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Everywhere: Replace calls to console.assert and throws with assertions

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This patch replaces console.assert calls and random throw new Error
calls to crash on undefined behavior with predefined assertion
functions from utils.
This commit is contained in:
networkException 2021-10-24 23:06:35 +02:00
parent 4d71efb394
commit 5afae11193
2 changed files with 20 additions and 35 deletions
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25
html/highlighter.ts
View file

@ -2,6 +2,7 @@ import { Palette } from "./highlighter/palette";
import { Node, Position } from "./highlighter/node";
import { State } from "./highlighter/state";
import { Token, Type } from "./tokenizer/token";
import { TODO, VERIFY, VERIFY_NOT_REACHED } from "../util/assertions.js";
export class Highlighter {
private state: State = State.Undefined;
@ -28,7 +29,7 @@ export class Highlighter {
case Type.DOCTYPE: this.reconsumeIn(State.DOCTYPE); break;
case Type.Comment: this.reconsumeIn(State.Comment); break;
case Type.EndOfFile: this.finished = true; break;
default: throw new Error(`FIXME (Highlighter#spin, Unimplemented token type '${this.currentToken.type}')`);
default: TODO(`Highlighter#spin, Unimplemented token type '${this.currentToken.type}'`);
}
break;
@ -39,7 +40,7 @@ export class Highlighter {
this.createNode({ position: { line: 0, character: 0 }, color: Palette.Plain, content: '' });
this.reconsumeIn(State.Plain);
break;
default: throw new Error('BeforePlain')
default: VERIFY_NOT_REACHED();
}
break;
@ -159,7 +160,7 @@ export class Highlighter {
this.state = State.Undefined;
break;
default: throw new Error(`FIXME (Highlighter#iterate, Unimplemented state '${this.state}')`);
default: TODO(`Highlighter#iterate, Unimplemented state '${this.state}'`);
}
}
@ -178,9 +179,7 @@ export class Highlighter {
private consumeNextTokenOfType<T extends Type>(type: T): Token & { type: T } {
this.currentToken = this.tokens[this.pointer];
console.assert(this.currentToken.type === type, {
message: `Highlighter#consumeNextOfType: Expected '${type}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === type, `Highlighter#consumeNextOfType: Expected '${type}', got '${this.currentToken.type}' instead`);
this.pointer++;
@ -190,9 +189,8 @@ export class Highlighter {
private consumeNextTokenOfEitherType<T extends Type, U extends Type>(a: T, b: U): Token & { type: T | U } {
this.currentToken = this.tokens[this.pointer];
console.assert(this.currentToken.type === a || this.currentToken.type === b, {
message: `Highlighter#consumeNextTokenOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === a || this.currentToken.type === b,
`Highlighter#consumeNextTokenOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`);
this.pointer++;
@ -214,17 +212,14 @@ export class Highlighter {
}
private currentTokenOfType<T extends Type>(type: T): Token & { type: T } {
console.assert(this.currentToken.type === type, {
message: `Highlighter#currentTokenOfType: Expected '${type}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === type, `Highlighter#currentTokenOfType: Expected '${type}', got '${this.currentToken.type}' instead`);
return this.currentToken as Token & { type: T };
}
private currentTokenOfEitherType<T extends Type, U extends Type>(a: T, b: U): Token & { type: T | U } {
console.assert(this.currentToken.type === a || this.currentToken.type === b, {
message: `Highlighter#currentTokenOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === a || this.currentToken.type === b,
`Highlighter#currentTokenOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`);
return this.currentToken as Token & { type: T };
}

30
html/tokenizer.ts
View file

@ -1,9 +1,9 @@
import { TODO, VERIFY } from "../util/assertions.js";
import { ParseError } from "./errors.js";
import { entities } from "./tokenizer/entities.js";
import { State } from "./tokenizer/state.js";
import { AttributeList, Token, Type } from "./tokenizer/token.js";
// FIXME: Replace console.assert calls will throwing errors
export class Tokenizer {
private state: State = State.Data;
private returnState!: State;
@ -510,7 +510,7 @@ export class Tokenizer {
break;
}
default: throw new Error(`FIXME (Tokenizer#iterate, Unimplemented state '${this.state}')`);
default: TODO(`Tokenizer#iterate, Unimplemented state '${this.state}'`);
}
}
@ -581,9 +581,7 @@ export class Tokenizer {
for (let i = 0; i < input.length; i++) {
const consumed = this.consumeNext();
console.assert(consumed === input[i], {
message: `Tokenizer#consumeNextFew: Expected '${input[i]}' (${input} at ${i}), got ${consumed} instead`
});
VERIFY(consumed === input[i], `Tokenizer#consumeNextFew: Expected '${input[i]}' (${input} at ${i}), got ${consumed} instead`);
}
}
@ -591,9 +589,8 @@ export class Tokenizer {
for (let i = 0; i < input.length; i++) {
const consumed = this.consumeNext()?.toLowerCase();
console.assert(consumed === input[i].toLowerCase(), {
message: `Tokenizer#consumeNextFewCaseInsensitive: Expected '${input[i].toLowerCase()}' (${input.toLowerCase()} at ${i}), got ${consumed} instead`
});
VERIFY(consumed === input[i].toLowerCase(),
`Tokenizer#consumeNextFewCaseInsensitive: Expected '${input[i].toLowerCase()}' (${input.toLowerCase()} at ${i}), got ${consumed} instead`);
}
}
@ -602,33 +599,26 @@ export class Tokenizer {
}
private emitCurrentOfType(type: Type): void {
console.assert(this.currentToken.type === type, {
message: `Tokenizer#emitCurrentOfType: Expected '${type}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === type, `Tokenizer#emitCurrentOfType: Expected '${type}', got '${this.currentToken.type}' instead`);
this.tokens.push(this.currentToken);
}
private emitCurrentOfEitherType(a: Type, b: Type): void {
console.assert(this.currentToken.type === a || this.currentToken.type === b, {
message: `Tokenizer#emitCurrentOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === a || this.currentToken.type === b, `Tokenizer#emitCurrentOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`);
this.tokens.push(this.currentToken);
}
private currentOfType<T extends Type>(type: T): Token & { type: T } {
console.assert(this.currentToken.type === type, {
message: `Tokenizer#currentOfType: Expected '${type}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === type, `Tokenizer#currentOfType: Expected '${type}', got '${this.currentToken.type}' instead`);
return this.currentToken as Token & { type: T };
}
private currentOfEitherType<T extends Type, U extends Type>(a: T, b: U): Token & { type: T | U } {
console.assert(this.currentToken.type === a || this.currentToken.type === b, {
message: `Tokenizer#currentOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`
});
VERIFY(this.currentToken.type === a || this.currentToken.type === b,
`Tokenizer#currentOfEitherType: Expected '${a}' or '${b}', got '${this.currentToken.type}' instead`);
return this.currentToken as Token & { type: T };
}