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-rw-r--r--src/lang/builtin/builtin.ts33
-rw-r--r--src/lang/builtin/index.ts3
-rw-r--r--src/lang/builtin/sbuiltin.ts27
-rw-r--r--src/lang/core/common.ts72
-rw-r--r--src/lang/core/eval.ts111
-rw-r--r--src/lang/core/index.ts0
-rw-r--r--src/lang/core/lexer.ts91
-rw-r--r--src/lang/core/parser.ts173
-rw-r--r--src/lang/index.ts1
-rw-r--r--src/lang/util/index.ts3
-rw-r--r--src/lang/util/number.ts37
-rw-r--r--src/lang/util/string.ts17
-rw-r--r--src/lang/util/utils.ts8
13 files changed, 0 insertions, 576 deletions
diff --git a/src/lang/builtin/builtin.ts b/src/lang/builtin/builtin.ts
deleted file mode 100644
index a289867..0000000
--- a/src/lang/builtin/builtin.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-import { FnError } from ".";
-import {
- AddNumbers,
- AddStrings,
- Multiply,
- ToString,
- UnarrayIfOnlyHead,
-} from "../util";
-
-export type BUILTIN_Arr<Args extends readonly any[]> = Args;
-
-export type BUILTIN_ToString<Args extends readonly any[]> = ToString<
- UnarrayIfOnlyHead<{
- [Idx in keyof Args]: ToString<Args[Idx]>;
- }>
->;
-
-export type BUILTIN_Add<Args extends readonly any[]> =
- Args extends readonly string[]
- ? AddStrings<Args>
- : Args extends readonly number[]
- ? AddNumbers<Args>
- : FnError<`Cannot add operands ${ToString<Args>}`>;
-
-export type BUILTIN_Mul<Args extends readonly any[]> = Args extends [
- infer A,
- infer B,
- infer C
-]
- ? FnError<`Can only multiply [number, number], but got ${ToString<Args>}`>
- : Args extends [infer M extends number, infer N extends number]
- ? Multiply<M, N>
- : FnError<`Can only multiply [number, number], but got ${ToString<Args>}`>;
diff --git a/src/lang/builtin/index.ts b/src/lang/builtin/index.ts
deleted file mode 100644
index de2bee3..0000000
--- a/src/lang/builtin/index.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export type FnError<T extends string> = `Function execution error: ${T}`;
-export * from "./builtin";
-export * from "./sbuiltin";
diff --git a/src/lang/builtin/sbuiltin.ts b/src/lang/builtin/sbuiltin.ts
deleted file mode 100644
index 01f197e..0000000
--- a/src/lang/builtin/sbuiltin.ts
+++ /dev/null
@@ -1,27 +0,0 @@
-import { ASTNode, StackFrame } from "../core/common";
-import { CallFn, FnPrim, GetEvaluatedChildren, EvalError } from "../core/eval";
-import { ExtractNumber, ToString } from "../util";
-
-export type SBUILTIN_Call<
- Node extends ASTNode,
- Frame extends StackFrame
-> = GetEvaluatedChildren<Node, Frame> extends [
- infer Fn extends FnPrim,
- ...infer Values extends readonly any[]
-]
- ? CallFn<Fn, Values, Frame>
- : EvalError<`Invalid params for function call: ${ToString<
- GetEvaluatedChildren<Node, Frame>
- >}`>;
-
-export type SBUILTIN_Map<
- Node extends ASTNode,
- Frame extends StackFrame
-> = GetEvaluatedChildren<Node, Frame> extends [
- infer Arr extends readonly any[],
- infer Fn extends FnPrim
-]
- ? { [Idx in keyof Arr]: CallFn<Fn, [Arr[Idx], ExtractNumber<Idx>], Frame> }
- : EvalError<`Invalid params for map: ${ToString<
- GetEvaluatedChildren<Node, Frame>
- >}`>;
diff --git a/src/lang/core/common.ts b/src/lang/core/common.ts
deleted file mode 100644
index 9e3840b..0000000
--- a/src/lang/core/common.ts
+++ /dev/null
@@ -1,72 +0,0 @@
-export enum TokenType {
- OPEN_PAREN = "(",
- CLOSE_PAREN = ")",
- SPACE = " ",
- SEMICOLON = ";",
- COMMA = ",",
- NAME = "NAME",
-}
-
-export enum TokenSubType {
- NA = "NA",
- LITERAL = "LITERAL",
- REFERENCE = "REFERENCE",
-}
-
-export type Token<
- Type extends TokenType = TokenType,
- Name extends string = string
-> = {
- type: Type;
- name: Name;
-};
-
