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stage2: fix field access of array pointers

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Vexu 2020-08-24 16:05:34 +03:00 committed by Andrew Kelley
parent 1520e084cb
commit bc1d55a1d1
1 changed files with 29 additions and 1 deletions
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30
src-self-hosted/zir_sema.zig
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@ -908,6 +908,33 @@ fn analyzeInstFieldPtr(mod: *Module, scope: *Scope, fieldptr: *zir.Inst.FieldPtr
);
}
},
.Pointer => {
const ptr_child = elem_ty.elemType();
switch (ptr_child.zigTypeTag()) {
.Array => {
if (mem.eql(u8, field_name, "len")) {
const len_payload = try scope.arena().create(Value.Payload.Int_u64);
len_payload.* = .{ .int = ptr_child.arrayLen() };
const ref_payload = try scope.arena().create(Value.Payload.RefVal);
ref_payload.* = .{ .val = Value.initPayload(&len_payload.base) };
return mod.constInst(scope, fieldptr.base.src, .{
.ty = Type.initTag(.single_const_pointer_to_comptime_int),
.val = Value.initPayload(&ref_payload.base),
});
} else {
return mod.fail(
scope,
fieldptr.positionals.field_name.src,
"no member named '{}' in '{}'",
.{ field_name, elem_ty },
);
}
},
else => {},
}
},
.Type => {
_ = try mod.resolveConstValue(scope, object_ptr);
const result = try mod.analyzeDeref(scope, fieldptr.base.src, object_ptr, object_ptr.src);
@ -940,8 +967,9 @@ fn analyzeInstFieldPtr(mod: *Module, scope: *Scope, fieldptr: *zir.Inst.FieldPtr
else => return mod.fail(scope, fieldptr.base.src, "type '{}' does not support field access", .{child_type}),
}
},
else => return mod.fail(scope, fieldptr.base.src, "type '{}' does not support field access", .{elem_ty}),
else => {},
}
return mod.fail(scope, fieldptr.base.src, "type '{}' does not support field access", .{elem_ty});
}
fn analyzeInstIntCast(mod: *Module, scope: *Scope, inst: *zir.Inst.BinOp) InnerError!*Inst {