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This adds support references like 'Sheet 1'! so that formulas can pull values from other sheets.
35 lines
939 B
Go
35 lines
939 B
Go
// Copyright 2017 Baliance. All rights reserved.
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//
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// Use of this source code is governed by the terms of the Affero GNU General
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// Public License version 3.0 as published by the Free Software Foundation and
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// appearing in the file LICENSE included in the packaging of this file. A
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// commercial license can be purchased by contacting sales@baliance.com.
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package formula
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import "fmt"
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type PrefixExpr struct {
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pfx Expression
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exp Expression
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}
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func NewPrefixExpr(pfx, exp Expression) Expression {
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return &PrefixExpr{pfx, exp}
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}
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func (p PrefixExpr) Eval(ctx Context, ev Evaluator) Result {
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ref := p.pfx.Reference(ctx, ev)
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switch ref.Type {
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case ReferenceTypeSheet:
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sheetCtx := ctx.Sheet(ref.Value)
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return p.exp.Eval(sheetCtx, ev)
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default:
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return MakeErrorResult(fmt.Sprintf("no support for reference type %s", ref.Type))
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}
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}
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func (p PrefixExpr) Reference(ctx Context, ev Evaluator) Reference {
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return ReferenceInvalid
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}
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