ifc-expressions
Version:
Parsing and evaluation of IFC expressions
56 lines (55 loc) • 2.55 kB
JavaScript
import { ExprBase } from "../ExprBase.js";
import { ExprKind } from "../ExprKind.js";
import { ExprEvalErrorObj, ExprEvalStatus, isExprEvalError, } from "../ExprEvalResult.js";
import { ContextObjectValue } from "../../value/ContextObjectValue.js";
import { getBuiltinMemberValue, toExpressionValue, unwrapExpressionValue, } from "../../builtin/BuiltinRuntimeValueConverter.js";
export class BuiltinFunctionCallExpr extends ExprBase {
constructor(target, name, args, type, targetName) {
super(ExprKind.REF_BUILTIN_FUNCTION);
this.target = target;
this.name = name;
this.args = args;
this.type = type;
this.targetName = targetName;
}
getChildren() {
return [this.target, ...this.args];
}
evaluate(ctx, localCtx) {
const targetResult = this.target.evaluate(ctx, localCtx);
if (isExprEvalError(targetResult)) {
return targetResult;
}
if (!(targetResult.result instanceof ContextObjectValue)) {
return new ExprEvalErrorObj(this.getKind(), ExprEvalStatus.TYPE_ERROR, `Builtin function '${this.name}' requires a context object target`, this.getTextSpan());
}
const evaluatedArgs = [];
for (const arg of this.args) {
const argResult = arg.evaluate(ctx, localCtx);
if (isExprEvalError(argResult)) {
return argResult;
}
evaluatedArgs.push(argResult.result);
}
const fn = getBuiltinMemberValue(targetResult.result, this.name);
if (typeof fn !== "function") {
return new ExprEvalErrorObj(this.getKind(), ExprEvalStatus.NOT_FOUND, `No builtin function '${this.name}' found on '${this.targetName}'`, this.getTextSpan());
}
const rawResult = fn.apply(targetResult.result.getValue(), evaluatedArgs.map((arg) => unwrapExpressionValue(arg)));
if (rawResult === undefined || rawResult === null) {
return new ExprEvalErrorObj(this.getKind(), ExprEvalStatus.NOT_FOUND, `Builtin function '${this.name}' on '${this.targetName}' returned no value`, this.getTextSpan());
}
return this.wrapInResultIfNecessary(toExpressionValue(rawResult, this.type));
}
buildExprString(builder) {
builder
.appendExpr(this.target)
.appendString(`.${this.name}(`)
.appendExprArray(this.args)
.appendString(")");
}
getType() {
return this.type;
}
}
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