23715943451

Committed 29 Mar 2026 06:25PM UTC coverage: 59.421% (+18.2%) from 41.233%

Build # 23715943451

Build Type

Pull #81

github

Committed by

web-flow

Commit Message

Merge b47bfeb8f into 7b1e59a17

Pull Request Pull Request #81: Python chapter 2 (+ 3?) support

Coverage Stats

779 of 1553 branches covered (50.16%)

Branch coverage included in aggregate %.

442 of 651 new or added lines in 32 files covered. (67.9%)

17 existing lines in 4 files now uncovered.

2400 of 3797 relevant lines covered (63.21%)

3195.38 hits per line

Source File
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40.0

/src/stdlib/pairmutator.ts

import { Context } from "../cse-machine/context";
import { ControlItem } from "../cse-machine/control";
import { BuiltinValue, NoneValue, Value } from "../cse-machine/stash";
import { Validate } from "../stdlib";
import { Group, GroupName } from "./utils";

const pairmutatorBuiltins = new Map<string, BuiltinValue>();

class PairmutatorBuiltins {
  @Validate(2, 2, "set_head", true)
  static set_head(
    args: Value[],
    _source: string,
    _command: ControlItem,
    _context: Context,
  ): NoneValue {
    const head = args[0];
    const tail = args[1];
    if (head.type !== "list" || head.value.length !== 2) {
      throw new Error("set_head expects a pair as the first argument");
    }
    head.value[0] = tail;
    return { type: "none" };
  }

  @Validate(2, 2, "set_tail", true)
  static set_tail(
    args: Value[],
    _source: string,
    _command: ControlItem,
    _context: Context,
  ): NoneValue {
    const head = args[0];
    const tail = args[1];
    if (head.type !== "list" || head.value.length !== 2) {
      throw new Error("set_tail expects a pair as the first argument");
    }
    head.value[1] = tail;
    return { type: "none" };
  }
}
for (const builtin of Object.getOwnPropertyNames(PairmutatorBuiltins)) {
  if (
    typeof PairmutatorBuiltins[builtin as keyof typeof PairmutatorBuiltins] === "function" &&
    !builtin.startsWith("_")
  ) {
    pairmutatorBuiltins.set(builtin, {
      type: "builtin",
      func: PairmutatorBuiltins[
        builtin as keyof typeof PairmutatorBuiltins
      ] as BuiltinValue["func"],
      name: builtin,
    });
  }
}
export default {
  name: GroupName.PAIRMUTATORS,
  prelude: ``,
  builtins: pairmutatorBuiltins,
} as Group;

1	import { Context } from "../cse-machine/context";
2	import { ControlItem } from "../cse-machine/control";
3	import { BuiltinValue, NoneValue, Value } from "../cse-machine/stash";
4	import { Validate } from "../stdlib";	1✔
5	import { Group, GroupName } from "./utils";	1✔
6
7	const pairmutatorBuiltins = new Map<string, BuiltinValue>();	1✔
8
9	class PairmutatorBuiltins {
10	@Validate(2, 2, "set_head", true)
11	static set_head(	1✔
12	args: Value[],
13	_source: string,
14	_command: ControlItem,
15	_context: Context,
16	): NoneValue {
NEW 17	const head = args[0];	×
NEW 18	const tail = args[1];	×
NEW 19	if (head.type !== "list" \|\| head.value.length !== 2) {	×
NEW 20	throw new Error("set_head expects a pair as the first argument");	×
21	}
NEW 22	head.value[0] = tail;	×
NEW 23	return { type: "none" };	×
24	}
25
26	@Validate(2, 2, "set_tail", true)
27	static set_tail(	1✔
28	args: Value[],
29	_source: string,
30	_command: ControlItem,
31	_context: Context,
32	): NoneValue {
NEW 33	const head = args[0];	×
NEW 34	const tail = args[1];	×
NEW 35	if (head.type !== "list" \|\| head.value.length !== 2) {	×
NEW 36	throw new Error("set_tail expects a pair as the first argument");	×
37	}
NEW 38	head.value[1] = tail;	×
NEW 39	return { type: "none" };	×
40	}
41	}
42	for (const builtin of Object.getOwnPropertyNames(PairmutatorBuiltins)) {	1✔
43	if (	5✔
44	typeof PairmutatorBuiltins[builtin as keyof typeof PairmutatorBuiltins] === "function" &&	7✔
45	!builtin.startsWith("_")
46	) {
47	pairmutatorBuiltins.set(builtin, {	2✔
48	type: "builtin",
49	func: PairmutatorBuiltins[
50	builtin as keyof typeof PairmutatorBuiltins
51	] as BuiltinValue["func"],
52	name: builtin,
53	});
54	}
55	}
56	export default {	1✔
57	name: GroupName.PAIRMUTATORS,
58	prelude: ``,
59	builtins: pairmutatorBuiltins,
60	} as Group;

source-academy / py-slang / 23715943451

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