTypes(module: *Module) !void {
|
||||
module.meta_type = try module.a().create(Type.MetaType{
|
||||
.base = Type{
|
||||
.base = Value{
|
||||
.id = Value.Id.Type,
|
||||
.typeof = undefined,
|
||||
.ref_count = 3, // 3 because it references itself twice
|
||||
},
|
||||
.id = builtin.TypeId.Type,
|
||||
},
|
||||
.value = undefined,
|
||||
});
|
||||
module.meta_type.value = &module.meta_type.base;
|
||||
module.meta_type.base.base.typeof = &module.meta_type.base;
|
||||
errdefer module.a().destroy(module.meta_type);
|
||||
|
||||
module.void_type = try module.a().create(Type.Void{
|
||||
.base = Type{
|
||||
.base = Value{
|
||||
.id = Value.Id.Type,
|
||||
.typeof = &Type.MetaType.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.id = builtin.TypeId.Void,
|
||||
},
|
||||
});
|
||||
errdefer module.a().destroy(module.void_type);
|
||||
|
||||
module.noreturn_type = try module.a().create(Type.NoReturn{
|
||||
.base = Type{
|
||||
.base = Value{
|
||||
.id = Value.Id.Type,
|
||||
.typeof = &Type.MetaType.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.id = builtin.TypeId.NoReturn,
|
||||
},
|
||||
});
|
||||
errdefer module.a().destroy(module.noreturn_type);
|
||||
|
||||
module.bool_type = try module.a().create(Type.Bool{
|
||||
.base = Type{
|
||||
.base = Value{
|
||||
.id = Value.Id.Type,
|
||||
.typeof = &Type.MetaType.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.id = builtin.TypeId.Bool,
|
||||
},
|
||||
});
|
||||
errdefer module.a().destroy(module.bool_type);
|
||||
|
||||
module.void_value = try module.a().create(Value.Void{
|
||||
.base = Value{
|
||||
.id = Value.Id.Void,
|
||||
.typeof = &Type.Void.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
});
|
||||
errdefer module.a().destroy(module.void_value);
|
||||
|
||||
module.true_value = try module.a().create(Value.Bool{
|
||||
.base = Value{
|
||||
.id = Value.Id.Bool,
|
||||
.typeof = &Type.Bool.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.x = true,
|
||||
});
|
||||
errdefer module.a().destroy(module.true_value);
|
||||
|
||||
module.false_value = try module.a().create(Value.Bool{
|
||||
.base = Value{
|
||||
.id = Value.Id.Bool,
|
||||
.typeof = &Type.Bool.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.x = false,
|
||||
});
|
||||
errdefer module.a().destroy(module.false_value);
|
||||
|
||||
module.noreturn_value = try module.a().create(Value.NoReturn{
|
||||
.base = Value{
|
||||
.id = Value.Id.NoReturn,
|
||||
.typeof = &Type.NoReturn.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
});
|
||||
errdefer module.a().destroy(module.noreturn_value);
|
||||
}
|
||||
|
||||
fn dump(self: *Module) void {
|
||||
@ -256,9 +378,17 @@ pub const Module = struct {
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Module) void {
|
||||
self.noreturn_value.base.deref(self);
|
||||
self.void_value.base.deref(self);
|
||||
self.false_value.base.deref(self);
|
||||
self.true_value.base.deref(self);
|
||||
self.noreturn_type.base.base.deref(self);
|
||||
self.void_type.base.base.deref(self);
|
||||
self.meta_type.base.base.deref(self);
|
||||
|
||||
self.events.destroy();
|
||||
c.LLVMDisposeBuilder(self.builder);
|
||||
c.LLVMDisposeModule(self.module);
|
||||
c.LLVMDisposeModule(self.llvm_module);
|
||||
c.LLVMContextDispose(self.context);
|
||||
self.name.deinit();
|
||||
|
||||
@ -331,8 +461,8 @@ pub const Module = struct {
|
||||
const tree = &parsed_file.tree;
|
||||
|
||||
// create empty struct for it
|
||||
const decls = try Scope.Decls.create(self.a(), null);
|
||||
