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https://github.com/letic/terraform-provider-google.git
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961c878e0d
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
package hcl
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// ExprMap tests if the given expression is a static map construct and,
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// if so, extracts the expressions that represent the map elements.
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// If the given expression is not a static map, error diagnostics are
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// returned.
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//
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// A particular Expression implementation can support this function by
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// offering a method called ExprMap that takes no arguments and returns
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// []KeyValuePair. This method should return nil if a static map cannot
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// be extracted. Alternatively, an implementation can support
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// UnwrapExpression to delegate handling of this function to a wrapped
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// Expression object.
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func ExprMap(expr Expression) ([]KeyValuePair, Diagnostics) {
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type exprMap interface {
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ExprMap() []KeyValuePair
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}
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physExpr := UnwrapExpressionUntil(expr, func(expr Expression) bool {
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_, supported := expr.(exprMap)
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return supported
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})
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if exM, supported := physExpr.(exprMap); supported {
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if pairs := exM.ExprMap(); pairs != nil {
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return pairs, nil
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}
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}
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return nil, Diagnostics{
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&Diagnostic{
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Severity: DiagError,
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Summary: "Invalid expression",
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Detail: "A static map expression is required.",
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Subject: expr.StartRange().Ptr(),
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},
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}
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}
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// KeyValuePair represents a pair of expressions that serve as a single item
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// within a map or object definition construct.
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type KeyValuePair struct {
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Key Expression
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Value Expression
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}
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