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console output with format (#1565)
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Ryan Dahl
parent
7f88b5fff3
commit
6904628aaa
2 changed files with 193 additions and 22 deletions
127
js/console.ts
127
js/console.ts
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@ -14,6 +14,16 @@ type ConsoleOptions = Partial<{
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// Default depth of logging nested objects
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const DEFAULT_MAX_DEPTH = 4;
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// Char codes
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const CHAR_PERCENT = 37; /* % */
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const CHAR_LOWERCASE_S = 115; /* s */
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const CHAR_LOWERCASE_D = 100; /* d */
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const CHAR_LOWERCASE_I = 105; /* i */
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const CHAR_LOWERCASE_F = 102; /* f */
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const CHAR_LOWERCASE_O = 111; /* o */
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const CHAR_UPPERCASE_O = 79; /* O */
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const CHAR_LOWERCASE_C = 99; /* c */
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// tslint:disable-next-line:no-any
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function getClassInstanceName(instance: any): string {
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if (typeof instance !== "object") {
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@ -342,38 +352,125 @@ export function stringifyArgs(
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args: any[],
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options: ConsoleOptions = {}
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): string {
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const out: string[] = [];
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const { collapsedAt, indentLevel } = options;
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for (const a of args) {
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if (typeof a === "string") {
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out.push(a);
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const first = args[0];
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let a = 0;
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let str = "";
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let join = "";
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if (typeof first === "string") {
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let tempStr: string;
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let lastPos = 0;
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for (let i = 0; i < first.length - 1; i++) {
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if (first.charCodeAt(i) === CHAR_PERCENT) {
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const nextChar = first.charCodeAt(++i);
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if (a + 1 !== args.length) {
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switch (nextChar) {
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case CHAR_LOWERCASE_S:
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// format as a string
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tempStr = String(args[++a]);
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break;
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case CHAR_LOWERCASE_D:
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case CHAR_LOWERCASE_I:
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// format as an integer
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const tempInteger = args[++a];
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if (typeof tempInteger === "bigint") {
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tempStr = `${tempInteger}n`;
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} else if (typeof tempInteger === "symbol") {
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tempStr = "NaN";
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} else {
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out.push(
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// use default maximum depth for null or undefined argument
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stringify(
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a,
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tempStr = `${parseInt(tempInteger, 10)}`;
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}
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break;
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case CHAR_LOWERCASE_F:
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// format as a floating point value
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const tempFloat = args[++a];
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if (typeof tempFloat === "symbol") {
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tempStr = "NaN";
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} else {
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tempStr = `${parseFloat(tempFloat)}`;
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}
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break;
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case CHAR_LOWERCASE_O:
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case CHAR_UPPERCASE_O:
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// format as an object
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tempStr = stringify(
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args[++a],
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// tslint:disable-next-line:no-any
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new Set<any>(),
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0,
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// tslint:disable-next-line:triple-equals
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options.depth != undefined ? options.depth : DEFAULT_MAX_DEPTH
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);
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break;
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case CHAR_PERCENT:
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str += first.slice(lastPos, i);
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lastPos = i + 1;
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continue;
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case CHAR_LOWERCASE_C:
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// TODO: applies CSS style rules to the output string as specified
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continue;
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default:
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// any other character is not a correct placeholder
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continue;
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}
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if (lastPos !== i - 1) {
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str += first.slice(lastPos, i - 1);
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}
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str += tempStr;
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lastPos = i + 1;
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} else if (nextChar === CHAR_PERCENT) {
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str += first.slice(lastPos, i);
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lastPos = i + 1;
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}
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}
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}
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if (lastPos !== 0) {
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a++;
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join = " ";
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if (lastPos < first.length) {
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str += first.slice(lastPos);
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}
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}
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}
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while (a < args.length) {
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const value = args[a];
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str += join;
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if (typeof value === "string") {
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str += value;
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} else {
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// use default maximum depth for null or undefined argument
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str += stringify(
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value,
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// tslint:disable-next-line:no-any
