@glimmer/compiler
Version:
81 lines (69 loc) • 12.7 kB
JavaScript
import { generateSyntaxError } from '@glimmer/syntax';
import { Err, Ok, Result } from '../../../../shared/result';
import * as mir from '../../../2-encoding/mir';
import { VISIT_EXPRS } from '../../visitors/expressions';
function assertIfUnlessInlineKeyword(type) {
return originalNode => {
var _a;
let inverted = type === 'unless';
let node = originalNode.type === 'AppendContent' ? originalNode.value : originalNode;
let named = node.type === 'Call' ? node.args.named : null;
let positional = node.type === 'Call' ? node.args.positional : null;
if (named && !named.isEmpty()) {
return Err(generateSyntaxError(`(${type}) cannot receive named parameters, received ${named.entries.map(e => e.name.chars).join(', ')}`, originalNode.loc));
}
let condition = positional === null || positional === void 0 ? void 0 : positional.nth(0);
if (!positional || !condition) {
return Err(generateSyntaxError(`When used inline, (${type}) requires at least two parameters 1. the condition that determines the state of the (${type}), and 2. the value to return if the condition is ${inverted ? 'false' : 'true'}. Did not receive any parameters`, originalNode.loc));
}
let truthy = positional.nth(1);
let falsy = positional.nth(2);
if (truthy === null) {
return Err(generateSyntaxError(`When used inline, (${type}) requires at least two parameters 1. the condition that determines the state of the (${type}), and 2. the value to return if the condition is ${inverted ? 'false' : 'true'}. Received only one parameter, the condition`, originalNode.loc));
}
if (positional.size > 3) {
return Err(generateSyntaxError(`When used inline, (${type}) can receive a maximum of three positional parameters 1. the condition that determines the state of the (${type}), 2. the value to return if the condition is ${inverted ? 'false' : 'true'}, and 3. the value to return if the condition is ${inverted ? 'true' : 'false'}. Received ${(_a = positional === null || positional === void 0 ? void 0 : positional.size) !== null && _a !== void 0 ? _a : 0} parameters`, originalNode.loc));
}
return Ok({
condition,
truthy,
falsy
});
};
}
function translateIfUnlessInlineKeyword(type) {
let inverted = type === 'unless';
return ({
node,
state
}, {
condition,
truthy,
falsy
}) => {
let conditionResult = VISIT_EXPRS.visit(condition, state);
let truthyResult = VISIT_EXPRS.visit(truthy, state);
let falsyResult = falsy ? VISIT_EXPRS.visit(falsy, state) : Ok(null);
return Result.all(conditionResult, truthyResult, falsyResult).mapOk(([condition, truthy, falsy]) => {
if (inverted) {
condition = new mir.Not({
value: condition,
loc: node.loc
});
}
return new mir.IfInline({
loc: node.loc,
condition,
truthy,
falsy
});
});
};
}
export function ifUnlessInlineKeyword(type) {
return {
assert: assertIfUnlessInlineKeyword(type),
translate: translateIfUnlessInlineKeyword(type)
};
}
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'false' : 'true'\n          }. Did not receive any parameters`,\n          originalNode.loc\n        )\n      );\n    }\n\n    let truthy = positional.nth(1);\n    let falsy = positional.nth(2);\n\n    if (truthy === null) {\n      return Err(\n        generateSyntaxError(\n          `When used inline, (${type}) requires at least two parameters 1. the condition that determines the state of the (${type}), and 2. the value to return if the condition is ${\n            inverted ? 'false' : 'true'\n          }. Received only one parameter, the condition`,\n          originalNode.loc\n        )\n      );\n    }\n\n    if (positional.size > 3) {\n      return Err(\n        generateSyntaxError(\n          `When used inline, (${type}) can receive a maximum of three positional parameters 1. the condition that determines the state of the (${type}), 2. the value to return if the condition is ${\n            inverted ? 'false' : 'true'\n          }, and 3. the value to return if the condition is ${\n            inverted ? 'true' : 'false'\n          }. Received ${positional?.size ?? 0} parameters`,\n          originalNode.loc\n        )\n      );\n    }\n\n    return Ok({ condition, truthy, falsy });\n  };\n}\n\nfunction translateIfUnlessInlineKeyword(type: string) {\n  let inverted = type === 'unless';\n\n  return (\n    {\n      node,\n      state,\n    }: { node: ASTv2.AppendContent | ASTv2.ExpressionNode; state: NormalizationState },\n    {\n      condition,\n      truthy,\n      falsy,\n    }: {\n      condition: ASTv2.ExpressionNode;\n      truthy: ASTv2.ExpressionNode;\n      falsy: ASTv2.ExpressionNode | null;\n    }\n  ): Result<mir.IfInline> => {\n    let conditionResult = VISIT_EXPRS.visit(condition, state);\n    let truthyResult = VISIT_EXPRS.visit(truthy, state);\n    let falsyResult = falsy ? VISIT_EXPRS.visit(falsy, state) : Ok(null);\n\n    return Result.all(conditionResult, truthyResult, falsyResult).mapOk(\n      ([condition, truthy, falsy]) => {\n        if (inverted) {\n          condition = new mir.Not({ value: condition, loc: node.loc });\n        }\n\n        return new mir.IfInline({\n          loc: node.loc,\n          condition,\n          truthy,\n          falsy,\n        });\n      }\n    );\n  };\n}\n\nexport function ifUnlessInlineKeyword(\n  type: string\n): KeywordDelegate<\n  ASTv2.CallExpression | ASTv2.AppendContent,\n  {\n    condition: ASTv2.ExpressionNode;\n    truthy: ASTv2.ExpressionNode;\n    falsy: ASTv2.ExpressionNode | null;\n  },\n  mir.IfInline\n> {\n  return {\n    assert: assertIfUnlessInlineKeyword(type),\n    translate: translateIfUnlessInlineKeyword(type),\n  };\n}\n"],"sourceRoot":""}