errdefer decls.destroy();
|
||||
const decls = try Scope.Decls.create(self, null);
|
||||
defer decls.base.deref(self);
|
||||
|
||||
var decl_group = event.Group(BuildError!void).init(self.loop);
|
||||
errdefer decl_group.cancelAll();
|
||||
@ -359,14 +489,17 @@ pub const Module = struct {
|
||||
.id = Decl.Id.Fn,
|
||||
.name = name,
|
||||
.visib = parseVisibToken(tree, fn_proto.visib_token),
|
||||
.resolution = Decl.Resolution.Unresolved,
|
||||
.resolution = event.Future(BuildError!void).init(self.loop),
|
||||
.resolution_in_progress = 0,
|
||||
.parsed_file = parsed_file,
|
||||
.parent_scope = &decls.base,
|
||||
},
|
||||
.value = Decl.Fn.Val{ .Unresolved = {} },
|
||||
.fn_proto = fn_proto,
|
||||
});
|
||||
errdefer self.a().destroy(fn_decl);
|
||||
|
||||
try decl_group.call(addTopLevelDecl, self, parsed_file, &fn_decl.base);
|
||||
try decl_group.call(addTopLevelDecl, self, &fn_decl.base);
|
||||
},
|
||||
ast.Node.Id.TestDecl => @panic("TODO"),
|
||||
else => unreachable,
|
||||
@ -376,12 +509,12 @@ pub const Module = struct {
|
||||
try await (async self.build_group.wait() catch unreachable);
|
||||
}
|
||||
|
||||
async fn addTopLevelDecl(self: *Module, parsed_file: *ParsedFile, decl: *Decl) !void {
|
||||
const is_export = decl.isExported(&parsed_file.tree);
|
||||
async fn addTopLevelDecl(self: *Module, decl: *Decl) !void {
|
||||
const is_export = decl.isExported(&decl.parsed_file.tree);
|
||||
|
||||
if (is_export) {
|
||||
try self.build_group.call(verifyUniqueSymbol, self, parsed_file, decl);
|
||||
try self.build_group.call(generateDecl, self, parsed_file, decl);
|
||||
try self.build_group.call(verifyUniqueSymbol, self, decl);
|
||||
try self.build_group.call(resolveDecl, self, decl);
|
||||
}
|
||||
}
|
||||
|
||||
@ -416,36 +549,21 @@ pub const Module = struct {
|
||||
try compile_errors.value.append(msg);
|
||||
}
|
||||
|
||||
async fn verifyUniqueSymbol(self: *Module, parsed_file: *ParsedFile, decl: *Decl) !void {
|
||||
async fn verifyUniqueSymbol(self: *Module, decl: *Decl) !void {
|
||||
const exported_symbol_names = await (async self.exported_symbol_names.acquire() catch unreachable);
|
||||
defer exported_symbol_names.release();
|
||||
|
||||
if (try exported_symbol_names.value.put(decl.name, decl)) |other_decl| {
|
||||
try self.addCompileError(
|
||||
parsed_file,
|
||||
decl.parsed_file,
|
||||
decl.getSpan(),
|
||||
"exported symbol collision: '{}'",
|
||||
decl.name,
|
||||
);
|
||||
// TODO add error note showing location of other symbol
|
||||
}
|
||||
}
|
||||
|
||||
/// This declaration has been blessed as going into the final code generation.
|
||||
async fn generateDecl(self: *Module, parsed_file: *ParsedFile, decl: *Decl) void {
|
||||
switch (decl.id) {
|
||||
Decl.Id.Var => @panic("TODO"),
|
||||
Decl.Id.Fn => {
|
||||
const fn_decl = @fieldParentPtr(Decl.Fn, "base", decl);
|
||||
return await (async self.generateDeclFn(parsed_file, fn_decl) catch unreachable);
|
||||
},
|
||||
Decl.Id.CompTime => @panic("TODO"),
|
||||
}
|
||||
}
|
||||
|
||||
async fn generateDeclFn(self: *Module, parsed_file: *ParsedFile, fn_decl: *Decl.Fn) void {
|
||||
fn_decl.value = Decl.Fn.Val{ .Ok = Value.Fn{} };
|
||||
}
|
||||
|
||||
pub fn link(self: *Module, out_file: ?[]const u8) !void {
|
||||
warn("TODO link");
|
||||
return error.Todo;
|
||||
@ -501,177 +619,48 @@ fn parseVisibToken(tree: *ast.Tree, optional_token_index: ?ast.TokenIndex) Visib
|
||||
}
|
||||
}
|
||||
|
||||
pub const Scope = struct {
|
||||
id: Id,
|
||||
parent: ?*Scope,
|