-export type LexerCtx = {
- next: string;
- nameCollection: string;
- tokens: readonly Token[];
-};
-
-export enum NodeType {
- INT = "INT",
- EXT = "EXT",
- PARSER_ERROR = "PARSER_ERROR",
-}
-
-export type ASTNode<
- Type extends NodeType = NodeType,
- Name extends string = string,
- Value extends any = any,
- Children extends readonly ASTNode[] = readonly ASTNode<
- NodeType,
- string,
- any,
- any
- >[]
-> = {
- type: Type;
- name: Name;
- value: Value;
- children: Children;
-};
-
-export type ParserCtx = {
- remainingTokens: readonly Token[];
- lastToken: Token | null;
- stack: readonly ASTNode[];
-};
-
-export type StackFrame<
- Bindings extends Record<ASTNode["name"], any> = Record<ASTNode["name"], any>,
- Parent extends StackFrame | null = any
-> = {
- bindings: Bindings;
- parent: Parent;
-};
-
-export type EmptyStackFrame = StackFrame<{}, null>;
-
-export type WithPushedBindings<
- OldFrame extends StackFrame,
- Bindings extends StackFrame["bindings"]
-> = StackFrame<Bindings, OldFrame>;
diff --git a/src/lang/core/eval.ts b/src/lang/core/eval.ts
deleted file mode 100644
index 9181c81..0000000
--- a/src/lang/core/eval.ts
+++ /dev/null
@@ -1,111 +0,0 @@
-import {
- BUILTIN_Add,
- BUILTIN_Arr,
- BUILTIN_Mul,
- BUILTIN_ToString,
- SBUILTIN_Call,
- SBUILTIN_Map,
-} from "../builtin";
-import { ToString } from "../util";
-import { ASTNode, EmptyStackFrame, NodeType, StackFrame } from "./common";
-import { Lex } from "./lexer";
-import { Parse } from "./parser";
-
-export type SENTINEL_NO_BUILTIN = "__NO_BUILTIN__";
-export type MapBuiltins<
- Node extends ASTNode,
- Frame extends StackFrame
-> = GetEvaluatedChildren<Node, Frame> extends infer Args extends readonly any[]
- ? Node["name"] extends "call"
- ? SBUILTIN_Call<Node, Frame>
- : Node["name"] extends "map"
- ? SBUILTIN_Map<Node, Frame>
- : Node["name"] extends "tostring"
- ? BUILTIN_ToString<Args>
- : Node["name"] extends "arr"
- ? BUILTIN_Arr<Args>
- : Node["name"] extends "add"
- ? BUILTIN_Add<Args>
- : Node["name"] extends "mul"
- ? BUILTIN_Mul<Args>
- : SENTINEL_NO_BUILTIN
- : never;
-
-export type EvalError<T extends string> = `Eval error: ${T}`;
-
-export type FindInStack<
- Frame extends StackFrame,
- NameToFind
-> = NameToFind extends keyof Frame["bindings"]
- ? Frame["bindings"][NameToFind]
- : Frame["parent"] extends null
- ? EvalError<`Can't find name "${ToString<NameToFind>}" on the stack`>
- : FindInStack<Frame["parent"], NameToFind>;
-
-export type MapOnStack<
- Node extends ASTNode,
- Frame extends StackFrame
-> = FindInStack<Frame, Node["name"]>;
-
-export type FnPrim<
- Args extends readonly ASTNode[] = readonly ASTNode[],
- Fn extends ASTNode = ASTNode
-> = { args: Args; fn: Fn };
-
-export type HandleFn<Node extends ASTNode> = Node["children"] extends [
- ...infer Args extends ASTNode[],
- infer Fn extends ASTNode
-]
- ? FnPrim<Args, Fn>
- : never;
-
-export type MapZip<
- T extends readonly ASTNode[],
- U extends readonly PropertyKey[]
-> = {
- [Idx in Exclude<
- keyof T,
- keyof any[]
- > as T[Idx] extends infer Node extends ASTNode
- ? Node["name"]
- : never]: Idx extends keyof U ? U[Idx] : never;
-};
-
-export type CallFn<
- Fn extends FnPrim,
- Values extends readonly any[],
- Frame extends StackFrame
-> = Evaluate<Fn["fn"], StackFrame<MapZip<Fn["args"], Values>, Frame>>;
-
-export type Evaluate<
- Node extends ASTNode,
- Frame extends StackFrame = EmptyStackFrame
-> = Node["type"] extends NodeType.INT
- ? Node["value"]
- : Node["type"] extends NodeType.EXT
- ? // special builtin
- Node["name"] extends "fn"
- ? HandleFn<Node>
- : MapBuiltins<Node, Frame> extends infer BI