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new Set<any>(),
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0,
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// tslint:disable-next-line:triple-equals
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options.depth != undefined ? options.depth : DEFAULT_MAX_DEPTH
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)
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);
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}
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join = " ";
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a++;
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}
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let outstr = out.join(" ");
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const { collapsedAt, indentLevel } = options;
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if (
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!isCollapsed(collapsedAt, indentLevel) &&
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indentLevel != null &&
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indentLevel > 0
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) {
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const groupIndent = " ".repeat(indentLevel);
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if (outstr.indexOf("\n") !== -1) {
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outstr = outstr.replace(/\n/g, `\n${groupIndent}`);
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if (str.indexOf("\n") !== -1) {
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str = str.replace(/\n/g, `\n${groupIndent}`);
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}
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outstr = groupIndent + outstr;
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str = groupIndent + str;
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}
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return outstr;
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return str;
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}
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type PrintFunc = (x: string, isErr?: boolean, printsNewline?: boolean) => void;
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@ -145,6 +145,80 @@ test(function consoleTestStringifyWithDepth() {
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);
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});
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test(function consoleTestWithIntegerFormatSpecifier() {
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assertEqual(stringify("%i"), "%i");
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assertEqual(stringify("%i", 42.0), "42");
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assertEqual(stringify("%i", 42), "42");
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assertEqual(stringify("%i", "42"), "42");
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assertEqual(stringify("%i", "42.0"), "42");
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assertEqual(stringify("%i", 1.5), "1");
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assertEqual(stringify("%i", -0.5), "0");
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assertEqual(stringify("%i", ""), "NaN");
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assertEqual(stringify("%i", Symbol()), "NaN");
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assertEqual(stringify("%i %d", 42, 43), "42 43");
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assertEqual(stringify("%d %i", 42), "42 %i");
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assertEqual(stringify("%d", 12345678901234567890123), "1");
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assertEqual(
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stringify("%i", 12345678901234567890123n),
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"12345678901234567890123n"
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);
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});
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test(function consoleTestWithFloatFormatSpecifier() {
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assertEqual(stringify("%f"), "%f");
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assertEqual(stringify("%f", 42.0), "42");
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assertEqual(stringify("%f", 42), "42");
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assertEqual(stringify("%f", "42"), "42");
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assertEqual(stringify("%f", "42.0"), "42");
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assertEqual(stringify("%f", 1.5), "1.5");
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assertEqual(stringify("%f", -0.5), "-0.5");
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assertEqual(stringify("%f", Math.PI), "3.141592653589793");
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assertEqual(stringify("%f", ""), "NaN");
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assertEqual(stringify("%f", Symbol("foo")), "NaN");
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assertEqual(stringify("%f", 5n), "5");
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assertEqual(stringify("%f %f", 42, 43), "42 43");
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assertEqual(stringify("%f %f", 42), "42 %f");
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});
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test(function consoleTestWithStringFormatSpecifier() {
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assertEqual(stringify("%s"), "%s");
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assertEqual(stringify("%s", undefined), "undefined");
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assertEqual(stringify("%s", "foo"), "foo");
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assertEqual(stringify("%s", 42), "42");
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assertEqual(stringify("%s", "42"), "42");
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assertEqual(stringify("%s %s", 42, 43), "42 43");
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assertEqual(stringify("%s %s", 42), "42 %s");
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assertEqual(stringify("%s", Symbol("foo")), "Symbol(foo)");
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});
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test(function consoleTestWithObjectFormatSpecifier() {
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assertEqual(stringify("%o"), "%o");
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assertEqual(stringify("%o", 42), "42");
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assertEqual(stringify("%o", "foo"), "foo");
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assertEqual(stringify("o: %o, a: %O", {}, []), "o: {}, a: []");
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assertEqual(stringify("%o", { a: 42 }), "{ a: 42 }");
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assertEqual(
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stringify("%o", { a: { b: { c: { d: new Set([1]) } } } }),
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"{ a: { b: { c: { d: [Set] } } } }"
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);
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});
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test(function consoleTestWithVariousOrInvalidFormatSpecifier() {
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assertEqual(stringify("%s:%s"), "%s:%s");
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assertEqual(stringify("%i:%i"), "%i:%i");
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assertEqual(stringify("%d:%d"), "%d:%d");
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assertEqual(stringify("%%s%s", "foo"), "%sfoo");
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assertEqual(stringify("%s:%s", undefined), "undefined:%s");
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assertEqual(stringify("%s:%s", "foo", "bar"), "foo:bar");
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assertEqual(stringify("%s:%s", "foo", "bar", "baz"), "foo:bar baz");
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assertEqual(stringify("%%%s%%", "hi"), "%hi%");
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assertEqual(stringify("%d:%d", 12), "12:%d");
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assertEqual(stringify("%i:%i", 12), "12:%i");
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assertEqual(stringify("%f:%f", 12), "12:%f");
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assertEqual(stringify("o: %o, a: %o", {}), "o: {}, a: %o");
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assertEqual(stringify("abc%", 1), "abc% 1");
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});
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test(function consoleTestCallToStringOnLabel() {
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const methods = ["count", "countReset", "time", "timeLog", "timeEnd"];
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