||||
|
||||
pub const Id = enum {
|
||||
Decls,
|
||||
Block,
|
||||
};
|
||||
|
||||
pub const Decls = struct {
|
||||
base: Scope,
|
||||
table: Decl.Table,
|
||||
|
||||
pub fn create(a: *Allocator, parent: ?*Scope) !*Decls {
|
||||
const self = try a.create(Decls{
|
||||
.base = Scope{
|
||||
.id = Id.Decls,
|
||||
.parent = parent,
|
||||
},
|
||||
.table = undefined,
|
||||
});
|
||||
errdefer a.destroy(self);
|
||||
|
||||
self.table = Decl.Table.init(a);
|
||||
errdefer self.table.deinit();
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Decls) void {
|
||||
self.table.deinit();
|
||||
self.table.allocator.destroy(self);
|
||||
self.* = undefined;
|
||||
}
|
||||
};
|
||||
|
||||
pub const Block = struct {
|
||||
base: Scope,
|
||||
};
|
||||
};
|
||||
|
||||
pub const Visib = enum {
|
||||
Private,
|
||||
Pub,
|
||||
};
|
||||
|
||||
pub const Decl = struct {
|
||||
id: Id,
|
||||
name: []const u8,
|
||||
visib: Visib,
|
||||
resolution: Resolution,
|
||||
|
||||
pub const Table = std.HashMap([]const u8, *Decl, mem.hash_slice_u8, mem.eql_slice_u8);
|
||||
|
||||
pub fn isExported(base: *const Decl, tree: *ast.Tree) bool {
|
||||
switch (base.id) {
|
||||
Id.Fn => {
|
||||
const fn_decl = @fieldParentPtr(Fn, "base", base);
|
||||
return fn_decl.isExported(tree);
|
||||
},
|
||||
else => return false,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn getSpan(base: *const Decl) errmsg.Span {
|
||||
switch (base.id) {
|
||||
Id.Fn => {
|
||||
const fn_decl = @fieldParentPtr(Fn, "base", base);
|
||||
const fn_proto = fn_decl.fn_proto;
|
||||
const start = fn_proto.fn_token;
|
||||
const end = fn_proto.name_token orelse start;
|
||||
return errmsg.Span{
|
||||
.first = start,
|
||||
.last = end + 1,
|
||||
};
|
||||
},
|
||||
else => @panic("TODO"),
|
||||
}
|
||||
}
|
||||
|
||||
pub const Resolution = enum {
|
||||
Unresolved,
|
||||
InProgress,
|
||||
Invalid,
|
||||
Ok,
|
||||
};
|
||||
|
||||
pub const Id = enum {
|
||||
Var,
|
||||
Fn,
|
||||
CompTime,
|
||||
};
|
||||
|
||||
pub const Var = struct {
|
||||
base: Decl,
|
||||
};
|
||||
|
||||
pub const Fn = struct {
|
||||
base: Decl,
|
||||
value: Val,
|
||||
fn_proto: *const ast.Node.FnProto,
|
||||
|
||||
// TODO https://github.com/ziglang/zig/issues/683 and then make this anonymous
|
||||
pub const Val = union {
|
||||
Unresolved: void,
|
||||
Ok: Value.Fn,
|
||||
};
|
||||
|
||||
pub fn externLibName(self: Fn, tree: *ast.Tree) ?[]const u8 {
|
||||
return if (self.fn_proto.extern_export_inline_token) |tok_index| x: {
|
||||
const token = tree.tokens.at(tok_index);
|
||||
break :x switch (token.id) {
|
||||
Token.Id.Extern => tree.tokenSlicePtr(token),
|
||||
else => null,
|
||||
};
|
||||
} else null;
|
||||
}
|
||||
|
||||
pub fn isExported(self: Fn, tree: *ast.Tree) bool {
|
||||
if (self.fn_proto.extern_export_inline_token) |tok_index| {
|
||||
const token = tree.tokens.at(tok_index);
|
||||
return token.id == Token.Id.Keyword_export;
|
||||
/// This declaration has been blessed as going into the final code generation.
|
||||
pub async fn resolveDecl(module: *Module, decl: *Decl) !void {
|
||||
if (@atomicRmw(u8, &decl.resolution_in_progress, AtomicRmwOp.Xchg, 1, AtomicOrder.SeqCst) == 0) {
|
||||
decl.resolution.data = await (async generateDecl(module, decl) catch unreachable);
|
||||
decl.resolution.resolve();
|
||||
} else {
|
||||
return false;
|
||||
return (await (async decl.resolution.get() catch unreachable)).*;
|
||||
}
|
||||
}
|
||||
|
||||
/// The function that actually does the generation.
