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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | 69x 69x 69x 251x 69x 49x 1x 48x 1x 47x 69x 147x 69x 202x 69x 74x 69x 21x 69x 34x 34x 25x 9x 7x 9x 9x 69x 31x 6x 25x 69x 16x | import { assertUnreachable } from "shared/lib/helpers/assert";
import {
Associativity,
FunctionSymbol,
functionSymbols,
OperatorSymbol,
operatorSymbols,
functionArgsLen,
Token,
} from "./types";
export const isNumeric = (str: string) => {
return (
str.toLowerCase() === "true" ||
str.toLowerCase() === "false" ||
(!isNaN(Number(str)) && isFinite(Number(str)))
);
};
export const toNumber = (str: string) => {
if (str.toLowerCase() === "true") {
return 1;
}
if (str.toLowerCase() === "false") {
return 0;
}
return Number(str);
};
export const isOperatorSymbol = (x: string): x is OperatorSymbol => {
return (operatorSymbols as unknown as string[]).indexOf(x) > -1;
};
export const isFunctionSymbol = (x: string): x is FunctionSymbol => {
return (functionSymbols as unknown as string[]).indexOf(x) > -1;
};
export const isVariable = (token: string): boolean => {
return !!/^[$A-Z_][0-9A-Z_$]*$/i.exec(token);
};
export const isConstant = (token: string): boolean => {
return !!/^@([a-z0-9-]{36}|engine::[^@]+)@$/i.exec(token);
};
export const getPrecedence = (token: Token): number => {
Iif (token.type === "FUN") {
return 4;
}
if (token.type === "OP") {
switch (token.operator) {
case "~":
case "!":
case "neg":
return 14;
case "*":
case "/":
case "%":
return 12;
case "+":
case "-":
return 11;
case "<<":
case ">>":
return 10;
case "<":
case ">":
case ">=":
case "<=":
return 9;
case "==":
case "!=":
return 8;
case "&":
return 7;
case "^":
return 6;
case "|":
return 5;
case "&&":
return 4;
case "||":
return 3;
}
/* istanbul ignore next */
assertUnreachable(token.operator);
}
return -1;
};
export const getAssociativity = (token: Token): Associativity => {
if (
token.type === "OP" &&
(token.operator === "!" || token.operator === "~")
) {
return Associativity.Right;
}
return Associativity.Left;
};
export const getArgsLen = (symbol: FunctionSymbol) => {
return functionArgsLen[symbol];
};
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