- ? BI extends SENTINEL_NO_BUILTIN
- ? MapOnStack<Node, Frame>
- : BI
- : never
- : EvalError<`Unhandled node type ${Node["type"]}`>;
-
-export type GetEvaluatedChildren<
- Node extends ASTNode,
- Frame extends StackFrame
-> = Node["children"] extends infer Children extends readonly ASTNode[]
- ? {
- [Idx in keyof Children]: Children[Idx] extends ASTNode
- ? Evaluate<Children[Idx], Frame>
- : never;
- }
- : never;
-
-const input =
- `map(arr("hello", "world"), fn(s, i, add(tostring(i), ":", s)))` as const;
-const lex_result = null as unknown as Lex<typeof input>;
-const parse_result = null as unknown as Parse<typeof lex_result>;
-const eval_result = null as unknown as Evaluate<typeof parse_result>;
diff --git a/src/lang/core/index.ts b/src/lang/core/index.ts
deleted file mode 100644
index e69de29..0000000
--- a/src/lang/core/index.ts
+++ /dev/null
diff --git a/src/lang/core/lexer.ts b/src/lang/core/lexer.ts
deleted file mode 100644
index 567964f..0000000
--- a/src/lang/core/lexer.ts
+++ /dev/null
@@ -1,91 +0,0 @@
-import { LexerCtx, Token, TokenSubType, TokenType } from "./common";
-
-export type BreakingToken =
- | TokenType.OPEN_PAREN
- | TokenType.CLOSE_PAREN
- | TokenType.COMMA
- | TokenType.SEMICOLON
- | TokenType.SPACE;
-
-export type IsWhitespace<T extends string> = T extends `${TokenType.SPACE}`
- ? true
- : T extends `${TokenType.COMMA}`
- ? true
- : T extends `${TokenType.SEMICOLON}`
- ? true
- : false;
-
-export type ProcessNameCollection<
- Ctx extends LexerCtx,
- Tail extends string,
- _Token extends Token | null
-> = {
- next: Tail;
- nameCollection: "";
- tokens: _Token extends null
- ? [
- ...Ctx["tokens"],
- ...(Ctx["nameCollection"] extends ""
- ? []
- : [Token<TokenType.NAME, Ctx["nameCollection"]>])
- ]
- : [
- ...Ctx["tokens"],
- ...(Ctx["nameCollection"] extends ""
- ? [_Token]
- : [Token<TokenType.NAME, Ctx["nameCollection"]>, _Token])
- ];
-};
-
-export type IsOpen<T> = T extends `${TokenType.OPEN_PAREN}` ? true : false;
-export type IsClose<T> = T extends `${TokenType.CLOSE_PAREN}` ? true : false;
-
-export type ChunkedLex<
- Ctx extends LexerCtx,
- Depth extends any[] = []
-> = Depth["length"] extends 50
- ? Ctx & {
- endChunk: true;
- }
- : Ctx["next"] extends `${infer Head}${infer Tail}`
- ? IsWhitespace<Head> extends true
- ? ChunkedLex<ProcessNameCollection<Ctx, Tail, null>, [0, ...Depth]>
- : IsOpen<Head> extends true
- ? ChunkedLex<
- ProcessNameCollection<Ctx, Tail, Token<TokenType.OPEN_PAREN>>,
- [0, ...Depth]
- >
- : IsClose<Head> extends true
- ? ChunkedLex<
- ProcessNameCollection<Ctx, Tail, Token<TokenType.CLOSE_PAREN>>,
- [0, ...Depth]
- >
- : ChunkedLex<
- {
- next: Tail;
- nameCollection: `${Ctx["nameCollection"]}${Head}`;
- tokens: Ctx["tokens"];
- },
- [0, ...Depth]
- >
- : Ctx;
-
-export type InnerLex<
- Next extends string,
- NameCollection extends LexerCtx["nameCollection"] = "",
- AccTokens extends Token[] = []
-> = Next extends ""
- ? AccTokens
- : ChunkedLex<{
- next: Next;
- tokens: [];
- nameCollection: NameCollection;
- }> extends infer U
- ? U extends LexerCtx & { endChunk: true }
- ? InnerLex<U["next"], U["nameCollection"], [...AccTokens, ...U["tokens"]]>
- : U extends LexerCtx
- ? [...AccTokens, ...U["tokens"]]
- : never
- : never;
-
-export type Lex<Raw extends string> = InnerLex<Raw>;
diff --git a/src/lang/core/parser.ts b/src/lang/core/parser.ts
deleted file mode 100644
index 2b481fd..0000000
--- a/src/lang/core/parser.ts
+++ /dev/null
@@ -1,173 +0,0 @@
-import {
- ASTNode,
- NodeType,
- ParserCtx,
- Token,
- TokenSubType,
- TokenType,
-} from "./common";
-import { Lex } from "./lexer";
-
