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suffering

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This commit is contained in:
Aidan K. Ewart 2020-11-26 14:03:48 +00:00
parent c3c39b1fff
commit a8ec29c216
2 changed files with 22 additions and 1 deletions
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19
tracer/builtin.mjs
View File

@ -81,6 +81,13 @@ const addDefn = (name, args, fn) => {
}
}
const addConst = (name, typ, val) => {
defnOp(name, [{type:typ, val:val}])
}
const unary = (fn, outty) => (args) => [{type:outty, val:fn(args[0])}]
const binary = (fn, outty) => (args) => [{type:outty, val:fn(args[0], args[1])}]
const add = (args) => [{type:"num", val:args[0] + args[1]}];
const sub = (args) => [{type:"num", val:args[0] - args[1]}];
const div = (args) => [{type:"num", val:args[0] / args[1]}];
@ -103,11 +110,23 @@ const eq = (args) => {
}
}
const coerce = (args) => [{type:args[1].val, val:args[0].val}]
addConst("pi", "num", Math.PI);
addConst("e", "num", Math.E);
addDefn("+", ["num", "num"], add);
addDefn("-", ["num", "num"], sub);
addDefn("/", ["num", "num"], div);
addDefn("*", ["num", "num"], mult);
addDefn("^", ["num", "num"], pow);
addDefn("sin", ["num"], unary(Math.sin, "num"));
addDefn("cos", ["num"], unary(Math.cos, "num"));
addDefn("tan", ["num"], unary(Math.tan, "num"));
addDefn("asin", ["num"], unary(Math.asin, "num"));
addDefn("acos", ["num"], unary(Math.acos, "num"));
addDefn("atan", ["num"], unary(Math.atan, "num"));
addDefn("ln", ["num"], unary(Math.log, "num"));
addDefn("coerce", 2, coerce)
addDefn("sqrt", ["num"], root);
addDefn("==", 4, eq);
addDefn("pair", 2, pair);

4
tracer/main.js
View File

@ -98,11 +98,13 @@ stepb.onclick = _ => {
if (!(pos.start === 0 && pos.end === 0)) {
insbox.innerHTML = highlight(input, pos.start, pos.end, "green");
}
/*
if (state.stacks.length > 1) {
outbox.innerHTML = "... " + prettyprint(state.stacks[state.stacks.length-1]);
} else {
outbox.innerHTML = prettyprint(state.stacks[0]);
}
}*/
outbox.innerHTML = state.stacks.map(prettyprint).join("\n")
}
}