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| DATE | 2016-03-14 |
| FROM | From: "Ruben.Safir"
|
| SUBJECT | Subject: [Learn] CTX object
|
From learn-bounces-at-nylxs.com Mon Mar 14 19:03:30 2016
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From: "Ruben.Safir"
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To: learn-at-nylxs.com, Christopher League ,
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Subject: [Learn] CTX object
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can anyone tell me where this ctx object is defined and when it is
instantiated?
visitProg(ctx) top-level program
where ctx.stmt(0).getText() is "n=5"
and ctx.stmt(1).getText() is "print -3*(n+1)"
visitStmt(ctx) assignment statement
where ctx.ID().getText() is "n"
and ctx.expr().getText() is "5"
visitExpr(ctx) numeric literal
where ctx.NUM().getText() is "5"
visitStmt(ctx) print statementan
where ctx.ID() is null
and ctx.expr().getText() is "-3*(n+1)"
visitExpr(ctx) multiplication
where ctx.expr(0).getText() is "-3"
and ctx.expr(1).getText() is "(n+1)"
visitExpr(ctx) negation
where ctx.expr(0).getText() is "3"
visitExpr(ctx) numeric literal
where ctx.NUM().getText() is "3"
visitExpr(ctx) parentheses
where ctx.expr(0).getText() is "n+1"
visitExpr(ctx) addition
where ctx.expr(0).getText() is "n"
and ctx.expr(1).getText() is "1"
visitExpr(ctx) variable
where ctx.ID().getText() is "n"
visitExpr(ctx) numeric literal
where ctx.NUM().getText() is "1"
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