-export type Error<T extends string> = ASTNode<
- NodeType.PARSER_ERROR,
- "Error",
- T,
- []
->;
-
-export type PushChild<Node extends ASTNode, Child extends ASTNode> = {
- type: Node["type"];
- value: Node["value"];
- name: Node["name"];
- children: [...Node["children"], Child];
-};
-
-export type PushChildToLastElementOfStack<
- Stack extends ParserCtx["stack"],
- Child extends ASTNode
-> = Stack extends [...infer Head, infer Tail extends ASTNode]
- ? [...Head, PushChild<Tail, Child>]
- : Stack extends [infer Only extends ASTNode]
- ? [PushChild<Only, Child>]
- : never;
-
-export type PushChildToSecondLastElementOfStack<
- Stack extends ParserCtx["stack"],
- Child extends ASTNode
-> = Stack extends [
- ...infer Head,
- infer Tail extends ASTNode,
- infer Final extends ASTNode
-]
- ? [...Head, PushChild<Tail, Child>, Final]
- : Stack extends [infer Only extends ASTNode, infer Final extends ASTNode]
- ? [PushChild<Only, Child>, Final]
- : never;
-
-export type GetLastOnStack<Stack extends ParserCtx["stack"]> = Stack extends [
- ...infer Head,
- infer Tail extends ASTNode
-]
- ? Tail
- : Stack extends [infer Only extends ASTNode]
- ? Only
- : never;
-
-export type StackWithoutLast<Stack extends ParserCtx["stack"]> = Stack extends [
- ...infer Head extends ASTNode[],
- infer Tail
-]
- ? [...Head]
- : Stack extends [infer Only extends ASTNode]
- ? []
- : never;
-
-type NULL_SENTINEL = {
- NULL: true;
-};
-
-export type ParseNumberLiteral<T extends string> =
- T extends `${infer Inner extends number}` ? Inner : NULL_SENTINEL;
-
-export type ParseStringLiteral<T extends string> =
- T extends `"${infer Inner extends string}"` ? Inner : NULL_SENTINEL;
-
-export type ResolveNodeFromToken<_Token extends Token> = ParseNumberLiteral<
- _Token["name"]
-> extends number
- ? ASTNode<NodeType.INT, "", ParseNumberLiteral<_Token["name"]>, []>
- : ParseStringLiteral<_Token["name"]> extends string
- ? ASTNode<NodeType.INT, "", ParseStringLiteral<_Token["name"]>, []>
- : ASTNode<NodeType.EXT, _Token["name"], null, []>;
-
-export type _Parse<Ctx extends ParserCtx> = Ctx["remainingTokens"] extends [
- infer Head extends Token,
- ...infer Tail extends readonly Token[]
-]
- ? Ctx["lastToken"] extends Token
- ? Head["type"] extends TokenType.NAME
- ? // we already have a lastToken
- // mutate last element of stack to push lastToken as child
- // lastToken = nextToken
- // goto start
- _Parse<{
- lastToken: Head;
- remainingTokens: Tail;
- stack: PushChildToLastElementOfStack<
- Ctx["stack"],
- ResolveNodeFromToken<Ctx["lastToken"]>
- >;
- }>
- : //nextToken is openParen or close paren
- Head["type"] extends TokenType.CLOSE_PAREN
- ? // handle lastToken
- // set last element of stack as child of prev element on stack
- // pop stack
- // [stack[last - 1].children.push(stack.pop)
- // goto start
- _Parse<{
- lastToken: null;
- remainingTokens: Tail;
- // first push the last name onto the children of the top
- // then push the top onto the children of the next
- // then remove the top
- stack: StackWithoutLast<
- PushChildToSecondLastElementOfStack<
- Ctx["stack"],
- PushChild<
- GetLastOnStack<Ctx["stack"]>,
- ResolveNodeFromToken<Ctx["lastToken"]>
- >
- >
- >;
- }>
- : Head["type"] extends TokenType.OPEN_PAREN
- ? // push lastToken onto stack
- // goto start
- _Parse<{
- lastToken: null;
- remainingTokens: Tail;
- stack: [...Ctx["stack"], ResolveNodeFromToken<Ctx["lastToken"]>];
- }>
- : Ctx & Error<`Was not expecting ${Head["type"]}`>
- : // expect nextToken to be a name or close paren
- Head["type"] extends TokenType.NAME
- ? // lastToken = nextToken
- // goto start
- _Parse<{
- lastToken: Head;