|
||||
async fn generateDecl(module: *Module, decl: *Decl) !void {
|
||||
switch (decl.id) {
|
||||
Decl.Id.Var => @panic("TODO"),
|
||||
Decl.Id.Fn => {
|
||||
const fn_decl = @fieldParentPtr(Decl.Fn, "base", decl);
|
||||
return await (async generateDeclFn(module, fn_decl) catch unreachable);
|
||||
},
|
||||
Decl.Id.CompTime => @panic("TODO"),
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
pub const CompTime = struct {
|
||||
base: Decl,
|
||||
};
|
||||
};
|
||||
async fn generateDeclFn(module: *Module, fn_decl: *Decl.Fn) !void {
|
||||
const body_node = fn_decl.fn_proto.body_node orelse @panic("TODO extern fn proto decl");
|
||||
|
||||
pub const Value = struct {
|
||||
pub const Fn = struct {};
|
||||
};
|
||||
const fndef_scope = try Scope.FnDef.create(module, fn_decl.base.parent_scope);
|
||||
defer fndef_scope.base.deref(module);
|
||||
|
||||
pub const Type = struct {
|
||||
id: Id,
|
||||
const fn_type = try Type.Fn.create(module);
|
||||
defer fn_type.base.base.deref(module);
|
||||
|
||||
pub const Id = enum {
|
||||
Type,
|
||||
Void,
|
||||
Bool,
|
||||
NoReturn,
|
||||
Int,
|
||||
Float,
|
||||
Pointer,
|
||||
Array,
|
||||
Struct,
|
||||
ComptimeFloat,
|
||||
ComptimeInt,
|
||||
Undefined,
|
||||
Null,
|
||||
Optional,
|
||||
ErrorUnion,
|
||||
ErrorSet,
|
||||
Enum,
|
||||
Union,
|
||||
Fn,
|
||||
Opaque,
|
||||
Promise,
|
||||
};
|
||||
const fn_val = try Value.Fn.create(module, fn_type, fndef_scope);
|
||||
defer fn_val.base.deref(module);
|
||||
|
||||
pub const Struct = struct {
|
||||
base: Type,
|
||||
decls: *Scope.Decls,
|
||||
};
|
||||
};
|
||||
fn_decl.value = Decl.Fn.Val{ .Ok = fn_val };
|
||||
|
||||
pub const ParsedFile = struct {
|
||||
tree: ast.Tree,
|
||||
realpath: []const u8,
|
||||
};
|
||||
const code = try await (async ir.gen(
|
||||
module,
|
||||
body_node,
|
||||
&fndef_scope.base,
|
||||
fn_decl.base.parsed_file,
|
||||
) catch unreachable);
|
||||
//code.dump();
|
||||
//try await (async irAnalyze(module, func) catch unreachable);
|
||||
}
|
||||
|
||||
6
src-self-hosted/parsed_file.zig
Normal file
6
src-self-hosted/parsed_file.zig
Normal file
@ -0,0 +1,6 @@
|
||||
const ast = @import("std").zig.ast;
|
||||
|
||||
pub const ParsedFile = struct {
|
||||
tree: ast.Tree,
|
||||
realpath: []const u8,
|
||||
};
|
||||
@ -1,16 +1,234 @@
|
||||
const std = @import("std");
|
||||
const Allocator = mem.Allocator;
|
||||
const Decl = @import("decl.zig").Decl;
|
||||
const Module = @import("module.zig").Module;
|
||||
const mem = std.mem;
|
||||
const ast = std.zig.ast;
|
||||
const Value = @import("value.zig").Value;
|
||||
const ir = @import("ir.zig");
|
||||
|
||||
pub const Scope = struct {
|
||||
id: Id,
|
||||
parent: *Scope,
|
||||
parent: ?*Scope,
|
||||
ref_count: usize,
|
||||
|
||||
pub fn ref(base: *Scope) void {
|
||||
base.ref_count += 1;
|
||||
}
|
||||
|
||||
pub fn deref(base: *Scope, module: *Module) void {
|
||||
base.ref_count -= 1;
|
||||
if (base.ref_count == 0) {
|
||||
if (base.parent) |parent| parent.deref(module);
|
||||
switch (base.id) {
|
||||
Id.Decls => @fieldParentPtr(Decls, "base", base).destroy(),
|
||||
Id.Block => @fieldParentPtr(Block, "base", base).destroy(module),
|
||||
Id.FnDef => @fieldParentPtr(FnDef, "base", base).destroy(module),
|
||||
Id.CompTime => @fieldParentPtr(CompTime, "base", base).destroy(module),
|
||||
Id.Defer => @fieldParentPtr(Defer, "base", base).destroy(module),
|
||||
Id.DeferExpr => @fieldParentPtr(DeferExpr, "base", base).destroy(module),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn findFnDef(base: *Scope) ?*FnDef {
|
||||
var scope = base;
|
||||
while (true) {
|
||||
switch (scope.id) {
|
||||
Id.FnDef => return @fieldParentPtr(FnDef, "base", base),
|
||||
Id.Decls => return null,
|
||||
|
||||
Id.Block,
|
||||
Id.Defer,
|
||||
Id.DeferExpr,
|
||||
Id.CompTime,
|
||||
=> scope = scope.parent orelse return null,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub const Id = enum {
|
||||
Decls,
|
||||
Block,
|
||||
Defer,
|
||||
DeferExpr,
|
||||
VarDecl,
|
||||
