Add 2 interactive examples
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@ -42,7 +42,7 @@
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padding: 0.5rem 0;
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}
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.markdown pre {
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.markdown > pre {
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margin: 0.5em 0;
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padding: 0.75em 0.75em;
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color: var(--code-theme-color);
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@ -99,7 +99,7 @@ function highlightCode(lines: Array<string>): string {
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const codeHtml = highlightCode(trimAndDedent(code));
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---
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<div class="bg-black text-white rounded"
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<div class="bg-black text-white rounded px-1"
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x-data={`{
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line: 0,
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stdout: "",
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@ -110,12 +110,12 @@ const codeHtml = highlightCode(trimAndDedent(code));
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}`}
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>
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<span class="inline-block bg-[var(--code-theme-bg-acolor)] px-2 rounded-tl rounded-tr font-mono text-sm">thp code</span>
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<pre class="language-thp" style="margin: 0; border-top-left-radius: 0;" data-disabled><code set:html={codeHtml}></code></pre>
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<pre class="language-thp" style="margin: 0;" data-disabled><code set:html={codeHtml}></code></pre>
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<div class="grid grid-cols-2 font-mono text-sm">
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<div>
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<div class="p-1 border-b border-r border-white">stdout</div>
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<div class="h-24 p-1 border-r border-white">
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<code class="bg-black" x-text="stdout"></code>
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<pre><code class="bg-black" x-text="stdout"></code></pre>
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</div>
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</div>
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<div>
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@ -9,7 +9,7 @@ const { frontmatter, headings } = Astro.props;
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const posts = await Astro.glob("../pages/learn/**/*.{md,mdx}");
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// The index.md page must have a `pagesLayout` frontmatter, which declares the order of all the pages.
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const indexSubpath = `/learn/index.md`;
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const indexSubpath = `/learn/index.mdx`;
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const indexPage = posts.find((post) => post.file.endsWith(indexSubpath));
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@ -14,36 +14,3 @@ print("Hello, world!")
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Then run `thp hello.thp`
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## Try
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<InteractiveCode
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code={`
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val x = 322
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var y = 322
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fun f(Int a, Int b) {
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print("hello {a} {b}")
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}
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f(x, y)
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`}
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steps={`[
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[["line", 1]],
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[
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["line", 2],
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["set", "x", "322"]
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],
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[
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["line", 8],
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["set", "y", "322"]
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],
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[["line", 4]],
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[["line", 5]],
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[
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["out", "gaaaa 322 322"],
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["line", 6]
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],
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[["line", 8]],
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[["line", 0]]
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]`}
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></InteractiveCode>
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@ -2,6 +2,7 @@
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layout: ../../../layouts/PagesLayout.astro
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title: Try/Exceptions
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---
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import InteractiveCode from "../../../components/InteractiveCode.astro";
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# Try/exceptions
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@ -62,21 +63,62 @@ via try expressions:
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### Naked try
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Use a naked `try` when you want to rethrow an error, if any.
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Use a naked `try` when you want to rethrow an error, if there is any.
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```thp
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// May return an Int or an Exception
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fun dangerous() -> Int!Exception
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{...}
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<InteractiveCode
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code={`
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fun dangerous() -> Int!Exception
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{ // May throw randomly
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return if Math.random() < 0.5 { 50 }
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else { Exception("Unlucky") }
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}
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fun run() -> !Exception
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{ // If \`dangerous()\` throws, the function exits with the same error.
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// Otherwise, continues
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val result = try dangerous()
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print("The result is {result}")
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}
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val res1 = run() // First, without error
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val res2 = run() // Then, an example with error
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`}
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steps={`[
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[["line", 14]],
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[["line", 7]],
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[["line", 10]],
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[["line", 1]],
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[["line", 3]],
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[
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["line", 10],
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["set", "result", 50]
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],
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[["line", 11]],
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[
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["line", 14],
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["out", "The result is 50\\n"],
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],
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[
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["line", 15],
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["set", "res1", "<empty>"],
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],
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[["line", 7]],
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[["line", 10]],
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[["line", 1]],
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[["line", 3]],
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[["line", 4]],
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[
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["line", 10],
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["set", "result", "Exception(\\"Unlucky\\")"]
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],
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[["line", 15]],
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[
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["line", 0,],
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["set", "res2", "Exception(\\"Unlucky\\")"],
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]
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]`}
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></InteractiveCode>
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fun run() -> !Exception
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{
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// Use a naked `try` to rethrow if there's an error
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val result = try dangerous()
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// Here result is `Int`
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print(result)
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}
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```
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In the previous example:
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@ -46,8 +46,9 @@ pagesLayout:
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- path: interfaces
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- path: anonymous
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- path: magic
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---
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import InteractiveCode from "../../components/InteractiveCode.astro";
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# Welcome
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@ -57,12 +58,49 @@ THP is a new programming language that compiles to PHP.
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<br>
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This page discusses some of the design decitions of the language,
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if you want to install THP go to the [installation guide](install)
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If you want to learn the language, go to the learn section.
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## Interactive execution
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The documentation contains snippets of interactive THP code, like this:
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<InteractiveCode
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code={`
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val x = "android"
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var y = 17
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fun f(Int a, Int b) {
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print("hello, {a} {b}")
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}
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f(x, y)
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`}
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steps={`[
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[["line", 1]],
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[
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["line", 2],
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["set", "String x", "\\"android\\""]
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],
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[
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["line", 8],
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["set", "Int y", "17"]
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],
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[["line", 4]],
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[["line", 5]],
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[
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["out", "hello, android 17"],
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["line", 6]
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],
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[["line", 8]],
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[["line", 0]]
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]`}
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></InteractiveCode>
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Use the `Step` and `Reset` buttons to emulate the execution of a
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THP program!
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## Goals
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Loading…
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