- remainingTokens: Tail;
- stack: Ctx["stack"];
- }>
- : Head["type"] extends TokenType.CLOSE_PAREN
- ? _Parse<{
- lastToken: null;
- remainingTokens: Tail;
- // push the top onto the children of the next
- // then remove the top
- stack: StackWithoutLast<
- PushChildToSecondLastElementOfStack<
- Ctx["stack"],
- GetLastOnStack<Ctx["stack"]>
- >
- >;
- }>
- : Ctx &
- Error<`Expected nextToken to be a name or close paren at ${Head["type"]}`>
- : Ctx["lastToken"] extends Token
- ? // case where we ended with a name
- _Parse<{
- lastToken: null;
- remainingTokens: [];
- stack: PushChildToLastElementOfStack<
- Ctx["stack"],
- ResolveNodeFromToken<Ctx["lastToken"]>
- >;
- }>
- : Ctx["stack"][0];
-
-export type Parse<Raw extends readonly Token[]> = _Parse<{
- lastToken: null;
- remainingTokens: Raw;
- stack: [ASTNode<NodeType.EXT, "arr", null, []>];
-}>;
diff --git a/src/lang/index.ts b/src/lang/index.ts
deleted file mode 100644
index 8d119de..0000000
--- a/src/lang/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from "./core";
diff --git a/src/lang/util/index.ts b/src/lang/util/index.ts
deleted file mode 100644
index 00a3e54..0000000
--- a/src/lang/util/index.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export * from "./number";
-export * from "./utils";
-export * from "./string";
diff --git a/src/lang/util/number.ts b/src/lang/util/number.ts
deleted file mode 100644
index 6e4e360..0000000
--- a/src/lang/util/number.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-export type NumberToArray<
- Number extends number,
- Carry extends readonly any[] = []
-> = Number extends Carry["length"]
- ? Carry
- : NumberToArray<Number, [...Carry, any]>;
-
-export type NumbersToArray<
- Numbers extends readonly number[],
- Carry extends readonly any[] = []
-> = Numbers extends [
- infer Head extends number,
- ...infer Tail extends readonly number[]
-]
- ? NumbersToArray<Tail, [...Carry, ...NumberToArray<Head>]>
- : Carry;
-
-export type AddNumbers<Numbers extends readonly number[]> =
- NumbersToArray<Numbers> extends infer T extends readonly any[]
- ? T["length"]
- : never;
-
-export type MultiplyInner<
- N extends number,
- MS extends readonly any[],
- Carry extends number = 0
-> = MS extends [infer Head extends number, ...infer Tail extends readonly any[]]
- ? MultiplyInner<N, Tail, AddNumbers<[Carry, N]>>
- : Carry;
-
-export type Multiply<M extends number, N extends number> = MultiplyInner<
- M,
- NumberToArray<N>
->;
-
-export type ExtractNumber<T extends any> =
- T extends `${infer Inner extends number}` ? Inner : never;
diff --git a/src/lang/util/string.ts b/src/lang/util/string.ts
deleted file mode 100644
index 5772f40..0000000
--- a/src/lang/util/string.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-export type AddStrings<
- Strings extends readonly string[],
- Carry extends string = ""
-> = Strings extends [infer Head extends string, ...infer Tail extends string[]]
- ? AddStrings<Tail, `${Carry}${Head}`>
- : Carry;
-
-export type ToString<T, Carry extends string = ""> = T extends string | number
- ? `${T}`
- : T extends readonly any[]
- ? T extends readonly [infer Head, ...infer Tail]
- ? `${ToString<
- Tail,
- `${Carry extends "" ? "" : `${Carry}, `}${ToString<Head>}`
- >}`
- : `[${Carry}]`
- : never;
diff --git a/src/lang/util/utils.ts b/src/lang/util/utils.ts
deleted file mode 100644
index ac36ca1..0000000
--- a/src/lang/util/utils.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-export type UnarrayIfOnlyHead<T extends readonly any[]> = T extends [
- infer Head,
- infer Next
-]
- ? T
- : T extends [infer Head]
- ? Head
- : T;