CImport,
|
||||
Loop,
|
||||
FnDef,
|
||||
CompTime,
|
||||
Defer,
|
||||
DeferExpr,
|
||||
};
|
||||
|
||||
pub const Decls = struct {
|
||||
base: Scope,
|
||||
table: Decl.Table,
|
||||
|
||||
/// Creates a Decls scope with 1 reference
|
||||
pub fn create(module: *Module, parent: ?*Scope) !*Decls {
|
||||
const self = try module.a().create(Decls{
|
||||
.base = Scope{
|
||||
.id = Id.Decls,
|
||||
.parent = parent,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.table = undefined,
|
||||
});
|
||||
errdefer module.a().destroy(self);
|
||||
|
||||
self.table = Decl.Table.init(module.a());
|
||||
errdefer self.table.deinit();
|
||||
|
||||
if (parent) |p| p.ref();
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Decls) void {
|
||||
self.table.deinit();
|
||||
self.table.allocator.destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Block = struct {
|
||||
base: Scope,
|
||||
incoming_values: std.ArrayList(*ir.Instruction),
|
||||
incoming_blocks: std.ArrayList(*ir.BasicBlock),
|
||||
end_block: *ir.BasicBlock,
|
||||
is_comptime: *ir.Instruction,
|
||||
|
||||
/// Creates a Block scope with 1 reference
|
||||
pub fn create(module: *Module, parent: ?*Scope) !*Block {
|
||||
const self = try module.a().create(Block{
|
||||
.base = Scope{
|
||||
.id = Id.Block,
|
||||
.parent = parent,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.incoming_values = undefined,
|
||||
.incoming_blocks = undefined,
|
||||
.end_block = undefined,
|
||||
.is_comptime = undefined,
|
||||
});
|
||||
errdefer module.a().destroy(self);
|
||||
|
||||
if (parent) |p| p.ref();
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Block, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const FnDef = struct {
|
||||
base: Scope,
|
||||
|
||||
/// This reference is not counted so that the scope can get destroyed with the function
|
||||
fn_val: *Value.Fn,
|
||||
|
||||
/// Creates a FnDef scope with 1 reference
|
||||
/// Must set the fn_val later
|
||||
pub fn create(module: *Module, parent: ?*Scope) !*FnDef {
|
||||
const self = try module.a().create(FnDef{
|
||||
.base = Scope{
|
||||
.id = Id.FnDef,
|
||||
.parent = parent,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.fn_val = undefined,
|
||||
});
|
||||
|
||||
if (parent) |p| p.ref();
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *FnDef, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const CompTime = struct {
|
||||
base: Scope,
|
||||
|
||||
/// Creates a CompTime scope with 1 reference
|
||||
pub fn create(module: *Module, parent: ?*Scope) !*CompTime {
|
||||
const self = try module.a().create(CompTime{
|
||||
.base = Scope{
|
||||
.id = Id.CompTime,
|
||||
.parent = parent,
|
||||
.ref_count = 1,
|
||||
},
|
||||
});
|
||||
|
||||
if (parent) |p| p.ref();
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *CompTime, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Defer = struct {
|
||||
base: Scope,
|
||||
defer_expr_scope: *DeferExpr,
|
||||
kind: Kind,
|
||||
|
||||
pub const Kind = enum {
|
||||
ScopeExit,
|
||||
ErrorExit,
|
||||
};
|
||||
|
||||
/// Creates a Defer scope with 1 reference
|
||||
pub fn create(
|
||||
module: *Module,
|
||||
parent: ?*Scope,
|
||||
kind: Kind,
|
||||
defer_expr_scope: *DeferExpr,
|
||||
) !*Defer {
|
||||
const self = try module.a().create(Defer{
|
||||
.base = Scope{
|
||||
.id = Id.Defer,
|
||||
.parent = parent,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.defer_expr_scope = defer_expr_scope,
|
||||
.kind = kind,
|
||||
});
|
||||
errdefer module.a().destroy(self);
|
||||
|
||||
defer_expr_scope.base.ref();
|
||||
|
||||
if (parent) |p| p.ref();
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Defer, module: *Module) void {
|
||||
self.defer_expr_scope.base.deref(module);
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const DeferExpr = struct {
|
||||
base: Scope,
|
||||
expr_node: *ast.Node,
|
||||
|
||||
/// Creates a DeferExpr scope with 1 reference
|
||||
pub fn create(module: *Module, parent: ?*Scope, expr_node: *ast.Node) !*DeferExpr {
|
||||
