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self-hosted: generalize astGenBuiltinCall

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Vexu
2020-06-19 20:45:57 +03:00
committed by Andrew Kelley
parent c9a0ec25e0
commit d98aed6eff
2 changed files with 27 additions and 9 deletions
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35
src-self-hosted/Module.zig
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@@ -1384,18 +1384,35 @@ fn astGenAsm(self: *Module, scope: *Scope, asm_node: *ast.Node.Asm) InnerError!*
fn astGenBuiltinCall(self: *Module, scope: *Scope, call: *ast.Node.BuiltinCall) InnerError!*zir.Inst {
const tree = scope.tree();
const builtin_name = tree.tokenSlice(call.builtin_token);
const src = tree.token_locs[call.builtin_token].start;
if (mem.eql(u8, builtin_name, "@ptrToInt")) {
if (call.params_len != 1) {
return self.failTok(scope, call.builtin_token, "expected 1 parameter, found {}", .{call.params_len});
inline for (std.meta.declarations(zir.Inst)) |inst| {
if (inst.data != .Type) continue;
const T = inst.data.Type;
if (!@hasDecl(T, "builtin_name")) continue;
if (std.mem.eql(u8, builtin_name, T.builtin_name)) {
var value: T = undefined;
const positionals = @typeInfo(std.meta.fieldInfo(T, "positionals").field_type).Struct;
if (positionals.fields.len == 0) {
return self.addZIRInst(scope, src, T, value.positionals, value.kw_args);
}
const arg_count: ?usize = if (positionals.fields[0].field_type == []*zir.Inst) null else positionals.fields.len;
if (arg_count) |some| {
if (call.params_len != some) {
return self.failTok(scope, call.builtin_token, "expected {} parameter, found {}", .{ some, call.params_len });
}
const params = call.params();
inline for (positionals.fields) |p, i| {
@field(value.positionals, p.name) = try self.astGenExpr(scope, params[i]);
}
} else {
return self.failTok(scope, call.builtin_token, "TODO var args builtin '{}'", .{builtin_name});
}
return self.addZIRInst(scope, src, T, value.positionals, .{});
}
const src = tree.token_locs[call.builtin_token].start;
return self.addZIRInst(scope, src, zir.Inst.PtrToInt, .{
.ptr = try self.astGenExpr(scope, call.params()[0]),
}, .{});
} else {
return self.failTok(scope, call.builtin_token, "TODO implement builtin call for '{}'", .{builtin_name});
}
return self.failTok(scope, call.builtin_token, "TODO implement builtin call for '{}'", .{builtin_name});
}
fn astGenCall(self: *Module, scope: *Scope, call: *ast.Node.Call) InnerError!*zir.Inst {