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AstGen: implement @typeInfo builtin

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This commit is contained in:
Andrew Kelley 2021-04-08 22:38:13 -07:00
parent 6e05d53e88
commit 23db96931e
3 changed files with 18 additions and 1 deletions
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8
src/AstGen.zig
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@ -1356,6 +1356,7 @@ fn blockExprStmts(
.opaque_decl,
.int_to_enum,
.enum_to_int,
.type_info,
=> break :b false,
// ZIR instructions that are always either `noreturn` or `void`.
@ -4198,6 +4199,12 @@ fn builtinCall(
return rvalue(gz, scope, rl, result, node);
},
.type_info => {
const operand = try typeExpr(gz, scope, params[0]);
const result = try gz.addUnNode(.type_info, operand, node);
return rvalue(gz, scope, rl, result, node);
},
.add_with_overflow,
.align_cast,
.align_of,
@ -4274,7 +4281,6 @@ fn builtinCall(
.This,
.truncate,
.Type,
.type_info,
.type_name,
.union_init,
=> return mod.failNode(scope, node, "TODO: implement builtin function {s}", .{

7
src/Sema.zig
View File

@ -259,6 +259,7 @@ pub fn analyzeBody(
.switch_capture_multi_ref => try sema.zirSwitchCapture(block, inst, true, true),
.switch_capture_else => try sema.zirSwitchCaptureElse(block, inst, false),
.switch_capture_else_ref => try sema.zirSwitchCaptureElse(block, inst, true),
.type_info => try sema.zirTypeInfo(block, inst),
.typeof => try sema.zirTypeof(block, inst),
.typeof_elem => try sema.zirTypeofElem(block, inst),
.typeof_peer => try sema.zirTypeofPeer(block, inst),
@ -4078,6 +4079,12 @@ fn zirCmp(
return block.addBinOp(src, bool_type, tag, casted_lhs, casted_rhs);
}
fn zirTypeInfo(sema: *Sema, block: *Scope.Block, inst: zir.Inst.Index) InnerError!*Inst {
const inst_data = sema.code.instructions.items(.data)[inst].un_node;
const src = inst_data.src();
return sema.mod.fail(&block.base, src, "TODO: implement Sema.zirTypeInfo", .{});
}
fn zirTypeof(sema: *Sema, block: *Scope.Block, inst: zir.Inst.Index) InnerError!*Inst {
const inst_data = sema.code.instructions.items(.data)[inst].un_node;
const src = inst_data.src();

4
src/zir.zig
View File

@ -687,6 +687,8 @@ pub const Inst = struct {
/// Converts an enum value into an integer. Resulting type will be the tag type
/// of the enum. Uses `un_node`.
enum_to_int,
/// Implements the `@typeInfo` builtin. Uses `un_node`.
type_info,
/// Returns whether the instruction is one of the control flow "noreturn" types.
/// Function calls do not count.
@ -850,6 +852,7 @@ pub const Inst = struct {
.field_type,
.int_to_enum,
.enum_to_int,
.type_info,
=> false,
.@"break",
@ -1652,6 +1655,7 @@ const Writer = struct {
.typeof_elem,
.struct_init_empty,
.enum_to_int,
.type_info,
=> try self.writeUnNode(stream, inst),
.ref,