const self = try module.a().create(DeferExpr{
|
||||
.base = Scope{
|
||||
.id = Id.DeferExpr,
|
||||
.parent = parent,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.expr_node = expr_node,
|
||||
});
|
||||
errdefer module.a().destroy(self);
|
||||
|
||||
if (parent) |p| p.ref();
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *DeferExpr, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
268
src-self-hosted/type.zig
Normal file
268
src-self-hosted/type.zig
Normal file
@ -0,0 +1,268 @@
|
||||
const builtin = @import("builtin");
|
||||
const Scope = @import("scope.zig").Scope;
|
||||
const Module = @import("module.zig").Module;
|
||||
const Value = @import("value.zig").Value;
|
||||
|
||||
pub const Type = struct {
|
||||
base: Value,
|
||||
id: Id,
|
||||
|
||||
pub const Id = builtin.TypeId;
|
||||
|
||||
pub fn destroy(base: *Type, module: *Module) void {
|
||||
switch (base.id) {
|
||||
Id.Struct => @fieldParentPtr(Struct, "base", base).destroy(module),
|
||||
Id.Fn => @fieldParentPtr(Fn, "base", base).destroy(module),
|
||||
Id.Type => @fieldParentPtr(MetaType, "base", base).destroy(module),
|
||||
Id.Void => @fieldParentPtr(Void, "base", base).destroy(module),
|
||||
Id.Bool => @fieldParentPtr(Bool, "base", base).destroy(module),
|
||||
Id.NoReturn => @fieldParentPtr(NoReturn, "base", base).destroy(module),
|
||||
Id.Int => @fieldParentPtr(Int, "base", base).destroy(module),
|
||||
Id.Float => @fieldParentPtr(Float, "base", base).destroy(module),
|
||||
Id.Pointer => @fieldParentPtr(Pointer, "base", base).destroy(module),
|
||||
Id.Array => @fieldParentPtr(Array, "base", base).destroy(module),
|
||||
Id.ComptimeFloat => @fieldParentPtr(ComptimeFloat, "base", base).destroy(module),
|
||||
Id.ComptimeInt => @fieldParentPtr(ComptimeInt, "base", base).destroy(module),
|
||||
Id.Undefined => @fieldParentPtr(Undefined, "base", base).destroy(module),
|
||||
Id.Null => @fieldParentPtr(Null, "base", base).destroy(module),
|
||||
Id.Optional => @fieldParentPtr(Optional, "base", base).destroy(module),
|
||||
Id.ErrorUnion => @fieldParentPtr(ErrorUnion, "base", base).destroy(module),
|
||||
Id.ErrorSet => @fieldParentPtr(ErrorSet, "base", base).destroy(module),
|
||||
Id.Enum => @fieldParentPtr(Enum, "base", base).destroy(module),
|
||||
Id.Union => @fieldParentPtr(Union, "base", base).destroy(module),
|
||||
Id.Namespace => @fieldParentPtr(Namespace, "base", base).destroy(module),
|
||||
Id.Block => @fieldParentPtr(Block, "base", base).destroy(module),
|
||||
Id.BoundFn => @fieldParentPtr(BoundFn, "base", base).destroy(module),
|
||||
Id.ArgTuple => @fieldParentPtr(ArgTuple, "base", base).destroy(module),
|
||||
Id.Opaque => @fieldParentPtr(Opaque, "base", base).destroy(module),
|
||||
Id.Promise => @fieldParentPtr(Promise, "base", base).destroy(module),
|
||||
}
|
||||
}
|
||||
|
||||
pub const Struct = struct {
|
||||
base: Type,
|
||||
decls: *Scope.Decls,
|
||||
|
||||
pub fn destroy(self: *Struct, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Fn = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn create(module: *Module) !*Fn {
|
||||
return module.a().create(Fn{
|
||||
.base = Type{
|
||||
.base = Value{
|
||||
.id = Value.Id.Type,
|
||||
.typeof = &MetaType.get(module).base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.id = builtin.TypeId.Fn,
|
||||
},
|
||||
});
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Fn, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const MetaType = struct {
|
||||
base: Type,
|
||||
value: *Type,
|
||||
|
||||
/// Adds 1 reference to the resulting type
|
||||
pub fn get(module: *Module) *MetaType {
|
||||
module.meta_type.base.base.ref();
|
||||
return module.meta_type;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *MetaType, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Void = struct {
|
||||
base: Type,
|
||||
|
||||
/// Adds 1 reference to the resulting type
|
||||
pub fn get(module: *Module) *Void {
|
||||
module.void_type.base.base.ref();
|
||||
