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authorKai Stevenson <kai@kaistevenson.com>2025-11-03 23:41:31 -0800
committerKai Stevenson <kai@kaistevenson.com>2025-11-03 23:41:31 -0800
commit8b610f2bcfc223333254ce9679730c42dce6d26e (patch)
treeac1eab726395523f8725bda3d040e22214cba409 /src/ts-lang/core
parent56040f3ff85e77311f0c864a89afd63fcf1bdb50 (diff)
add createFn
Diffstat (limited to 'src/ts-lang/core')
-rw-r--r--src/ts-lang/core/common.ts66
-rw-r--r--src/ts-lang/core/eval.ts102
-rw-r--r--src/ts-lang/core/index.ts4
-rw-r--r--src/ts-lang/core/lexer.ts84
-rw-r--r--src/ts-lang/core/parser.ts165
5 files changed, 0 insertions, 421 deletions
diff --git a/src/ts-lang/core/common.ts b/src/ts-lang/core/common.ts
deleted file mode 100644
index fa5cb7c..0000000
--- a/src/ts-lang/core/common.ts
+++ /dev/null
@@ -1,66 +0,0 @@
-export enum TokenType {
- OPEN_PAREN = "(",
- CLOSE_PAREN = ")",
- SPACE = " ",
- SEMICOLON = ";",
- COMMA = ",",
- NAME = "NAME",
-}
-
-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/ts-lang/core/eval.ts b/src/ts-lang/core/eval.ts
deleted file mode 100644
index 5f22299..0000000
--- a/src/ts-lang/core/eval.ts
+++ /dev/null
@@ -1,102 +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";
-
-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 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>
- : // error?
- never;
-
-// any[] was propertykey
-export type MapZip<
- Args extends readonly ASTNode[],
- Values extends readonly any[]
-> = {
- [Idx in Exclude<
- keyof Args,
- keyof any[]
- > as Args[Idx] extends infer Node extends ASTNode
- ? Node["name"]
- : never]: Idx extends keyof Values ? Values[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
-> = 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
- ? FindInStack<Frame, Node["name"]>
- : BI
- : never
- : EvalError<`Unhandled node type ${Node["type"]}`>;
-
-export type GetEvaluatedChildren<
- Node extends ASTNode,
- Frame extends StackFrame
-> = Node["children"] extends infer Children extends readonly ASTNode[]
- ? {
- [Idx in keyof Children]: Children[Idx] extends ASTNode
- ? _Evaluate<Children[Idx], Frame>
- : never;
- }
- : never;
-
-export type Evaluate<Node extends ASTNode> = _Evaluate<Node, EmptyStackFrame>;
diff --git a/src/ts-lang/core/index.ts b/src/ts-lang/core/index.ts
deleted file mode 100644
index 881cacf..0000000
--- a/src/ts-lang/core/index.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-export * from "./common";
-export * from "./eval";
-export * from "./parser";
-export * from "./lexer";
diff --git a/src/ts-lang/core/lexer.ts b/src/ts-lang/core/lexer.ts
deleted file mode 100644
index bcd5785..0000000
--- a/src/ts-lang/core/lexer.ts
+++ /dev/null
@@ -1,84 +0,0 @@
-import { LexerCtx, Token, TokenType } from "./common";
-
-export type IsWhitespace<T extends string> = T extends `${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<`${Raw};`>;
diff --git a/src/ts-lang/core/parser.ts b/src/ts-lang/core/parser.ts
deleted file mode 100644
index db6f3aa..0000000
--- a/src/ts-lang/core/parser.ts
+++ /dev/null
@@ -1,165 +0,0 @@
-import { ASTNode, NodeType, ParserCtx, Token, TokenType } from "./common";
-
-export type Error<T extends string> = ASTNode<
- NodeType.PARSER_ERROR,
- "Error",
- T,
- []
->;
-
-export type PushChild<Node extends ASTNode, Child extends ASTNode> = {
- type: Node["type"];
- value: Node["value"];
- name: Node["name"];
- children: [...Node["children"], Child];
-};
-
-export type PushChildToLastElementOfStack<
- Stack extends ParserCtx["stack"],
- Child extends ASTNode
-> = Stack extends [...infer Head, infer Tail extends ASTNode]
- ? [...Head, PushChild<Tail, Child>]
- : Stack extends [infer Only extends ASTNode]
- ? [PushChild<Only, Child>]
- : never;
-
-export type PushChildToSecondLastElementOfStack<
- Stack extends ParserCtx["stack"],
- Child extends ASTNode
-> = Stack extends [
- ...infer Head,
- infer Tail extends ASTNode,
- infer Final extends ASTNode
-]
- ? [...Head, PushChild<Tail, Child>, Final]
- : Stack extends [infer Only extends ASTNode, infer Final extends ASTNode]
- ? [PushChild<Only, Child>, Final]
- : never;
-
-export type GetLastOnStack<Stack extends ParserCtx["stack"]> = Stack extends [
- ...infer Head,
- infer Tail extends ASTNode
-]
- ? Tail
- : Stack extends [infer Only extends ASTNode]
- ? Only
- : never;
-
-export type StackWithoutLast<Stack extends ParserCtx["stack"]> = Stack extends [
- ...infer Head extends ASTNode[],
- infer Tail
-]
- ? [...Head]
- : Stack extends [infer Only extends ASTNode]
- ? []
- : never;
-
-type NULL_SENTINEL = {
- NULL: true;
-};
-
-export type ParseNumberLiteral<T extends string> =
- T extends `${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, []>];
-}>;