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expression-visitor.ts
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expression-visitor.ts
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import {
Expression,
ValueConverter,
Conditional,
AccessScope,
AccessMember,
AccessKeyed,
CallMember,
BindingBehavior,
Binary,
LiteralPrimitive,
LiteralString
} from 'aurelia-binding';
// tslint:disable:no-empty
export class ExpressionVisitor {
public visitChain(chain: any) {
this.visitArgs(chain.expressions);
}
public visitBindingBehavior(behavior: BindingBehavior) {
behavior.expression.accept(this);
this.visitArgs(behavior.args);
}
public visitValueConverter(converter: ValueConverter) {
converter.expression.accept(this);
this.visitArgs(converter.args);
}
public visitAssign(assign: any) {
assign.target.accept(this);
assign.value.accept(this);
}
public visitConditional(conditional: Conditional) {
conditional.condition.accept(this);
conditional.yes.accept(this);
conditional.no.accept(this);
}
public visitAccessThis(access: any) {
access.ancestor = access.ancestor;
}
public visitAccessScope(access: AccessScope) {
access.name = access.name;
}
public visitAccessMember(access: AccessMember) {
access.object.accept(this);
}
public visitAccessKeyed(access: AccessKeyed) {
access.object.accept(this);
access.key.accept(this);
}
public visitCallScope(call: any) {
this.visitArgs(call.args);
}
public visitCallFunction(call: any) {
call.func.accept(this);
this.visitArgs(call.args);
}
public visitCallMember(call: CallMember) {
call.object.accept(this);
this.visitArgs(call.args);
}
public visitPrefix(prefix: any) {
prefix.expression.accept(this);
}
public visitBinary(binary: Binary) {
binary.left.accept(this);
binary.right.accept(this);
}
public visitLiteralPrimitive(literal: LiteralPrimitive) {
literal.value = literal.value;
}
public visitLiteralArray(literal: any) {
this.visitArgs(literal.elements);
}
public visitLiteralObject(literal: any) {
this.visitArgs(literal.values);
}
public visitLiteralString(literal: LiteralString) {
literal.value = literal.value;
}
private visitArgs(args: Expression[]) {
for (let i = 0; i < args.length; i++) {
args[i].accept(this);
}
}
}