return module.void_type;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Void, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Bool = struct {
|
||||
base: Type,
|
||||
|
||||
/// Adds 1 reference to the resulting type
|
||||
pub fn get(module: *Module) *Bool {
|
||||
module.bool_type.base.base.ref();
|
||||
return module.bool_type;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Bool, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const NoReturn = struct {
|
||||
base: Type,
|
||||
|
||||
/// Adds 1 reference to the resulting type
|
||||
pub fn get(module: *Module) *NoReturn {
|
||||
module.noreturn_type.base.base.ref();
|
||||
return module.noreturn_type;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *NoReturn, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Int = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Int, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Float = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Float, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Pointer = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Pointer, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Array = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Array, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const ComptimeFloat = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *ComptimeFloat, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const ComptimeInt = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *ComptimeInt, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Undefined = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Undefined, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Null = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Null, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Optional = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Optional, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const ErrorUnion = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *ErrorUnion, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const ErrorSet = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *ErrorSet, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Enum = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Enum, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Union = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Union, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
pub const Namespace = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Namespace, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Block = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Block, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const BoundFn = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *BoundFn, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const ArgTuple = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *ArgTuple, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Opaque = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Opaque, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Promise = struct {
|
||||
base: Type,
|
||||
|
||||
pub fn destroy(self: *Promise, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
};
|
||||
125
src-self-hosted/value.zig
Normal file
125
src-self-hosted/value.zig
Normal file
@ -0,0 +1,125 @@
|
||||
const std = @import("std");
|
||||
const builtin = @import("builtin");
|
||||
const Scope = @import("scope.zig").Scope;
|
||||
const Module = @import("module.zig").Module;
|
||||
|
||||
/// Values are ref-counted, heap-allocated, and copy-on-write
|
||||
/// If there is only 1 ref then write need not copy
|
||||
pub const Value = struct {
|
||||
id: Id,
|
||||
typeof: *Type,
|
||||
ref_count: usize,
|
||||
|
||||
pub fn ref(base: *Value) void {
|
||||
base.ref_count += 1;
|
||||
}
|
||||
|
||||
pub fn deref(base: *Value, module: *Module) void {
|
||||
base.ref_count -= 1;
|
||||
if (base.ref_count == 0) {
|
||||
base.typeof.base.deref(module);
|
||||
switch (base.id) {
|
||||
Id.Type => @fieldParentPtr(Type, "base", base).destroy(module),
|
||||
