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Referencing a function prototype with no type parameters leads to assertion failure #1181
Description
If you reference a function prototype that requires a type parameter and omit that type parameter, you get an assertion failure rather than a helpful error:
function doit<T,X,O,N>(x: T): T {
return x
}
export function test(x: i32): void {
let x = doit;
}
Returns
ERROR: AssertionError: assertion failed
at assert (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/std/portable/index.js:184:9)
at Resolver.resolveFunction (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/resolver.ts:2691:7)
at Compiler.compileIdentifierExpression (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:7954:46)
at Compiler.compileExpression (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:3327:21)
at Compiler.compileBinaryExpression (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:3735:25)
at Compiler.compileExpression (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:3302:21)
at Compiler.compileVariableStatement (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:2868:25)
at Compiler.compileStatement (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:1984:21)
at Compiler.compileStatements (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:2031:23)
at Compiler.compileFunctionBody (/Users/duncanuszkay/src/github.com/Shopify/as-fork/assemblyscript/src/compiler.ts:1393:20)
This came up for us when we made this typo:
let x = doit<String("hey!"); //Forgot the other >
Going to open up a PR to fix this momentarily
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