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shader: Better error message

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Hajime Hoshi 2020-07-05 03:23:56 +09:00
parent 380b7382ac
commit fb63df48ae
1 changed files with 6 additions and 1 deletions
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7
internal/shader/stmt.go
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@ -18,6 +18,7 @@ import (
"fmt" "fmt"
"go/ast" "go/ast"
"go/token" "go/token"
"strings"
"github.com/hajimehoshi/ebiten/internal/shaderir" "github.com/hajimehoshi/ebiten/internal/shaderir"
) )
@ -117,7 +118,11 @@ func (cs *compileState) parseStmt(block *block, stmt ast.Stmt, inParams []variab
return nil, false return nil, false
} }
if len(ts) != 1 || ts[0].Main != shaderir.Bool { if len(ts) != 1 || ts[0].Main != shaderir.Bool {
cs.addError(stmt.Pos(), fmt.Sprintf("if-condition must be bool but: %#v", ts)) var tss []string
for _, t := range ts {
tss = append(tss, t.String())
}
cs.addError(stmt.Pos(), fmt.Sprintf("if-condition must be bool but: %s", strings.Join(tss, ", ")))
return nil, false return nil, false
} }
stmts = append(stmts, ss...) stmts = append(stmts, ss...)