Id.Fn => @fieldParentPtr(Fn, "base", base).destroy(module),
|
||||
Id.Void => @fieldParentPtr(Void, "base", base).destroy(module),
|
||||
Id.Bool => @fieldParentPtr(Bool, "base", base).destroy(module),
|
||||
Id.NoReturn => @fieldParentPtr(NoReturn, "base", base).destroy(module),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn dump(base: *const Value) void {
|
||||
std.debug.warn("{}", @tagName(base.id));
|
||||
}
|
||||
|
||||
pub const Id = enum {
|
||||
Type,
|
||||
Fn,
|
||||
Void,
|
||||
Bool,
|
||||
NoReturn,
|
||||
};
|
||||
|
||||
pub const Type = @import("type.zig").Type;
|
||||
|
||||
pub const Fn = struct {
|
||||
base: Value,
|
||||
|
||||
/// parent should be the top level decls or container decls
|
||||
fndef_scope: *Scope.FnDef,
|
||||
|
||||
/// parent is scope for last parameter
|
||||
child_scope: *Scope,
|
||||
|
||||
/// parent is child_scope
|
||||
block_scope: *Scope.Block,
|
||||
|
||||
/// Creates a Fn value with 1 ref
|
||||
pub fn create(module: *Module, fn_type: *Type.Fn, fndef_scope: *Scope.FnDef) !*Fn {
|
||||
const self = try module.a().create(Fn{
|
||||
.base = Value{
|
||||
.id = Value.Id.Fn,
|
||||
.typeof = &fn_type.base,
|
||||
.ref_count = 1,
|
||||
},
|
||||
.fndef_scope = fndef_scope,
|
||||
.child_scope = &fndef_scope.base,
|
||||
.block_scope = undefined,
|
||||
});
|
||||
fn_type.base.base.ref();
|
||||
fndef_scope.fn_val = self;
|
||||
fndef_scope.base.ref();
|
||||
return self;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Fn, module: *Module) void {
|
||||
self.fndef_scope.base.deref(module);
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Void = struct {
|
||||
base: Value,
|
||||
|
||||
pub fn get(module: *Module) *Void {
|
||||
module.void_value.base.ref();
|
||||
return module.void_value;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Void, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Bool = struct {
|
||||
base: Value,
|
||||
x: bool,
|
||||
|
||||
pub fn get(module: *Module, x: bool) *Bool {
|
||||
if (x) {
|
||||
module.true_value.base.ref();
|
||||
return module.true_value;
|
||||
} else {
|
||||
module.false_value.base.ref();
|
||||
return module.false_value;
|
||||
}
|
||||
}
|
||||
|
||||
pub fn destroy(self: *Bool, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
|
||||
pub const NoReturn = struct {
|
||||
base: Value,
|
||||
|
||||
pub fn get(module: *Module) *NoReturn {
|
||||
module.noreturn_value.base.ref();
|
||||
return module.noreturn_value;
|
||||
}
|
||||
|
||||
pub fn destroy(self: *NoReturn, module: *Module) void {
|
||||
module.a().destroy(self);
|
||||
}
|
||||
};
|
||||
};
|
||||
4
src-self-hosted/visib.zig
Normal file
4
src-self-hosted/visib.zig
Normal file
@ -0,0 +1,4 @@
|
||||
pub const Visib = enum {
|
||||
Private,
|
||||
Pub,
|
||||
};
|
||||
@ -57,7 +57,7 @@ test "std.event.Future" {
|
||||
const allocator = &da.allocator;
|
||||
|
||||
var loop: Loop = undefined;
|
||||
try loop.initSingleThreaded(allocator);
|
||||
try loop.initMultiThreaded(allocator);
|
||||
defer loop.deinit();
|
||||
|
||||
const handle = try async<allocator> testFuture(&loop);
|
||||
|
||||
@ -970,14 +970,8 @@ pub const Node = struct {
|
||||
pub const Defer = struct {
|
||||
base: Node,
|
||||
defer_token: TokenIndex,
|
||||
kind: Kind,
|
||||
expr: *Node,
|
||||
|
||||
const Kind = enum {
|
||||
Error,
|
||||
Unconditional,
|
||||
};
|
||||
|
||||
pub fn iterate(self: *Defer, index: usize) ?*Node {
|
||||
var i = index;
|
||||
|
||||
|
||||
@ -1041,11 +1041,6 @@ pub fn parse(allocator: *mem.Allocator, source: []const u8) !ast.Tree {
|
||||
const node = try arena.create(ast.Node.Defer{
|
||||
.base = ast.Node{ .id = ast.Node.Id.Defer },
|
||||
.defer_token = token_index,
|
||||
.kind = switch (token_ptr.id) {
|
||||
Token.Id.Keyword_defer => ast.Node.Defer.Kind.Unconditional,
|
||||
Token.Id.Keyword_errdefer => ast.Node.Defer.Kind.Error,
|
||||
else => unreachable,
|
||||
},
|
||||
.expr = undefined,
|
||||
});
|
||||
const node_ptr = try block.statements.addOne();
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user